[INFO] updating cached repository twetzel59/luminance_procedural_world
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/twetzel59/luminance_procedural_world
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/twetzel59/luminance_procedural_world" "work/ex/beta-1.38-1/sources/1.37.0/gh/twetzel59/luminance_procedural_world"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/twetzel59/luminance_procedural_world'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/twetzel59/luminance_procedural_world" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/twetzel59/luminance_procedural_world"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/twetzel59/luminance_procedural_world'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 29880919bca6f10480ca73f8bd2605f37c7d2a2d
[INFO] sha for GitHub repo twetzel59/luminance_procedural_world: 29880919bca6f10480ca73f8bd2605f37c7d2a2d
[INFO] validating manifest of twetzel59/luminance_procedural_world 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 twetzel59/luminance_procedural_world 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 twetzel59/luminance_procedural_world
[INFO] finished frobbing twetzel59/luminance_procedural_world
[INFO] frobbed toml for twetzel59/luminance_procedural_world written to work/ex/beta-1.38-1/sources/1.37.0/gh/twetzel59/luminance_procedural_world/Cargo.toml
[INFO] started frobbing twetzel59/luminance_procedural_world
[INFO] finished frobbing twetzel59/luminance_procedural_world
[INFO] frobbed toml for twetzel59/luminance_procedural_world written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/twetzel59/luminance_procedural_world/Cargo.toml
[INFO] crate twetzel59/luminance_procedural_world 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 twetzel59/luminance_procedural_world 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-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/twetzel59/luminance_procedural_world:/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] e405864d69d593193813b2377caa93861c9636e65f7d8ffbb804ef6e250359ba
[INFO] running `"docker" "start" "-a" "e405864d69d593193813b2377caa93861c9636e65f7d8ffbb804ef6e250359ba"`
[INFO] [stderr]    Compiling bitflags v1.0.0
[INFO] [stderr]    Compiling khronos_api v2.0.0
[INFO] [stderr]    Compiling luminance-windowing v0.1.1
[INFO] [stderr]    Compiling num-integer v0.1.35
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling cmake v0.1.27
[INFO] [stderr]    Compiling num-complex v0.1.40
[INFO] [stderr]    Compiling inflate v0.3.3
[INFO] [stderr]    Compiling deflate v0.7.17
[INFO] [stderr]    Compiling noise v0.4.1
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling num-bigint v0.1.40
[INFO] [stderr]    Compiling num-iter v0.1.34
[INFO] [stderr]    Compiling glfw-sys v3.2.2
[INFO] [stderr]    Compiling gl_generator v0.6.1
[INFO] [stderr]    Compiling num-rational v0.1.40
[INFO] [stderr]    Compiling png v0.11.0
[INFO] [stderr]    Compiling num v0.1.40
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]    Compiling glfw v0.16.0
[INFO] [stderr]    Compiling luminance v0.24.0
[INFO] [stderr]    Compiling luminance-glfw v0.4.1 (https://github.com/twetzel59/luminance-glfw.git#49b154ce)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/luminance-0.24.0/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(const_fn)]
[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 `luminance`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "e405864d69d593193813b2377caa93861c9636e65f7d8ffbb804ef6e250359ba"`
[INFO] running `"docker" "rm" "-f" "e405864d69d593193813b2377caa93861c9636e65f7d8ffbb804ef6e250359ba"`
[INFO] [stdout] e405864d69d593193813b2377caa93861c9636e65f7d8ffbb804ef6e250359ba