Dec 18 01:24:07.417 INFO checking dewaka/chainmap against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 01:24:07.417 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/dewaka/chainmap:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 01:24:07.637 INFO [stdout] 03a0719ad5480997ea8fd0fd649630f5e3a8ab20fc4508e0bdf92fd40ebb3d38
Dec 18 01:24:07.639 INFO running `"docker" "start" "-a" "03a0719ad5480997ea8fd0fd649630f5e3a8ab20fc4508e0bdf92fd40ebb3d38"`
Dec 18 01:24:08.640 INFO [stderr]     Checking chainmap v0.1.0 (/opt/crater/workdir)
Dec 18 01:24:09.220 INFO [stderr] warning: variable does not need to be mutable
Dec 18 01:24:09.220 INFO [stderr]   --> src/example.rs:16:9
Dec 18 01:24:09.220 INFO [stderr]    |
Dec 18 01:24:09.220 INFO [stderr] 16 |     let mut clothing = HashMap::new();
Dec 18 01:24:09.220 INFO [stderr]    |         ----^^^^^^^^
Dec 18 01:24:09.220 INFO [stderr]    |         |
Dec 18 01:24:09.220 INFO [stderr]    |         help: remove this `mut`
Dec 18 01:24:09.220 INFO [stderr]    |
Dec 18 01:24:09.220 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 01:24:09.220 INFO [stderr] 
Dec 18 01:24:09.224 INFO [stderr] warning: method is never used: `insert`
Dec 18 01:24:09.224 INFO [stderr]   --> src/lib.rs:27:5
Dec 18 01:24:09.224 INFO [stderr]    |
Dec 18 01:24:09.224 INFO [stderr] 27 |     pub fn insert(&mut self, k: K, v: V) -> Option<V> {
Dec 18 01:24:09.224 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:24:09.224 INFO [stderr]    |
Dec 18 01:24:09.224 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 01:24:09.224 INFO [stderr] 
Dec 18 01:24:09.224 INFO [stderr] warning: method is never used: `is_empty`
Dec 18 01:24:09.224 INFO [stderr]   --> src/lib.rs:36:5
Dec 18 01:24:09.224 INFO [stderr]    |
Dec 18 01:24:09.225 INFO [stderr] 36 |     pub fn is_empty(&self) -> bool {
Dec 18 01:24:09.225 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:24:09.225 INFO [stderr] 
Dec 18 01:24:09.225 INFO [stderr] warning: method is never used: `empty`
Dec 18 01:24:09.225 INFO [stderr]   --> src/lib.rs:51:5
Dec 18 01:24:09.225 INFO [stderr]    |
Dec 18 01:24:09.225 INFO [stderr] 51 |     pub fn empty() -> Self {
Dec 18 01:24:09.225 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:24:09.225 INFO [stderr] 
Dec 18 01:24:09.225 INFO [stderr] warning: method is never used: `add_map`
Dec 18 01:24:09.225 INFO [stderr]   --> src/lib.rs:56:5
Dec 18 01:24:09.225 INFO [stderr]    |
Dec 18 01:24:09.225 INFO [stderr] 56 |     pub fn add_map(&mut self, m: ChainMapType<K, V>) -> &mut Self {
Dec 18 01:24:09.225 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:24:09.225 INFO [stderr] 
Dec 18 01:24:09.225 INFO [stderr] warning: method is never used: `to_map`
Dec 18 01:24:09.225 INFO [stderr]   --> src/lib.rs:64:5
Dec 18 01:24:09.225 INFO [stderr]    |
Dec 18 01:24:09.225 INFO [stderr] 64 |     pub fn to_map(&self) -> ChainMapType<K, V> {
Dec 18 01:24:09.225 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:24:09.225 INFO [stderr] 
Dec 18 01:24:09.225 INFO [stderr] warning: method is never used: `parents`
Dec 18 01:24:09.225 INFO [stderr]   --> src/lib.rs:78:5
Dec 18 01:24:09.225 INFO [stderr]    |
Dec 18 01:24:09.225 INFO [stderr] 78 |     pub fn parents(&self) -> Option<Self> {
Dec 18 01:24:09.225 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:24:09.225 INFO [stderr] 
Dec 18 01:24:09.225 INFO [stderr] warning: method is never used: `children`
Dec 18 01:24:09.225 INFO [stderr]   --> src/lib.rs:89:5
Dec 18 01:24:09.225 INFO [stderr]    |
Dec 18 01:24:09.225 INFO [stderr] 89 |     pub fn children(&self) -> Option<Self> {
Dec 18 01:24:09.225 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:24:09.225 INFO [stderr] 
Dec 18 01:24:09.260 INFO [stderr] warning: variable does not need to be mutable
Dec 18 01:24:09.260 INFO [stderr]   --> src/example.rs:16:9
Dec 18 01:24:09.260 INFO [stderr]    |
Dec 18 01:24:09.260 INFO [stderr] 16 |     let mut clothing = HashMap::new();
Dec 18 01:24:09.260 INFO [stderr]    |         ----^^^^^^^^
Dec 18 01:24:09.260 INFO [stderr]    |         |
Dec 18 01:24:09.260 INFO [stderr]    |         help: remove this `mut`
Dec 18 01:24:09.260 INFO [stderr]    |
Dec 18 01:24:09.260 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 01:24:09.260 INFO [stderr] 
Dec 18 01:24:09.332 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
Dec 18 01:24:09.582 INFO running `"docker" "inspect" "03a0719ad5480997ea8fd0fd649630f5e3a8ab20fc4508e0bdf92fd40ebb3d38"`
Dec 18 01:24:09.713 INFO running `"docker" "rm" "-f" "03a0719ad5480997ea8fd0fd649630f5e3a8ab20fc4508e0bdf92fd40ebb3d38"`
Dec 18 01:24:09.888 INFO [stdout] 03a0719ad5480997ea8fd0fd649630f5e3a8ab20fc4508e0bdf92fd40ebb3d38