[INFO] crate stoppable_thread 0.2.1 is already in cache
[INFO] testing stoppable_thread-0.2.1 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate stoppable_thread 0.2.1 into work/builds/worker-6/source
[INFO] validating manifest of crates.io crate stoppable_thread 0.2.1 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate stoppable_thread 0.2.1
[INFO] finished tweaking crates.io crate stoppable_thread 0.2.1
[INFO] tweaked toml for crates.io crate stoppable_thread 0.2.1 written to work/builds/worker-6/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 600929eed419c4845b6690608832df833a946e5c3a867dc1bedb279ab246aff2
[INFO] running `"docker" "start" "-a" "600929eed419c4845b6690608832df833a946e5c3a867dc1bedb279ab246aff2"`
[INFO] [stderr]    Compiling stoppable_thread v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `"docker" "inspect" "600929eed419c4845b6690608832df833a946e5c3a867dc1bedb279ab246aff2"`
[INFO] running `"docker" "rm" "-f" "600929eed419c4845b6690608832df833a946e5c3a867dc1bedb279ab246aff2"`
[INFO] [stdout] 600929eed419c4845b6690608832df833a946e5c3a867dc1bedb279ab246aff2
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/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" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4b3b38db996f527ed90250e180a7cd7ca24bbbefafaf5dd5a2e40c69e561fd41
[INFO] running `"docker" "start" "-a" "4b3b38db996f527ed90250e180a7cd7ca24bbbefafaf5dd5a2e40c69e561fd41"`
[INFO] [stderr]    Compiling stoppable_thread v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `stopping`
[INFO] [stderr]    --> src/lib.rs:225:13
[INFO] [stderr]     |
[INFO] [stderr] 225 |         let stopping = Stopping::new(spawn(move |stopped|
[INFO] [stderr]     |             ^^^^^^^^ help: consider prefixing with an underscore: `_stopping`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `joining`
[INFO] [stderr]    --> src/lib.rs:229:13
[INFO] [stderr]     |
[INFO] [stderr] 229 |         let joining = Joining::new(spawn(move |stopped|
[INFO] [stderr]     |             ^^^^^^^ help: consider prefixing with an underscore: `_joining`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `"docker" "inspect" "4b3b38db996f527ed90250e180a7cd7ca24bbbefafaf5dd5a2e40c69e561fd41"`
[INFO] running `"docker" "rm" "-f" "4b3b38db996f527ed90250e180a7cd7ca24bbbefafaf5dd5a2e40c69e561fd41"`
[INFO] [stdout] 4b3b38db996f527ed90250e180a7cd7ca24bbbefafaf5dd5a2e40c69e561fd41
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/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" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] ca1f9a76cded59c831155d4887660ad97cc8c84628c69a9139eb699b292100db
[INFO] running `"docker" "start" "-a" "ca1f9a76cded59c831155d4887660ad97cc8c84628c69a9139eb699b292100db"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/stoppable_thread-0e9e9c8557f55dc5
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_stoppable_thead ... ok
[INFO] [stdout] test test_guard ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stoppable_thread
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 16) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "ca1f9a76cded59c831155d4887660ad97cc8c84628c69a9139eb699b292100db"`
[INFO] running `"docker" "rm" "-f" "ca1f9a76cded59c831155d4887660ad97cc8c84628c69a9139eb699b292100db"`
[INFO] [stdout] ca1f9a76cded59c831155d4887660ad97cc8c84628c69a9139eb699b292100db