[INFO] crate downcast-rs 1.2.0 is already in cache
[INFO] building downcast-rs-1.2.0 against master#d5c88c22807925c189328ef9d923c5d2b11a95b8 for pr-87066-3
[INFO] extracting crate downcast-rs 1.2.0 into /workspace/builds/worker-17/source
[INFO] validating manifest of crates.io crate downcast-rs 1.2.0 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate downcast-rs 1.2.0
[INFO] finished tweaking crates.io crate downcast-rs 1.2.0
[INFO] tweaked toml for crates.io crate downcast-rs 1.2.0 written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "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-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ce3bec2762e26fc604fb07e0bafe854f2405214e321f1645ff0432f029d1e73
[INFO] running `Command { std: "docker" "start" "-a" "8ce3bec2762e26fc604fb07e0bafe854f2405214e321f1645ff0432f029d1e73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ce3bec2762e26fc604fb07e0bafe854f2405214e321f1645ff0432f029d1e73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ce3bec2762e26fc604fb07e0bafe854f2405214e321f1645ff0432f029d1e73", kill_on_drop: false }`
[INFO] [stdout] 8ce3bec2762e26fc604fb07e0bafe854f2405214e321f1645ff0432f029d1e73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76ba922191e495a72eeccd7c7cc92c4b97f4bf875cf7d9594f4567af885928cc
[INFO] running `Command { std: "docker" "start" "-a" "76ba922191e495a72eeccd7c7cc92c4b97f4bf875cf7d9594f4567af885928cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling downcast-rs v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "76ba922191e495a72eeccd7c7cc92c4b97f4bf875cf7d9594f4567af885928cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76ba922191e495a72eeccd7c7cc92c4b97f4bf875cf7d9594f4567af885928cc", kill_on_drop: false }`
[INFO] [stdout] 76ba922191e495a72eeccd7c7cc92c4b97f4bf875cf7d9594f4567af885928cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d4e1b2b58583a3ed9fb9050af47fae49b38c0df3b295606dfd24b3e517c8fbc
[INFO] running `Command { std: "docker" "start" "-a" "6d4e1b2b58583a3ed9fb9050af47fae49b38c0df3b295606dfd24b3e517c8fbc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling downcast-rs v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `Command { std: "docker" "inspect" "6d4e1b2b58583a3ed9fb9050af47fae49b38c0df3b295606dfd24b3e517c8fbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d4e1b2b58583a3ed9fb9050af47fae49b38c0df3b295606dfd24b3e517c8fbc", kill_on_drop: false }`
[INFO] [stdout] 6d4e1b2b58583a3ed9fb9050af47fae49b38c0df3b295606dfd24b3e517c8fbc