[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] [stderr] From https://github.com/p4ddy1/gbemulator
[INFO] [stderr]    d0f6eef..fd2a0bf  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fd2a0bfeb11646a79e055f3c783b0227cd8533b6
[INFO] checking p4ddy1/gbemulator against master#73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de for pr-68325
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fp4ddy1%2Fgbemulator" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/p4ddy1/gbemulator on toolchain 73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de
[INFO] running `"/workspace/cargo-home/bin/cargo" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "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-3/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" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "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] d0ef7252ec393a732b87de30b527a1422716fa6df18c5ab7d7148e1ea210b953
[INFO] running `"docker" "start" "-a" "d0ef7252ec393a732b87de30b527a1422716fa6df18c5ab7d7148e1ea210b953"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]     Checking rand_core v0.4.2
[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_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[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: 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:1258:23
[INFO] [stderr]      |
[INFO] [stderr] 1258 |             handler: |cpu: &mut Cpu, _: &Opcode| {
[INFO] [stderr]      |                       ^^^ help: consider prefixing with an underscore: `_cpu`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sprite_options`
[INFO] [stderr]    --> src/gpu/gpu.rs:178:17
[INFO] [stderr]     |
[INFO] [stderr] 178 |             let sprite_options = self.read_oam(sprite_begin_address + 3);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_sprite_options`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/cartridge/cartridge.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new(data: Vec<u8>) -> Cartridge {
[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:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | 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:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | 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:97:5
[INFO] [stderr]    |
[INFO] [stderr] 97 |     fn clear_screen_buffer(&mut self) {
[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: 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:1258:23
[INFO] [stderr]      |
[INFO] [stderr] 1258 |             handler: |cpu: &mut Cpu, _: &Opcode| {
[INFO] [stderr]      |                       ^^^ help: consider prefixing with an underscore: `_cpu`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sprite_options`
[INFO] [stderr]    --> src/gpu/gpu.rs:178:17
[INFO] [stderr]     |
[INFO] [stderr] 178 |             let sprite_options = self.read_oam(sprite_begin_address + 3);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_sprite_options`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/cartridge/cartridge.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new(data: Vec<u8>) -> Cartridge {
[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:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | 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:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | 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:97:5
[INFO] [stderr]    |
[INFO] [stderr] 97 |     fn clear_screen_buffer(&mut self) {
[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]     Finished dev [optimized + debuginfo] target(s) in 16.28s
[INFO] running `"docker" "inspect" "d0ef7252ec393a732b87de30b527a1422716fa6df18c5ab7d7148e1ea210b953"`
[INFO] running `"docker" "rm" "-f" "d0ef7252ec393a732b87de30b527a1422716fa6df18c5ab7d7148e1ea210b953"`
[INFO] [stdout] d0ef7252ec393a732b87de30b527a1422716fa6df18c5ab7d7148e1ea210b953