[INFO] crate polaris 0.0.0 is already in cache
[INFO] checking polaris-0.0.0 against master#8ac1525e091d3db28e67adcbbd6db1e1deaa37fb for pr-73323
[INFO] extracting crate polaris 0.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate polaris 0.0.0 on toolchain 8ac1525e091d3db28e67adcbbd6db1e1deaa37fb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polaris 0.0.0
[INFO] finished tweaking crates.io crate polaris 0.0.0
[INFO] tweaked toml for crates.io crate polaris 0.0.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate polaris 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6a6d8af51ea88f5aff10a15456dfc5e4c9a0e4f6b94861e121ee3702163d1e45
[INFO] running `Command { std: "docker" "start" "-a" "6a6d8af51ea88f5aff10a15456dfc5e4c9a0e4f6b94861e121ee3702163d1e45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a6d8af51ea88f5aff10a15456dfc5e4c9a0e4f6b94861e121ee3702163d1e45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a6d8af51ea88f5aff10a15456dfc5e4c9a0e4f6b94861e121ee3702163d1e45", kill_on_drop: false }`
[INFO] [stdout] 6a6d8af51ea88f5aff10a15456dfc5e4c9a0e4f6b94861e121ee3702163d1e45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25b4ce641c9ff31975994e9aea47bdd86e328d8aab51a69701ede92da7b059fa
[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" "25b4ce641c9ff31975994e9aea47bdd86e328d8aab51a69701ede92da7b059fa", kill_on_drop: false }`
[INFO] [stderr]     Checking polaris v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "25b4ce641c9ff31975994e9aea47bdd86e328d8aab51a69701ede92da7b059fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25b4ce641c9ff31975994e9aea47bdd86e328d8aab51a69701ede92da7b059fa", kill_on_drop: false }`
[INFO] [stdout] 25b4ce641c9ff31975994e9aea47bdd86e328d8aab51a69701ede92da7b059fa