[INFO] crate reciter 0.1.2 is already in cache
[INFO] extracting crate reciter 0.1.2 into work/ex/clippy-test-run/sources/stable/reg/reciter/0.1.2
[INFO] extracting crate reciter 0.1.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/reciter/0.1.2
[INFO] validating manifest of reciter-0.1.2 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 reciter-0.1.2 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 reciter-0.1.2
[INFO] finished frobbing reciter-0.1.2
[INFO] frobbed toml for reciter-0.1.2 written to work/ex/clippy-test-run/sources/stable/reg/reciter/0.1.2/Cargo.toml
[INFO] started frobbing reciter-0.1.2
[INFO] finished frobbing reciter-0.1.2
[INFO] frobbed toml for reciter-0.1.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/reciter/0.1.2/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 reciter-0.1.2 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/reciter/0.1.2:/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] 9c881b6d6043e595261e110f616e504807e0cb3c0504f411c1e99c57d7347408
[INFO] running `"docker" "start" "-a" "9c881b6d6043e595261e110f616e504807e0cb3c0504f411c1e99c57d7347408"`
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]     Checking Inflector v0.11.4
[INFO] [stderr]     Checking reciter v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/lib.rs:306:5
[INFO] [stderr]     |
[INFO] [stderr] 306 |     tokens
[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/lib.rs:198:18
[INFO] [stderr]     |
[INFO] [stderr] 198 |       let tokens = if let Some(cache_size) = cache_size {
[INFO] [stderr]     |  __________________^
[INFO] [stderr] 199 | |         if cache_size > 32 {
[INFO] [stderr] 200 | |             panic!("cache > 32 doesn't work at the momeent because Default is only implemented for arrays up to the size of 32")
[INFO] [stderr] 201 | |         }
[INFO] [stderr] ...   |
[INFO] [stderr] 304 | |         .into()
[INFO] [stderr] 305 | |     };
[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: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/lib.rs:306:5
[INFO] [stderr]     |
[INFO] [stderr] 306 |     tokens
[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/lib.rs:198:18
[INFO] [stderr]     |
[INFO] [stderr] 198 |       let tokens = if let Some(cache_size) = cache_size {
[INFO] [stderr]     |  __________________^
[INFO] [stderr] 199 | |         if cache_size > 32 {
[INFO] [stderr] 200 | |             panic!("cache > 32 doesn't work at the momeent because Default is only implemented for arrays up to the size of 32")
[INFO] [stderr] 201 | |         }
[INFO] [stderr] ...   |
[INFO] [stderr] 304 | |         .into()
[INFO] [stderr] 305 | |     };
[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]     Finished dev [unoptimized + debuginfo] target(s) in 28.55s
[INFO] running `"docker" "inspect" "9c881b6d6043e595261e110f616e504807e0cb3c0504f411c1e99c57d7347408"`
[INFO] running `"docker" "rm" "-f" "9c881b6d6043e595261e110f616e504807e0cb3c0504f411c1e99c57d7347408"`
[INFO] [stdout] 9c881b6d6043e595261e110f616e504807e0cb3c0504f411c1e99c57d7347408