Dec 19 06:34:40.224 INFO checking tuzz/supermutation against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 06:34:40.224 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/tuzz/supermutation:/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 06:34:40.729 INFO [stdout] e2c321010229c701dbd3c68000795d868ee4821c074e154e835c134f3baec132
Dec 19 06:34:40.731 INFO running `"docker" "start" "-a" "e2c321010229c701dbd3c68000795d868ee4821c074e154e835c134f3baec132"`
Dec 19 06:34:43.903 INFO [stderr]    Compiling cfg-if v0.1.6
Dec 19 06:34:43.904 INFO [stderr]    Compiling ucd-util v0.1.3
Dec 19 06:34:43.904 INFO [stderr]    Compiling quick-error v1.2.2
Dec 19 06:34:43.904 INFO [stderr]    Compiling unicode-width v0.1.5
Dec 19 06:34:43.904 INFO [stderr]    Compiling utf8-ranges v1.0.2
Dec 19 06:34:43.912 INFO [stderr]    Compiling strsim v0.7.0
Dec 19 06:34:43.964 INFO [stderr]    Compiling ansi_term v0.11.0
Dec 19 06:34:43.964 INFO [stderr]    Compiling bindgen v0.37.4
Dec 19 06:34:44.344 INFO [stderr]    Compiling termcolor v1.0.4
Dec 19 06:34:47.736 INFO [stderr]    Compiling vec_map v0.8.1
Dec 19 06:34:47.743 INFO [stderr]    Compiling peeking_take_while v0.1.2
Dec 19 06:34:48.016 INFO [stderr]     Checking lehmer v3.0.0
Dec 19 06:34:48.500 INFO [stderr]     Checking bucket_queue v2.0.0
Dec 19 06:34:48.536 INFO [stderr]    Compiling libloading v0.5.0
Dec 19 06:34:48.536 INFO [stderr]    Compiling thread_local v0.3.6
Dec 19 06:34:48.604 INFO [stderr]    Compiling clang-sys v0.23.0
Dec 19 06:34:48.604 INFO [stderr]    Compiling proc-macro2 v0.3.5
Dec 19 06:34:48.684 INFO [stderr]    Compiling log v0.4.6
Dec 19 06:34:48.864 INFO [stderr]    Compiling textwrap v0.10.0
Dec 19 06:34:48.888 INFO [stderr]    Compiling humantime v1.2.0
Dec 19 06:34:49.244 INFO [stderr]    Compiling regex-syntax v0.6.3
Dec 19 06:34:53.736 INFO [stderr]    Compiling memchr v2.1.1
Dec 19 06:34:53.750 INFO [stderr]    Compiling memchr v1.0.2
Dec 19 06:34:53.793 INFO [stderr]    Compiling atty v0.2.11
Dec 19 06:34:53.980 INFO [stderr]    Compiling which v1.0.5
Dec 19 06:34:54.853 INFO [stderr]    Compiling clap v2.32.0
Dec 19 06:34:56.137 INFO [stderr]    Compiling nom v3.2.1
Dec 19 06:34:58.576 INFO [stderr]    Compiling quote v0.5.2
Dec 19 06:34:58.704 INFO [stderr]    Compiling aho-corasick v0.6.9
Dec 19 06:35:06.536 INFO [stderr]    Compiling cexpr v0.2.3
Dec 19 06:35:19.097 INFO [stderr]    Compiling regex v1.0.6
Dec 19 06:35:52.584 INFO [stderr]    Compiling env_logger v0.5.13
Dec 19 06:36:18.204 INFO [stderr]    Compiling croaring-sys v0.3.7
Dec 19 06:37:00.251 INFO [stderr]     Checking croaring v0.3.7
Dec 19 06:37:00.528 INFO [stderr]     Checking supermutation v0.1.0 (/opt/crater/workdir)
Dec 19 06:37:00.988 INFO [stderr] warning: method is never used: `len`
Dec 19 06:37:00.988 INFO [stderr]   --> src/closed_set/mod.rs:24:5
Dec 19 06:37:00.988 INFO [stderr]    |
Dec 19 06:37:00.988 INFO [stderr] 24 |     pub fn len(&self) -> usize {
Dec 19 06:37:00.989 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:37:00.989 INFO [stderr]    |
Dec 19 06:37:00.989 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 06:37:00.989 INFO [stderr] 
Dec 19 06:37:00.989 INFO [stderr] warning: method is never used: `len`
Dec 19 06:37:00.989 INFO [stderr]   --> src/open_set/mod.rs:28:5
Dec 19 06:37:00.989 INFO [stderr]    |
Dec 19 06:37:00.990 INFO [stderr] 28 |     pub fn len(&self) -> usize {
Dec 19 06:37:00.990 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:37:00.990 INFO [stderr] 
Dec 19 06:37:00.990 INFO [stderr] warning: method is never used: `maximum_f_cost`
Dec 19 06:37:00.990 INFO [stderr]   --> src/open_set/mod.rs:36:5
Dec 19 06:37:00.990 INFO [stderr]    |
Dec 19 06:37:00.990 INFO [stderr] 36 |     pub fn maximum_f_cost(&self) -> Option<usize> {
Dec 19 06:37:00.990 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:37:00.990 INFO [stderr] 
Dec 19 06:37:00.991 INFO [stderr] warning: method is never used: `open_set_len`
Dec 19 06:37:00.991 INFO [stderr]   --> src/search/mod.rs:62:5
Dec 19 06:37:00.991 INFO [stderr]    |
Dec 19 06:37:00.991 INFO [stderr] 62 |     pub fn open_set_len(&self) -> usize {
Dec 19 06:37:00.991 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:37:00.991 INFO [stderr] 
Dec 19 06:37:00.991 INFO [stderr] warning: method is never used: `closed_set_len`
Dec 19 06:37:00.991 INFO [stderr]   --> src/search/mod.rs:66:5
Dec 19 06:37:00.991 INFO [stderr]    |
Dec 19 06:37:00.992 INFO [stderr] 66 |     pub fn closed_set_len(&self) -> usize {
Dec 19 06:37:00.992 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:37:00.992 INFO [stderr] 
Dec 19 06:37:01.796 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 18s
Dec 19 06:37:02.146 INFO running `"docker" "inspect" "e2c321010229c701dbd3c68000795d868ee4821c074e154e835c134f3baec132"`
Dec 19 06:37:02.266 INFO running `"docker" "rm" "-f" "e2c321010229c701dbd3c68000795d868ee4821c074e154e835c134f3baec132"`
Dec 19 06:37:02.388 INFO [stdout] e2c321010229c701dbd3c68000795d868ee4821c074e154e835c134f3baec132