Dec 03 18:48:07.261 INFO testing azure_sdk_core-0.1.0 against 1.30.1 for beta-1.31-5
Dec 03 18:48:07.261 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/beta-1.31-5/1.30.1:/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 +1.30.1 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 03 18:48:07.483 INFO [stdout] 2b443e3fb2e3941c94e70cc249d73de2c4019ed7ed297029bca7c2189c9a909c
Dec 03 18:48:07.485 INFO running `"docker" "start" "-a" "2b443e3fb2e3941c94e70cc249d73de2c4019ed7ed297029bca7c2189c9a909c"`
Dec 03 18:48:07.967 INFO [stderr] usermod: no changes
Dec 03 18:48:08.197 INFO [stderr]    Compiling azure_sdk_core v0.1.0 (/source)
Dec 03 18:48:14.997 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 18:48:14.997 INFO [stderr]  --> src/lib.rs:5:1
Dec 03 18:48:14.997 INFO [stderr]   |
Dec 03 18:48:14.997 INFO [stderr] 5 | #![feature(conservative_impl_trait)]
Dec 03 18:48:14.997 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 18:48:14.997 INFO [stderr] 
Dec 03 18:48:14.999 INFO [stderr] error: aborting due to previous error
Dec 03 18:48:14.999 INFO [stderr] 
Dec 03 18:48:14.999 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 18:48:15.018 INFO [stderr] error: Could not compile `azure_sdk_core`.
Dec 03 18:48:15.018 INFO [stderr] 
Dec 03 18:48:15.018 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 18:48:15.019 INFO [stderr] su: No module specific data is present
Dec 03 18:48:15.365 INFO running `"docker" "inspect" "2b443e3fb2e3941c94e70cc249d73de2c4019ed7ed297029bca7c2189c9a909c"`
Dec 03 18:48:15.461 INFO running `"docker" "rm" "-f" "2b443e3fb2e3941c94e70cc249d73de2c4019ed7ed297029bca7c2189c9a909c"`
Dec 03 18:48:15.610 INFO [stdout] 2b443e3fb2e3941c94e70cc249d73de2c4019ed7ed297029bca7c2189c9a909c