[INFO] updating cached repository yoshuawuyts/playground-threads
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/yoshuawuyts/playground-threads
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/yoshuawuyts/playground-threads" "work/ex/beta-1.38-1/sources/1.37.0/gh/yoshuawuyts/playground-threads"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/yoshuawuyts/playground-threads'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/yoshuawuyts/playground-threads" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yoshuawuyts/playground-threads"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yoshuawuyts/playground-threads'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e9ce366aba91a1dd0b223ffb8b72590b42c7e979
[INFO] sha for GitHub repo yoshuawuyts/playground-threads: e9ce366aba91a1dd0b223ffb8b72590b42c7e979
[INFO] validating manifest of yoshuawuyts/playground-threads 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-threads 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-threads
[INFO] finished frobbing yoshuawuyts/playground-threads
[INFO] frobbed toml for yoshuawuyts/playground-threads written to work/ex/beta-1.38-1/sources/1.37.0/gh/yoshuawuyts/playground-threads/Cargo.toml
[INFO] started frobbing yoshuawuyts/playground-threads
[INFO] finished frobbing yoshuawuyts/playground-threads
[INFO] frobbed toml for yoshuawuyts/playground-threads written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yoshuawuyts/playground-threads/Cargo.toml
[INFO] crate yoshuawuyts/playground-threads 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-threads 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/yoshuawuyts/playground-threads:/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] 2d177647ebc4a8d46aaeceb7e3114880a60ae1d3f9c78b784e05f00a1a164d61
[INFO] running `"docker" "start" "-a" "2d177647ebc4a8d46aaeceb7e3114880a60ae1d3f9c78b784e05f00a1a164d61"`
[INFO] [stderr]    Compiling playground-threads v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `"docker" "inspect" "2d177647ebc4a8d46aaeceb7e3114880a60ae1d3f9c78b784e05f00a1a164d61"`
[INFO] running `"docker" "rm" "-f" "2d177647ebc4a8d46aaeceb7e3114880a60ae1d3f9c78b784e05f00a1a164d61"`
[INFO] [stdout] 2d177647ebc4a8d46aaeceb7e3114880a60ae1d3f9c78b784e05f00a1a164d61
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/yoshuawuyts/playground-threads:/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] 005b6a82a9a7431d8511335818926267e7339116d9be21a00057cdcaf043b63b
[INFO] running `"docker" "start" "-a" "005b6a82a9a7431d8511335818926267e7339116d9be21a00057cdcaf043b63b"`
[INFO] [stderr]    Compiling playground-threads v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `"docker" "inspect" "005b6a82a9a7431d8511335818926267e7339116d9be21a00057cdcaf043b63b"`
[INFO] running `"docker" "rm" "-f" "005b6a82a9a7431d8511335818926267e7339116d9be21a00057cdcaf043b63b"`
[INFO] [stdout] 005b6a82a9a7431d8511335818926267e7339116d9be21a00057cdcaf043b63b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/yoshuawuyts/playground-threads:/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] 3e815940dec05737b7c335647f307f87239c3160d6d0c70c17c127f76e5ca256
[INFO] running `"docker" "start" "-a" "3e815940dec05737b7c335647f307f87239c3160d6d0c70c17c127f76e5ca256"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/playground_threads-a75c0995e50dd67d
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/playground_threads-e5f3c1ca18272fce
[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] [stderr]    Doc-tests playground-threads
[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" "3e815940dec05737b7c335647f307f87239c3160d6d0c70c17c127f76e5ca256"`
[INFO] running `"docker" "rm" "-f" "3e815940dec05737b7c335647f307f87239c3160d6d0c70c17c127f76e5ca256"`
[INFO] [stdout] 3e815940dec05737b7c335647f307f87239c3160d6d0c70c17c127f76e5ca256