[INFO] updating cached repository https://github.com/chip8-rust/chip8-ui
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/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] e46ed6326eb4956faa9c43f00bb1e68eb432edd2
[INFO] checking chip8-rust/chip8-ui against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchip8-rust%2Fchip8-ui" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chip8-rust/chip8-ui on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/chip8-rust/chip8-ui
[INFO] finished tweaking git repo https://github.com/chip8-rust/chip8-ui
[INFO] tweaked toml for git repo https://github.com/chip8-rust/chip8-ui written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/chip8-rust/chip8-ui already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ebd2a666a038b8b2876f7eddb2fe746fe8e25f8bd06ab551b0646302cdbf984e
[INFO] running `"docker" "start" "-a" "ebd2a666a038b8b2876f7eddb2fe746fe8e25f8bd06ab551b0646302cdbf984e"`
[INFO] [stderr]     Checking pistoncore-window v0.20.0
[INFO] [stderr]     Checking gfx_core v0.3.1
[INFO] [stderr]     Checking chip8_vm v0.4.0
[INFO] [stderr]     Checking freetype-rs v0.9.0
[INFO] [stderr]     Checking image v0.10.4
[INFO] [stderr]     Checking pistoncore-event_loop v0.23.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.27.0
[INFO] [stderr]     Checking pistoncore-sdl2_window v0.31.0
[INFO] [stderr]     Checking piston v0.23.0
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.30.0
[INFO] [stderr]     Checking gfx v0.11.0
[INFO] [stderr]     Checking gfx_device_gl v0.10.0
[INFO] [stderr]     Checking piston-gfx_texture v0.15.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.29.0
[INFO] [stderr]     Checking piston_window v0.49.0
[INFO] [stderr]     Checking chip8_ui v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.99s
[INFO] running `"docker" "inspect" "ebd2a666a038b8b2876f7eddb2fe746fe8e25f8bd06ab551b0646302cdbf984e"`
[INFO] running `"docker" "rm" "-f" "ebd2a666a038b8b2876f7eddb2fe746fe8e25f8bd06ab551b0646302cdbf984e"`
[INFO] [stdout] ebd2a666a038b8b2876f7eddb2fe746fe8e25f8bd06ab551b0646302cdbf984e