diff --git a/extern/sector-storage/ffiwrapper/sealer_test.go b/extern/sector-storage/ffiwrapper/sealer_test.go
index 97102e50e..4ec7977fc 100644
--- a/extern/sector-storage/ffiwrapper/sealer_test.go
+++ b/extern/sector-storage/ffiwrapper/sealer_test.go
@@ -32,7 +32,6 @@ import (
 	"github.com/filecoin-project/specs-storage/storage"
 
 	ffi "github.com/filecoin-project/filecoin-ffi"
-	"github.com/filecoin-project/filecoin-ffi/generated"
 
 	"github.com/filecoin-project/lotus/chain/actors/policy"
 	"github.com/filecoin-project/lotus/extern/sector-storage/ffiwrapper/basicfs"
@@ -869,89 +868,6 @@ func TestAddPiece512MPadded(t *testing.T) {
 	require.Equal(t, "baga6ea4seaqonenxyku4o7hr5xkzbqsceipf6xgli3on54beqbk6k246sbooobq", c.PieceCID.String())
 }
 
-func setupLogger(t *testing.T) *bytes.Buffer {
-	_ = os.Setenv("RUST_LOG", "info")
-
-	var bb bytes.Buffer
-	r, w, err := os.Pipe()
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	go func() {
-		_, _ = io.Copy(&bb, r)
-		runtime.KeepAlive(w)
-	}()
-
-	resp := generated.FilInitLogFd(int32(w.Fd()))
-	resp.Deref()
-
-	defer generated.FilDestroyInitLogFdResponse(resp)
-
-	if resp.StatusCode != generated.FCPResponseStatusFCPNoError {
-		t.Fatal(generated.RawString(resp.ErrorMsg).Copy())
-	}
-
-	return &bb
-}
-
-func TestMulticoreSDR(t *testing.T) {
-	if os.Getenv("TEST_RUSTPROOFS_LOGS") != "1" {
-		t.Skip("skipping test without TEST_RUSTPROOFS_LOGS=1")
-	}
-
-	rustLogger := setupLogger(t)
-
-	getGrothParamFileAndVerifyingKeys(sectorSize)
-
-	dir, err := ioutil.TempDir("", "sbtest")
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	miner := abi.ActorID(123)
-
-	sp := &basicfs.Provider{
-		Root: dir,
-	}
-	sb, err := New(sp)
-	if err != nil {
-		t.Fatalf("%+v", err)
-	}
-
-	t.Cleanup(func() {
-		if t.Failed() {
-			fmt.Printf("not removing %s\n", dir)
-			return
-		}
-		if err := os.RemoveAll(dir); err != nil {
-			t.Error(err)
-		}
-	})
-
-	si := storage.SectorRef{
-		ID:        abi.SectorID{Miner: miner, Number: 1},
-		ProofType: sealProofType,
-	}
-
-	s := seal{ref: si}
-
-	// check multicore
-	_ = os.Setenv("FIL_PROOFS_USE_MULTICORE_SDR", "1")
-	rustLogger.Reset()
-	s.precommit(t, sb, si, func() {})
-
-	ok := false
-	for _, s := range strings.Split(rustLogger.String(), "\n") {
-		if strings.Contains(s, "create_label::multi") {
-			ok = true
-			break
-		}
-	}
-
-	require.True(t, ok)
-}
-
 func TestPoStChallengeAssumptions(t *testing.T) {
 	var r [32]byte
 	rand.Read(r[:])