Dec 02 11:47:39.124 INFO testing virtual-dom-rs-0.3.1 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 11:47:39.124 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 11:47:39.446 INFO [stdout] 9c8779b57cedb7c856a14f31682f8c9a4d61982568b150851d2e700a53bd9f4b
Dec 02 11:47:39.448 INFO running `"docker" "start" "-a" "9c8779b57cedb7c856a14f31682f8c9a4d61982568b150851d2e700a53bd9f4b"`
Dec 02 11:47:40.035 INFO [stderr] usermod: no changes
Dec 02 11:47:40.176 INFO [stderr]    Compiling wasm-bindgen v0.2.28
Dec 02 11:47:40.179 INFO [stderr]    Compiling nom v4.1.1
Dec 02 11:47:40.179 INFO [stderr]    Compiling wasm-bindgen-backend v0.2.28
Dec 02 11:47:43.150 INFO [stderr]    Compiling weedle v0.8.0
Dec 02 11:47:53.643 INFO [stderr]    Compiling wasm-bindgen-macro-support v0.2.28
Dec 02 11:47:58.311 INFO [stderr]    Compiling wasm-bindgen-webidl v0.2.22
Dec 02 11:48:05.999 INFO [stderr]    Compiling wasm-bindgen-macro v0.2.28
Dec 02 11:48:16.047 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 11:48:16.047 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/wasm-bindgen-0.2.28/src/lib.rs:10:34
Dec 02 11:48:16.047 INFO [stderr]    |
Dec 02 11:48:16.047 INFO [stderr] 10 | #![cfg_attr(feature = "nightly", feature(unsize))]
Dec 02 11:48:16.047 INFO [stderr]    |                                  ^^^^^^^^^^^^^^^
Dec 02 11:48:16.047 INFO [stderr] 
Dec 02 11:48:16.067 INFO [stderr] error: aborting due to previous error
Dec 02 11:48:16.067 INFO [stderr] 
Dec 02 11:48:16.067 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 11:48:16.087 INFO [stderr] error: Could not compile `wasm-bindgen`.
Dec 02 11:48:16.087 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 11:48:16.821 INFO [stderr] error: build failed
Dec 02 11:48:16.823 INFO [stderr] su: No module specific data is present
Dec 02 11:48:17.827 INFO running `"docker" "inspect" "9c8779b57cedb7c856a14f31682f8c9a4d61982568b150851d2e700a53bd9f4b"`
Dec 02 11:48:18.053 INFO running `"docker" "rm" "-f" "9c8779b57cedb7c856a14f31682f8c9a4d61982568b150851d2e700a53bd9f4b"`
Dec 02 11:48:18.351 INFO [stdout] 9c8779b57cedb7c856a14f31682f8c9a4d61982568b150851d2e700a53bd9f4b