Dec 19 18:01:02.767 INFO checking dewaka/chainmap against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 18:01:02.767 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 18:01:02.956 INFO [stdout] ca3ae6fdfb793161f9a1c55dc178e45012f6ee7655c204763de40876a50945c8
Dec 19 18:01:02.959 INFO running `"docker" "start" "-a" "ca3ae6fdfb793161f9a1c55dc178e45012f6ee7655c204763de40876a50945c8"`
Dec 19 18:01:03.716 INFO [stderr]     Checking chainmap v0.1.0 (/opt/crater/workdir)
Dec 19 18:01:04.376 INFO [stderr] warning: variable does not need to be mutable
Dec 19 18:01:04.376 INFO [stderr]   --> src/example.rs:16:9
Dec 19 18:01:04.376 INFO [stderr]    |
Dec 19 18:01:04.376 INFO [stderr] 16 |     let mut clothing = HashMap::new();
Dec 19 18:01:04.376 INFO [stderr]    |         ----^^^^^^^^
Dec 19 18:01:04.376 INFO [stderr]    |         |
Dec 19 18:01:04.376 INFO [stderr]    |         help: remove this `mut`
Dec 19 18:01:04.376 INFO [stderr]    |
Dec 19 18:01:04.376 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 18:01:04.376 INFO [stderr] 
Dec 19 18:01:04.396 INFO [stderr] warning: method is never used: `insert`
Dec 19 18:01:04.396 INFO [stderr]   --> src/lib.rs:27:5
Dec 19 18:01:04.396 INFO [stderr]    |
Dec 19 18:01:04.396 INFO [stderr] 27 |     pub fn insert(&mut self, k: K, v: V) -> Option<V> {
Dec 19 18:01:04.396 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:01:04.396 INFO [stderr]    |
Dec 19 18:01:04.396 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 18:01:04.396 INFO [stderr] 
Dec 19 18:01:04.397 INFO [stderr] warning: method is never used: `is_empty`
Dec 19 18:01:04.397 INFO [stderr]   --> src/lib.rs:36:5
Dec 19 18:01:04.397 INFO [stderr]    |
Dec 19 18:01:04.397 INFO [stderr] 36 |     pub fn is_empty(&self) -> bool {
Dec 19 18:01:04.397 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:01:04.397 INFO [stderr] 
Dec 19 18:01:04.397 INFO [stderr] warning: method is never used: `empty`
Dec 19 18:01:04.397 INFO [stderr]   --> src/lib.rs:51:5
Dec 19 18:01:04.397 INFO [stderr]    |
Dec 19 18:01:04.397 INFO [stderr] 51 |     pub fn empty() -> Self {
Dec 19 18:01:04.397 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:01:04.397 INFO [stderr] 
Dec 19 18:01:04.397 INFO [stderr] warning: method is never used: `add_map`
Dec 19 18:01:04.397 INFO [stderr]   --> src/lib.rs:56:5
Dec 19 18:01:04.397 INFO [stderr]    |
Dec 19 18:01:04.397 INFO [stderr] 56 |     pub fn add_map(&mut self, m: ChainMapType<K, V>) -> &mut Self {
Dec 19 18:01:04.397 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:01:04.397 INFO [stderr] 
Dec 19 18:01:04.397 INFO [stderr] warning: method is never used: `to_map`
Dec 19 18:01:04.397 INFO [stderr]   --> src/lib.rs:64:5
Dec 19 18:01:04.397 INFO [stderr]    |
Dec 19 18:01:04.397 INFO [stderr] 64 |     pub fn to_map(&self) -> ChainMapType<K, V> {
Dec 19 18:01:04.397 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:01:04.397 INFO [stderr] 
Dec 19 18:01:04.397 INFO [stderr] warning: method is never used: `parents`
Dec 19 18:01:04.397 INFO [stderr]   --> src/lib.rs:78:5
Dec 19 18:01:04.397 INFO [stderr]    |
Dec 19 18:01:04.397 INFO [stderr] 78 |     pub fn parents(&self) -> Option<Self> {
Dec 19 18:01:04.397 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:01:04.397 INFO [stderr] 
Dec 19 18:01:04.397 INFO [stderr] warning: method is never used: `children`
Dec 19 18:01:04.397 INFO [stderr]   --> src/lib.rs:89:5
Dec 19 18:01:04.397 INFO [stderr]    |
Dec 19 18:01:04.397 INFO [stderr] 89 |     pub fn children(&self) -> Option<Self> {
Dec 19 18:01:04.397 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:01:04.397 INFO [stderr] 
Dec 19 18:01:04.568 INFO [stderr] warning: variable does not need to be mutable
Dec 19 18:01:04.568 INFO [stderr]   --> src/example.rs:16:9
Dec 19 18:01:04.568 INFO [stderr]    |
Dec 19 18:01:04.568 INFO [stderr] 16 |     let mut clothing = HashMap::new();
Dec 19 18:01:04.568 INFO [stderr]    |         ----^^^^^^^^
Dec 19 18:01:04.568 INFO [stderr]    |         |
Dec 19 18:01:04.568 INFO [stderr]    |         help: remove this `mut`
Dec 19 18:01:04.568 INFO [stderr]    |
Dec 19 18:01:04.568 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 18:01:04.568 INFO [stderr] 
Dec 19 18:01:04.638 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
Dec 19 18:01:05.151 INFO running `"docker" "inspect" "ca3ae6fdfb793161f9a1c55dc178e45012f6ee7655c204763de40876a50945c8"`
Dec 19 18:01:05.273 INFO running `"docker" "rm" "-f" "ca3ae6fdfb793161f9a1c55dc178e45012f6ee7655c204763de40876a50945c8"`
Dec 19 18:01:05.513 INFO [stdout] ca3ae6fdfb793161f9a1c55dc178e45012f6ee7655c204763de40876a50945c8