Nov 30 19:14:49.650 INFO checking multimap-0.4.0 against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 19:14:49.650 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-7/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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"`
Nov 30 19:14:49.852 INFO [stdout] cd091859bc0cb1e39abaf6bb5994275f3af31923f5846d35989f9377ae385246
Nov 30 19:14:49.855 INFO running `"docker" "start" "-a" "cd091859bc0cb1e39abaf6bb5994275f3af31923f5846d35989f9377ae385246"`
Nov 30 19:14:50.314 INFO [stderr] usermod: no changes
Nov 30 19:14:50.369 INFO [stderr]     Checking multimap v0.4.0 (/source)
Nov 30 19:14:51.180 INFO [stderr] warning: variable does not need to be mutable
Nov 30 19:14:51.182 INFO [stderr]    --> src/lib.rs:249:36
Nov 30 19:14:51.182 INFO [stderr]     |
Nov 30 19:14:51.182 INFO [stderr] 249 |         self.inner.get_mut(k).map(|mut v| v.get_mut(0).unwrap())
Nov 30 19:14:51.182 INFO [stderr]     |                                    ----^
Nov 30 19:14:51.182 INFO [stderr]     |                                    |
Nov 30 19:14:51.182 INFO [stderr]     |                                    help: remove this `mut`
Nov 30 19:14:51.182 INFO [stderr]     |
Nov 30 19:14:51.182 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 19:14:51.182 INFO [stderr] 
Nov 30 19:14:51.182 INFO [stderr] warning: variable does not need to be mutable
Nov 30 19:14:51.182 INFO [stderr]    --> src/lib.rs:590:18
Nov 30 19:14:51.183 INFO [stderr]     |
Nov 30 19:14:51.183 INFO [stderr] 590 |     fn into_iter(mut self) -> IterAllMut<'a, K, Vec<V>> {
Nov 30 19:14:51.183 INFO [stderr]     |                  ----^^^^
Nov 30 19:14:51.183 INFO [stderr]     |                  |
Nov 30 19:14:51.183 INFO [stderr]     |                  help: remove this `mut`
Nov 30 19:14:51.183 INFO [stderr] 
Nov 30 19:14:51.541 INFO [stderr] warning: variable does not need to be mutable
Nov 30 19:14:51.542 INFO [stderr]    --> src/lib.rs:249:36
Nov 30 19:14:51.542 INFO [stderr]     |
Nov 30 19:14:51.542 INFO [stderr] 249 |         self.inner.get_mut(k).map(|mut v| v.get_mut(0).unwrap())
Nov 30 19:14:51.542 INFO [stderr]     |                                    ----^
Nov 30 19:14:51.542 INFO [stderr]     |                                    |
Nov 30 19:14:51.543 INFO [stderr]     |                                    help: remove this `mut`
Nov 30 19:14:51.543 INFO [stderr]     |
Nov 30 19:14:51.543 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 19:14:51.543 INFO [stderr] 
Nov 30 19:14:51.553 INFO [stderr] warning: variable does not need to be mutable
Nov 30 19:14:51.553 INFO [stderr]    --> src/lib.rs:590:18
Nov 30 19:14:51.553 INFO [stderr]     |
Nov 30 19:14:51.554 INFO [stderr] 590 |     fn into_iter(mut self) -> IterAllMut<'a, K, Vec<V>> {
Nov 30 19:14:51.554 INFO [stderr]     |                  ----^^^^
Nov 30 19:14:51.554 INFO [stderr]     |                  |
Nov 30 19:14:51.554 INFO [stderr]     |                  help: remove this `mut`
Nov 30 19:14:51.554 INFO [stderr] 
Nov 30 19:14:51.639 INFO [stderr] warning: variable does not need to be mutable
Nov 30 19:14:51.639 INFO [stderr]     --> src/lib.rs:1112:17
Nov 30 19:14:51.639 INFO [stderr]      |
Nov 30 19:14:51.639 INFO [stderr] 1112 |             let mut v = m.entry(1).or_insert(43);
Nov 30 19:14:51.639 INFO [stderr]      |                 ----^
Nov 30 19:14:51.639 INFO [stderr]      |                 |
Nov 30 19:14:51.639 INFO [stderr]      |                 help: remove this `mut`
Nov 30 19:14:51.639 INFO [stderr] 
Nov 30 19:14:51.644 INFO [stderr] warning: variable does not need to be mutable
Nov 30 19:14:51.644 INFO [stderr]     --> src/lib.rs:1128:17
Nov 30 19:14:51.644 INFO [stderr]      |
Nov 30 19:14:51.644 INFO [stderr] 1128 |             let mut v = m.entry(1).or_insert_vec(vec![43]);
Nov 30 19:14:51.644 INFO [stderr]      |                 ----^
Nov 30 19:14:51.644 INFO [stderr]      |                 |
Nov 30 19:14:51.644 INFO [stderr]      |                 help: remove this `mut`
Nov 30 19:14:51.644 INFO [stderr] 
Nov 30 19:14:51.711 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
Nov 30 19:14:51.711 INFO [stderr] su: No module specific data is present
Nov 30 19:14:52.034 INFO running `"docker" "inspect" "cd091859bc0cb1e39abaf6bb5994275f3af31923f5846d35989f9377ae385246"`
Nov 30 19:14:52.158 INFO running `"docker" "rm" "-f" "cd091859bc0cb1e39abaf6bb5994275f3af31923f5846d35989f9377ae385246"`
Nov 30 19:14:52.291 INFO [stdout] cd091859bc0cb1e39abaf6bb5994275f3af31923f5846d35989f9377ae385246