[INFO] updating cached repository https://github.com/JonathanWoollett-Light/cp39_conways_game_of_life
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 03c5b5277eaab53cdc5cf74ee83b6b5ac1277a34
[INFO] checking JonathanWoollett-Light/cp39_conways_game_of_life against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJonathanWoollett-Light%2Fcp39_conways_game_of_life" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JonathanWoollett-Light/cp39_conways_game_of_life on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/JonathanWoollett-Light/cp39_conways_game_of_life
[INFO] finished tweaking git repo https://github.com/JonathanWoollett-Light/cp39_conways_game_of_life
[INFO] tweaked toml for git repo https://github.com/JonathanWoollett-Light/cp39_conways_game_of_life written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/JonathanWoollett-Light/cp39_conways_game_of_life already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] f95d441b5ee4ab20791494dec1179679b8e39d401bae2de3922866a06651650b
[INFO] running `"docker" "start" "-a" "f95d441b5ee4ab20791494dec1179679b8e39d401bae2de3922866a06651650b"`
[INFO] [stderr]     Checking cp39_conways_game_of_life v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0606]: casting `f32` as `i8` is invalid
[INFO] [stderr]   --> src/main.rs:44:20
[INFO] [stderr]    |
[INFO] [stderr] 44 |     let y_centre = (board.len() as f32 / 4f32).ceil() as i8;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f32` as `i8` is invalid
[INFO] [stderr]   --> src/main.rs:45:20
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let x_centre = (board[0].len() as f32 / 4f32).ceil() as i8;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f32` as `i8` is invalid
[INFO] [stderr]    --> src/main.rs:145:59
[INFO] [stderr]     |
[INFO] [stderr] 145 |         print!("{} | ",format!("{:0>2}",y as i8 + min_y - (board.len() as f32 / 4f32).ceil() as i8));
[INFO] [stderr]     |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f32` as `i8` is invalid
[INFO] [stderr]    --> src/main.rs:154:58
[INFO] [stderr]     |
[INFO] [stderr] 154 |         print!("{} ",format!("{:0>2}", x as i8 + min_x - (board[0].len() as f32 / 4f32).ceil() as i8))
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `cp39_conways_game_of_life`.
[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[E0606]: casting `f32` as `i8` is invalid
[INFO] [stderr]   --> src/main.rs:44:20
[INFO] [stderr]    |
[INFO] [stderr] 44 |     let y_centre = (board.len() as f32 / 4f32).ceil() as i8;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f32` as `i8` is invalid
[INFO] [stderr]   --> src/main.rs:45:20
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let x_centre = (board[0].len() as f32 / 4f32).ceil() as i8;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f32` as `i8` is invalid
[INFO] [stderr]    --> src/main.rs:145:59
[INFO] [stderr]     |
[INFO] [stderr] 145 |         print!("{} | ",format!("{:0>2}",y as i8 + min_y - (board.len() as f32 / 4f32).ceil() as i8));
[INFO] [stderr]     |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f32` as `i8` is invalid
[INFO] [stderr]    --> src/main.rs:154:58
[INFO] [stderr]     |
[INFO] [stderr] 154 |         print!("{} ",format!("{:0>2}", x as i8 + min_x - (board[0].len() as f32 / 4f32).ceil() as i8))
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `cp39_conways_game_of_life`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f95d441b5ee4ab20791494dec1179679b8e39d401bae2de3922866a06651650b"`
[INFO] running `"docker" "rm" "-f" "f95d441b5ee4ab20791494dec1179679b8e39d401bae2de3922866a06651650b"`
[INFO] [stdout] f95d441b5ee4ab20791494dec1179679b8e39d401bae2de3922866a06651650b