[INFO] fetching crate proposer-metrics 0.0.0...
[INFO] checking proposer-metrics-0.0.0 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate proposer-metrics 0.0.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate proposer-metrics 0.0.0 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate proposer-metrics 0.0.0
[INFO] finished tweaking crates.io crate proposer-metrics 0.0.0
[INFO] tweaked toml for crates.io crate proposer-metrics 0.0.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate proposer-metrics 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 240a0eb916647ae1580690dd514ee2d7116ec7491b49359ff95e64eb4f0e288a
[INFO] running `Command { std: "docker" "start" "-a" "240a0eb916647ae1580690dd514ee2d7116ec7491b49359ff95e64eb4f0e288a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "240a0eb916647ae1580690dd514ee2d7116ec7491b49359ff95e64eb4f0e288a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "240a0eb916647ae1580690dd514ee2d7116ec7491b49359ff95e64eb4f0e288a", kill_on_drop: false }`
[INFO] [stdout] 240a0eb916647ae1580690dd514ee2d7116ec7491b49359ff95e64eb4f0e288a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d3d1ce84199e0332f27357fbc97efa7f4df05c118192638aadfc7d3931a8344
[INFO] running `Command { std: "docker" "start" "-a" "0d3d1ce84199e0332f27357fbc97efa7f4df05c118192638aadfc7d3931a8344", kill_on_drop: false }`
[INFO] [stderr]     Checking proposer-metrics v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "0d3d1ce84199e0332f27357fbc97efa7f4df05c118192638aadfc7d3931a8344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d3d1ce84199e0332f27357fbc97efa7f4df05c118192638aadfc7d3931a8344", kill_on_drop: false }`
[INFO] [stdout] 0d3d1ce84199e0332f27357fbc97efa7f4df05c118192638aadfc7d3931a8344