[INFO] cloning repository https://github.com/maxcohn/gb-emu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maxcohn/gb-emu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxcohn%2Fgb-emu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxcohn%2Fgb-emu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0dc4e06acec1b402911781fe707eb72deaf7be72
[INFO] checking maxcohn/gb-emu against master#c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2 for pr-142712
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxcohn%2Fgb-emu" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/maxcohn/gb-emu
[INFO] finished tweaking git repo https://github.com/maxcohn/gb-emu
[INFO] tweaked toml for git repo https://github.com/maxcohn/gb-emu written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/maxcohn/gb-emu on toolchain c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/maxcohn/gb-emu 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" "+c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f3a3f23a6152c44a821951f0866348f301d6807d29430b49453e82034554f65
[INFO] running `Command { std: "docker" "start" "-a" "6f3a3f23a6152c44a821951f0866348f301d6807d29430b49453e82034554f65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f3a3f23a6152c44a821951f0866348f301d6807d29430b49453e82034554f65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f3a3f23a6152c44a821951f0866348f301d6807d29430b49453e82034554f65", kill_on_drop: false }`
[INFO] [stdout] 6f3a3f23a6152c44a821951f0866348f301d6807d29430b49453e82034554f65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 166875f470e33b18860892cd03ffd176afd8f04d4e07efc061d51a5ec8797f97
[INFO] running `Command { std: "docker" "start" "-a" "166875f470e33b18860892cd03ffd176afd8f04d4e07efc061d51a5ec8797f97", kill_on_drop: false }`
[INFO] [stderr]     Checking gb-emu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::cartridge::Cartridge`
[INFO] [stdout]   --> src/memory.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use crate::cartridge::Cartridge;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cartridge::Cartridge`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use cartridge::Cartridge;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::cartridge::Cartridge`
[INFO] [stdout]   --> src/memory.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use crate::cartridge::Cartridge;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cartridge::Cartridge`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use cartridge::Cartridge;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cycles`
[INFO] [stdout]     --> src/cpu.rs:1016:21
[INFO] [stdout]      |
[INFO] [stdout] 1016 |                 let cycles = self.exec_cb();
[INFO] [stdout]      |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_cycles`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cycles_passed`
[INFO] [stdout]     --> src/cpu.rs:1128:13
[INFO] [stdout]      |
[INFO] [stdout] 1128 |         let cycles_passed = OP_CYCLES[cur_op as usize];
[INFO] [stdout]      |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cycles_passed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cycles`
[INFO] [stdout]     --> src/cpu.rs:1016:21
[INFO] [stdout]      |
[INFO] [stdout] 1016 |                 let cycles = self.exec_cb();
[INFO] [stdout]      |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_cycles`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cycles_passed`
[INFO] [stdout]     --> src/cpu.rs:1128:13
[INFO] [stdout]      |
[INFO] [stdout] 1128 |         let cycles_passed = OP_CYCLES[cur_op as usize];
[INFO] [stdout]      |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cycles_passed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     for i in 100..500 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `print_registers`, `get_af`, `get_flag_sub`, and `get_flag_half_carry` are never used
[INFO] [stdout]    --> src/registers.rs:39:12
[INFO] [stdout]     |
[INFO] [stdout] 21  | impl Registers {
[INFO] [stdout]     | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39  |     pub fn print_registers(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83  |     pub fn get_af(&self) -> u16 {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 177 |     pub fn get_flag_sub(&self) -> u8 {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 181 |     pub fn get_flag_half_carry(&self) -> u8 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CB_LENGTHS` is never used
[INFO] [stdout]   --> src/cpu.rs:73:7
[INFO] [stdout]    |
[INFO] [stdout] 73 | const CB_LENGTHS: [u8; 0x100] = [
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `new_empty_mem` are never used
[INFO] [stdout]    --> src/cpu.rs:169:12
[INFO] [stdout]     |
[INFO] [stdout] 167 | impl CPU {
[INFO] [stdout]     | -------- associated functions in this implementation
[INFO] [stdout] 168 |     /// Create a new CPU struct
[INFO] [stdout] 169 |     pub fn new(memory: Memory) -> CPU {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 |     fn new_empty_mem() -> CPU {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         std::io::stdin().read_line(&mut s);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let _ = std::io::stdin().read_line(&mut s);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     for i in 100..500 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_registers` is never used
[INFO] [stdout]   --> src/registers.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Registers {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn print_registers(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CB_LENGTHS` is never used
[INFO] [stdout]   --> src/cpu.rs:73:7
[INFO] [stdout]    |
[INFO] [stdout] 73 | const CB_LENGTHS: [u8; 0x100] = [
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/cpu.rs:169:12
[INFO] [stdout]     |
[INFO] [stdout] 167 | impl CPU {
[INFO] [stdout]     | -------- associated function in this implementation
[INFO] [stdout] 168 |     /// Create a new CPU struct
[INFO] [stdout] 169 |     pub fn new(memory: Memory) -> CPU {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rlc` is never used
[INFO] [stdout]     --> src/cpu.rs:1596:8
[INFO] [stdout]      |
[INFO] [stdout] 1596 |     fn rlc() {
[INFO] [stdout]      |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         std::io::stdin().read_line(&mut s);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let _ = std::io::stdin().read_line(&mut s);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "166875f470e33b18860892cd03ffd176afd8f04d4e07efc061d51a5ec8797f97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "166875f470e33b18860892cd03ffd176afd8f04d4e07efc061d51a5ec8797f97", kill_on_drop: false }`
[INFO] [stdout] 166875f470e33b18860892cd03ffd176afd8f04d4e07efc061d51a5ec8797f97