[INFO] crate futures-crypto 0.1.0 is already in cache
[INFO] extracting crate futures-crypto 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/futures-crypto/0.1.0
[INFO] extracting crate futures-crypto 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/futures-crypto/0.1.0
[INFO] validating manifest of futures-crypto-0.1.0 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of futures-crypto-0.1.0 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing futures-crypto-0.1.0
[INFO] finished frobbing futures-crypto-0.1.0
[INFO] frobbed toml for futures-crypto-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/futures-crypto/0.1.0/Cargo.toml
[INFO] started frobbing futures-crypto-0.1.0
[INFO] finished frobbing futures-crypto-0.1.0
[INFO] frobbed toml for futures-crypto-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/futures-crypto/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting futures-crypto-0.1.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/futures-crypto/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4a5cff14ab413cfa999d71a6158f31ead5fd0cd8e6117c9d866f6380f06d884f
[INFO] running `"docker" "start" "-a" "4a5cff14ab413cfa999d71a6158f31ead5fd0cd8e6117c9d866f6380f06d884f"`
[INFO] [stderr]     Checking futures-crypto v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/cipher.rs:136:40
[INFO] [stderr]     |
[INFO] [stderr] 136 |                         .map_err(|err| Error(err).into())?;
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `Error(err)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/cipher.rs:146:40
[INFO] [stderr]     |
[INFO] [stderr] 146 |                         .map_err(|err| Error(err).into())?;
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `Error(err)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/cipher.rs:136:40
[INFO] [stderr]     |
[INFO] [stderr] 136 |                         .map_err(|err| Error(err).into())?;
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `Error(err)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/cipher.rs:146:40
[INFO] [stderr]     |
[INFO] [stderr] 146 |                         .map_err(|err| Error(err).into())?;
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `Error(err)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]    --> src/cipher.rs:238:13
[INFO] [stderr]     |
[INFO] [stderr] 238 |             config.iv_mut().map(|iv| g.fill_bytes(iv));
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: try this: `if let Some(iv) = config.iv_mut() { g.fill_bytes(iv) }`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::option_map_unit_fn)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.29s
[INFO] running `"docker" "inspect" "4a5cff14ab413cfa999d71a6158f31ead5fd0cd8e6117c9d866f6380f06d884f"`
[INFO] running `"docker" "rm" "-f" "4a5cff14ab413cfa999d71a6158f31ead5fd0cd8e6117c9d866f6380f06d884f"`
[INFO] [stdout] 4a5cff14ab413cfa999d71a6158f31ead5fd0cd8e6117c9d866f6380f06d884f