Dec 17 22:30:13.909 INFO checking jbyte/chip8 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 22:30:13.909 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 22:30:14.433 INFO [stdout] aa7a15c75a10cdf6c343a7bfef2dcf654103773378133ff17ddede2769514181
Dec 17 22:30:14.440 INFO running `"docker" "start" "-a" "aa7a15c75a10cdf6c343a7bfef2dcf654103773378133ff17ddede2769514181"`
Dec 17 22:30:16.231 INFO [stderr]     Checking nom v2.2.0
Dec 17 22:30:18.222 INFO [stderr]     Checking chip8 v0.1.0 (/opt/crater/workdir)
Dec 17 22:30:18.604 INFO [stderr] warning: unused import: `std::borrow::Cow`
Dec 17 22:30:18.604 INFO [stderr]  --> src/debugger/mod.rs:5:5
Dec 17 22:30:18.604 INFO [stderr]   |
Dec 17 22:30:18.604 INFO [stderr] 5 | use std::borrow::Cow;
Dec 17 22:30:18.604 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 17 22:30:18.604 INFO [stderr]   |
Dec 17 22:30:18.604 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 22:30:18.604 INFO [stderr] 
Dec 17 22:30:18.631 INFO [stderr] warning: unused import: `std::borrow::Cow`
Dec 17 22:30:18.631 INFO [stderr]  --> src/debugger/mod.rs:5:5
Dec 17 22:30:18.631 INFO [stderr]   |
Dec 17 22:30:18.631 INFO [stderr] 5 | use std::borrow::Cow;
Dec 17 22:30:18.631 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 17 22:30:18.631 INFO [stderr]   |
Dec 17 22:30:18.631 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 22:30:18.631 INFO [stderr] 
Dec 17 22:30:18.888 INFO [stderr] warning: constant item is never used: `INTERPRETER_START`
Dec 17 22:30:18.888 INFO [stderr]  --> src/cpu/cpu.rs:5:1
Dec 17 22:30:18.888 INFO [stderr]   |
Dec 17 22:30:18.888 INFO [stderr] 5 | const INTERPRETER_START: u32 = 0x000;
Dec 17 22:30:18.888 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.888 INFO [stderr]   |
Dec 17 22:30:18.888 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 22:30:18.888 INFO [stderr] 
Dec 17 22:30:18.888 INFO [stderr] warning: constant item is never used: `INTERPRETER_END`
Dec 17 22:30:18.888 INFO [stderr]  --> src/cpu/cpu.rs:6:1
Dec 17 22:30:18.888 INFO [stderr]   |
Dec 17 22:30:18.888 INFO [stderr] 6 | const INTERPRETER_END: u32 = 0x1FF;
Dec 17 22:30:18.888 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.888 INFO [stderr] 
Dec 17 22:30:18.888 INFO [stderr] warning: constant item is never used: `INTERPRETER_LENGTH`
Dec 17 22:30:18.888 INFO [stderr]  --> src/cpu/cpu.rs:7:1
Dec 17 22:30:18.888 INFO [stderr]   |
Dec 17 22:30:18.888 INFO [stderr] 7 | const INTERPRETER_LENGTH: u32 = INTERPRETER_END - INTERPRETER_START;
Dec 17 22:30:18.888 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.888 INFO [stderr] 
Dec 17 22:30:18.888 INFO [stderr] warning: constant item is never used: `DATA_END`
Dec 17 22:30:18.888 INFO [stderr]   --> src/cpu/cpu.rs:14:1
Dec 17 22:30:18.888 INFO [stderr]    |
Dec 17 22:30:18.888 INFO [stderr] 14 | const DATA_END: usize = 0xFFF;
Dec 17 22:30:18.888 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.888 INFO [stderr] 
Dec 17 22:30:18.888 INFO [stderr] warning: constant item is never used: `DATA_LENGTH`
Dec 17 22:30:18.888 INFO [stderr]   --> src/cpu/cpu.rs:15:1
Dec 17 22:30:18.888 INFO [stderr]    |
Dec 17 22:30:18.888 INFO [stderr] 15 | const DATA_LENGTH: usize = DATA_END - DATA_START;
Dec 17 22:30:18.888 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.888 INFO [stderr] 
Dec 17 22:30:18.892 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 22:30:18.892 INFO [stderr]    --> src/cpu/cpu.rs:102:9
Dec 17 22:30:18.892 INFO [stderr]     |
Dec 17 22:30:18.892 INFO [stderr] 102 |         stdin().read(&mut c);
Dec 17 22:30:18.892 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.892 INFO [stderr]     |
Dec 17 22:30:18.892 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 17 22:30:18.892 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 22:30:18.892 INFO [stderr] 
Dec 17 22:30:18.904 INFO [stderr] warning: constant item is never used: `INTERPRETER_START`
Dec 17 22:30:18.904 INFO [stderr]  --> src/cpu/cpu.rs:5:1
Dec 17 22:30:18.904 INFO [stderr]   |
Dec 17 22:30:18.904 INFO [stderr] 5 | const INTERPRETER_START: u32 = 0x000;
Dec 17 22:30:18.904 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.904 INFO [stderr]   |
Dec 17 22:30:18.904 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 22:30:18.904 INFO [stderr] 
Dec 17 22:30:18.904 INFO [stderr] warning: constant item is never used: `INTERPRETER_END`
Dec 17 22:30:18.904 INFO [stderr]  --> src/cpu/cpu.rs:6:1
Dec 17 22:30:18.904 INFO [stderr]   |
Dec 17 22:30:18.904 INFO [stderr] 6 | const INTERPRETER_END: u32 = 0x1FF;
Dec 17 22:30:18.904 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.904 INFO [stderr] 
Dec 17 22:30:18.904 INFO [stderr] warning: constant item is never used: `INTERPRETER_LENGTH`
Dec 17 22:30:18.905 INFO [stderr]  --> src/cpu/cpu.rs:7:1
Dec 17 22:30:18.905 INFO [stderr]   |
Dec 17 22:30:18.905 INFO [stderr] 7 | const INTERPRETER_LENGTH: u32 = INTERPRETER_END - INTERPRETER_START;
Dec 17 22:30:18.905 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.905 INFO [stderr] 
Dec 17 22:30:18.905 INFO [stderr] warning: constant item is never used: `DATA_END`
Dec 17 22:30:18.905 INFO [stderr]   --> src/cpu/cpu.rs:14:1
Dec 17 22:30:18.905 INFO [stderr]    |
Dec 17 22:30:18.905 INFO [stderr] 14 | const DATA_END: usize = 0xFFF;
Dec 17 22:30:18.905 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.905 INFO [stderr] 
Dec 17 22:30:18.905 INFO [stderr] warning: constant item is never used: `DATA_LENGTH`
Dec 17 22:30:18.905 INFO [stderr]   --> src/cpu/cpu.rs:15:1
Dec 17 22:30:18.905 INFO [stderr]    |
Dec 17 22:30:18.905 INFO [stderr] 15 | const DATA_LENGTH: usize = DATA_END - DATA_START;
Dec 17 22:30:18.905 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.905 INFO [stderr] 
Dec 17 22:30:18.908 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 22:30:18.908 INFO [stderr]    --> src/cpu/cpu.rs:102:9
Dec 17 22:30:18.908 INFO [stderr]     |
Dec 17 22:30:18.908 INFO [stderr] 102 |         stdin().read(&mut c);
Dec 17 22:30:18.908 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:18.908 INFO [stderr]     |
Dec 17 22:30:18.908 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 17 22:30:18.908 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 22:30:18.908 INFO [stderr] 
Dec 17 22:30:18.963 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.79s
Dec 17 22:30:19.919 INFO running `"docker" "inspect" "aa7a15c75a10cdf6c343a7bfef2dcf654103773378133ff17ddede2769514181"`
Dec 17 22:30:20.328 INFO running `"docker" "rm" "-f" "aa7a15c75a10cdf6c343a7bfef2dcf654103773378133ff17ddede2769514181"`
Dec 17 22:30:20.636 INFO [stdout] aa7a15c75a10cdf6c343a7bfef2dcf654103773378133ff17ddede2769514181