[INFO] cloning repository https://github.com/emanuele-em/chip-8-simulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emanuele-em/chip-8-simulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator'...
[INFO] [stderr] error: copy-fd: write returned: No space left on device
[INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/sendemail-validate.sample' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator/hooks/sendemail-validate.sample': No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/emanuele-em/chip-8-simulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emanuele-em/chip-8-simulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 2)
[INFO] cloning repository https://github.com/emanuele-em/chip-8-simulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emanuele-em/chip-8-simulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 3)
[INFO] cloning repository https://github.com/emanuele-em/chip-8-simulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emanuele-em/chip-8-simulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 4)
[INFO] cloning repository https://github.com/emanuele-em/chip-8-simulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emanuele-em/chip-8-simulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 5)
[INFO] cloning repository https://github.com/emanuele-em/chip-8-simulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emanuele-em/chip-8-simulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 6)
[INFO] cloning repository https://github.com/emanuele-em/chip-8-simulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emanuele-em/chip-8-simulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 7)
[INFO] cloning repository https://github.com/emanuele-em/chip-8-simulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emanuele-em/chip-8-simulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 8)
[INFO] cloning repository https://github.com/emanuele-em/chip-8-simulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emanuele-em/chip-8-simulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 9)
[INFO] cloning repository https://github.com/emanuele-em/chip-8-simulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emanuele-em/chip-8-simulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 10)
[INFO] cloning repository https://github.com/emanuele-em/chip-8-simulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emanuele-em/chip-8-simulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 11)
[INFO] cloning repository https://github.com/emanuele-em/chip-8-simulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emanuele-em/chip-8-simulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 12)
[INFO] cloning repository https://github.com/emanuele-em/chip-8-simulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emanuele-em/chip-8-simulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 13)
[INFO] cloning repository https://github.com/emanuele-em/chip-8-simulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emanuele-em/chip-8-simulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e0724b47d250c53c727107121ebc73c1f3ef6b2f
[INFO] checking emanuele-em/chip-8-simulator against master#3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0 for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] fatal: could not create work tree dir '/workspace/builds/worker-1-tc2/source': No space left on device
[INFO] checking emanuele-em/chip-8-simulator against master#3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0 for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/emanuele-em/chip-8-simulator
[INFO] finished tweaking git repo https://github.com/emanuele-em/chip-8-simulator
[INFO] tweaked toml for git repo https://github.com/emanuele-em/chip-8-simulator written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/emanuele-em/chip-8-simulator on toolchain 3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/emanuele-em/chip-8-simulator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4e9db2606863099bf326c92fadbdf88cebcaa129d57d45e520d2261445336d9
[INFO] running `Command { std: "docker" "start" "-a" "a4e9db2606863099bf326c92fadbdf88cebcaa129d57d45e520d2261445336d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4e9db2606863099bf326c92fadbdf88cebcaa129d57d45e520d2261445336d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4e9db2606863099bf326c92fadbdf88cebcaa129d57d45e520d2261445336d9", kill_on_drop: false }`
[INFO] [stdout] a4e9db2606863099bf326c92fadbdf88cebcaa129d57d45e520d2261445336d9
[INFO] checking emanuele-em/chip-8-simulator against master#3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0 for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanuele-em%2Fchip-8-simulator" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/emanuele-em/chip-8-simulator
[INFO] finished tweaking git repo https://github.com/emanuele-em/chip-8-simulator
[INFO] tweaked toml for git repo https://github.com/emanuele-em/chip-8-simulator written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/emanuele-em/chip-8-simulator on toolchain 3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/emanuele-em/chip-8-simulator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ddcf1ab79f631b366e9389952ad750f6bd4a4bc629a151058f0fad15a5175795
[INFO] running `Command { std: "docker" "start" "-a" "ddcf1ab79f631b366e9389952ad750f6bd4a4bc629a151058f0fad15a5175795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddcf1ab79f631b366e9389952ad750f6bd4a4bc629a151058f0fad15a5175795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddcf1ab79f631b366e9389952ad750f6bd4a4bc629a151058f0fad15a5175795", kill_on_drop: false }`
[INFO] [stdout] ddcf1ab79f631b366e9389952ad750f6bd4a4bc629a151058f0fad15a5175795
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b03fc54e0c2409e4679d052cf1dc6a68c7250a37bc8b68f6e43218075d60b7cb
[INFO] running `Command { std: "docker" "start" "-a" "b03fc54e0c2409e4679d052cf1dc6a68c7250a37bc8b68f6e43218075d60b7cb", kill_on_drop: false }`
[INFO] [stderr]     Checking chip-8-simulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the type `[u8]` cannot be indexed by `u8`
[INFO] [stdout]    --> src/main.rs:144:46
[INFO] [stdout]     |
[INFO] [stdout] 144 |         self.registers[0xF] = self.registers[x] & 1;
[INFO] [stdout]     |                                              ^ slice indices are of type `usize` or ranges of `usize`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `SliceIndex<[u8]>` is not implemented for `u8`
[INFO] [stdout]     = help: the following other types implement trait `SliceIndex<T>`:
[INFO] [stdout]               `usize` implements `SliceIndex<ByteStr>`
[INFO] [stdout]               `usize` implements `SliceIndex<[T]>`
[INFO] [stdout]     = note: required for `[u8]` to implement `Index<u8>`
[INFO] [stdout]     = note: 1 redundant requirement hidden
[INFO] [stdout]     = note: required for `[u8; 16]` to implement `Index<u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the type `[u8]` cannot be indexed by `u8`
[INFO] [stdout]    --> src/main.rs:144:46
[INFO] [stdout]     |
[INFO] [stdout] 144 |         self.registers[0xF] = self.registers[x] & 1;
[INFO] [stdout]     |                                              ^ slice indices are of type `usize` or ranges of `usize`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `SliceIndex<[u8]>` is not implemented for `u8`
[INFO] [stdout]     = help: the following other types implement trait `SliceIndex<T>`:
[INFO] [stdout]               `usize` implements `SliceIndex<ByteStr>`
[INFO] [stdout]               `usize` implements `SliceIndex<[T]>`
[INFO] [stdout]     = note: required for `[u8]` to implement `Index<u8>`
[INFO] [stdout]     = note: 1 redundant requirement hidden
[INFO] [stdout]     = note: required for `[u8; 16]` to implement `Index<u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the type `[u8]` cannot be indexed by `u8`
[INFO] [stdout]    --> src/main.rs:145:24
[INFO] [stdout]     |
[INFO] [stdout] 145 |         self.registers[x] >>= 1;
[INFO] [stdout]     |                        ^ slice indices are of type `usize` or ranges of `usize`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `SliceIndex<[u8]>` is not implemented for `u8`
[INFO] [stdout]     = help: the following other types implement trait `SliceIndex<T>`:
[INFO] [stdout]               `usize` implements `SliceIndex<ByteStr>`
[INFO] [stdout]               `usize` implements `SliceIndex<[T]>`
[INFO] [stdout]     = note: required for `[u8]` to implement `Index<u8>`
[INFO] [stdout]     = note: 1 redundant requirement hidden
[INFO] [stdout]     = note: required for `[u8; 16]` to implement `Index<u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the type `[u8]` cannot be indexed by `u8`
[INFO] [stdout]    --> src/main.rs:145:24
[INFO] [stdout]     |
[INFO] [stdout] 145 |         self.registers[x] >>= 1;
[INFO] [stdout]     |                        ^ slice indices are of type `usize` or ranges of `usize`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `SliceIndex<[u8]>` is not implemented for `u8`
[INFO] [stdout]     = help: the following other types implement trait `SliceIndex<T>`:
[INFO] [stdout]               `usize` implements `SliceIndex<ByteStr>`
[INFO] [stdout]               `usize` implements `SliceIndex<[T]>`
[INFO] [stdout]     = note: required for `[u8]` to implement `Index<u8>`
[INFO] [stdout]     = note: 1 redundant requirement hidden
[INFO] [stdout]     = note: required for `[u8; 16]` to implement `Index<u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the type `[u8]` cannot be indexed by `u8`
[INFO] [stdout]    --> src/main.rs:149:48
[INFO] [stdout]     |
[INFO] [stdout] 149 |         self.registers[0x0f] = (self.registers[x] & 0b10000000) >> 7;
[INFO] [stdout]     |                                                ^ slice indices are of type `usize` or ranges of `usize`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `SliceIndex<[u8]>` is not implemented for `u8`
[INFO] [stdout]     = help: the following other types implement trait `SliceIndex<T>`:
[INFO] [stdout]               `usize` implements `SliceIndex<ByteStr>`
[INFO] [stdout]               `usize` implements `SliceIndex<[T]>`
[INFO] [stdout]     = note: required for `[u8]` to implement `Index<u8>`
[INFO] [stdout]     = note: 1 redundant requirement hidden
[INFO] [stdout]     = note: required for `[u8; 16]` to implement `Index<u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the type `[u8]` cannot be indexed by `u8`
[INFO] [stdout]    --> src/main.rs:149:48
[INFO] [stdout]     |
[INFO] [stdout] 149 |         self.registers[0x0f] = (self.registers[x] & 0b10000000) >> 7;
[INFO] [stdout]     |                                                ^ slice indices are of type `usize` or ranges of `usize`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `SliceIndex<[u8]>` is not implemented for `u8`
[INFO] [stdout]     = help: the following other types implement trait `SliceIndex<T>`:
[INFO] [stdout]               `usize` implements `SliceIndex<ByteStr>`
[INFO] [stdout]               `usize` implements `SliceIndex<[T]>`
[INFO] [stdout]     = note: required for `[u8]` to implement `Index<u8>`
[INFO] [stdout]     = note: 1 redundant requirement hidden
[INFO] [stdout]     = note: required for `[u8; 16]` to implement `Index<u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the type `[u8]` cannot be indexed by `u8`
[INFO] [stdout]    --> src/main.rs:150:24
[INFO] [stdout]     |
[INFO] [stdout] 150 |         self.registers[x] <<= 1;
[INFO] [stdout]     |                        ^ slice indices are of type `usize` or ranges of `usize`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `SliceIndex<[u8]>` is not implemented for `u8`
[INFO] [stdout]     = help: the following other types implement trait `SliceIndex<T>`:
[INFO] [stdout]               `usize` implements `SliceIndex<ByteStr>`
[INFO] [stdout]               `usize` implements `SliceIndex<[T]>`
[INFO] [stdout]     = note: required for `[u8]` to implement `Index<u8>`
[INFO] [stdout]     = note: 1 redundant requirement hidden
[INFO] [stdout]     = note: required for `[u8; 16]` to implement `Index<u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the type `[u8]` cannot be indexed by `u8`
[INFO] [stdout]    --> src/main.rs:150:24
[INFO] [stdout]     |
[INFO] [stdout] 150 |         self.registers[x] <<= 1;
[INFO] [stdout]     |                        ^ slice indices are of type `usize` or ranges of `usize`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `SliceIndex<[u8]>` is not implemented for `u8`
[INFO] [stdout]     = help: the following other types implement trait `SliceIndex<T>`:
[INFO] [stdout]               `usize` implements `SliceIndex<ByteStr>`
[INFO] [stdout]               `usize` implements `SliceIndex<[T]>`
[INFO] [stdout]     = note: required for `[u8]` to implement `Index<u8>`
[INFO] [stdout]     = note: 1 redundant requirement hidden
[INFO] [stdout]     = note: required for `[u8; 16]` to implement `Index<u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chip-8-simulator` (bin "chip-8-simulator" test) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `chip-8-simulator` (bin "chip-8-simulator") due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "b03fc54e0c2409e4679d052cf1dc6a68c7250a37bc8b68f6e43218075d60b7cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b03fc54e0c2409e4679d052cf1dc6a68c7250a37bc8b68f6e43218075d60b7cb", kill_on_drop: false }`
[INFO] [stdout] b03fc54e0c2409e4679d052cf1dc6a68c7250a37bc8b68f6e43218075d60b7cb