[INFO] updating cached repository chivequiachon/rust-chip8
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/chivequiachon/rust-chip8
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/chivequiachon/rust-chip8" "work/ex/beta-1.38-1/sources/1.37.0/gh/chivequiachon/rust-chip8"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/chivequiachon/rust-chip8'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/chivequiachon/rust-chip8" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chivequiachon/rust-chip8"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chivequiachon/rust-chip8'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 92e203e4b96de9ac1c20a945bb3d1f173e5d8bed
[INFO] sha for GitHub repo chivequiachon/rust-chip8: 92e203e4b96de9ac1c20a945bb3d1f173e5d8bed
[INFO] validating manifest of chivequiachon/rust-chip8 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of chivequiachon/rust-chip8 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing chivequiachon/rust-chip8
[INFO] finished frobbing chivequiachon/rust-chip8
[INFO] frobbed toml for chivequiachon/rust-chip8 written to work/ex/beta-1.38-1/sources/1.37.0/gh/chivequiachon/rust-chip8/Cargo.toml
[INFO] started frobbing chivequiachon/rust-chip8
[INFO] finished frobbing chivequiachon/rust-chip8
[INFO] frobbed toml for chivequiachon/rust-chip8 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chivequiachon/rust-chip8/Cargo.toml
[INFO] crate chivequiachon/rust-chip8 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing chivequiachon/rust-chip8 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/chivequiachon/rust-chip8:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 5694536a360d2219ee9d302609af9dc609a94284d3193f8541e66783528b7217
[INFO] running `"docker" "start" "-a" "5694536a360d2219ee9d302609af9dc609a94284d3193f8541e66783528b7217"`
[INFO] [stderr]    Compiling chip8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0425]: cannot find value `index` in this scope
[INFO] [stderr]   --> src/display.rs:35:38
[INFO] [stderr]    |
[INFO] [stderr] 35 |             if prev_value == 1 && self.screen[index] == 0 {
[INFO] [stderr]    |                                               ^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `f` in this scope
[INFO] [stderr]   --> src/bus.rs:74:10
[INFO] [stderr]    |
[INFO] [stderr] 74 |         write!(f, " Delay timer: {:?}", self.delay_timer)
[INFO] [stderr]    |                ^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/cpu.rs:195:28
[INFO] [stderr]     |
[INFO] [stderr] 195 |                 self.pc += (v0 + nnn);
[INFO] [stderr]     |                            ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/cpu.rs:255:35
[INFO] [stderr]     |
[INFO] [stderr] 255 |                         self.i += (self.read_reg_vx(x) as u16);
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     Ok(())
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `debug_draw_byte` found for type `&mut bus::Bus` in the current scope
[INFO] [stderr]    --> src/cpu.rs:315:20
[INFO] [stderr]     |
[INFO] [stderr] 315 |             if bus.debug_draw_byte(b, x, y + sprite_y) {
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `screen` found for type `&mut display::Display` in the current scope
[INFO] [stderr]   --> src/display.rs:32:26
[INFO] [stderr]    |
[INFO] [stderr] 32 |             let prev_value = self.screen(idx);
[INFO] [stderr]    |                                   ^^^^^^----- help: remove the arguments
[INFO] [stderr]    |                                   |
[INFO] [stderr]    |                                   field, not a method
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `set_delay_timer_set_time` on type `&mut bus::Bus`
[INFO] [stderr]   --> src/bus.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 |         self.set_delay_timer_set_time = time::Instant::now();
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `set_delay_timer_set_time` on type `&bus::Bus`
[INFO] [stderr]   --> src/bus.rs:53:42
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let diff = time::Instant::now() - self.set_delay_timer_set_time;
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `get_display_buffer` found for type `keyboard::Keyboard` in the current scope
[INFO] [stderr]   --> src/bus.rs:68:17
[INFO] [stderr]    |
[INFO] [stderr] 68 |         self.keyboard.get_display_buffer()
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/keyboard.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | pub struct Keyboard {
[INFO] [stderr]    | ------------------- method `get_display_buffer` not found for this
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0425, E0599, E0609.
[INFO] [stderr] For more information about an error, try `rustc --explain E0425`.
[INFO] [stderr] error: Could not compile `chip8`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5694536a360d2219ee9d302609af9dc609a94284d3193f8541e66783528b7217"`
[INFO] running `"docker" "rm" "-f" "5694536a360d2219ee9d302609af9dc609a94284d3193f8541e66783528b7217"`
[INFO] [stdout] 5694536a360d2219ee9d302609af9dc609a94284d3193f8541e66783528b7217