[INFO] updating cached repository chr4/horsegen
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/chr4/horsegen
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/chr4/horsegen" "work/ex/beta-1.38-1/sources/1.37.0/gh/chr4/horsegen"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/chr4/horsegen'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/chr4/horsegen" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chr4/horsegen"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chr4/horsegen'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1f5cc2646631051e5cdd6226a683b146c8ef5438
[INFO] sha for GitHub repo chr4/horsegen: 1f5cc2646631051e5cdd6226a683b146c8ef5438
[INFO] validating manifest of chr4/horsegen on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of chr4/horsegen on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing chr4/horsegen
[INFO] finished frobbing chr4/horsegen
[INFO] frobbed toml for chr4/horsegen written to work/ex/beta-1.38-1/sources/1.37.0/gh/chr4/horsegen/Cargo.toml
[INFO] started frobbing chr4/horsegen
[INFO] finished frobbing chr4/horsegen
[INFO] frobbed toml for chr4/horsegen written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chr4/horsegen/Cargo.toml
[INFO] crate chr4/horsegen already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing chr4/horsegen against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chr4/horsegen:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 1eae8924a0486f00fa4c1c47253201ab25e87a8c8e9ae27e6112cc11161614be
[INFO] running `"docker" "start" "-a" "1eae8924a0486f00fa4c1c47253201ab25e87a8c8e9ae27e6112cc11161614be"`
[INFO] [stderr]    Compiling libc v0.2.57
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling horsegen v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.60s
[INFO] running `"docker" "inspect" "1eae8924a0486f00fa4c1c47253201ab25e87a8c8e9ae27e6112cc11161614be"`
[INFO] running `"docker" "rm" "-f" "1eae8924a0486f00fa4c1c47253201ab25e87a8c8e9ae27e6112cc11161614be"`
[INFO] [stdout] 1eae8924a0486f00fa4c1c47253201ab25e87a8c8e9ae27e6112cc11161614be
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chr4/horsegen:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] cfa4b09673b5fce52596ce38ff80dc3e011117812ef29c3915eed7765a87f99b
[INFO] running `"docker" "start" "-a" "cfa4b09673b5fce52596ce38ff80dc3e011117812ef29c3915eed7765a87f99b"`
[INFO] [stderr]    Compiling horsegen v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.64s
[INFO] running `"docker" "inspect" "cfa4b09673b5fce52596ce38ff80dc3e011117812ef29c3915eed7765a87f99b"`
[INFO] running `"docker" "rm" "-f" "cfa4b09673b5fce52596ce38ff80dc3e011117812ef29c3915eed7765a87f99b"`
[INFO] [stdout] cfa4b09673b5fce52596ce38ff80dc3e011117812ef29c3915eed7765a87f99b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chr4/horsegen:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 1ec22e07c8ff72677cbfb23fa64ab1fe94ff711c6445a388bbb905a02e0d631a
[INFO] running `"docker" "start" "-a" "1ec22e07c8ff72677cbfb23fa64ab1fe94ff711c6445a388bbb905a02e0d631a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/horsegen-fa2114eb8b23db62
[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" "1ec22e07c8ff72677cbfb23fa64ab1fe94ff711c6445a388bbb905a02e0d631a"`
[INFO] running `"docker" "rm" "-f" "1ec22e07c8ff72677cbfb23fa64ab1fe94ff711c6445a388bbb905a02e0d631a"`
[INFO] [stdout] 1ec22e07c8ff72677cbfb23fa64ab1fe94ff711c6445a388bbb905a02e0d631a