[INFO] updating cached repository https://github.com/sbuggay/rnes
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cd26a016b689589dd14089667bdede8ab9459e96
[INFO] testing sbuggay/rnes against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsbuggay%2Frnes" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sbuggay/rnes on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sbuggay/rnes
[INFO] finished tweaking git repo https://github.com/sbuggay/rnes
[INFO] tweaked toml for git repo https://github.com/sbuggay/rnes written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/sbuggay/rnes already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f1e36ee20d9559567693c515ebcee9aae344839507f1de902531c40519f84092
[INFO] running `"docker" "start" "-a" "f1e36ee20d9559567693c515ebcee9aae344839507f1de902531c40519f84092"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling sdl2-sys v0.31.0 (https://github.com/AngryLawyer/rust-sdl2#4bb6b9ab)
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling sdl2 v0.31.0 (https://github.com/AngryLawyer/rust-sdl2#4bb6b9ab)
[INFO] [stderr]    Compiling nes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/rom.rs:18:3
[INFO] [stderr]    |
[INFO] [stderr] 18 |         try!(write!(
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/simulate.rs:23:3
[INFO] [stderr]    |
[INFO] [stderr] 23 |         try!(write!(
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time`
[INFO] [stderr]  --> src/cpu.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::time;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/instructions.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ErrorKind`, `Error`
[INFO] [stderr]  --> src/rom.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{Error, ErrorKind, Read, Seek, SeekFrom};
[INFO] [stderr]   |               ^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ErrorKind`, `Error`, `SeekFrom`
[INFO] [stderr]  --> src/simulate.rs:3:24
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{BufRead, Error, ErrorKind, Read, Seek, SeekFrom};
[INFO] [stderr]   |                        ^^^^^  ^^^^^^^^^              ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::io::prelude::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::*`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::time::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::event::Event`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use sdl2::event::Event;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::keyboard::Keycode`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use sdl2::keyboard::Keycode;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `simulated_cpu`
[INFO] [stderr]   --> src/main.rs:26:6
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut simulated_cpu = simulate::Simulate::load(&mut nestest);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_simulated_cpu`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `event_pump`
[INFO] [stderr]   --> src/main.rs:56:6
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let mut event_pump = sdl_context.event_pump().unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_event_pump`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `last_frame`
[INFO] [stderr]   --> src/main.rs:57:6
[INFO] [stderr]    |
[INFO] [stderr] 57 |     let mut last_frame = std::time::Instant::now();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frames`
[INFO] [stderr]   --> src/main.rs:58:6
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let mut frames = 0;
[INFO] [stderr]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_frames`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:59:6
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let mut i = 1;
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cycles`
[INFO] [stderr]   --> src/cpu.rs:82:7
[INFO] [stderr]    |
[INFO] [stderr] 82 |         let cycles = CYCLE_TABLE[opcode as usize];
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_cycles`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:26:6
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut simulated_cpu = simulate::Simulate::load(&mut nestest);
[INFO] [stderr]    |         ----^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:56:6
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let mut event_pump = sdl_context.event_pump().unwrap();
[INFO] [stderr]    |         ----^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:57:6
[INFO] [stderr]    |
[INFO] [stderr] 57 |     let mut last_frame = std::time::Instant::now();
[INFO] [stderr]    |         ----^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:58:6
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let mut frames = 0;
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:59:6
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let mut i = 1;
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dump`
[INFO] [stderr]    --> src/rom.rs:102:2
[INFO] [stderr]     |
[INFO] [stderr] 102 |     pub fn dump(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rom_bank_count`
[INFO] [stderr]    --> src/rom.rs:109:2
[INFO] [stderr]     |
[INFO] [stderr] 109 |     pub fn rom_bank_count(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `video_rom_bank_count`
[INFO] [stderr]    --> src/rom.rs:113:2
[INFO] [stderr]     |
[INFO] [stderr] 113 |     pub fn video_rom_bank_count(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `step`
[INFO] [stderr]   --> src/simulate.rs:53:2
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn step(&mut self) -> CpuState {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/rom.rs:41:2
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fp.read_exact(&mut val);
[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: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/rom.rs:48:3
[INFO] [stderr]    |
[INFO] [stderr] 48 |         fp.read_exact(&mut magic);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/rom.rs:63:3
[INFO] [stderr]    |
[INFO] [stderr] 63 |         fp.seek(SeekFrom::Current(7));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/rom.rs:87:4
[INFO] [stderr]    |
[INFO] [stderr] 87 |             fp.seek(SeekFrom::Current(512));
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/rom.rs:90:3
[INFO] [stderr]    |
[INFO] [stderr] 90 |         fp.read_exact(&mut rom[..]);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/rom.rs:91:3
[INFO] [stderr]    |
[INFO] [stderr] 91 |         fp.read_exact(&mut video_rom[..]);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 31 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.99s
[INFO] running `"docker" "inspect" "f1e36ee20d9559567693c515ebcee9aae344839507f1de902531c40519f84092"`
[INFO] running `"docker" "rm" "-f" "f1e36ee20d9559567693c515ebcee9aae344839507f1de902531c40519f84092"`
[INFO] [stdout] f1e36ee20d9559567693c515ebcee9aae344839507f1de902531c40519f84092
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 76331c9324beed7fa8730ff3323b6a00c28c3edeec28e148dfaa8a81f374a360
[INFO] running `"docker" "start" "-a" "76331c9324beed7fa8730ff3323b6a00c28c3edeec28e148dfaa8a81f374a360"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling nes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/rom.rs:18:3
[INFO] [stderr]    |
[INFO] [stderr] 18 |         try!(write!(
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/simulate.rs:23:3
[INFO] [stderr]    |
[INFO] [stderr] 23 |         try!(write!(
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time`
[INFO] [stderr]  --> src/cpu.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::time;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/instructions.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ErrorKind`, `Error`
[INFO] [stderr]  --> src/rom.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{Error, ErrorKind, Read, Seek, SeekFrom};
[INFO] [stderr]   |               ^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ErrorKind`, `Error`, `SeekFrom`
[INFO] [stderr]  --> src/simulate.rs:3:24
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{BufRead, Error, ErrorKind, Read, Seek, SeekFrom};
[INFO] [stderr]   |                        ^^^^^  ^^^^^^^^^              ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::io::prelude::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::*`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::time::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::event::Event`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use sdl2::event::Event;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::keyboard::Keycode`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use sdl2::keyboard::Keycode;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `simulated_cpu`
[INFO] [stderr]   --> src/main.rs:26:6
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut simulated_cpu = simulate::Simulate::load(&mut nestest);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_simulated_cpu`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `event_pump`
[INFO] [stderr]   --> src/main.rs:56:6
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let mut event_pump = sdl_context.event_pump().unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_event_pump`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `last_frame`
[INFO] [stderr]   --> src/main.rs:57:6
[INFO] [stderr]    |
[INFO] [stderr] 57 |     let mut last_frame = std::time::Instant::now();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frames`
[INFO] [stderr]   --> src/main.rs:58:6
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let mut frames = 0;
[INFO] [stderr]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_frames`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:59:6
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let mut i = 1;
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cycles`
[INFO] [stderr]   --> src/cpu.rs:82:7
[INFO] [stderr]    |
[INFO] [stderr] 82 |         let cycles = CYCLE_TABLE[opcode as usize];
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_cycles`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:26:6
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut simulated_cpu = simulate::Simulate::load(&mut nestest);
[INFO] [stderr]    |         ----^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:56:6
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let mut event_pump = sdl_context.event_pump().unwrap();
[INFO] [stderr]    |         ----^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:57:6
[INFO] [stderr]    |
[INFO] [stderr] 57 |     let mut last_frame = std::time::Instant::now();
[INFO] [stderr]    |         ----^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:58:6
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let mut frames = 0;
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:59:6
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let mut i = 1;
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dump`
[INFO] [stderr]    --> src/rom.rs:102:2
[INFO] [stderr]     |
[INFO] [stderr] 102 |     pub fn dump(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rom_bank_count`
[INFO] [stderr]    --> src/rom.rs:109:2
[INFO] [stderr]     |
[INFO] [stderr] 109 |     pub fn rom_bank_count(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `video_rom_bank_count`
[INFO] [stderr]    --> src/rom.rs:113:2
[INFO] [stderr]     |
[INFO] [stderr] 113 |     pub fn video_rom_bank_count(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `step`
[INFO] [stderr]   --> src/simulate.rs:53:2
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn step(&mut self) -> CpuState {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/rom.rs:41:2
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fp.read_exact(&mut val);
[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: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/rom.rs:48:3
[INFO] [stderr]    |
[INFO] [stderr] 48 |         fp.read_exact(&mut magic);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/rom.rs:63:3
[INFO] [stderr]    |
[INFO] [stderr] 63 |         fp.seek(SeekFrom::Current(7));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/rom.rs:87:4
[INFO] [stderr]    |
[INFO] [stderr] 87 |             fp.seek(SeekFrom::Current(512));
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/rom.rs:90:3
[INFO] [stderr]    |
[INFO] [stderr] 90 |         fp.read_exact(&mut rom[..]);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/rom.rs:91:3
[INFO] [stderr]    |
[INFO] [stderr] 91 |         fp.read_exact(&mut video_rom[..]);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 31 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `"docker" "inspect" "76331c9324beed7fa8730ff3323b6a00c28c3edeec28e148dfaa8a81f374a360"`
[INFO] running `"docker" "rm" "-f" "76331c9324beed7fa8730ff3323b6a00c28c3edeec28e148dfaa8a81f374a360"`
[INFO] [stdout] 76331c9324beed7fa8730ff3323b6a00c28c3edeec28e148dfaa8a81f374a360
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5fbc88a91d526f33fc287a608d2feda87b5b9c506f0a90fd37883bbd788bd7eb
[INFO] running `"docker" "start" "-a" "5fbc88a91d526f33fc287a608d2feda87b5b9c506f0a90fd37883bbd788bd7eb"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/rom.rs:18:3
[INFO] [stderr]    |
[INFO] [stderr] 18 |         try!(write!(
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/simulate.rs:23:3
[INFO] [stderr]    |
[INFO] [stderr] 23 |         try!(write!(
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time`
[INFO] [stderr]  --> src/cpu.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::time;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/instructions.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ErrorKind`, `Error`
[INFO] [stderr]  --> src/rom.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{Error, ErrorKind, Read, Seek, SeekFrom};
[INFO] [stderr]   |               ^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ErrorKind`, `Error`, `SeekFrom`
[INFO] [stderr]  --> src/simulate.rs:3:24
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{BufRead, Error, ErrorKind, Read, Seek, SeekFrom};
[INFO] [stderr]   |                        ^^^^^  ^^^^^^^^^              ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::io::prelude::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::*`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::time::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::event::Event`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use sdl2::event::Event;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::keyboard::Keycode`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use sdl2::keyboard::Keycode;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `simulated_cpu`
[INFO] [stderr]   --> src/main.rs:26:6
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut simulated_cpu = simulate::Simulate::load(&mut nestest);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_simulated_cpu`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `event_pump`
[INFO] [stderr]   --> src/main.rs:56:6
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let mut event_pump = sdl_context.event_pump().unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_event_pump`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `last_frame`
[INFO] [stderr]   --> src/main.rs:57:6
[INFO] [stderr]    |
[INFO] [stderr] 57 |     let mut last_frame = std::time::Instant::now();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frames`
[INFO] [stderr]   --> src/main.rs:58:6
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let mut frames = 0;
[INFO] [stderr]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_frames`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:59:6
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let mut i = 1;
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cycles`
[INFO] [stderr]   --> src/cpu.rs:82:7
[INFO] [stderr]    |
[INFO] [stderr] 82 |         let cycles = CYCLE_TABLE[opcode as usize];
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_cycles`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:26:6
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut simulated_cpu = simulate::Simulate::load(&mut nestest);
[INFO] [stderr]    |         ----^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:56:6
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let mut event_pump = sdl_context.event_pump().unwrap();
[INFO] [stderr]    |         ----^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:57:6
[INFO] [stderr]    |
[INFO] [stderr] 57 |     let mut last_frame = std::time::Instant::now();
[INFO] [stderr]    |         ----^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:58:6
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let mut frames = 0;
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:59:6
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let mut i = 1;
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dump`
[INFO] [stderr]    --> src/rom.rs:102:2
[INFO] [stderr]     |
[INFO] [stderr] 102 |     pub fn dump(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rom_bank_count`
[INFO] [stderr]    --> src/rom.rs:109:2
[INFO] [stderr]     |
[INFO] [stderr] 109 |     pub fn rom_bank_count(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `video_rom_bank_count`
[INFO] [stderr]    --> src/rom.rs:113:2
[INFO] [stderr]     |
[INFO] [stderr] 113 |     pub fn video_rom_bank_count(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `step`
[INFO] [stderr]   --> src/simulate.rs:53:2
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn step(&mut self) -> CpuState {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/rom.rs:41:2
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fp.read_exact(&mut val);
[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: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/rom.rs:48:3
[INFO] [stderr]    |
[INFO] [stderr] 48 |         fp.read_exact(&mut magic);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/rom.rs:63:3
[INFO] [stderr]    |
[INFO] [stderr] 63 |         fp.seek(SeekFrom::Current(7));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/rom.rs:87:4
[INFO] [stderr]    |
[INFO] [stderr] 87 |             fp.seek(SeekFrom::Current(512));
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/rom.rs:90:3
[INFO] [stderr]    |
[INFO] [stderr] 90 |         fp.read_exact(&mut rom[..]);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/rom.rs:91:3
[INFO] [stderr]    |
[INFO] [stderr] 91 |         fp.read_exact(&mut video_rom[..]);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 31 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/nes-dacc7d77f598da56
[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" "5fbc88a91d526f33fc287a608d2feda87b5b9c506f0a90fd37883bbd788bd7eb"`
[INFO] running `"docker" "rm" "-f" "5fbc88a91d526f33fc287a608d2feda87b5b9c506f0a90fd37883bbd788bd7eb"`
[INFO] [stdout] 5fbc88a91d526f33fc287a608d2feda87b5b9c506f0a90fd37883bbd788bd7eb