[INFO] crate stoppable_thread 0.2.1 is already in cache
[INFO] extracting crate stoppable_thread 0.2.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/stoppable_thread/0.2.1
[INFO] extracting crate stoppable_thread 0.2.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/stoppable_thread/0.2.1
[INFO] validating manifest of stoppable_thread-0.2.1 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 stoppable_thread-0.2.1 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 stoppable_thread-0.2.1
[INFO] finished frobbing stoppable_thread-0.2.1
[INFO] frobbed toml for stoppable_thread-0.2.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/stoppable_thread/0.2.1/Cargo.toml
[INFO] started frobbing stoppable_thread-0.2.1
[INFO] finished frobbing stoppable_thread-0.2.1
[INFO] frobbed toml for stoppable_thread-0.2.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/stoppable_thread/0.2.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 stoppable_thread-0.2.1 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/stoppable_thread/0.2.1:/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] def1ccffab40a4f60288cf989e8ecc4cdbef0db4f9aa01806a13d610328073cd
[INFO] running `"docker" "start" "-a" "def1ccffab40a4f60288cf989e8ecc4cdbef0db4f9aa01806a13d610328073cd"`
[INFO] [stderr]    Compiling stoppable_thread v0.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "def1ccffab40a4f60288cf989e8ecc4cdbef0db4f9aa01806a13d610328073cd"`
[INFO] running `"docker" "rm" "-f" "def1ccffab40a4f60288cf989e8ecc4cdbef0db4f9aa01806a13d610328073cd"`
[INFO] [stdout] def1ccffab40a4f60288cf989e8ecc4cdbef0db4f9aa01806a13d610328073cd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/stoppable_thread/0.2.1:/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] 984093f66442035a13e51a72a6aee05679275c7998e69197575b6345d992fe07
[INFO] running `"docker" "start" "-a" "984093f66442035a13e51a72a6aee05679275c7998e69197575b6345d992fe07"`
[INFO] [stderr]    Compiling stoppable_thread v0.2.1 (/opt/crater/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 1.17s
[INFO] running `"docker" "inspect" "984093f66442035a13e51a72a6aee05679275c7998e69197575b6345d992fe07"`
[INFO] running `"docker" "rm" "-f" "984093f66442035a13e51a72a6aee05679275c7998e69197575b6345d992fe07"`
[INFO] [stdout] 984093f66442035a13e51a72a6aee05679275c7998e69197575b6345d992fe07
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/stoppable_thread/0.2.1:/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] 98dd532871c2d5798e2aaf6246e601e1590d4c2591f33d504a69158d571a37b3
[INFO] running `"docker" "start" "-a" "98dd532871c2d5798e2aaf6246e601e1590d4c2591f33d504a69158d571a37b3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/stoppable_thread-2d5df326327c5408
[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" "98dd532871c2d5798e2aaf6246e601e1590d4c2591f33d504a69158d571a37b3"`
[INFO] running `"docker" "rm" "-f" "98dd532871c2d5798e2aaf6246e601e1590d4c2591f33d504a69158d571a37b3"`
[INFO] [stdout] 98dd532871c2d5798e2aaf6246e601e1590d4c2591f33d504a69158d571a37b3