Dec 05 10:45:28.276 INFO checking lru2-0.1.0 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 10:45:28.276 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 05 10:45:28.440 INFO [stdout] 13561617d9bb9ab58023634c29353bc3c6267b9f3852bf88ed81797df072aa29
Dec 05 10:45:28.443 INFO running `"docker" "start" "-a" "13561617d9bb9ab58023634c29353bc3c6267b9f3852bf88ed81797df072aa29"`
Dec 05 10:45:28.819 INFO [stderr] usermod: no changes
Dec 05 10:45:28.856 INFO [stderr]     Checking lru2 v0.1.0 (/source)
Dec 05 10:45:29.371 INFO [stderr] warning: variable does not need to be mutable
Dec 05 10:45:29.371 INFO [stderr]   --> src/cache/mod.rs:57:13
Dec 05 10:45:29.371 INFO [stderr]    |
Dec 05 10:45:29.371 INFO [stderr] 57 |         let mut cache: &mut Register<C::LowerKey, C::Payload> = unsafe{ &mut **self.register.get(upper_key).unwrap() };
Dec 05 10:45:29.372 INFO [stderr]    |             ----^^^^^
Dec 05 10:45:29.372 INFO [stderr]    |             |
Dec 05 10:45:29.372 INFO [stderr]    |             help: remove this `mut`
Dec 05 10:45:29.372 INFO [stderr]    |
Dec 05 10:45:29.372 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 10:45:29.372 INFO [stderr] 
Dec 05 10:45:29.855 INFO [stderr] warning: variable does not need to be mutable
Dec 05 10:45:29.855 INFO [stderr]   --> src/cache/mod.rs:57:13
Dec 05 10:45:29.855 INFO [stderr]    |
Dec 05 10:45:29.856 INFO [stderr] 57 |         let mut cache: &mut Register<C::LowerKey, C::Payload> = unsafe{ &mut **self.register.get(upper_key).unwrap() };
Dec 05 10:45:29.856 INFO [stderr]    |             ----^^^^^
Dec 05 10:45:29.856 INFO [stderr]    |             |
Dec 05 10:45:29.856 INFO [stderr]    |             help: remove this `mut`
Dec 05 10:45:29.857 INFO [stderr]    |
Dec 05 10:45:29.857 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 10:45:29.857 INFO [stderr] 
Dec 05 10:45:29.899 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
Dec 05 10:45:29.903 INFO [stderr] su: No module specific data is present
Dec 05 10:45:30.243 INFO running `"docker" "inspect" "13561617d9bb9ab58023634c29353bc3c6267b9f3852bf88ed81797df072aa29"`
Dec 05 10:45:30.344 INFO running `"docker" "rm" "-f" "13561617d9bb9ab58023634c29353bc3c6267b9f3852bf88ed81797df072aa29"`
Dec 05 10:45:30.452 INFO [stdout] 13561617d9bb9ab58023634c29353bc3c6267b9f3852bf88ed81797df072aa29