[INFO] cloning repository https://github.com/magurotuna/rust-procon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/magurotuna/rust-procon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmagurotuna%2Frust-procon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmagurotuna%2Frust-procon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 29aedf1c00001166f77e7f8bc12d11fd27d14bfe
[INFO] checking magurotuna/rust-procon against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmagurotuna%2Frust-procon" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/magurotuna/rust-procon on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/magurotuna/rust-procon
[INFO] finished tweaking git repo https://github.com/magurotuna/rust-procon
[INFO] tweaked toml for git repo https://github.com/magurotuna/rust-procon written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/magurotuna/rust-procon already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "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] 7a77af4b1eddc4fa2b6380407b49b24565af50854b0e752bdc8d70f112fb6cc1
[INFO] running `Command { std: "docker" "start" "-a" "7a77af4b1eddc4fa2b6380407b49b24565af50854b0e752bdc8d70f112fb6cc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a77af4b1eddc4fa2b6380407b49b24565af50854b0e752bdc8d70f112fb6cc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a77af4b1eddc4fa2b6380407b49b24565af50854b0e752bdc8d70f112fb6cc1", kill_on_drop: false }`
[INFO] [stdout] 7a77af4b1eddc4fa2b6380407b49b24565af50854b0e752bdc8d70f112fb6cc1
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4418028e1107e502234e37efa001af74effca0b6026ba57f64f01d086532944d
[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" "4418028e1107e502234e37efa001af74effca0b6026ba57f64f01d086532944d", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-procon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "4418028e1107e502234e37efa001af74effca0b6026ba57f64f01d086532944d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4418028e1107e502234e37efa001af74effca0b6026ba57f64f01d086532944d", kill_on_drop: false }`
[INFO] [stdout] 4418028e1107e502234e37efa001af74effca0b6026ba57f64f01d086532944d