[INFO] updating cached repository muminoff/100-prisoners-problem
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/muminoff/100-prisoners-problem
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/muminoff/100-prisoners-problem" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/muminoff/100-prisoners-problem"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/muminoff/100-prisoners-problem'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/muminoff/100-prisoners-problem" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/muminoff/100-prisoners-problem"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/muminoff/100-prisoners-problem'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ea7cbb290f349392d47b19543053f59237e1ae06
[INFO] sha for GitHub repo muminoff/100-prisoners-problem: ea7cbb290f349392d47b19543053f59237e1ae06
[INFO] validating manifest of muminoff/100-prisoners-problem on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of muminoff/100-prisoners-problem on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing muminoff/100-prisoners-problem
[INFO] finished frobbing muminoff/100-prisoners-problem
[INFO] frobbed toml for muminoff/100-prisoners-problem written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/muminoff/100-prisoners-problem/Cargo.toml
[INFO] started frobbing muminoff/100-prisoners-problem
[INFO] finished frobbing muminoff/100-prisoners-problem
[INFO] frobbed toml for muminoff/100-prisoners-problem written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/muminoff/100-prisoners-problem/Cargo.toml
[INFO] crate muminoff/100-prisoners-problem has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking muminoff/100-prisoners-problem against try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-0/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/muminoff/100-prisoners-problem:/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" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 42eae866ac4cf8ab9f0b24cb8a6eded39e6e8bb68dcf8f41ab92850fd9f719c0
[INFO] running `"docker" "start" "-a" "42eae866ac4cf8ab9f0b24cb8a6eded39e6e8bb68dcf8f41ab92850fd9f719c0"`
[INFO] [stderr]     Checking prisoners v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `"docker" "inspect" "42eae866ac4cf8ab9f0b24cb8a6eded39e6e8bb68dcf8f41ab92850fd9f719c0"`
[INFO] running `"docker" "rm" "-f" "42eae866ac4cf8ab9f0b24cb8a6eded39e6e8bb68dcf8f41ab92850fd9f719c0"`
[INFO] [stdout] 42eae866ac4cf8ab9f0b24cb8a6eded39e6e8bb68dcf8f41ab92850fd9f719c0