[INFO] cloning repository https://github.com/juancgalan/rust-chip8
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/juancgalan/rust-chip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuancgalan%2Frust-chip8"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuancgalan%2Frust-chip8'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 73d8bd79744aeb52f2adad1d8e85a84ee5ca8ecf
[INFO] checking juancgalan/rust-chip8 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuancgalan%2Frust-chip8" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/juancgalan/rust-chip8 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/juancgalan/rust-chip8
[INFO] finished tweaking git repo https://github.com/juancgalan/rust-chip8
[INFO] tweaked toml for git repo https://github.com/juancgalan/rust-chip8 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/juancgalan/rust-chip8 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 62952838c59e5ea7f6cc7e7e7f702b2b8e04f4adc3f07dcae98951ae81148bae
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "62952838c59e5ea7f6cc7e7e7f702b2b8e04f4adc3f07dcae98951ae81148bae"`
[INFO] [stderr]     Checking chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]   --> src/vm.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let offset = address.unwrap_or(0x200);
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `opcode`
[INFO] [stderr]   --> src/vm.rs:37:26
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn before(&mut self, opcode: u16, addr: u16) { unimplemented!(); }
[INFO] [stderr]    |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_opcode`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/vm.rs:37:39
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn before(&mut self, opcode: u16, addr: u16) { unimplemented!(); }
[INFO] [stderr]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `opcode`
[INFO] [stderr]   --> src/vm.rs:38:27
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn unknown(&mut self, opcode: u16, addr: u16) { unimplemented!(); }
[INFO] [stderr]    |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_opcode`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/vm.rs:38:40
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn unknown(&mut self, opcode: u16, addr: u16) { unimplemented!(); }
[INFO] [stderr]    |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/vm.rs:41:23
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn jmp(&mut self, address: u16) { unimplemented!(); }
[INFO] [stderr]    |                       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/vm.rs:42:24
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn call(&mut self, address: u16) { unimplemented!(); }
[INFO] [stderr]    |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:43:23
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn jeq(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:43:31
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn jeq(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:44:24
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn jneq(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:44:32
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn jneq(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:45:24
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn jeqr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:45:32
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn jeqr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:46:23
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn set(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:46:31
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn set(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:47:23
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn add(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:47:31
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn add(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:48:24
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn setr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:48:32
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn setr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:49:22
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn or(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                      ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:49:30
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn or(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                              ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:50:23
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn and(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:50:31
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn and(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:51:23
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn xor(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:51:31
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn xor(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:52:24
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn addr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:52:32
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn addr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:53:23
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn sub(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:53:31
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn sub(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:54:23
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn shr(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:55:24
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn subb(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:55:32
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn subb(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:56:23
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn shl(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:57:25
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn jneqr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                         ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:57:33
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn jneqr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                                 ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:58:24
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn seti(&mut self, value: u16) { unimplemented!(); }
[INFO] [stderr]    |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/vm.rs:59:25
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn jmpv0(&mut self, address: u16) { unimplemented!(); }
[INFO] [stderr]    |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:60:24
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn rand(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:60:32
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn rand(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:61:24
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn draw(&mut self, vr: u8, vy: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:61:32
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn draw(&mut self, vr: u8, vy: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:61:40
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn draw(&mut self, vr: u8, vy: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:62:24
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn jkey(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:63:25
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn jnkey(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                         ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:64:28
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn getdelay(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                            ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:65:27
[INFO] [stderr]    |
[INFO] [stderr] 65 |     fn waitkey(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                           ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:66:28
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn setdelay(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                            ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:67:28
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn setsound(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                            ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:68:24
[INFO] [stderr]    |
[INFO] [stderr] 68 |     fn addi(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:69:27
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn spritei(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                           ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:70:23
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn bcd(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:71:24
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn push(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:72:23
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn pop(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]    --> src/disassembly.rs:140:32
[INFO] [stderr]     |
[INFO] [stderr] 140 |     fn draw(&mut self, vr: u8, vy: u8, value: u8) {
[INFO] [stderr]     |                                ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `v`
[INFO] [stderr]  --> src/vm.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     v: [u8; 16],
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `i`
[INFO] [stderr]  --> src/vm.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     i: u16,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `sound_timer`
[INFO] [stderr]  --> src/vm.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     sound_timer: u8,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `delay_timer`
[INFO] [stderr]  --> src/vm.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     delay_timer: u8,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `pc`
[INFO] [stderr]  --> src/vm.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pc: u16,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `sp`
[INFO] [stderr]   --> src/vm.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     sp: u8,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `memory`
[INFO] [stderr]   --> src/vm.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     memory: [u8; 4096]
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/vm.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn new() -> CPU {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `load_program`
[INFO] [stderr]   --> src/vm.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn load_program(&mut self, program: &[u8], address: Option<u16>) -> &CPU {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 63 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]   --> src/vm.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let offset = address.unwrap_or(0x200);
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `opcode`
[INFO] [stderr]   --> src/vm.rs:37:26
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn before(&mut self, opcode: u16, addr: u16) { unimplemented!(); }
[INFO] [stderr]    |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_opcode`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/vm.rs:37:39
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn before(&mut self, opcode: u16, addr: u16) { unimplemented!(); }
[INFO] [stderr]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `opcode`
[INFO] [stderr]   --> src/vm.rs:38:27
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn unknown(&mut self, opcode: u16, addr: u16) { unimplemented!(); }
[INFO] [stderr]    |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_opcode`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/vm.rs:38:40
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn unknown(&mut self, opcode: u16, addr: u16) { unimplemented!(); }
[INFO] [stderr]    |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/vm.rs:41:23
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn jmp(&mut self, address: u16) { unimplemented!(); }
[INFO] [stderr]    |                       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/vm.rs:42:24
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn call(&mut self, address: u16) { unimplemented!(); }
[INFO] [stderr]    |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:43:23
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn jeq(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:43:31
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn jeq(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:44:24
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn jneq(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:44:32
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn jneq(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:45:24
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn jeqr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:45:32
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn jeqr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:46:23
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn set(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:46:31
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn set(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:47:23
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn add(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:47:31
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn add(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:48:24
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn setr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:48:32
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn setr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:49:22
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn or(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                      ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:49:30
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn or(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                              ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:50:23
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn and(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:50:31
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn and(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:51:23
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn xor(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:51:31
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn xor(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:52:24
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn addr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:52:32
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn addr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:53:23
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn sub(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:53:31
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn sub(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:54:23
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn shr(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:55:24
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn subb(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:55:32
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn subb(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:56:23
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn shl(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:57:25
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn jneqr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                         ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:57:33
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn jneqr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                                 ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:58:24
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn seti(&mut self, value: u16) { unimplemented!(); }
[INFO] [stderr]    |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/vm.rs:59:25
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn jmpv0(&mut self, address: u16) { unimplemented!(); }
[INFO] [stderr]    |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:60:24
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn rand(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:60:32
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn rand(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:61:24
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn draw(&mut self, vr: u8, vy: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:61:32
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn draw(&mut self, vr: u8, vy: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:61:40
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn draw(&mut self, vr: u8, vy: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:62:24
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn jkey(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:63:25
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn jnkey(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                         ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:64:28
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn getdelay(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                            ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:65:27
[INFO] [stderr]    |
[INFO] [stderr] 65 |     fn waitkey(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                           ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:66:28
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn setdelay(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                            ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:67:28
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn setsound(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                            ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:68:24
[INFO] [stderr]    |
[INFO] [stderr] 68 |     fn addi(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:69:27
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn spritei(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                           ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:70:23
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn bcd(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:71:24
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn push(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:72:23
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn pop(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]    --> src/disassembly.rs:140:32
[INFO] [stderr]     |
[INFO] [stderr] 140 |     fn draw(&mut self, vr: u8, vy: u8, value: u8) {
[INFO] [stderr]     |                                ^^ help: if this is intentional, prefix it with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `v`
[INFO] [stderr]  --> src/vm.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     v: [u8; 16],
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `i`
[INFO] [stderr]  --> src/vm.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     i: u16,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `sound_timer`
[INFO] [stderr]  --> src/vm.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     sound_timer: u8,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `delay_timer`
[INFO] [stderr]  --> src/vm.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     delay_timer: u8,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `pc`
[INFO] [stderr]  --> src/vm.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pc: u16,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `sp`
[INFO] [stderr]   --> src/vm.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     sp: u8,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `memory`
[INFO] [stderr]   --> src/vm.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     memory: [u8; 4096]
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/vm.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn new() -> CPU {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `load_program`
[INFO] [stderr]   --> src/vm.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn load_program(&mut self, program: &[u8], address: Option<u16>) -> &CPU {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 63 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "62952838c59e5ea7f6cc7e7e7f702b2b8e04f4adc3f07dcae98951ae81148bae"`
[INFO] running `"docker" "rm" "-f" "62952838c59e5ea7f6cc7e7e7f702b2b8e04f4adc3f07dcae98951ae81148bae"`
[INFO] [stdout] 62952838c59e5ea7f6cc7e7e7f702b2b8e04f4adc3f07dcae98951ae81148bae