Dec 18 01:24:07.506 INFO checking dewaka/chainmap against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 01:24:07.506 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 01:24:07.750 INFO [stdout] b0affc563b01405e3947f5889169d71228f6d942d2885a23612ddc0a4a0327da
Dec 18 01:24:07.754 INFO running `"docker" "start" "-a" "b0affc563b01405e3947f5889169d71228f6d942d2885a23612ddc0a4a0327da"`
Dec 18 01:24:08.722 INFO [stderr]     Checking chainmap v0.1.0 (/opt/crater/workdir)
Dec 18 01:24:09.246 INFO [stderr] warning: variable does not need to be mutable
Dec 18 01:24:09.247 INFO [stderr]   --> src/example.rs:16:9
Dec 18 01:24:09.247 INFO [stderr]    |
Dec 18 01:24:09.247 INFO [stderr] 16 |     let mut clothing = HashMap::new();
Dec 18 01:24:09.247 INFO [stderr]    |         ----^^^^^^^^
Dec 18 01:24:09.247 INFO [stderr]    |         |
Dec 18 01:24:09.247 INFO [stderr]    |         help: remove this `mut`
Dec 18 01:24:09.247 INFO [stderr]    |
Dec 18 01:24:09.247 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 01:24:09.247 INFO [stderr] 
Dec 18 01:24:09.249 INFO [stderr] warning: method is never used: `insert`
Dec 18 01:24:09.249 INFO [stderr]   --> src/lib.rs:27:5
Dec 18 01:24:09.249 INFO [stderr]    |
Dec 18 01:24:09.249 INFO [stderr] 27 |     pub fn insert(&mut self, k: K, v: V) -> Option<V> {
Dec 18 01:24:09.249 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:24:09.249 INFO [stderr]    |
Dec 18 01:24:09.249 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 01:24:09.249 INFO [stderr] 
Dec 18 01:24:09.249 INFO [stderr] warning: method is never used: `is_empty`
Dec 18 01:24:09.249 INFO [stderr]   --> src/lib.rs:36:5
Dec 18 01:24:09.249 INFO [stderr]    |
Dec 18 01:24:09.249 INFO [stderr] 36 |     pub fn is_empty(&self) -> bool {
Dec 18 01:24:09.249 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:24:09.249 INFO [stderr] 
Dec 18 01:24:09.250 INFO [stderr] warning: method is never used: `empty`
Dec 18 01:24:09.250 INFO [stderr]   --> src/lib.rs:51:5
Dec 18 01:24:09.250 INFO [stderr]    |
Dec 18 01:24:09.250 INFO [stderr] 51 |     pub fn empty() -> Self {
Dec 18 01:24:09.250 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:24:09.250 INFO [stderr] 
Dec 18 01:24:09.250 INFO [stderr] warning: method is never used: `add_map`
Dec 18 01:24:09.250 INFO [stderr]   --> src/lib.rs:56:5
Dec 18 01:24:09.250 INFO [stderr]    |
Dec 18 01:24:09.250 INFO [stderr] 56 |     pub fn add_map(&mut self, m: ChainMapType<K, V>) -> &mut Self {
Dec 18 01:24:09.250 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:24:09.250 INFO [stderr] 
Dec 18 01:24:09.250 INFO [stderr] warning: method is never used: `to_map`
Dec 18 01:24:09.250 INFO [stderr]   --> src/lib.rs:64:5
Dec 18 01:24:09.250 INFO [stderr]    |
Dec 18 01:24:09.250 INFO [stderr] 64 |     pub fn to_map(&self) -> ChainMapType<K, V> {
Dec 18 01:24:09.250 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:24:09.250 INFO [stderr] 
Dec 18 01:24:09.250 INFO [stderr] warning: method is never used: `parents`
Dec 18 01:24:09.250 INFO [stderr]   --> src/lib.rs:78:5
Dec 18 01:24:09.250 INFO [stderr]    |
Dec 18 01:24:09.250 INFO [stderr] 78 |     pub fn parents(&self) -> Option<Self> {
Dec 18 01:24:09.250 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:24:09.250 INFO [stderr] 
Dec 18 01:24:09.250 INFO [stderr] warning: method is never used: `children`
Dec 18 01:24:09.250 INFO [stderr]   --> src/lib.rs:89:5
Dec 18 01:24:09.250 INFO [stderr]    |
Dec 18 01:24:09.250 INFO [stderr] 89 |     pub fn children(&self) -> Option<Self> {
Dec 18 01:24:09.250 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:24:09.250 INFO [stderr] 
Dec 18 01:24:09.363 INFO [stderr] warning: variable does not need to be mutable
Dec 18 01:24:09.363 INFO [stderr]   --> src/example.rs:16:9
Dec 18 01:24:09.363 INFO [stderr]    |
Dec 18 01:24:09.363 INFO [stderr] 16 |     let mut clothing = HashMap::new();
Dec 18 01:24:09.363 INFO [stderr]    |         ----^^^^^^^^
Dec 18 01:24:09.363 INFO [stderr]    |         |
Dec 18 01:24:09.363 INFO [stderr]    |         help: remove this `mut`
Dec 18 01:24:09.363 INFO [stderr]    |
Dec 18 01:24:09.363 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 01:24:09.363 INFO [stderr] 
Dec 18 01:24:09.423 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
Dec 18 01:24:09.675 INFO running `"docker" "inspect" "b0affc563b01405e3947f5889169d71228f6d942d2885a23612ddc0a4a0327da"`
Dec 18 01:24:09.774 INFO running `"docker" "rm" "-f" "b0affc563b01405e3947f5889169d71228f6d942d2885a23612ddc0a4a0327da"`
Dec 18 01:24:09.966 INFO [stdout] b0affc563b01405e3947f5889169d71228f6d942d2885a23612ddc0a4a0327da