[INFO] updating cached repository https://github.com/Osspial/winit-cube-rotate
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 38231b27372aca40dcc79b27c5d50e790c123ea7
[INFO] testing Osspial/winit-cube-rotate against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FOsspial%2Fwinit-cube-rotate" "work/builds/worker-10/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Osspial/winit-cube-rotate on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Osspial/winit-cube-rotate
[INFO] finished tweaking git repo https://github.com/Osspial/winit-cube-rotate
[INFO] tweaked toml for git repo https://github.com/Osspial/winit-cube-rotate written to work/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/Osspial/winit-cube-rotate already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 73a904b3758617adf7b1eca822081849155cfd08f9a2e72c0e2967b3148a38f7
[INFO] running `"docker" "start" "-a" "73a904b3758617adf7b1eca822081849155cfd08f9a2e72c0e2967b3148a38f7"`
[INFO] [stderr]    Compiling syn v0.15.38
[INFO] [stderr]    Compiling downcast-rs v1.0.4
[INFO] [stderr]    Compiling walkdir v2.2.8
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling wayland-scanner v0.23.5
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]    Compiling stb_truetype v0.2.6
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling line_drawing v0.7.0
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling gullery_macros v0.1.0 (https://github.com/Osspial/gullery.git#56902eea)
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling wayland-sys v0.23.5
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling rusttype v0.7.7
[INFO] [stderr]    Compiling gl_generator v0.7.0
[INFO] [stderr]    Compiling mio-extras v2.0.5
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.3
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.5
[INFO] [stderr]    Compiling wayland-client v0.23.5
[INFO] [stderr]    Compiling wayland-protocols v0.23.5
[INFO] [stderr]    Compiling gullery_bindings v0.1.0 (https://github.com/Osspial/gullery.git#56902eea)
[INFO] [stderr]    Compiling cgmath-geometry v0.1.0 (https://github.com/Osspial/cgmath-geometry.git#4787ef75)
[INFO] [stderr]    Compiling wayland-commons v0.23.5
[INFO] [stderr]    Compiling calloop v0.4.4
[INFO] [stderr]    Compiling derivative v1.0.2
[INFO] [stderr]    Compiling derive_more v0.13.0
[INFO] [stderr]    Compiling smithay-client-toolkit v0.6.2
[INFO] [stderr]    Compiling gullery v0.1.0 (https://github.com/Osspial/gullery.git#56902eea)
[INFO] [stderr]    Compiling winit v0.20.0-alpha1
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/gullery-54a8768087ce9e24/56902ee/src/lib.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | #![feature(never_type)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `gullery`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "73a904b3758617adf7b1eca822081849155cfd08f9a2e72c0e2967b3148a38f7"`
[INFO] running `"docker" "rm" "-f" "73a904b3758617adf7b1eca822081849155cfd08f9a2e72c0e2967b3148a38f7"`
[INFO] [stdout] 73a904b3758617adf7b1eca822081849155cfd08f9a2e72c0e2967b3148a38f7