[INFO] updating cached repository https://github.com/northerner/rchip
[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] 934301af3f89df30640b99b327797704fdb3eec4
[INFO] checking northerner/rchip against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnortherner%2Frchip" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/northerner/rchip on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/northerner/rchip
[INFO] finished tweaking git repo https://github.com/northerner/rchip
[INFO] tweaked toml for git repo https://github.com/northerner/rchip written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/northerner/rchip already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1f285ae4e60001456411d16d5d73b873db09e8dfd2fc1a8b5c7c63ef7d896884
[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" "1f285ae4e60001456411d16d5d73b873db09e8dfd2fc1a8b5c7c63ef7d896884"`
[INFO] [stderr]     Checking rand_core v0.1.0-pre.0
[INFO] [stderr]     Checking rand v0.5.0-pre.0
[INFO] [stderr]     Checking rchip v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Point`, `Rect`
[INFO] [stderr]   --> src/main.rs:10:18
[INFO] [stderr]    |
[INFO] [stderr] 10 | use sdl2::rect::{Point, Rect};
[INFO] [stderr]    |                  ^^^^^  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:17:16
[INFO] [stderr]    |
[INFO] [stderr] 17 |             if (row & (1 << column) != 0) {
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Point`, `Rect`
[INFO] [stderr]   --> src/main.rs:10:18
[INFO] [stderr]    |
[INFO] [stderr] 10 | use sdl2::rect::{Point, Rect};
[INFO] [stderr]    |                  ^^^^^  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:17:16
[INFO] [stderr]    |
[INFO] [stderr] 17 |             if (row & (1 << column) != 0) {
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/main.rs:163:34
[INFO] [stderr]     |
[INFO] [stderr] 163 | ...                   Some(x) => registers[0xF as usize] = 0x01,
[INFO] [stderr]     |                            ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/main.rs:173:34
[INFO] [stderr]     |
[INFO] [stderr] 173 | ...                   Some(x) => registers[0xF as usize] = 0x00,
[INFO] [stderr]     |                            ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/main.rs:189:34
[INFO] [stderr]     |
[INFO] [stderr] 189 | ...                   Some(x) => registers[0xF as usize] = 0x00,
[INFO] [stderr]     |                            ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/main.rs:232:21
[INFO] [stderr]     |
[INFO] [stderr] 232 |                 let y = registers[((current_opcode & 0x00F0) >> 4) as usize];
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line_pixels`
[INFO] [stderr]    --> src/main.rs:236:25
[INFO] [stderr]     |
[INFO] [stderr] 236 |                     let line_pixels = memory[(index_register + line as u16) as usize];
[INFO] [stderr]     |                         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_line_pixels`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     rom.read_to_end(&mut rom_buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/main.rs:163:34
[INFO] [stderr]     |
[INFO] [stderr] 163 | ...                   Some(x) => registers[0xF as usize] = 0x01,
[INFO] [stderr]     |                            ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/main.rs:173:34
[INFO] [stderr]     |
[INFO] [stderr] 173 | ...                   Some(x) => registers[0xF as usize] = 0x00,
[INFO] [stderr]     |                            ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/main.rs:189:34
[INFO] [stderr]     |
[INFO] [stderr] 189 | ...                   Some(x) => registers[0xF as usize] = 0x00,
[INFO] [stderr]     |                            ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/main.rs:232:21
[INFO] [stderr]     |
[INFO] [stderr] 232 |                 let y = registers[((current_opcode & 0x00F0) >> 4) as usize];
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line_pixels`
[INFO] [stderr]    --> src/main.rs:236:25
[INFO] [stderr]     |
[INFO] [stderr] 236 |                     let line_pixels = memory[(index_register + line as u16) as usize];
[INFO] [stderr]     |                         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_line_pixels`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     rom.read_to_end(&mut rom_buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.46s
[INFO] running `"docker" "inspect" "1f285ae4e60001456411d16d5d73b873db09e8dfd2fc1a8b5c7c63ef7d896884"`
[INFO] running `"docker" "rm" "-f" "1f285ae4e60001456411d16d5d73b873db09e8dfd2fc1a8b5c7c63ef7d896884"`
[INFO] [stdout] 1f285ae4e60001456411d16d5d73b873db09e8dfd2fc1a8b5c7c63ef7d896884