[INFO] cloning repository https://github.com/nathan-teoh/gbc_emu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nathan-teoh/gbc_emu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathan-teoh%2Fgbc_emu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathan-teoh%2Fgbc_emu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5c0eb08a669b743ff259aa449bec261a94c6cb31
[INFO] testing nathan-teoh/gbc_emu against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathan-teoh%2Fgbc_emu" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nathan-teoh/gbc_emu
[INFO] finished tweaking git repo https://github.com/nathan-teoh/gbc_emu
[INFO] tweaked toml for git repo https://github.com/nathan-teoh/gbc_emu written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nathan-teoh/gbc_emu on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nathan-teoh/gbc_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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2931a39e098efcc46507e52b17cbf186431e74a097d3b1ecede3a4ba1f45c66
[INFO] running `Command { std: "docker" "start" "-a" "a2931a39e098efcc46507e52b17cbf186431e74a097d3b1ecede3a4ba1f45c66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2931a39e098efcc46507e52b17cbf186431e74a097d3b1ecede3a4ba1f45c66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2931a39e098efcc46507e52b17cbf186431e74a097d3b1ecede3a4ba1f45c66", kill_on_drop: false }`
[INFO] [stdout] a2931a39e098efcc46507e52b17cbf186431e74a097d3b1ecede3a4ba1f45c66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7e69b6f711bef2009f755082192541272803284fe9999e4c69dcc5327d31f7c
[INFO] running `Command { std: "docker" "start" "-a" "f7e69b6f711bef2009f755082192541272803284fe9999e4c69dcc5327d31f7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling gbemu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/CPU.rs:309:9
[INFO] [stdout]     |
[INFO] [stdout] 309 |         self.registers.f.half_carry = todo!();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-------
[INFO] [stdout]     |         |                             |
[INFO] [stdout]     |         |                             any code following this expression is unreachable
[INFO] [stdout]     |         unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/CPU.rs:319:9
[INFO] [stdout]     |
[INFO] [stdout] 319 |         self.registers.f.half_carry = todo!();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-------
[INFO] [stdout]     |         |                             |
[INFO] [stdout]     |         |                             any code following this expression is unreachable
[INFO] [stdout]     |         unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/CPU.rs:329:9
[INFO] [stdout]     |
[INFO] [stdout] 329 |         self.registers.f.half_carry = todo!();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-------
[INFO] [stdout]     |         |                             |
[INFO] [stdout]     |         |                             any code following this expression is unreachable
[INFO] [stdout]     |         unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this arithmetic operation will overflow
[INFO] [stdout]    --> src/CPU.rs:302:19
[INFO] [stdout]     |
[INFO] [stdout] 302 |         new_val | ((self.registers.f.carry as u8) << 8)
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ attempt to shift left by `8_i32`, which would overflow
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(arithmetic_overflow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `did_overflow`
[INFO] [stdout]    --> src/CPU.rs:306:23
[INFO] [stdout]     |
[INFO] [stdout] 306 |         let (new_val, did_overflow) = self.registers.a.overflowing_sub(value);
[INFO] [stdout]     |                       ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_did_overflow`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `did_overflow`
[INFO] [stdout]    --> src/CPU.rs:316:23
[INFO] [stdout]     |
[INFO] [stdout] 316 |         let (new_val, did_overflow) = self.registers.a.overflowing_sub(value);
[INFO] [stdout]     |                       ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_did_overflow`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Registers` is never constructed
[INFO] [stdout]  --> src/registers.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) struct Registers{
[INFO] [stdout]   |                   ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/registers.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl Registers{
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 51 |     pub fn get_af(&self)->u16{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn get_bc(&self)->u16{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn get_de(&self)->u16{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn get_hl(&self)->u16{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub fn set_af(&mut self, value: u16){
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn set_bc(&mut self, value: u16){
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub fn set_de(&mut self, value: u16){
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn set_hl(&mut self, value: u16){
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Instruction` is never used
[INFO] [stdout]  --> src/instructions.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Instruction{
[INFO] [stdout]   |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ArithmeticTarget` is never used
[INFO] [stdout]   --> src/instructions.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum ArithmeticTarget{
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CPU` is never constructed
[INFO] [stdout]  --> src/CPU.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct CPU{
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/CPU.rs:8:8
[INFO] [stdout]     |
[INFO] [stdout]   7 | impl CPU{
[INFO] [stdout]     | -------- methods in this implementation
[INFO] [stdout]   8 |     fn execute(&mut self, instruction: Instruction){
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 287 |     fn add(&mut self, value: u8) -> u8 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 296 |     fn adc(&mut self, value: u8) -> u8 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 305 |     fn sub(&mut self, value: u8) -> u8 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 315 |     fn sbc(&mut self, value: u8) -> u8 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 325 |     fn and(&mut self, value: u8) -> u8 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 334 |     fn or(&mut self, value: u8) -> u8 {
[INFO] [stdout]     |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 343 |     fn xor(&mut self, value: u8) -> u8 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `CPU` should have a snake case name
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | mod CPU;
[INFO] [stdout]   |     ^^^ help: convert the identifier to snake case: `cpu`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gbemu` (bin "gbemu") due to 1 previous error; 12 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f7e69b6f711bef2009f755082192541272803284fe9999e4c69dcc5327d31f7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7e69b6f711bef2009f755082192541272803284fe9999e4c69dcc5327d31f7c", kill_on_drop: false }`
[INFO] [stdout] f7e69b6f711bef2009f755082192541272803284fe9999e4c69dcc5327d31f7c
