[INFO] updating cached repository JosephTLyons/birthday_paradox
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/JosephTLyons/birthday_paradox
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/JosephTLyons/birthday_paradox" "work/ex/beta-1.38-1/sources/1.37.0/gh/JosephTLyons/birthday_paradox"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/JosephTLyons/birthday_paradox'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JosephTLyons/birthday_paradox" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JosephTLyons/birthday_paradox"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JosephTLyons/birthday_paradox'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c16671632c7bff7ef5fd89aafef025880eeb1cb6
[INFO] sha for GitHub repo JosephTLyons/birthday_paradox: c16671632c7bff7ef5fd89aafef025880eeb1cb6
[INFO] validating manifest of JosephTLyons/birthday_paradox 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 JosephTLyons/birthday_paradox 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 JosephTLyons/birthday_paradox
[INFO] finished frobbing JosephTLyons/birthday_paradox
[INFO] frobbed toml for JosephTLyons/birthday_paradox written to work/ex/beta-1.38-1/sources/1.37.0/gh/JosephTLyons/birthday_paradox/Cargo.toml
[INFO] started frobbing JosephTLyons/birthday_paradox
[INFO] finished frobbing JosephTLyons/birthday_paradox
[INFO] frobbed toml for JosephTLyons/birthday_paradox written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JosephTLyons/birthday_paradox/Cargo.toml
[INFO] crate JosephTLyons/birthday_paradox 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 JosephTLyons/birthday_paradox 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-2/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/JosephTLyons/birthday_paradox:/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] 0a8cf6a8cbc01931f407cac11ae538c65d9a35f3f299c8623556c1f85193ab49
[INFO] running `"docker" "start" "-a" "0a8cf6a8cbc01931f407cac11ae538c65d9a35f3f299c8623556c1f85193ab49"`
[INFO] [stderr]    Compiling getrandom v0.1.6
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling rand_core v0.5.0
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]    Compiling chrono v0.4.7
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling birthday_paradox v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.54s
[INFO] running `"docker" "inspect" "0a8cf6a8cbc01931f407cac11ae538c65d9a35f3f299c8623556c1f85193ab49"`
[INFO] running `"docker" "rm" "-f" "0a8cf6a8cbc01931f407cac11ae538c65d9a35f3f299c8623556c1f85193ab49"`
[INFO] [stdout] 0a8cf6a8cbc01931f407cac11ae538c65d9a35f3f299c8623556c1f85193ab49
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/JosephTLyons/birthday_paradox:/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] 1976c6f11ede495fdd7d16f9a3a9fa0d095b0a43438ecc493a7a1c2aecabc3e7
[INFO] running `"docker" "start" "-a" "1976c6f11ede495fdd7d16f9a3a9fa0d095b0a43438ecc493a7a1c2aecabc3e7"`
[INFO] [stderr]    Compiling birthday_paradox v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "1976c6f11ede495fdd7d16f9a3a9fa0d095b0a43438ecc493a7a1c2aecabc3e7"`
[INFO] running `"docker" "rm" "-f" "1976c6f11ede495fdd7d16f9a3a9fa0d095b0a43438ecc493a7a1c2aecabc3e7"`
[INFO] [stdout] 1976c6f11ede495fdd7d16f9a3a9fa0d095b0a43438ecc493a7a1c2aecabc3e7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/JosephTLyons/birthday_paradox:/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] 6a032392fdf8eafca0fccebbc4d8d926bb7b03fdc59c23fea012d9c3f68925bc
[INFO] running `"docker" "start" "-a" "6a032392fdf8eafca0fccebbc4d8d926bb7b03fdc59c23fea012d9c3f68925bc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/birthday_paradox-74e49e212d75cf09
[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" "6a032392fdf8eafca0fccebbc4d8d926bb7b03fdc59c23fea012d9c3f68925bc"`
[INFO] running `"docker" "rm" "-f" "6a032392fdf8eafca0fccebbc4d8d926bb7b03fdc59c23fea012d9c3f68925bc"`
[INFO] [stdout] 6a032392fdf8eafca0fccebbc4d8d926bb7b03fdc59c23fea012d9c3f68925bc