[INFO] cloning repository https://github.com/F0903/rust_game_of_life
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/F0903/rust_game_of_life" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FF0903%2Frust_game_of_life", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FF0903%2Frust_game_of_life'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 68dd8cfbc92038fdc08eaea3b14be5cf57f3f789
[INFO] checking F0903/rust_game_of_life against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FF0903%2Frust_game_of_life" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/F0903/rust_game_of_life on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/F0903/rust_game_of_life
[INFO] finished tweaking git repo https://github.com/F0903/rust_game_of_life
[INFO] tweaked toml for git repo https://github.com/F0903/rust_game_of_life written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/F0903/rust_game_of_life already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb180d2af82b20d6ab76b6fa4508a00f79014fed8d4d750a388bfb7d3f577a61
[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" "fb180d2af82b20d6ab76b6fa4508a00f79014fed8d4d750a388bfb7d3f577a61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb180d2af82b20d6ab76b6fa4508a00f79014fed8d4d750a388bfb7d3f577a61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb180d2af82b20d6ab76b6fa4508a00f79014fed8d4d750a388bfb7d3f577a61", kill_on_drop: false }`
[INFO] [stdout] fb180d2af82b20d6ab76b6fa4508a00f79014fed8d4d750a388bfb7d3f577a61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 3a48a14c88fd4e8bb1fff66909774e58c443f700958a13c7f071ca378c348ca5
[INFO] running `Command { std: "docker" "start" "-a" "3a48a14c88fd4e8bb1fff66909774e58c443f700958a13c7f071ca378c348ca5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.90
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking mio v0.7.10
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking crossterm v0.19.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking rust_game_of_life v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `clear_cell`
[INFO] [stdout]    --> src/main.rs:122:4
[INFO] [stdout]     |
[INFO] [stdout] 122 | fn clear_cell(term: &mut Stdout, cell: &Cell) -> Result<()> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `clear_cell`
[INFO] [stdout]    --> src/main.rs:122:4
[INFO] [stdout]     |
[INFO] [stdout] 122 | fn clear_cell(term: &mut Stdout, cell: &Cell) -> Result<()> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.60s
[INFO] running `Command { std: "docker" "inspect" "3a48a14c88fd4e8bb1fff66909774e58c443f700958a13c7f071ca378c348ca5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a48a14c88fd4e8bb1fff66909774e58c443f700958a13c7f071ca378c348ca5", kill_on_drop: false }`
[INFO] [stdout] 3a48a14c88fd4e8bb1fff66909774e58c443f700958a13c7f071ca378c348ca5