[INFO] cloning repository https://github.com/mr-m0nkey/chip-8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mr-m0nkey/chip-8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmr-m0nkey%2Fchip-8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmr-m0nkey%2Fchip-8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0d82d62ef8e9432f3a244f51d017075f75e5bfef
[INFO] testing mr-m0nkey/chip-8 against master#1ddedbaa5919b7b3e70d984660e21e844c615c97 for pr-128400-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmr-m0nkey%2Fchip-8" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mr-m0nkey/chip-8 on toolchain 1ddedbaa5919b7b3e70d984660e21e844c615c97
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mr-m0nkey/chip-8
[INFO] finished tweaking git repo https://github.com/mr-m0nkey/chip-8
[INFO] tweaked toml for git repo https://github.com/mr-m0nkey/chip-8 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mr-m0nkey/chip-8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8e6d57e8ff8e7b371f6a854cac6730316bc555f85792a2c8a85cd21f2d9619f
[INFO] running `Command { std: "docker" "start" "-a" "a8e6d57e8ff8e7b371f6a854cac6730316bc555f85792a2c8a85cd21f2d9619f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8e6d57e8ff8e7b371f6a854cac6730316bc555f85792a2c8a85cd21f2d9619f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8e6d57e8ff8e7b371f6a854cac6730316bc555f85792a2c8a85cd21f2d9619f", kill_on_drop: false }`
[INFO] [stdout] a8e6d57e8ff8e7b371f6a854cac6730316bc555f85792a2c8a85cd21f2d9619f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae3d1f6839c97ae7907cd7ae3401c4f9760ba638dcf80da950cc9e6099a51f82
[INFO] running `Command { std: "docker" "start" "-a" "ae3d1f6839c97ae7907cd7ae3401c4f9760ba638dcf80da950cc9e6099a51f82", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
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[INFO] [stderr]    Compiling rand_core v0.4.2
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[INFO] [stderr]    Compiling lyon v0.13.5
[INFO] [stderr]    Compiling gilrs-core v0.2.5
[INFO] [stderr]    Compiling gilrs v0.7.3
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling ggez v0.5.1
[INFO] [stderr]    Compiling rodio v0.9.0
[INFO] [stderr]    Compiling smithay-client-toolkit v0.4.6
[INFO] [stderr]    Compiling winit v0.19.5
[INFO] [stderr]    Compiling glutin v0.20.1
[INFO] [stderr]    Compiling gfx_window_glutin v0.30.0
[INFO] [stderr]    Compiling chip_8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `waiting_for_keypress` is never read
[INFO] [stdout]   --> src/cpu.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Cpu {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub waiting_for_keypress: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `core::num::<impl u8>::checked_sub` that must be used
[INFO] [stdout]    --> src/cpu.rs:150:25
[INFO] [stdout]     |
[INFO] [stdout] 150 |                         self.v[x as usize].checked_sub(self.v[y as usize]);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this returns the result of the operation, without modifying the original
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 150 |                         let _ = self.v[x as usize].checked_sub(self.v[y as usize]);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 38.22s
[INFO] running `Command { std: "docker" "inspect" "ae3d1f6839c97ae7907cd7ae3401c4f9760ba638dcf80da950cc9e6099a51f82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae3d1f6839c97ae7907cd7ae3401c4f9760ba638dcf80da950cc9e6099a51f82", kill_on_drop: false }`
[INFO] [stdout] ae3d1f6839c97ae7907cd7ae3401c4f9760ba638dcf80da950cc9e6099a51f82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5946a98296816f2a763983121c496e57fe363238e7af65d162ce86d8d942fc92
[INFO] running `Command { std: "docker" "start" "-a" "5946a98296816f2a763983121c496e57fe363238e7af65d162ce86d8d942fc92", kill_on_drop: false }`
[INFO] [stderr]    Compiling chip_8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `waiting_for_keypress` is never read
[INFO] [stdout]   --> src/cpu.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Cpu {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub waiting_for_keypress: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `core::num::<impl u8>::checked_sub` that must be used
[INFO] [stdout]    --> src/cpu.rs:150:25
[INFO] [stdout]     |
[INFO] [stdout] 150 |                         self.v[x as usize].checked_sub(self.v[y as usize]);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this returns the result of the operation, without modifying the original
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 150 |                         let _ = self.v[x as usize].checked_sub(self.v[y as usize]);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "5946a98296816f2a763983121c496e57fe363238e7af65d162ce86d8d942fc92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5946a98296816f2a763983121c496e57fe363238e7af65d162ce86d8d942fc92", kill_on_drop: false }`
[INFO] [stdout] 5946a98296816f2a763983121c496e57fe363238e7af65d162ce86d8d942fc92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7f96187440e9d52cf364329648469fbd0eb5ca55fa9d66b9107eeff72fe447fe
[INFO] running `Command { std: "docker" "start" "-a" "7f96187440e9d52cf364329648469fbd0eb5ca55fa9d66b9107eeff72fe447fe", kill_on_drop: false }`
[INFO] [stderr] warning: field `waiting_for_keypress` is never read
[INFO] [stderr]   --> src/cpu.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct Cpu {
[INFO] [stderr]    |            --- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 21 |     pub waiting_for_keypress: bool,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `core::num::<impl u8>::checked_sub` that must be used
[INFO] [stderr]    --> src/cpu.rs:150:25
[INFO] [stderr]     |
[INFO] [stderr] 150 |                         self.v[x as usize].checked_sub(self.v[y as usize]);
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this returns the result of the operation, without modifying the original
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 150 |                         let _ = self.v[x as usize].checked_sub(self.v[y as usize]);
[INFO] [stderr]     |                         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `chip_8` (bin "chip_8" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/chip_8-6b7df5d00d0ed7ea)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7f96187440e9d52cf364329648469fbd0eb5ca55fa9d66b9107eeff72fe447fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f96187440e9d52cf364329648469fbd0eb5ca55fa9d66b9107eeff72fe447fe", kill_on_drop: false }`
[INFO] [stdout] 7f96187440e9d52cf364329648469fbd0eb5ca55fa9d66b9107eeff72fe447fe
[INFO] testing mr-m0nkey/chip-8 against try#33f1d8bb92813a1bfc23c093c9f443ab09290307 for pr-128400-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmr-m0nkey%2Fchip-8" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mr-m0nkey/chip-8 on toolchain 33f1d8bb92813a1bfc23c093c9f443ab09290307
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mr-m0nkey/chip-8
[INFO] finished tweaking git repo https://github.com/mr-m0nkey/chip-8
[INFO] tweaked toml for git repo https://github.com/mr-m0nkey/chip-8 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mr-m0nkey/chip-8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e61d307aba0f462c14124de5d85bab7818efee2655c1d7f21e0d881b2dd63be1
[INFO] running `Command { std: "docker" "start" "-a" "e61d307aba0f462c14124de5d85bab7818efee2655c1d7f21e0d881b2dd63be1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e61d307aba0f462c14124de5d85bab7818efee2655c1d7f21e0d881b2dd63be1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e61d307aba0f462c14124de5d85bab7818efee2655c1d7f21e0d881b2dd63be1", kill_on_drop: false }`
[INFO] [stdout] e61d307aba0f462c14124de5d85bab7818efee2655c1d7f21e0d881b2dd63be1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bbc70cc642841a93e1439436b954ecd34d3bc47755e51283da452204cfb70fa
[INFO] running `Command { std: "docker" "start" "-a" "1bbc70cc642841a93e1439436b954ecd34d3bc47755e51283da452204cfb70fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling linked-hash-map v0.5.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
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[INFO] [stderr]    Compiling nix v0.14.1
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[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling stb_truetype v0.3.1
[INFO] [stderr]    Compiling rustc-hash v1.0.1
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[INFO] [stderr]    Compiling chip_8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `waiting_for_keypress` is never read
[INFO] [stdout]   --> src/cpu.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Cpu {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub waiting_for_keypress: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `core::num::<impl u8>::checked_sub` that must be used
[INFO] [stdout]    --> src/cpu.rs:150:25
[INFO] [stdout]     |
[INFO] [stdout] 150 |                         self.v[x as usize].checked_sub(self.v[y as usize]);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this returns the result of the operation, without modifying the original
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 150 |                         let _ = self.v[x as usize].checked_sub(self.v[y as usize]);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 37.46s
[INFO] running `Command { std: "docker" "inspect" "1bbc70cc642841a93e1439436b954ecd34d3bc47755e51283da452204cfb70fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bbc70cc642841a93e1439436b954ecd34d3bc47755e51283da452204cfb70fa", kill_on_drop: false }`
[INFO] [stdout] 1bbc70cc642841a93e1439436b954ecd34d3bc47755e51283da452204cfb70fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea28983b09492b1769cf3b393c0faa216b18537f030c58d8ab1a49efdb041739
[INFO] running `Command { std: "docker" "start" "-a" "ea28983b09492b1769cf3b393c0faa216b18537f030c58d8ab1a49efdb041739", kill_on_drop: false }`
[INFO] [stderr]    Compiling chip_8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `waiting_for_keypress` is never read
[INFO] [stdout]   --> src/cpu.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Cpu {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub waiting_for_keypress: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `core::num::<impl u8>::checked_sub` that must be used
[INFO] [stdout]    --> src/cpu.rs:150:25
[INFO] [stdout]     |
[INFO] [stdout] 150 |                         self.v[x as usize].checked_sub(self.v[y as usize]);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this returns the result of the operation, without modifying the original
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 150 |                         let _ = self.v[x as usize].checked_sub(self.v[y as usize]);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "ea28983b09492b1769cf3b393c0faa216b18537f030c58d8ab1a49efdb041739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea28983b09492b1769cf3b393c0faa216b18537f030c58d8ab1a49efdb041739", kill_on_drop: false }`
[INFO] [stdout] ea28983b09492b1769cf3b393c0faa216b18537f030c58d8ab1a49efdb041739
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 02e58839827e1bc79d713ed8ccdabb6b003a888e7f52298ed7d3e005f6a39a8f
[INFO] running `Command { std: "docker" "start" "-a" "02e58839827e1bc79d713ed8ccdabb6b003a888e7f52298ed7d3e005f6a39a8f", kill_on_drop: false }`
[INFO] [stderr] warning: field `waiting_for_keypress` is never read
[INFO] [stderr]   --> src/cpu.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct Cpu {
[INFO] [stderr]    |            --- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 21 |     pub waiting_for_keypress: bool,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `core::num::<impl u8>::checked_sub` that must be used
[INFO] [stderr]    --> src/cpu.rs:150:25
[INFO] [stderr]     |
[INFO] [stderr] 150 |                         self.v[x as usize].checked_sub(self.v[y as usize]);
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this returns the result of the operation, without modifying the original
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 150 |                         let _ = self.v[x as usize].checked_sub(self.v[y as usize]);
[INFO] [stderr]     |                         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `chip_8` (bin "chip_8" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/chip_8-6b7df5d00d0ed7ea)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "02e58839827e1bc79d713ed8ccdabb6b003a888e7f52298ed7d3e005f6a39a8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02e58839827e1bc79d713ed8ccdabb6b003a888e7f52298ed7d3e005f6a39a8f", kill_on_drop: false }`
[INFO] [stdout] 02e58839827e1bc79d713ed8ccdabb6b003a888e7f52298ed7d3e005f6a39a8f