[INFO] fetching crate async-bench 0.2.0...
[INFO] testing async-bench-0.2.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate async-bench 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate async-bench 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 async-bench 0.2.0
[INFO] finished tweaking crates.io crate async-bench 0.2.0
[INFO] tweaked toml for crates.io crate async-bench 0.2.0 written to /workspace/builds/worker-7/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 7fb5a8e2c794695b6505d751eefdc72facafd7ac5f5b70f3944118866b000c25
[INFO] running `Command { std: "docker" "start" "-a" "7fb5a8e2c794695b6505d751eefdc72facafd7ac5f5b70f3944118866b000c25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fb5a8e2c794695b6505d751eefdc72facafd7ac5f5b70f3944118866b000c25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fb5a8e2c794695b6505d751eefdc72facafd7ac5f5b70f3944118866b000c25", kill_on_drop: false }`
[INFO] [stdout] 7fb5a8e2c794695b6505d751eefdc72facafd7ac5f5b70f3944118866b000c25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] ddc0c1bf9ae70fd2998d6112ecf3230316a3dbb1b8376e417186d71ac69859c6
[INFO] running `Command { std: "docker" "start" "-a" "ddc0c1bf9ae70fd2998d6112ecf3230316a3dbb1b8376e417186d71ac69859c6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling async-bench v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "ddc0c1bf9ae70fd2998d6112ecf3230316a3dbb1b8376e417186d71ac69859c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddc0c1bf9ae70fd2998d6112ecf3230316a3dbb1b8376e417186d71ac69859c6", kill_on_drop: false }`
[INFO] [stdout] ddc0c1bf9ae70fd2998d6112ecf3230316a3dbb1b8376e417186d71ac69859c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 47153a4dff78ccfebfbbf080d2878c71278bfec28c26ff4004bce00c9dce61bb
[INFO] running `Command { std: "docker" "start" "-a" "47153a4dff78ccfebfbbf080d2878c71278bfec28c26ff4004bce00c9dce61bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling async-bench v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "47153a4dff78ccfebfbbf080d2878c71278bfec28c26ff4004bce00c9dce61bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47153a4dff78ccfebfbbf080d2878c71278bfec28c26ff4004bce00c9dce61bb", kill_on_drop: false }`
[INFO] [stdout] 47153a4dff78ccfebfbbf080d2878c71278bfec28c26ff4004bce00c9dce61bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] c469fb5d0cdc83c320c9ac93789a250639516700b6bda20d10672d838712a8ef
[INFO] running `Command { std: "docker" "start" "-a" "c469fb5d0cdc83c320c9ac93789a250639516700b6bda20d10672d838712a8ef", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/async_bench-02787e5ab7e55b02)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests async-bench
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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] running `Command { std: "docker" "inspect" "c469fb5d0cdc83c320c9ac93789a250639516700b6bda20d10672d838712a8ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c469fb5d0cdc83c320c9ac93789a250639516700b6bda20d10672d838712a8ef", kill_on_drop: false }`
[INFO] [stdout] c469fb5d0cdc83c320c9ac93789a250639516700b6bda20d10672d838712a8ef