[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 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/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] ec8c3dfb20d7241f2e7bf4ea5a340c32d385eaf8908bc03e66517305ae9fc25e
[INFO] running `"docker" "start" "-a" "ec8c3dfb20d7241f2e7bf4ea5a340c32d385eaf8908bc03e66517305ae9fc25e"`
[INFO] [stderr]    Compiling number_guessing v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "ec8c3dfb20d7241f2e7bf4ea5a340c32d385eaf8908bc03e66517305ae9fc25e"`
[INFO] running `"docker" "rm" "-f" "ec8c3dfb20d7241f2e7bf4ea5a340c32d385eaf8908bc03e66517305ae9fc25e"`
[INFO] [stdout] ec8c3dfb20d7241f2e7bf4ea5a340c32d385eaf8908bc03e66517305ae9fc25e
[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/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] e59af6d0ec061e619fc7d380331160ace455eb963b2ab4906661749e261615b5
[INFO] running `"docker" "start" "-a" "e59af6d0ec061e619fc7d380331160ace455eb963b2ab4906661749e261615b5"`
[INFO] [stderr]    Compiling number_guessing v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "e59af6d0ec061e619fc7d380331160ace455eb963b2ab4906661749e261615b5"`
[INFO] running `"docker" "rm" "-f" "e59af6d0ec061e619fc7d380331160ace455eb963b2ab4906661749e261615b5"`
[INFO] [stdout] e59af6d0ec061e619fc7d380331160ace455eb963b2ab4906661749e261615b5
[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/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 4d1f6cd1f31741755a86e44d0a9417e8f01b3fe50b52d83902d2a62cad71e50f
[INFO] running `"docker" "start" "-a" "4d1f6cd1f31741755a86e44d0a9417e8f01b3fe50b52d83902d2a62cad71e50f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/number_guessing-936815a59b608f47
[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" "4d1f6cd1f31741755a86e44d0a9417e8f01b3fe50b52d83902d2a62cad71e50f"`
[INFO] running `"docker" "rm" "-f" "4d1f6cd1f31741755a86e44d0a9417e8f01b3fe50b52d83902d2a62cad71e50f"`
[INFO] [stdout] 4d1f6cd1f31741755a86e44d0a9417e8f01b3fe50b52d83902d2a62cad71e50f