[INFO] updating cached repository https://github.com/wbjohnston/gameboy
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7b941701ef8a8b59bc8a87c03a7799433d9fd0c7
[INFO] checking wbjohnston/gameboy against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwbjohnston%2Fgameboy" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wbjohnston/gameboy on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/wbjohnston/gameboy
[INFO] finished tweaking git repo https://github.com/wbjohnston/gameboy
[INFO] tweaked toml for git repo https://github.com/wbjohnston/gameboy written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/wbjohnston/gameboy already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c49c581c6b59a6d9d9d7a72f39bcc7c4ab12480ef5aaab701e081a6a82be1937
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "c49c581c6b59a6d9d9d7a72f39bcc7c4ab12480ef5aaab701e081a6a82be1937"`
[INFO] [stderr]     Checking memchr v2.2.1
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]    Compiling derivative v1.0.3
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]     Checking rand_xoshiro v0.3.1
[INFO] [stderr]     Checking rand_os v0.2.2
[INFO] [stderr]    Compiling quickcheck_macros v0.8.0
[INFO] [stderr]     Checking criterion-plot v0.4.0
[INFO] [stderr]     Checking rayon-core v1.6.1
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking rayon v1.2.1
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking gameboy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `mmu`
[INFO] [stderr]   --> src/ppu.rs:15:26
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub fn step(&mut self, mmu: &mut MMU, n_cycles: u8) {
[INFO] [stderr]    |                          ^^^ help: consider prefixing with an underscore: `_mmu`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n_cycles`
[INFO] [stderr]   --> src/ppu.rs:15:41
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub fn step(&mut self, mmu: &mut MMU, n_cycles: u8) {
[INFO] [stderr]    |                                         ^^^^^^^^ help: consider prefixing with an underscore: `_n_cycles`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/cartridge.rs:31:26
[INFO] [stderr]    |
[INFO] [stderr] 31 |   pub fn read_ram(&self, address: u16) -> u8 {
[INFO] [stderr]    |                          ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/util.rs:24:36
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn set_bit(target: u16, n: u8, value: bool) -> u16 {
[INFO] [stderr]    |                                    ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_n_flag`
[INFO] [stderr]     --> src/cpu.rs:1145:3
[INFO] [stderr]      |
[INFO] [stderr] 1145 |   fn get_n_flag(&self) -> bool {
[INFO] [stderr]      |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `n_flag`
[INFO] [stderr]     --> src/cpu.rs:1174:3
[INFO] [stderr]      |
[INFO] [stderr] 1174 |   fn n_flag(&self) -> bool {
[INFO] [stderr]      |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `h_flag`
[INFO] [stderr]     --> src/cpu.rs:1178:3
[INFO] [stderr]      |
[INFO] [stderr] 1178 |   fn h_flag(&self) -> bool {
[INFO] [stderr]      |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Checking quickcheck v0.9.0
[INFO] [stderr] warning: unused variable: `cartridge`
[INFO] [stderr]   --> src/bin/debugger.rs:47:7
[INFO] [stderr]    |
[INFO] [stderr] 47 |   let cartridge = {
[INFO] [stderr]    |       ^^^^^^^^^ help: consider prefixing with an underscore: `_cartridge`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Checking criterion v0.3.0
[INFO] [stderr] warning: unused variable: `cartridge`
[INFO] [stderr]   --> src/bin/debugger.rs:47:7
[INFO] [stderr]    |
[INFO] [stderr] 47 |   let cartridge = {
[INFO] [stderr]    |       ^^^^^^^^^ help: consider prefixing with an underscore: `_cartridge`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mmu`
[INFO] [stderr]   --> src/ppu.rs:15:26
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub fn step(&mut self, mmu: &mut MMU, n_cycles: u8) {
[INFO] [stderr]    |                          ^^^ help: consider prefixing with an underscore: `_mmu`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n_cycles`
[INFO] [stderr]   --> src/ppu.rs:15:41
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub fn step(&mut self, mmu: &mut MMU, n_cycles: u8) {
[INFO] [stderr]    |                                         ^^^^^^^^ help: consider prefixing with an underscore: `_n_cycles`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/cartridge.rs:31:26
[INFO] [stderr]    |
[INFO] [stderr] 31 |   pub fn read_ram(&self, address: u16) -> u8 {
[INFO] [stderr]    |                          ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/util.rs:24:36
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn set_bit(target: u16, n: u8, value: bool) -> u16 {
[INFO] [stderr]    |                                    ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_n_flag`
[INFO] [stderr]     --> src/cpu.rs:1145:3
[INFO] [stderr]      |
[INFO] [stderr] 1145 |   fn get_n_flag(&self) -> bool {
[INFO] [stderr]      |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `n_flag`
[INFO] [stderr]     --> src/cpu.rs:1174:3
[INFO] [stderr]      |
[INFO] [stderr] 1174 |   fn n_flag(&self) -> bool {
[INFO] [stderr]      |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `h_flag`
[INFO] [stderr]     --> src/cpu.rs:1178:3
[INFO] [stderr]      |
[INFO] [stderr] 1178 |   fn h_flag(&self) -> bool {
[INFO] [stderr]      |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.07s
[INFO] running `"docker" "inspect" "c49c581c6b59a6d9d9d7a72f39bcc7c4ab12480ef5aaab701e081a6a82be1937"`
[INFO] running `"docker" "rm" "-f" "c49c581c6b59a6d9d9d7a72f39bcc7c4ab12480ef5aaab701e081a6a82be1937"`
[INFO] [stdout] c49c581c6b59a6d9d9d7a72f39bcc7c4ab12480ef5aaab701e081a6a82be1937