[INFO] fetching crate minimal-executor 0.2.0...
[INFO] testing minimal-executor-0.2.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate minimal-executor 0.2.0 into /workspace/builds/worker-107/source
[INFO] validating manifest of crates.io crate minimal-executor 0.2.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate minimal-executor 0.2.0
[INFO] finished tweaking crates.io crate minimal-executor 0.2.0
[INFO] tweaked toml for crates.io crate minimal-executor 0.2.0 written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memoffset v0.6.4
[INFO] [stderr]   Downloaded crossbeam-deque v0.8.1
[INFO] [stderr]   Downloaded pin-project-lite v0.2.7
[INFO] [stderr]   Downloaded futures-macro v0.3.17
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.5
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.7
[INFO] [stderr]   Downloaded futures-io v0.3.17
[INFO] [stderr]   Downloaded futures-executor v0.3.17
[INFO] [stderr]   Downloaded crossbeam-queue v0.3.2
[INFO] [stderr]   Downloaded futures-task v0.3.17
[INFO] [stderr]   Downloaded slab v0.4.4
[INFO] [stderr]   Downloaded futures v0.3.17
[INFO] [stderr]   Downloaded crossbeam v0.8.1
[INFO] [stderr]   Downloaded futures-sink v0.3.17
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.1
[INFO] [stderr]   Downloaded futures-channel v0.3.17
[INFO] [stderr]   Downloaded memchr v2.4.1
[INFO] [stderr]   Downloaded futures-util v0.3.17
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.5
[INFO] [stderr]   Downloaded futures-core v0.3.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 530ec84ba02a3104bbcb0a0568db580143724ef1eddd8dae44a5314b320fbeb3
[INFO] running `Command { std: "docker" "start" "-a" "530ec84ba02a3104bbcb0a0568db580143724ef1eddd8dae44a5314b320fbeb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "530ec84ba02a3104bbcb0a0568db580143724ef1eddd8dae44a5314b320fbeb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "530ec84ba02a3104bbcb0a0568db580143724ef1eddd8dae44a5314b320fbeb3", kill_on_drop: false }`
[INFO] [stdout] 530ec84ba02a3104bbcb0a0568db580143724ef1eddd8dae44a5314b320fbeb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3921fa406eb7dfa5e6ef113ffcaa9184d189f62efe59e14b690803fd6fb5890
[INFO] running `Command { std: "docker" "start" "-a" "e3921fa406eb7dfa5e6ef113ffcaa9184d189f62efe59e14b690803fd6fb5890", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]    Compiling futures-io v0.3.17
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling crossbeam v0.8.1
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling minimal-executor v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.32s
[INFO] running `Command { std: "docker" "inspect" "e3921fa406eb7dfa5e6ef113ffcaa9184d189f62efe59e14b690803fd6fb5890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3921fa406eb7dfa5e6ef113ffcaa9184d189f62efe59e14b690803fd6fb5890", kill_on_drop: false }`
[INFO] [stdout] e3921fa406eb7dfa5e6ef113ffcaa9184d189f62efe59e14b690803fd6fb5890
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09df59a958c707e6c27da479b0ea318dc4c3a4b4bd39251b218d78c1748c00c1
[INFO] running `Command { std: "docker" "start" "-a" "09df59a958c707e6c27da479b0ea318dc4c3a4b4bd39251b218d78c1748c00c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling minimal-executor v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "09df59a958c707e6c27da479b0ea318dc4c3a4b4bd39251b218d78c1748c00c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09df59a958c707e6c27da479b0ea318dc4c3a4b4bd39251b218d78c1748c00c1", kill_on_drop: false }`
[INFO] [stdout] 09df59a958c707e6c27da479b0ea318dc4c3a4b4bd39251b218d78c1748c00c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4669798eed6c477f3873f86383c06e5bb4b823db1c9f1d0d0db8806afba99c44
[INFO] running `Command { std: "docker" "start" "-a" "4669798eed6c477f3873f86383c06e5bb4b823db1c9f1d0d0db8806afba99c44", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.57s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/minimal_executor-32f1516497875a03)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/local_pool.rs (/opt/rustwide/target/debug/deps/local_pool-bda489b03fae1508)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test run_until_single_future ... ok
[INFO] [stdout] test run_spawn_many ... ok
[INFO] [stdout] test try_run_one_returns_if_empty ... ok
[INFO] [stdout] test run_returns_if_empty ... ok
[INFO] [stdout] test try_run_one_executes_one_ready ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests minimal-executor
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/local_pool.rs - local_pool::LocalPool::run (line 62) ... ok
[INFO] [stdout] test src/local_pool.rs - local_pool::LocalPool::try_run_one (line 93) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.44s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4669798eed6c477f3873f86383c06e5bb4b823db1c9f1d0d0db8806afba99c44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4669798eed6c477f3873f86383c06e5bb4b823db1c9f1d0d0db8806afba99c44", kill_on_drop: false }`
[INFO] [stdout] 4669798eed6c477f3873f86383c06e5bb4b823db1c9f1d0d0db8806afba99c44