Akihito Nakano 4186d117af Replace OpenOptions::new with File::options to be readable (#3059) ... ## Issue Addressed Closes #3049 This PR updates widely but this replace is safe as `File::options()` is equivelent to `OpenOptions::new()`. ref: https://doc.rust-lang.org/stable/src/std/fs.rs.html#378-380		2022-03-07 06:30:18 +00:00
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src	Replace OpenOptions::new with File::options to be readable (#3059)	2022-03-07 06:30:18 +00:00
Cargo.toml	Update to Rust 1.59 and 2021 edition (#3038)	2022-02-25 00:10:17 +00:00