[INFO] crate take_mut 0.2.2 is already in cache
[INFO] extracting crate take_mut 0.2.2 into work/ex/clippy-test-run/sources/stable/reg/take_mut/0.2.2
[INFO] extracting crate take_mut 0.2.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/take_mut/0.2.2
[INFO] validating manifest of take_mut-0.2.2 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 take_mut-0.2.2 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 take_mut-0.2.2
[INFO] finished frobbing take_mut-0.2.2
[INFO] frobbed toml for take_mut-0.2.2 written to work/ex/clippy-test-run/sources/stable/reg/take_mut/0.2.2/Cargo.toml
[INFO] started frobbing take_mut-0.2.2
[INFO] finished frobbing take_mut-0.2.2
[INFO] frobbed toml for take_mut-0.2.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/take_mut/0.2.2/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 take_mut-0.2.2 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/take_mut/0.2.2:/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] 3dc54e0eb231cece1b2f5791bf020c3bba30e7954839e0320a070bf3a8b929d3
[INFO] running `"docker" "start" "-a" "3dc54e0eb231cece1b2f5791bf020c3bba30e7954839e0320a070bf3a8b929d3"`
[INFO] [stderr]     Checking take_mut v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> src/scoped.rs:72:69
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn take<'c, 'm: 's, T: 'm>(&'c self, mut_ref: &'m mut T) -> (T, Hole<'c, 'm, T, fn() -> T>) {
[INFO] [stderr]    |                                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::type_complexity)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/lib.rs:89:69
[INFO] [stderr]    |
[INFO] [stderr] 89 |                 let r = panic::catch_unwind(panic::AssertUnwindSafe(|| recover()))
[INFO] [stderr]    |                                                                     ^^^^^^^^^^^^ help: remove closure as shown: `recover`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/lib.rs:141:13
[INFO] [stderr]     |
[INFO] [stderr] 141 |             Foo::B
[INFO] [stderr]     |             ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/scoped.rs:153:14
[INFO] [stderr]     |
[INFO] [stderr] 153 |         let (a, a_hole) = scope.take(&mut bar.a);
[INFO] [stderr]     |              ^ help: consider using `_a` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/scoped.rs:154:14
[INFO] [stderr]     |
[INFO] [stderr] 154 |         let (b, b_hole) = scope.take(&mut bar.b);
[INFO] [stderr]     |              ^ help: consider using `_b` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/scoped.rs:170:18
[INFO] [stderr]     |
[INFO] [stderr] 170 |             let (t, hole) = scope.take_or_recover(&mut foo, || Foo);
[INFO] [stderr]     |                  ^ help: consider using `_t` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hole`
[INFO] [stderr]    --> src/scoped.rs:170:21
[INFO] [stderr]     |
[INFO] [stderr] 170 |             let (t, hole) = scope.take_or_recover(&mut foo, || Foo);
[INFO] [stderr]     |                     ^^^^ help: consider using `_hole` instead
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> src/scoped.rs:72:69
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn take<'c, 'm: 's, T: 'm>(&'c self, mut_ref: &'m mut T) -> (T, Hole<'c, 'm, T, fn() -> T>) {
[INFO] [stderr]    |                                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::type_complexity)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: use of a blacklisted/placeholder name `bar`
[INFO] [stderr]    --> src/scoped.rs:151:13
[INFO] [stderr]     |
[INFO] [stderr] 151 |     let mut bar = Bar { a: Foo, b: Foo };
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::blacklisted_name)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#blacklisted_name
[INFO] [stderr] 
[INFO] [stderr] warning: use of a blacklisted/placeholder name `foo`
[INFO] [stderr]    --> src/scoped.rs:167:13
[INFO] [stderr]     |
[INFO] [stderr] 167 |     let mut foo = Foo;
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#blacklisted_name
[INFO] [stderr] 
[INFO] [stderr] warning: use of a blacklisted/placeholder name `foo`
[INFO] [stderr]   --> src/lib.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 |     let mut foo = Foo::A;
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#blacklisted_name
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/lib.rs:89:69
[INFO] [stderr]    |
[INFO] [stderr] 89 |                 let r = panic::catch_unwind(panic::AssertUnwindSafe(|| recover()))
[INFO] [stderr]    |                                                                     ^^^^^^^^^^^^ help: remove closure as shown: `recover`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: use of a blacklisted/placeholder name `foo`
[INFO] [stderr]    --> src/lib.rs:114:13
[INFO] [stderr]     |
[INFO] [stderr] 114 |     let mut foo = Foo::A;
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#blacklisted_name
[INFO] [stderr] 
[INFO] [stderr] warning: use of a blacklisted/placeholder name `foo`
[INFO] [stderr]    --> src/lib.rs:135:13
[INFO] [stderr]     |
[INFO] [stderr] 135 |     let mut foo = Foo::A;
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#blacklisted_name
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "3dc54e0eb231cece1b2f5791bf020c3bba30e7954839e0320a070bf3a8b929d3"`
[INFO] running `"docker" "rm" "-f" "3dc54e0eb231cece1b2f5791bf020c3bba30e7954839e0320a070bf3a8b929d3"`
[INFO] [stdout] 3dc54e0eb231cece1b2f5791bf020c3bba30e7954839e0320a070bf3a8b929d3