Dec 01 01:51:30.884 INFO checking assoc_list-0.1.0 against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Dec 01 01:51:30.884 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-6/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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"`
Dec 01 01:51:31.383 INFO [stdout] e08d4859f2774dc3a389fbc13f1e6e58feadf3623a65243fc71b7409e2c016e6
Dec 01 01:51:31.385 INFO running `"docker" "start" "-a" "e08d4859f2774dc3a389fbc13f1e6e58feadf3623a65243fc71b7409e2c016e6"`
Dec 01 01:51:34.108 INFO [stderr] usermod: no changes
Dec 01 01:51:34.224 INFO [stderr]     Checking assoc_list v0.1.0 (/source)
Dec 01 01:51:34.879 INFO [stderr] warning: method is never used: `new`
Dec 01 01:51:34.879 INFO [stderr]   --> src/lib.rs:11:5
Dec 01 01:51:34.879 INFO [stderr]    |
Dec 01 01:51:34.879 INFO [stderr] 11 |     fn new() -> AssocList<K, V> {
Dec 01 01:51:34.879 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 01:51:34.879 INFO [stderr]    |
Dec 01 01:51:34.879 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 01 01:51:34.879 INFO [stderr] 
Dec 01 01:51:34.879 INFO [stderr] warning: method is never used: `insert`
Dec 01 01:51:34.879 INFO [stderr]   --> src/lib.rs:15:5
Dec 01 01:51:34.879 INFO [stderr]    |
Dec 01 01:51:34.879 INFO [stderr] 15 |     fn insert(&mut self, k: K, v: V) {
Dec 01 01:51:34.879 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 01:51:34.879 INFO [stderr] 
Dec 01 01:51:34.879 INFO [stderr] warning: method is never used: `len`
Dec 01 01:51:34.879 INFO [stderr]   --> src/lib.rs:19:5
Dec 01 01:51:34.879 INFO [stderr]    |
Dec 01 01:51:34.879 INFO [stderr] 19 |     fn len(&self) -> usize {
Dec 01 01:51:34.879 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 01 01:51:34.879 INFO [stderr] 
Dec 01 01:51:34.879 INFO [stderr] warning: method is never used: `contains_key`
Dec 01 01:51:34.879 INFO [stderr]   --> src/lib.rs:36:5
Dec 01 01:51:34.879 INFO [stderr]    |
Dec 01 01:51:34.879 INFO [stderr] 36 |     fn contains_key(&self, k: &K) -> bool {
Dec 01 01:51:34.879 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 01:51:34.879 INFO [stderr] 
Dec 01 01:51:34.879 INFO [stderr] warning: method is never used: `remove`
Dec 01 01:51:34.879 INFO [stderr]   --> src/lib.rs:43:5
Dec 01 01:51:34.879 INFO [stderr]    |
Dec 01 01:51:34.879 INFO [stderr] 43 |     fn remove(&mut self, k: &K) {
Dec 01 01:51:34.879 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 01:51:34.879 INFO [stderr] 
Dec 01 01:51:35.155 INFO [stderr] warning: unused variable: `map`
Dec 01 01:51:35.155 INFO [stderr]   --> src/lib.rs:60:9
Dec 01 01:51:35.155 INFO [stderr]    |
Dec 01 01:51:35.155 INFO [stderr] 60 |     let map: AssocList<String, String> = AssocList::new();
Dec 01 01:51:35.155 INFO [stderr]    |         ^^^ help: consider using `_map` instead
Dec 01 01:51:35.155 INFO [stderr]    |
Dec 01 01:51:35.155 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 01 01:51:35.155 INFO [stderr] 
Dec 01 01:51:35.180 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
Dec 01 01:51:35.181 INFO [stderr] su: No module specific data is present
Dec 01 01:51:36.120 INFO running `"docker" "inspect" "e08d4859f2774dc3a389fbc13f1e6e58feadf3623a65243fc71b7409e2c016e6"`
Dec 01 01:51:36.408 INFO running `"docker" "rm" "-f" "e08d4859f2774dc3a389fbc13f1e6e58feadf3623a65243fc71b7409e2c016e6"`
Dec 01 01:51:36.740 INFO [stdout] e08d4859f2774dc3a389fbc13f1e6e58feadf3623a65243fc71b7409e2c016e6