Nov 28 06:37:06.716 INFO checking dewaka/chainmap against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 06:37:06.716 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-7/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 06:37:07.216 INFO [stdout] 3c1a8ad88a049e4b1cc3b03c3b5454c47dbaec046481c3da4cc04db64f07311e
Nov 28 06:37:07.218 INFO running `"docker" "start" "-a" "3c1a8ad88a049e4b1cc3b03c3b5454c47dbaec046481c3da4cc04db64f07311e"`
Nov 28 06:37:08.040 INFO [stderr] usermod: no changes
Nov 28 06:37:08.092 INFO [stderr]     Checking chainmap v0.1.0 (/source)
Nov 28 06:37:09.368 INFO [stderr] warning: variable does not need to be mutable
Nov 28 06:37:09.369 INFO [stderr]   --> src/example.rs:16:9
Nov 28 06:37:09.369 INFO [stderr]    |
Nov 28 06:37:09.369 INFO [stderr] 16 |     let mut clothing = HashMap::new();
Nov 28 06:37:09.369 INFO [stderr]    |         ----^^^^^^^^
Nov 28 06:37:09.369 INFO [stderr]    |         |
Nov 28 06:37:09.369 INFO [stderr]    |         help: remove this `mut`
Nov 28 06:37:09.369 INFO [stderr]    |
Nov 28 06:37:09.369 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 06:37:09.369 INFO [stderr] 
Nov 28 06:37:09.381 INFO [stderr] warning: method is never used: `insert`
Nov 28 06:37:09.381 INFO [stderr]   --> src/lib.rs:27:5
Nov 28 06:37:09.381 INFO [stderr]    |
Nov 28 06:37:09.381 INFO [stderr] 27 |     pub fn insert(&mut self, k: K, v: V) -> Option<V> {
Nov 28 06:37:09.381 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 06:37:09.381 INFO [stderr]    |
Nov 28 06:37:09.381 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 06:37:09.381 INFO [stderr] 
Nov 28 06:37:09.381 INFO [stderr] warning: method is never used: `is_empty`
Nov 28 06:37:09.381 INFO [stderr]   --> src/lib.rs:36:5
Nov 28 06:37:09.381 INFO [stderr]    |
Nov 28 06:37:09.381 INFO [stderr] 36 |     pub fn is_empty(&self) -> bool {
Nov 28 06:37:09.381 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 06:37:09.381 INFO [stderr] 
Nov 28 06:37:09.381 INFO [stderr] warning: method is never used: `empty`
Nov 28 06:37:09.381 INFO [stderr]   --> src/lib.rs:51:5
Nov 28 06:37:09.381 INFO [stderr]    |
Nov 28 06:37:09.381 INFO [stderr] 51 |     pub fn empty() -> Self {
Nov 28 06:37:09.381 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Nov 28 06:37:09.382 INFO [stderr] 
Nov 28 06:37:09.382 INFO [stderr] warning: method is never used: `add_map`
Nov 28 06:37:09.382 INFO [stderr]   --> src/lib.rs:56:5
Nov 28 06:37:09.382 INFO [stderr]    |
Nov 28 06:37:09.382 INFO [stderr] 56 |     pub fn add_map(&mut self, m: ChainMapType<K, V>) -> &mut Self {
Nov 28 06:37:09.382 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 06:37:09.382 INFO [stderr] 
Nov 28 06:37:09.382 INFO [stderr] warning: method is never used: `to_map`
Nov 28 06:37:09.382 INFO [stderr]   --> src/lib.rs:64:5
Nov 28 06:37:09.382 INFO [stderr]    |
Nov 28 06:37:09.382 INFO [stderr] 64 |     pub fn to_map(&self) -> ChainMapType<K, V> {
Nov 28 06:37:09.382 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 06:37:09.382 INFO [stderr] 
Nov 28 06:37:09.382 INFO [stderr] warning: method is never used: `parents`
Nov 28 06:37:09.382 INFO [stderr]   --> src/lib.rs:78:5
Nov 28 06:37:09.382 INFO [stderr]    |
Nov 28 06:37:09.382 INFO [stderr] 78 |     pub fn parents(&self) -> Option<Self> {
Nov 28 06:37:09.382 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 06:37:09.382 INFO [stderr] 
Nov 28 06:37:09.382 INFO [stderr] warning: method is never used: `children`
Nov 28 06:37:09.382 INFO [stderr]   --> src/lib.rs:89:5
Nov 28 06:37:09.382 INFO [stderr]    |
Nov 28 06:37:09.383 INFO [stderr] 89 |     pub fn children(&self) -> Option<Self> {
Nov 28 06:37:09.383 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 06:37:09.383 INFO [stderr] 
Nov 28 06:37:09.409 INFO [stderr] warning: variable does not need to be mutable
Nov 28 06:37:09.409 INFO [stderr]   --> src/example.rs:16:9
Nov 28 06:37:09.409 INFO [stderr]    |
Nov 28 06:37:09.409 INFO [stderr] 16 |     let mut clothing = HashMap::new();
Nov 28 06:37:09.409 INFO [stderr]    |         ----^^^^^^^^
Nov 28 06:37:09.409 INFO [stderr]    |         |
Nov 28 06:37:09.409 INFO [stderr]    |         help: remove this `mut`
Nov 28 06:37:09.409 INFO [stderr]    |
Nov 28 06:37:09.409 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 06:37:09.409 INFO [stderr] 
Nov 28 06:37:09.497 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
Nov 28 06:37:09.500 INFO [stderr] su: No module specific data is present
Nov 28 06:37:10.206 INFO running `"docker" "inspect" "3c1a8ad88a049e4b1cc3b03c3b5454c47dbaec046481c3da4cc04db64f07311e"`
Nov 28 06:37:10.526 INFO running `"docker" "rm" "-f" "3c1a8ad88a049e4b1cc3b03c3b5454c47dbaec046481c3da4cc04db64f07311e"`
Nov 28 06:37:10.848 INFO [stdout] 3c1a8ad88a049e4b1cc3b03c3b5454c47dbaec046481c3da4cc04db64f07311e