[INFO] updating cached repository arashout/playground
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/arashout/playground
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/arashout/playground" "work/ex/beta-1.38-1/sources/1.37.0/gh/arashout/playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/arashout/playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/arashout/playground" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arashout/playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arashout/playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 11be5b76457cd903bceb272292489f2d181303fe
[INFO] sha for GitHub repo arashout/playground: 11be5b76457cd903bceb272292489f2d181303fe
[INFO] validating manifest of arashout/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 arashout/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 arashout/playground
[INFO] finished frobbing arashout/playground
[INFO] frobbed toml for arashout/playground written to work/ex/beta-1.38-1/sources/1.37.0/gh/arashout/playground/Cargo.toml
[INFO] started frobbing arashout/playground
[INFO] finished frobbing arashout/playground
[INFO] frobbed toml for arashout/playground written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arashout/playground/Cargo.toml
[INFO] crate arashout/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 arashout/playground 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/arashout/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 3cc7693fd0f6d2afc67582c6f8ce4675fed0bb4e5566a4be45686ef7c5514b5d
[INFO] running `"docker" "start" "-a" "3cc7693fd0f6d2afc67582c6f8ce4675fed0bb4e5566a4be45686ef7c5514b5d"`
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "3cc7693fd0f6d2afc67582c6f8ce4675fed0bb4e5566a4be45686ef7c5514b5d"`
[INFO] running `"docker" "rm" "-f" "3cc7693fd0f6d2afc67582c6f8ce4675fed0bb4e5566a4be45686ef7c5514b5d"`
[INFO] [stdout] 3cc7693fd0f6d2afc67582c6f8ce4675fed0bb4e5566a4be45686ef7c5514b5d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/arashout/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 02ca559fd3db7ebb43eca269915519a96c2203bfddd226d421bb2b224856ea4a
[INFO] running `"docker" "start" "-a" "02ca559fd3db7ebb43eca269915519a96c2203bfddd226d421bb2b224856ea4a"`
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "02ca559fd3db7ebb43eca269915519a96c2203bfddd226d421bb2b224856ea4a"`
[INFO] running `"docker" "rm" "-f" "02ca559fd3db7ebb43eca269915519a96c2203bfddd226d421bb2b224856ea4a"`
[INFO] [stdout] 02ca559fd3db7ebb43eca269915519a96c2203bfddd226d421bb2b224856ea4a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/arashout/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] d923d1f22037b18fd79c6caf0baddf47a0d0454a9a2f2c9256c29ae111f820d2
[INFO] running `"docker" "start" "-a" "d923d1f22037b18fd79c6caf0baddf47a0d0454a9a2f2c9256c29ae111f820d2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/playground-ae338ef3eaef561d
[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" "d923d1f22037b18fd79c6caf0baddf47a0d0454a9a2f2c9256c29ae111f820d2"`
[INFO] running `"docker" "rm" "-f" "d923d1f22037b18fd79c6caf0baddf47a0d0454a9a2f2c9256c29ae111f820d2"`
[INFO] [stdout] d923d1f22037b18fd79c6caf0baddf47a0d0454a9a2f2c9256c29ae111f820d2