Dec 17 22:30:13.485 INFO checking jbyte/chip8 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 22:30:13.485 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/jbyte/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=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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 22:30:13.932 INFO [stdout] 455b43051c76c761099c4f14db5e6fbf29ebbc2e3349844772af7912a4337f11
Dec 17 22:30:13.934 INFO running `"docker" "start" "-a" "455b43051c76c761099c4f14db5e6fbf29ebbc2e3349844772af7912a4337f11"`
Dec 17 22:30:15.656 INFO [stderr]     Checking nom v2.2.0
Dec 17 22:30:17.744 INFO [stderr]     Checking chip8 v0.1.0 (/opt/crater/workdir)
Dec 17 22:30:18.036 INFO [stderr] warning: unused import: `std::borrow::Cow`
Dec 17 22:30:18.036 INFO [stderr]  --> src/debugger/mod.rs:5:5
Dec 17 22:30:18.036 INFO [stderr]   |
Dec 17 22:30:18.036 INFO [stderr] 5 | use std::borrow::Cow;
Dec 17 22:30:18.036 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 17 22:30:18.036 INFO [stderr]   |
Dec 17 22:30:18.036 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 22:30:18.036 INFO [stderr] 
Dec 17 22:30:18.048 INFO [stderr] warning: unused import: `std::borrow::Cow`
Dec 17 22:30:18.048 INFO [stderr]  --> src/debugger/mod.rs:5:5
Dec 17 22:30:18.048 INFO [stderr]   |
Dec 17 22:30:18.048 INFO [stderr] 5 | use std::borrow::Cow;
Dec 17 22:30:18.048 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 17 22:30:18.049 INFO [stderr]   |
Dec 17 22:30:18.049 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 22:30:18.049 INFO [stderr] 
Dec 17 22:30:18.288 INFO [stderr] warning: constant item is never used: `INTERPRETER_START`
Dec 17 22:30:18.288 INFO [stderr]  --> src/cpu/cpu.rs:5:1
Dec 17 22:30:18.288 INFO [stderr]   |
Dec 17 22:30:18.288 INFO [stderr] 5 | const INTERPRETER_START: u32 = 0x000;
Dec 17 22:30:18.288 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.288 INFO [stderr]   |
Dec 17 22:30:18.288 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 22:30:18.288 INFO [stderr] 
Dec 17 22:30:18.288 INFO [stderr] warning: constant item is never used: `INTERPRETER_END`
Dec 17 22:30:18.288 INFO [stderr]  --> src/cpu/cpu.rs:6:1
Dec 17 22:30:18.288 INFO [stderr]   |
Dec 17 22:30:18.288 INFO [stderr] 6 | const INTERPRETER_END: u32 = 0x1FF;
Dec 17 22:30:18.288 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.288 INFO [stderr] 
Dec 17 22:30:18.288 INFO [stderr] warning: constant item is never used: `INTERPRETER_LENGTH`
Dec 17 22:30:18.288 INFO [stderr]  --> src/cpu/cpu.rs:7:1
Dec 17 22:30:18.288 INFO [stderr]   |
Dec 17 22:30:18.288 INFO [stderr] 7 | const INTERPRETER_LENGTH: u32 = INTERPRETER_END - INTERPRETER_START;
Dec 17 22:30:18.289 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.289 INFO [stderr] 
Dec 17 22:30:18.289 INFO [stderr] warning: constant item is never used: `DATA_END`
Dec 17 22:30:18.289 INFO [stderr]   --> src/cpu/cpu.rs:14:1
Dec 17 22:30:18.289 INFO [stderr]    |
Dec 17 22:30:18.289 INFO [stderr] 14 | const DATA_END: usize = 0xFFF;
Dec 17 22:30:18.289 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.289 INFO [stderr] 
Dec 17 22:30:18.289 INFO [stderr] warning: constant item is never used: `DATA_LENGTH`
Dec 17 22:30:18.289 INFO [stderr]   --> src/cpu/cpu.rs:15:1
Dec 17 22:30:18.289 INFO [stderr]    |
Dec 17 22:30:18.289 INFO [stderr] 15 | const DATA_LENGTH: usize = DATA_END - DATA_START;
Dec 17 22:30:18.289 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.289 INFO [stderr] 
Dec 17 22:30:18.292 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 22:30:18.292 INFO [stderr]    --> src/cpu/cpu.rs:102:9
Dec 17 22:30:18.292 INFO [stderr]     |
Dec 17 22:30:18.292 INFO [stderr] 102 |         stdin().read(&mut c);
Dec 17 22:30:18.292 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.292 INFO [stderr]     |
Dec 17 22:30:18.292 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 17 22:30:18.292 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 22:30:18.292 INFO [stderr] 
Dec 17 22:30:18.413 INFO [stderr] warning: constant item is never used: `INTERPRETER_START`
Dec 17 22:30:18.413 INFO [stderr]  --> src/cpu/cpu.rs:5:1
Dec 17 22:30:18.413 INFO [stderr]   |
Dec 17 22:30:18.413 INFO [stderr] 5 | const INTERPRETER_START: u32 = 0x000;
Dec 17 22:30:18.413 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.413 INFO [stderr]   |
Dec 17 22:30:18.413 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 22:30:18.413 INFO [stderr] 
Dec 17 22:30:18.413 INFO [stderr] warning: constant item is never used: `INTERPRETER_END`
Dec 17 22:30:18.413 INFO [stderr]  --> src/cpu/cpu.rs:6:1
Dec 17 22:30:18.413 INFO [stderr]   |
Dec 17 22:30:18.413 INFO [stderr] 6 | const INTERPRETER_END: u32 = 0x1FF;
Dec 17 22:30:18.413 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.413 INFO [stderr] 
Dec 17 22:30:18.413 INFO [stderr] warning: constant item is never used: `INTERPRETER_LENGTH`
Dec 17 22:30:18.413 INFO [stderr]  --> src/cpu/cpu.rs:7:1
Dec 17 22:30:18.413 INFO [stderr]   |
Dec 17 22:30:18.413 INFO [stderr] 7 | const INTERPRETER_LENGTH: u32 = INTERPRETER_END - INTERPRETER_START;
Dec 17 22:30:18.413 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.413 INFO [stderr] 
Dec 17 22:30:18.413 INFO [stderr] warning: constant item is never used: `DATA_END`
Dec 17 22:30:18.413 INFO [stderr]   --> src/cpu/cpu.rs:14:1
Dec 17 22:30:18.413 INFO [stderr]    |
Dec 17 22:30:18.413 INFO [stderr] 14 | const DATA_END: usize = 0xFFF;
Dec 17 22:30:18.413 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.413 INFO [stderr] 
Dec 17 22:30:18.413 INFO [stderr] warning: constant item is never used: `DATA_LENGTH`
Dec 17 22:30:18.413 INFO [stderr]   --> src/cpu/cpu.rs:15:1
Dec 17 22:30:18.414 INFO [stderr]    |
Dec 17 22:30:18.414 INFO [stderr] 15 | const DATA_LENGTH: usize = DATA_END - DATA_START;
Dec 17 22:30:18.414 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.414 INFO [stderr] 
Dec 17 22:30:18.415 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 22:30:18.415 INFO [stderr]    --> src/cpu/cpu.rs:102:9
Dec 17 22:30:18.415 INFO [stderr]     |
Dec 17 22:30:18.415 INFO [stderr] 102 |         stdin().read(&mut c);
Dec 17 22:30:18.415 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.415 INFO [stderr]     |
Dec 17 22:30:18.415 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 17 22:30:18.415 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 22:30:18.415 INFO [stderr] 
Dec 17 22:30:18.482 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.86s
Dec 17 22:30:19.187 INFO running `"docker" "inspect" "455b43051c76c761099c4f14db5e6fbf29ebbc2e3349844772af7912a4337f11"`
Dec 17 22:30:19.408 INFO running `"docker" "rm" "-f" "455b43051c76c761099c4f14db5e6fbf29ebbc2e3349844772af7912a4337f11"`
Dec 17 22:30:19.713 INFO [stdout] 455b43051c76c761099c4f14db5e6fbf29ebbc2e3349844772af7912a4337f11