[INFO] updating cached repository benschulz/rwmutex
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/benschulz/rwmutex
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/benschulz/rwmutex" "work/ex/beta-1.38-1/sources/1.37.0/gh/benschulz/rwmutex"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/benschulz/rwmutex'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/benschulz/rwmutex" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/benschulz/rwmutex"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/benschulz/rwmutex'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c00025890fc4ecf743fdb853ff1ee34598dd33b7
[INFO] sha for GitHub repo benschulz/rwmutex: c00025890fc4ecf743fdb853ff1ee34598dd33b7
[INFO] validating manifest of benschulz/rwmutex 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 benschulz/rwmutex 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 benschulz/rwmutex
[INFO] finished frobbing benschulz/rwmutex
[INFO] frobbed toml for benschulz/rwmutex written to work/ex/beta-1.38-1/sources/1.37.0/gh/benschulz/rwmutex/Cargo.toml
[INFO] started frobbing benschulz/rwmutex
[INFO] finished frobbing benschulz/rwmutex
[INFO] frobbed toml for benschulz/rwmutex written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/benschulz/rwmutex/Cargo.toml
[INFO] crate benschulz/rwmutex 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 benschulz/rwmutex 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/benschulz/rwmutex:/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] 3304f0c0b80ab35dec42275f9e8781037befca37c8c42cb29a38f7fd39428a74
[INFO] running `"docker" "start" "-a" "3304f0c0b80ab35dec42275f9e8781037befca37c8c42cb29a38f7fd39428a74"`
[INFO] [stderr]    Compiling rwmutex v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `"docker" "inspect" "3304f0c0b80ab35dec42275f9e8781037befca37c8c42cb29a38f7fd39428a74"`
[INFO] running `"docker" "rm" "-f" "3304f0c0b80ab35dec42275f9e8781037befca37c8c42cb29a38f7fd39428a74"`
[INFO] [stdout] 3304f0c0b80ab35dec42275f9e8781037befca37c8c42cb29a38f7fd39428a74
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/benschulz/rwmutex:/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] 8c56df23a37cd4e6b40dbfc3a76cf65ea16959fdc764350d5f7e57ac03a91a46
[INFO] running `"docker" "start" "-a" "8c56df23a37cd4e6b40dbfc3a76cf65ea16959fdc764350d5f7e57ac03a91a46"`
[INFO] [stderr]    Compiling rwmutex v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "8c56df23a37cd4e6b40dbfc3a76cf65ea16959fdc764350d5f7e57ac03a91a46"`
[INFO] running `"docker" "rm" "-f" "8c56df23a37cd4e6b40dbfc3a76cf65ea16959fdc764350d5f7e57ac03a91a46"`
[INFO] [stdout] 8c56df23a37cd4e6b40dbfc3a76cf65ea16959fdc764350d5f7e57ac03a91a46
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/benschulz/rwmutex:/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] b16e3800e31400e16d5835ab6b92a8f8ed10be0a8589846cfa67dfc63a220e4f
[INFO] running `"docker" "start" "-a" "b16e3800e31400e16d5835ab6b92a8f8ed10be0a8589846cfa67dfc63a220e4f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rwmutex-08f303eb7abde6d5
[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 rwmutex
[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" "b16e3800e31400e16d5835ab6b92a8f8ed10be0a8589846cfa67dfc63a220e4f"`
[INFO] running `"docker" "rm" "-f" "b16e3800e31400e16d5835ab6b92a8f8ed10be0a8589846cfa67dfc63a220e4f"`
[INFO] [stdout] b16e3800e31400e16d5835ab6b92a8f8ed10be0a8589846cfa67dfc63a220e4f