[INFO] updating cached repository ffjanp/finding_cycles
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ffjanp/finding_cycles
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ffjanp/finding_cycles" "work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/ffjanp/finding_cycles"`
[INFO] [stderr] Cloning into 'work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/ffjanp/finding_cycles'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ffjanp/finding_cycles" "work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/ffjanp/finding_cycles"`
[INFO] [stderr] Cloning into 'work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/ffjanp/finding_cycles'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 37c86244bc1f34490dea91ef291560984bb85fc6
[INFO] sha for GitHub repo ffjanp/finding_cycles: 37c86244bc1f34490dea91ef291560984bb85fc6
[INFO] validating manifest of ffjanp/finding_cycles on toolchain master#e2f221c75932de7a29845c8d6f1f73536ad00c41
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ffjanp/finding_cycles on toolchain try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ffjanp/finding_cycles
[INFO] finished frobbing ffjanp/finding_cycles
[INFO] frobbed toml for ffjanp/finding_cycles written to work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/ffjanp/finding_cycles/Cargo.toml
[INFO] started frobbing ffjanp/finding_cycles
[INFO] finished frobbing ffjanp/finding_cycles
[INFO] frobbed toml for ffjanp/finding_cycles written to work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/ffjanp/finding_cycles/Cargo.toml
[INFO] crate ffjanp/finding_cycles has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ffjanp/finding_cycles against try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff for pr-57617
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57617/worker-7/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/ffjanp/finding_cycles:/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" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e649dc6bd2a8122caf02ef921081e0f6dfc666c7afa12cc9a6d2e729e069d590
[INFO] running `"docker" "start" "-a" "e649dc6bd2a8122caf02ef921081e0f6dfc666c7afa12cc9a6d2e729e069d590"`
[INFO] [stderr]     Checking finding_cycles v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]   --> src/main.rs:36:98
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn find_cycles<W: std::io::Write>(graph:&mut HashMap<usize,Vec<usize>>,startnode : usize,n:usize,file:&mut W)   {
[INFO] [stderr]    |                                                                                                  ^^^^ help: consider using `_file` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]   --> src/main.rs:36:98
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn find_cycles<W: std::io::Write>(graph:&mut HashMap<usize,Vec<usize>>,startnode : usize,n:usize,file:&mut W)   {
[INFO] [stderr]    |                                                                                                  ^^^^ help: consider using `_file` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `"docker" "inspect" "e649dc6bd2a8122caf02ef921081e0f6dfc666c7afa12cc9a6d2e729e069d590"`
[INFO] running `"docker" "rm" "-f" "e649dc6bd2a8122caf02ef921081e0f6dfc666c7afa12cc9a6d2e729e069d590"`
[INFO] [stdout] e649dc6bd2a8122caf02ef921081e0f6dfc666c7afa12cc9a6d2e729e069d590