[INFO] fetching crate signature 3.0.0-rc.1...
[INFO] building signature-3.0.0-rc.1 against try#8b8eff55bd72abbb57167bc42222a7f91d41cb0d for pr-142134-abi-ast-error
[INFO] extracting crate signature 3.0.0-rc.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate signature 3.0.0-rc.1 on toolchain 8b8eff55bd72abbb57167bc42222a7f91d41cb0d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate signature 3.0.0-rc.1
[INFO] finished tweaking crates.io crate signature 3.0.0-rc.1
[INFO] tweaked toml for crates.io crate signature 3.0.0-rc.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate signature 3.0.0-rc.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04a918bf290f3a8e89f8dfbd57bf3c97242fbd8da23d6f4407fffa14a4826277
[INFO] running `Command { std: "docker" "start" "-a" "04a918bf290f3a8e89f8dfbd57bf3c97242fbd8da23d6f4407fffa14a4826277", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04a918bf290f3a8e89f8dfbd57bf3c97242fbd8da23d6f4407fffa14a4826277", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04a918bf290f3a8e89f8dfbd57bf3c97242fbd8da23d6f4407fffa14a4826277", kill_on_drop: false }`
[INFO] [stdout] 04a918bf290f3a8e89f8dfbd57bf3c97242fbd8da23d6f4407fffa14a4826277
[INFO] building signature-3.0.0-rc.1 against try#8b8eff55bd72abbb57167bc42222a7f91d41cb0d for pr-142134-abi-ast-error
[INFO] extracting crate signature 3.0.0-rc.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate signature 3.0.0-rc.1 on toolchain 8b8eff55bd72abbb57167bc42222a7f91d41cb0d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate signature 3.0.0-rc.1
[INFO] finished tweaking crates.io crate signature 3.0.0-rc.1
[INFO] tweaked toml for crates.io crate signature 3.0.0-rc.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate signature 3.0.0-rc.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52a1642216f2394d8593dc785c4045ab0e519250da4dda3d0f9104d03e2710aa
[INFO] running `Command { std: "docker" "start" "-a" "52a1642216f2394d8593dc785c4045ab0e519250da4dda3d0f9104d03e2710aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52a1642216f2394d8593dc785c4045ab0e519250da4dda3d0f9104d03e2710aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52a1642216f2394d8593dc785c4045ab0e519250da4dda3d0f9104d03e2710aa", kill_on_drop: false }`
[INFO] [stdout] 52a1642216f2394d8593dc785c4045ab0e519250da4dda3d0f9104d03e2710aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 746447b9826e54a3e6fb8c8276cd154efb0ec077b97922d7d2e7fb24aed36040
[INFO] running `Command { std: "docker" "start" "-a" "746447b9826e54a3e6fb8c8276cd154efb0ec077b97922d7d2e7fb24aed36040", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: write /var/lib/docker/containers/746447b9826e54a3e6fb8c8276cd154efb0ec077b97922d7d2e7fb24aed36040/hosts: no space left on device
[INFO] running `Command { std: "docker" "inspect" "746447b9826e54a3e6fb8c8276cd154efb0ec077b97922d7d2e7fb24aed36040", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "746447b9826e54a3e6fb8c8276cd154efb0ec077b97922d7d2e7fb24aed36040", kill_on_drop: false }`
[INFO] [stdout] 746447b9826e54a3e6fb8c8276cd154efb0ec077b97922d7d2e7fb24aed36040