[INFO] updating cached repository bikefrivolously/chip8
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bikefrivolously/chip8
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bikefrivolously/chip8" "work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/bikefrivolously/chip8"`
[INFO] [stderr] Cloning into 'work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/bikefrivolously/chip8'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bikefrivolously/chip8" "work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/bikefrivolously/chip8"`
[INFO] [stderr] Cloning into 'work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/bikefrivolously/chip8'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1ac2ee9cd476eb32e7260b4c3c74e3f9bdfaf4cd
[INFO] sha for GitHub repo bikefrivolously/chip8: 1ac2ee9cd476eb32e7260b4c3c74e3f9bdfaf4cd
[INFO] validating manifest of bikefrivolously/chip8 on toolchain master#e2f221c75932de7a29845c8d6f1f73536ad00c41
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bikefrivolously/chip8 on toolchain try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bikefrivolously/chip8
[INFO] finished frobbing bikefrivolously/chip8
[INFO] frobbed toml for bikefrivolously/chip8 written to work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/bikefrivolously/chip8/Cargo.toml
[INFO] started frobbing bikefrivolously/chip8
[INFO] finished frobbing bikefrivolously/chip8
[INFO] frobbed toml for bikefrivolously/chip8 written to work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/bikefrivolously/chip8/Cargo.toml
[INFO] crate bikefrivolously/chip8 has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking bikefrivolously/chip8 against master#e2f221c75932de7a29845c8d6f1f73536ad00c41 for pr-57617
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57617/worker-7/master#e2f221c75932de7a29845c8d6f1f73536ad00c41:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/bikefrivolously/chip8:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0e8863a4f690df0123469f139e938b521c8c8a0dfc9912a69e84422d4c290ea7
[INFO] running `"docker" "start" "-a" "0e8863a4f690df0123469f139e938b521c8c8a0dfc9912a69e84422d4c290ea7"`
[INFO] [stderr]     Checking chip8 v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/cpu.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |         for i in 0..100000 {
[INFO] [stderr]    |             ^ help: consider using `_i` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused bitwise operation that must be used
[INFO] [stderr]    --> src/cpu.rs:176:17
[INFO] [stderr]     |
[INFO] [stderr] 176 |                 self.v[x] >> 1;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused bitwise operation that must be used
[INFO] [stderr]    --> src/cpu.rs:190:17
[INFO] [stderr]     |
[INFO] [stderr] 190 |                 self.v[x] << 1;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/cpu.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |         for i in 0..100000 {
[INFO] [stderr]    |             ^ help: consider using `_i` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused bitwise operation that must be used
[INFO] [stderr]    --> src/cpu.rs:176:17
[INFO] [stderr]     |
[INFO] [stderr] 176 |                 self.v[x] >> 1;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused bitwise operation that must be used
[INFO] [stderr]    --> src/cpu.rs:190:17
[INFO] [stderr]     |
[INFO] [stderr] 190 |                 self.v[x] << 1;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "0e8863a4f690df0123469f139e938b521c8c8a0dfc9912a69e84422d4c290ea7"`
[INFO] running `"docker" "rm" "-f" "0e8863a4f690df0123469f139e938b521c8c8a0dfc9912a69e84422d4c290ea7"`
[INFO] [stdout] 0e8863a4f690df0123469f139e938b521c8c8a0dfc9912a69e84422d4c290ea7