[INFO] fetching crate stoppable_thread 0.2.1...
[INFO] testing stoppable_thread-0.2.1 against try#ddc023471205c186b40f4bf8ffb598008dbf4885 for pr-87041-1
[INFO] extracting crate stoppable_thread 0.2.1 into /workspace/builds/worker-17/source
[INFO] validating manifest of crates.io crate stoppable_thread 0.2.1 on toolchain ddc023471205c186b40f4bf8ffb598008dbf4885
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddc023471205c186b40f4bf8ffb598008dbf4885" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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 /workspace/builds/worker-17/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddc023471205c186b40f4bf8ffb598008dbf4885" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddc023471205c186b40f4bf8ffb598008dbf4885" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+ddc023471205c186b40f4bf8ffb598008dbf4885" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be6c46503c035dad730b67fda74d5ef08334168b4bf6f64fc9f1e679a1be3e00
[INFO] running `Command { std: "docker" "start" "-a" "be6c46503c035dad730b67fda74d5ef08334168b4bf6f64fc9f1e679a1be3e00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be6c46503c035dad730b67fda74d5ef08334168b4bf6f64fc9f1e679a1be3e00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be6c46503c035dad730b67fda74d5ef08334168b4bf6f64fc9f1e679a1be3e00", kill_on_drop: false }`
[INFO] [stdout] be6c46503c035dad730b67fda74d5ef08334168b4bf6f64fc9f1e679a1be3e00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+ddc023471205c186b40f4bf8ffb598008dbf4885" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b85784d8824580783e9c3dc70282ea61190cd937ae0f4051cde76d5d7b81d4dc
[INFO] running `Command { std: "docker" "start" "-a" "b85784d8824580783e9c3dc70282ea61190cd937ae0f4051cde76d5d7b81d4dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling stoppable_thread v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "b85784d8824580783e9c3dc70282ea61190cd937ae0f4051cde76d5d7b81d4dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b85784d8824580783e9c3dc70282ea61190cd937ae0f4051cde76d5d7b81d4dc", kill_on_drop: false }`
[INFO] [stdout] b85784d8824580783e9c3dc70282ea61190cd937ae0f4051cde76d5d7b81d4dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+ddc023471205c186b40f4bf8ffb598008dbf4885" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 121c10d4fcdd65d2a962f43175db409593433a2b743c43970f7dd7a8fe99e4f2
[INFO] running `Command { std: "docker" "start" "-a" "121c10d4fcdd65d2a962f43175db409593433a2b743c43970f7dd7a8fe99e4f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling stoppable_thread v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `stopping`
[INFO] [stdout]    --> src/lib.rs:225:13
[INFO] [stdout]     |
[INFO] [stdout] 225 |         let stopping = Stopping::new(spawn(move |stopped|
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stopping`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `joining`
[INFO] [stdout]    --> src/lib.rs:229:13
[INFO] [stdout]     |
[INFO] [stdout] 229 |         let joining = Joining::new(spawn(move |stopped|
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_joining`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "121c10d4fcdd65d2a962f43175db409593433a2b743c43970f7dd7a8fe99e4f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "121c10d4fcdd65d2a962f43175db409593433a2b743c43970f7dd7a8fe99e4f2", kill_on_drop: false }`
[INFO] [stdout] 121c10d4fcdd65d2a962f43175db409593433a2b743c43970f7dd7a8fe99e4f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+ddc023471205c186b40f4bf8ffb598008dbf4885" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 244565ca35e7d27ef1b820d8944649ddf0462f6527106289f54f81b179457941
[INFO] running `Command { std: "docker" "start" "-a" "244565ca35e7d27ef1b820d8944649ddf0462f6527106289f54f81b179457941", kill_on_drop: false }`
[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: if this is intentional, prefix it 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: if this is intentional, prefix it with an underscore: `_joining`
[INFO] [stderr] 
[INFO] [stderr] warning: `stoppable_thread` (lib test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stoppable_thread-6223e458ed5a1387)
[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; finished in 0.11s
[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; finished in 0.29s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "244565ca35e7d27ef1b820d8944649ddf0462f6527106289f54f81b179457941", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "244565ca35e7d27ef1b820d8944649ddf0462f6527106289f54f81b179457941", kill_on_drop: false }`
[INFO] [stdout] 244565ca35e7d27ef1b820d8944649ddf0462f6527106289f54f81b179457941