Dec 17 11:23:51.663 INFO checking ymmtmdk/shadow_cost_rust against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 11:23:51.663 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/ymmtmdk/shadow_cost_rust:/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 11:23:52.234 INFO [stdout] 010355bd993456d0b8fcb7533eba69f575b8fd8b1fdee7eb46d65622fbe62a4a
Dec 17 11:23:52.238 INFO running `"docker" "start" "-a" "010355bd993456d0b8fcb7533eba69f575b8fd8b1fdee7eb46d65622fbe62a4a"`
Dec 17 11:23:54.075 INFO [stderr]     Checking shadow_cost_rust v0.1.0 (/opt/crater/workdir)
Dec 17 11:23:54.632 INFO [stderr] warning: variable does not need to be mutable
Dec 17 11:23:54.632 INFO [stderr]    --> src/lib.rs:294:17
Dec 17 11:23:54.632 INFO [stderr]     |
Dec 17 11:23:54.632 INFO [stderr] 294 |             let mut t = self.cache.get_mut(key).unwrap();
Dec 17 11:23:54.632 INFO [stderr]     |                 ----^
Dec 17 11:23:54.632 INFO [stderr]     |                 |
Dec 17 11:23:54.632 INFO [stderr]     |                 help: remove this `mut`
Dec 17 11:23:54.632 INFO [stderr]     |
Dec 17 11:23:54.652 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 11:23:54.652 INFO [stderr] 
Dec 17 11:23:54.724 INFO [stderr] warning: variable does not need to be mutable
Dec 17 11:23:54.724 INFO [stderr]    --> src/lib.rs:294:17
Dec 17 11:23:54.724 INFO [stderr]     |
Dec 17 11:23:54.724 INFO [stderr] 294 |             let mut t = self.cache.get_mut(key).unwrap();
Dec 17 11:23:54.724 INFO [stderr]     |                 ----^
Dec 17 11:23:54.724 INFO [stderr]     |                 |
Dec 17 11:23:54.724 INFO [stderr]     |                 help: remove this `mut`
Dec 17 11:23:54.724 INFO [stderr]     |
Dec 17 11:23:54.724 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 11:23:54.724 INFO [stderr] 
Dec 17 11:23:55.144 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
Dec 17 11:23:56.164 INFO running `"docker" "inspect" "010355bd993456d0b8fcb7533eba69f575b8fd8b1fdee7eb46d65622fbe62a4a"`
Dec 17 11:23:56.382 INFO running `"docker" "rm" "-f" "010355bd993456d0b8fcb7533eba69f575b8fd8b1fdee7eb46d65622fbe62a4a"`
Dec 17 11:23:56.624 INFO [stdout] 010355bd993456d0b8fcb7533eba69f575b8fd8b1fdee7eb46d65622fbe62a4a