[INFO] fetching crate vermilionrc 0.0.0-unreleased...
[INFO] checking vermilionrc-0.0.0-unreleased against try#353a0a223066e9f46a1d935f2271a26c3c5002bb for pr-75180
[INFO] extracting crate vermilionrc 0.0.0-unreleased into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate vermilionrc 0.0.0-unreleased on toolchain 353a0a223066e9f46a1d935f2271a26c3c5002bb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vermilionrc 0.0.0-unreleased
[INFO] finished tweaking crates.io crate vermilionrc 0.0.0-unreleased
[INFO] tweaked toml for crates.io crate vermilionrc 0.0.0-unreleased written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate vermilionrc 0.0.0-unreleased already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68378f67879896aedb125cb333390fdf7bbe2343a5436dc5ebc94433863e9fe7
[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" "68378f67879896aedb125cb333390fdf7bbe2343a5436dc5ebc94433863e9fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68378f67879896aedb125cb333390fdf7bbe2343a5436dc5ebc94433863e9fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68378f67879896aedb125cb333390fdf7bbe2343a5436dc5ebc94433863e9fe7", kill_on_drop: false }`
[INFO] [stdout] 68378f67879896aedb125cb333390fdf7bbe2343a5436dc5ebc94433863e9fe7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 165d7e5609e3f238647964c42165be8d896f965fe16014a0516c215d8edfcadb
[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" "165d7e5609e3f238647964c42165be8d896f965fe16014a0516c215d8edfcadb", kill_on_drop: false }`
[INFO] [stderr]     Checking vermilionrc v0.0.0-unreleased (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "165d7e5609e3f238647964c42165be8d896f965fe16014a0516c215d8edfcadb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "165d7e5609e3f238647964c42165be8d896f965fe16014a0516c215d8edfcadb", kill_on_drop: false }`
[INFO] [stdout] 165d7e5609e3f238647964c42165be8d896f965fe16014a0516c215d8edfcadb