[INFO] cloning repository JorinTielen/maki8
[INFO] running `"git" "clone" "--bare" "git://github.com/JorinTielen/maki8.git" "work/cache/sources/gh/JorinTielen/maki8"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/JorinTielen/maki8'...
[INFO] running `"git" "clone" "work/cache/sources/gh/JorinTielen/maki8" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/JorinTielen/maki8"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/JorinTielen/maki8'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JorinTielen/maki8" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/JorinTielen/maki8"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/JorinTielen/maki8'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6d02c39a6426ac197f9b12f340b6868c8d99e9d9
[INFO] sha for GitHub repo JorinTielen/maki8: 6d02c39a6426ac197f9b12f340b6868c8d99e9d9
[INFO] validating manifest of JorinTielen/maki8 on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of JorinTielen/maki8 on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing JorinTielen/maki8
[INFO] finished frobbing JorinTielen/maki8
[INFO] frobbed toml for JorinTielen/maki8 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/JorinTielen/maki8/Cargo.toml
[INFO] started frobbing JorinTielen/maki8
[INFO] finished frobbing JorinTielen/maki8
[INFO] frobbed toml for JorinTielen/maki8 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/JorinTielen/maki8/Cargo.toml
[INFO] crate JorinTielen/maki8 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking JorinTielen/maki8 against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-7/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/JorinTielen/maki8:/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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 577cd7046c6a056e153a331f11eac9fe308113f1977567601dadb1d9968de177
[INFO] running `"docker" "start" "-a" "577cd7046c6a056e153a331f11eac9fe308113f1977567601dadb1d9968de177"`
[INFO] [stderr]     Checking maki8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `sdl2::pixels::Color`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use sdl2::pixels::Color;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::pixels::Color`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use sdl2::pixels::Color;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `frame` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let mut frame = 0;
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_frame` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/cpu.rs:84:13
[INFO] [stderr]    |
[INFO] [stderr] 84 |         let y = ((self.op & 0x00F0) >> 4) as usize;
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `frame` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let mut frame = 0;
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_frame` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/cpu.rs:84:13
[INFO] [stderr]    |
[INFO] [stderr] 84 |         let y = ((self.op & 0x00F0) >> 4) as usize;
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cpu.rs:165:21
[INFO] [stderr]     |
[INFO] [stderr] 165 |                 let mut value = rng.gen::<u8>();
[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: method is never used: `start`
[INFO] [stderr]   --> src/chip8.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn start(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `WaitForInput`
[INFO] [stderr]  --> src/cpu.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     WaitForInput,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `gfx`
[INFO] [stderr]   --> src/cpu.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     gfx: [u8; 64 * 32], //Display buffer
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_byte`
[INFO] [stderr]   --> src/ram.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn read_byte(&self, i: usize) -> u8 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_sdl_gl_driver`
[INFO] [stderr]   --> src/main.rs:75:1
[INFO] [stderr]    |
[INFO] [stderr] 75 | fn find_sdl_gl_driver() -> Option<u32> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `V` should have a snake case name
[INFO] [stderr]   --> src/cpu.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     V: [u8; 16], //V Registers
[INFO] [stderr]    |     ^ help: convert the identifier to snake case: `v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `core::num::<impl u8>::wrapping_add` that must be used
[INFO] [stderr]    --> src/cpu.rs:167:17
[INFO] [stderr]     |
[INFO] [stderr] 167 |                 value.wrapping_add(kk); //Should this overflow? probably.
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this returns the result of the operation, without modifying the original
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cpu.rs:165:21
[INFO] [stderr]     |
[INFO] [stderr] 165 |                 let mut value = rng.gen::<u8>();
[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: method is never used: `start`
[INFO] [stderr]   --> src/chip8.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn start(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `WaitForInput`
[INFO] [stderr]  --> src/cpu.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     WaitForInput,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `gfx`
[INFO] [stderr]   --> src/cpu.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     gfx: [u8; 64 * 32], //Display buffer
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_byte`
[INFO] [stderr]   --> src/ram.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn read_byte(&self, i: usize) -> u8 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_sdl_gl_driver`
[INFO] [stderr]   --> src/main.rs:75:1
[INFO] [stderr]    |
[INFO] [stderr] 75 | fn find_sdl_gl_driver() -> Option<u32> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `V` should have a snake case name
[INFO] [stderr]   --> src/cpu.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     V: [u8; 16], //V Registers
[INFO] [stderr]    |     ^ help: convert the identifier to snake case: `v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `core::num::<impl u8>::wrapping_add` that must be used
[INFO] [stderr]    --> src/cpu.rs:167:17
[INFO] [stderr]     |
[INFO] [stderr] 167 |                 value.wrapping_add(kk); //Should this overflow? probably.
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this returns the result of the operation, without modifying the original
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "577cd7046c6a056e153a331f11eac9fe308113f1977567601dadb1d9968de177"`
[INFO] running `"docker" "rm" "-f" "577cd7046c6a056e153a331f11eac9fe308113f1977567601dadb1d9968de177"`
[INFO] [stdout] 577cd7046c6a056e153a331f11eac9fe308113f1977567601dadb1d9968de177