[INFO] crate rustdt_util 0.2.3 is already in cache
[INFO] extracting crate rustdt_util 0.2.3 into work/ex/clippy-test-run/sources/stable/reg/rustdt_util/0.2.3
[INFO] extracting crate rustdt_util 0.2.3 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rustdt_util/0.2.3
[INFO] validating manifest of rustdt_util-0.2.3 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 rustdt_util-0.2.3 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 rustdt_util-0.2.3
[INFO] finished frobbing rustdt_util-0.2.3
[INFO] frobbed toml for rustdt_util-0.2.3 written to work/ex/clippy-test-run/sources/stable/reg/rustdt_util/0.2.3/Cargo.toml
[INFO] started frobbing rustdt_util-0.2.3
[INFO] finished frobbing rustdt_util-0.2.3
[INFO] frobbed toml for rustdt_util-0.2.3 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rustdt_util/0.2.3/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 rustdt_util-0.2.3 against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rustdt_util/0.2.3:/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 -Dclippy::into_iter_on_array" "-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] cba63a3b0cefc640207ceee1d6f01e9a0ddbbe4154abdd46de6cc58eedc4e4be
[INFO] running `"docker" "start" "-a" "cba63a3b0cefc640207ceee1d6f01e9a0ddbbe4154abdd46de6cc58eedc4e4be"`
[INFO] [stderr]     Checking rustdt_util v0.2.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/core.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         return self.0
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: remove `return` as shown: `self.0`
[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] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/core.rs:70:24
[INFO] [stderr]    |
[INFO] [stderr] 70 |         Ok(refCell) => return refCell.into_inner(),
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `refCell.into_inner()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/core.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         return self.0
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: remove `return` as shown: `self.0`
[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] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/core.rs:70:24
[INFO] [stderr]    |
[INFO] [stderr] 70 |         Ok(refCell) => return refCell.into_inner(),
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `refCell.into_inner()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]   --> src/core.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         Err(_) => panic!("std::Rc unwrap failed")
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_wild_err_arm)] on by default
[INFO] [stderr]    = note: to remove this warning, match each error separately or use unreachable macro
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm
[INFO] [stderr] 
[INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]   --> src/core.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         Err(_) => panic!("std::Rc unwrap failed")
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_wild_err_arm)] on by default
[INFO] [stderr]    = note: to remove this warning, match each error separately or use unreachable macro
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `"docker" "inspect" "cba63a3b0cefc640207ceee1d6f01e9a0ddbbe4154abdd46de6cc58eedc4e4be"`
[INFO] running `"docker" "rm" "-f" "cba63a3b0cefc640207ceee1d6f01e9a0ddbbe4154abdd46de6cc58eedc4e4be"`
[INFO] [stdout] cba63a3b0cefc640207ceee1d6f01e9a0ddbbe4154abdd46de6cc58eedc4e4be