[INFO] updating cached repository https://github.com/cadecolvin/chip8-emu
[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] 3c1bcfb61d1ad2231286798caaca9ed67d0a1e64
[INFO] testing cadecolvin/chip8-emu against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcadecolvin%2Fchip8-emu" "/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/cadecolvin/chip8-emu on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/cadecolvin/chip8-emu
[INFO] finished tweaking git repo https://github.com/cadecolvin/chip8-emu
[INFO] tweaked toml for git repo https://github.com/cadecolvin/chip8-emu written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/cadecolvin/chip8-emu already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "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=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" "+28742a1146f10a4f09369baad027a464acb7a766" "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] e0983e15e6975bfa9d25765c55d6010b9f6b2e9e618a1dd42f4695b35474ca0f
[INFO] running `"docker" "start" "-a" "e0983e15e6975bfa9d25765c55d6010b9f6b2e9e618a1dd42f4695b35474ca0f"`
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling chip8-emu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `chip8`
[INFO] [stderr]  --> src/main.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let chip8 = Chip8::new();
[INFO] [stderr]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_chip8`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `pixel_flipped` is assigned to, but never used
[INFO] [stderr]    --> src/chip8.rs:140:21
[INFO] [stderr]     |
[INFO] [stderr] 140 |                 let mut pixel_flipped = false;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_pixel_flipped` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `pixel_flipped` is never read
[INFO] [stderr]    --> src/chip8.rs:157:29
[INFO] [stderr]     |
[INFO] [stderr] 157 | ...                   pixel_flipped = true;
[INFO] [stderr]     |                       ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/chip8.rs:139:21
[INFO] [stderr]     |
[INFO] [stderr] 139 |                 let mut sprite_idx = self.addr_register;
[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: `execute_cycle`
[INFO] [stderr]   --> src/chip8.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn execute_cycle(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_word`
[INFO] [stderr]   --> src/chip8.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn read_word(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `process_opcode`
[INFO] [stderr]   --> src/chip8.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn process_opcode(&mut self, opcode: u16) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.43s
[INFO] running `"docker" "inspect" "e0983e15e6975bfa9d25765c55d6010b9f6b2e9e618a1dd42f4695b35474ca0f"`
[INFO] running `"docker" "rm" "-f" "e0983e15e6975bfa9d25765c55d6010b9f6b2e9e618a1dd42f4695b35474ca0f"`
[INFO] [stdout] e0983e15e6975bfa9d25765c55d6010b9f6b2e9e618a1dd42f4695b35474ca0f
[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=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" "+28742a1146f10a4f09369baad027a464acb7a766" "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] 788c519992efaeb8081e5f99035ba33dee69c25f5ecbc7a7c0bfc0673804d555
[INFO] running `"docker" "start" "-a" "788c519992efaeb8081e5f99035ba33dee69c25f5ecbc7a7c0bfc0673804d555"`
[INFO] [stderr]    Compiling chip8-emu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `chip8`
[INFO] [stderr]  --> src/main.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let chip8 = Chip8::new();
[INFO] [stderr]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_chip8`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `pixel_flipped` is assigned to, but never used
[INFO] [stderr]    --> src/chip8.rs:140:21
[INFO] [stderr]     |
[INFO] [stderr] 140 |                 let mut pixel_flipped = false;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_pixel_flipped` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `pixel_flipped` is never read
[INFO] [stderr]    --> src/chip8.rs:157:29
[INFO] [stderr]     |
[INFO] [stderr] 157 | ...                   pixel_flipped = true;
[INFO] [stderr]     |                       ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/chip8.rs:139:21
[INFO] [stderr]     |
[INFO] [stderr] 139 |                 let mut sprite_idx = self.addr_register;
[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: `execute_cycle`
[INFO] [stderr]   --> src/chip8.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn execute_cycle(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_word`
[INFO] [stderr]   --> src/chip8.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn read_word(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `process_opcode`
[INFO] [stderr]   --> src/chip8.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn process_opcode(&mut self, opcode: u16) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `"docker" "inspect" "788c519992efaeb8081e5f99035ba33dee69c25f5ecbc7a7c0bfc0673804d555"`
[INFO] running `"docker" "rm" "-f" "788c519992efaeb8081e5f99035ba33dee69c25f5ecbc7a7c0bfc0673804d555"`
[INFO] [stdout] 788c519992efaeb8081e5f99035ba33dee69c25f5ecbc7a7c0bfc0673804d555
[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=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" "+28742a1146f10a4f09369baad027a464acb7a766" "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] 03cd9c96e5521264b5e618f827a088dac57de584ee71c7eccf228578161f179b
[INFO] running `"docker" "start" "-a" "03cd9c96e5521264b5e618f827a088dac57de584ee71c7eccf228578161f179b"`
[INFO] [stderr] warning: unused variable: `chip8`
[INFO] [stderr]  --> src/main.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let chip8 = Chip8::new();
[INFO] [stderr]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_chip8`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `pixel_flipped` is assigned to, but never used
[INFO] [stderr]    --> src/chip8.rs:140:21
[INFO] [stderr]     |
[INFO] [stderr] 140 |                 let mut pixel_flipped = false;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_pixel_flipped` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `pixel_flipped` is never read
[INFO] [stderr]    --> src/chip8.rs:157:29
[INFO] [stderr]     |
[INFO] [stderr] 157 | ...                   pixel_flipped = true;
[INFO] [stderr]     |                       ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/chip8.rs:139:21
[INFO] [stderr]     |
[INFO] [stderr] 139 |                 let mut sprite_idx = self.addr_register;
[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: `execute_cycle`
[INFO] [stderr]   --> src/chip8.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn execute_cycle(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_word`
[INFO] [stderr]   --> src/chip8.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn read_word(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `process_opcode`
[INFO] [stderr]   --> src/chip8.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn process_opcode(&mut self, opcode: u16) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/chip8_emu-7cc1cea4057f9b1f
[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" "03cd9c96e5521264b5e618f827a088dac57de584ee71c7eccf228578161f179b"`
[INFO] running `"docker" "rm" "-f" "03cd9c96e5521264b5e618f827a088dac57de584ee71c7eccf228578161f179b"`
[INFO] [stdout] 03cd9c96e5521264b5e618f827a088dac57de584ee71c7eccf228578161f179b