Dec 18 10:32:55.085 INFO checking take_mut-0.2.2 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 10:32:55.085 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 10:32:55.339 INFO [stdout] 3858587bc5b4396e2fe86a76c5ed6feadc9948712132222099290c85515fa970
Dec 18 10:32:55.342 INFO running `"docker" "start" "-a" "3858587bc5b4396e2fe86a76c5ed6feadc9948712132222099290c85515fa970"`
Dec 18 10:32:55.919 INFO [stderr]     Checking take_mut v0.2.2 (/opt/crater/workdir)
Dec 18 10:32:56.331 INFO [stderr] warning: unreachable expression
Dec 18 10:32:56.331 INFO [stderr]    --> src/lib.rs:141:13
Dec 18 10:32:56.331 INFO [stderr]     |
Dec 18 10:32:56.331 INFO [stderr] 141 |             Foo::B
Dec 18 10:32:56.331 INFO [stderr]     |             ^^^^^^
Dec 18 10:32:56.331 INFO [stderr]     |
Dec 18 10:32:56.331 INFO [stderr]     = note: #[warn(unreachable_code)] on by default
Dec 18 10:32:56.331 INFO [stderr] 
Dec 18 10:32:56.357 INFO [stderr] warning: unused variable: `a`
Dec 18 10:32:56.357 INFO [stderr]    --> src/scoped.rs:153:14
Dec 18 10:32:56.357 INFO [stderr]     |
Dec 18 10:32:56.357 INFO [stderr] 153 |         let (a, a_hole) = scope.take(&mut bar.a);
Dec 18 10:32:56.357 INFO [stderr]     |              ^ help: consider using `_a` instead
Dec 18 10:32:56.357 INFO [stderr]     |
Dec 18 10:32:56.357 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 10:32:56.357 INFO [stderr] 
Dec 18 10:32:56.357 INFO [stderr] warning: unused variable: `b`
Dec 18 10:32:56.357 INFO [stderr]    --> src/scoped.rs:154:14
Dec 18 10:32:56.357 INFO [stderr]     |
Dec 18 10:32:56.357 INFO [stderr] 154 |         let (b, b_hole) = scope.take(&mut bar.b);
Dec 18 10:32:56.357 INFO [stderr]     |              ^ help: consider using `_b` instead
Dec 18 10:32:56.357 INFO [stderr] 
Dec 18 10:32:56.357 INFO [stderr] warning: unused variable: `t`
Dec 18 10:32:56.357 INFO [stderr]    --> src/scoped.rs:170:18
Dec 18 10:32:56.357 INFO [stderr]     |
Dec 18 10:32:56.357 INFO [stderr] 170 |             let (t, hole) = scope.take_or_recover(&mut foo, || Foo);
Dec 18 10:32:56.357 INFO [stderr]     |                  ^ help: consider using `_t` instead
Dec 18 10:32:56.357 INFO [stderr] 
Dec 18 10:32:56.357 INFO [stderr] warning: unused variable: `hole`
Dec 18 10:32:56.357 INFO [stderr]    --> src/scoped.rs:170:21
Dec 18 10:32:56.357 INFO [stderr]     |
Dec 18 10:32:56.357 INFO [stderr] 170 |             let (t, hole) = scope.take_or_recover(&mut foo, || Foo);
Dec 18 10:32:56.357 INFO [stderr]     |                     ^^^^ help: consider using `_hole` instead
Dec 18 10:32:56.357 INFO [stderr] 
Dec 18 10:32:56.420 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
Dec 18 10:32:56.717 INFO running `"docker" "inspect" "3858587bc5b4396e2fe86a76c5ed6feadc9948712132222099290c85515fa970"`
Dec 18 10:32:56.850 INFO running `"docker" "rm" "-f" "3858587bc5b4396e2fe86a76c5ed6feadc9948712132222099290c85515fa970"`
Dec 18 10:32:56.923 INFO [stdout] 3858587bc5b4396e2fe86a76c5ed6feadc9948712132222099290c85515fa970