[INFO] updating cached repository bcgodfrey91/common_rust_concepts
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bcgodfrey91/common_rust_concepts
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bcgodfrey91/common_rust_concepts" "work/ex/beta-1.38-1/sources/1.37.0/gh/bcgodfrey91/common_rust_concepts"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/bcgodfrey91/common_rust_concepts'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bcgodfrey91/common_rust_concepts" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bcgodfrey91/common_rust_concepts"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bcgodfrey91/common_rust_concepts'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 94eda782b8bb760a211f6e77cac51fab80dcd8c8
[INFO] sha for GitHub repo bcgodfrey91/common_rust_concepts: 94eda782b8bb760a211f6e77cac51fab80dcd8c8
[INFO] validating manifest of bcgodfrey91/common_rust_concepts 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 bcgodfrey91/common_rust_concepts 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 bcgodfrey91/common_rust_concepts
[INFO] finished frobbing bcgodfrey91/common_rust_concepts
[INFO] frobbed toml for bcgodfrey91/common_rust_concepts written to work/ex/beta-1.38-1/sources/1.37.0/gh/bcgodfrey91/common_rust_concepts/Cargo.toml
[INFO] started frobbing bcgodfrey91/common_rust_concepts
[INFO] finished frobbing bcgodfrey91/common_rust_concepts
[INFO] frobbed toml for bcgodfrey91/common_rust_concepts written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bcgodfrey91/common_rust_concepts/Cargo.toml
[INFO] crate bcgodfrey91/common_rust_concepts 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 bcgodfrey91/common_rust_concepts 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/bcgodfrey91/common_rust_concepts:/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] 64f000084418c293b0f2d512746b205ae9f0c5aa315242eb6460a2512a77dca1
[INFO] running `"docker" "start" "-a" "64f000084418c293b0f2d512746b205ae9f0c5aa315242eb6460a2512a77dca1"`
[INFO] [stderr]    Compiling common_rust_concepts v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `"docker" "inspect" "64f000084418c293b0f2d512746b205ae9f0c5aa315242eb6460a2512a77dca1"`
[INFO] running `"docker" "rm" "-f" "64f000084418c293b0f2d512746b205ae9f0c5aa315242eb6460a2512a77dca1"`
[INFO] [stdout] 64f000084418c293b0f2d512746b205ae9f0c5aa315242eb6460a2512a77dca1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/bcgodfrey91/common_rust_concepts:/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] 28bf8aa94e2cfe2b101714ae145a8e5f4cf211259dc44287ae42eb9d4c718771
[INFO] running `"docker" "start" "-a" "28bf8aa94e2cfe2b101714ae145a8e5f4cf211259dc44287ae42eb9d4c718771"`
[INFO] [stderr]    Compiling common_rust_concepts v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `"docker" "inspect" "28bf8aa94e2cfe2b101714ae145a8e5f4cf211259dc44287ae42eb9d4c718771"`
[INFO] running `"docker" "rm" "-f" "28bf8aa94e2cfe2b101714ae145a8e5f4cf211259dc44287ae42eb9d4c718771"`
[INFO] [stdout] 28bf8aa94e2cfe2b101714ae145a8e5f4cf211259dc44287ae42eb9d4c718771
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/bcgodfrey91/common_rust_concepts:/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] dcfd6d5d9a012f79832f70087d1bae5117f90749b98d8b0d89e99c56dd5bf556
[INFO] running `"docker" "start" "-a" "dcfd6d5d9a012f79832f70087d1bae5117f90749b98d8b0d89e99c56dd5bf556"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/common_rust_concepts-8109465c7f373ee8
[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" "dcfd6d5d9a012f79832f70087d1bae5117f90749b98d8b0d89e99c56dd5bf556"`
[INFO] running `"docker" "rm" "-f" "dcfd6d5d9a012f79832f70087d1bae5117f90749b98d8b0d89e99c56dd5bf556"`
[INFO] [stdout] dcfd6d5d9a012f79832f70087d1bae5117f90749b98d8b0d89e99c56dd5bf556