[INFO] fetching crate ufo 0.1.0...
[INFO] checking ufo-0.1.0 against try#169954edd744527414c631e9af1bbdc537b0cdf2 for pr-75192
[INFO] extracting crate ufo 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate ufo 0.1.0 on toolchain 169954edd744527414c631e9af1bbdc537b0cdf2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ufo 0.1.0
[INFO] finished tweaking crates.io crate ufo 0.1.0
[INFO] tweaked toml for crates.io crate ufo 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42a817f6c9f20a406ebedff59aeff104e531ac4cf661bf034ffbf12234f77e98
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "42a817f6c9f20a406ebedff59aeff104e531ac4cf661bf034ffbf12234f77e98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42a817f6c9f20a406ebedff59aeff104e531ac4cf661bf034ffbf12234f77e98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42a817f6c9f20a406ebedff59aeff104e531ac4cf661bf034ffbf12234f77e98", kill_on_drop: false }`
[INFO] [stdout] 42a817f6c9f20a406ebedff59aeff104e531ac4cf661bf034ffbf12234f77e98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1758093050a175100c79db6a51a42a8cea3d869b6d44c7f52ce163e4945b09dc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1758093050a175100c79db6a51a42a8cea3d869b6d44c7f52ce163e4945b09dc", kill_on_drop: false }`
[INFO] [stderr]     Checking ufo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "1758093050a175100c79db6a51a42a8cea3d869b6d44c7f52ce163e4945b09dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1758093050a175100c79db6a51a42a8cea3d869b6d44c7f52ce163e4945b09dc", kill_on_drop: false }`
[INFO] [stdout] 1758093050a175100c79db6a51a42a8cea3d869b6d44c7f52ce163e4945b09dc