[INFO] updating cached repository HooniusDev/lokathor_rl_tutorial
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/HooniusDev/lokathor_rl_tutorial
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/HooniusDev/lokathor_rl_tutorial" "work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/gh/HooniusDev/lokathor_rl_tutorial"`
[INFO] [stderr] Cloning into 'work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/gh/HooniusDev/lokathor_rl_tutorial'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/HooniusDev/lokathor_rl_tutorial" "work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/gh/HooniusDev/lokathor_rl_tutorial"`
[INFO] [stderr] Cloning into 'work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/gh/HooniusDev/lokathor_rl_tutorial'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 736371ebf60a5fd1dbc1b7d35abf603705441a08
[INFO] sha for GitHub repo HooniusDev/lokathor_rl_tutorial: 736371ebf60a5fd1dbc1b7d35abf603705441a08
[INFO] validating manifest of HooniusDev/lokathor_rl_tutorial on toolchain master#2bde39b8edce6463e1c37f8a8082a875e7b536b1
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of HooniusDev/lokathor_rl_tutorial on toolchain try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0d8b5d1f16bab9e975695518ff8705bdab9fe94c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing HooniusDev/lokathor_rl_tutorial
[INFO] finished frobbing HooniusDev/lokathor_rl_tutorial
[INFO] frobbed toml for HooniusDev/lokathor_rl_tutorial written to work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/gh/HooniusDev/lokathor_rl_tutorial/Cargo.toml
[INFO] started frobbing HooniusDev/lokathor_rl_tutorial
[INFO] finished frobbing HooniusDev/lokathor_rl_tutorial
[INFO] frobbed toml for HooniusDev/lokathor_rl_tutorial written to work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/gh/HooniusDev/lokathor_rl_tutorial/Cargo.toml
[INFO] crate HooniusDev/lokathor_rl_tutorial has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0d8b5d1f16bab9e975695518ff8705bdab9fe94c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking HooniusDev/lokathor_rl_tutorial against master#2bde39b8edce6463e1c37f8a8082a875e7b536b1 for pr-57483
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57483/worker-0/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/gh/HooniusDev/lokathor_rl_tutorial:/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" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c381dd74008ea9ea763de2cec875c2c92784c5d9168aa8eb6fa7f8ce5f675d0d
[INFO] running `"docker" "start" "-a" "c381dd74008ea9ea763de2cec875c2c92784c5d9168aa8eb6fa7f8ce5f675d0d"`
[INFO] [stderr]     Checking retro-pixel v0.3.0
[INFO] [stderr]    Compiling glutin v0.15.0
[INFO] [stderr]     Checking winit v0.13.1
[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/retro-pixel-0.3.0/src/lib.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | #![feature(stdsimd)]
[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 `retro-pixel`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "c381dd74008ea9ea763de2cec875c2c92784c5d9168aa8eb6fa7f8ce5f675d0d"`
[INFO] running `"docker" "rm" "-f" "c381dd74008ea9ea763de2cec875c2c92784c5d9168aa8eb6fa7f8ce5f675d0d"`
[INFO] [stdout] c381dd74008ea9ea763de2cec875c2c92784c5d9168aa8eb6fa7f8ce5f675d0d