[INFO] updating cached repository squablyScientist/chip8-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/squablyScientist/chip8-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/squablyScientist/chip8-rust" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/squablyScientist/chip8-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/squablyScientist/chip8-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/squablyScientist/chip8-rust" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/squablyScientist/chip8-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/squablyScientist/chip8-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 20a3b6f01b05b4f4e44d4695942b21cbdbe04a62
[INFO] sha for GitHub repo squablyScientist/chip8-rust: 20a3b6f01b05b4f4e44d4695942b21cbdbe04a62
[INFO] validating manifest of squablyScientist/chip8-rust on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of squablyScientist/chip8-rust on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing squablyScientist/chip8-rust
[INFO] finished frobbing squablyScientist/chip8-rust
[INFO] frobbed toml for squablyScientist/chip8-rust written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/squablyScientist/chip8-rust/Cargo.toml
[INFO] started frobbing squablyScientist/chip8-rust
[INFO] finished frobbing squablyScientist/chip8-rust
[INFO] frobbed toml for squablyScientist/chip8-rust written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/squablyScientist/chip8-rust/Cargo.toml
[INFO] crate squablyScientist/chip8-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking squablyScientist/chip8-rust against try#8ec8125bea94852768b56958f05da47666c21ab0 for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-5/try#8ec8125bea94852768b56958f05da47666c21ab0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/squablyScientist/chip8-rust:/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" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4b195e5fba1e3e7c17a275a32b2d082f3490f65fbd7d50584aa5a4ad4b7f351d
[INFO] running `"docker" "start" "-a" "4b195e5fba1e3e7c17a275a32b2d082f3490f65fbd7d50584aa5a4ad4b7f351d"`
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking chip8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `pixel` is never read
[INFO] [stderr]    --> src/cpu.rs:367:25
[INFO] [stderr]     |
[INFO] [stderr] 367 |                 let mut pixel: u8 = 0;
[INFO] [stderr]     |                         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dump_mem`
[INFO] [stderr]   --> src/cpu.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 |     pub fn dump_mem(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dump_reg`
[INFO] [stderr]    --> src/cpu.rs:131:5
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn dump_reg(&self) -> String {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `V` should have a snake case name
[INFO] [stderr]   --> src/cpu.rs:27:10
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub  V: [u8; 16],   
[INFO] [stderr]    |          ^ help: convert the identifier to snake case: `v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `I` should have a snake case name
[INFO] [stderr]   --> src/cpu.rs:30:10
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub  I: u16,        
[INFO] [stderr]    |          ^ help: convert the identifier to snake case: `i`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `pixel` is never read
[INFO] [stderr]    --> src/cpu.rs:367:25
[INFO] [stderr]     |
[INFO] [stderr] 367 |                 let mut pixel: u8 = 0;
[INFO] [stderr]     |                         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dump_mem`
[INFO] [stderr]   --> src/cpu.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 |     pub fn dump_mem(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dump_reg`
[INFO] [stderr]    --> src/cpu.rs:131:5
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn dump_reg(&self) -> String {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `V` should have a snake case name
[INFO] [stderr]   --> src/cpu.rs:27:10
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub  V: [u8; 16],   
[INFO] [stderr]    |          ^ help: convert the identifier to snake case: `v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `I` should have a snake case name
[INFO] [stderr]   --> src/cpu.rs:30:10
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub  I: u16,        
[INFO] [stderr]    |          ^ help: convert the identifier to snake case: `i`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `"docker" "inspect" "4b195e5fba1e3e7c17a275a32b2d082f3490f65fbd7d50584aa5a4ad4b7f351d"`
[INFO] running `"docker" "rm" "-f" "4b195e5fba1e3e7c17a275a32b2d082f3490f65fbd7d50584aa5a4ad4b7f351d"`
[INFO] [stdout] 4b195e5fba1e3e7c17a275a32b2d082f3490f65fbd7d50584aa5a4ad4b7f351d