[INFO] cloning repository https://github.com/ioncodes/Xiu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ioncodes/Xiu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fioncodes%2FXiu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fioncodes%2FXiu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a645fadb116de275c2a9af8e76d6001a58d2156b
[INFO] checking ioncodes/Xiu against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fioncodes%2FXiu" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ioncodes/Xiu on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ioncodes/Xiu
[INFO] finished tweaking git repo https://github.com/ioncodes/Xiu
[INFO] tweaked toml for git repo https://github.com/ioncodes/Xiu written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ioncodes/Xiu already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a40f9684ecb02e83e79b41fc5b7fa2b23ef108a91069b08ea6beb7b602e05bd
[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" "6a40f9684ecb02e83e79b41fc5b7fa2b23ef108a91069b08ea6beb7b602e05bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a40f9684ecb02e83e79b41fc5b7fa2b23ef108a91069b08ea6beb7b602e05bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a40f9684ecb02e83e79b41fc5b7fa2b23ef108a91069b08ea6beb7b602e05bd", kill_on_drop: false }`
[INFO] [stdout] 6a40f9684ecb02e83e79b41fc5b7fa2b23ef108a91069b08ea6beb7b602e05bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ff1390d5fce4fc55a3043563c6189c404a58fe3d1aecb65ee163dc00ac79c17
[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" "0ff1390d5fce4fc55a3043563c6189c404a58fe3d1aecb65ee163dc00ac79c17", kill_on_drop: false }`
[INFO] [stderr]     Checking xiu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `register`
[INFO] [stdout]    --> src/cpu.rs:113:22
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn rl(&mut self, register: Register) -> Option<Vec<usize>> {
[INFO] [stdout]     |                      ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_register`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `register`
[INFO] [stdout]    --> src/cpu.rs:113:22
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn rl(&mut self, register: Register) -> Option<Vec<usize>> {
[INFO] [stdout]     |                      ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_register`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:165:9
[INFO] [stdout]     |
[INFO] [stdout] 165 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:181:9
[INFO] [stdout]     |
[INFO] [stdout] 181 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 187 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 213 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:219:9
[INFO] [stdout]     |
[INFO] [stdout] 219 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 246 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:253:9
[INFO] [stdout]     |
[INFO] [stdout] 253 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:260:9
[INFO] [stdout]     |
[INFO] [stdout] 260 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:267:9
[INFO] [stdout]     |
[INFO] [stdout] 267 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:274:9
[INFO] [stdout]     |
[INFO] [stdout] 274 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:281:9
[INFO] [stdout]     |
[INFO] [stdout] 281 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:288:9
[INFO] [stdout]     |
[INFO] [stdout] 288 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:295:9
[INFO] [stdout]     |
[INFO] [stdout] 295 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `A`
[INFO] [stdout]  --> src/registers.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     A,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `D`
[INFO] [stdout]  --> src/registers.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     D,
[INFO] [stdout]   |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `E`
[INFO] [stdout]  --> src/registers.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     E,
[INFO] [stdout]   |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `F`
[INFO] [stdout]  --> src/registers.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     F,
[INFO] [stdout]   |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `H`
[INFO] [stdout]   --> src/registers.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     H,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `L`
[INFO] [stdout]   --> src/registers.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     L,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AF`
[INFO] [stdout]   --> src/registers.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     AF,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DE`
[INFO] [stdout]   --> src/registers.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     DE,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `HL`
[INFO] [stdout]   --> src/registers.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     HL,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop`
[INFO] [stdout]   --> src/stack.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn pop(&mut self) -> u16 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_assembly`
[INFO] [stdout]   --> src/instructions.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub fn get_assembly(instr: u8) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_prefixed_assembly`
[INFO] [stdout]   --> src/instructions.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn get_prefixed_assembly(instr: u8) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: literal out of range for `u8`
[INFO] [stdout]    --> src/registers.rs:325:12
[INFO] [stdout]     |
[INFO] [stdout] 325 |         -((256 + (!byte + 1)) as i8)
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(overflowing_literals)]` on by default
[INFO] [stdout]     = note: the literal `256` does not fit into the type `u8` whose range is `0..=255`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `xiu`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:165:9
[INFO] [stdout]     |
[INFO] [stdout] 165 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:181:9
[INFO] [stdout]     |
[INFO] [stdout] 181 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 187 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 213 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:219:9
[INFO] [stdout]     |
[INFO] [stdout] 219 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 246 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:253:9
[INFO] [stdout]     |
[INFO] [stdout] 253 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:260:9
[INFO] [stdout]     |
[INFO] [stdout] 260 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:267:9
[INFO] [stdout]     |
[INFO] [stdout] 267 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:274:9
[INFO] [stdout]     |
[INFO] [stdout] 274 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:281:9
[INFO] [stdout]     |
[INFO] [stdout] 281 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:288:9
[INFO] [stdout]     |
[INFO] [stdout] 288 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/registers.rs:295:9
[INFO] [stdout]     |
[INFO] [stdout] 295 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `A`
[INFO] [stdout]  --> src/registers.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     A,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `D`
[INFO] [stdout]  --> src/registers.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     D,
[INFO] [stdout]   |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `E`
[INFO] [stdout]  --> src/registers.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     E,
[INFO] [stdout]   |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `F`
[INFO] [stdout]  --> src/registers.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     F,
[INFO] [stdout]   |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `H`
[INFO] [stdout]   --> src/registers.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     H,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `L`
[INFO] [stdout]   --> src/registers.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     L,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AF`
[INFO] [stdout]   --> src/registers.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     AF,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DE`
[INFO] [stdout]   --> src/registers.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     DE,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `HL`
[INFO] [stdout]   --> src/registers.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     HL,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop`
[INFO] [stdout]   --> src/stack.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn pop(&mut self) -> u16 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_assembly`
[INFO] [stdout]   --> src/instructions.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub fn get_assembly(instr: u8) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_prefixed_assembly`
[INFO] [stdout]   --> src/instructions.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn get_prefixed_assembly(instr: u8) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: literal out of range for `u8`
[INFO] [stdout]    --> src/registers.rs:325:12
[INFO] [stdout]     |
[INFO] [stdout] 325 |         -((256 + (!byte + 1)) as i8)
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(overflowing_literals)]` on by default
[INFO] [stdout]     = note: the literal `256` does not fit into the type `u8` whose range is `0..=255`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0ff1390d5fce4fc55a3043563c6189c404a58fe3d1aecb65ee163dc00ac79c17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ff1390d5fce4fc55a3043563c6189c404a58fe3d1aecb65ee163dc00ac79c17", kill_on_drop: false }`
[INFO] [stdout] 0ff1390d5fce4fc55a3043563c6189c404a58fe3d1aecb65ee163dc00ac79c17