Dec 18 15:11:27.877 INFO checking hindley-milner-0.1.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 15:11:27.877 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/hindley-milner/0.1.0:/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 15:11:28.360 INFO [stdout] e66fe1e8137ef326aff3c389c9b02973d7610998b9a5e4e99bf0187c519ccc40
Dec 18 15:11:28.370 INFO running `"docker" "start" "-a" "e66fe1e8137ef326aff3c389c9b02973d7610998b9a5e4e99bf0187c519ccc40"`
Dec 18 15:11:29.128 INFO [stderr]     Checking hindley-milner v0.1.0 (/opt/crater/workdir)
Dec 18 15:11:29.527 INFO [stderr] warning: struct is never constructed: `Namer`
Dec 18 15:11:29.527 INFO [stderr]   --> src/lib.rs:77:1
Dec 18 15:11:29.527 INFO [stderr]    |
Dec 18 15:11:29.527 INFO [stderr] 77 | struct Namer {
Dec 18 15:11:29.527 INFO [stderr]    | ^^^^^^^^^^^^
Dec 18 15:11:29.527 INFO [stderr]    |
Dec 18 15:11:29.527 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 15:11:29.527 INFO [stderr] 
Dec 18 15:11:29.527 INFO [stderr] warning: method is never used: `next`
Dec 18 15:11:29.527 INFO [stderr]   --> src/lib.rs:83:5
Dec 18 15:11:29.527 INFO [stderr]    |
Dec 18 15:11:29.527 INFO [stderr] 83 |     fn next(&mut self) -> String {
Dec 18 15:11:29.527 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:11:29.527 INFO [stderr] 
Dec 18 15:11:29.527 INFO [stderr] warning: method is never used: `name`
Dec 18 15:11:29.528 INFO [stderr]   --> src/lib.rs:89:5
Dec 18 15:11:29.528 INFO [stderr]    |
Dec 18 15:11:29.528 INFO [stderr] 89 |     fn name(&mut self, t: ArenaType) -> String {
Dec 18 15:11:29.528 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:11:29.528 INFO [stderr] 
Dec 18 15:11:29.528 INFO [stderr] warning: method is never used: `id`
Dec 18 15:11:29.528 INFO [stderr]    --> src/lib.rs:124:5
Dec 18 15:11:29.528 INFO [stderr]     |
Dec 18 15:11:29.528 INFO [stderr] 124 |     fn id(&self) -> usize {
Dec 18 15:11:29.528 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:11:29.528 INFO [stderr] 
Dec 18 15:11:29.532 INFO [stderr] warning: method is never used: `as_string`
Dec 18 15:11:29.532 INFO [stderr]    --> src/lib.rs:146:5
Dec 18 15:11:29.532 INFO [stderr]     |
Dec 18 15:11:29.532 INFO [stderr] 146 |     fn as_string(&self, a: &Vec<Type>, namer: &mut Namer) -> String {
Dec 18 15:11:29.532 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:11:29.532 INFO [stderr] 
Dec 18 15:11:29.532 INFO [stderr] warning: function is never used: `test_env`
Dec 18 15:11:29.532 INFO [stderr]    --> src/lib.rs:537:1
Dec 18 15:11:29.532 INFO [stderr]     |
Dec 18 15:11:29.532 INFO [stderr] 537 | fn test_env() -> (Vec<Type>, Env) {
Dec 18 15:11:29.532 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:11:29.532 INFO [stderr] 
Dec 18 15:11:29.627 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
Dec 18 15:11:29.859 INFO running `"docker" "inspect" "e66fe1e8137ef326aff3c389c9b02973d7610998b9a5e4e99bf0187c519ccc40"`
Dec 18 15:11:29.946 INFO running `"docker" "rm" "-f" "e66fe1e8137ef326aff3c389c9b02973d7610998b9a5e4e99bf0187c519ccc40"`
Dec 18 15:11:30.007 INFO [stdout] e66fe1e8137ef326aff3c389c9b02973d7610998b9a5e4e99bf0187c519ccc40