Dec 19 06:34:39.381 INFO checking tuzz/supermutation against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 06:34:39.381 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 06:34:39.891 INFO [stdout] c257d8b0beb50ab6e185f671f1d3476c467b093082b3c593400b6b3e02b7c0f7
Dec 19 06:34:39.895 INFO running `"docker" "start" "-a" "c257d8b0beb50ab6e185f671f1d3476c467b093082b3c593400b6b3e02b7c0f7"`
Dec 19 06:34:41.828 INFO [stderr]    Compiling ucd-util v0.1.3
Dec 19 06:34:41.856 INFO [stderr]    Compiling unicode-width v0.1.5
Dec 19 06:34:41.856 INFO [stderr]    Compiling vec_map v0.8.1
Dec 19 06:34:41.856 INFO [stderr]    Compiling bindgen v0.37.4
Dec 19 06:34:41.856 INFO [stderr]    Compiling ansi_term v0.11.0
Dec 19 06:34:41.856 INFO [stderr]    Compiling strsim v0.7.0
Dec 19 06:34:41.856 INFO [stderr]    Compiling peeking_take_while v0.1.2
Dec 19 06:34:41.856 INFO [stderr]     Checking bucket_queue v2.0.0
Dec 19 06:34:45.056 INFO [stderr]     Checking lehmer v3.0.0
Dec 19 06:34:45.342 INFO [stderr]    Compiling clang-sys v0.23.0
Dec 19 06:34:45.345 INFO [stderr]    Compiling humantime v1.2.0
Dec 19 06:34:45.347 INFO [stderr]    Compiling proc-macro2 v0.3.5
Dec 19 06:34:45.352 INFO [stderr]    Compiling textwrap v0.10.0
Dec 19 06:34:45.384 INFO [stderr]    Compiling regex-syntax v0.6.3
Dec 19 06:34:45.408 INFO [stderr]    Compiling memchr v2.1.1
Dec 19 06:34:45.659 INFO [stderr]    Compiling memchr v1.0.2
Dec 19 06:34:45.993 INFO [stderr]    Compiling atty v0.2.11
Dec 19 06:34:47.092 INFO [stderr]    Compiling which v1.0.5
Dec 19 06:34:47.261 INFO [stderr]    Compiling libloading v0.5.0
Dec 19 06:34:50.362 INFO [stderr]    Compiling nom v3.2.1
Dec 19 06:34:51.177 INFO [stderr]    Compiling clap v2.32.0
Dec 19 06:34:53.016 INFO [stderr]    Compiling aho-corasick v0.6.9
Dec 19 06:34:53.288 INFO [stderr]    Compiling quote v0.5.2
Dec 19 06:35:03.516 INFO [stderr]    Compiling cexpr v0.2.3
Dec 19 06:35:24.854 INFO [stderr]    Compiling regex v1.0.6
Dec 19 06:35:45.250 INFO [stderr]    Compiling env_logger v0.5.13
Dec 19 06:36:10.366 INFO [stderr]    Compiling croaring-sys v0.3.7
Dec 19 06:36:52.181 INFO [stderr]     Checking croaring v0.3.7
Dec 19 06:36:52.518 INFO [stderr]     Checking supermutation v0.1.0 (/opt/crater/workdir)
Dec 19 06:36:53.077 INFO [stderr] warning: method is never used: `len`
Dec 19 06:36:53.077 INFO [stderr]   --> src/closed_set/mod.rs:24:5
Dec 19 06:36:53.077 INFO [stderr]    |
Dec 19 06:36:53.077 INFO [stderr] 24 |     pub fn len(&self) -> usize {
Dec 19 06:36:53.078 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:36:53.078 INFO [stderr]    |
Dec 19 06:36:53.078 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 06:36:53.078 INFO [stderr] 
Dec 19 06:36:53.078 INFO [stderr] warning: method is never used: `len`
Dec 19 06:36:53.078 INFO [stderr]   --> src/open_set/mod.rs:28:5
Dec 19 06:36:53.078 INFO [stderr]    |
Dec 19 06:36:53.078 INFO [stderr] 28 |     pub fn len(&self) -> usize {
Dec 19 06:36:53.078 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:36:53.078 INFO [stderr] 
Dec 19 06:36:53.078 INFO [stderr] warning: method is never used: `maximum_f_cost`
Dec 19 06:36:53.078 INFO [stderr]   --> src/open_set/mod.rs:36:5
Dec 19 06:36:53.078 INFO [stderr]    |
Dec 19 06:36:53.078 INFO [stderr] 36 |     pub fn maximum_f_cost(&self) -> Option<usize> {
Dec 19 06:36:53.078 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:36:53.078 INFO [stderr] 
Dec 19 06:36:53.078 INFO [stderr] warning: method is never used: `open_set_len`
Dec 19 06:36:53.078 INFO [stderr]   --> src/search/mod.rs:62:5
Dec 19 06:36:53.078 INFO [stderr]    |
Dec 19 06:36:53.078 INFO [stderr] 62 |     pub fn open_set_len(&self) -> usize {
Dec 19 06:36:53.078 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:36:53.078 INFO [stderr] 
Dec 19 06:36:53.078 INFO [stderr] warning: method is never used: `closed_set_len`
Dec 19 06:36:53.078 INFO [stderr]   --> src/search/mod.rs:66:5
Dec 19 06:36:53.078 INFO [stderr]    |
Dec 19 06:36:53.078 INFO [stderr] 66 |     pub fn closed_set_len(&self) -> usize {
Dec 19 06:36:53.078 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:36:53.078 INFO [stderr] 
Dec 19 06:36:54.143 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 12s
Dec 19 06:36:55.421 INFO running `"docker" "inspect" "c257d8b0beb50ab6e185f671f1d3476c467b093082b3c593400b6b3e02b7c0f7"`
Dec 19 06:36:55.776 INFO running `"docker" "rm" "-f" "c257d8b0beb50ab6e185f671f1d3476c467b093082b3c593400b6b3e02b7c0f7"`
Dec 19 06:36:56.124 INFO [stdout] c257d8b0beb50ab6e185f671f1d3476c467b093082b3c593400b6b3e02b7c0f7