[INFO] cloning repository christiansakai/tictactoe_multiplayer_rust
[INFO] running `"git" "clone" "--bare" "git://github.com/christiansakai/tictactoe_multiplayer_rust.git" "work/cache/sources/gh/christiansakai/tictactoe_multiplayer_rust"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/christiansakai/tictactoe_multiplayer_rust'...
[INFO] running `"git" "clone" "work/cache/sources/gh/christiansakai/tictactoe_multiplayer_rust" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/christiansakai/tictactoe_multiplayer_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/christiansakai/tictactoe_multiplayer_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/christiansakai/tictactoe_multiplayer_rust" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/christiansakai/tictactoe_multiplayer_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/christiansakai/tictactoe_multiplayer_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5c60febfdac2f10feff9f09c98c2c7e49d023da7
[INFO] sha for GitHub repo christiansakai/tictactoe_multiplayer_rust: 5c60febfdac2f10feff9f09c98c2c7e49d023da7
[INFO] validating manifest of christiansakai/tictactoe_multiplayer_rust on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of christiansakai/tictactoe_multiplayer_rust on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing christiansakai/tictactoe_multiplayer_rust
[INFO] finished frobbing christiansakai/tictactoe_multiplayer_rust
[INFO] frobbed toml for christiansakai/tictactoe_multiplayer_rust written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/christiansakai/tictactoe_multiplayer_rust/Cargo.toml
[INFO] started frobbing christiansakai/tictactoe_multiplayer_rust
[INFO] finished frobbing christiansakai/tictactoe_multiplayer_rust
[INFO] frobbed toml for christiansakai/tictactoe_multiplayer_rust written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/christiansakai/tictactoe_multiplayer_rust/Cargo.toml
[INFO] crate christiansakai/tictactoe_multiplayer_rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking christiansakai/tictactoe_multiplayer_rust against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-3/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/christiansakai/tictactoe_multiplayer_rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fe24f3cd8ee772de019184e282254049866b9c2cbd90c56cde8138ca7d29e688
[INFO] running `"docker" "start" "-a" "fe24f3cd8ee772de019184e282254049866b9c2cbd90c56cde8138ca7d29e688"`
[INFO] [stderr]     Checking tictactoe v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/game.rs:31:17
[INFO] [stderr]    |
[INFO] [stderr] 31 |             let mut row: Vec<Player> = vec![
[INFO] [stderr]    |                 ----^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/game.rs:31:17
[INFO] [stderr]    |
[INFO] [stderr] 31 |             let mut row: Vec<Player> = vec![
[INFO] [stderr]    |                 ----^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `client`, `server`
[INFO] [stderr]  --> src/main.rs:7:26
[INFO] [stderr]   |
[INFO] [stderr] 7 | use tictactoe::network::{server, client};
[INFO] [stderr]   |                          ^^^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `client`, `server`
[INFO] [stderr]  --> src/main.rs:7:26
[INFO] [stderr]   |
[INFO] [stderr] 7 | use tictactoe::network::{server, client};
[INFO] [stderr]   |                          ^^^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `"docker" "inspect" "fe24f3cd8ee772de019184e282254049866b9c2cbd90c56cde8138ca7d29e688"`
[INFO] running `"docker" "rm" "-f" "fe24f3cd8ee772de019184e282254049866b9c2cbd90c56cde8138ca7d29e688"`
[INFO] [stdout] fe24f3cd8ee772de019184e282254049866b9c2cbd90c56cde8138ca7d29e688