[INFO] updating cached repository https://github.com/TheDerek/chip8-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] [stderr] From https://github.com/TheDerek/chip8-rust
[INFO] [stderr]    3f6d113..7fed1af  master     -> master
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7fed1af2513821e3fbf1307321aa2665aa9f9d91
[INFO] checking TheDerek/chip8-rust against try#0ab79c4b48ad19260fa46623f452c1b403a360e8 for pr-74315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheDerek%2Fchip8-rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TheDerek/chip8-rust on toolchain 0ab79c4b48ad19260fa46623f452c1b403a360e8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TheDerek/chip8-rust
[INFO] finished tweaking git repo https://github.com/TheDerek/chip8-rust
[INFO] tweaked toml for git repo https://github.com/TheDerek/chip8-rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/TheDerek/chip8-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af40b0672c47eaae6dce710236c83866347dd3288d8b68f32568c25d5feaa0cf
[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" "af40b0672c47eaae6dce710236c83866347dd3288d8b68f32568c25d5feaa0cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af40b0672c47eaae6dce710236c83866347dd3288d8b68f32568c25d5feaa0cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af40b0672c47eaae6dce710236c83866347dd3288d8b68f32568c25d5feaa0cf", kill_on_drop: false }`
[INFO] [stdout] af40b0672c47eaae6dce710236c83866347dd3288d8b68f32568c25d5feaa0cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e684573dd481392084536488529383c5f177121d196a62d637ef3766735da5a4
[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" "e684573dd481392084536488529383c5f177121d196a62d637ef3766735da5a4", kill_on_drop: false }`
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking sdl2 v0.31.0
[INFO] [stderr]     Checking chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `ident`
[INFO] [stdout]  --> src/emulator/opcodes.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn ident(emu: &Emulator, _: u16) -> Emulator {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `system`
[INFO] [stdout]   --> src/emulator/opcodes.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn system(emu: &Emulator, value: u16) -> Emulator {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `return_from_subroutine`
[INFO] [stdout]   --> src/emulator/opcodes.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn return_from_subroutine(emu: &Emulator, _: u16) -> Emulator {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `goto`
[INFO] [stdout]   --> src/emulator/opcodes.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn goto(emu: &Emulator, value: u16) -> Emulator {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `call_subroutine`
[INFO] [stdout]   --> src/emulator/opcodes.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn call_subroutine(emu: &Emulator, value: u16) -> Emulator {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `skip_true`
[INFO] [stdout]   --> src/emulator/opcodes.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn skip_true(emu: &Emulator, value: u16) -> Emulator {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `skip_false`
[INFO] [stdout]   --> src/emulator/opcodes.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub fn skip_false(emu: &Emulator, value: u16) -> Emulator {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `skip_equals`
[INFO] [stdout]   --> src/emulator/opcodes.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub fn skip_equals(emu: &Emulator, value: u16) -> Emulator {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `skip_not_equals`
[INFO] [stdout]   --> src/emulator/opcodes.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub fn skip_not_equals(emu: &Emulator, value: u16) -> Emulator {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `skip_condition`
[INFO] [stdout]   --> src/emulator/opcodes.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub fn skip_condition(condition: fn(u8, u8) -> bool) -> Box<dyn Fn(&Emulator, u16) -> Emulator> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_register`
[INFO] [stdout]    --> src/emulator/opcodes.rs:112:8
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub fn set_register(emu: &Emulator, value: u16) -> Emulator {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add_to_register`
[INFO] [stdout]    --> src/emulator/opcodes.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub fn add_to_register(emu: &Emulator, value: u16) -> Emulator {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_index_register`
[INFO] [stdout]    --> src/emulator/opcodes.rs:138:8
[INFO] [stdout]     |
[INFO] [stdout] 138 | pub fn set_index_register(emu: &Emulator, value: u16) -> Emulator {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `maths_ops`
[INFO] [stdout]    --> src/emulator/opcodes.rs:147:8
[INFO] [stdout]     |
[INFO] [stdout] 147 | pub fn maths_ops(emu: &Emulator, value: u16) -> Emulator {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `addition_carry`
[INFO] [stdout]    --> src/emulator/opcodes.rs:181:4
[INFO] [stdout]     |
[INFO] [stdout] 181 | fn addition_carry(x: u8, y: u8) -> (u8, u8) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `minus_carry`
[INFO] [stdout]    --> src/emulator/opcodes.rs:192:4
[INFO] [stdout]     |
[INFO] [stdout] 192 | fn minus_carry(x: u8, y: u8) -> (u8, u8) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `goto_plus_register`
[INFO] [stdout]    --> src/emulator/opcodes.rs:202:8
[INFO] [stdout]     |
[INFO] [stdout] 202 | pub fn goto_plus_register(emu: &Emulator, value: u16) -> Emulator {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rand`
[INFO] [stdout]    --> src/emulator/opcodes.rs:209:8
[INFO] [stdout]     |
[INFO] [stdout] 209 | pub fn rand(emu: &Emulator, value: u16) -> Emulator {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `draw`
[INFO] [stdout]    --> src/emulator/opcodes.rs:223:8
[INFO] [stdout]     |
[INFO] [stdout] 223 | pub fn draw(emu: &Emulator, value: u16) -> Emulator {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_pixel`
[INFO] [stdout]    --> src/emulator/opcodes.rs:252:8
[INFO] [stdout]     |
[INFO] [stdout] 252 |     fn set_pixel(&mut self, x: u16, y: u16) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `opcode`
[INFO] [stdout]   --> src/emulator.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     opcode: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `registers`
[INFO] [stdout]   --> src/emulator.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     registers: [u8; 16],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `index_register`
[INFO] [stdout]   --> src/emulator.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     index_register: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `program_counter`
[INFO] [stdout]   --> src/emulator.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     program_counter: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `delay_timer`
[INFO] [stdout]   --> src/emulator.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     delay_timer: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sound_timer`
[INFO] [stdout]   --> src/emulator.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     sound_timer: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stack`
[INFO] [stdout]   --> src/emulator.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     stack: [u16; 16],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stack_pointer`
[INFO] [stdout]   --> src/emulator.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     stack_pointer: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `draw`
[INFO] [stdout]   --> src/emulator.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     draw: bool,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `clear`
[INFO] [stdout]   --> src/emulator.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     clear: bool
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_opcode`
[INFO] [stdout]   --> src/emulator.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn get_opcode(&self) -> u16 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `emulate_cycle`
[INFO] [stdout]   --> src/emulator.rs:81:12
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn emulate_cycle(&self) -> Emulator {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `deconstruct_opcode`
[INFO] [stdout]    --> src/emulator.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn deconstruct_opcode(opcode: u16) -> (u8, u16) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `opcode`
[INFO] [stdout]   --> src/emulator.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     opcode: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `delay_timer`
[INFO] [stdout]   --> src/emulator.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     delay_timer: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sound_timer`
[INFO] [stdout]   --> src/emulator.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     sound_timer: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `draw`
[INFO] [stdout]   --> src/emulator.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     draw: bool,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `clear`
[INFO] [stdout]   --> src/emulator.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     clear: bool
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.08s
[INFO] running `Command { std: "docker" "inspect" "e684573dd481392084536488529383c5f177121d196a62d637ef3766735da5a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e684573dd481392084536488529383c5f177121d196a62d637ef3766735da5a4", kill_on_drop: false }`
[INFO] [stdout] e684573dd481392084536488529383c5f177121d196a62d637ef3766735da5a4