[INFO] cloning repository https://github.com/pczora/nihgbe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pczora/nihgbe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpczora%2Fnihgbe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpczora%2Fnihgbe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1d64b844dc26928d42c2ef13f4738ee1fe396006
[INFO] checking pczora/nihgbe against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpczora%2Fnihgbe" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pczora/nihgbe on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pczora/nihgbe
[INFO] finished tweaking git repo https://github.com/pczora/nihgbe
[INFO] tweaked toml for git repo https://github.com/pczora/nihgbe written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/pczora/nihgbe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sdl2 v0.34.5
[INFO] [stderr]   Downloaded sdl2-sys v0.34.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b474d0c13a2156617430d69cb525a079e28328faf2dd38ee79fe45c48bb5f09
[INFO] running `Command { std: "docker" "start" "-a" "5b474d0c13a2156617430d69cb525a079e28328faf2dd38ee79fe45c48bb5f09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b474d0c13a2156617430d69cb525a079e28328faf2dd38ee79fe45c48bb5f09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b474d0c13a2156617430d69cb525a079e28328faf2dd38ee79fe45c48bb5f09", kill_on_drop: false }`
[INFO] [stdout] 5b474d0c13a2156617430d69cb525a079e28328faf2dd38ee79fe45c48bb5f09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a50b9e0cd59c11cf522500669f3fd22231a94ae4dbe8dfbad90080beb00838cc
[INFO] running `Command { std: "docker" "start" "-a" "a50b9e0cd59c11cf522500669f3fd22231a94ae4dbe8dfbad90080beb00838cc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling sdl2 v0.34.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling sdl2-sys v0.34.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking nihgbe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::cpu::CPU`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::cpu::CPU;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::mem::Mem`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::mem::Mem;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::cpu`
[INFO] [stdout]  --> src/debug.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::cpu;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::cpu::CPU`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::cpu::CPU;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::mem::Mem`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::mem::Mem;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::cpu`
[INFO] [stdout]  --> src/debug.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::cpu;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vram_addr`
[INFO] [stdout]   --> src/ppu.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 let vram_addr = 0x8000;
[INFO] [stdout]    |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vram_addr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tile_offset`
[INFO] [stdout]   --> src/ppu.rs:35:25
[INFO] [stdout]    |
[INFO] [stdout] 35 |                     let tile_offset = mem.read(tile_offset_addr);
[INFO] [stdout]    |                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tile_offset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vram_addr`
[INFO] [stdout]   --> src/ppu.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 let vram_addr = 0x8000;
[INFO] [stdout]    |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vram_addr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tile_offset`
[INFO] [stdout]   --> src/ppu.rs:35:25
[INFO] [stdout]    |
[INFO] [stdout] 35 |                     let tile_offset = mem.read(tile_offset_addr);
[INFO] [stdout]    |                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tile_offset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HALFCARRY_FLAG`
[INFO] [stdout]   --> src/cpu.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const HALFCARRY_FLAG: u8 = 0b00100000;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CPU_FREQUENCY_HZ`
[INFO] [stdout]   --> src/cpu.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | const CPU_FREQUENCY_HZ: i32 = 4_194_304;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dec_16bit_register`
[INFO] [stdout]    --> src/cpu.rs:500:8
[INFO] [stdout]     |
[INFO] [stdout] 500 |     fn dec_16bit_register(&self, reg: &Registers) -> CPU {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_subtract`
[INFO] [stdout]    --> src/cpu.rs:576:8
[INFO] [stdout]     |
[INFO] [stdout] 576 |     fn get_subtract(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `EMPTY_UNUSABLE_0_START`
[INFO] [stdout]  --> src/mem.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const EMPTY_UNUSABLE_0_START: u16 = 0xfea0;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_range`
[INFO] [stdout]   --> src/mem.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn read_range(&self, range: std::ops::Range<u16>) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HALFCARRY_FLAG`
[INFO] [stdout]   --> src/cpu.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const HALFCARRY_FLAG: u8 = 0b00100000;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CPU_FREQUENCY_HZ`
[INFO] [stdout]   --> src/cpu.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | const CPU_FREQUENCY_HZ: i32 = 4_194_304;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dec_16bit_register`
[INFO] [stdout]    --> src/cpu.rs:500:8
[INFO] [stdout]     |
[INFO] [stdout] 500 |     fn dec_16bit_register(&self, reg: &Registers) -> CPU {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_subtract`
[INFO] [stdout]    --> src/cpu.rs:576:8
[INFO] [stdout]     |
[INFO] [stdout] 576 |     fn get_subtract(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `EMPTY_UNUSABLE_0_START`
[INFO] [stdout]  --> src/mem.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const EMPTY_UNUSABLE_0_START: u16 = 0xfea0;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_range`
[INFO] [stdout]   --> src/mem.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn read_range(&self, range: std::ops::Range<u16>) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_high_byte`
[INFO] [stdout]   --> src/registers.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn set_high_byte(&self, byte: u8) -> Register {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_low_byte`
[INFO] [stdout]   --> src/registers.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn set_low_byte(&self, byte: u8) -> Register {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_16bit_value`
[INFO] [stdout]   --> src/registers.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn set_16bit_value(&self, bytes: u16) -> Register {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AF`
[INFO] [stdout]   --> src/registers.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     AF,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TITLE_START`
[INFO] [stdout]   --> src/main.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | const TITLE_START: u16 = 0x0134;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TITLE_END`
[INFO] [stdout]   --> src/main.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | const TITLE_END: u16 = 0x0143;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_title`
[INFO] [stdout]   --> src/main.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn parse_title(mem: &mem::Mem) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_high_byte`
[INFO] [stdout]   --> src/registers.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn set_high_byte(&self, byte: u8) -> Register {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_low_byte`
[INFO] [stdout]   --> src/registers.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn set_low_byte(&self, byte: u8) -> Register {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_16bit_value`
[INFO] [stdout]   --> src/registers.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn set_16bit_value(&self, bytes: u16) -> Register {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AF`
[INFO] [stdout]   --> src/registers.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     AF,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TITLE_START`
[INFO] [stdout]   --> src/main.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | const TITLE_START: u16 = 0x0134;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TITLE_END`
[INFO] [stdout]   --> src/main.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | const TITLE_END: u16 = 0x0143;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_title`
[INFO] [stdout]   --> src/main.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn parse_title(mem: &mem::Mem) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.98s
[INFO] running `Command { std: "docker" "inspect" "a50b9e0cd59c11cf522500669f3fd22231a94ae4dbe8dfbad90080beb00838cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a50b9e0cd59c11cf522500669f3fd22231a94ae4dbe8dfbad90080beb00838cc", kill_on_drop: false }`
[INFO] [stdout] a50b9e0cd59c11cf522500669f3fd22231a94ae4dbe8dfbad90080beb00838cc