[INFO] updating cached repository RickyBoyd/rust-gbemu
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/RickyBoyd/rust-gbemu
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/RickyBoyd/rust-gbemu" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/RickyBoyd/rust-gbemu"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/RickyBoyd/rust-gbemu'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/RickyBoyd/rust-gbemu" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/RickyBoyd/rust-gbemu"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/RickyBoyd/rust-gbemu'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d08b4b96b1db1ad1fbcefbab0e276fab5c25e063
[INFO] sha for GitHub repo RickyBoyd/rust-gbemu: d08b4b96b1db1ad1fbcefbab0e276fab5c25e063
[INFO] validating manifest of RickyBoyd/rust-gbemu on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of RickyBoyd/rust-gbemu on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing RickyBoyd/rust-gbemu
[INFO] finished frobbing RickyBoyd/rust-gbemu
[INFO] frobbed toml for RickyBoyd/rust-gbemu written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/RickyBoyd/rust-gbemu/Cargo.toml
[INFO] started frobbing RickyBoyd/rust-gbemu
[INFO] finished frobbing RickyBoyd/rust-gbemu
[INFO] frobbed toml for RickyBoyd/rust-gbemu written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/RickyBoyd/rust-gbemu/Cargo.toml
[INFO] crate RickyBoyd/rust-gbemu has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing RickyBoyd/rust-gbemu against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/RickyBoyd/rust-gbemu:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 5393946eeddd58ea0b532be2240fa2ba27d176ae0893f77834190a1f7651dbb6
[INFO] running `"docker" "start" "-a" "5393946eeddd58ea0b532be2240fa2ba27d176ae0893f77834190a1f7651dbb6"`
[INFO] [stderr]    Compiling rust-gbemu v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std`
[INFO] [stderr]  --> src/cpu.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std;
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]  --> src/mmu.rs:8:30
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn write_byte(&self, addr: u16) {
[INFO] [stderr]   |                              ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/mmu.rs:12:30
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn write_word(&self, addr: u16) {
[INFO] [stderr]    |                              ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/mmu.rs:16:29
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn read_byte(&self, addr: u16) -> u8 {
[INFO] [stderr]    |                             ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/mmu.rs:20:29
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn read_word(&self, addr: u16) -> u16 {
[INFO] [stderr]    |                             ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Flag`
[INFO] [stderr]  --> src/cpu.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct Flag {
[INFO] [stderr]   | ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/cpu.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn new() -> Flag {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set`
[INFO] [stderr]   --> src/cpu.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn set(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `unset`
[INFO] [stderr]   --> src/cpu.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn unset(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `toggle`
[INFO] [stderr]   --> src/cpu.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn toggle(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Flags`
[INFO] [stderr]   --> src/cpu.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | struct Flags {
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/cpu.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn new() -> Flags {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset`
[INFO] [stderr]   --> src/cpu.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn reset(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Registers`
[INFO] [stderr]   --> src/cpu.rs:51:1
[INFO] [stderr]    |
[INFO] [stderr] 51 | struct Registers {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/cpu.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn new() -> Registers {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bc`
[INFO] [stderr]   --> src/cpu.rs:84:5
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn bc(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `de`
[INFO] [stderr]   --> src/cpu.rs:88:5
[INFO] [stderr]    |
[INFO] [stderr] 88 |     fn de(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `hl`
[INFO] [stderr]   --> src/cpu.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 |     fn hl(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_bc`
[INFO] [stderr]   --> src/cpu.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     fn set_bc(&mut self, v: u16) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_de`
[INFO] [stderr]    --> src/cpu.rs:101:5
[INFO] [stderr]     |
[INFO] [stderr] 101 |     fn set_de(&mut self, v: u16) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_hl`
[INFO] [stderr]    --> src/cpu.rs:106:5
[INFO] [stderr]     |
[INFO] [stderr] 106 |     fn set_hl(&mut self, v: u16) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Cpu`
[INFO] [stderr]    --> src/cpu.rs:112:1
[INFO] [stderr]     |
[INFO] [stderr] 112 | pub struct Cpu {
[INFO] [stderr]     | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/cpu.rs:117:5
[INFO] [stderr]     |
[INFO] [stderr] 117 |     pub fn new() -> Cpu {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add8`
[INFO] [stderr]    --> src/cpu.rs:123:5
[INFO] [stderr]     |
[INFO] [stderr] 123 |     fn add8(&mut self, x: u8, y: u8) -> u8 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `next_instuction_byte`
[INFO] [stderr]    --> src/cpu.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn next_instuction_byte(&mut self, mmu: &Mmu) -> u8 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `execute_cycle`
[INFO] [stderr]    --> src/cpu.rs:135:5
[INFO] [stderr]     |
[INFO] [stderr] 135 |     fn execute_cycle(&mut self, mmu: &Mmu) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `execute_instruction`
[INFO] [stderr]    --> src/cpu.rs:140:5
[INFO] [stderr]     |
[INFO] [stderr] 140 |     fn execute_instruction(&mut self, mmu: &Mmu) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WRAM_SIZE`
[INFO] [stderr]  --> src/mmu.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | const WRAM_SIZE: usize = 16000;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Mmu`
[INFO] [stderr]  --> src/mmu.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Mmu {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write_byte`
[INFO] [stderr]  --> src/mmu.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn write_byte(&self, addr: u16) {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write_word`
[INFO] [stderr]   --> src/mmu.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn write_word(&self, addr: u16) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_byte`
[INFO] [stderr]   --> src/mmu.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn read_byte(&self, addr: u16) -> u8 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_word`
[INFO] [stderr]   --> src/mmu.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn read_word(&self, addr: u16) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `"docker" "inspect" "5393946eeddd58ea0b532be2240fa2ba27d176ae0893f77834190a1f7651dbb6"`
[INFO] running `"docker" "rm" "-f" "5393946eeddd58ea0b532be2240fa2ba27d176ae0893f77834190a1f7651dbb6"`
[INFO] [stdout] 5393946eeddd58ea0b532be2240fa2ba27d176ae0893f77834190a1f7651dbb6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/RickyBoyd/rust-gbemu:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] eed4918b35b99cb0a97e1cb44afa176df0fe5d74b16b2cb28770134683e0dea3
[INFO] running `"docker" "start" "-a" "eed4918b35b99cb0a97e1cb44afa176df0fe5d74b16b2cb28770134683e0dea3"`
[INFO] [stderr]    Compiling rust-gbemu v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std`
[INFO] [stderr]  --> src/cpu.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std;
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]  --> src/mmu.rs:8:30
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn write_byte(&self, addr: u16) {
[INFO] [stderr]   |                              ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/mmu.rs:12:30
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn write_word(&self, addr: u16) {
[INFO] [stderr]    |                              ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/mmu.rs:16:29
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn read_byte(&self, addr: u16) -> u8 {
[INFO] [stderr]    |                             ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/mmu.rs:20:29
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn read_word(&self, addr: u16) -> u16 {
[INFO] [stderr]    |                             ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Flag`
[INFO] [stderr]  --> src/cpu.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct Flag {
[INFO] [stderr]   | ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/cpu.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn new() -> Flag {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set`
[INFO] [stderr]   --> src/cpu.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn set(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `unset`
[INFO] [stderr]   --> src/cpu.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn unset(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `toggle`
[INFO] [stderr]   --> src/cpu.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn toggle(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Flags`
[INFO] [stderr]   --> src/cpu.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | struct Flags {
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/cpu.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn new() -> Flags {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset`
[INFO] [stderr]   --> src/cpu.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn reset(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Registers`
[INFO] [stderr]   --> src/cpu.rs:51:1
[INFO] [stderr]    |
[INFO] [stderr] 51 | struct Registers {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/cpu.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn new() -> Registers {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bc`
[INFO] [stderr]   --> src/cpu.rs:84:5
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn bc(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `de`
[INFO] [stderr]   --> src/cpu.rs:88:5
[INFO] [stderr]    |
[INFO] [stderr] 88 |     fn de(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `hl`
[INFO] [stderr]   --> src/cpu.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 |     fn hl(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_bc`
[INFO] [stderr]   --> src/cpu.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     fn set_bc(&mut self, v: u16) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_de`
[INFO] [stderr]    --> src/cpu.rs:101:5
[INFO] [stderr]     |
[INFO] [stderr] 101 |     fn set_de(&mut self, v: u16) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_hl`
[INFO] [stderr]    --> src/cpu.rs:106:5
[INFO] [stderr]     |
[INFO] [stderr] 106 |     fn set_hl(&mut self, v: u16) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Cpu`
[INFO] [stderr]    --> src/cpu.rs:112:1
[INFO] [stderr]     |
[INFO] [stderr] 112 | pub struct Cpu {
[INFO] [stderr]     | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/cpu.rs:117:5
[INFO] [stderr]     |
[INFO] [stderr] 117 |     pub fn new() -> Cpu {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add8`
[INFO] [stderr]    --> src/cpu.rs:123:5
[INFO] [stderr]     |
[INFO] [stderr] 123 |     fn add8(&mut self, x: u8, y: u8) -> u8 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `next_instuction_byte`
[INFO] [stderr]    --> src/cpu.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn next_instuction_byte(&mut self, mmu: &Mmu) -> u8 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `execute_cycle`
[INFO] [stderr]    --> src/cpu.rs:135:5
[INFO] [stderr]     |
[INFO] [stderr] 135 |     fn execute_cycle(&mut self, mmu: &Mmu) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `execute_instruction`
[INFO] [stderr]    --> src/cpu.rs:140:5
[INFO] [stderr]     |
[INFO] [stderr] 140 |     fn execute_instruction(&mut self, mmu: &Mmu) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WRAM_SIZE`
[INFO] [stderr]  --> src/mmu.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | const WRAM_SIZE: usize = 16000;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Mmu`
[INFO] [stderr]  --> src/mmu.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Mmu {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write_byte`
[INFO] [stderr]  --> src/mmu.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn write_byte(&self, addr: u16) {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write_word`
[INFO] [stderr]   --> src/mmu.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn write_word(&self, addr: u16) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_byte`
[INFO] [stderr]   --> src/mmu.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn read_byte(&self, addr: u16) -> u8 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_word`
[INFO] [stderr]   --> src/mmu.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn read_word(&self, addr: u16) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `"docker" "inspect" "eed4918b35b99cb0a97e1cb44afa176df0fe5d74b16b2cb28770134683e0dea3"`
[INFO] running `"docker" "rm" "-f" "eed4918b35b99cb0a97e1cb44afa176df0fe5d74b16b2cb28770134683e0dea3"`
[INFO] [stdout] eed4918b35b99cb0a97e1cb44afa176df0fe5d74b16b2cb28770134683e0dea3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/RickyBoyd/rust-gbemu:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] b65cfe3bc2e8981dbeab067502daa242b0f5655b0ce0262ec8a0ae8c752da488
[INFO] running `"docker" "start" "-a" "b65cfe3bc2e8981dbeab067502daa242b0f5655b0ce0262ec8a0ae8c752da488"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_gbemu-0d10a2155ba82b5a
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b65cfe3bc2e8981dbeab067502daa242b0f5655b0ce0262ec8a0ae8c752da488"`
[INFO] running `"docker" "rm" "-f" "b65cfe3bc2e8981dbeab067502daa242b0f5655b0ce0262ec8a0ae8c752da488"`
[INFO] [stdout] b65cfe3bc2e8981dbeab067502daa242b0f5655b0ce0262ec8a0ae8c752da488