[INFO] fetching crate async_executors 0.4.2...
[INFO] checking async_executors-0.4.2 against 1.55.0 for beta-1.56-3
[INFO] extracting crate async_executors 0.4.2 into /workspace/builds/worker-109/source
[INFO] validating manifest of crates.io crate async_executors 0.4.2 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_executors 0.4.2
[INFO] removed 10 missing examples
[INFO] finished tweaking crates.io crate async_executors 0.4.2
[INFO] tweaked toml for crates.io crate async_executors 0.4.2 written to /workspace/builds/worker-109/source/Cargo.toml
[INFO] crate crates.io crate async_executors 0.4.2 already has a lockfile, it will not be regenerated
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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] 1d3a87fbffee34e2965322991c738feb84d8ee242b62e79c5b5a88ebe0724dc0
[INFO] running `Command { std: "docker" "start" "-a" "1d3a87fbffee34e2965322991c738feb84d8ee242b62e79c5b5a88ebe0724dc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d3a87fbffee34e2965322991c738feb84d8ee242b62e79c5b5a88ebe0724dc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d3a87fbffee34e2965322991c738feb84d8ee242b62e79c5b5a88ebe0724dc0", kill_on_drop: false }`
[INFO] [stdout] 1d3a87fbffee34e2965322991c738feb84d8ee242b62e79c5b5a88ebe0724dc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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] 3d0ff2a86449aaf524206bad10f5534b49e17df5d20bf4353c84803dcfd46fe2
[INFO] running `Command { std: "docker" "start" "-a" "3d0ff2a86449aaf524206bad10f5534b49e17df5d20bf4353c84803dcfd46fe2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling libc v0.2.96
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling semver v1.0.3
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling tokio v1.6.1
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking sharded-slab v0.1.1
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking tracing-subscriber v0.2.18
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]    Compiling async_executors v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling blanket v0.2.0
[INFO] [stderr]    Compiling trait-set v0.2.0
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.63s
[INFO] running `Command { std: "docker" "inspect" "3d0ff2a86449aaf524206bad10f5534b49e17df5d20bf4353c84803dcfd46fe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d0ff2a86449aaf524206bad10f5534b49e17df5d20bf4353c84803dcfd46fe2", kill_on_drop: false }`
[INFO] [stdout] 3d0ff2a86449aaf524206bad10f5534b49e17df5d20bf4353c84803dcfd46fe2
