[INFO] updating cached repository juancgalan/rust-chip8
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/juancgalan/rust-chip8
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/juancgalan/rust-chip8" "work/ex/beta-1.38-1/sources/1.37.0/gh/juancgalan/rust-chip8"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/juancgalan/rust-chip8'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/juancgalan/rust-chip8" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/juancgalan/rust-chip8"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/juancgalan/rust-chip8'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 73d8bd79744aeb52f2adad1d8e85a84ee5ca8ecf
[INFO] sha for GitHub repo juancgalan/rust-chip8: 73d8bd79744aeb52f2adad1d8e85a84ee5ca8ecf
[INFO] validating manifest of juancgalan/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 juancgalan/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 juancgalan/rust-chip8
[INFO] finished frobbing juancgalan/rust-chip8
[INFO] frobbed toml for juancgalan/rust-chip8 written to work/ex/beta-1.38-1/sources/1.37.0/gh/juancgalan/rust-chip8/Cargo.toml
[INFO] started frobbing juancgalan/rust-chip8
[INFO] finished frobbing juancgalan/rust-chip8
[INFO] frobbed toml for juancgalan/rust-chip8 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/juancgalan/rust-chip8/Cargo.toml
[INFO] crate juancgalan/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 juancgalan/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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/juancgalan/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] 586f2f5835db6b735f756ef55b19a7026477bd81931ae4aa598c2f1c3ebe8a65
[INFO] running `"docker" "start" "-a" "586f2f5835db6b735f756ef55b19a7026477bd81931ae4aa598c2f1c3ebe8a65"`
[INFO] [stderr]    Compiling chip8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]   --> src/vm.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let offset = address.unwrap_or(0x200);
[INFO] [stderr]    |             ^^^^^^ help: consider prefixing with an underscore: `_offset`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `opcode`
[INFO] [stderr]   --> src/vm.rs:37:26
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn before(&mut self, opcode: u16, addr: u16) { unimplemented!(); }
[INFO] [stderr]    |                          ^^^^^^ help: consider prefixing with an underscore: `_opcode`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/vm.rs:37:39
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn before(&mut self, opcode: u16, addr: u16) { unimplemented!(); }
[INFO] [stderr]    |                                       ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `opcode`
[INFO] [stderr]   --> src/vm.rs:38:27
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn unknown(&mut self, opcode: u16, addr: u16) { unimplemented!(); }
[INFO] [stderr]    |                           ^^^^^^ help: consider prefixing with an underscore: `_opcode`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/vm.rs:38:40
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn unknown(&mut self, opcode: u16, addr: u16) { unimplemented!(); }
[INFO] [stderr]    |                                        ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/vm.rs:41:23
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn jmp(&mut self, address: u16) { unimplemented!(); }
[INFO] [stderr]    |                       ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/vm.rs:42:24
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn call(&mut self, address: u16) { unimplemented!(); }
[INFO] [stderr]    |                        ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:43:23
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn jeq(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:43:31
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn jeq(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:44:24
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn jneq(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:44:32
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn jneq(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:45:24
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn jeqr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:45:32
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn jeqr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:46:23
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn set(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:46:31
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn set(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:47:23
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn add(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:47:31
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn add(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:48:24
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn setr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:48:32
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn setr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:49:22
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn or(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                      ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:49:30
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn or(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                              ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:50:23
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn and(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:50:31
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn and(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:51:23
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn xor(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:51:31
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn xor(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:52:24
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn addr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:52:32
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn addr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:53:23
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn sub(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:53:31
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn sub(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:54:23
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn shr(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:55:24
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn subb(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:55:32
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn subb(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:56:23
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn shl(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:57:25
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn jneqr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                         ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:57:33
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn jneqr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                                 ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:58:24
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn seti(&mut self, value: u16) { unimplemented!(); }
[INFO] [stderr]    |                        ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/vm.rs:59:25
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn jmpv0(&mut self, address: u16) { unimplemented!(); }
[INFO] [stderr]    |                         ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:60:24
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn rand(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:60:32
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn rand(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:61:24
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn draw(&mut self, vr: u8, vy: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:61:32
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn draw(&mut self, vr: u8, vy: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:61:40
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn draw(&mut self, vr: u8, vy: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                                        ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:62:24
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn jkey(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:63:25
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn jnkey(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                         ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:64:28
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn getdelay(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                            ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:65:27
[INFO] [stderr]    |
[INFO] [stderr] 65 |     fn waitkey(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                           ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:66:28
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn setdelay(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                            ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:67:28
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn setsound(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                            ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:68:24
[INFO] [stderr]    |
[INFO] [stderr] 68 |     fn addi(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:69:27
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn spritei(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                           ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:70:23
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn bcd(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:71:24
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn push(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:72:23
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn pop(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]    --> src/disassembly.rs:140:32
[INFO] [stderr]     |
[INFO] [stderr] 140 |     fn draw(&mut self, vr: u8, vy: u8, value: u8) {
[INFO] [stderr]     |                                ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `CPU`
[INFO] [stderr]  --> src/vm.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct CPU {
[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/vm.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn new() -> CPU {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `load_program`
[INFO] [stderr]   --> src/vm.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn load_program(&mut self, program: &[u8], address: Option<u16>) -> &CPU {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `"docker" "inspect" "586f2f5835db6b735f756ef55b19a7026477bd81931ae4aa598c2f1c3ebe8a65"`
[INFO] running `"docker" "rm" "-f" "586f2f5835db6b735f756ef55b19a7026477bd81931ae4aa598c2f1c3ebe8a65"`
[INFO] [stdout] 586f2f5835db6b735f756ef55b19a7026477bd81931ae4aa598c2f1c3ebe8a65
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/juancgalan/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 250823dac2885f614499593b5ab4d8363a794c5ffb2a8a393fc26b80b26515d3
[INFO] running `"docker" "start" "-a" "250823dac2885f614499593b5ab4d8363a794c5ffb2a8a393fc26b80b26515d3"`
[INFO] [stderr]    Compiling chip8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]   --> src/vm.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let offset = address.unwrap_or(0x200);
[INFO] [stderr]    |             ^^^^^^ help: consider prefixing with an underscore: `_offset`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `opcode`
[INFO] [stderr]   --> src/vm.rs:37:26
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn before(&mut self, opcode: u16, addr: u16) { unimplemented!(); }
[INFO] [stderr]    |                          ^^^^^^ help: consider prefixing with an underscore: `_opcode`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/vm.rs:37:39
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn before(&mut self, opcode: u16, addr: u16) { unimplemented!(); }
[INFO] [stderr]    |                                       ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `opcode`
[INFO] [stderr]   --> src/vm.rs:38:27
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn unknown(&mut self, opcode: u16, addr: u16) { unimplemented!(); }
[INFO] [stderr]    |                           ^^^^^^ help: consider prefixing with an underscore: `_opcode`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/vm.rs:38:40
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn unknown(&mut self, opcode: u16, addr: u16) { unimplemented!(); }
[INFO] [stderr]    |                                        ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/vm.rs:41:23
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn jmp(&mut self, address: u16) { unimplemented!(); }
[INFO] [stderr]    |                       ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/vm.rs:42:24
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn call(&mut self, address: u16) { unimplemented!(); }
[INFO] [stderr]    |                        ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:43:23
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn jeq(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:43:31
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn jeq(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:44:24
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn jneq(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:44:32
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn jneq(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:45:24
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn jeqr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:45:32
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn jeqr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:46:23
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn set(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:46:31
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn set(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:47:23
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn add(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:47:31
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn add(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:48:24
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn setr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:48:32
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn setr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:49:22
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn or(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                      ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:49:30
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn or(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                              ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:50:23
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn and(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:50:31
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn and(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:51:23
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn xor(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:51:31
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn xor(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:52:24
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn addr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:52:32
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn addr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:53:23
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn sub(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:53:31
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn sub(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                               ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:54:23
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn shr(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:55:24
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn subb(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:55:32
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn subb(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:56:23
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn shl(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:57:25
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn jneqr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                         ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:57:33
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn jneqr(&mut self, vr: u8, vy: u8) { unimplemented!(); }
[INFO] [stderr]    |                                 ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:58:24
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn seti(&mut self, value: u16) { unimplemented!(); }
[INFO] [stderr]    |                        ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/vm.rs:59:25
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn jmpv0(&mut self, address: u16) { unimplemented!(); }
[INFO] [stderr]    |                         ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:60:24
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn rand(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:60:32
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn rand(&mut self, vr: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:61:24
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn draw(&mut self, vr: u8, vy: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]   --> src/vm.rs:61:32
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn draw(&mut self, vr: u8, vy: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                                ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/vm.rs:61:40
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn draw(&mut self, vr: u8, vy: u8, value: u8) { unimplemented!(); }
[INFO] [stderr]    |                                        ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:62:24
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn jkey(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:63:25
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn jnkey(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                         ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:64:28
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn getdelay(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                            ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:65:27
[INFO] [stderr]    |
[INFO] [stderr] 65 |     fn waitkey(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                           ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:66:28
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn setdelay(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                            ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:67:28
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn setsound(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                            ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:68:24
[INFO] [stderr]    |
[INFO] [stderr] 68 |     fn addi(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:69:27
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn spritei(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                           ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:70:23
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn bcd(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:71:24
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn push(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                        ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vr`
[INFO] [stderr]   --> src/vm.rs:72:23
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn pop(&mut self, vr: u8) { unimplemented!(); }
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_vr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vy`
[INFO] [stderr]    --> src/disassembly.rs:140:32
[INFO] [stderr]     |
[INFO] [stderr] 140 |     fn draw(&mut self, vr: u8, vy: u8, value: u8) {
[INFO] [stderr]     |                                ^^ help: consider prefixing with an underscore: `_vy`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `CPU`
[INFO] [stderr]  --> src/vm.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct CPU {
[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/vm.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn new() -> CPU {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `load_program`
[INFO] [stderr]   --> src/vm.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn load_program(&mut self, program: &[u8], address: Option<u16>) -> &CPU {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "250823dac2885f614499593b5ab4d8363a794c5ffb2a8a393fc26b80b26515d3"`
[INFO] running `"docker" "rm" "-f" "250823dac2885f614499593b5ab4d8363a794c5ffb2a8a393fc26b80b26515d3"`
[INFO] [stdout] 250823dac2885f614499593b5ab4d8363a794c5ffb2a8a393fc26b80b26515d3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/juancgalan/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" "test" "--frozen"`
[INFO] [stdout] 07f61648667f6d71957e88c531717da1b9bd0b94a57fd3e082a59d18974a0000
[INFO] running `"docker" "start" "-a" "07f61648667f6d71957e88c531717da1b9bd0b94a57fd3e082a59d18974a0000"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/chip8-4a7b8d8ba67cde9c
[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" "07f61648667f6d71957e88c531717da1b9bd0b94a57fd3e082a59d18974a0000"`
[INFO] running `"docker" "rm" "-f" "07f61648667f6d71957e88c531717da1b9bd0b94a57fd3e082a59d18974a0000"`
[INFO] [stdout] 07f61648667f6d71957e88c531717da1b9bd0b94a57fd3e082a59d18974a0000