[INFO] fetching crate arc-writer 0.2.0-alpha.12...
[INFO] checking arc-writer-0.2.0-alpha.12 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate arc-writer 0.2.0-alpha.12 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate arc-writer 0.2.0-alpha.12 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arc-writer 0.2.0-alpha.12
[INFO] finished tweaking crates.io crate arc-writer 0.2.0-alpha.12
[INFO] tweaked toml for crates.io crate arc-writer 0.2.0-alpha.12 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c3558d86b7ee8272588d46dae5ed4a892bfb6d6881564f34bc7520ef35fdbdb
[INFO] running `Command { std: "docker" "start" "-a" "3c3558d86b7ee8272588d46dae5ed4a892bfb6d6881564f34bc7520ef35fdbdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c3558d86b7ee8272588d46dae5ed4a892bfb6d6881564f34bc7520ef35fdbdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c3558d86b7ee8272588d46dae5ed4a892bfb6d6881564f34bc7520ef35fdbdb", kill_on_drop: false }`
[INFO] [stdout] 3c3558d86b7ee8272588d46dae5ed4a892bfb6d6881564f34bc7520ef35fdbdb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a5f554f89a4a586a4ec1f3d1d2e2e16391f56e32b8cb9ac66b6b8aa48a2745c
[INFO] running `Command { std: "docker" "start" "-a" "4a5f554f89a4a586a4ec1f3d1d2e2e16391f56e32b8cb9ac66b6b8aa48a2745c", kill_on_drop: false }`
[INFO] [stderr]     Checking arc-writer v0.2.0-alpha.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "4a5f554f89a4a586a4ec1f3d1d2e2e16391f56e32b8cb9ac66b6b8aa48a2745c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a5f554f89a4a586a4ec1f3d1d2e2e16391f56e32b8cb9ac66b6b8aa48a2745c", kill_on_drop: false }`
[INFO] [stdout] 4a5f554f89a4a586a4ec1f3d1d2e2e16391f56e32b8cb9ac66b6b8aa48a2745c