Dec 12 16:38:14.655 INFO checking classifier-0.0.3 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 16:38:14.655 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 16:38:14.904 INFO [stdout] cd8a26c270a0636887b7a97ad25dd5e6262c84b6362e6bc9353eeb823e1b275f
Dec 12 16:38:14.907 INFO running `"docker" "start" "-a" "cd8a26c270a0636887b7a97ad25dd5e6262c84b6362e6bc9353eeb823e1b275f"`
Dec 12 16:38:15.576 INFO [stderr] usermod: no changes
Dec 12 16:38:15.668 INFO [stderr]     Checking classifier v0.0.3 (/source)
Dec 12 16:38:17.091 INFO [stderr] warning: variable does not need to be mutable
Dec 12 16:38:17.091 INFO [stderr]   --> src/naive_bayes.rs:51:13
Dec 12 16:38:17.092 INFO [stderr]    |
Dec 12 16:38:17.092 INFO [stderr] 51 |         let mut classification = self.classifications.get_mut(label).unwrap();
Dec 12 16:38:17.092 INFO [stderr]    |             ----^^^^^^^^^^^^^^
Dec 12 16:38:17.092 INFO [stderr]    |             |
Dec 12 16:38:17.092 INFO [stderr]    |             help: remove this `mut`
Dec 12 16:38:17.093 INFO [stderr]    |
Dec 12 16:38:17.093 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 16:38:17.093 INFO [stderr] 
Dec 12 16:38:17.484 INFO [stderr] warning: variable does not need to be mutable
Dec 12 16:38:17.484 INFO [stderr]   --> src/naive_bayes.rs:51:13
Dec 12 16:38:17.484 INFO [stderr]    |
Dec 12 16:38:17.484 INFO [stderr] 51 |         let mut classification = self.classifications.get_mut(label).unwrap();
Dec 12 16:38:17.484 INFO [stderr]    |             ----^^^^^^^^^^^^^^
Dec 12 16:38:17.484 INFO [stderr]    |             |
Dec 12 16:38:17.484 INFO [stderr]    |             help: remove this `mut`
Dec 12 16:38:17.484 INFO [stderr]    |
Dec 12 16:38:17.484 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 16:38:17.492 INFO [stderr] 
Dec 12 16:38:18.654 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.05s
Dec 12 16:38:18.664 INFO [stderr] su: No module specific data is present
Dec 12 16:38:19.069 INFO running `"docker" "inspect" "cd8a26c270a0636887b7a97ad25dd5e6262c84b6362e6bc9353eeb823e1b275f"`
Dec 12 16:38:19.172 INFO running `"docker" "rm" "-f" "cd8a26c270a0636887b7a97ad25dd5e6262c84b6362e6bc9353eeb823e1b275f"`
Dec 12 16:38:19.325 INFO [stdout] cd8a26c270a0636887b7a97ad25dd5e6262c84b6362e6bc9353eeb823e1b275f