[INFO] cloning repository https://github.com/bikefrivolously/chip8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bikefrivolously/chip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbikefrivolously%2Fchip8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbikefrivolously%2Fchip8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1ac2ee9cd476eb32e7260b4c3c74e3f9bdfaf4cd
[INFO] testing bikefrivolously/chip8 against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbikefrivolously%2Fchip8" "/workspace/builds/worker-24/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-24/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bikefrivolously/chip8 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bikefrivolously/chip8
[INFO] finished tweaking git repo https://github.com/bikefrivolously/chip8
[INFO] tweaked toml for git repo https://github.com/bikefrivolously/chip8 written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] crate git repo https://github.com/bikefrivolously/chip8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1231e2987cae5d5c7773c10a97d48ff5c0938613c7b2a4eb7e5f2cd8a0833bb4
[INFO] running `Command { std: "docker" "start" "-a" "1231e2987cae5d5c7773c10a97d48ff5c0938613c7b2a4eb7e5f2cd8a0833bb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1231e2987cae5d5c7773c10a97d48ff5c0938613c7b2a4eb7e5f2cd8a0833bb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1231e2987cae5d5c7773c10a97d48ff5c0938613c7b2a4eb7e5f2cd8a0833bb4", kill_on_drop: false }`
[INFO] [stdout] 1231e2987cae5d5c7773c10a97d48ff5c0938613c7b2a4eb7e5f2cd8a0833bb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2621808abcc01290436e05a2b82528b80eacfc1ed3156694495f1cc710aa31e
[INFO] running `Command { std: "docker" "start" "-a" "f2621808abcc01290436e05a2b82528b80eacfc1ed3156694495f1cc710aa31e", kill_on_drop: false }`
[INFO] [stderr]    Compiling chip8 v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/cpu.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         for i in 0..100000 {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused bitwise operation that must be used
[INFO] [stdout]    --> src/cpu.rs:176:17
[INFO] [stdout]     |
[INFO] [stdout] 176 |                 self.v[x] >> 1;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^ the bitwise operation produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 176 |                 let _ = self.v[x] >> 1;
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused bitwise operation that must be used
[INFO] [stdout]    --> src/cpu.rs:190:17
[INFO] [stdout]     |
[INFO] [stdout] 190 |                 self.v[x] << 1;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^ the bitwise operation produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 190 |                 let _ = self.v[x] << 1;
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "f2621808abcc01290436e05a2b82528b80eacfc1ed3156694495f1cc710aa31e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2621808abcc01290436e05a2b82528b80eacfc1ed3156694495f1cc710aa31e", kill_on_drop: false }`
[INFO] [stdout] f2621808abcc01290436e05a2b82528b80eacfc1ed3156694495f1cc710aa31e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e3b63a23d42421a724ecba4afe5ece626c518dd08f3817114790a5982ba4c80
[INFO] running `Command { std: "docker" "start" "-a" "8e3b63a23d42421a724ecba4afe5ece626c518dd08f3817114790a5982ba4c80", kill_on_drop: false }`
[INFO] [stderr]    Compiling chip8 v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/cpu.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         for i in 0..100000 {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused bitwise operation that must be used
[INFO] [stdout]    --> src/cpu.rs:176:17
[INFO] [stdout]     |
[INFO] [stdout] 176 |                 self.v[x] >> 1;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^ the bitwise operation produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 176 |                 let _ = self.v[x] >> 1;
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused bitwise operation that must be used
[INFO] [stdout]    --> src/cpu.rs:190:17
[INFO] [stdout]     |
[INFO] [stdout] 190 |                 self.v[x] << 1;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^ the bitwise operation produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 190 |                 let _ = self.v[x] << 1;
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "8e3b63a23d42421a724ecba4afe5ece626c518dd08f3817114790a5982ba4c80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e3b63a23d42421a724ecba4afe5ece626c518dd08f3817114790a5982ba4c80", kill_on_drop: false }`
[INFO] [stdout] 8e3b63a23d42421a724ecba4afe5ece626c518dd08f3817114790a5982ba4c80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3197ff757e18d3a850c454cbe5140d623b97796a8251e49d28ed3dd06c02fafb
[INFO] running `Command { std: "docker" "start" "-a" "3197ff757e18d3a850c454cbe5140d623b97796a8251e49d28ed3dd06c02fafb", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/cpu.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |         for i in 0..100000 {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused bitwise operation that must be used
[INFO] [stderr]    --> src/cpu.rs:176:17
[INFO] [stderr]     |
[INFO] [stderr] 176 |                 self.v[x] >> 1;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ the bitwise operation produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 176 |                 let _ = self.v[x] >> 1;
[INFO] [stderr]     |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused bitwise operation that must be used
[INFO] [stderr]    --> src/cpu.rs:190:17
[INFO] [stderr]     |
[INFO] [stderr] 190 |                 self.v[x] << 1;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ the bitwise operation produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 190 |                 let _ = self.v[x] << 1;
[INFO] [stderr]     |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `chip8` (bin "chip8" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/chip8-642d07c9b646dd64)
[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" "3197ff757e18d3a850c454cbe5140d623b97796a8251e49d28ed3dd06c02fafb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3197ff757e18d3a850c454cbe5140d623b97796a8251e49d28ed3dd06c02fafb", kill_on_drop: false }`
[INFO] [stdout] 3197ff757e18d3a850c454cbe5140d623b97796a8251e49d28ed3dd06c02fafb