[INFO] updating cached repository tuzz/supermutation
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tuzz/supermutation
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tuzz/supermutation" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/tuzz/supermutation"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/tuzz/supermutation'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tuzz/supermutation" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/tuzz/supermutation"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/tuzz/supermutation'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] eafbd87c5cb2e3c1926035910f6f21323a976f03
[INFO] sha for GitHub repo tuzz/supermutation: eafbd87c5cb2e3c1926035910f6f21323a976f03
[INFO] validating manifest of tuzz/supermutation on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tuzz/supermutation on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tuzz/supermutation
[INFO] finished frobbing tuzz/supermutation
[INFO] frobbed toml for tuzz/supermutation written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/tuzz/supermutation/Cargo.toml
[INFO] started frobbing tuzz/supermutation
[INFO] finished frobbing tuzz/supermutation
[INFO] frobbed toml for tuzz/supermutation written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/tuzz/supermutation/Cargo.toml
[INFO] crate tuzz/supermutation already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking tuzz/supermutation against master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-4/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/tuzz/supermutation:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 84c4c831f17ea0e7bbe15d88b1e1f65678754fb3ffe51467707a9cbdd9a11e18
[INFO] running `"docker" "start" "-a" "84c4c831f17ea0e7bbe15d88b1e1f65678754fb3ffe51467707a9cbdd9a11e18"`
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling termcolor v1.0.4
[INFO] [stderr]    Compiling bindgen v0.37.4
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]     Checking lehmer v3.0.0
[INFO] [stderr]     Checking bucket_queue v2.0.0
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling proc-macro2 v0.3.5
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling humantime v1.2.0
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling regex-syntax v0.6.3
[INFO] [stderr]    Compiling clang-sys v0.23.0
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling which v1.0.5
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling cexpr v0.2.3
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling croaring-sys v0.3.7
[INFO] [stderr]     Checking croaring v0.3.7
[INFO] [stderr]     Checking supermutation v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `len`
[INFO] [stderr]   --> src/closed_set/mod.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn len(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `len`
[INFO] [stderr]   --> src/open_set/mod.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn len(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `maximum_f_cost`
[INFO] [stderr]   --> src/open_set/mod.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn maximum_f_cost(&self) -> Option<usize> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `open_set_len`
[INFO] [stderr]   --> src/search/mod.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn open_set_len(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `closed_set_len`
[INFO] [stderr]   --> src/search/mod.rs:66:5
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn closed_set_len(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `uniform_paths` has been stable since 1.32.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(uniform_paths)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `uniform_paths` has been stable since 1.32.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(uniform_paths)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 53s
[INFO] running `"docker" "inspect" "84c4c831f17ea0e7bbe15d88b1e1f65678754fb3ffe51467707a9cbdd9a11e18"`
[INFO] running `"docker" "rm" "-f" "84c4c831f17ea0e7bbe15d88b1e1f65678754fb3ffe51467707a9cbdd9a11e18"`
[INFO] [stdout] 84c4c831f17ea0e7bbe15d88b1e1f65678754fb3ffe51467707a9cbdd9a11e18