[INFO] updating cached repository https://github.com/benschulz/rwmutex
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c00025890fc4ecf743fdb853ff1ee34598dd33b7
[INFO] testing benschulz/rwmutex against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenschulz%2Frwmutex" "work/builds/worker-8/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/benschulz/rwmutex on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/benschulz/rwmutex
[INFO] finished tweaking git repo https://github.com/benschulz/rwmutex
[INFO] tweaked toml for git repo https://github.com/benschulz/rwmutex written to work/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/benschulz/rwmutex already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] b113d8841391de7a572845ddd28130fddacf15d748d13fec7601ef7e03b5b604
[INFO] running `"docker" "start" "-a" "b113d8841391de7a572845ddd28130fddacf15d748d13fec7601ef7e03b5b604"`
[INFO] [stderr]    Compiling rwmutex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "b113d8841391de7a572845ddd28130fddacf15d748d13fec7601ef7e03b5b604"`
[INFO] running `"docker" "rm" "-f" "b113d8841391de7a572845ddd28130fddacf15d748d13fec7601ef7e03b5b604"`
[INFO] [stdout] b113d8841391de7a572845ddd28130fddacf15d748d13fec7601ef7e03b5b604
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 48c8ae2dcea2056fb15dc1c42a98f476b8f79eff57df2655cc357e30fc5a7cef
[INFO] running `"docker" "start" "-a" "48c8ae2dcea2056fb15dc1c42a98f476b8f79eff57df2655cc357e30fc5a7cef"`
[INFO] [stderr]    Compiling rwmutex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `"docker" "inspect" "48c8ae2dcea2056fb15dc1c42a98f476b8f79eff57df2655cc357e30fc5a7cef"`
[INFO] running `"docker" "rm" "-f" "48c8ae2dcea2056fb15dc1c42a98f476b8f79eff57df2655cc357e30fc5a7cef"`
[INFO] [stdout] 48c8ae2dcea2056fb15dc1c42a98f476b8f79eff57df2655cc357e30fc5a7cef
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 060a8b91225958aa24be10d4fae4edf6f657f9cf6cff47785fab4cc9b5dd5fd7
[INFO] running `"docker" "start" "-a" "060a8b91225958aa24be10d4fae4edf6f657f9cf6cff47785fab4cc9b5dd5fd7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rwmutex-465691477f8daf8a
[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] [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" "060a8b91225958aa24be10d4fae4edf6f657f9cf6cff47785fab4cc9b5dd5fd7"`
[INFO] running `"docker" "rm" "-f" "060a8b91225958aa24be10d4fae4edf6f657f9cf6cff47785fab4cc9b5dd5fd7"`
[INFO] [stdout] 060a8b91225958aa24be10d4fae4edf6f657f9cf6cff47785fab4cc9b5dd5fd7