Nov 30 19:14:49.619 INFO checking multimap-0.4.0 against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 19:14:49.619 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-1/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 19:14:49.815 INFO [stdout] 58c4fcbc222075ac96c336da6edb384358f031ae6c5eec48dbf66a25f14417fa
Nov 30 19:14:49.818 INFO running `"docker" "start" "-a" "58c4fcbc222075ac96c336da6edb384358f031ae6c5eec48dbf66a25f14417fa"`
Nov 30 19:14:50.368 INFO [stderr] usermod: no changes
Nov 30 19:14:50.416 INFO [stderr]     Checking multimap v0.4.0 (/source)
Nov 30 19:14:51.148 INFO [stderr] warning: variable does not need to be mutable
Nov 30 19:14:51.148 INFO [stderr]    --> src/lib.rs:249:36
Nov 30 19:14:51.148 INFO [stderr]     |
Nov 30 19:14:51.148 INFO [stderr] 249 |         self.inner.get_mut(k).map(|mut v| v.get_mut(0).unwrap())
Nov 30 19:14:51.148 INFO [stderr]     |                                    ----^
Nov 30 19:14:51.148 INFO [stderr]     |                                    |
Nov 30 19:14:51.148 INFO [stderr]     |                                    help: remove this `mut`
Nov 30 19:14:51.148 INFO [stderr]     |
Nov 30 19:14:51.148 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 19:14:51.148 INFO [stderr] 
Nov 30 19:14:51.156 INFO [stderr] warning: variable does not need to be mutable
Nov 30 19:14:51.156 INFO [stderr]    --> src/lib.rs:590:18
Nov 30 19:14:51.156 INFO [stderr]     |
Nov 30 19:14:51.156 INFO [stderr] 590 |     fn into_iter(mut self) -> IterAllMut<'a, K, Vec<V>> {
Nov 30 19:14:51.156 INFO [stderr]     |                  ----^^^^
Nov 30 19:14:51.156 INFO [stderr]     |                  |
Nov 30 19:14:51.156 INFO [stderr]     |                  help: remove this `mut`
Nov 30 19:14:51.160 INFO [stderr] 
Nov 30 19:14:51.619 INFO [stderr] warning: variable does not need to be mutable
Nov 30 19:14:51.619 INFO [stderr]    --> src/lib.rs:249:36
Nov 30 19:14:51.619 INFO [stderr]     |
Nov 30 19:14:51.619 INFO [stderr] 249 |         self.inner.get_mut(k).map(|mut v| v.get_mut(0).unwrap())
Nov 30 19:14:51.628 INFO [stderr]     |                                    ----^
Nov 30 19:14:51.628 INFO [stderr]     |                                    |
Nov 30 19:14:51.628 INFO [stderr]     |                                    help: remove this `mut`
Nov 30 19:14:51.628 INFO [stderr]     |
Nov 30 19:14:51.628 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 19:14:51.628 INFO [stderr] 
Nov 30 19:14:51.640 INFO [stderr] warning: variable does not need to be mutable
Nov 30 19:14:51.640 INFO [stderr]    --> src/lib.rs:590:18
Nov 30 19:14:51.640 INFO [stderr]     |
Nov 30 19:14:51.640 INFO [stderr] 590 |     fn into_iter(mut self) -> IterAllMut<'a, K, Vec<V>> {
Nov 30 19:14:51.640 INFO [stderr]     |                  ----^^^^
Nov 30 19:14:51.640 INFO [stderr]     |                  |
Nov 30 19:14:51.640 INFO [stderr]     |                  help: remove this `mut`
Nov 30 19:14:51.640 INFO [stderr] 
Nov 30 19:14:51.712 INFO [stderr] warning: variable does not need to be mutable
Nov 30 19:14:51.712 INFO [stderr]     --> src/lib.rs:1112:17
Nov 30 19:14:51.712 INFO [stderr]      |
Nov 30 19:14:51.712 INFO [stderr] 1112 |             let mut v = m.entry(1).or_insert(43);
Nov 30 19:14:51.712 INFO [stderr]      |                 ----^
Nov 30 19:14:51.712 INFO [stderr]      |                 |
Nov 30 19:14:51.712 INFO [stderr]      |                 help: remove this `mut`
Nov 30 19:14:51.712 INFO [stderr] 
Nov 30 19:14:51.713 INFO [stderr] warning: variable does not need to be mutable
Nov 30 19:14:51.713 INFO [stderr]     --> src/lib.rs:1128:17
Nov 30 19:14:51.713 INFO [stderr]      |
Nov 30 19:14:51.713 INFO [stderr] 1128 |             let mut v = m.entry(1).or_insert_vec(vec![43]);
Nov 30 19:14:51.713 INFO [stderr]      |                 ----^
Nov 30 19:14:51.713 INFO [stderr]      |                 |
Nov 30 19:14:51.714 INFO [stderr]      |                 help: remove this `mut`
Nov 30 19:14:51.714 INFO [stderr] 
Nov 30 19:14:51.761 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
Nov 30 19:14:51.762 INFO [stderr] su: No module specific data is present
Nov 30 19:14:52.069 INFO running `"docker" "inspect" "58c4fcbc222075ac96c336da6edb384358f031ae6c5eec48dbf66a25f14417fa"`
Nov 30 19:14:52.192 INFO running `"docker" "rm" "-f" "58c4fcbc222075ac96c336da6edb384358f031ae6c5eec48dbf66a25f14417fa"`
Nov 30 19:14:52.407 INFO [stdout] 58c4fcbc222075ac96c336da6edb384358f031ae6c5eec48dbf66a25f14417fa