[INFO] cloning repository https://github.com/StevenLaabs/chip8-emulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/StevenLaabs/chip8-emulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStevenLaabs%2Fchip8-emulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStevenLaabs%2Fchip8-emulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f8105f67e3899d47b0f864b058381fff210c8ec
[INFO] checking StevenLaabs/chip8-emulator against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStevenLaabs%2Fchip8-emulator" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/StevenLaabs/chip8-emulator on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/StevenLaabs/chip8-emulator
[INFO] finished tweaking git repo https://github.com/StevenLaabs/chip8-emulator
[INFO] tweaked toml for git repo https://github.com/StevenLaabs/chip8-emulator written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/StevenLaabs/chip8-emulator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-7/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e6e9d9f6968d3b397b0d48b839d53d4ad7019725eb6821ca82953792fae5ee1
[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" "3e6e9d9f6968d3b397b0d48b839d53d4ad7019725eb6821ca82953792fae5ee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e6e9d9f6968d3b397b0d48b839d53d4ad7019725eb6821ca82953792fae5ee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e6e9d9f6968d3b397b0d48b839d53d4ad7019725eb6821ca82953792fae5ee1", kill_on_drop: false }`
[INFO] [stdout] 3e6e9d9f6968d3b397b0d48b839d53d4ad7019725eb6821ca82953792fae5ee1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e407c63eaddb90cf66c444124b650fc24be418807a49ca2451a88991af5ba508
[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" "e407c63eaddb90cf66c444124b650fc24be418807a49ca2451a88991af5ba508", kill_on_drop: false }`
[INFO] [stderr]    Compiling sdl2-sys v0.21.0
[INFO] [stderr]     Checking bitflags v0.6.0
[INFO] [stderr]     Checking sdl2 v0.21.0
[INFO] [stderr]     Checking chip8_emulator v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/cpu.rs:58:24
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let rom_file = try!(File::open(rom_path).map_err(|e| e.to_string()));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/cpu.rs:58:24
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let rom_file = try!(File::open(rom_path).map_err(|e| e.to_string()));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.04s
[INFO] running `Command { std: "docker" "inspect" "e407c63eaddb90cf66c444124b650fc24be418807a49ca2451a88991af5ba508", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e407c63eaddb90cf66c444124b650fc24be418807a49ca2451a88991af5ba508", kill_on_drop: false }`
[INFO] [stdout] e407c63eaddb90cf66c444124b650fc24be418807a49ca2451a88991af5ba508