[INFO] updating cached repository aleozlx/piston-gui
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/aleozlx/piston-gui
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/aleozlx/piston-gui" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/aleozlx/piston-gui"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/aleozlx/piston-gui'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aleozlx/piston-gui" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/aleozlx/piston-gui"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/aleozlx/piston-gui'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ecdf540ff4411f392b1960020de0ff48a27a6ae4
[INFO] sha for GitHub repo aleozlx/piston-gui: ecdf540ff4411f392b1960020de0ff48a27a6ae4
[INFO] validating manifest of aleozlx/piston-gui on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of aleozlx/piston-gui on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing aleozlx/piston-gui
[INFO] finished frobbing aleozlx/piston-gui
[INFO] frobbed toml for aleozlx/piston-gui written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/aleozlx/piston-gui/Cargo.toml
[INFO] started frobbing aleozlx/piston-gui
[INFO] finished frobbing aleozlx/piston-gui
[INFO] frobbed toml for aleozlx/piston-gui written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/aleozlx/piston-gui/Cargo.toml
[INFO] crate aleozlx/piston-gui already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking aleozlx/piston-gui against try#99a7498759a22b5684caf798a98b7e90ad9d2443 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-4/try#99a7498759a22b5684caf798a98b7e90ad9d2443:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/aleozlx/piston-gui:/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" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] bc50323e3cc67c9e47ea0d21f8b9c2029f39d90f8f4d2350e3c53e815e3c14fb
[INFO] running `"docker" "start" "-a" "bc50323e3cc67c9e47ea0d21f8b9c2029f39d90f8f4d2350e3c53e815e3c14fb"`
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]    Compiling libz-sys v1.0.18
[INFO] [stderr]     Checking x11-dl v2.18.1
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking pistoncore-input v0.21.0
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking rusttype v0.5.2
[INFO] [stderr]     Checking nalgebra v0.13.1
[INFO] [stderr]     Checking gfx_core v0.8.2
[INFO] [stderr]     Checking env_logger v0.5.11
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking flate2 v1.0.2
[INFO] [stderr]     Checking quickcheck v0.6.2
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking pistoncore-window v0.32.0
[INFO] [stderr]     Checking piston-ai_behavior v0.24.0
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]    Compiling glutin v0.14.0
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]     Checking winit v0.12.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.37.0
[INFO] [stderr]     Checking piston2d-sprite v0.45.0
[INFO] [stderr]     Checking piston v0.37.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.47.0
[INFO] [stderr]     Checking gfx v0.17.1
[INFO] [stderr]     Checking gfx_device_gl v0.15.3
[INFO] [stderr] warning[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/nalgebra-0.13.1/src/core/cg.rs:255:44
[INFO] [stderr]     |
[INFO] [stderr] 255 |                 self[(j, i)] += shift[j] * self[(D::dim() - 1, i)];
[INFO] [stderr]     |                 ---------------------------^^^^-------------------
[INFO] [stderr]     |                 |                          |
[INFO] [stderr]     |                 |                          immutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow later used here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr] 
[INFO] [stderr]     Checking piston-gfx_texture v0.32.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.51.0
[INFO] [stderr]     Checking imageproc v0.15.0
[INFO] [stderr]     Checking piston_window v0.80.0
[INFO] [stderr]     Checking piston-gui v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 56s
[INFO] running `"docker" "inspect" "bc50323e3cc67c9e47ea0d21f8b9c2029f39d90f8f4d2350e3c53e815e3c14fb"`
[INFO] running `"docker" "rm" "-f" "bc50323e3cc67c9e47ea0d21f8b9c2029f39d90f8f4d2350e3c53e815e3c14fb"`
[INFO] [stdout] bc50323e3cc67c9e47ea0d21f8b9c2029f39d90f8f4d2350e3c53e815e3c14fb