[INFO] crate days-in-month 2.0.0 is already in cache
[INFO] extracting crate days-in-month 2.0.0 into work/ex/clippy-test-run/sources/stable/reg/days-in-month/2.0.0
[INFO] extracting crate days-in-month 2.0.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/days-in-month/2.0.0
[INFO] validating manifest of days-in-month-2.0.0 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 days-in-month-2.0.0 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 days-in-month-2.0.0
[INFO] finished frobbing days-in-month-2.0.0
[INFO] frobbed toml for days-in-month-2.0.0 written to work/ex/clippy-test-run/sources/stable/reg/days-in-month/2.0.0/Cargo.toml
[INFO] started frobbing days-in-month-2.0.0
[INFO] finished frobbing days-in-month-2.0.0
[INFO] frobbed toml for days-in-month-2.0.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/days-in-month/2.0.0/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 days-in-month-2.0.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/days-in-month/2.0.0:/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] a1c1b36cbf8453662e414f6414e767956b33e5ca24224aebf48d4cbaf2e99911
[INFO] running `"docker" "start" "-a" "a1c1b36cbf8453662e414f6414e767956b33e5ca24224aebf48d4cbaf2e99911"`
[INFO] [stderr]     Checking leap-year v0.1.0
[INFO] [stderr]     Checking days-in-month v2.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:6:5
[INFO] [stderr]    |
[INFO] [stderr] 6  | /     return match month {
[INFO] [stderr] 7  | |         2 => if is_leap_year(year) { 29 } else { 28 },
[INFO] [stderr] 8  | |         4 | 6 | 9 | 11 => 30,
[INFO] [stderr] 9  | |         _ => 31,
[INFO] [stderr] 10 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 6  |     match month {
[INFO] [stderr] 7  |         2 => if is_leap_year(year) { 29 } else { 28 },
[INFO] [stderr] 8  |         4 | 6 | 9 | 11 => 30,
[INFO] [stderr] 9  |         _ => 31,
[INFO] [stderr] 10 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:6:5
[INFO] [stderr]    |
[INFO] [stderr] 6  | /     return match month {
[INFO] [stderr] 7  | |         2 => if is_leap_year(year) { 29 } else { 28 },
[INFO] [stderr] 8  | |         4 | 6 | 9 | 11 => 30,
[INFO] [stderr] 9  | |         _ => 31,
[INFO] [stderr] 10 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 6  |     match month {
[INFO] [stderr] 7  |         2 => if is_leap_year(year) { 29 } else { 28 },
[INFO] [stderr] 8  |         4 | 6 | 9 | 11 => 30,
[INFO] [stderr] 9  |         _ => 31,
[INFO] [stderr] 10 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.93s
[INFO] running `"docker" "inspect" "a1c1b36cbf8453662e414f6414e767956b33e5ca24224aebf48d4cbaf2e99911"`
[INFO] running `"docker" "rm" "-f" "a1c1b36cbf8453662e414f6414e767956b33e5ca24224aebf48d4cbaf2e99911"`
[INFO] [stdout] a1c1b36cbf8453662e414f6414e767956b33e5ca24224aebf48d4cbaf2e99911