[INFO] updating cached repository jnferner/number_guessing
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jnferner/number_guessing
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jnferner/number_guessing" "work/ex/beta-1.38-1/sources/1.37.0/gh/jnferner/number_guessing"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jnferner/number_guessing'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jnferner/number_guessing" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jnferner/number_guessing"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jnferner/number_guessing'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 84c42a0b69c05253c605954530b8391fb2620f1a
[INFO] sha for GitHub repo jnferner/number_guessing: 84c42a0b69c05253c605954530b8391fb2620f1a
[INFO] validating manifest of jnferner/number_guessing 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 jnferner/number_guessing 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 jnferner/number_guessing
[INFO] finished frobbing jnferner/number_guessing
[INFO] frobbed toml for jnferner/number_guessing written to work/ex/beta-1.38-1/sources/1.37.0/gh/jnferner/number_guessing/Cargo.toml
[INFO] started frobbing jnferner/number_guessing
[INFO] finished frobbing jnferner/number_guessing
[INFO] frobbed toml for jnferner/number_guessing written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jnferner/number_guessing/Cargo.toml
[INFO] crate jnferner/number_guessing 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 jnferner/number_guessing 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/jnferner/number_guessing:/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] c6f67bada31c62b62161d63d6cb0da36570b350d4474c9d18840dff9a5fadb7a
[INFO] running `"docker" "start" "-a" "c6f67bada31c62b62161d63d6cb0da36570b350d4474c9d18840dff9a5fadb7a"`
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling number_guessing v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.65s
[INFO] running `"docker" "inspect" "c6f67bada31c62b62161d63d6cb0da36570b350d4474c9d18840dff9a5fadb7a"`
[INFO] running `"docker" "rm" "-f" "c6f67bada31c62b62161d63d6cb0da36570b350d4474c9d18840dff9a5fadb7a"`
[INFO] [stdout] c6f67bada31c62b62161d63d6cb0da36570b350d4474c9d18840dff9a5fadb7a
[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/jnferner/number_guessing:/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] b45811a842c9798a7d8882d4c5113c1eae2cdda9e0d044c3c22fac2442b976c1
[INFO] running `"docker" "start" "-a" "b45811a842c9798a7d8882d4c5113c1eae2cdda9e0d044c3c22fac2442b976c1"`
[INFO] [stderr]    Compiling number_guessing v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "b45811a842c9798a7d8882d4c5113c1eae2cdda9e0d044c3c22fac2442b976c1"`
[INFO] running `"docker" "rm" "-f" "b45811a842c9798a7d8882d4c5113c1eae2cdda9e0d044c3c22fac2442b976c1"`
[INFO] [stdout] b45811a842c9798a7d8882d4c5113c1eae2cdda9e0d044c3c22fac2442b976c1
[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/jnferner/number_guessing:/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] 226b96cd5f3b2eeacc80e0b29a8527853abdd36b1db7abed37ada2e8f27f1f3a
[INFO] running `"docker" "start" "-a" "226b96cd5f3b2eeacc80e0b29a8527853abdd36b1db7abed37ada2e8f27f1f3a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/number_guessing-e724b59a0e44f25c
[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" "226b96cd5f3b2eeacc80e0b29a8527853abdd36b1db7abed37ada2e8f27f1f3a"`
[INFO] running `"docker" "rm" "-f" "226b96cd5f3b2eeacc80e0b29a8527853abdd36b1db7abed37ada2e8f27f1f3a"`
[INFO] [stdout] 226b96cd5f3b2eeacc80e0b29a8527853abdd36b1db7abed37ada2e8f27f1f3a