Dec 18 16:06:32.947 INFO checking git-workarea-3.1.2 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 16:06:32.947 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/git-workarea/3.1.2:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 16:06:33.119 INFO [stdout] aceca784ba27609beb47df83ae4611d485563bd2dfa1abae54c2fb566219c264
Dec 18 16:06:33.122 INFO running `"docker" "start" "-a" "aceca784ba27609beb47df83ae4611d485563bd2dfa1abae54c2fb566219c264"`
Dec 18 16:06:34.264 INFO [stderr]     Checking git-workarea v3.1.2 (/opt/crater/workdir)
Dec 18 16:06:35.916 INFO [stderr] warning: variable does not need to be mutable
Dec 18 16:06:35.916 INFO [stderr]    --> src/prepare.rs:111:17
Dec 18 16:06:35.916 INFO [stderr]     |
Dec 18 16:06:35.916 INFO [stderr] 111 |             let mut commit_tree_stdin =
Dec 18 16:06:35.916 INFO [stderr]     |                 ----^^^^^^^^^^^^^^^^^
Dec 18 16:06:35.916 INFO [stderr]     |                 |
Dec 18 16:06:35.916 INFO [stderr]     |                 help: remove this `mut`
Dec 18 16:06:35.916 INFO [stderr]     |
Dec 18 16:06:35.916 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 16:06:35.916 INFO [stderr] 
Dec 18 16:06:36.212 INFO [stderr] warning: variable does not need to be mutable
Dec 18 16:06:36.212 INFO [stderr]    --> src/prepare.rs:111:17
Dec 18 16:06:36.212 INFO [stderr]     |
Dec 18 16:06:36.212 INFO [stderr] 111 |             let mut commit_tree_stdin =
Dec 18 16:06:36.212 INFO [stderr]     |                 ----^^^^^^^^^^^^^^^^^
Dec 18 16:06:36.212 INFO [stderr]     |                 |
Dec 18 16:06:36.212 INFO [stderr]     |                 help: remove this `mut`
Dec 18 16:06:36.212 INFO [stderr]     |
Dec 18 16:06:36.212 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 16:06:36.212 INFO [stderr] 
Dec 18 16:06:36.442 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.32s
Dec 18 16:06:36.890 INFO running `"docker" "inspect" "aceca784ba27609beb47df83ae4611d485563bd2dfa1abae54c2fb566219c264"`
Dec 18 16:06:37.159 INFO running `"docker" "rm" "-f" "aceca784ba27609beb47df83ae4611d485563bd2dfa1abae54c2fb566219c264"`
Dec 18 16:06:37.425 INFO [stdout] aceca784ba27609beb47df83ae4611d485563bd2dfa1abae54c2fb566219c264