[INFO] cloning repository https://github.com/35359595/n-Queens-Completion-Puzzle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/35359595/n-Queens-Completion-Puzzle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F35359595%2Fn-Queens-Completion-Puzzle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F35359595%2Fn-Queens-Completion-Puzzle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f0a3948ea940ad63455e6bd8be7119e8e0d33c12
[INFO] checking 35359595/n-Queens-Completion-Puzzle against try#ff044a3d65d25a17c3e14c1530004e1540179ba7 for pr-78338
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F35359595%2Fn-Queens-Completion-Puzzle" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/35359595/n-Queens-Completion-Puzzle on toolchain ff044a3d65d25a17c3e14c1530004e1540179ba7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/35359595/n-Queens-Completion-Puzzle
[INFO] finished tweaking git repo https://github.com/35359595/n-Queens-Completion-Puzzle
[INFO] tweaked toml for git repo https://github.com/35359595/n-Queens-Completion-Puzzle written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/35359595/n-Queens-Completion-Puzzle already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b7b7bcd6dbdf9f50ec27d687e090a79b9d1709a685d35a59173b60527b0775d
[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" "2b7b7bcd6dbdf9f50ec27d687e090a79b9d1709a685d35a59173b60527b0775d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b7b7bcd6dbdf9f50ec27d687e090a79b9d1709a685d35a59173b60527b0775d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b7b7bcd6dbdf9f50ec27d687e090a79b9d1709a685d35a59173b60527b0775d", kill_on_drop: false }`
[INFO] [stdout] 2b7b7bcd6dbdf9f50ec27d687e090a79b9d1709a685d35a59173b60527b0775d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41c69bef0807aac0106ea3932546ea53944035f98a5b324f337f022d4738ddc9
[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" "41c69bef0807aac0106ea3932546ea53944035f98a5b324f337f022d4738ddc9", kill_on_drop: false }`
[INFO] [stderr]     Checking queen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "41c69bef0807aac0106ea3932546ea53944035f98a5b324f337f022d4738ddc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41c69bef0807aac0106ea3932546ea53944035f98a5b324f337f022d4738ddc9", kill_on_drop: false }`
[INFO] [stdout] 41c69bef0807aac0106ea3932546ea53944035f98a5b324f337f022d4738ddc9