[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 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 46dfada6b1d5a2854bb751f26ccf4e2bceb9b4e462e8df6111a18825798e98f1
[INFO] running `"docker" "start" "-a" "46dfada6b1d5a2854bb751f26ccf4e2bceb9b4e462e8df6111a18825798e98f1"`
[INFO] [stderr]    Compiling getrandom v0.1.6
[INFO] [stderr]    Compiling rand_core v0.5.0
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[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 6.42s
[INFO] running `"docker" "inspect" "46dfada6b1d5a2854bb751f26ccf4e2bceb9b4e462e8df6111a18825798e98f1"`
[INFO] running `"docker" "rm" "-f" "46dfada6b1d5a2854bb751f26ccf4e2bceb9b4e462e8df6111a18825798e98f1"`
[INFO] [stdout] 46dfada6b1d5a2854bb751f26ccf4e2bceb9b4e462e8df6111a18825798e98f1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5a88531a224db8a948b095ed653e6850ef25cc3cac70118845f1a5ced2cd94d1
[INFO] running `"docker" "start" "-a" "5a88531a224db8a948b095ed653e6850ef25cc3cac70118845f1a5ced2cd94d1"`
[INFO] [stderr]    Compiling birthday_paradox v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "5a88531a224db8a948b095ed653e6850ef25cc3cac70118845f1a5ced2cd94d1"`
[INFO] running `"docker" "rm" "-f" "5a88531a224db8a948b095ed653e6850ef25cc3cac70118845f1a5ced2cd94d1"`
[INFO] [stdout] 5a88531a224db8a948b095ed653e6850ef25cc3cac70118845f1a5ced2cd94d1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] aa01554d957d33b48850f99c19fb51883776bd0103a359342323b080cb383799
[INFO] running `"docker" "start" "-a" "aa01554d957d33b48850f99c19fb51883776bd0103a359342323b080cb383799"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/birthday_paradox-e8e4014771a39bcb
[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" "aa01554d957d33b48850f99c19fb51883776bd0103a359342323b080cb383799"`
[INFO] running `"docker" "rm" "-f" "aa01554d957d33b48850f99c19fb51883776bd0103a359342323b080cb383799"`
[INFO] [stdout] aa01554d957d33b48850f99c19fb51883776bd0103a359342323b080cb383799