[INFO] crate amethyst_renderer 0.10.4 is already in cache
[INFO] extracting crate amethyst_renderer 0.10.4 into work/ex/beta-1.38-1/sources/1.37.0/reg/amethyst_renderer/0.10.4
[INFO] extracting crate amethyst_renderer 0.10.4 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/amethyst_renderer/0.10.4
[INFO] validating manifest of amethyst_renderer-0.10.4 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 amethyst_renderer-0.10.4 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 amethyst_renderer-0.10.4
[INFO] finished frobbing amethyst_renderer-0.10.4
[INFO] frobbed toml for amethyst_renderer-0.10.4 written to work/ex/beta-1.38-1/sources/1.37.0/reg/amethyst_renderer/0.10.4/Cargo.toml
[INFO] started frobbing amethyst_renderer-0.10.4
[INFO] finished frobbing amethyst_renderer-0.10.4
[INFO] frobbed toml for amethyst_renderer-0.10.4 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/amethyst_renderer/0.10.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 amethyst_renderer-0.10.4 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/amethyst_renderer/0.10.4:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 9008908af0fb9ac048c930b15c5b60004d09290baa98c78a348d25e960c5d60d
[INFO] running `"docker" "start" "-a" "9008908af0fb9ac048c930b15c5b60004d09290baa98c78a348d25e960c5d60d"`
[INFO] [stderr]    Compiling nonzero_signed v1.0.3
[INFO] [stderr]    Compiling atom v0.3.5
[INFO] [stderr]    Compiling shrev v1.1.1
[INFO] [stderr]    Compiling tuple_utils v0.2.0
[INFO] [stderr]    Compiling mint v0.5.1
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling hetseq v0.2.0
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.6.1
[INFO] [stderr]    Compiling generic-array v0.11.1
[INFO] [stderr]    Compiling gfx_macros v0.2.1
[INFO] [stderr]    Compiling glutin v0.19.0
[INFO] [stderr]    Compiling shred-derive v0.5.1
[INFO] [stderr]    Compiling amethyst_derive v0.3.0
[INFO] [stderr]    Compiling rusttype v0.7.7
[INFO] [stderr]    Compiling crossbeam-deque v0.5.2
[INFO] [stderr]    Compiling smallvec v0.6.10
[INFO] [stderr]    Compiling draw_state v0.8.0
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling alga v0.7.2
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling smithay-client-toolkit v0.4.6
[INFO] [stderr]    Compiling gfx_core v0.8.3
[INFO] [stderr]    Compiling hibitset v0.5.4
[INFO] [stderr]    Compiling shred v0.7.2
[INFO] [stderr]    Compiling crossbeam-channel v0.2.6
[INFO] [stderr]    Compiling genmesh v0.6.2
[INFO] [stderr]    Compiling image v0.20.1
[INFO] [stderr]    Compiling nalgebra v0.16.13
[INFO] [stderr]    Compiling winit v0.18.1
[INFO] [stderr]    Compiling crossbeam v0.4.1
[INFO] [stderr]    Compiling specs v0.14.3
[INFO] [stderr]    Compiling glsl-layout-derive v0.1.1
[INFO] [stderr]    Compiling specs-hierarchy v0.3.1
[INFO] [stderr]    Compiling gfx_device_gl v0.15.5
[INFO] [stderr]    Compiling glsl-layout v0.1.1
[INFO] [stderr]    Compiling gfx v0.17.1
[INFO] [stderr]    Compiling gfx_window_glutin v0.27.0
[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-0.16.13/src/base/cg.rs:291:44
[INFO] [stderr]     |
[INFO] [stderr] 291 |                 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]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]    Compiling amethyst_core v0.5.0
[INFO] [stderr]    Compiling amethyst_assets v0.6.0
[INFO] [stderr] error[E0283]: type annotations required: cannot resolve `std::string::String: std::convert::AsRef<_>`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/amethyst_assets-0.6.0/src/prefab/mod.rs:372:22
[INFO] [stderr]     |
[INFO] [stderr] 372 |                 name.as_ref(),
[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 E0283`.
[INFO] [stderr] error: Could not compile `amethyst_assets`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "9008908af0fb9ac048c930b15c5b60004d09290baa98c78a348d25e960c5d60d"`
[INFO] running `"docker" "rm" "-f" "9008908af0fb9ac048c930b15c5b60004d09290baa98c78a348d25e960c5d60d"`
[INFO] [stdout] 9008908af0fb9ac048c930b15c5b60004d09290baa98c78a348d25e960c5d60d