[INFO] crate arf 0.1.0 is already in cache
[INFO] checking arf-0.1.0 against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166
[INFO] extracting crate arf 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate arf 0.1.0 on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arf 0.1.0
[INFO] finished tweaking crates.io crate arf 0.1.0
[INFO] tweaked toml for crates.io crate arf 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate arf 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5174aec4ed2c231414ece23cdc40af18004175508cbd0150c7d32a557ef43473
[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" "5174aec4ed2c231414ece23cdc40af18004175508cbd0150c7d32a557ef43473", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5174aec4ed2c231414ece23cdc40af18004175508cbd0150c7d32a557ef43473", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5174aec4ed2c231414ece23cdc40af18004175508cbd0150c7d32a557ef43473", kill_on_drop: false }`
[INFO] [stdout] 5174aec4ed2c231414ece23cdc40af18004175508cbd0150c7d32a557ef43473
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f5f17c8cbc7627793d85e2a7646d1d8177d4a1bcd80e4bf6b3de314107e9bcc
[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" "2f5f17c8cbc7627793d85e2a7646d1d8177d4a1bcd80e4bf6b3de314107e9bcc", kill_on_drop: false }`
[INFO] [stderr]     Checking arf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "2f5f17c8cbc7627793d85e2a7646d1d8177d4a1bcd80e4bf6b3de314107e9bcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f5f17c8cbc7627793d85e2a7646d1d8177d4a1bcd80e4bf6b3de314107e9bcc", kill_on_drop: false }`
[INFO] [stdout] 2f5f17c8cbc7627793d85e2a7646d1d8177d4a1bcd80e4bf6b3de314107e9bcc