[INFO] cloning repository https://github.com/BarePotato/sweeper
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BarePotato/sweeper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBarePotato%2Fsweeper"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBarePotato%2Fsweeper'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e053a331b01957a9061057b5eb9b07aed2747ec2
[INFO] checking BarePotato/sweeper against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBarePotato%2Fsweeper" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BarePotato/sweeper on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/BarePotato/sweeper
[INFO] finished tweaking git repo https://github.com/BarePotato/sweeper
[INFO] tweaked toml for git repo https://github.com/BarePotato/sweeper written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/BarePotato/sweeper already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8ca6dca79bd02f4fd0d0bea38c8ce9b4c0898306cceaaabaf588d19389d3653d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "8ca6dca79bd02f4fd0d0bea38c8ce9b4c0898306cceaaabaf588d19389d3653d"`
[INFO] [stderr]    Compiling sfml-build v0.2.0
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling csfml-system-sys v0.4.0
[INFO] [stderr]    Compiling csfml-window-sys v0.4.0
[INFO] [stderr]    Compiling csfml-graphics-sys v0.4.0
[INFO] [stderr]    Compiling csfml-audio-sys v0.4.0
[INFO] [stderr]     Checking rand v0.6.1
[INFO] [stderr]     Checking sfml v0.14.0
[INFO] [stderr]     Checking sweeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `button`
[INFO] [stderr]   --> src/main.rs:64:45
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 Event::MouseButtonPressed { button, x, y } => {
[INFO] [stderr]    |                                             ^^^^^^ help: try ignoring the field: `button: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `button`
[INFO] [stderr]   --> src/main.rs:64:45
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 Event::MouseButtonPressed { button, x, y } => {
[INFO] [stderr]    |                                             ^^^^^^ help: try ignoring the field: `button: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.71s
[INFO] running `"docker" "inspect" "8ca6dca79bd02f4fd0d0bea38c8ce9b4c0898306cceaaabaf588d19389d3653d"`
[INFO] running `"docker" "rm" "-f" "8ca6dca79bd02f4fd0d0bea38c8ce9b4c0898306cceaaabaf588d19389d3653d"`
[INFO] [stdout] 8ca6dca79bd02f4fd0d0bea38c8ce9b4c0898306cceaaabaf588d19389d3653d