[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/beta-1.37-6/sources/1.36.0/gh/muminoff/100-prisoners-problem"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/muminoff/100-prisoners-problem'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/muminoff/100-prisoners-problem" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/muminoff/100-prisoners-problem"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of muminoff/100-prisoners-problem on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "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/beta-1.37-6/sources/1.36.0/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/beta-1.37-6/sources/beta-2019-07-23/gh/muminoff/100-prisoners-problem/Cargo.toml
[INFO] crate muminoff/100-prisoners-problem already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing muminoff/100-prisoners-problem against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] c7b3e01e4eaf9f173f08b19197c00f7fa019d9a53777aa0da866b3e2435ae228
[INFO] running `"docker" "start" "-a" "c7b3e01e4eaf9f173f08b19197c00f7fa019d9a53777aa0da866b3e2435ae228"`
[INFO] [stderr]    Compiling prisoners v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `"docker" "inspect" "c7b3e01e4eaf9f173f08b19197c00f7fa019d9a53777aa0da866b3e2435ae228"`
[INFO] running `"docker" "rm" "-f" "c7b3e01e4eaf9f173f08b19197c00f7fa019d9a53777aa0da866b3e2435ae228"`
[INFO] [stdout] c7b3e01e4eaf9f173f08b19197c00f7fa019d9a53777aa0da866b3e2435ae228
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 65524422fdd19ea0a0e3a3615de2dbae8587529b07ec1b873b53c1211bcb176a
[INFO] running `"docker" "start" "-a" "65524422fdd19ea0a0e3a3615de2dbae8587529b07ec1b873b53c1211bcb176a"`
[INFO] [stderr]    Compiling prisoners v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "65524422fdd19ea0a0e3a3615de2dbae8587529b07ec1b873b53c1211bcb176a"`
[INFO] running `"docker" "rm" "-f" "65524422fdd19ea0a0e3a3615de2dbae8587529b07ec1b873b53c1211bcb176a"`
[INFO] [stdout] 65524422fdd19ea0a0e3a3615de2dbae8587529b07ec1b873b53c1211bcb176a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 7bce5efdc759482468d165f1b7fabeb3ba9ff3a6a65e6c1eb60c7fadadbe8de9
[INFO] running `"docker" "start" "-a" "7bce5efdc759482468d165f1b7fabeb3ba9ff3a6a65e6c1eb60c7fadadbe8de9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/prisoners-0429b74086e6cf90
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7bce5efdc759482468d165f1b7fabeb3ba9ff3a6a65e6c1eb60c7fadadbe8de9"`
[INFO] running `"docker" "rm" "-f" "7bce5efdc759482468d165f1b7fabeb3ba9ff3a6a65e6c1eb60c7fadadbe8de9"`
[INFO] [stdout] 7bce5efdc759482468d165f1b7fabeb3ba9ff3a6a65e6c1eb60c7fadadbe8de9