Dec 05 16:32:24.368 INFO checking assoc_list-0.1.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 16:32:24.368 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 05 16:32:24.776 INFO [stdout] d3014611a064fcbfbd6d37d8b8e12e785e68a2d996159267210517a6b80d2dcd
Dec 05 16:32:24.784 INFO running `"docker" "start" "-a" "d3014611a064fcbfbd6d37d8b8e12e785e68a2d996159267210517a6b80d2dcd"`
Dec 05 16:32:26.003 INFO [stderr] usermod: no changes
Dec 05 16:32:26.107 INFO [stderr]     Checking assoc_list v0.1.0 (/source)
Dec 05 16:32:27.409 INFO [stderr] warning: method is never used: `new`
Dec 05 16:32:27.409 INFO [stderr]   --> src/lib.rs:11:5
Dec 05 16:32:27.409 INFO [stderr]    |
Dec 05 16:32:27.409 INFO [stderr] 11 |     fn new() -> AssocList<K, V> {
Dec 05 16:32:27.409 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:32:27.409 INFO [stderr]    |
Dec 05 16:32:27.409 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 16:32:27.409 INFO [stderr] 
Dec 05 16:32:27.409 INFO [stderr] warning: method is never used: `insert`
Dec 05 16:32:27.409 INFO [stderr]   --> src/lib.rs:15:5
Dec 05 16:32:27.409 INFO [stderr]    |
Dec 05 16:32:27.409 INFO [stderr] 15 |     fn insert(&mut self, k: K, v: V) {
Dec 05 16:32:27.409 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:32:27.409 INFO [stderr] 
Dec 05 16:32:27.409 INFO [stderr] warning: method is never used: `len`
Dec 05 16:32:27.409 INFO [stderr]   --> src/lib.rs:19:5
Dec 05 16:32:27.409 INFO [stderr]    |
Dec 05 16:32:27.409 INFO [stderr] 19 |     fn len(&self) -> usize {
Dec 05 16:32:27.409 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:32:27.409 INFO [stderr] 
Dec 05 16:32:27.410 INFO [stderr] warning: method is never used: `contains_key`
Dec 05 16:32:27.410 INFO [stderr]   --> src/lib.rs:36:5
Dec 05 16:32:27.410 INFO [stderr]    |
Dec 05 16:32:27.410 INFO [stderr] 36 |     fn contains_key(&self, k: &K) -> bool {
Dec 05 16:32:27.410 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:32:27.410 INFO [stderr] 
Dec 05 16:32:27.410 INFO [stderr] warning: method is never used: `remove`
Dec 05 16:32:27.410 INFO [stderr]   --> src/lib.rs:43:5
Dec 05 16:32:27.410 INFO [stderr]    |
Dec 05 16:32:27.410 INFO [stderr] 43 |     fn remove(&mut self, k: &K) {
Dec 05 16:32:27.410 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:32:27.410 INFO [stderr] 
Dec 05 16:32:27.672 INFO [stderr] warning: unused variable: `map`
Dec 05 16:32:27.672 INFO [stderr]   --> src/lib.rs:60:9
Dec 05 16:32:27.672 INFO [stderr]    |
Dec 05 16:32:27.672 INFO [stderr] 60 |     let map: AssocList<String, String> = AssocList::new();
Dec 05 16:32:27.672 INFO [stderr]    |         ^^^ help: consider using `_map` instead
Dec 05 16:32:27.672 INFO [stderr]    |
Dec 05 16:32:27.672 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 16:32:27.672 INFO [stderr] 
Dec 05 16:32:27.716 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.68s
Dec 05 16:32:27.718 INFO [stderr] su: No module specific data is present
Dec 05 16:32:29.017 INFO running `"docker" "inspect" "d3014611a064fcbfbd6d37d8b8e12e785e68a2d996159267210517a6b80d2dcd"`
Dec 05 16:32:29.407 INFO running `"docker" "rm" "-f" "d3014611a064fcbfbd6d37d8b8e12e785e68a2d996159267210517a6b80d2dcd"`
Dec 05 16:32:29.842 INFO [stdout] d3014611a064fcbfbd6d37d8b8e12e785e68a2d996159267210517a6b80d2dcd