[INFO] fetching crate extc 0.0.0-RESERVE...
[INFO] checking extc-0.0.0-RESERVE against try#e0f03aec47b100bc29555561bd62a99d1bc6aca5 for pr-86231
[INFO] extracting crate extc 0.0.0-RESERVE into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate extc 0.0.0-RESERVE on toolchain e0f03aec47b100bc29555561bd62a99d1bc6aca5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate extc 0.0.0-RESERVE
[INFO] finished tweaking crates.io crate extc 0.0.0-RESERVE
[INFO] tweaked toml for crates.io crate extc 0.0.0-RESERVE written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate extc 0.0.0-RESERVE already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac860ef1b601b9e603a9739d0ad7dfc134fe024d9d2e87f23f3fcc76bb3f637f
[INFO] running `Command { std: "docker" "start" "-a" "ac860ef1b601b9e603a9739d0ad7dfc134fe024d9d2e87f23f3fcc76bb3f637f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac860ef1b601b9e603a9739d0ad7dfc134fe024d9d2e87f23f3fcc76bb3f637f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac860ef1b601b9e603a9739d0ad7dfc134fe024d9d2e87f23f3fcc76bb3f637f", kill_on_drop: false }`
[INFO] [stdout] ac860ef1b601b9e603a9739d0ad7dfc134fe024d9d2e87f23f3fcc76bb3f637f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f843f8e0278b5c09cff1d528efd8e165e1b92f614af91583f5a5916510769dd
[INFO] running `Command { std: "docker" "start" "-a" "4f843f8e0278b5c09cff1d528efd8e165e1b92f614af91583f5a5916510769dd", kill_on_drop: false }`
[INFO] [stderr]     Checking extc v0.0.0-RESERVE (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "4f843f8e0278b5c09cff1d528efd8e165e1b92f614af91583f5a5916510769dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f843f8e0278b5c09cff1d528efd8e165e1b92f614af91583f5a5916510769dd", kill_on_drop: false }`
[INFO] [stdout] 4f843f8e0278b5c09cff1d528efd8e165e1b92f614af91583f5a5916510769dd