[INFO] updating cached repository McGittyHub/cubes-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/McGittyHub/cubes-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/McGittyHub/cubes-rs" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/McGittyHub/cubes-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/McGittyHub/cubes-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/McGittyHub/cubes-rs" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/McGittyHub/cubes-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/McGittyHub/cubes-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4b078a42c3e27afd3107a171f8b7614319817036
[INFO] sha for GitHub repo McGittyHub/cubes-rs: 4b078a42c3e27afd3107a171f8b7614319817036
[INFO] validating manifest of McGittyHub/cubes-rs 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 McGittyHub/cubes-rs 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 McGittyHub/cubes-rs
[INFO] finished frobbing McGittyHub/cubes-rs
[INFO] frobbed toml for McGittyHub/cubes-rs written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/McGittyHub/cubes-rs/Cargo.toml
[INFO] started frobbing McGittyHub/cubes-rs
[INFO] finished frobbing McGittyHub/cubes-rs
[INFO] frobbed toml for McGittyHub/cubes-rs written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/McGittyHub/cubes-rs/Cargo.toml
[INFO] crate McGittyHub/cubes-rs 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 McGittyHub/cubes-rs against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-4/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/McGittyHub/cubes-rs:/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4c1185b9f1d6a8a7e4a22be506292f005f9395141f3bb2c898f393dac0e9e9da
[INFO] running `"docker" "start" "-a" "4c1185b9f1d6a8a7e4a22be506292f005f9395141f3bb2c898f393dac0e9e9da"`
[INFO] [stderr]     Checking noise v0.4.1
[INFO] [stderr]     Checking num-bigint v0.1.41
[INFO] [stderr]     Checking cgmath v0.16.0
[INFO] [stderr]     Checking gfx v0.17.1
[INFO] [stderr]     Checking gfx_window_glutin v0.20.0
[INFO] [stderr]     Checking num-rational v0.1.40
[INFO] [stderr]     Checking num v0.1.41
[INFO] [stderr]     Checking gfx_glyph v0.8.0
[INFO] [stderr]     Checking collision v0.14.0
[INFO] [stderr]     Checking cubes-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `cube_count`
[INFO] [stderr]    --> src/main.rs:368:13
[INFO] [stderr]     |
[INFO] [stderr] 368 |     let mut cube_count = 0;
[INFO] [stderr]     |             ^^^^^^^^^^ help: consider prefixing with an underscore: `_cube_count`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:368:9
[INFO] [stderr]     |
[INFO] [stderr] 368 |     let mut cube_count = 0;
[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: unused variable: `cube_count`
[INFO] [stderr]    --> src/main.rs:368:13
[INFO] [stderr]     |
[INFO] [stderr] 368 |     let mut cube_count = 0;
[INFO] [stderr]     |             ^^^^^^^^^^ help: consider prefixing with an underscore: `_cube_count`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:368:9
[INFO] [stderr]     |
[INFO] [stderr] 368 |     let mut cube_count = 0;
[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: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(conservative_impl_trait)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `entry_and_modify` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(entry_and_modify)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(conservative_impl_trait)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `entry_and_modify` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(entry_and_modify)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.51s
[INFO] running `"docker" "inspect" "4c1185b9f1d6a8a7e4a22be506292f005f9395141f3bb2c898f393dac0e9e9da"`
[INFO] running `"docker" "rm" "-f" "4c1185b9f1d6a8a7e4a22be506292f005f9395141f3bb2c898f393dac0e9e9da"`
[INFO] [stdout] 4c1185b9f1d6a8a7e4a22be506292f005f9395141f3bb2c898f393dac0e9e9da