[INFO] fetching crate async-shell 0.1.2...
[INFO] checking async-shell-0.1.2 against 1.55.0 for beta-1.56-3
[INFO] extracting crate async-shell 0.1.2 into /workspace/builds/worker-33/source
[INFO] validating manifest of crates.io crate async-shell 0.1.2 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 async-shell 0.1.2
[INFO] finished tweaking crates.io crate async-shell 0.1.2
[INFO] tweaked toml for crates.io crate async-shell 0.1.2 written to /workspace/builds/worker-33/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] 08c785afb596efb98ea0b2d6b38587f022fab471a42b801138e41da899a921a4
[INFO] running `Command { std: "docker" "start" "-a" "08c785afb596efb98ea0b2d6b38587f022fab471a42b801138e41da899a921a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08c785afb596efb98ea0b2d6b38587f022fab471a42b801138e41da899a921a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08c785afb596efb98ea0b2d6b38587f022fab471a42b801138e41da899a921a4", kill_on_drop: false }`
[INFO] [stdout] 08c785afb596efb98ea0b2d6b38587f022fab471a42b801138e41da899a921a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d895149755437f435e468d9d227ed22038709a091fab4fd1dc6b5e8ca81fd99c
[INFO] running `Command { std: "docker" "start" "-a" "d895149755437f435e468d9d227ed22038709a091fab4fd1dc6b5e8ca81fd99c", 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]    Compiling futures-core v0.3.17
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking futures-io v0.3.17
[INFO] [stderr]     Checking fastrand v1.5.0
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking memchr v2.4.1
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-shell v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.87s
[INFO] running `Command { std: "docker" "inspect" "d895149755437f435e468d9d227ed22038709a091fab4fd1dc6b5e8ca81fd99c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d895149755437f435e468d9d227ed22038709a091fab4fd1dc6b5e8ca81fd99c", kill_on_drop: false }`
[INFO] [stdout] d895149755437f435e468d9d227ed22038709a091fab4fd1dc6b5e8ca81fd99c
