[INFO] fetching crate infer 0.5.0...
[INFO] checking infer-0.5.0 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate infer 0.5.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate infer 0.5.0 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate infer 0.5.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate infer 0.5.0
[INFO] tweaked toml for crates.io crate infer 0.5.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate infer 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66677282a6fa1e72d8322682b61179b40e560a1ebded2584d0682cf9becb7194
[INFO] running `Command { std: "docker" "start" "-a" "66677282a6fa1e72d8322682b61179b40e560a1ebded2584d0682cf9becb7194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66677282a6fa1e72d8322682b61179b40e560a1ebded2584d0682cf9becb7194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66677282a6fa1e72d8322682b61179b40e560a1ebded2584d0682cf9becb7194", kill_on_drop: false }`
[INFO] [stdout] 66677282a6fa1e72d8322682b61179b40e560a1ebded2584d0682cf9becb7194
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f2928dfca2169b8b639c39854e9690493eac3b60e69ef5e188036272b776a0c
[INFO] running `Command { std: "docker" "start" "-a" "5f2928dfca2169b8b639c39854e9690493eac3b60e69ef5e188036272b776a0c", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking cfb v0.4.0
[INFO] [stderr]     Checking infer v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.24s
[INFO] running `Command { std: "docker" "inspect" "5f2928dfca2169b8b639c39854e9690493eac3b60e69ef5e188036272b776a0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f2928dfca2169b8b639c39854e9690493eac3b60e69ef5e188036272b776a0c", kill_on_drop: false }`
[INFO] [stdout] 5f2928dfca2169b8b639c39854e9690493eac3b60e69ef5e188036272b776a0c