[INFO] fetching crate stopper 0.2.0...
[INFO] testing stopper-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate stopper 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate stopper 0.2.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stopper 0.2.0
[INFO] finished tweaking crates.io crate stopper 0.2.0
[INFO] tweaked toml for crates.io crate stopper 0.2.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a0236807ed5d2a7b3669710706b4322e05079994fa861662f68772779675b919
[INFO] running `Command { std: "docker" "start" "-a" "a0236807ed5d2a7b3669710706b4322e05079994fa861662f68772779675b919", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0236807ed5d2a7b3669710706b4322e05079994fa861662f68772779675b919", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0236807ed5d2a7b3669710706b4322e05079994fa861662f68772779675b919", kill_on_drop: false }`
[INFO] [stdout] a0236807ed5d2a7b3669710706b4322e05079994fa861662f68772779675b919
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d8a7b6f8283dee8dfa863a74e640d2e042c7df6f710b9419c9d87e940e006aa
[INFO] running `Command { std: "docker" "start" "-a" "1d8a7b6f8283dee8dfa863a74e640d2e042c7df6f710b9419c9d87e940e006aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling waker-set v0.2.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling pin-project v1.0.8
[INFO] [stderr]    Compiling stopper v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.59s
[INFO] running `Command { std: "docker" "inspect" "1d8a7b6f8283dee8dfa863a74e640d2e042c7df6f710b9419c9d87e940e006aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d8a7b6f8283dee8dfa863a74e640d2e042c7df6f710b9419c9d87e940e006aa", kill_on_drop: false }`
[INFO] [stdout] 1d8a7b6f8283dee8dfa863a74e640d2e042c7df6f710b9419c9d87e940e006aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d68c39582911997359079689403faa00d4bc4a191849ed086c762d3b0d17a65
[INFO] running `Command { std: "docker" "start" "-a" "3d68c39582911997359079689403faa00d4bc4a191849ed086c762d3b0d17a65", kill_on_drop: false }`
[INFO] [stderr]    Compiling polling v2.1.0
[INFO] [stderr]    Compiling socket2 v0.4.1
[INFO] [stderr]    Compiling async-io v1.6.0
[INFO] [stderr]    Compiling stopper v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.82s
[INFO] running `Command { std: "docker" "inspect" "3d68c39582911997359079689403faa00d4bc4a191849ed086c762d3b0d17a65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d68c39582911997359079689403faa00d4bc4a191849ed086c762d3b0d17a65", kill_on_drop: false }`
[INFO] [stdout] 3d68c39582911997359079689403faa00d4bc4a191849ed086c762d3b0d17a65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f0939a3af51b18f01aae429265317b6af3c7c9bdfd6903aae089cb1889e128d6
[INFO] running `Command { std: "docker" "start" "-a" "f0939a3af51b18f01aae429265317b6af3c7c9bdfd6903aae089cb1889e128d6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stopper-a14d872c31950d77)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests stopper
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - Stopper::is_stopped (line 57) ... ok
[INFO] [stdout] test src/lib.rs - Stopper::stop_stream (line 73) ... ok
[INFO] [stdout] test src/lib.rs - Stopper::stop_future (line 101) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.94s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f0939a3af51b18f01aae429265317b6af3c7c9bdfd6903aae089cb1889e128d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0939a3af51b18f01aae429265317b6af3c7c9bdfd6903aae089cb1889e128d6", kill_on_drop: false }`
[INFO] [stdout] f0939a3af51b18f01aae429265317b6af3c7c9bdfd6903aae089cb1889e128d6