[INFO] cloning repository https://github.com/mdm/ronald
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mdm/ronald" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdm%2Fronald", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdm%2Fronald'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8258df594965eb50b327d8ade34d1fae46873c87
[INFO] checking mdm/ronald against try#1c5262aa6c045a581fb974488793f09ed51fc498 for pr-78376
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdm%2Fronald" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mdm/ronald on toolchain 1c5262aa6c045a581fb974488793f09ed51fc498
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mdm/ronald
[INFO] finished tweaking git repo https://github.com/mdm/ronald
[INFO] tweaked toml for git repo https://github.com/mdm/ronald written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mdm/ronald already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1c5262aa6c045a581fb974488793f09ed51fc498" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26eff323715477d45e9cb1d57221ae5333397541232e67da48797e6addf769a7
[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" "26eff323715477d45e9cb1d57221ae5333397541232e67da48797e6addf769a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26eff323715477d45e9cb1d57221ae5333397541232e67da48797e6addf769a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26eff323715477d45e9cb1d57221ae5333397541232e67da48797e6addf769a7", kill_on_drop: false }`
[INFO] [stdout] 26eff323715477d45e9cb1d57221ae5333397541232e67da48797e6addf769a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0b930be509d3a2fd7c00f1d7432c2ca5a8c938c97c7022ab2ba1e4b8720d9d0
[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" "f0b930be509d3a2fd7c00f1d7432c2ca5a8c938c97c7022ab2ba1e4b8720d9d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking ronald v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `port`
[INFO] [stdout]   --> src/bus.rs:17:29
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn read_byte(&self, port: u16) -> u8 {
[INFO] [stdout]    |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_port`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port`
[INFO] [stdout]   --> src/bus.rs:21:34
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn write_byte(&mut self, port: u16, value: u8) {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_port`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/bus.rs:21:45
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn write_byte(&mut self, port: u16, value: u8) {
[INFO] [stdout]    |                                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port`
[INFO] [stdout]   --> src/bus.rs:17:29
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn read_byte(&self, port: u16) -> u8 {
[INFO] [stdout]    |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_port`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port`
[INFO] [stdout]   --> src/bus.rs:21:34
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn write_byte(&mut self, port: u16, value: u8) {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_port`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/bus.rs:21:45
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn write_byte(&mut self, port: u16, value: u8) {
[INFO] [stdout]    |                                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/crtc.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut crtc = CRTC {
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_state`
[INFO] [stdout]     --> src/cpu.rs:1087:8
[INFO] [stdout]      |
[INFO] [stdout] 1087 |     fn print_state(&self) {
[INFO] [stdout]      |        ^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `timing`
[INFO] [stdout]    --> src/instruction.rs:196:8
[INFO] [stdout]     |
[INFO] [stdout] 196 |     fn timing(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `decode_next`
[INFO] [stdout]    --> src/instruction.rs:473:12
[INFO] [stdout]     |
[INFO] [stdout] 473 |     pub fn decode_next<M: Read>(&mut self, memory: &M) -> (Instruction, usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_file`
[INFO] [stdout]   --> src/memory.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn from_file(path: &str) -> ROM {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_to_file`
[INFO] [stdout]   --> src/memory.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn write_to_file(&self, file: &mut File) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/memory.rs:93:12
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn new() -> Memory {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Register`
[INFO] [stdout]  --> src/crtc.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Register {
[INFO] [stdout]   |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CRTC`
[INFO] [stdout]   --> src/crtc.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct CRTC {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/crtc.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn new() -> CRTC {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `select_register`
[INFO] [stdout]   --> src/crtc.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn select_register(&mut self, register: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_register`
[INFO] [stdout]   --> src/crtc.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn write_register(&mut self, value: u8) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_register`
[INFO] [stdout]   --> src/crtc.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn read_register(&self) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_address`
[INFO] [stdout]   --> src/crtc.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn read_address(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_display_enabled`
[INFO] [stdout]   --> src/crtc.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn read_display_enabled(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_horizontal_sync`
[INFO] [stdout]   --> src/crtc.rs:91:12
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn read_horizontal_sync(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_vertical_sync`
[INFO] [stdout]   --> src/crtc.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn read_vertical_sync(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate_next_address`
[INFO] [stdout]    --> src/crtc.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn generate_next_address(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CPC464`
[INFO] [stdout]   --> src/system.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | struct CPC464 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/system.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn new() -> CPC464 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Bus`
[INFO] [stdout]  --> src/bus.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Bus {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bus.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new() -> Bus {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_byte`
[INFO] [stdout]   --> src/bus.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn read_byte(&self, port: u16) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_byte`
[INFO] [stdout]   --> src/bus.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn write_byte(&mut self, port: u16, value: u8) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decode`
[INFO] [stdout]   --> src/main.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn decode(path: &str) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/crtc.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut crtc = CRTC {
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_state`
[INFO] [stdout]     --> src/cpu.rs:1087:8
[INFO] [stdout]      |
[INFO] [stdout] 1087 |     fn print_state(&self) {
[INFO] [stdout]      |        ^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `timing`
[INFO] [stdout]    --> src/instruction.rs:196:8
[INFO] [stdout]     |
[INFO] [stdout] 196 |     fn timing(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `decode_next`
[INFO] [stdout]    --> src/instruction.rs:473:12
[INFO] [stdout]     |
[INFO] [stdout] 473 |     pub fn decode_next<M: Read>(&mut self, memory: &M) -> (Instruction, usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_file`
[INFO] [stdout]   --> src/memory.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn from_file(path: &str) -> ROM {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_to_file`
[INFO] [stdout]   --> src/memory.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn write_to_file(&self, file: &mut File) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/memory.rs:93:12
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn new() -> Memory {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Register`
[INFO] [stdout]  --> src/crtc.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Register {
[INFO] [stdout]   |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CRTC`
[INFO] [stdout]   --> src/crtc.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct CRTC {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/crtc.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn new() -> CRTC {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `select_register`
[INFO] [stdout]   --> src/crtc.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn select_register(&mut self, register: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_register`
[INFO] [stdout]   --> src/crtc.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn write_register(&mut self, value: u8) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_register`
[INFO] [stdout]   --> src/crtc.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn read_register(&self) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_address`
[INFO] [stdout]   --> src/crtc.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn read_address(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_display_enabled`
[INFO] [stdout]   --> src/crtc.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn read_display_enabled(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_horizontal_sync`
[INFO] [stdout]   --> src/crtc.rs:91:12
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn read_horizontal_sync(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_vertical_sync`
[INFO] [stdout]   --> src/crtc.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn read_vertical_sync(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate_next_address`
[INFO] [stdout]    --> src/crtc.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn generate_next_address(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CPC464`
[INFO] [stdout]   --> src/system.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | struct CPC464 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/system.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn new() -> CPC464 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Bus`
[INFO] [stdout]  --> src/bus.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Bus {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bus.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new() -> Bus {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_byte`
[INFO] [stdout]   --> src/bus.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn read_byte(&self, port: u16) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_byte`
[INFO] [stdout]   --> src/bus.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn write_byte(&mut self, port: u16, value: u8) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decode`
[INFO] [stdout]   --> src/main.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn decode(path: &str) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.65s
[INFO] running `Command { std: "docker" "inspect" "f0b930be509d3a2fd7c00f1d7432c2ca5a8c938c97c7022ab2ba1e4b8720d9d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0b930be509d3a2fd7c00f1d7432c2ca5a8c938c97c7022ab2ba1e4b8720d9d0", kill_on_drop: false }`
[INFO] [stdout] f0b930be509d3a2fd7c00f1d7432c2ca5a8c938c97c7022ab2ba1e4b8720d9d0