[INFO] crate corona 0.4.0 is already in cache
[INFO] extracting crate corona 0.4.0 into work/ex/clippy-test-run/sources/stable/reg/corona/0.4.0
[INFO] extracting crate corona 0.4.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/corona/0.4.0
[INFO] validating manifest of corona-0.4.0 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 corona-0.4.0 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 corona-0.4.0
[INFO] removed 0 missing tests
[INFO] finished frobbing corona-0.4.0
[INFO] frobbed toml for corona-0.4.0 written to work/ex/clippy-test-run/sources/stable/reg/corona/0.4.0/Cargo.toml
[INFO] started frobbing corona-0.4.0
[INFO] removed 0 missing tests
[INFO] finished frobbing corona-0.4.0
[INFO] frobbed toml for corona-0.4.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/corona/0.4.0/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 corona-0.4.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/corona/0.4.0:/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] c599ed062152913a40d276cd6101e5a2a1302f29df6ee50423c376635bee079e
[INFO] running `"docker" "start" "-a" "c599ed062152913a40d276cd6101e5a2a1302f29df6ee50423c376635bee079e"`
[INFO] [stderr]    Compiling context v2.1.0
[INFO] [stderr]     Checking corona v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/coroutine.rs:596:17
[INFO] [stderr]     |
[INFO] [stderr] 596 |                 msg
[INFO] [stderr]     |                 ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/coroutine.rs:595:27
[INFO] [stderr]     |
[INFO] [stderr] 595 |                 let msg = Coroutine::wait(receiver).unwrap().unwrap();
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_ok()`
[INFO] [stderr]    --> src/coroutine.rs:719:24
[INFO] [stderr]     |
[INFO] [stderr] 719 |                   if let Ok(_) = panic::catch_unwind(|| Coroutine::wait(PanicFuture)) {
[INFO] [stderr]     |  _________________-      ^^^^^
[INFO] [stderr] 720 | |                     panic!("A panic should fall out of wait");
[INFO] [stderr] 721 | |                 }
[INFO] [stderr]     | |_________________- help: try this: `if panic::catch_unwind(|| Coroutine::wait(PanicFuture)).is_ok()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.05s
[INFO] running `"docker" "inspect" "c599ed062152913a40d276cd6101e5a2a1302f29df6ee50423c376635bee079e"`
[INFO] running `"docker" "rm" "-f" "c599ed062152913a40d276cd6101e5a2a1302f29df6ee50423c376635bee079e"`
[INFO] [stdout] c599ed062152913a40d276cd6101e5a2a1302f29df6ee50423c376635bee079e