[INFO] updating cached repository jonas-schievink/chip-8
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jonas-schievink/chip-8
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jonas-schievink/chip-8" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/jonas-schievink/chip-8"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/jonas-schievink/chip-8'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jonas-schievink/chip-8" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/jonas-schievink/chip-8"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/jonas-schievink/chip-8'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 71410220ef5cce507677bce8f3c1cc2f2bba0b9c
[INFO] sha for GitHub repo jonas-schievink/chip-8: 71410220ef5cce507677bce8f3c1cc2f2bba0b9c
[INFO] validating manifest of jonas-schievink/chip-8 on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jonas-schievink/chip-8 on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jonas-schievink/chip-8
[INFO] finished frobbing jonas-schievink/chip-8
[INFO] frobbed toml for jonas-schievink/chip-8 written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/jonas-schievink/chip-8/Cargo.toml
[INFO] started frobbing jonas-schievink/chip-8
[INFO] finished frobbing jonas-schievink/chip-8
[INFO] frobbed toml for jonas-schievink/chip-8 written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/jonas-schievink/chip-8/Cargo.toml
[INFO] crate jonas-schievink/chip-8 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jonas-schievink/chip-8 against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-2/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/jonas-schievink/chip-8:/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1c6bc2dde675c3a1c28f02ce1c1c1ec12478555a133465fb14cd5411f2dbb5d1
[INFO] running `"docker" "start" "-a" "1c6bc2dde675c3a1c28f02ce1c1c1ec12478555a133465fb14cd5411f2dbb5d1"`
[INFO] [stderr]     Checking libc v0.2.12
[INFO] [stderr]     Checking regex-syntax v0.3.3
[INFO] [stderr]     Checking ansi_term v0.7.2
[INFO] [stderr]     Checking enum-set v0.0.6
[INFO] [stderr]     Checking fnv v1.0.2
[INFO] [stderr]    Compiling minifb v0.7.1
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking dylib v0.0.1
[INFO] [stderr]     Checking fs2 v0.2.5
[INFO] [stderr]     Checking time v0.1.35
[INFO] [stderr]     Checking clap v2.6.0
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]     Checking x11-dl v2.2.1
[INFO] [stderr]     Checking thread_local v0.2.6
[INFO] [stderr]     Checking memmap v0.4.0
[INFO] [stderr]     Checking aho-corasick v0.5.2
[INFO] [stderr]     Checking regex v0.1.71
[INFO] [stderr]     Checking env_logger v0.3.3
[INFO] [stderr]     Checking chip-8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ext.rs:152:17
[INFO] [stderr]     |
[INFO] [stderr] 152 |             let mut pixref = &mut state.fb[y_total * 64 + x_total];
[INFO] [stderr]     |                 ----^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ext.rs:152:17
[INFO] [stderr]     |
[INFO] [stderr] 152 |             let mut pixref = &mut state.fb[y_total * 64 + x_total];
[INFO] [stderr]     |                 ----^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.47s
[INFO] running `"docker" "inspect" "1c6bc2dde675c3a1c28f02ce1c1c1ec12478555a133465fb14cd5411f2dbb5d1"`
[INFO] running `"docker" "rm" "-f" "1c6bc2dde675c3a1c28f02ce1c1c1ec12478555a133465fb14cd5411f2dbb5d1"`
[INFO] [stdout] 1c6bc2dde675c3a1c28f02ce1c1c1ec12478555a133465fb14cd5411f2dbb5d1