[INFO] fetching crate arc-writer 0.2.0-alpha.12...
[INFO] checking arc-writer-0.2.0-alpha.12 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate arc-writer 0.2.0-alpha.12 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate arc-writer 0.2.0-alpha.12 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "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-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51ab0dd0bb7403c24ec5c83630591dab29ad9d2dff827191a0819a24e9e56333
[INFO] running `Command { std: "docker" "start" "-a" "51ab0dd0bb7403c24ec5c83630591dab29ad9d2dff827191a0819a24e9e56333", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51ab0dd0bb7403c24ec5c83630591dab29ad9d2dff827191a0819a24e9e56333", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51ab0dd0bb7403c24ec5c83630591dab29ad9d2dff827191a0819a24e9e56333", kill_on_drop: false }`
[INFO] [stdout] 51ab0dd0bb7403c24ec5c83630591dab29ad9d2dff827191a0819a24e9e56333
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a3d6028e45a59c08ad2006ccc96344a349603743056939c3e2660f2be8e75f3
[INFO] running `Command { std: "docker" "start" "-a" "6a3d6028e45a59c08ad2006ccc96344a349603743056939c3e2660f2be8e75f3", 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 0.07s
[INFO] running `Command { std: "docker" "inspect" "6a3d6028e45a59c08ad2006ccc96344a349603743056939c3e2660f2be8e75f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a3d6028e45a59c08ad2006ccc96344a349603743056939c3e2660f2be8e75f3", kill_on_drop: false }`
[INFO] [stdout] 6a3d6028e45a59c08ad2006ccc96344a349603743056939c3e2660f2be8e75f3