[INFO] crate fingertrees 0.2.1 is already in cache
[INFO] extracting crate fingertrees 0.2.1 into work/ex/clippy-test-run/sources/stable/reg/fingertrees/0.2.1
[INFO] extracting crate fingertrees 0.2.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/fingertrees/0.2.1
[INFO] validating manifest of fingertrees-0.2.1 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 fingertrees-0.2.1 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 fingertrees-0.2.1
[INFO] finished frobbing fingertrees-0.2.1
[INFO] frobbed toml for fingertrees-0.2.1 written to work/ex/clippy-test-run/sources/stable/reg/fingertrees/0.2.1/Cargo.toml
[INFO] started frobbing fingertrees-0.2.1
[INFO] finished frobbing fingertrees-0.2.1
[INFO] frobbed toml for fingertrees-0.2.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/fingertrees/0.2.1/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 fingertrees-0.2.1 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/fingertrees/0.2.1:/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] b5f5e4e5db1af83564e0df8fd26864acd4c12ef27c72775b16ab349e68b3db7b
[INFO] running `"docker" "start" "-a" "b5f5e4e5db1af83564e0df8fd26864acd4c12ef27c72775b16ab349e68b3db7b"`
[INFO] [stderr]     Checking fingertrees v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] error: redundant closure found
[INFO] [stderr]   --> src/test/quickcheck.rs:31:40
[INFO] [stderr]    |
[INFO] [stderr] 31 |         Box::new((**self).shrink().map(|v| Size(v)))
[INFO] [stderr]    |                                        ^^^^^^^^^^^ help: remove closure as shown: `Size`
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/lib.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 | #![deny(warnings)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: #[deny(clippy::redundant_closure)] implied by #[deny(warnings)]
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `fingertrees`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `KB`
[INFO] [stderr]   --> benches/criterion.rs:17:11
[INFO] [stderr]    |
[INFO] [stderr] 17 |         &[1 * KB, 2 * KB, 4 * KB, 16 * KB],
[INFO] [stderr]    |           ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_op)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "b5f5e4e5db1af83564e0df8fd26864acd4c12ef27c72775b16ab349e68b3db7b"`
[INFO] running `"docker" "rm" "-f" "b5f5e4e5db1af83564e0df8fd26864acd4c12ef27c72775b16ab349e68b3db7b"`
[INFO] [stdout] b5f5e4e5db1af83564e0df8fd26864acd4c12ef27c72775b16ab349e68b3db7b