[INFO] updating cached repository TrevorS/rustychip8
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/TrevorS/rustychip8
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/TrevorS/rustychip8" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/TrevorS/rustychip8"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/TrevorS/rustychip8'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/TrevorS/rustychip8" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/TrevorS/rustychip8"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/TrevorS/rustychip8'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 354b7e4d37a2e33b987fca40201057208625015e
[INFO] sha for GitHub repo TrevorS/rustychip8: 354b7e4d37a2e33b987fca40201057208625015e
[INFO] validating manifest of TrevorS/rustychip8 on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of TrevorS/rustychip8 on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing TrevorS/rustychip8
[INFO] finished frobbing TrevorS/rustychip8
[INFO] frobbed toml for TrevorS/rustychip8 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/TrevorS/rustychip8/Cargo.toml
[INFO] started frobbing TrevorS/rustychip8
[INFO] finished frobbing TrevorS/rustychip8
[INFO] frobbed toml for TrevorS/rustychip8 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/TrevorS/rustychip8/Cargo.toml
[INFO] crate TrevorS/rustychip8 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/TrevorS/rustychip8/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking TrevorS/rustychip8 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/TrevorS/rustychip8:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 527a1271d55fb1a3fb68903bb4a9a139b83aec0691e876ef6a050e106fcac7e5
[INFO] running `"docker" "start" "-a" "527a1271d55fb1a3fb68903bb4a9a139b83aec0691e876ef6a050e106fcac7e5"`
[INFO] [stderr]    Compiling sdl2-sys v0.19.0
[INFO] [stderr]     Checking sdl2 v0.20.1
[INFO] [stderr]     Checking rustychip8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/cpu.rs:66:20
[INFO] [stderr]    |
[INFO] [stderr] 66 |             0x1000 ... 0x1FFF => {
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/cpu.rs:69:20
[INFO] [stderr]    |
[INFO] [stderr] 69 |             0x2000 ... 0x2FFF => {
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/cpu.rs:72:20
[INFO] [stderr]    |
[INFO] [stderr] 72 |             0x3000 ... 0x3FFF => {
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/cpu.rs:75:20
[INFO] [stderr]    |
[INFO] [stderr] 75 |             0x4000 ... 0x4FFF => {
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/cpu.rs:78:20
[INFO] [stderr]    |
[INFO] [stderr] 78 |             0x5000 ... 0x5FFF => {
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/cpu.rs:81:20
[INFO] [stderr]    |
[INFO] [stderr] 81 |             0x6000 ... 0x6FFF => {
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/cpu.rs:84:20
[INFO] [stderr]    |
[INFO] [stderr] 84 |             0x7000 ... 0x7FFF => {
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/cpu.rs:87:20
[INFO] [stderr]    |
[INFO] [stderr] 87 |             0x8000 ... 0x8FFF => {
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:121:20
[INFO] [stderr]     |
[INFO] [stderr] 121 |             0x9000 ... 0x9FFF => {
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:124:20
[INFO] [stderr]     |
[INFO] [stderr] 124 |             0xA000 ... 0xAFFF => {
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:127:20
[INFO] [stderr]     |
[INFO] [stderr] 127 |             0xB000 ... 0xBFFF => {
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:130:20
[INFO] [stderr]     |
[INFO] [stderr] 130 |             0xC000 ... 0xCFFF => {
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:133:20
[INFO] [stderr]     |
[INFO] [stderr] 133 |             0xD000 ... 0xDFFF => {
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:136:20
[INFO] [stderr]     |
[INFO] [stderr] 136 |             0xE000 ... 0xEFFF => {
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:149:20
[INFO] [stderr]     |
[INFO] [stderr] 149 |             0xF000 ... 0xFFFF => {
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cpu::Cpu`
[INFO] [stderr]  --> src/term_gfx.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use cpu::Cpu;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/cpu.rs:66:20
[INFO] [stderr]    |
[INFO] [stderr] 66 |             0x1000 ... 0x1FFF => {
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/cpu.rs:69:20
[INFO] [stderr]    |
[INFO] [stderr] 69 |             0x2000 ... 0x2FFF => {
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/cpu.rs:72:20
[INFO] [stderr]    |
[INFO] [stderr] 72 |             0x3000 ... 0x3FFF => {
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/cpu.rs:75:20
[INFO] [stderr]    |
[INFO] [stderr] 75 |             0x4000 ... 0x4FFF => {
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/cpu.rs:78:20
[INFO] [stderr]    |
[INFO] [stderr] 78 |             0x5000 ... 0x5FFF => {
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/cpu.rs:81:20
[INFO] [stderr]    |
[INFO] [stderr] 81 |             0x6000 ... 0x6FFF => {
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/cpu.rs:84:20
[INFO] [stderr]    |
[INFO] [stderr] 84 |             0x7000 ... 0x7FFF => {
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/cpu.rs:87:20
[INFO] [stderr]    |
[INFO] [stderr] 87 |             0x8000 ... 0x8FFF => {
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:121:20
[INFO] [stderr]     |
[INFO] [stderr] 121 |             0x9000 ... 0x9FFF => {
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:124:20
[INFO] [stderr]     |
[INFO] [stderr] 124 |             0xA000 ... 0xAFFF => {
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:127:20
[INFO] [stderr]     |
[INFO] [stderr] 127 |             0xB000 ... 0xBFFF => {
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:130:20
[INFO] [stderr]     |
[INFO] [stderr] 130 |             0xC000 ... 0xCFFF => {
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:133:20
[INFO] [stderr]     |
[INFO] [stderr] 133 |             0xD000 ... 0xDFFF => {
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:136:20
[INFO] [stderr]     |
[INFO] [stderr] 136 |             0xE000 ... 0xEFFF => {
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:149:20
[INFO] [stderr]     |
[INFO] [stderr] 149 |             0xF000 ... 0xFFFF => {
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cpu::Cpu`
[INFO] [stderr]  --> src/term_gfx.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use cpu::Cpu;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sdl`
[INFO] [stderr]   --> src/main.rs:25:19
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let (mut gfx, sdl) = Gfx::new(1);
[INFO] [stderr]    |                   ^^^ help: consider prefixing with an underscore: `_sdl`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `pixel` is assigned to, but never used
[INFO] [stderr]   --> src/gfx.rs:42:17
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let mut pixel: u8;
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_pixel` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `pixel` is never read
[INFO] [stderr]   --> src/gfx.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |                 pixel = &buffer[y * 64 + x] * 255;
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_address`
[INFO] [stderr]    --> src/cpu.rs:583:1
[INFO] [stderr]     |
[INFO] [stderr] 583 | fn print_address(address: u16) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TermGfx`
[INFO] [stderr]  --> src/term_gfx.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct TermGfx { }
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/term_gfx.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pub fn new() -> TermGfx {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `composite`
[INFO] [stderr]   --> src/term_gfx.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn composite(&self, buffer: Vec<u8>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sdl`
[INFO] [stderr]   --> src/main.rs:25:19
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let (mut gfx, sdl) = Gfx::new(1);
[INFO] [stderr]    |                   ^^^ help: consider prefixing with an underscore: `_sdl`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `pixel` is assigned to, but never used
[INFO] [stderr]   --> src/gfx.rs:42:17
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let mut pixel: u8;
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_pixel` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `pixel` is never read
[INFO] [stderr]   --> src/gfx.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |                 pixel = &buffer[y * 64 + x] * 255;
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/gfx.rs:49:17
[INFO] [stderr]    |
[INFO] [stderr] 49 | /                 self.renderer.fill_rect(
[INFO] [stderr] 50 | |                     Rect::new(x as i32, y as i32, self.scale as u32, self.scale as u32));
[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: function is never used: `print_address`
[INFO] [stderr]    --> src/cpu.rs:583:1
[INFO] [stderr]     |
[INFO] [stderr] 583 | fn print_address(address: u16) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TermGfx`
[INFO] [stderr]  --> src/term_gfx.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct TermGfx { }
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/term_gfx.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pub fn new() -> TermGfx {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `composite`
[INFO] [stderr]   --> src/term_gfx.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn composite(&self, buffer: Vec<u8>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/gfx.rs:49:17
[INFO] [stderr]    |
[INFO] [stderr] 49 | /                 self.renderer.fill_rect(
[INFO] [stderr] 50 | |                     Rect::new(x as i32, y as i32, self.scale as u32, self.scale as u32));
[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 5.06s
[INFO] running `"docker" "inspect" "527a1271d55fb1a3fb68903bb4a9a139b83aec0691e876ef6a050e106fcac7e5"`
[INFO] running `"docker" "rm" "-f" "527a1271d55fb1a3fb68903bb4a9a139b83aec0691e876ef6a050e106fcac7e5"`
[INFO] [stdout] 527a1271d55fb1a3fb68903bb4a9a139b83aec0691e876ef6a050e106fcac7e5