Dec 12 17:55:02.922 INFO checking attr-0.1.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 17:55:02.922 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 17:55:03.212 INFO [stdout] 6ddeb24fc340c75fdffef1efd9687513d66fcd81b6b40c6a7daf93b3b83d5604
Dec 12 17:55:03.216 INFO running `"docker" "start" "-a" "6ddeb24fc340c75fdffef1efd9687513d66fcd81b6b40c6a7daf93b3b83d5604"`
Dec 12 17:55:04.012 INFO [stderr] usermod: no changes
Dec 12 17:55:04.054 INFO [stderr] warning: only one of `license` or `license-file` is necessary
Dec 12 17:55:04.095 INFO [stderr]     Checking attr v0.1.0 (/source)
Dec 12 17:55:07.008 INFO [stderr] warning: variable does not need to be mutable
Dec 12 17:55:07.008 INFO [stderr]    --> tests/simple.rs:108:9
Dec 12 17:55:07.008 INFO [stderr]     |
Dec 12 17:55:07.008 INFO [stderr] 108 |     let mut batz = Bar::attrs().batz.get(&mut f);
Dec 12 17:55:07.008 INFO [stderr]     |         ----^^^^
Dec 12 17:55:07.008 INFO [stderr]     |         |
Dec 12 17:55:07.008 INFO [stderr]     |         help: remove this `mut`
Dec 12 17:55:07.020 INFO [stderr]     |
Dec 12 17:55:07.020 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 17:55:07.020 INFO [stderr] 
Dec 12 17:55:07.064 INFO [stderr] warning: variable does not need to be mutable
Dec 12 17:55:07.064 INFO [stderr]    --> tests/nested.rs:252:13
Dec 12 17:55:07.064 INFO [stderr]     |
Dec 12 17:55:07.064 INFO [stderr] 252 |         let mut x: &mut i32 = foo::Numbers.at(&mut f, 1);
Dec 12 17:55:07.064 INFO [stderr]     |             ----^
Dec 12 17:55:07.064 INFO [stderr]     |             |
Dec 12 17:55:07.064 INFO [stderr]     |             help: remove this `mut`
Dec 12 17:55:07.064 INFO [stderr]     |
Dec 12 17:55:07.064 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 17:55:07.064 INFO [stderr] 
Dec 12 17:55:07.297 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.26s
Dec 12 17:55:07.310 INFO [stderr] su: No module specific data is present
Dec 12 17:55:07.661 INFO running `"docker" "inspect" "6ddeb24fc340c75fdffef1efd9687513d66fcd81b6b40c6a7daf93b3b83d5604"`
Dec 12 17:55:07.774 INFO running `"docker" "rm" "-f" "6ddeb24fc340c75fdffef1efd9687513d66fcd81b6b40c6a7daf93b3b83d5604"`
Dec 12 17:55:07.856 INFO [stdout] 6ddeb24fc340c75fdffef1efd9687513d66fcd81b6b40c6a7daf93b3b83d5604