Dec 02 17:04:37.813 INFO testing shadiertoy-0.1.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 17:04:37.813 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 17:04:38.188 INFO [stdout] 3d7370d48f1e5d46770d5c358cba40eb299ea548f60e993b4723fc77ffbfccd3
Dec 02 17:04:38.195 INFO running `"docker" "start" "-a" "3d7370d48f1e5d46770d5c358cba40eb299ea548f60e993b4723fc77ffbfccd3"`
Dec 02 17:04:39.217 INFO [stderr] usermod: no changes
Dec 02 17:04:39.475 INFO [stderr]    Compiling glutin v0.16.0
Dec 02 17:04:39.475 INFO [stderr]    Compiling syn v0.15.22
Dec 02 17:04:39.475 INFO [stderr]    Compiling parking_lot_core v0.2.14
Dec 02 17:04:39.475 INFO [stderr]    Compiling smithay-client-toolkit v0.2.6
Dec 02 17:04:44.911 INFO [stderr]    Compiling parking_lot v0.5.5
Dec 02 17:04:56.020 INFO [stderr]    Compiling winit v0.15.1
Dec 02 17:05:37.168 INFO [stderr]    Compiling derivative v1.0.2
Dec 02 17:05:37.168 INFO [stderr]    Compiling num-derive v0.2.3
Dec 02 17:05:58.385 INFO [stderr]    Compiling image v0.19.0
Dec 02 17:05:58.484 INFO [stderr]    Compiling gfx_core v0.8.3
Dec 02 17:06:40.362 INFO [stderr]    Compiling gfx_device_gl v0.15.3
Dec 02 17:06:40.362 INFO [stderr]    Compiling gfx v0.17.1
Dec 02 17:06:45.787 INFO [stderr]    Compiling gfx_window_glutin v0.24.0
Dec 02 17:06:50.155 INFO [stderr]    Compiling shadiertoy v0.1.0 (/source)
Dec 02 17:06:54.618 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 17:06:54.618 INFO [stderr]  --> src/lib.rs:2:1
Dec 02 17:06:54.618 INFO [stderr]   |
Dec 02 17:06:54.618 INFO [stderr] 2 | #![feature(use_extern_macros)]
Dec 02 17:06:54.618 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 17:06:54.618 INFO [stderr] 
Dec 02 17:06:54.618 INFO [stderr] error: aborting due to previous error
Dec 02 17:06:54.618 INFO [stderr] 
Dec 02 17:06:54.618 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 17:06:54.643 INFO [stderr] error: Could not compile `shadiertoy`.
Dec 02 17:06:54.643 INFO [stderr] 
Dec 02 17:06:54.643 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 17:06:54.643 INFO [stderr] su: No module specific data is present
Dec 02 17:06:55.411 INFO running `"docker" "inspect" "3d7370d48f1e5d46770d5c358cba40eb299ea548f60e993b4723fc77ffbfccd3"`
Dec 02 17:06:55.597 INFO running `"docker" "rm" "-f" "3d7370d48f1e5d46770d5c358cba40eb299ea548f60e993b4723fc77ffbfccd3"`
Dec 02 17:06:55.785 INFO [stdout] 3d7370d48f1e5d46770d5c358cba40eb299ea548f60e993b4723fc77ffbfccd3