[INFO] updating cached repository Assstarte/rust_playground
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Assstarte/rust_playground
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Assstarte/rust_playground" "work/ex/beta-1.38-1/sources/1.37.0/gh/Assstarte/rust_playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Assstarte/rust_playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Assstarte/rust_playground" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Assstarte/rust_playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Assstarte/rust_playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8ee673a857c787e2ece9618336da5579c61d13c6
[INFO] sha for GitHub repo Assstarte/rust_playground: 8ee673a857c787e2ece9618336da5579c61d13c6
[INFO] validating manifest of Assstarte/rust_playground 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 Assstarte/rust_playground 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 Assstarte/rust_playground
[INFO] finished frobbing Assstarte/rust_playground
[INFO] frobbed toml for Assstarte/rust_playground written to work/ex/beta-1.38-1/sources/1.37.0/gh/Assstarte/rust_playground/Cargo.toml
[INFO] started frobbing Assstarte/rust_playground
[INFO] finished frobbing Assstarte/rust_playground
[INFO] frobbed toml for Assstarte/rust_playground written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Assstarte/rust_playground/Cargo.toml
[INFO] crate Assstarte/rust_playground 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 Assstarte/rust_playground 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-0/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/Assstarte/rust_playground:/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] b6ffe148fbe9e1672f8b503df27b7b9bc92b44b15bd14b7a9a0d96d5a945b7fa
[INFO] running `"docker" "start" "-a" "b6ffe148fbe9e1672f8b503df27b7b9bc92b44b15bd14b7a9a0d96d5a945b7fa"`
[INFO] [stderr]    Compiling rust_playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "b6ffe148fbe9e1672f8b503df27b7b9bc92b44b15bd14b7a9a0d96d5a945b7fa"`
[INFO] running `"docker" "rm" "-f" "b6ffe148fbe9e1672f8b503df27b7b9bc92b44b15bd14b7a9a0d96d5a945b7fa"`
[INFO] [stdout] b6ffe148fbe9e1672f8b503df27b7b9bc92b44b15bd14b7a9a0d96d5a945b7fa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/Assstarte/rust_playground:/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] d4a1053feb71494b12b3515907e8f9ae298f6581027c79d1d77d7c04d507d3e4
[INFO] running `"docker" "start" "-a" "d4a1053feb71494b12b3515907e8f9ae298f6581027c79d1d77d7c04d507d3e4"`
[INFO] [stderr]    Compiling rust_playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `"docker" "inspect" "d4a1053feb71494b12b3515907e8f9ae298f6581027c79d1d77d7c04d507d3e4"`
[INFO] running `"docker" "rm" "-f" "d4a1053feb71494b12b3515907e8f9ae298f6581027c79d1d77d7c04d507d3e4"`
[INFO] [stdout] d4a1053feb71494b12b3515907e8f9ae298f6581027c79d1d77d7c04d507d3e4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/Assstarte/rust_playground:/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] a0b70b21937af9ff6b9fc0db4bb2d2b45b419181e60e6ccf6bcf6199afb1deec
[INFO] running `"docker" "start" "-a" "a0b70b21937af9ff6b9fc0db4bb2d2b45b419181e60e6ccf6bcf6199afb1deec"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_playground-205785f2293616ae
[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" "a0b70b21937af9ff6b9fc0db4bb2d2b45b419181e60e6ccf6bcf6199afb1deec"`
[INFO] running `"docker" "rm" "-f" "a0b70b21937af9ff6b9fc0db4bb2d2b45b419181e60e6ccf6bcf6199afb1deec"`
[INFO] [stdout] a0b70b21937af9ff6b9fc0db4bb2d2b45b419181e60e6ccf6bcf6199afb1deec