Dec 12 14:28:25.613 INFO checking git-workarea-3.1.2 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 14:28:25.613 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 14:28:25.968 INFO [stdout] c826c8c4b9b713801c40de1a0b7c99fe1e9363e186f1758cddec96275fc2f63e
Dec 12 14:28:25.974 INFO running `"docker" "start" "-a" "c826c8c4b9b713801c40de1a0b7c99fe1e9363e186f1758cddec96275fc2f63e"`
Dec 12 14:28:26.396 INFO [stderr] usermod: no changes
Dec 12 14:28:26.476 INFO [stderr]     Checking git-workarea v3.1.2 (/source)
Dec 12 14:28:30.184 INFO [stderr] warning: variable does not need to be mutable
Dec 12 14:28:30.184 INFO [stderr]    --> src/prepare.rs:111:17
Dec 12 14:28:30.185 INFO [stderr]     |
Dec 12 14:28:30.185 INFO [stderr] 111 |             let mut commit_tree_stdin =
Dec 12 14:28:30.185 INFO [stderr]     |                 ----^^^^^^^^^^^^^^^^^
Dec 12 14:28:30.186 INFO [stderr]     |                 |
Dec 12 14:28:30.186 INFO [stderr]     |                 help: remove this `mut`
Dec 12 14:28:30.186 INFO [stderr]     |
Dec 12 14:28:30.187 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 14:28:30.187 INFO [stderr] 
Dec 12 14:28:30.693 INFO [stderr] warning: variable does not need to be mutable
Dec 12 14:28:30.694 INFO [stderr]    --> src/prepare.rs:111:17
Dec 12 14:28:30.694 INFO [stderr]     |
Dec 12 14:28:30.694 INFO [stderr] 111 |             let mut commit_tree_stdin =
Dec 12 14:28:30.694 INFO [stderr]     |                 ----^^^^^^^^^^^^^^^^^
Dec 12 14:28:30.695 INFO [stderr]     |                 |
Dec 12 14:28:30.695 INFO [stderr]     |                 help: remove this `mut`
Dec 12 14:28:30.695 INFO [stderr]     |
Dec 12 14:28:30.695 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 14:28:30.695 INFO [stderr] 
Dec 12 14:28:30.946 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.53s
Dec 12 14:28:30.962 INFO [stderr] su: No module specific data is present
Dec 12 14:28:32.286 INFO running `"docker" "inspect" "c826c8c4b9b713801c40de1a0b7c99fe1e9363e186f1758cddec96275fc2f63e"`
Dec 12 14:28:32.672 INFO running `"docker" "rm" "-f" "c826c8c4b9b713801c40de1a0b7c99fe1e9363e186f1758cddec96275fc2f63e"`
Dec 12 14:28:32.972 INFO [stdout] c826c8c4b9b713801c40de1a0b7c99fe1e9363e186f1758cddec96275fc2f63e