[INFO] cloning repository https://github.com/ahuff44/rust-tictactoe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ahuff44/rust-tictactoe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahuff44%2Frust-tictactoe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahuff44%2Frust-tictactoe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 467cdcbc1deadaf0f7d5da0aba96d60a2ae44eb2
[INFO] checking ahuff44/rust-tictactoe against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahuff44%2Frust-tictactoe" "/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/ahuff44/rust-tictactoe on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ahuff44/rust-tictactoe
[INFO] finished tweaking git repo https://github.com/ahuff44/rust-tictactoe
[INFO] tweaked toml for git repo https://github.com/ahuff44/rust-tictactoe written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ahuff44/rust-tictactoe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a532f3984a2a53525aac8eb6182d5fe1fd4bdb5f9a5e1ef61c6731eb12766e63
[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" "a532f3984a2a53525aac8eb6182d5fe1fd4bdb5f9a5e1ef61c6731eb12766e63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a532f3984a2a53525aac8eb6182d5fe1fd4bdb5f9a5e1ef61c6731eb12766e63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a532f3984a2a53525aac8eb6182d5fe1fd4bdb5f9a5e1ef61c6731eb12766e63", kill_on_drop: false }`
[INFO] [stdout] a532f3984a2a53525aac8eb6182d5fe1fd4bdb5f9a5e1ef61c6731eb12766e63
[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" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08f11d5f12843c2b5d2796a5059b39e8a0e50c8d7330f9b19f0915df8513d1aa
[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" "08f11d5f12843c2b5d2796a5059b39e8a0e50c8d7330f9b19f0915df8513d1aa", kill_on_drop: false }`
[INFO] [stderr]     Checking tictactoe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find value `O` in this scope
[INFO] [stdout]    --> src/lib.rs:180:21
[INFO] [stdout]     |
[INFO] [stdout] 180 |     assert_eq!(Some(O), board.winner());
[INFO] [stdout]     |                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: a tuple variant with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 180 |     assert_eq!(Some(Ok), board.winner());
[INFO] [stdout]     |                     ^^
[INFO] [stdout] help: consider importing this unit variant
[INFO] [stdout]     |
[INFO] [stdout] 151 |   use Mark::O;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tictactoe`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "08f11d5f12843c2b5d2796a5059b39e8a0e50c8d7330f9b19f0915df8513d1aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08f11d5f12843c2b5d2796a5059b39e8a0e50c8d7330f9b19f0915df8513d1aa", kill_on_drop: false }`
[INFO] [stdout] 08f11d5f12843c2b5d2796a5059b39e8a0e50c8d7330f9b19f0915df8513d1aa