Dec 17 22:02:16.942 INFO checking jrobar/Twelve-Days-of-Christmas against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 22:02:16.943 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/jrobar/Twelve-Days-of-Christmas:/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 17 22:02:17.155 INFO [stdout] d4893d7a6b7137c3aa58ab378b82173df9a7b48c08136edc30418d106c1b475a
Dec 17 22:02:17.158 INFO running `"docker" "start" "-a" "d4893d7a6b7137c3aa58ab378b82173df9a7b48c08136edc30418d106c1b475a"`
Dec 17 22:02:17.700 INFO [stderr]     Checking twelve_days_of_christmas v0.1.0 (/opt/crater/workdir)
Dec 17 22:02:17.894 INFO [stderr] warning: variable does not need to be mutable
Dec 17 22:02:17.894 INFO [stderr]  --> src/main.rs:6:9
Dec 17 22:02:17.894 INFO [stderr]   |
Dec 17 22:02:17.894 INFO [stderr] 6 |     let mut n = 11;
Dec 17 22:02:17.894 INFO [stderr]   |         ----^
Dec 17 22:02:17.894 INFO [stderr]   |         |
Dec 17 22:02:17.894 INFO [stderr]   |         help: remove this `mut`
Dec 17 22:02:17.894 INFO [stderr]   |
Dec 17 22:02:17.894 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 17 22:02:17.894 INFO [stderr] 
Dec 17 22:02:17.914 INFO [stderr] warning: variable does not need to be mutable
Dec 17 22:02:17.914 INFO [stderr]  --> src/main.rs:6:9
Dec 17 22:02:17.914 INFO [stderr]   |
Dec 17 22:02:17.914 INFO [stderr] 6 |     let mut n = 11;
Dec 17 22:02:17.914 INFO [stderr]   |         ----^
Dec 17 22:02:17.914 INFO [stderr]   |         |
Dec 17 22:02:17.914 INFO [stderr]   |         help: remove this `mut`
Dec 17 22:02:17.914 INFO [stderr]   |
Dec 17 22:02:17.914 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 17 22:02:17.914 INFO [stderr] 
Dec 17 22:02:17.928 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
Dec 17 22:02:18.239 INFO running `"docker" "inspect" "d4893d7a6b7137c3aa58ab378b82173df9a7b48c08136edc30418d106c1b475a"`
Dec 17 22:02:18.296 INFO running `"docker" "rm" "-f" "d4893d7a6b7137c3aa58ab378b82173df9a7b48c08136edc30418d106c1b475a"`
Dec 17 22:02:18.394 INFO [stdout] d4893d7a6b7137c3aa58ab378b82173df9a7b48c08136edc30418d106c1b475a