[INFO] updating cached repository https://github.com/p4ddy1/gbemulator
[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] 3e5ca8f8abfa5d34547a6ba76c443485e530540f
[INFO] checking p4ddy1/gbemulator against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fp4ddy1%2Fgbemulator" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/p4ddy1/gbemulator on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/p4ddy1/gbemulator
[INFO] finished tweaking git repo https://github.com/p4ddy1/gbemulator
[INFO] tweaked toml for git repo https://github.com/p4ddy1/gbemulator written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/p4ddy1/gbemulator already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3ef78c2a5c54faa4e888cf404895427595a85ac7bbd128b323fb2761ccaca098
[INFO] running `"docker" "start" "-a" "3ef78c2a5c54faa4e888cf404895427595a85ac7bbd128b323fb2761ccaca098"`
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling sdl2 v0.32.2
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling sdl2-sys v0.32.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking gbemulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::thread;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::time::Duration;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SCREEN_MAX_PIXELS`
[INFO] [stderr]  --> src/gpu/gpu.rs:2:25
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::gpu::{Pixel, SCREEN_MAX_PIXELS};
[INFO] [stderr]   |                         ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SCALE`, `SCREEN_MAX_PIXELS`
[INFO] [stderr]  --> src/gpu/screen.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::gpu::{Pixel, SCALE, SCREEN_HEIGHT, SCREEN_MAX_PIXELS, SCREEN_WIDTH};
[INFO] [stderr]   |                         ^^^^^                 ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::pixels::Color`
[INFO] [stderr]  --> src/gpu/screen.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use sdl2::pixels::Color;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::thread;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::time::Duration;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SCREEN_MAX_PIXELS`
[INFO] [stderr]  --> src/gpu/gpu.rs:2:25
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::gpu::{Pixel, SCREEN_MAX_PIXELS};
[INFO] [stderr]   |                         ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SCALE`, `SCREEN_MAX_PIXELS`
[INFO] [stderr]  --> src/gpu/screen.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::gpu::{Pixel, SCALE, SCREEN_HEIGHT, SCREEN_MAX_PIXELS, SCREEN_WIDTH};
[INFO] [stderr]   |                         ^^^^^                 ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::pixels::Color`
[INFO] [stderr]  --> src/gpu/screen.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use sdl2::pixels::Color;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/cpu/instructions/cb_instructions.rs:338:9
[INFO] [stderr]     |
[INFO] [stderr] 338 |         _ => None,
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/cartridge/small_cartridge.rs:37:25
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn write(&mut self, address: u16, value: u8) {
[INFO] [stderr]    |                         ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/cartridge/small_cartridge.rs:37:39
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn write(&mut self, address: u16, value: u8) {
[INFO] [stderr]    |                                       ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cpu`
[INFO] [stderr]    --> src/cpu/instructions/instructions.rs:199:23
[INFO] [stderr]     |
[INFO] [stderr] 199 |             handler: |cpu: &mut Cpu, _: &Opcode| {
[INFO] [stderr]     |                       ^^^ help: consider prefixing with an underscore: `_cpu`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/cpu/instructions/cb_instructions.rs:338:9
[INFO] [stderr]     |
[INFO] [stderr] 338 |         _ => None,
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cpu`
[INFO] [stderr]     --> src/cpu/instructions/instructions.rs:1360:23
[INFO] [stderr]      |
[INFO] [stderr] 1360 |             handler: |cpu: &mut Cpu, _: &Opcode| {
[INFO] [stderr]      |                       ^^^ help: consider prefixing with an underscore: `_cpu`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/cartridge/small_cartridge.rs:37:25
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn write(&mut self, address: u16, value: u8) {
[INFO] [stderr]    |                         ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/cartridge/small_cartridge.rs:37:39
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn write(&mut self, address: u16, value: u8) {
[INFO] [stderr]    |                                       ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cpu`
[INFO] [stderr]    --> src/cpu/instructions/instructions.rs:199:23
[INFO] [stderr]     |
[INFO] [stderr] 199 |             handler: |cpu: &mut Cpu, _: &Opcode| {
[INFO] [stderr]     |                       ^^^ help: consider prefixing with an underscore: `_cpu`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cpu`
[INFO] [stderr]     --> src/cpu/instructions/instructions.rs:1360:23
[INFO] [stderr]      |
[INFO] [stderr] 1360 |             handler: |cpu: &mut Cpu, _: &Opcode| {
[INFO] [stderr]      |                       ^^^ help: consider prefixing with an underscore: `_cpu`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let mut texture = texture_creator
[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:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let mut texture = texture_creator
[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: method is never used: `new`
[INFO] [stderr]   --> src/cartridge/small_cartridge.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn new(data: Vec<u8>) -> SmallCartridge {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `TILESET_END_ADDRESS`
[INFO] [stderr]   --> src/gpu/gpu.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | const TILESET_END_ADDRESS: u16 = 0x97EF;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `BGMAP_END_ADDRESS`
[INFO] [stderr]   --> src/gpu/gpu.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | const BGMAP_END_ADDRESS: u16 = 0x9BFE;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `clear_screen_buffer`
[INFO] [stderr]   --> src/gpu/gpu.rs:98:5
[INFO] [stderr]    |
[INFO] [stderr] 98 |     fn clear_screen_buffer(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SCREEN_MAX_PIXELS`
[INFO] [stderr]  --> src/gpu/mod.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const SCREEN_MAX_PIXELS: usize = 256;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `OAM_SIZE`
[INFO] [stderr]   --> src/memory/mmu.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const OAM_SIZE: usize = 159;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `ext_ram`
[INFO] [stderr]   --> src/memory/mmu.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     ext_ram: [u8; EXT_RAM_SIZE],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `FRAME_TIME_NS`
[INFO] [stderr]   --> src/main.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     const FRAME_TIME_NS: u64 = 1000000000 / FPS as u64;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/cartridge/small_cartridge.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn new(data: Vec<u8>) -> SmallCartridge {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `TILESET_END_ADDRESS`
[INFO] [stderr]   --> src/gpu/gpu.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | const TILESET_END_ADDRESS: u16 = 0x97EF;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `BGMAP_END_ADDRESS`
[INFO] [stderr]   --> src/gpu/gpu.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | const BGMAP_END_ADDRESS: u16 = 0x9BFE;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `clear_screen_buffer`
[INFO] [stderr]   --> src/gpu/gpu.rs:98:5
[INFO] [stderr]    |
[INFO] [stderr] 98 |     fn clear_screen_buffer(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SCREEN_MAX_PIXELS`
[INFO] [stderr]  --> src/gpu/mod.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const SCREEN_MAX_PIXELS: usize = 256;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `OAM_SIZE`
[INFO] [stderr]   --> src/memory/mmu.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const OAM_SIZE: usize = 159;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `ext_ram`
[INFO] [stderr]   --> src/memory/mmu.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     ext_ram: [u8; EXT_RAM_SIZE],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 25.63s
[INFO] running `"docker" "inspect" "3ef78c2a5c54faa4e888cf404895427595a85ac7bbd128b323fb2761ccaca098"`
[INFO] running `"docker" "rm" "-f" "3ef78c2a5c54faa4e888cf404895427595a85ac7bbd128b323fb2761ccaca098"`
[INFO] [stdout] 3ef78c2a5c54faa4e888cf404895427595a85ac7bbd128b323fb2761ccaca098