Nov 28 21:49:15.380 INFO checking multimap-0.4.0 against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 21:49:15.380 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-0/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 28 21:49:15.612 INFO [stdout] d78ce5c031714509792f79a397e739377e07c050fcc3de78eddc459161554045
Nov 28 21:49:15.615 INFO running `"docker" "start" "-a" "d78ce5c031714509792f79a397e739377e07c050fcc3de78eddc459161554045"`
Nov 28 21:49:16.114 INFO [stderr] usermod: no changes
Nov 28 21:49:16.156 INFO [stderr]     Checking multimap v0.4.0 (/source)
Nov 28 21:49:16.780 INFO [stderr] warning: variable does not need to be mutable
Nov 28 21:49:16.780 INFO [stderr]    --> src/lib.rs:249:36
Nov 28 21:49:16.780 INFO [stderr]     |
Nov 28 21:49:16.780 INFO [stderr] 249 |         self.inner.get_mut(k).map(|mut v| v.get_mut(0).unwrap())
Nov 28 21:49:16.781 INFO [stderr]     |                                    ----^
Nov 28 21:49:16.781 INFO [stderr]     |                                    |
Nov 28 21:49:16.781 INFO [stderr]     |                                    help: remove this `mut`
Nov 28 21:49:16.781 INFO [stderr]     |
Nov 28 21:49:16.781 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 21:49:16.781 INFO [stderr] 
Nov 28 21:49:16.781 INFO [stderr] warning: variable does not need to be mutable
Nov 28 21:49:16.781 INFO [stderr]    --> src/lib.rs:590:18
Nov 28 21:49:16.781 INFO [stderr]     |
Nov 28 21:49:16.781 INFO [stderr] 590 |     fn into_iter(mut self) -> IterAllMut<'a, K, Vec<V>> {
Nov 28 21:49:16.781 INFO [stderr]     |                  ----^^^^
Nov 28 21:49:16.781 INFO [stderr]     |                  |
Nov 28 21:49:16.781 INFO [stderr]     |                  help: remove this `mut`
Nov 28 21:49:16.781 INFO [stderr] 
Nov 28 21:49:17.288 INFO [stderr] warning: variable does not need to be mutable
Nov 28 21:49:17.288 INFO [stderr]    --> src/lib.rs:249:36
Nov 28 21:49:17.288 INFO [stderr]     |
Nov 28 21:49:17.288 INFO [stderr] 249 |         self.inner.get_mut(k).map(|mut v| v.get_mut(0).unwrap())
Nov 28 21:49:17.288 INFO [stderr]     |                                    ----^
Nov 28 21:49:17.288 INFO [stderr]     |                                    |
Nov 28 21:49:17.288 INFO [stderr]     |                                    help: remove this `mut`
Nov 28 21:49:17.288 INFO [stderr]     |
Nov 28 21:49:17.288 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 21:49:17.288 INFO [stderr] 
Nov 28 21:49:17.300 INFO [stderr] warning: variable does not need to be mutable
Nov 28 21:49:17.300 INFO [stderr]    --> src/lib.rs:590:18
Nov 28 21:49:17.300 INFO [stderr]     |
Nov 28 21:49:17.300 INFO [stderr] 590 |     fn into_iter(mut self) -> IterAllMut<'a, K, Vec<V>> {
Nov 28 21:49:17.300 INFO [stderr]     |                  ----^^^^
Nov 28 21:49:17.300 INFO [stderr]     |                  |
Nov 28 21:49:17.300 INFO [stderr]     |                  help: remove this `mut`
Nov 28 21:49:17.300 INFO [stderr] 
Nov 28 21:49:17.396 INFO [stderr] warning: variable does not need to be mutable
Nov 28 21:49:17.396 INFO [stderr]     --> src/lib.rs:1112:17
Nov 28 21:49:17.396 INFO [stderr]      |
Nov 28 21:49:17.396 INFO [stderr] 1112 |             let mut v = m.entry(1).or_insert(43);
Nov 28 21:49:17.396 INFO [stderr]      |                 ----^
Nov 28 21:49:17.396 INFO [stderr]      |                 |
Nov 28 21:49:17.396 INFO [stderr]      |                 help: remove this `mut`
Nov 28 21:49:17.396 INFO [stderr] 
Nov 28 21:49:17.400 INFO [stderr] warning: variable does not need to be mutable
Nov 28 21:49:17.400 INFO [stderr]     --> src/lib.rs:1128:17
Nov 28 21:49:17.400 INFO [stderr]      |
Nov 28 21:49:17.400 INFO [stderr] 1128 |             let mut v = m.entry(1).or_insert_vec(vec![43]);
Nov 28 21:49:17.400 INFO [stderr]      |                 ----^
Nov 28 21:49:17.400 INFO [stderr]      |                 |
Nov 28 21:49:17.400 INFO [stderr]      |                 help: remove this `mut`
Nov 28 21:49:17.400 INFO [stderr] 
Nov 28 21:49:17.461 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.33s
Nov 28 21:49:17.462 INFO [stderr] su: No module specific data is present
Nov 28 21:49:18.194 INFO running `"docker" "inspect" "d78ce5c031714509792f79a397e739377e07c050fcc3de78eddc459161554045"`
Nov 28 21:49:18.296 INFO running `"docker" "rm" "-f" "d78ce5c031714509792f79a397e739377e07c050fcc3de78eddc459161554045"`
Nov 28 21:49:18.395 INFO [stdout] d78ce5c031714509792f79a397e739377e07c050fcc3de78eddc459161554045