diff --git a/Cargo.lock b/Cargo.lock
index 8b85792aa..f01d43344 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -346,7 +346,7 @@ dependencies = [
  "fastrand",
  "futures-lite",
  "libc",
- "log 0.4.11",
+ "log",
  "nb-connect",
  "once_cell",
  "parking",
@@ -365,6 +365,18 @@ dependencies = [
  "event-listener",
 ]
 
+[[package]]
+name = "async-native-tls"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9e9e7a929bd34c68a82d58a4de7f86fffdaf97fb2af850162a7bb19dd7269b33"
+dependencies = [
+ "async-std",
+ "native-tls",
+ "thiserror",
+ "url",
+]
+
 [[package]]
 name = "async-std"
 version = "1.7.0"
@@ -382,13 +394,13 @@ dependencies = [
  "futures-lite",
  "gloo-timers",
  "kv-log-macro",
- "log 0.4.11",
+ "log",
  "memchr",
  "num_cpus",
  "once_cell",
  "pin-project-lite 0.1.11",
  "pin-utils",
- "slab 0.4.2",
+ "slab",
  "wasm-bindgen-futures",
 ]
 
@@ -444,8 +456,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf13118df3e3dce4b5ac930641343b91b656e4e72c8f8325838b01a4b1c9d45"
 dependencies = [
  "http 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.11",
- "url 2.2.0",
+ "log",
+ "url",
 ]
 
 [[package]]
@@ -491,16 +503,6 @@ version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a4521f3e3d031370679b3b140beb36dfe4801b09ac77e30c61941f97df3ef28b"
 
-[[package]]
-name = "base64"
-version = "0.9.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "489d6c0ed21b11d038c31b6ceccca973e65d73ba3bd8ecb9a2babf5546164643"
-dependencies = [
- "byteorder",
- "safemem",
-]
-
 [[package]]
 name = "base64"
 version = "0.12.3"
@@ -548,12 +550,12 @@ dependencies = [
  "itertools 0.9.0",
  "lazy_static",
  "lighthouse_metrics",
- "log 0.4.11",
+ "log",
  "lru",
  "maplit",
  "merkle_proof",
  "operation_pool",
- "parking_lot 0.11.1",
+ "parking_lot",
  "proto_array",
  "rand 0.7.3",
  "rand_core 0.5.1",
@@ -568,7 +570,7 @@ dependencies = [
  "slog",
  "sloggers",
  "slot_clock",
- "smallvec 1.5.0",
+ "smallvec",
  "state_processing",
  "store",
  "task_executor",
@@ -640,12 +642,6 @@ version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "349f9b6a179ed607305526ca489b34ad0a41aed5f7980fa90eb03160b69598fb"
 
-[[package]]
-name = "bitflags"
-version = "0.9.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4efd02e230a02e18f92fc2735f44597385ed02ad8f831e7c1c1156ee5e1ab3a5"
-
 [[package]]
 name = "bitflags"
 version = "1.2.1"
@@ -820,7 +816,7 @@ dependencies = [
  "eth2_ssz",
  "futures 0.3.8",
  "hex",
- "log 0.4.11",
+ "log",
  "logging",
  "slog",
  "slog-async",
@@ -890,17 +886,6 @@ version = "1.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "08c48aae112d48ed9f069b33538ea9e3e90aa263cfa3d1c24309612b1f7472de"
 
-[[package]]
-name = "bytes"
-version = "0.4.12"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "206fdffcfa2df7cbe15601ef46c813fce0965eb3286db6b56c583b814b51c81c"
-dependencies = [
- "byteorder",
- "either",
- "iovec",
-]
-
 [[package]]
 name = "bytes"
 version = "0.5.6"
@@ -951,7 +936,7 @@ dependencies = [
  "ethereum-types",
  "quickcheck",
  "quickcheck_macros",
- "smallvec 1.5.0",
+ "smallvec",
  "tree_hash",
 ]
 
@@ -1035,7 +1020,7 @@ checksum = "37e58ac78573c40708d45522f0d80fa2f01cc4f9b4e2bf749807255454312002"
 dependencies = [
  "ansi_term 0.11.0",
  "atty",
- "bitflags 1.2.1",
+ "bitflags",
  "strsim 0.8.0",
  "textwrap",
  "unicode-width",
@@ -1074,7 +1059,7 @@ dependencies = [
  "lazy_static",
  "lighthouse_metrics",
  "network",
- "parking_lot 0.11.1",
+ "parking_lot",
  "prometheus",
  "reqwest",
  "serde",
@@ -1093,7 +1078,7 @@ dependencies = [
  "toml",
  "tree_hash",
  "types",
- "url 2.2.0",
+ "url",
 ]
 
 [[package]]
@@ -1102,7 +1087,7 @@ version = "0.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ddfc5b9aa5d4507acaf872de71051dfd0e309860e88966e1051e462a077aac4f"
 dependencies = [
- "bitflags 1.2.1",
+ "bitflags",
 ]
 
 [[package]]
@@ -1111,7 +1096,7 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4344512281c643ae7638bbabc3af17a11307803ec8f0fcad9fae512a8bf36467"
 dependencies = [
- "bitflags 1.2.1",
+ "bitflags",
 ]
 
 [[package]]
@@ -1273,17 +1258,6 @@ dependencies = [
  "crossbeam-utils 0.8.1",
 ]
 
-[[package]]
-name = "crossbeam-deque"
-version = "0.7.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9f02af974daeee82218205558e51ec8768b48cf524bd01d550abe5573a608285"
-dependencies = [
- "crossbeam-epoch 0.8.2",
- "crossbeam-utils 0.7.2",
- "maybe-uninit",
-]
-
 [[package]]
 name = "crossbeam-deque"
 version = "0.8.0"
@@ -1291,25 +1265,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "94af6efb46fef72616855b036a624cf27ba656ffc9be1b9a3c931cfc7749a9a9"
 dependencies = [
  "cfg-if 1.0.0",
- "crossbeam-epoch 0.9.1",
+ "crossbeam-epoch",
  "crossbeam-utils 0.8.1",
 ]
 
-[[package]]
-name = "crossbeam-epoch"
-version = "0.8.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "058ed274caafc1f60c4997b5fc07bf7dc7cca454af7c6e81edffe5f33f70dace"
-dependencies = [
- "autocfg 1.0.1",
- "cfg-if 0.1.10",
- "crossbeam-utils 0.7.2",
- "lazy_static",
- "maybe-uninit",
- "memoffset 0.5.6",
- "scopeguard",
-]
-
 [[package]]
 name = "crossbeam-epoch"
 version = "0.9.1"
@@ -1320,21 +1279,10 @@ dependencies = [
  "const_fn",
  "crossbeam-utils 0.8.1",
  "lazy_static",
- "memoffset 0.6.1",
+ "memoffset",
  "scopeguard",
 ]
 
-[[package]]
-name = "crossbeam-queue"
-version = "0.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "774ba60a54c213d409d5353bda12d49cd68d14e45036a285234c8d6f91f92570"
-dependencies = [
- "cfg-if 0.1.10",
- "crossbeam-utils 0.7.2",
- "maybe-uninit",
-]
-
 [[package]]
 name = "crossbeam-utils"
 version = "0.7.2"
@@ -1674,11 +1622,11 @@ dependencies = [
  "libp2p-core 0.23.1",
  "lru_time_cache",
  "multihash 0.11.4",
- "parking_lot 0.11.1",
+ "parking_lot",
  "rand 0.7.3",
  "rlp",
  "sha2 0.9.2",
- "smallvec 1.5.0",
+ "smallvec",
  "tokio 0.3.5",
  "tokio-util 0.5.1",
  "tracing",
@@ -1791,7 +1739,7 @@ version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d7402b94a93c24e742487327a7cd839dc9d36fec9de9fb25b09f2dae459f36c3"
 dependencies = [
- "log 0.4.11",
+ "log",
 ]
 
 [[package]]
@@ -1814,7 +1762,7 @@ dependencies = [
  "ed25519-dalek",
  "hex",
  "k256",
- "log 0.4.11",
+ "log",
  "rand 0.7.3",
  "rlp",
  "serde",
@@ -1828,7 +1776,7 @@ version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "44533bbbb3bb3c1fa17d9f2e4e38bbbaf8396ba82193c4cb1b6445d711445d36"
 dependencies = [
- "log 0.4.11",
+ "log",
  "regex",
 ]
 
@@ -1840,7 +1788,7 @@ checksum = "f26ecb66b4bdca6c1409b40fb255eefc2bd4f6d135dab3c3124f80ffa2a9661e"
 dependencies = [
  "atty",
  "humantime",
- "log 0.4.11",
+ "log",
  "regex",
  "termcolor",
 ]
@@ -1855,7 +1803,7 @@ dependencies = [
  "exit-future",
  "futures 0.3.8",
  "logging",
- "parking_lot 0.11.1",
+ "parking_lot",
  "slog",
  "slog-async",
  "slog-json",
@@ -1873,7 +1821,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2d2f06b9cac1506ece98fe3231e3cc9c4410ec3d5b1f24ae1c8946f0742cdefc"
 dependencies = [
  "backtrace",
- "version_check 0.9.2",
+ "version_check",
 ]
 
 [[package]]
@@ -1893,7 +1841,7 @@ dependencies = [
  "libflate",
  "lighthouse_metrics",
  "merkle_proof",
- "parking_lot 0.11.1",
+ "parking_lot",
  "reqwest",
  "serde",
  "serde_json",
@@ -1917,6 +1865,7 @@ dependencies = [
  "futures 0.3.8",
  "serde_json",
  "tokio 0.3.5",
+ "tokio-compat-02",
  "types",
  "web3",
 ]
@@ -2040,7 +1989,7 @@ dependencies = [
  "lighthouse_metrics",
  "lighthouse_version",
  "lru",
- "parking_lot 0.11.1",
+ "parking_lot",
  "rand 0.7.3",
  "regex",
  "serde",
@@ -2049,7 +1998,7 @@ dependencies = [
  "slog",
  "slog-async",
  "slog-term",
- "smallvec 1.5.0",
+ "smallvec",
  "snap",
  "task_executor",
  "tempdir",
@@ -2082,7 +2031,7 @@ version = "0.1.2"
 dependencies = [
  "eth2_ssz_derive",
  "ethereum-types",
- "smallvec 1.5.0",
+ "smallvec",
 ]
 
 [[package]]
@@ -2334,7 +2283,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ece68d15c92e84fa4f19d3780f1294e5ca82a78a6d515f1efaabcc144688be00"
 dependencies = [
  "matches",
- "percent-encoding 2.1.0",
+ "percent-encoding",
 ]
 
 [[package]]
@@ -2359,7 +2308,7 @@ version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2e9763c69ebaae630ba35f74888db465e49e259ba1bc0eda7d06f4a067615d82"
 dependencies = [
- "bitflags 1.2.1",
+ "bitflags",
  "fuchsia-zircon-sys",
 ]
 
@@ -2412,16 +2361,6 @@ version = "0.3.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "847ce131b72ffb13b6109a221da9ad97a64cbe48feb1028356b836b47b8f1748"
 
-[[package]]
-name = "futures-cpupool"
-version = "0.1.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab90cde24b3319636588d0c35fe03b1333857621051837ed769faefb4c2162e4"
-dependencies = [
- "futures 0.1.30",
- "num_cpus",
-]
-
 [[package]]
 name = "futures-executor"
 version = "0.3.8"
@@ -2494,7 +2433,6 @@ version = "0.3.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d304cff4a7b99cfb7986f7d43fbe93d175e72e704a8860787cc95e9ffd85cbd2"
 dependencies = [
- "futures 0.1.30",
  "futures-channel",
  "futures-core",
  "futures-io",
@@ -2506,7 +2444,7 @@ dependencies = [
  "pin-utils",
  "proc-macro-hack",
  "proc-macro-nested",
- "slab 0.4.2",
+ "slab",
 ]
 
 [[package]]
@@ -2529,7 +2467,7 @@ checksum = "8cdc09201b2e8ca1b19290cf7e65de2246b8e91fb6874279722189c4de7b94dc"
 dependencies = [
  "cc",
  "libc",
- "log 0.4.11",
+ "log",
  "rustc_version",
  "winapi 0.3.9",
 ]
@@ -2550,7 +2488,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "501466ecc8a30d1d3b7fc9229b122b2ce8ed6e9d9223f1138d4babb253e51817"
 dependencies = [
  "typenum",
- "version_check 0.9.2",
+ "version_check",
 ]
 
 [[package]]
@@ -2566,7 +2504,7 @@ dependencies = [
  "futures 0.3.8",
  "int_to_bytes",
  "merkle_proof",
- "parking_lot 0.11.1",
+ "parking_lot",
  "rayon",
  "serde",
  "serde_derive",
@@ -2656,24 +2594,6 @@ dependencies = [
  "subtle 2.3.0",
 ]
 
-[[package]]
-name = "h2"
-version = "0.1.26"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a5b34c246847f938a410a03c5458c7fee2274436675e76d8b903c08efc29c462"
-dependencies = [
- "byteorder",
- "bytes 0.4.12",
- "fnv",
- "futures 0.1.30",
- "http 0.1.21",
- "indexmap",
- "log 0.4.11",
- "slab 0.4.2",
- "string",
- "tokio-io",
-]
-
 [[package]]
 name = "h2"
 version = "0.2.7"
@@ -2687,7 +2607,7 @@ dependencies = [
  "futures-util",
  "http 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "indexmap",
- "slab 0.4.2",
+ "slab",
  "tokio 0.2.23",
  "tokio-util 0.3.1",
  "tracing",
@@ -2706,7 +2626,7 @@ dependencies = [
  "futures-util",
  "http 0.2.1 (git+https://github.com/agemanning/http?branch=lighthouse)",
  "indexmap",
- "slab 0.4.2",
+ "slab",
  "tokio 0.3.5",
  "tokio-util 0.5.1",
  "tracing",
@@ -2753,11 +2673,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ed18eb2459bf1a09ad2d6b1547840c3e5e62882fa09b9a6a20b1de8e3228848f"
 dependencies = [
  "base64 0.12.3",
- "bitflags 1.2.1",
+ "bitflags",
  "bytes 0.5.6",
  "headers-core 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "http 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "mime 0.3.16",
+ "mime",
  "sha-1 0.8.2",
  "time 0.1.44",
 ]
@@ -2768,11 +2688,11 @@ version = "0.3.2"
 source = "git+https://github.com/blacktemplar/headers?branch=lighthouse#8bffbd8aa2e170745a81e62fc0d7e98c0a23a69a"
 dependencies = [
  "base64 0.13.0",
- "bitflags 1.2.1",
+ "bitflags",
  "bytes 0.6.0",
  "headers-core 0.2.0 (git+https://github.com/blacktemplar/headers?branch=lighthouse)",
  "http 0.2.1 (git+https://github.com/agemanning/http?branch=lighthouse)",
- "mime 0.3.16",
+ "mime",
  "sha-1 0.8.2",
  "time 0.1.44",
 ]
@@ -2885,17 +2805,6 @@ dependencies = [
  "hmac 0.7.1",
 ]
 
-[[package]]
-name = "http"
-version = "0.1.21"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d6ccf5ede3a895d8856620237b2f02972c1bbc78d2965ad7fe8838d4a0ed41f0"
-dependencies = [
- "bytes 0.4.12",
- "fnv",
- "itoa",
-]
-
 [[package]]
 name = "http"
 version = "0.2.1"
@@ -2917,18 +2826,6 @@ dependencies = [
  "itoa",
 ]
 
-[[package]]
-name = "http-body"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6741c859c1b2463a423a1dbce98d418e6c3c3fc720fb0d45528657320920292d"
-dependencies = [
- "bytes 0.4.12",
- "futures 0.1.30",
- "http 0.1.21",
- "tokio-buf",
-]
-
 [[package]]
 name = "http-body"
 version = "0.3.1"
@@ -2967,7 +2864,7 @@ dependencies = [
  "lighthouse_metrics",
  "lighthouse_version",
  "network",
- "parking_lot 0.11.1",
+ "parking_lot",
  "serde",
  "slog",
  "slot_clock",
@@ -3034,7 +2931,7 @@ dependencies = [
  "isahc",
  "lazy_static",
  "levenshtein",
- "log 0.4.11",
+ "log",
  "puddle",
  "qstring",
  "regex",
@@ -3050,55 +2947,6 @@ version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3c1ad908cc71012b7bea4d0c53ba96a8cba9962f048fa68d143376143d863b7a"
 
-[[package]]
-name = "hyper"
-version = "0.10.16"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0a0652d9a2609a968c14be1a9ea00bf4b1d64e2e1f53a1b51b6fff3a6e829273"
-dependencies = [
- "base64 0.9.3",
- "httparse",
- "language-tags",
- "log 0.3.9",
- "mime 0.2.6",
- "num_cpus",
- "time 0.1.44",
- "traitobject",
- "typeable",
- "unicase 1.4.2",
- "url 1.7.2",
-]
-
-[[package]]
-name = "hyper"
-version = "0.12.35"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9dbe6ed1438e1f8ad955a4701e9a944938e9519f6888d12d8558b645e247d5f6"
-dependencies = [
- "bytes 0.4.12",
- "futures 0.1.30",
- "futures-cpupool",
- "h2 0.1.26",
- "http 0.1.21",
- "http-body 0.1.0",
- "httparse",
- "iovec",
- "itoa",
- "log 0.4.11",
- "net2",
- "rustc_version",
- "time 0.1.44",
- "tokio 0.1.22",
- "tokio-buf",
- "tokio-executor",
- "tokio-io",
- "tokio-reactor",
- "tokio-tcp",
- "tokio-threadpool",
- "tokio-timer 0.2.13",
- "want 0.2.0",
-]
-
 [[package]]
 name = "hyper"
 version = "0.13.9"
@@ -3120,7 +2968,7 @@ dependencies = [
  "tokio 0.2.23",
  "tower-service",
  "tracing",
- "want 0.3.0",
+ "want",
 ]
 
 [[package]]
@@ -3143,20 +2991,7 @@ dependencies = [
  "tokio 0.3.5",
  "tower-service",
  "tracing",
- "want 0.3.0",
-]
-
-[[package]]
-name = "hyper-tls"
-version = "0.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3a800d6aa50af4b5850b2b0f659625ce9504df908e9733b635720483be26174f"
-dependencies = [
- "bytes 0.4.12",
- "futures 0.1.30",
- "hyper 0.12.35",
- "native-tls",
- "tokio-io",
+ "want",
 ]
 
 [[package]]
@@ -3169,18 +3004,7 @@ dependencies = [
  "hyper 0.13.9",
  "native-tls",
  "tokio 0.2.23",
- "tokio-tls 0.3.1",
-]
-
-[[package]]
-name = "idna"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38f09e0f0b1fb55fdee1f17470ad800da77af5186a1a76c026b679358b7e844e"
-dependencies = [
- "matches",
- "unicode-bidi",
- "unicode-normalization",
+ "tokio-tls",
 ]
 
 [[package]]
@@ -3222,9 +3046,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2fd32c880165b2f776af0b38d206d1cabaebcf46c166ac6ae004a5d45f7d48ef"
 dependencies = [
  "attohttpc",
- "log 0.4.11",
+ "log",
  "rand 0.7.3",
- "url 2.2.0",
+ "url",
  "xmltree",
 ]
 
@@ -3330,14 +3154,14 @@ dependencies = [
  "flume",
  "futures-lite",
  "http 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.11",
- "mime 0.3.16",
+ "log",
+ "mime",
  "once_cell",
- "slab 0.4.2",
+ "slab",
  "sluice",
  "tracing",
  "tracing-futures",
- "url 2.2.0",
+ "url",
  "waker-fn",
 ]
 
@@ -3381,7 +3205,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a0747307121ffb9703afd93afbd0fb4f854c38fb873f2c8b90e0e902f27c7b62"
 dependencies = [
  "futures 0.1.30",
- "log 0.4.11",
+ "log",
  "serde",
  "serde_derive",
  "serde_json",
@@ -3421,7 +3245,7 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0de8b303297635ad57c9f5059fd9cee7a47f8e8daa09df0fcd07dd39fb22977f"
 dependencies = [
- "log 0.4.11",
+ "log",
 ]
 
 [[package]]
@@ -3455,12 +3279,6 @@ version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6771161eff561647fad8bb7e745e002c304864fb8f436b52b30acda51fca4408"
 
-[[package]]
-name = "language-tags"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a91d884b6667cd606bb5a69aa0c99ba811a115fc68915e7056ec08a46e93199a"
-
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -3489,7 +3307,7 @@ dependencies = [
  "genesis",
  "hex",
  "lighthouse_version",
- "log 0.4.11",
+ "log",
  "rand 0.7.3",
  "regex",
  "serde",
@@ -3501,7 +3319,6 @@ dependencies = [
  "tree_hash",
  "types",
  "validator_dir",
- "web3",
 ]
 
 [[package]]
@@ -3593,9 +3410,9 @@ dependencies = [
  "libp2p-websocket",
  "libp2p-yamux",
  "parity-multiaddr 0.9.6 (git+https://github.com/sigp/rust-libp2p?rev=e3caf9e0e5e78c9d51c6dccf0d6277cef553bb25)",
- "parking_lot 0.11.1",
+ "parking_lot",
  "pin-project 1.0.2",
- "smallvec 1.5.0",
+ "smallvec",
  "wasm-timer",
 ]
 
@@ -3614,11 +3431,11 @@ dependencies = [
  "futures-timer",
  "lazy_static",
  "libsecp256k1",
- "log 0.4.11",
+ "log",
  "multihash 0.11.4",
  "multistream-select 0.8.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-multiaddr 0.9.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.11.1",
+ "parking_lot",
  "pin-project 1.0.2",
  "prost",
  "prost-build",
@@ -3626,7 +3443,7 @@ dependencies = [
  "ring",
  "rw-stream-sink",
  "sha2 0.9.2",
- "smallvec 1.5.0",
+ "smallvec",
  "thiserror",
  "unsigned-varint 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "void",
@@ -3648,11 +3465,11 @@ dependencies = [
  "futures-timer",
  "lazy_static",
  "libsecp256k1",
- "log 0.4.11",
+ "log",
  "multihash 0.13.2",
  "multistream-select 0.8.5 (git+https://github.com/sigp/rust-libp2p?rev=e3caf9e0e5e78c9d51c6dccf0d6277cef553bb25)",
  "parity-multiaddr 0.9.6 (git+https://github.com/sigp/rust-libp2p?rev=e3caf9e0e5e78c9d51c6dccf0d6277cef553bb25)",
- "parking_lot 0.11.1",
+ "parking_lot",
  "pin-project 1.0.2",
  "prost",
  "prost-build",
@@ -3660,7 +3477,7 @@ dependencies = [
  "ring",
  "rw-stream-sink",
  "sha2 0.9.2",
- "smallvec 1.5.0",
+ "smallvec",
  "thiserror",
  "unsigned-varint 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "void",
@@ -3683,7 +3500,7 @@ source = "git+https://github.com/sigp/rust-libp2p?rev=e3caf9e0e5e78c9d51c6dccf0d
 dependencies = [
  "futures 0.3.8",
  "libp2p-core 0.25.0",
- "log 0.4.11",
+ "log",
 ]
 
 [[package]]
@@ -3700,12 +3517,12 @@ dependencies = [
  "hex_fmt",
  "libp2p-core 0.25.0",
  "libp2p-swarm",
- "log 0.4.11",
+ "log",
  "prost",
  "prost-build",
  "rand 0.7.3",
  "sha2 0.9.2",
- "smallvec 1.5.0",
+ "smallvec",
  "unsigned-varint 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasm-timer",
 ]
@@ -3718,10 +3535,10 @@ dependencies = [
  "futures 0.3.8",
  "libp2p-core 0.25.0",
  "libp2p-swarm",
- "log 0.4.11",
+ "log",
  "prost",
  "prost-build",
- "smallvec 1.5.0",
+ "smallvec",
  "wasm-timer",
 ]
 
@@ -3734,11 +3551,11 @@ dependencies = [
  "futures 0.3.8",
  "futures_codec",
  "libp2p-core 0.25.0",
- "log 0.4.11",
+ "log",
  "nohash-hasher",
- "parking_lot 0.11.1",
+ "parking_lot",
  "rand 0.7.3",
- "smallvec 1.5.0",
+ "smallvec",
  "unsigned-varint 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -3752,7 +3569,7 @@ dependencies = [
  "futures 0.3.8",
  "lazy_static",
  "libp2p-core 0.25.0",
- "log 0.4.11",
+ "log",
  "prost",
  "prost-build",
  "rand 0.7.3",
@@ -3771,9 +3588,9 @@ dependencies = [
  "either",
  "futures 0.3.8",
  "libp2p-core 0.25.0",
- "log 0.4.11",
+ "log",
  "rand 0.7.3",
- "smallvec 1.5.0",
+ "smallvec",
  "void",
  "wasm-timer",
 ]
@@ -3788,7 +3605,7 @@ dependencies = [
  "if-addrs",
  "ipnet",
  "libp2p-core 0.25.0",
- "log 0.4.11",
+ "log",
  "socket2",
  "tokio 0.3.5",
 ]
@@ -3802,12 +3619,12 @@ dependencies = [
  "either",
  "futures 0.3.8",
  "libp2p-core 0.25.0",
- "log 0.4.11",
+ "log",
  "quicksink",
  "rustls",
  "rw-stream-sink",
  "soketto",
- "url 2.2.0",
+ "url",
  "webpki",
  "webpki-roots",
 ]
@@ -3819,7 +3636,7 @@ source = "git+https://github.com/sigp/rust-libp2p?rev=e3caf9e0e5e78c9d51c6dccf0d
 dependencies = [
  "futures 0.3.8",
  "libp2p-core 0.25.0",
- "parking_lot 0.11.1",
+ "parking_lot",
  "thiserror",
  "yamux",
 ]
@@ -3923,7 +3740,7 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5b0908efb5d6496aa977d96f91413da2635a902e5e31dbef0bfb88986c248539"
 dependencies = [
- "bitflags 1.2.1",
+ "bitflags",
  "libc",
  "lmdb-sys",
 ]
@@ -3939,15 +3756,6 @@ dependencies = [
  "pkg-config",
 ]
 
-[[package]]
-name = "lock_api"
-version = "0.3.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4da24a77a3d8a6d4862d95f72e6fdb9c09a643ecdb402d754004a557f2bec75"
-dependencies = [
- "scopeguard",
-]
-
 [[package]]
 name = "lock_api"
 version = "0.4.2"
@@ -3965,15 +3773,6 @@ dependencies = [
  "tempdir",
 ]
 
-[[package]]
-name = "log"
-version = "0.3.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e19e8d5c34a3e0e2223db8e060f9e8264aeeb5c5fc64a4ee9965c062211c024b"
-dependencies = [
- "log 0.4.11",
-]
-
 [[package]]
 name = "log"
 version = "0.4.11"
@@ -4001,7 +3800,7 @@ checksum = "a0e8460f2f2121162705187214720353c517b97bdfb3494c0b1e33d83ebe4bed"
 dependencies = [
  "cfg-if 0.1.10",
  "generator",
- "scoped-tls 1.0.0",
+ "scoped-tls",
  "serde",
  "serde_json",
 ]
@@ -4070,15 +3869,6 @@ version = "2.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
 
-[[package]]
-name = "memoffset"
-version = "0.5.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "043175f069eda7b85febe4a74abbaeff828d9f8b448515d3151a14a3542811aa"
-dependencies = [
- "autocfg 1.0.1",
-]
-
 [[package]]
 name = "memoffset"
 version = "0.6.1"
@@ -4112,15 +3902,6 @@ dependencies = [
  "zeroize",
 ]
 
-[[package]]
-name = "mime"
-version = "0.2.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba626b8a6de5da682e1caa06bdb42a335aee5a84db8e5046a3e8ab17ba0a3ae0"
-dependencies = [
- "log 0.3.9",
-]
-
 [[package]]
 name = "mime"
 version = "0.3.16"
@@ -4133,8 +3914,8 @@ version = "2.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2684d4c2e97d99848d30b324b00c8fcc7e5c897b7cbb5819b09e7c90e8baf212"
 dependencies = [
- "mime 0.3.16",
- "unicase 2.6.0",
+ "mime",
+ "unicase",
 ]
 
 [[package]]
@@ -4168,10 +3949,10 @@ dependencies = [
  "iovec",
  "kernel32-sys",
  "libc",
- "log 0.4.11",
+ "log",
  "miow 0.2.2",
  "net2",
- "slab 0.4.2",
+ "slab",
  "winapi 0.2.8",
 ]
 
@@ -4182,23 +3963,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f33bc887064ef1fd66020c9adfc45bb9f33d75a42096c81e7c56c65b75dd1a8b"
 dependencies = [
  "libc",
- "log 0.4.11",
+ "log",
  "miow 0.3.6",
  "ntapi",
  "winapi 0.3.9",
 ]
 
-[[package]]
-name = "mio-uds"
-version = "0.6.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "afcb699eb26d4332647cc848492bbc15eafb26f08d0304550d5aa1f612e066f0"
-dependencies = [
- "iovec",
- "libc",
- "mio 0.6.23",
-]
-
 [[package]]
 name = "miow"
 version = "0.2.2"
@@ -4277,8 +4047,8 @@ checksum = "8209c33c951f07387a8497841122fc6f712165e3f9bda3e6be4645b58188f676"
 dependencies = [
  "buf_redux",
  "httparse",
- "log 0.4.11",
- "mime 0.3.16",
+ "log",
+ "mime",
  "mime_guess",
  "quick-error",
  "rand 0.6.5",
@@ -4295,9 +4065,9 @@ checksum = "93faf2e41f9ee62fb01680ed48f3cc26652352327aa2e59869070358f6b7dd75"
 dependencies = [
  "bytes 0.5.6",
  "futures 0.3.8",
- "log 0.4.11",
+ "log",
  "pin-project 1.0.2",
- "smallvec 1.5.0",
+ "smallvec",
  "unsigned-varint 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -4308,9 +4078,9 @@ source = "git+https://github.com/sigp/rust-libp2p?rev=e3caf9e0e5e78c9d51c6dccf0d
 dependencies = [
  "bytes 0.5.6",
  "futures 0.3.8",
- "log 0.4.11",
+ "log",
  "pin-project 1.0.2",
- "smallvec 1.5.0",
+ "smallvec",
  "unsigned-varint 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -4322,7 +4092,7 @@ checksum = "6fcc7939b5edc4e4f86b1b4a04bb1498afaaf871b1a6691838ed06fcb48d3a3f"
 dependencies = [
  "lazy_static",
  "libc",
- "log 0.4.11",
+ "log",
  "openssl",
  "openssl-probe",
  "openssl-sys",
@@ -4377,7 +4147,7 @@ dependencies = [
  "lru_cache",
  "matches",
  "num_cpus",
- "parking_lot 0.11.1",
+ "parking_lot",
  "rand 0.7.3",
  "rlp",
  "slog",
@@ -4385,7 +4155,7 @@ dependencies = [
  "slog-term",
  "sloggers",
  "slot_clock",
- "smallvec 1.5.0",
+ "smallvec",
  "state_processing",
  "store",
  "task_executor",
@@ -4407,7 +4177,7 @@ version = "0.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "50e4785f2c3b7589a0d0c1dd60285e1188adac4006e8abd6dd578e1567027363"
 dependencies = [
- "bitflags 1.2.1",
+ "bitflags",
  "cc",
  "cfg-if 0.1.10",
  "libc",
@@ -4420,7 +4190,7 @@ version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "83450fe6a6142ddd95fb064b746083fc4ef1705fe81f64a64e1d4b39f54a1055"
 dependencies = [
- "bitflags 1.2.1",
+ "bitflags",
  "cc",
  "cfg-if 0.1.10",
  "libc",
@@ -4440,7 +4210,7 @@ dependencies = [
  "serde",
  "tempdir",
  "types",
- "url 2.2.0",
+ "url",
  "validator_client",
  "validator_dir",
 ]
@@ -4492,7 +4262,7 @@ dependencies = [
  "num-traits",
  "rand 0.7.3",
  "serde",
- "smallvec 1.5.0",
+ "smallvec",
  "zeroize",
 ]
 
@@ -4548,7 +4318,7 @@ version = "1.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "13bd41f508810a131401606d54ac32a467c97172d74ba7662562ebba5ad07fa0"
 dependencies = [
- "parking_lot 0.11.1",
+ "parking_lot",
 ]
 
 [[package]]
@@ -4575,7 +4345,7 @@ version = "0.10.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8d575eff3665419f9b83678ff2815858ad9d11567e082f5ac1814baba4e2bcb4"
 dependencies = [
- "bitflags 1.2.1",
+ "bitflags",
  "cfg-if 0.1.10",
  "foreign-types",
  "lazy_static",
@@ -4619,7 +4389,7 @@ dependencies = [
  "eth2_ssz",
  "eth2_ssz_derive",
  "int_to_bytes",
- "parking_lot 0.11.1",
+ "parking_lot",
  "rand 0.7.3",
  "serde",
  "serde_derive",
@@ -4639,11 +4409,11 @@ dependencies = [
  "byteorder",
  "data-encoding",
  "multihash 0.11.4",
- "percent-encoding 2.1.0",
+ "percent-encoding",
  "serde",
  "static_assertions",
  "unsigned-varint 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 2.2.0",
+ "url",
 ]
 
 [[package]]
@@ -4656,11 +4426,11 @@ dependencies = [
  "byteorder",
  "data-encoding",
  "multihash 0.13.2",
- "percent-encoding 2.1.0",
+ "percent-encoding",
  "serde",
  "static_assertions",
  "unsigned-varint 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 2.2.0",
+ "url",
 ]
 
 [[package]]
@@ -4681,27 +4451,6 @@ version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "427c3892f9e783d91cc128285287e70a59e206ca452770ece88a76f7a3eddd72"
 
-[[package]]
-name = "parking_lot"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f842b1982eb6c2fe34036a4fbfb06dd185a3f5c8edfaacdf7d1ea10b07de6252"
-dependencies = [
- "lock_api 0.3.4",
- "parking_lot_core 0.6.2",
- "rustc_version",
-]
-
-[[package]]
-name = "parking_lot"
-version = "0.10.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d3a704eb390aafdc107b0e392f56a82b668e3a71366993b5340f5833fd62505e"
-dependencies = [
- "lock_api 0.3.4",
- "parking_lot_core 0.7.2",
-]
-
 [[package]]
 name = "parking_lot"
 version = "0.11.1"
@@ -4709,37 +4458,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6d7744ac029df22dca6284efe4e898991d28e3085c706c972bcd7da4a27a15eb"
 dependencies = [
  "instant",
- "lock_api 0.4.2",
- "parking_lot_core 0.8.0",
-]
-
-[[package]]
-name = "parking_lot_core"
-version = "0.6.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b876b1b9e7ac6e1a74a6da34d25c42e17e8862aa409cbbbdcfc8d86c6f3bc62b"
-dependencies = [
- "cfg-if 0.1.10",
- "cloudabi 0.0.3",
- "libc",
- "redox_syscall",
- "rustc_version",
- "smallvec 0.6.13",
- "winapi 0.3.9",
-]
-
-[[package]]
-name = "parking_lot_core"
-version = "0.7.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d58c7c768d4ba344e3e8d72518ac13e259d7c7ade24167003b8488e10b6740a3"
-dependencies = [
- "cfg-if 0.1.10",
- "cloudabi 0.0.3",
- "libc",
- "redox_syscall",
- "smallvec 1.5.0",
- "winapi 0.3.9",
+ "lock_api",
+ "parking_lot_core",
 ]
 
 [[package]]
@@ -4753,7 +4473,7 @@ dependencies = [
  "instant",
  "libc",
  "redox_syscall",
- "smallvec 1.5.0",
+ "smallvec",
  "winapi 0.3.9",
 ]
 
@@ -4775,12 +4495,6 @@ dependencies = [
  "crypto-mac 0.10.0",
 ]
 
-[[package]]
-name = "percent-encoding"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "31010dd2e1ac33d5b46a5b413495239882813e0369f8ed8a5e266f173602f831"
-
 [[package]]
 name = "percent-encoding"
 version = "2.1.0"
@@ -4896,7 +4610,7 @@ checksum = "a2a7bc6b2a29e632e45451c941832803a18cce6781db04de8a04696cdca8bde4"
 dependencies = [
  "cfg-if 0.1.10",
  "libc",
- "log 0.4.11",
+ "log",
  "wepoll-sys",
  "winapi 0.3.9",
 ]
@@ -4964,7 +4678,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "syn",
- "version_check 0.9.2",
+ "version_check",
 ]
 
 [[package]]
@@ -4975,7 +4689,7 @@ checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
 dependencies = [
  "proc-macro2",
  "quote",
- "version_check 0.9.2",
+ "version_check",
 ]
 
 [[package]]
@@ -5020,7 +4734,7 @@ dependencies = [
  "cfg-if 1.0.0",
  "fnv",
  "lazy_static",
- "parking_lot 0.11.1",
+ "parking_lot",
  "protobuf",
  "regex",
  "thiserror",
@@ -5045,7 +4759,7 @@ dependencies = [
  "bytes 0.5.6",
  "heck",
  "itertools 0.8.2",
- "log 0.4.11",
+ "log",
  "multimap",
  "petgraph",
  "prost",
@@ -5129,7 +4843,7 @@ version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d464fae65fff2680baf48019211ce37aaec0c78e9264c84a3e484717f965104e"
 dependencies = [
- "percent-encoding 2.1.0",
+ "percent-encoding",
 ]
 
 [[package]]
@@ -5145,7 +4859,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a44883e74aa97ad63db83c4bf8ca490f02b2fc02f92575e720c8551e843c945f"
 dependencies = [
  "env_logger 0.7.1",
- "log 0.4.11",
+ "log",
  "rand 0.7.3",
  "rand_core 0.5.1",
 ]
@@ -5187,8 +4901,8 @@ version = "0.8.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "545c5bc2b880973c9c10e4067418407a0ccaa3091781d1671d46eb35107cb26f"
 dependencies = [
- "log 0.4.11",
- "parking_lot 0.11.1",
+ "log",
+ "parking_lot",
  "scheduled-thread-pool",
 ]
 
@@ -5233,19 +4947,6 @@ dependencies = [
  "winapi 0.3.9",
 ]
 
-[[package]]
-name = "rand"
-version = "0.5.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c618c47cd3ebd209790115ab837de41425723956ad3ce2e6a7f09890947cacb9"
-dependencies = [
- "cloudabi 0.0.3",
- "fuchsia-cprng",
- "libc",
- "rand_core 0.3.1",
- "winapi 0.3.9",
-]
-
 [[package]]
 name = "rand"
 version = "0.6.5"
@@ -5409,7 +5110,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8b0d8e0819fadc20c74ea8373106ead0600e3a67ef1fe8da56e39b9ae7275674"
 dependencies = [
  "autocfg 1.0.1",
- "crossbeam-deque 0.8.0",
+ "crossbeam-deque",
  "either",
  "rayon-core",
 ]
@@ -5421,7 +5122,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9ab346ac5921dc62ffa9f89b7a773907511cdfa5490c572ae9be1be33e8afa4a"
 dependencies = [
  "crossbeam-channel 0.5.0",
- "crossbeam-deque 0.8.0",
+ "crossbeam-deque",
  "crossbeam-utils 0.8.1",
  "lazy_static",
  "num_cpus",
@@ -5584,22 +5285,22 @@ dependencies = [
  "http 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "http-body 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.13.9",
- "hyper-tls 0.4.3",
+ "hyper-tls",
  "ipnet",
  "js-sys",
  "lazy_static",
- "log 0.4.11",
- "mime 0.3.16",
+ "log",
+ "mime",
  "mime_guess",
  "native-tls",
- "percent-encoding 2.1.0",
+ "percent-encoding",
  "pin-project-lite 0.2.0",
  "serde",
  "serde_json",
  "serde_urlencoded",
  "tokio 0.2.23",
- "tokio-tls 0.3.1",
- "url 2.2.0",
+ "tokio-tls",
+ "url",
  "wasm-bindgen",
  "wasm-bindgen-futures",
  "wasm-bindgen-test",
@@ -5653,13 +5354,13 @@ version = "0.24.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7e3d4791ab5517217f51216a84a688b53c1ebf7988736469c538d02f46ddba68"
 dependencies = [
- "bitflags 1.2.1",
+ "bitflags",
  "fallible-iterator",
  "fallible-streaming-iterator",
  "hashlink",
  "libsqlite3-sys",
  "memchr",
- "smallvec 1.5.0",
+ "smallvec",
 ]
 
 [[package]]
@@ -5708,7 +5409,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5d1126dcf58e93cee7d098dbda643b5f92ed724f1f6a63007c1116eed6700c81"
 dependencies = [
  "base64 0.12.3",
- "log 0.4.11",
+ "log",
  "ring",
  "sct",
  "webpki",
@@ -5775,15 +5476,9 @@ version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dc6f74fd1204073fa02d5d5d68bec8021be4c38690b61264b2fdb48083d0e7d7"
 dependencies = [
- "parking_lot 0.11.1",
+ "parking_lot",
 ]
 
-[[package]]
-name = "scoped-tls"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "332ffa32bf586782a3efaeb58f127980944bbc8c4d6913a86107ac2a5ab24b28"
-
 [[package]]
 name = "scoped-tls"
 version = "1.0.0"
@@ -5842,7 +5537,7 @@ version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c1759c2e3c8580017a484a7ac56d3abc5a6c1feadf88db2f3633f12ae4268c69"
 dependencies = [
- "bitflags 1.2.1",
+ "bitflags",
  "core-foundation",
  "core-foundation-sys",
  "libc",
@@ -6076,7 +5771,7 @@ dependencies = [
  "atty",
  "chrono",
  "colored",
- "log 0.4.11",
+ "log",
  "winapi 0.3.9",
 ]
 
@@ -6090,7 +5785,7 @@ dependencies = [
  "eth1_test_rig",
  "futures 0.3.8",
  "node_test_rig",
- "parking_lot 0.11.1",
+ "parking_lot",
  "rayon",
  "tokio 0.3.5",
  "tokio-compat-02",
@@ -6104,12 +5799,6 @@ version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fa8f3741c7372e75519bd9346068370c9cdaabcc1f9599cbcf2a2719352286b7"
 
-[[package]]
-name = "slab"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "17b4fcaed89ab08ef143da37bc52adbcc04d4a69014f4c1208d6b51f0c47bc23"
-
 [[package]]
 name = "slab"
 version = "0.4.2"
@@ -6131,7 +5820,7 @@ dependencies = [
  "lmdb",
  "lmdb-sys",
  "maplit",
- "parking_lot 0.11.1",
+ "parking_lot",
  "rand 0.7.3",
  "rayon",
  "safe_arith",
@@ -6152,7 +5841,7 @@ dependencies = [
 name = "slashing_protection"
 version = "0.1.0"
 dependencies = [
- "parking_lot 0.11.1",
+ "parking_lot",
  "r2d2",
  "r2d2_sqlite",
  "rayon",
@@ -6223,7 +5912,7 @@ version = "4.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8228ab7302adbf4fcb37e66f3cda78003feb521e7fd9e3847ec117a7784d0f5a"
 dependencies = [
- "log 0.4.11",
+ "log",
  "slog",
  "slog-scope",
 ]
@@ -6266,7 +5955,7 @@ version = "0.2.0"
 dependencies = [
  "lazy_static",
  "lighthouse_metrics",
- "parking_lot 0.11.1",
+ "parking_lot",
  "types",
 ]
 
@@ -6281,15 +5970,6 @@ dependencies = [
  "futures-io",
 ]
 
-[[package]]
-name = "smallvec"
-version = "0.6.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f7b0758c52e15a8b5e3691eae6cc559f08eee9406e548a4477ba4e67770a82b6"
-dependencies = [
- "maybe-uninit",
-]
-
 [[package]]
 name = "smallvec"
 version = "1.5.0"
@@ -6343,7 +6023,7 @@ dependencies = [
  "flate2",
  "futures 0.3.8",
  "httparse",
- "log 0.4.11",
+ "log",
  "rand 0.7.3",
  "sha-1 0.9.2",
 ]
@@ -6360,7 +6040,7 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7e529d73e80d64b5f2631f9035113347c578a1c9c7774b83a2b880788459ab36"
 dependencies = [
- "lock_api 0.4.2",
+ "lock_api",
 ]
 
 [[package]]
@@ -6369,7 +6049,7 @@ version = "0.2.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf906c8b8fc3f6ecd1046e01da1d8ddec83e48c8b08b84dcc02b585a6bedf5a8"
 dependencies = [
- "version_check 0.9.2",
+ "version_check",
 ]
 
 [[package]]
@@ -6387,7 +6067,7 @@ dependencies = [
  "integer-sqrt",
  "itertools 0.9.0",
  "lazy_static",
- "log 0.4.11",
+ "log",
  "merkle_proof",
  "rayon",
  "safe_arith",
@@ -6477,7 +6157,7 @@ dependencies = [
  "leveldb",
  "lighthouse_metrics",
  "lru",
- "parking_lot 0.11.1",
+ "parking_lot",
  "rayon",
  "serde",
  "serde_derive",
@@ -6499,15 +6179,6 @@ dependencies = [
  "generic-array 0.14.4",
 ]
 
-[[package]]
-name = "string"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d24114bfcceb867ca7f71a0d3fe45d45619ec47a6fbfa98cb14e14250bfa5d6d"
-dependencies = [
- "bytes 0.4.12",
-]
-
 [[package]]
 name = "string_cache"
 version = "0.8.1"
@@ -6739,7 +6410,7 @@ dependencies = [
  "standback",
  "stdweb",
  "time-macros",
- "version_check 0.9.2",
+ "version_check",
  "winapi 0.3.9",
 ]
 
@@ -6772,7 +6443,7 @@ version = "0.2.0"
 dependencies = [
  "beacon_chain",
  "futures 0.3.8",
- "parking_lot 0.11.1",
+ "parking_lot",
  "slog",
  "slot_clock",
  "task_executor",
@@ -6841,30 +6512,6 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
-[[package]]
-name = "tokio"
-version = "0.1.22"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a09c0b5bb588872ab2f09afa13ee6e9dac11e10a0ec9e8e3ba39a5a5d530af6"
-dependencies = [
- "bytes 0.4.12",
- "futures 0.1.30",
- "mio 0.6.23",
- "num_cpus",
- "tokio-codec",
- "tokio-current-thread",
- "tokio-executor",
- "tokio-fs",
- "tokio-io",
- "tokio-reactor",
- "tokio-sync",
- "tokio-tcp",
- "tokio-threadpool",
- "tokio-timer 0.2.13",
- "tokio-udp",
- "tokio-uds 0.2.7",
-]
-
 [[package]]
 name = "tokio"
 version = "0.2.23"
@@ -6880,7 +6527,7 @@ dependencies = [
  "mio 0.6.23",
  "num_cpus",
  "pin-project-lite 0.1.11",
- "slab 0.4.2",
+ "slab",
  "tokio-macros 0.2.6",
 ]
 
@@ -6898,36 +6545,14 @@ dependencies = [
  "memchr",
  "mio 0.7.6",
  "num_cpus",
- "parking_lot 0.11.1",
+ "parking_lot",
  "pin-project-lite 0.2.0",
  "signal-hook-registry",
- "slab 0.4.2",
+ "slab",
  "tokio-macros 0.3.1",
  "winapi 0.3.9",
 ]
 
-[[package]]
-name = "tokio-buf"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8fb220f46c53859a4b7ec083e41dec9778ff0b1851c0942b211edb89e0ccdc46"
-dependencies = [
- "bytes 0.4.12",
- "either",
- "futures 0.1.30",
-]
-
-[[package]]
-name = "tokio-codec"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "25b2998660ba0e70d18684de5d06b70b70a3a747469af9dea7618cc59e75976b"
-dependencies = [
- "bytes 0.4.12",
- "futures 0.1.30",
- "tokio-io",
-]
-
 [[package]]
 name = "tokio-compat-02"
 version = "0.1.2"
@@ -6941,67 +6566,6 @@ dependencies = [
  "tokio 0.3.5",
 ]
 
-[[package]]
-name = "tokio-core"
-version = "0.1.17"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aeeffbbb94209023feaef3c196a41cbcdafa06b4a6f893f68779bb5e53796f71"
-dependencies = [
- "bytes 0.4.12",
- "futures 0.1.30",
- "iovec",
- "log 0.4.11",
- "mio 0.6.23",
- "scoped-tls 0.1.2",
- "tokio 0.1.22",
- "tokio-executor",
- "tokio-io",
- "tokio-reactor",
- "tokio-timer 0.2.13",
-]
-
-[[package]]
-name = "tokio-current-thread"
-version = "0.1.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1de0e32a83f131e002238d7ccde18211c0a5397f60cbfffcb112868c2e0e20e"
-dependencies = [
- "futures 0.1.30",
- "tokio-executor",
-]
-
-[[package]]
-name = "tokio-executor"
-version = "0.1.10"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb2d1b8f4548dbf5e1f7818512e9c406860678f29c300cdf0ebac72d1a3a1671"
-dependencies = [
- "crossbeam-utils 0.7.2",
- "futures 0.1.30",
-]
-
-[[package]]
-name = "tokio-fs"
-version = "0.1.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "297a1206e0ca6302a0eed35b700d292b275256f596e2f3fea7729d5e629b6ff4"
-dependencies = [
- "futures 0.1.30",
- "tokio-io",
- "tokio-threadpool",
-]
-
-[[package]]
-name = "tokio-io"
-version = "0.1.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "57fc868aae093479e3131e3d165c93b1c7474109d13c90ec0dda2a1bbfff0674"
-dependencies = [
- "bytes 0.4.12",
- "futures 0.1.30",
- "log 0.4.11",
-]
-
 [[package]]
 name = "tokio-io-timeout"
 version = "0.5.0"
@@ -7033,99 +6597,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "tokio-reactor"
-version = "0.1.12"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09bc590ec4ba8ba87652da2068d150dcada2cfa2e07faae270a5e0409aa51351"
-dependencies = [
- "crossbeam-utils 0.7.2",
- "futures 0.1.30",
- "lazy_static",
- "log 0.4.11",
- "mio 0.6.23",
- "num_cpus",
- "parking_lot 0.9.0",
- "slab 0.4.2",
- "tokio-executor",
- "tokio-io",
- "tokio-sync",
-]
-
-[[package]]
-name = "tokio-sync"
-version = "0.1.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "edfe50152bc8164fcc456dab7891fa9bf8beaf01c5ee7e1dd43a397c3cf87dee"
-dependencies = [
- "fnv",
- "futures 0.1.30",
-]
-
-[[package]]
-name = "tokio-tcp"
-version = "0.1.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "98df18ed66e3b72e742f185882a9e201892407957e45fbff8da17ae7a7c51f72"
-dependencies = [
- "bytes 0.4.12",
- "futures 0.1.30",
- "iovec",
- "mio 0.6.23",
- "tokio-io",
- "tokio-reactor",
-]
-
-[[package]]
-name = "tokio-threadpool"
-version = "0.1.18"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "df720b6581784c118f0eb4310796b12b1d242a7eb95f716a8367855325c25f89"
-dependencies = [
- "crossbeam-deque 0.7.3",
- "crossbeam-queue",
- "crossbeam-utils 0.7.2",
- "futures 0.1.30",
- "lazy_static",
- "log 0.4.11",
- "num_cpus",
- "slab 0.4.2",
- "tokio-executor",
-]
-
-[[package]]
-name = "tokio-timer"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6131e780037787ff1b3f8aad9da83bca02438b72277850dd6ad0d455e0e20efc"
-dependencies = [
- "futures 0.1.30",
- "slab 0.3.0",
-]
-
-[[package]]
-name = "tokio-timer"
-version = "0.2.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "93044f2d313c95ff1cb7809ce9a7a05735b012288a888b62d4434fd58c94f296"
-dependencies = [
- "crossbeam-utils 0.7.2",
- "futures 0.1.30",
- "slab 0.4.2",
- "tokio-executor",
-]
-
-[[package]]
-name = "tokio-tls"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "354b8cd83825b3c20217a9dc174d6a0c67441a2fae5c41bcb1ea6679f6ae0f7c"
-dependencies = [
- "futures 0.1.30",
- "native-tls",
- "tokio-io",
-]
-
 [[package]]
 name = "tokio-tls"
 version = "0.3.1"
@@ -7143,62 +6614,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0381c1e6e08908317cee104781ca48afe03f37cc857792b85f01f9828fb55ba3"
 dependencies = [
  "futures-util",
- "log 0.4.11",
+ "log",
  "pin-project 1.0.2",
  "tokio 0.3.5",
  "tungstenite",
 ]
 
-[[package]]
-name = "tokio-udp"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2a0b10e610b39c38b031a2fcab08e4b82f16ece36504988dcbd81dbba650d82"
-dependencies = [
- "bytes 0.4.12",
- "futures 0.1.30",
- "log 0.4.11",
- "mio 0.6.23",
- "tokio-codec",
- "tokio-io",
- "tokio-reactor",
-]
-
-[[package]]
-name = "tokio-uds"
-version = "0.1.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "65ae5d255ce739e8537221ed2942e0445f4b3b813daebac1c0050ddaaa3587f9"
-dependencies = [
- "bytes 0.4.12",
- "futures 0.1.30",
- "iovec",
- "libc",
- "log 0.3.9",
- "mio 0.6.23",
- "mio-uds",
- "tokio-core",
- "tokio-io",
-]
-
-[[package]]
-name = "tokio-uds"
-version = "0.2.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab57a4ac4111c8c9dbcf70779f6fc8bc35ae4b2454809febac840ad19bd7e4e0"
-dependencies = [
- "bytes 0.4.12",
- "futures 0.1.30",
- "iovec",
- "libc",
- "log 0.4.11",
- "mio 0.6.23",
- "mio-uds",
- "tokio-codec",
- "tokio-io",
- "tokio-reactor",
-]
-
 [[package]]
 name = "tokio-util"
 version = "0.3.1"
@@ -7208,7 +6629,7 @@ dependencies = [
  "bytes 0.5.6",
  "futures-core",
  "futures-sink",
- "log 0.4.11",
+ "log",
  "pin-project-lite 0.1.11",
  "tokio 0.2.23",
 ]
@@ -7223,9 +6644,9 @@ dependencies = [
  "futures-core",
  "futures-io",
  "futures-sink",
- "log 0.4.11",
+ "log",
  "pin-project-lite 0.1.11",
- "slab 0.4.2",
+ "slab",
  "tokio 0.3.5",
 ]
 
@@ -7238,9 +6659,9 @@ dependencies = [
  "bytes 0.6.0",
  "futures-core",
  "futures-sink",
- "log 0.4.11",
+ "log",
  "pin-project-lite 0.2.0",
- "slab 0.4.2",
+ "slab",
  "tokio 0.3.5",
 ]
 
@@ -7266,7 +6687,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9f47026cdc4080c07e49b37087de021820269d996f581aac150ef9e5583eefe3"
 dependencies = [
  "cfg-if 1.0.0",
- "log 0.4.11",
+ "log",
  "pin-project-lite 0.2.0",
  "tracing-attributes",
  "tracing-core",
@@ -7309,7 +6730,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5e0f8c7178e13481ff6765bd169b33e8d554c5d2bbede5e32c356194be02b9b9"
 dependencies = [
  "lazy_static",
- "log 0.4.11",
+ "log",
  "tracing-core",
 ]
 
@@ -7337,7 +6758,7 @@ dependencies = [
  "serde",
  "serde_json",
  "sharded-slab",
- "smallvec 1.5.0",
+ "smallvec",
  "thread_local",
  "tracing",
  "tracing-core",
@@ -7364,12 +6785,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "traitobject"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "efd1f82c56340fdf16f2a953d7bda4f8fdffba13d93b00844c25572110b26079"
-
 [[package]]
 name = "tree_hash"
 version = "0.1.1"
@@ -7379,7 +6794,7 @@ dependencies = [
  "ethereum-types",
  "lazy_static",
  "rand 0.7.3",
- "smallvec 1.5.0",
+ "smallvec",
  "tree_hash_derive",
  "types",
 ]
@@ -7410,10 +6825,10 @@ dependencies = [
  "http 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "httparse",
  "input_buffer",
- "log 0.4.11",
+ "log",
  "rand 0.7.3",
  "sha-1 0.9.2",
- "url 2.2.0",
+ "url",
  "utf-8",
 ]
 
@@ -7426,12 +6841,6 @@ dependencies = [
  "memchr",
 ]
 
-[[package]]
-name = "typeable"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1410f6f91f21d1612654e7cc69193b0334f909dcf2c790c4826254fbb86f8887"
-
 [[package]]
 name = "typenum"
 version = "1.12.0"
@@ -7458,7 +6867,7 @@ dependencies = [
  "hex",
  "int_to_bytes",
  "lazy_static",
- "log 0.4.11",
+ "log",
  "merkle_proof",
  "rand 0.7.3",
  "rand_xorshift 0.2.0",
@@ -7498,22 +6907,13 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ccb97dac3243214f8d8507998906ca3e2e0b900bf9bf4870477f125b82e68f6e"
 
-[[package]]
-name = "unicase"
-version = "1.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7f4765f83163b74f957c797ad9253caf97f103fb064d3999aea9568d09fc8a33"
-dependencies = [
- "version_check 0.1.5",
-]
-
 [[package]]
 name = "unicase"
 version = "2.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "50f37be617794602aabbeee0be4f259dc1778fabe05e2d67ee8f79326d5cb4f6"
 dependencies = [
- "version_check 0.9.2",
+ "version_check",
 ]
 
 [[package]]
@@ -7587,17 +6987,6 @@ version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a156c684c91ea7d62626509bce3cb4e1d9ed5c4d978f7b4352658f96a4c26b4a"
 
-[[package]]
-name = "url"
-version = "1.7.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd4e7c0d531266369519a4aa4f399d748bd37043b00bde1e4ff1f60a120b355a"
-dependencies = [
- "idna 0.1.5",
- "matches",
- "percent-encoding 1.0.1",
-]
-
 [[package]]
 name = "url"
 version = "2.2.0"
@@ -7605,9 +6994,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5909f2b0817350449ed73e8bcd81c8c3c8d9a7a5d8acba4b27db277f1868976e"
 dependencies = [
  "form_urlencoded",
- "idna 0.2.0",
+ "idna",
  "matches",
- "percent-encoding 2.1.0",
+ "percent-encoding",
 ]
 
 [[package]]
@@ -7656,7 +7045,7 @@ dependencies = [
  "lighthouse_version",
  "lockfile",
  "logging",
- "parking_lot 0.11.1",
+ "parking_lot",
  "rand 0.7.3",
  "rayon",
  "ring",
@@ -7718,12 +7107,6 @@ version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f1bddf1187be692e79c5ffeab891132dfb0f236ed36a43c7ed39f1165ee20191"
 
-[[package]]
-name = "version_check"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "914b1a6776c4c929a602fafd8bc742e06365d4bcbe48c30f9cca5824f70dc9dd"
-
 [[package]]
 name = "version_check"
 version = "0.9.2"
@@ -7753,24 +7136,13 @@ dependencies = [
  "winapi-util",
 ]
 
-[[package]]
-name = "want"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b6395efa4784b027708f7451087e647ec73cc74f5d9bc2e418404248d679a230"
-dependencies = [
- "futures 0.1.30",
- "log 0.4.11",
- "try-lock",
-]
-
 [[package]]
 name = "want"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1ce8a968cb1cd110d136ff8b819a556d6fb6d919363c61534f6860c7eb172ba0"
 dependencies = [
- "log 0.4.11",
+ "log",
  "try-lock",
 ]
 
@@ -7784,13 +7156,13 @@ dependencies = [
  "headers 0.3.2 (git+https://github.com/blacktemplar/headers?branch=lighthouse)",
  "http 0.2.1 (git+https://github.com/agemanning/http?branch=lighthouse)",
  "hyper 0.14.0-dev",
- "log 0.4.11",
- "mime 0.3.16",
+ "log",
+ "mime",
  "mime_guess",
  "multipart",
- "percent-encoding 2.1.0",
+ "percent-encoding",
  "pin-project 1.0.2",
- "scoped-tls 1.0.0",
+ "scoped-tls",
  "serde",
  "serde_json",
  "serde_urlencoded",
@@ -7850,7 +7222,7 @@ checksum = "1114f89ab1f4106e5b55e688b828c0ab0ea593a1ea7c094b141b14cbaaec2d62"
 dependencies = [
  "bumpalo",
  "lazy_static",
- "log 0.4.11",
+ "log",
  "proc-macro2",
  "quote",
  "syn",
@@ -7906,7 +7278,7 @@ checksum = "0355fa0c1f9b792a09b6dcb6a8be24d51e71e6d74972f9eb4a44c4c004d24a25"
 dependencies = [
  "console_error_panic_hook",
  "js-sys",
- "scoped-tls 1.0.0",
+ "scoped-tls",
  "wasm-bindgen",
  "wasm-bindgen-futures",
  "wasm-bindgen-test-macro",
@@ -7930,7 +7302,7 @@ checksum = "be0ecb0db480561e9a7642b5d3e4187c128914e58aa84330b9493e3eb68c5e7f"
 dependencies = [
  "futures 0.3.8",
  "js-sys",
- "parking_lot 0.11.1",
+ "parking_lot",
  "pin-utils",
  "wasm-bindgen",
  "wasm-bindgen-futures",
@@ -7949,35 +7321,33 @@ dependencies = [
 
 [[package]]
 name = "web3"
-version = "0.11.0"
+version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a681e8d15deced7c510db88c59133d2eafa7b6298b6e91b545e2a3fed93b3fe"
+checksum = "50d03f64be59921dbc5791f05af61a87594bb454518fe4e97d827405422279a0"
 dependencies = [
  "arrayvec",
+ "async-native-tls",
+ "async-std",
  "base64 0.12.3",
  "derive_more",
  "ethabi",
  "ethereum-types",
- "futures 0.1.30",
- "hyper 0.12.35",
- "hyper-tls 0.3.2",
+ "futures 0.3.8",
+ "futures-timer",
+ "hyper 0.13.9",
+ "hyper-tls",
  "jsonrpc-core",
- "log 0.4.11",
+ "log",
  "native-tls",
- "parking_lot 0.10.2",
+ "parking_lot",
  "rlp",
  "rustc-hex",
  "secp256k1",
  "serde",
  "serde_json",
+ "soketto",
  "tiny-keccak 2.0.2",
- "tokio-core",
- "tokio-io",
- "tokio-timer 0.1.2",
- "tokio-uds 0.1.7",
- "url 2.2.0",
- "websocket",
- "zeroize",
+ "url",
 ]
 
 [[package]]
@@ -7999,28 +7369,6 @@ dependencies = [
  "webpki",
 ]
 
-[[package]]
-name = "websocket"
-version = "0.21.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c9faed2bff8af2ea6b9f8b917d3d00b467583f6781fe3def174a9e33c879703"
-dependencies = [
- "base64 0.9.3",
- "bitflags 0.9.1",
- "byteorder",
- "bytes 0.4.12",
- "futures 0.1.30",
- "hyper 0.10.16",
- "native-tls",
- "rand 0.5.6",
- "sha1",
- "tokio-core",
- "tokio-io",
- "tokio-tls 0.2.1",
- "unicase 1.4.2",
- "url 1.7.2",
-]
-
 [[package]]
 name = "wepoll-sys"
 version = "3.0.1"
@@ -8149,9 +7497,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9aeb8c4043cac71c3c299dff107171c220d179492350ea198e109a414981b83c"
 dependencies = [
  "futures 0.3.8",
- "log 0.4.11",
+ "log",
  "nohash-hasher",
- "parking_lot 0.11.1",
+ "parking_lot",
  "rand 0.7.3",
  "static_assertions",
 ]
diff --git a/Dockerfile b/Dockerfile
index 52cbdbca2..2d7bca06a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,6 @@ COPY . lighthouse
 ARG PORTABLE
 ENV PORTABLE $PORTABLE
 RUN cd lighthouse && make
-RUN cd lighthouse && make install-lcli
 
 FROM debian:buster-slim
 RUN apt-get update && apt-get install -y --no-install-recommends \
@@ -13,4 +12,3 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   && apt-get clean \
   && rm -rf /var/lib/apt/lists/*
 COPY --from=builder /usr/local/cargo/bin/lighthouse /usr/local/bin/lighthouse
-COPY --from=builder /usr/local/cargo/bin/lcli /usr/local/bin/lcli
diff --git a/account_manager/Cargo.toml b/account_manager/Cargo.toml
index e2ed1b95e..24eef147d 100644
--- a/account_manager/Cargo.toml
+++ b/account_manager/Cargo.toml
@@ -20,7 +20,7 @@ eth2_ssz_derive = "0.1.0"
 hex = "0.4.2"
 rayon = "1.4.1"
 eth2_network_config = { path = "../common/eth2_network_config" }
-futures = { version = "0.3.7", features = ["compat"] }
+futures = "0.3.7"
 clap_utils = { path = "../common/clap_utils" }
 directory = { path = "../common/directory" }
 eth2_wallet = { path = "../crypto/eth2_wallet" }
diff --git a/beacon_node/eth1/Cargo.toml b/beacon_node/eth1/Cargo.toml
index 8b3f76ac7..2244ccf5b 100644
--- a/beacon_node/eth1/Cargo.toml
+++ b/beacon_node/eth1/Cargo.toml
@@ -7,14 +7,14 @@ edition = "2018"
 [dev-dependencies]
 eth1_test_rig = { path = "../../testing/eth1_test_rig" }
 toml = "0.5.6"
-web3 = "0.11.0"
+web3 = "0.13.0"
 sloggers = "1.0.1"
 environment = { path = "../../lighthouse/environment" }
 tokio-compat-02 = "0.1"
 
 [dependencies]
 reqwest = { version = "0.10.8", features = ["native-tls-vendored"] }
-futures = { version = "0.3.7", features = ["compat"] }
+futures = "0.3.7"
 serde_json = "1.0.58"
 serde = { version = "1.0.116", features = ["derive"] }
 hex = "0.4.2"
diff --git a/beacon_node/eth1/tests/test.rs b/beacon_node/eth1/tests/test.rs
index ce542d482..db9b79f8e 100644
--- a/beacon_node/eth1/tests/test.rs
+++ b/beacon_node/eth1/tests/test.rs
@@ -4,7 +4,6 @@ use eth1::http::{get_deposit_count, get_deposit_logs_in_range, get_deposit_root,
 use eth1::{Config, Service};
 use eth1::{DepositCache, DEFAULT_CHAIN_ID, DEFAULT_NETWORK_ID};
 use eth1_test_rig::GanacheEth1Instance;
-use futures::compat::Future01CompatExt;
 use merkle_proof::verify_merkle_proof;
 use slog::Logger;
 use sloggers::{null::NullLoggerBuilder, Build};
diff --git a/beacon_node/genesis/tests/tests.rs b/beacon_node/genesis/tests/tests.rs
index f32366861..c5fd21928 100644
--- a/beacon_node/genesis/tests/tests.rs
+++ b/beacon_node/genesis/tests/tests.rs
@@ -6,7 +6,6 @@
 use environment::{Environment, EnvironmentBuilder};
 use eth1::{DEFAULT_CHAIN_ID, DEFAULT_NETWORK_ID};
 use eth1_test_rig::{DelayThenDeposit, GanacheEth1Instance};
-use futures::compat::Future01CompatExt;
 use genesis::{Eth1Config, Eth1GenesisService};
 use state_processing::is_valid_genesis_state;
 use std::time::Duration;
diff --git a/crypto/bls/Cargo.toml b/crypto/bls/Cargo.toml
index 422bb20c3..4006b714b 100644
--- a/crypto/bls/Cargo.toml
+++ b/crypto/bls/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2018"
 [dependencies]
 eth2_ssz = "0.1.2"
 tree_hash = "0.1.1"
-milagro_bls = { git = "https://github.com/sigp/milagro_bls", tag = "v1.4.0" }
+milagro_bls = { git = "https://github.com/sigp/milagro_bls", tag = "v1.4.0", optional = true }
 rand = "0.7.3"
 serde = "1.0.116"
 serde_derive = "1.0.116"
@@ -22,7 +22,7 @@ blst = "0.3.2"
 [features]
 default = ["supranational"]
 fake_crypto = []
-milagro = []
+milagro = ["milagro_bls"]
 supranational = []
 supranational-portable = ["supranational", "blst/portable"]
 supranational-force-adx = ["supranational", "blst/force-adx"]
diff --git a/crypto/bls/src/impls/mod.rs b/crypto/bls/src/impls/mod.rs
index 1bcac20a5..7a99798be 100644
--- a/crypto/bls/src/impls/mod.rs
+++ b/crypto/bls/src/impls/mod.rs
@@ -1,3 +1,4 @@
 pub mod blst;
 pub mod fake_crypto;
+#[cfg(feature = "milagro")]
 pub mod milagro;
diff --git a/crypto/bls/src/lib.rs b/crypto/bls/src/lib.rs
index 40a120fba..5aaa4f8c8 100644
--- a/crypto/bls/src/lib.rs
+++ b/crypto/bls/src/lib.rs
@@ -42,6 +42,7 @@ pub use get_withdrawal_credentials::get_withdrawal_credentials;
 pub use zeroize_hash::ZeroizeHash;
 
 use blst::BLST_ERROR as BlstError;
+#[cfg(feature = "milagro")]
 use milagro_bls::AmclError;
 
 pub type Hash256 = ethereum_types::H256;
@@ -49,6 +50,7 @@ pub type Hash256 = ethereum_types::H256;
 #[derive(Clone, Debug, PartialEq)]
 pub enum Error {
     /// An error was raised from the Milagro BLS library.
+    #[cfg(feature = "milagro")]
     MilagroError(AmclError),
     /// An error was raised from the Supranational BLST BLS library.
     BlstError(BlstError),
@@ -62,6 +64,7 @@ pub enum Error {
     InvalidZeroSecretKey,
 }
 
+#[cfg(feature = "milagro")]
 impl From<AmclError> for Error {
     fn from(e: AmclError) -> Error {
         Error::MilagroError(e)
@@ -122,6 +125,7 @@ macro_rules! define_mod {
     };
 }
 
+#[cfg(feature = "milagro")]
 define_mod!(milagro_implementations, crate::impls::milagro::types);
 define_mod!(blst_implementations, crate::impls::blst::types);
 #[cfg(feature = "fake_crypto")]
diff --git a/crypto/bls/tests/tests.rs b/crypto/bls/tests/tests.rs
index 872049414..3289f0ab2 100644
--- a/crypto/bls/tests/tests.rs
+++ b/crypto/bls/tests/tests.rs
@@ -498,7 +498,7 @@ mod blst {
     test_suite!(blst_implementations);
 }
 
-#[cfg(not(debug_assertions))]
+#[cfg(all(feature = "milagro", not(debug_assertions)))]
 mod milagro {
     test_suite!(milagro_implementations);
 }
diff --git a/lcli/Cargo.toml b/lcli/Cargo.toml
index 7b021ddb1..2e8a7de9b 100644
--- a/lcli/Cargo.toml
+++ b/lcli/Cargo.toml
@@ -20,9 +20,8 @@ types = { path = "../consensus/types" }
 state_processing = { path = "../consensus/state_processing" }
 eth2_ssz = "0.1.2"
 regex = "1.3.9"
-futures = { version = "0.3.7", features = ["compat"] }
+futures = "0.3.7"
 environment = { path = "../lighthouse/environment" }
-web3 = "0.11.0"
 eth2_network_config = { path = "../common/eth2_network_config" }
 dirs = "3.0.1"
 genesis = { path = "../beacon_node/genesis" }
diff --git a/lcli/src/deploy_deposit_contract.rs b/lcli/src/deploy_deposit_contract.rs
deleted file mode 100644
index 33a385fb0..000000000
--- a/lcli/src/deploy_deposit_contract.rs
+++ /dev/null
@@ -1,71 +0,0 @@
-use clap::ArgMatches;
-use deposit_contract::{
-    testnet::{ABI, BYTECODE},
-    CONTRACT_DEPLOY_GAS,
-};
-use environment::Environment;
-use futures::compat::Future01CompatExt;
-use std::path::PathBuf;
-use tokio_compat_02::FutureExt;
-use types::EthSpec;
-use web3::{
-    contract::{Contract, Options},
-    transports::Ipc,
-    types::{Address, U256},
-    Web3,
-};
-
-pub fn run<T: EthSpec>(env: Environment<T>, matches: &ArgMatches<'_>) -> Result<(), String> {
-    let eth1_ipc_path: PathBuf = clap_utils::parse_required(matches, "eth1-ipc")?;
-    let from_address: Address = clap_utils::parse_required(matches, "from-address")?;
-    let confirmations: usize = clap_utils::parse_required(matches, "confirmations")?;
-
-    let (_event_loop_handle, transport) =
-        Ipc::new(eth1_ipc_path).map_err(|e| format!("Unable to connect to eth1 IPC: {:?}", e))?;
-    let web3 = Web3::new(transport);
-
-    let bytecode = String::from_utf8(BYTECODE.to_vec()).map_err(|e| {
-        format!(
-            "Unable to parse deposit contract bytecode as utf-8: {:?}",
-            e
-        )
-    })?;
-
-    env.runtime().block_on(
-        async {
-            // It's unlikely that this will be the _actual_ deployment block, however it'll be close
-            // enough to serve our purposes.
-            //
-            // We only need the deposit block to put a lower bound on the block number we need to search
-            // for deposit logs.
-            let deploy_block = web3
-                .eth()
-                .block_number()
-                .compat()
-                .await
-                .map_err(|e| format!("Failed to get block number: {}", e))?;
-
-            let pending_contract = Contract::deploy(web3.eth(), &ABI)
-                .map_err(|e| format!("Unable to build contract deployer: {:?}", e))?
-                .confirmations(confirmations)
-                .options(Options {
-                    gas: Some(U256::from(CONTRACT_DEPLOY_GAS)),
-                    ..Options::default()
-                })
-                .execute(bytecode, (), from_address)
-                .map_err(|e| format!("Unable to execute deployment: {:?}", e))?;
-
-            let address = pending_contract
-                .compat()
-                .await
-                .map_err(|e| format!("Unable to await pending contract: {:?}", e))?
-                .address();
-
-            println!("deposit_contract_address: {:?}", address);
-            println!("deposit_contract_deploy_block: {}", deploy_block);
-
-            Ok(())
-        }
-        .compat(),
-    )
-}
diff --git a/lcli/src/main.rs b/lcli/src/main.rs
index 8381d8be5..f93857e19 100644
--- a/lcli/src/main.rs
+++ b/lcli/src/main.rs
@@ -2,14 +2,12 @@
 extern crate log;
 mod change_genesis_time;
 mod check_deposit_data;
-mod deploy_deposit_contract;
 mod eth1_genesis;
 mod generate_bootnode_enr;
 mod insecure_validators;
 mod interop_genesis;
 mod new_testnet;
 mod parse_hex;
-mod refund_deposit_contract;
 mod skip_slots;
 mod transition_blocks;
 
@@ -35,9 +33,7 @@ fn main() {
 
     let matches = App::new("Lighthouse CLI Tool")
         .version(lighthouse_version::VERSION)
-        .about(
-            "Performs various testing-related tasks, including defining testnets.",
-        )
+        .about("Performs various testing-related tasks, including defining testnets.")
         .arg(
             Arg::with_name("spec")
                 .short("s")
@@ -46,7 +42,7 @@ fn main() {
                 .takes_value(true)
                 .required(true)
                 .possible_values(&["minimal", "mainnet"])
-                .default_value("mainnet")
+                .default_value("mainnet"),
         )
         .arg(
             Arg::with_name("testnet-dir")
@@ -87,7 +83,9 @@ fn main() {
         )
         .subcommand(
             SubCommand::with_name("skip-slots")
-                .about("Performs a state transition from some state across some number of skip slots")
+                .about(
+                    "Performs a state transition from some state across some number of skip slots",
+                )
                 .arg(
                     Arg::with_name("pre-state")
                         .value_name("BEACON_STATE")
@@ -156,77 +154,9 @@ fn main() {
                         .help("SSZ encoded as 0x-prefixed hex"),
                 ),
         )
-        .subcommand(
-            SubCommand::with_name("deploy-deposit-contract")
-                .about(
-                    "Deploy a testing eth1 deposit contract.",
-                )
-                .arg(
-                    Arg::with_name("eth1-ipc")
-                        .long("eth1-ipc")
-                        .short("e")
-                        .value_name("ETH1_IPC_PATH")
-                        .help("Path to an Eth1 JSON-RPC IPC endpoint")
-                        .takes_value(true)
-                        .required(true)
-                )
-                .arg(
-                    Arg::with_name("from-address")
-                        .long("from-address")
-                        .short("f")
-                        .value_name("FROM_ETH1_ADDRESS")
-                        .help("The address that will submit the contract creation. Must be unlocked.")
-                        .takes_value(true)
-                        .required(true)
-                )
-                .arg(
-                    Arg::with_name("confirmations")
-                        .value_name("INTEGER")
-                        .long("confirmations")
-                        .takes_value(true)
-                        .default_value("3")
-                        .help("The number of block confirmations before declaring the contract deployed."),
-                )
-        )
-        .subcommand(
-            SubCommand::with_name("refund-deposit-contract")
-                .about(
-                    "Calls the steal() function on a testnet eth1 contract.",
-                )
-                .arg(
-                    Arg::with_name("eth1-ipc")
-                        .long("eth1-ipc")
-                        .short("e")
-                        .value_name("ETH1_IPC_PATH")
-                        .help("Path to an Eth1 JSON-RPC IPC endpoint")
-                        .takes_value(true)
-                        .required(true)
-                )
-                .arg(
-                    Arg::with_name("from-address")
-                        .long("from-address")
-                        .short("f")
-                        .value_name("FROM_ETH1_ADDRESS")
-                        .help("The address that will submit the contract creation. Must be unlocked.")
-                        .takes_value(true)
-                        .required(true)
-                )
-                .arg(
-                    Arg::with_name("contract-address")
-                        .long("contract-address")
-                        .short("c")
-                        .value_name("CONTRACT_ETH1_ADDRESS")
-                        .help("The address of the contract to be refunded. Its owner must match
-                            --from-address.")
-                        .takes_value(true)
-                        .required(true)
-                )
-        )
         .subcommand(
             SubCommand::with_name("eth1-genesis")
-                .about(
-                    "Listens to the eth1 chain and finds the genesis beacon state",
-                )
+                .about("Listens to the eth1 chain and finds the genesis beacon state")
                 .arg(
                     Arg::with_name("eth1-endpoint")
                         .short("e")
@@ -241,16 +171,16 @@ fn main() {
                         .value_name("HTTP_SERVER_LIST")
                         .takes_value(true)
                         .conflicts_with("eth1-endpoint")
-                        .help("One or more comma-delimited URLs to eth1 JSON-RPC http APIs. \
+                        .help(
+                            "One or more comma-delimited URLs to eth1 JSON-RPC http APIs. \
                                 If multiple endpoints are given the endpoints are used as \
-                                fallback in the given order."),
-                )
+                                fallback in the given order.",
+                        ),
+                ),
         )
         .subcommand(
             SubCommand::with_name("interop-genesis")
-                .about(
-                    "Produces an interop-compatible genesis state using deterministic keypairs",
-                )
+                .about("Produces an interop-compatible genesis state using deterministic keypairs")
                 .arg(
                     Arg::with_name("validator-count")
                         .long("validator-count")
@@ -273,9 +203,11 @@ fn main() {
                         .long("genesis-fork-version")
                         .value_name("HEX")
                         .takes_value(true)
-                        .help("Used to avoid reply attacks between testnets. Recommended to set to
-                              non-default."),
-                )
+                        .help(
+                            "Used to avoid reply attacks between testnets. Recommended to set to
+                              non-default.",
+                        ),
+                ),
         )
         .subcommand(
             SubCommand::with_name("change-genesis-time")
@@ -297,7 +229,7 @@ fn main() {
                         .takes_value(true)
                         .required(true)
                         .help("The value for state.genesis_time."),
-                )
+                ),
         )
         .subcommand(
             SubCommand::with_name("new-testnet")
@@ -317,8 +249,10 @@ fn main() {
                         .long("min-genesis-time")
                         .value_name("UNIX_SECONDS")
                         .takes_value(true)
-                        .help("The minimum permitted genesis time. For non-eth1 testnets will be
-                              the genesis time. Defaults to now."),
+                        .help(
+                            "The minimum permitted genesis time. For non-eth1 testnets will be
+                              the genesis time. Defaults to now.",
+                        ),
                 )
                 .arg(
                     Arg::with_name("min-genesis-active-validator-count")
@@ -374,8 +308,10 @@ fn main() {
                         .long("genesis-fork-version")
                         .value_name("HEX")
                         .takes_value(true)
-                        .help("Used to avoid reply attacks between testnets. Recommended to set to
-                              non-default."),
+                        .help(
+                            "Used to avoid reply attacks between testnets. Recommended to set to
+                              non-default.",
+                        ),
                 )
                 .arg(
                     Arg::with_name("deposit-contract-address")
@@ -391,15 +327,15 @@ fn main() {
                         .value_name("ETH1_BLOCK_NUMBER")
                         .takes_value(true)
                         .default_value("0")
-                        .help("The block the deposit contract was deployed. Setting this is a huge
-                              optimization for nodes, please do it."),
-                )
+                        .help(
+                            "The block the deposit contract was deployed. Setting this is a huge
+                              optimization for nodes, please do it.",
+                        ),
+                ),
         )
         .subcommand(
             SubCommand::with_name("check-deposit-data")
-                .about(
-                    "Checks the integrity of some deposit data.",
-                )
+                .about("Checks the integrity of some deposit data.")
                 .arg(
                     Arg::with_name("deposit-amount")
                         .index(1)
@@ -414,15 +350,15 @@ fn main() {
                         .value_name("HEX")
                         .takes_value(true)
                         .required(true)
-                        .help("A 0x-prefixed hex string of the deposit data. Should include the
-                            function signature."),
-                )
+                        .help(
+                            "A 0x-prefixed hex string of the deposit data. Should include the
+                            function signature.",
+                        ),
+                ),
         )
         .subcommand(
             SubCommand::with_name("generate-bootnode-enr")
-                .about(
-                    "Generates an ENR address to be used as a pre-genesis boot node.",
-                )
+                .about("Generates an ENR address to be used as a pre-genesis boot node.")
                 .arg(
                     Arg::with_name("ip")
                         .long("ip")
@@ -445,7 +381,9 @@ fn main() {
                         .value_name("TCP_PORT")
                         .takes_value(true)
                         .required(true)
-                        .help("The TCP port to be included in the ENR and used for application comms"),
+                        .help(
+                            "The TCP port to be included in the ENR and used for application comms",
+                        ),
                 )
                 .arg(
                     Arg::with_name("output-dir")
@@ -461,15 +399,15 @@ fn main() {
                         .value_name("HEX")
                         .takes_value(true)
                         .required(true)
-                        .help("Used to avoid reply attacks between testnets. Recommended to set to
-                              non-default."),
-                )
+                        .help(
+                            "Used to avoid reply attacks between testnets. Recommended to set to
+                              non-default.",
+                        ),
+                ),
         )
         .subcommand(
             SubCommand::with_name("insecure-validators")
-                .about(
-                    "Produces validator directories with INSECURE, deterministic keypairs.",
-                )
+                .about("Produces validator directories with INSECURE, deterministic keypairs.")
                 .arg(
                     Arg::with_name("count")
                         .long("count")
@@ -490,7 +428,7 @@ fn main() {
                         .value_name("SECRETS_DIR")
                         .takes_value(true)
                         .help("The directory for storing secrets."),
-                )
+                ),
         )
         .get_matches();
 
@@ -572,14 +510,6 @@ fn run<T: EthSpec>(
         ("pretty-hex", Some(matches)) => {
             run_parse_hex::<T>(matches).map_err(|e| format!("Failed to pretty print hex: {}", e))
         }
-        ("deploy-deposit-contract", Some(matches)) => {
-            deploy_deposit_contract::run::<T>(env, matches)
-                .map_err(|e| format!("Failed to run deploy-deposit-contract command: {}", e))
-        }
-        ("refund-deposit-contract", Some(matches)) => {
-            refund_deposit_contract::run::<T>(env, matches)
-                .map_err(|e| format!("Failed to run refund-deposit-contract command: {}", e))
-        }
         ("eth1-genesis", Some(matches)) => eth1_genesis::run::<T>(env, matches)
             .map_err(|e| format!("Failed to run eth1-genesis command: {}", e)),
         ("interop-genesis", Some(matches)) => interop_genesis::run::<T>(env, matches)
diff --git a/lcli/src/refund_deposit_contract.rs b/lcli/src/refund_deposit_contract.rs
deleted file mode 100644
index 899437760..000000000
--- a/lcli/src/refund_deposit_contract.rs
+++ /dev/null
@@ -1,47 +0,0 @@
-use clap::ArgMatches;
-use environment::Environment;
-use futures::compat::Future01CompatExt;
-use std::path::PathBuf;
-use tokio_compat_02::FutureExt;
-use types::EthSpec;
-use web3::{
-    transports::Ipc,
-    types::{Address, TransactionRequest, U256},
-    Web3,
-};
-
-/// `keccak("steal()")[0..4]`
-pub const STEAL_FN_SIGNATURE: &[u8] = &[0xcf, 0x7a, 0x89, 0x65];
-
-pub fn run<T: EthSpec>(env: Environment<T>, matches: &ArgMatches<'_>) -> Result<(), String> {
-    let eth1_ipc_path: PathBuf = clap_utils::parse_required(matches, "eth1-ipc")?;
-    let from: Address = clap_utils::parse_required(matches, "from-address")?;
-    let contract_address: Address = clap_utils::parse_required(matches, "contract-address")?;
-
-    let (_event_loop_handle, transport) =
-        Ipc::new(eth1_ipc_path).map_err(|e| format!("Unable to connect to eth1 IPC: {:?}", e))?;
-    let web3 = Web3::new(transport);
-
-    env.runtime().block_on(
-        async {
-            let _ = web3
-                .eth()
-                .send_transaction(TransactionRequest {
-                    from,
-                    to: Some(contract_address),
-                    gas: Some(U256::from(400_000)),
-                    gas_price: None,
-                    value: Some(U256::zero()),
-                    data: Some(STEAL_FN_SIGNATURE.into()),
-                    nonce: None,
-                    condition: None,
-                })
-                .compat()
-                .await
-                .map_err(|e| format!("Failed to call steal fn: {:?}", e))?;
-
-            Ok(())
-        }
-        .compat(),
-    )
-}
diff --git a/lighthouse/Cargo.toml b/lighthouse/Cargo.toml
index 50a491f69..944b35349 100644
--- a/lighthouse/Cargo.toml
+++ b/lighthouse/Cargo.toml
@@ -13,6 +13,10 @@ portable = ["bls/supranational-portable"]
 modern = ["bls/supranational-force-adx"]
 # Uses the slower Milagro BLS library, which is written in native Rust.
 milagro = ["bls/milagro"]
+# Support minimal spec (used for testing only).
+spec-minimal = []
+# Support spec v0.12 (used by Medalla testnet).
+spec-v12 = []
 
 [dependencies]
 beacon_node = { "path" = "../beacon_node" }
diff --git a/lighthouse/src/main.rs b/lighthouse/src/main.rs
index b53ab43b1..a3344d124 100644
--- a/lighthouse/src/main.rs
+++ b/lighthouse/src/main.rs
@@ -38,8 +38,10 @@ fn main() {
         .long_version(
             format!(
                 "{}\n\
-                 BLS Library: {}",
-                 VERSION.replace("Lighthouse/", ""), bls_library_name()
+                 BLS Library: {}\n\
+                 Specs: mainnet (true), minimal ({}), v0.12.3 ({})",
+                 VERSION.replace("Lighthouse/", ""), bls_library_name(),
+                 cfg!(feature = "spec-minimal"), cfg!(feature = "spec-v12"),
             ).as_str()
         )
         .arg(
@@ -151,11 +153,22 @@ fn main() {
         }
 
         match eth_spec_id {
-            EthSpecId::Minimal => run(EnvironmentBuilder::minimal(), &matches, testnet_config),
             EthSpecId::Mainnet => run(EnvironmentBuilder::mainnet(), &matches, testnet_config),
+            #[cfg(feature = "spec-minimal")]
+            EthSpecId::Minimal => run(EnvironmentBuilder::minimal(), &matches, testnet_config),
+            #[cfg(feature = "spec-v12")]
             EthSpecId::V012Legacy => {
                 run(EnvironmentBuilder::v012_legacy(), &matches, testnet_config)
             }
+            #[cfg(any(not(feature = "spec-minimal"), not(feature = "spec-v12")))]
+            other => {
+                eprintln!(
+                    "Eth spec `{}` is not supported by this build of Lighthouse",
+                    other
+                );
+                eprintln!("You must compile with a feature flag to enable this spec variant");
+                exit(1);
+            }
         }
     });
 
diff --git a/testing/eth1_test_rig/Cargo.toml b/testing/eth1_test_rig/Cargo.toml
index d538d56c1..dc7bf4f5d 100644
--- a/testing/eth1_test_rig/Cargo.toml
+++ b/testing/eth1_test_rig/Cargo.toml
@@ -6,8 +6,9 @@ edition = "2018"
 
 [dependencies]
 tokio = { version = "0.3.2", features = ["time"] }
-web3 = "0.11.0"
-futures = { version = "0.3.7", features = ["compat"] }
+tokio-compat-02 = "0.1"
+web3 = "0.13.0"
+futures = "0.3.7"
 types = { path = "../../consensus/types"}
 serde_json = "1.0.58"
 deposit_contract = { path = "../../common/deposit_contract"}
diff --git a/testing/eth1_test_rig/src/ganache.rs b/testing/eth1_test_rig/src/ganache.rs
index bd8b4c519..7b62db30b 100644
--- a/testing/eth1_test_rig/src/ganache.rs
+++ b/testing/eth1_test_rig/src/ganache.rs
@@ -1,15 +1,11 @@
-use futures::compat::Future01CompatExt;
 use serde_json::json;
 use std::io::prelude::*;
 use std::io::BufReader;
 use std::net::TcpListener;
 use std::process::{Child, Command, Stdio};
-use std::sync::Arc;
 use std::time::{Duration, Instant};
-use web3::{
-    transports::{EventLoopHandle, Http},
-    Transport, Web3,
-};
+use tokio_compat_02::FutureExt;
+use web3::{transports::Http, Transport, Web3};
 
 /// How long we will wait for ganache to indicate that it is ready.
 const GANACHE_STARTUP_TIMEOUT_MILLIS: u64 = 10_000;
@@ -20,7 +16,6 @@ const GANACHE_STARTUP_TIMEOUT_MILLIS: u64 = 10_000;
 pub struct GanacheInstance {
     pub port: u16,
     child: Child,
-    _event_loop: Arc<EventLoopHandle>,
     pub web3: Web3<Http>,
     network_id: u64,
     chain_id: u64,
@@ -56,7 +51,7 @@ impl GanacheInstance {
             }
         }?;
 
-        let (event_loop, transport) = Http::new(&endpoint(port)).map_err(|e| {
+        let transport = Http::new(&endpoint(port)).map_err(|e| {
             format!(
                 "Failed to start HTTP transport connected to ganache: {:?}",
                 e
@@ -69,7 +64,6 @@ impl GanacheInstance {
         Ok(Self {
             child,
             port,
-            _event_loop: Arc::new(event_loop),
             web3,
             network_id,
             chain_id,
diff --git a/testing/eth1_test_rig/src/lib.rs b/testing/eth1_test_rig/src/lib.rs
index acac29195..f8d146f13 100644
--- a/testing/eth1_test_rig/src/lib.rs
+++ b/testing/eth1_test_rig/src/lib.rs
@@ -10,10 +10,10 @@ mod ganache;
 use deposit_contract::{
     encode_eth1_tx_data, testnet, ABI, BYTECODE, CONTRACT_DEPLOY_GAS, DEPOSIT_GAS,
 };
-use futures::compat::Future01CompatExt;
 use ganache::GanacheInstance;
 use std::time::Duration;
 use tokio::time::sleep;
+use tokio_compat_02::FutureExt;
 use types::DepositData;
 use types::{test_utils::generate_deterministic_keypair, EthSpec, Hash256, Keypair, Signature};
 use web3::contract::{Contract, Options};
diff --git a/validator_client/Cargo.toml b/validator_client/Cargo.toml
index f8dab59d2..69f95b7de 100644
--- a/validator_client/Cargo.toml
+++ b/validator_client/Cargo.toml
@@ -32,7 +32,7 @@ slog = { version = "2.5.2", features = ["max_level_trace", "release_max_level_tr
 slog-async = "2.5.0"
 slog-term = "2.6.0"
 tokio = { version = "0.3.2", features = ["time"] }
-futures = { version = "0.3.7", features = ["compat"] }
+futures = "0.3.7"
 dirs = "3.0.1"
 directory = { path = "../common/directory" }
 lockfile = { path = "../common/lockfile" }