[INFO] updating cached repository Osspial/winit-cube-rotate
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Osspial/winit-cube-rotate
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Osspial/winit-cube-rotate" "work/ex/beta-1.38-1/sources/1.37.0/gh/Osspial/winit-cube-rotate"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Osspial/winit-cube-rotate'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Osspial/winit-cube-rotate" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Osspial/winit-cube-rotate"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Osspial/winit-cube-rotate'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 38231b27372aca40dcc79b27c5d50e790c123ea7
[INFO] sha for GitHub repo Osspial/winit-cube-rotate: 38231b27372aca40dcc79b27c5d50e790c123ea7
[INFO] validating manifest of Osspial/winit-cube-rotate on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Osspial/winit-cube-rotate on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Osspial/winit-cube-rotate
[INFO] finished frobbing Osspial/winit-cube-rotate
[INFO] frobbed toml for Osspial/winit-cube-rotate written to work/ex/beta-1.38-1/sources/1.37.0/gh/Osspial/winit-cube-rotate/Cargo.toml
[INFO] started frobbing Osspial/winit-cube-rotate
[INFO] finished frobbing Osspial/winit-cube-rotate
[INFO] frobbed toml for Osspial/winit-cube-rotate written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Osspial/winit-cube-rotate/Cargo.toml
[INFO] crate Osspial/winit-cube-rotate already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Osspial/winit-cube-rotate against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Osspial/winit-cube-rotate:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 02cff9c2ab13ae45a9e9f5cc255fea77f3b689ed01f98e92d90831197609b2a7
[INFO] running `"docker" "start" "-a" "02cff9c2ab13ae45a9e9f5cc255fea77f3b689ed01f98e92d90831197609b2a7"`
[INFO] [stderr]    Compiling syn v0.15.38
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling wayland-scanner v0.23.5
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling gl_generator v0.7.0
[INFO] [stderr]    Compiling gullery_macros v0.1.0 (https://github.com/Osspial/gullery.git#56902eea)
[INFO] [stderr]    Compiling mio-extras v2.0.5
[INFO] [stderr]    Compiling wayland-sys v0.23.5
[INFO] [stderr]    Compiling rusttype v0.7.7
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.5
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.3
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr]    Compiling gullery_bindings v0.1.0 (https://github.com/Osspial/gullery.git#56902eea)
[INFO] [stderr]    Compiling wayland-client v0.23.5
[INFO] [stderr]    Compiling wayland-protocols v0.23.5
[INFO] [stderr]    Compiling wayland-commons v0.23.5
[INFO] [stderr]    Compiling calloop v0.4.4
[INFO] [stderr]    Compiling cgmath-geometry v0.1.0 (https://github.com/Osspial/cgmath-geometry.git#4787ef75)
[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] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> /opt/crater/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" "02cff9c2ab13ae45a9e9f5cc255fea77f3b689ed01f98e92d90831197609b2a7"`
[INFO] running `"docker" "rm" "-f" "02cff9c2ab13ae45a9e9f5cc255fea77f3b689ed01f98e92d90831197609b2a7"`
[INFO] [stdout] 02cff9c2ab13ae45a9e9f5cc255fea77f3b689ed01f98e92d90831197609b2a7