Dec 02 12:36:36.621 INFO testing uart_16550-0.1.0 against 1.30.1 for beta-1.31-5
Dec 02 12:36:36.621 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 02 12:36:36.835 INFO [stdout] dfdb74d444e10d81447a12eaf229ef338198ddb99fc798b949e83aae2ed1c638
Dec 02 12:36:36.837 INFO running `"docker" "start" "-a" "dfdb74d444e10d81447a12eaf229ef338198ddb99fc798b949e83aae2ed1c638"`
Dec 02 12:36:37.684 INFO [stderr] usermod: no changes
Dec 02 12:36:37.722 INFO [stderr]    Compiling usize_conversions v0.2.0
Dec 02 12:36:37.722 INFO [stderr]    Compiling ux v0.1.3
Dec 02 12:36:37.807 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 12:36:37.807 INFO [stderr]  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/usize_conversions-0.2.0/src/lib.rs:6:1
Dec 02 12:36:37.807 INFO [stderr]   |
Dec 02 12:36:37.807 INFO [stderr] 6 | #![feature(i128_type)]
Dec 02 12:36:37.807 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
Dec 02 12:36:37.807 INFO [stderr] 
Dec 02 12:36:37.807 INFO [stderr] error: aborting due to previous error
Dec 02 12:36:37.807 INFO [stderr] 
Dec 02 12:36:37.807 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 12:36:37.807 INFO [stderr] error: Could not compile `usize_conversions`.
Dec 02 12:36:37.807 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 12:37:01.175 INFO [stderr] error: build failed
Dec 02 12:37:01.183 INFO [stderr] su: No module specific data is present
Dec 02 12:37:01.920 INFO running `"docker" "inspect" "dfdb74d444e10d81447a12eaf229ef338198ddb99fc798b949e83aae2ed1c638"`
Dec 02 12:37:02.058 INFO running `"docker" "rm" "-f" "dfdb74d444e10d81447a12eaf229ef338198ddb99fc798b949e83aae2ed1c638"`
Dec 02 12:37:02.161 INFO [stdout] dfdb74d444e10d81447a12eaf229ef338198ddb99fc798b949e83aae2ed1c638