[INFO] cloning repository https://github.com/the-eater/black-widow
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/the-eater/black-widow" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe-eater%2Fblack-widow"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe-eater%2Fblack-widow'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5f78e350ca784702b67053fcff96b691c1649f6f
[INFO] checking the-eater/black-widow against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe-eater%2Fblack-widow" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/the-eater/black-widow on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/the-eater/black-widow
[INFO] finished tweaking git repo https://github.com/the-eater/black-widow
[INFO] tweaked toml for git repo https://github.com/the-eater/black-widow written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/the-eater/black-widow already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "/opt/rustwide/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a568602782b887fef0beb119cdd0fe85a76c42711b565c862275da59303705f4
[INFO] running `"docker" "start" "-a" "a568602782b887fef0beb119cdd0fe85a76c42711b565c862275da59303705f4"`
[INFO] [stderr]    Compiling ring v0.13.2
[INFO] [stderr]    Compiling tun-tap v0.1.1 (https://github.com/vorner/tuntap#dd9255f1)
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking parking_lot v0.6.3
[INFO] [stderr]    Compiling serde_derive v1.0.70
[INFO] [stderr]     Checking crossbeam-channel v0.2.4
[INFO] [stderr]     Checking black-widow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.65s
[INFO] running `"docker" "inspect" "a568602782b887fef0beb119cdd0fe85a76c42711b565c862275da59303705f4"`
[INFO] running `"docker" "rm" "-f" "a568602782b887fef0beb119cdd0fe85a76c42711b565c862275da59303705f4"`
[INFO] [stdout] a568602782b887fef0beb119cdd0fe85a76c42711b565c862275da59303705f4