[INFO] updating cached repository douglascorrea/gbrustemu
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/douglascorrea/gbrustemu
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/douglascorrea/gbrustemu" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/douglascorrea/gbrustemu"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/douglascorrea/gbrustemu'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/douglascorrea/gbrustemu" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/douglascorrea/gbrustemu"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/douglascorrea/gbrustemu'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7604ed03544f1c434b38e4953835e0f1de9acc9c
[INFO] sha for GitHub repo douglascorrea/gbrustemu: 7604ed03544f1c434b38e4953835e0f1de9acc9c
[INFO] validating manifest of douglascorrea/gbrustemu on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of douglascorrea/gbrustemu on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing douglascorrea/gbrustemu
[INFO] finished frobbing douglascorrea/gbrustemu
[INFO] frobbed toml for douglascorrea/gbrustemu written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/douglascorrea/gbrustemu/Cargo.toml
[INFO] started frobbing douglascorrea/gbrustemu
[INFO] finished frobbing douglascorrea/gbrustemu
[INFO] frobbed toml for douglascorrea/gbrustemu written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/douglascorrea/gbrustemu/Cargo.toml
[INFO] crate douglascorrea/gbrustemu already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking douglascorrea/gbrustemu against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-3/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/douglascorrea/gbrustemu:/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e33c9878053efa94795338a47c229ecba62a5ba17e69c875560a26dbed69f773
[INFO] running `"docker" "start" "-a" "e33c9878053efa94795338a47c229ecba62a5ba17e69c875560a26dbed69f773"`
[INFO] [stderr]     Checking gbrustemu v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `cb_d16`
[INFO] [stderr]    --> src/cpu.rs:278:13
[INFO] [stderr]     |
[INFO] [stderr] 278 |         let cb_d16: u16 = (cb_n2 << 8) | cb_n1;
[INFO] [stderr]     |             ^^^^^^ help: consider prefixing with an underscore: `_cb_d16`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cb_d16`
[INFO] [stderr]    --> src/cpu.rs:278:13
[INFO] [stderr]     |
[INFO] [stderr] 278 |         let cb_d16: u16 = (cb_n2 << 8) | cb_n1;
[INFO] [stderr]     |             ^^^^^^ help: consider prefixing with an underscore: `_cb_d16`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `de`
[INFO] [stderr]    --> src/cpu.rs:639:21
[INFO] [stderr]     |
[INFO] [stderr] 639 |                 let de: u16 = d16 | (self.e as u16);
[INFO] [stderr]     |                     ^^ help: consider prefixing with an underscore: `_de`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `de`
[INFO] [stderr]    --> src/cpu.rs:639:21
[INFO] [stderr]     |
[INFO] [stderr] 639 |                 let de: u16 = d16 | (self.e as u16);
[INFO] [stderr]     |                     ^^ help: consider prefixing with an underscore: `_de`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cpu.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let mut cpu = CPU {
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cpu.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let mut cpu = CPU {
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/mmu.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |         let mut mem = MMU { ram: [0; 65_536] };
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_n_flag`
[INFO] [stderr]   --> src/cpu.rs:99:5
[INFO] [stderr]    |
[INFO] [stderr] 99 |     fn set_n_flag(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `calc_half_carry_on_u16_sub`
[INFO] [stderr]    --> src/cpu.rs:152:5
[INFO] [stderr]     |
[INFO] [stderr] 152 |     fn calc_half_carry_on_u16_sub(&self, value_a: u16, value_b: u16) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WIDTH`
[INFO] [stderr]  --> src/ppu.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | const WIDTH: usize = 256;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `HEIGHT`
[INFO] [stderr]  --> src/ppu.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const HEIGHT: usize = 256;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/mmu.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |         let mut mem = MMU { ram: [0; 65_536] };
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_n_flag`
[INFO] [stderr]   --> src/cpu.rs:99:5
[INFO] [stderr]    |
[INFO] [stderr] 99 |     fn set_n_flag(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `calc_half_carry_on_u16_sub`
[INFO] [stderr]    --> src/cpu.rs:152:5
[INFO] [stderr]     |
[INFO] [stderr] 152 |     fn calc_half_carry_on_u16_sub(&self, value_a: u16, value_b: u16) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WIDTH`
[INFO] [stderr]  --> src/ppu.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | const WIDTH: usize = 256;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `HEIGHT`
[INFO] [stderr]  --> src/ppu.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const HEIGHT: usize = 256;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     f.read_to_end(&mut rom_file);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     f.read_to_end(&mut rom_file);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `"docker" "inspect" "e33c9878053efa94795338a47c229ecba62a5ba17e69c875560a26dbed69f773"`
[INFO] running `"docker" "rm" "-f" "e33c9878053efa94795338a47c229ecba62a5ba17e69c875560a26dbed69f773"`
[INFO] [stdout] e33c9878053efa94795338a47c229ecba62a5ba17e69c875560a26dbed69f773