Dec 02 18:18:04.792 INFO testing rusty-driver-0.1.2 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 18:18:04.792 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 18:18:05.195 INFO [stdout] 36a5cbd1bf6612e4f57a6b8fb7292e1dbdcdbace8456f7fe066a3138a2db566f
Dec 02 18:18:05.199 INFO running `"docker" "start" "-a" "36a5cbd1bf6612e4f57a6b8fb7292e1dbdcdbace8456f7fe066a3138a2db566f"`
Dec 02 18:18:06.267 INFO [stderr] usermod: no changes
Dec 02 18:18:06.647 INFO [stderr]    Compiling futures-await-async-macro v0.1.4
Dec 02 18:18:06.651 INFO [stderr]    Compiling webdriver v0.36.0
Dec 02 18:18:11.419 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 18:18:11.419 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-await-async-macro-0.1.4/src/lib.rs:12:1
Dec 02 18:18:11.419 INFO [stderr]    |
Dec 02 18:18:11.419 INFO [stderr] 12 | #![feature(proc_macro)]
Dec 02 18:18:11.419 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 18:18:11.419 INFO [stderr] 
Dec 02 18:18:11.419 INFO [stderr] error: aborting due to previous error
Dec 02 18:18:11.419 INFO [stderr] 
Dec 02 18:18:11.419 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 18:18:11.435 INFO [stderr] error: Could not compile `futures-await-async-macro`.
Dec 02 18:18:11.435 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 18:18:14.262 INFO [stderr] error: build failed
Dec 02 18:18:14.271 INFO [stderr] su: No module specific data is present
Dec 02 18:18:15.185 INFO running `"docker" "inspect" "36a5cbd1bf6612e4f57a6b8fb7292e1dbdcdbace8456f7fe066a3138a2db566f"`
Dec 02 18:18:15.440 INFO running `"docker" "rm" "-f" "36a5cbd1bf6612e4f57a6b8fb7292e1dbdcdbace8456f7fe066a3138a2db566f"`
Dec 02 18:18:15.827 INFO [stdout] 36a5cbd1bf6612e4f57a6b8fb7292e1dbdcdbace8456f7fe066a3138a2db566f