[INFO] updating cached repository sdbondi/rust-concurrency-examples
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sdbondi/rust-concurrency-examples
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sdbondi/rust-concurrency-examples" "work/ex/beta-1.37-6/sources/1.36.0/gh/sdbondi/rust-concurrency-examples"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/sdbondi/rust-concurrency-examples'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sdbondi/rust-concurrency-examples" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sdbondi/rust-concurrency-examples"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sdbondi/rust-concurrency-examples'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ad950a5e3c0e31b19228510e888af365dc29487d
[INFO] sha for GitHub repo sdbondi/rust-concurrency-examples: ad950a5e3c0e31b19228510e888af365dc29487d
[INFO] validating manifest of sdbondi/rust-concurrency-examples on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sdbondi/rust-concurrency-examples on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sdbondi/rust-concurrency-examples
[INFO] finished frobbing sdbondi/rust-concurrency-examples
[INFO] frobbed toml for sdbondi/rust-concurrency-examples written to work/ex/beta-1.37-6/sources/1.36.0/gh/sdbondi/rust-concurrency-examples/Cargo.toml
[INFO] started frobbing sdbondi/rust-concurrency-examples
[INFO] finished frobbing sdbondi/rust-concurrency-examples
[INFO] frobbed toml for sdbondi/rust-concurrency-examples written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sdbondi/rust-concurrency-examples/Cargo.toml
[INFO] crate sdbondi/rust-concurrency-examples already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing sdbondi/rust-concurrency-examples against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/sdbondi/rust-concurrency-examples:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] ba7c6bf69babce045ce6fd9aef7d581171aea9b3d4d3ef95632884127f29cd3d
[INFO] running `"docker" "start" "-a" "ba7c6bf69babce045ce6fd9aef7d581171aea9b3d4d3ef95632884127f29cd3d"`
[INFO] [stderr]    Compiling concurrency v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "ba7c6bf69babce045ce6fd9aef7d581171aea9b3d4d3ef95632884127f29cd3d"`
[INFO] running `"docker" "rm" "-f" "ba7c6bf69babce045ce6fd9aef7d581171aea9b3d4d3ef95632884127f29cd3d"`
[INFO] [stdout] ba7c6bf69babce045ce6fd9aef7d581171aea9b3d4d3ef95632884127f29cd3d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/sdbondi/rust-concurrency-examples:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] a5d6524c9327792032a4ce58d61cfa4ae912e77abc42d2bc507fdb21e2800019
[INFO] running `"docker" "start" "-a" "a5d6524c9327792032a4ce58d61cfa4ae912e77abc42d2bc507fdb21e2800019"`
[INFO] [stderr]    Compiling concurrency v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.68s
[INFO] running `"docker" "inspect" "a5d6524c9327792032a4ce58d61cfa4ae912e77abc42d2bc507fdb21e2800019"`
[INFO] running `"docker" "rm" "-f" "a5d6524c9327792032a4ce58d61cfa4ae912e77abc42d2bc507fdb21e2800019"`
[INFO] [stdout] a5d6524c9327792032a4ce58d61cfa4ae912e77abc42d2bc507fdb21e2800019
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/sdbondi/rust-concurrency-examples:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] f41161b37e515eb3dea3a348549651897a228a0f50ed73778a97894f4cb9e70f
[INFO] running `"docker" "start" "-a" "f41161b37e515eb3dea3a348549651897a228a0f50ed73778a97894f4cb9e70f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/concurrency-de7a961d3213a423
[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" "f41161b37e515eb3dea3a348549651897a228a0f50ed73778a97894f4cb9e70f"`
[INFO] running `"docker" "rm" "-f" "f41161b37e515eb3dea3a348549651897a228a0f50ed73778a97894f4cb9e70f"`
[INFO] [stdout] f41161b37e515eb3dea3a348549651897a228a0f50ed73778a97894f4cb9e70f