[INFO] updating cached repository yoshuawuyts/playground-failure
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/yoshuawuyts/playground-failure
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/yoshuawuyts/playground-failure" "work/ex/beta-1.38-1/sources/1.37.0/gh/yoshuawuyts/playground-failure"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/yoshuawuyts/playground-failure'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/yoshuawuyts/playground-failure" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yoshuawuyts/playground-failure"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yoshuawuyts/playground-failure'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 323bcd379523119b67f27c84d459296673ac2e67
[INFO] sha for GitHub repo yoshuawuyts/playground-failure: 323bcd379523119b67f27c84d459296673ac2e67
[INFO] validating manifest of yoshuawuyts/playground-failure 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 yoshuawuyts/playground-failure 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 yoshuawuyts/playground-failure
[INFO] finished frobbing yoshuawuyts/playground-failure
[INFO] frobbed toml for yoshuawuyts/playground-failure written to work/ex/beta-1.38-1/sources/1.37.0/gh/yoshuawuyts/playground-failure/Cargo.toml
[INFO] started frobbing yoshuawuyts/playground-failure
[INFO] finished frobbing yoshuawuyts/playground-failure
[INFO] frobbed toml for yoshuawuyts/playground-failure written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yoshuawuyts/playground-failure/Cargo.toml
[INFO] crate yoshuawuyts/playground-failure 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 yoshuawuyts/playground-failure 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/yoshuawuyts/playground-failure:/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] a036beae158f23c270df836aa9087bef1a4d1403747986f3762ad40574fa9472
[INFO] running `"docker" "start" "-a" "a036beae158f23c270df836aa9087bef1a4d1403747986f3762ad40574fa9472"`
[INFO] [stderr]    Compiling cc v1.0.4
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling backtrace v0.3.5
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling playground-failure v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.30s
[INFO] running `"docker" "inspect" "a036beae158f23c270df836aa9087bef1a4d1403747986f3762ad40574fa9472"`
[INFO] running `"docker" "rm" "-f" "a036beae158f23c270df836aa9087bef1a4d1403747986f3762ad40574fa9472"`
[INFO] [stdout] a036beae158f23c270df836aa9087bef1a4d1403747986f3762ad40574fa9472
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/yoshuawuyts/playground-failure:/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] f361776ae27f719321cc31e44c9332e65e9a4c54b93d402ba3a21f05806197cf
[INFO] running `"docker" "start" "-a" "f361776ae27f719321cc31e44c9332e65e9a4c54b93d402ba3a21f05806197cf"`
[INFO] [stderr]    Compiling playground-failure v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `"docker" "inspect" "f361776ae27f719321cc31e44c9332e65e9a4c54b93d402ba3a21f05806197cf"`
[INFO] running `"docker" "rm" "-f" "f361776ae27f719321cc31e44c9332e65e9a4c54b93d402ba3a21f05806197cf"`
[INFO] [stdout] f361776ae27f719321cc31e44c9332e65e9a4c54b93d402ba3a21f05806197cf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/yoshuawuyts/playground-failure:/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] ee046631c0163b7496822b113172a9589cb1a52e816ca0d07e40262f9878adba
[INFO] running `"docker" "start" "-a" "ee046631c0163b7496822b113172a9589cb1a52e816ca0d07e40262f9878adba"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lib-3c70548e62f5f643
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/playground_failure-c122899741b461c4
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests lib
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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] [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" "ee046631c0163b7496822b113172a9589cb1a52e816ca0d07e40262f9878adba"`
[INFO] running `"docker" "rm" "-f" "ee046631c0163b7496822b113172a9589cb1a52e816ca0d07e40262f9878adba"`
[INFO] [stdout] ee046631c0163b7496822b113172a9589cb1a52e816ca0d07e40262f9878adba