Dec 18 14:14:36.004 INFO checking lru2-0.1.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 14:14:36.004 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/lru2/0.1.0:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 14:14:36.179 INFO [stdout] a8ae6b140ca27f8eb7eb9cec4fbcc5a9b57769bf2f2e1c5c70c065587cc00c95
Dec 18 14:14:36.182 INFO running `"docker" "start" "-a" "a8ae6b140ca27f8eb7eb9cec4fbcc5a9b57769bf2f2e1c5c70c065587cc00c95"`
Dec 18 14:14:36.800 INFO [stderr]     Checking lru2 v0.1.0 (/opt/crater/workdir)
Dec 18 14:14:37.118 INFO [stderr] warning: variable does not need to be mutable
Dec 18 14:14:37.118 INFO [stderr]   --> src/cache/mod.rs:57:13
Dec 18 14:14:37.118 INFO [stderr]    |
Dec 18 14:14:37.118 INFO [stderr] 57 |         let mut cache: &mut Register<C::LowerKey, C::Payload> = unsafe{ &mut **self.register.get(upper_key).unwrap() };
Dec 18 14:14:37.118 INFO [stderr]    |             ----^^^^^
Dec 18 14:14:37.118 INFO [stderr]    |             |
Dec 18 14:14:37.118 INFO [stderr]    |             help: remove this `mut`
Dec 18 14:14:37.118 INFO [stderr]    |
Dec 18 14:14:37.118 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 14:14:37.118 INFO [stderr] 
Dec 18 14:14:37.245 INFO [stderr] warning: variable does not need to be mutable
Dec 18 14:14:37.245 INFO [stderr]   --> src/cache/mod.rs:57:13
Dec 18 14:14:37.245 INFO [stderr]    |
Dec 18 14:14:37.245 INFO [stderr] 57 |         let mut cache: &mut Register<C::LowerKey, C::Payload> = unsafe{ &mut **self.register.get(upper_key).unwrap() };
Dec 18 14:14:37.245 INFO [stderr]    |             ----^^^^^
Dec 18 14:14:37.245 INFO [stderr]    |             |
Dec 18 14:14:37.245 INFO [stderr]    |             help: remove this `mut`
Dec 18 14:14:37.245 INFO [stderr]    |
Dec 18 14:14:37.245 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 14:14:37.245 INFO [stderr] 
Dec 18 14:14:37.285 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
Dec 18 14:14:37.514 INFO running `"docker" "inspect" "a8ae6b140ca27f8eb7eb9cec4fbcc5a9b57769bf2f2e1c5c70c065587cc00c95"`
Dec 18 14:14:37.621 INFO running `"docker" "rm" "-f" "a8ae6b140ca27f8eb7eb9cec4fbcc5a9b57769bf2f2e1c5c70c065587cc00c95"`
Dec 18 14:14:37.708 INFO [stdout] a8ae6b140ca27f8eb7eb9cec4fbcc5a9b57769bf2f2e1c5c70c065587cc00c95