[INFO] fetching crate reductor 0.0.4...
[INFO] checking reductor-0.0.4 against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] extracting crate reductor 0.0.4 into /workspace/builds/worker-119/source
[INFO] validating manifest of crates.io crate reductor 0.0.4 on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate reductor 0.0.4
[INFO] finished tweaking crates.io crate reductor 0.0.4
[INFO] tweaked toml for crates.io crate reductor 0.0.4 written to /workspace/builds/worker-119/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "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-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 911d830220be7b6e321594aca4c5fc045a71192b776c7a1ac5be30bc96069019
[INFO] running `Command { std: "docker" "start" "-a" "911d830220be7b6e321594aca4c5fc045a71192b776c7a1ac5be30bc96069019", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "911d830220be7b6e321594aca4c5fc045a71192b776c7a1ac5be30bc96069019", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "911d830220be7b6e321594aca4c5fc045a71192b776c7a1ac5be30bc96069019", kill_on_drop: false }`
[INFO] [stdout] 911d830220be7b6e321594aca4c5fc045a71192b776c7a1ac5be30bc96069019
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20b6aa4c297fbffbde5f346f44b09a0f22938f24c386db87cdb2511beca5ccf5
[INFO] running `Command { std: "docker" "start" "-a" "20b6aa4c297fbffbde5f346f44b09a0f22938f24c386db87cdb2511beca5ccf5", kill_on_drop: false }`
[INFO] [stderr]     Checking reductor v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "20b6aa4c297fbffbde5f346f44b09a0f22938f24c386db87cdb2511beca5ccf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20b6aa4c297fbffbde5f346f44b09a0f22938f24c386db87cdb2511beca5ccf5", kill_on_drop: false }`
[INFO] [stdout] 20b6aa4c297fbffbde5f346f44b09a0f22938f24c386db87cdb2511beca5ccf5