[INFO] cloning repository https://github.com/aengusmcmillin/rust_chip8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aengusmcmillin/rust_chip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faengusmcmillin%2Frust_chip8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faengusmcmillin%2Frust_chip8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bce1fdd63f0f120990dee4d705cfed9533b2a991
[INFO] documenting aengusmcmillin/rust_chip8 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faengusmcmillin%2Frust_chip8" "/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/aengusmcmillin/rust_chip8 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aengusmcmillin/rust_chip8
[INFO] finished tweaking git repo https://github.com/aengusmcmillin/rust_chip8
[INFO] tweaked toml for git repo https://github.com/aengusmcmillin/rust_chip8 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/aengusmcmillin/rust_chip8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-11/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[INFO] the lockfile is outdated, regenerating it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-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-complex v0.1.43
[INFO] [stderr]   Downloaded sdl2 v0.19.0
[INFO] [stderr]   Downloaded bitflags v0.6.0
[INFO] [stderr]   Downloaded num-bigint v0.1.44
[INFO] [stderr]   Downloaded sdl2-sys v0.19.0
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", 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] da2882e8d3184a983d87564be01b9fdd094dfc440e9ea3d0c5ba2ffe6aefb367
[INFO] running `Command { std: "docker" "start" "-a" "da2882e8d3184a983d87564be01b9fdd094dfc440e9ea3d0c5ba2ffe6aefb367", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da2882e8d3184a983d87564be01b9fdd094dfc440e9ea3d0c5ba2ffe6aefb367", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da2882e8d3184a983d87564be01b9fdd094dfc440e9ea3d0c5ba2ffe6aefb367", kill_on_drop: false }`
[INFO] [stdout] da2882e8d3184a983d87564be01b9fdd094dfc440e9ea3d0c5ba2ffe6aefb367
[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" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21b07fcd5d011fa42ef84240cc3b344e17676fd64c087f111640724d82d72dd9
[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" "21b07fcd5d011fa42ef84240cc3b344e17676fd64c087f111640724d82d72dd9", kill_on_drop: false }`
[INFO] [stderr]    Compiling sdl2-sys v0.19.0
[INFO] [stderr]     Checking bitflags v0.6.0
[INFO] [stderr]     Checking sdl2 v0.19.0
[INFO] [stderr]  Documenting rust_chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/cpu.rs:57:16
[INFO] [stdout]    |
[INFO] [stdout] 57 |             if (debug) {
[INFO] [stdout]    |                ^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/cpu.rs:59:20
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 if (self.interconnect.wait_for_step()) {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/cpu.rs:79:16
[INFO] [stdout]    |
[INFO] [stdout] 79 |             if (!st_enabled) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/interconnect.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |                 0.0...0.5 => self.volume,
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.68s
[INFO] running `Command { std: "docker" "inspect" "21b07fcd5d011fa42ef84240cc3b344e17676fd64c087f111640724d82d72dd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21b07fcd5d011fa42ef84240cc3b344e17676fd64c087f111640724d82d72dd9", kill_on_drop: false }`
[INFO] [stdout] 21b07fcd5d011fa42ef84240cc3b344e17676fd64c087f111640724d82d72dd9