[INFO] cloning repository https://github.com/wartyz/rustgameboy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wartyz/rustgameboy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwartyz%2Frustgameboy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwartyz%2Frustgameboy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a3f212a873d6b3d6df52bab55a0d7fecf735d4d7
[INFO] checking wartyz/rustgameboy against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwartyz%2Frustgameboy" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wartyz/rustgameboy on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wartyz/rustgameboy
[INFO] finished tweaking git repo https://github.com/wartyz/rustgameboy
[INFO] tweaked toml for git repo https://github.com/wartyz/rustgameboy written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/wartyz/rustgameboy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1296b204d6a8f8e52fc6a14c434ea7b885c8be083aa6f3ccf92c2343fb2c8ec1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1296b204d6a8f8e52fc6a14c434ea7b885c8be083aa6f3ccf92c2343fb2c8ec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1296b204d6a8f8e52fc6a14c434ea7b885c8be083aa6f3ccf92c2343fb2c8ec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1296b204d6a8f8e52fc6a14c434ea7b885c8be083aa6f3ccf92c2343fb2c8ec1", kill_on_drop: false }`
[INFO] [stdout] 1296b204d6a8f8e52fc6a14c434ea7b885c8be083aa6f3ccf92c2343fb2c8ec1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1f5967de6f966fd03d2d95f141f87934c3b0f5108b82d82b8d79a701fb95451
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d1f5967de6f966fd03d2d95f141f87934c3b0f5108b82d82b8d79a701fb95451", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.15
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]    Compiling minifb v0.12.0
[INFO] [stderr]     Checking libc v0.2.60
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking gbrustemu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::instruction::Instruction`
[INFO] [stdout]  --> src/cpu.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::instruction::Instruction;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ppu::PPU`
[INFO] [stdout]   --> src/mmu.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::ppu::PPU;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::instruction::Instruction`
[INFO] [stdout]  --> src/cpu.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::instruction::Instruction;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ppu::PPU`
[INFO] [stdout]   --> src/mmu.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::ppu::PPU;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cb_d16`
[INFO] [stdout]    --> src/cpu.rs:608:13
[INFO] [stdout]     |
[INFO] [stdout] 608 |         let cb_d16: u16 = (cb_n2 << 8) | cb_n1;
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_cb_d16`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ly`
[INFO] [stdout]     --> src/cpu.rs:1078:21
[INFO] [stdout]      |
[INFO] [stdout] 1078 |                 let ly = mmu.read_byte(0xFF44);
[INFO] [stdout]      |                     ^^ help: if this is intentional, prefix it with an underscore: `_ly`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cb_d16`
[INFO] [stdout]    --> src/cpu.rs:608:13
[INFO] [stdout]     |
[INFO] [stdout] 608 |         let cb_d16: u16 = (cb_n2 << 8) | cb_n1;
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_cb_d16`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ly`
[INFO] [stdout]     --> src/cpu.rs:1078:21
[INFO] [stdout]      |
[INFO] [stdout] 1078 |                 let ly = mmu.read_byte(0xFF44);
[INFO] [stdout]      |                     ^^ help: if this is intentional, prefix it with an underscore: `_ly`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cpu.rs:763:21
[INFO] [stdout]     |
[INFO] [stdout] 763 |                 let mut hl = self.h_l_to_hl();
[INFO] [stdout]     |                     ----^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cpu.rs:763:21
[INFO] [stdout]     |
[INFO] [stdout] 763 |                 let mut hl = self.h_l_to_hl();
[INFO] [stdout]     |                     ----^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_n_flag`
[INFO] [stdout]    --> src/cpu.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn set_n_flag(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calc_half_carry_on_u16_sum`
[INFO] [stdout]    --> src/cpu.rs:174:8
[INFO] [stdout]     |
[INFO] [stdout] 174 |     fn calc_half_carry_on_u16_sum(&self, value_a: u16, value_b: u16) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calc_half_carry_on_u16_sub`
[INFO] [stdout]    --> src/cpu.rs:179:8
[INFO] [stdout]     |
[INFO] [stdout] 179 |     fn calc_half_carry_on_u16_sub(&self, value_a: u16, value_b: u16) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `do_inc_d16`
[INFO] [stdout]    --> src/cpu.rs:193:8
[INFO] [stdout]     |
[INFO] [stdout] 193 |     fn do_inc_d16(&mut self, register_value: u16) -> u16 {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_n_flag`
[INFO] [stdout]    --> src/cpu.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn set_n_flag(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calc_half_carry_on_u16_sum`
[INFO] [stdout]    --> src/cpu.rs:174:8
[INFO] [stdout]     |
[INFO] [stdout] 174 |     fn calc_half_carry_on_u16_sum(&self, value_a: u16, value_b: u16) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calc_half_carry_on_u16_sub`
[INFO] [stdout]    --> src/cpu.rs:179:8
[INFO] [stdout]     |
[INFO] [stdout] 179 |     fn calc_half_carry_on_u16_sub(&self, value_a: u16, value_b: u16) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `do_inc_d16`
[INFO] [stdout]    --> src/cpu.rs:193:8
[INFO] [stdout]     |
[INFO] [stdout] 193 |     fn do_inc_d16(&mut self, register_value: u16) -> u16 {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Instant`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::time::Instant;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Instant`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::time::Instant;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `screen`
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut screen = vec![LIGHTEST_GREEN; SCREEN_WIDTH * SCREEN_HEIGHT];
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_screen`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `screen`
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut screen = vec![LIGHTEST_GREEN; SCREEN_WIDTH * SCREEN_HEIGHT];
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_screen`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut screen = vec![LIGHTEST_GREEN; SCREEN_WIDTH * SCREEN_HEIGHT];
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `WIDTH`
[INFO] [stdout]   --> src/main.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | const WIDTH: usize = 256;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HEIGHT`
[INFO] [stdout]   --> src/main.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | const HEIGHT: usize = 256;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut screen = vec![LIGHTEST_GREEN; SCREEN_WIDTH * SCREEN_HEIGHT];
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `WIDTH`
[INFO] [stdout]   --> src/main.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | const WIDTH: usize = 256;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HEIGHT`
[INFO] [stdout]   --> src/main.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | const HEIGHT: usize = 256;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.78s
[INFO] running `Command { std: "docker" "inspect" "d1f5967de6f966fd03d2d95f141f87934c3b0f5108b82d82b8d79a701fb95451", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1f5967de6f966fd03d2d95f141f87934c3b0f5108b82d82b8d79a701fb95451", kill_on_drop: false }`
[INFO] [stdout] d1f5967de6f966fd03d2d95f141f87934c3b0f5108b82d82b8d79a701fb95451