Dec 02 18:32:01.899 INFO testing rustdoc-highlight-0.1.5 against 1.30.1 for beta-1.31-5
Dec 02 18:32:01.900 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 02 18:32:02.448 INFO [stdout] 03f4943c48fa412d41f545b459663f077d4a8355f16476cb001978b22bc66e13
Dec 02 18:32:02.450 INFO running `"docker" "start" "-a" "03f4943c48fa412d41f545b459663f077d4a8355f16476cb001978b22bc66e13"`
Dec 02 18:32:03.476 INFO [stderr] usermod: no changes
Dec 02 18:32:03.521 INFO [stderr]    Compiling rustdoc-highlight v0.1.5 (/source)
Dec 02 18:32:06.820 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 18:32:06.820 INFO [stderr]   --> src/lib.rs:23:1
Dec 02 18:32:06.820 INFO [stderr]    |
Dec 02 18:32:06.820 INFO [stderr] 23 | #![feature(rustc_private)]
Dec 02 18:32:06.820 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 18:32:06.820 INFO [stderr] 
Dec 02 18:32:06.820 INFO [stderr] error: aborting due to previous error
Dec 02 18:32:06.820 INFO [stderr] 
Dec 02 18:32:06.820 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 18:32:06.828 INFO [stderr] error: Could not compile `rustdoc-highlight`.
Dec 02 18:32:06.828 INFO [stderr] 
Dec 02 18:32:06.828 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 18:32:06.839 INFO [stderr] su: No module specific data is present
Dec 02 18:32:07.508 INFO running `"docker" "inspect" "03f4943c48fa412d41f545b459663f077d4a8355f16476cb001978b22bc66e13"`
Dec 02 18:32:07.772 INFO running `"docker" "rm" "-f" "03f4943c48fa412d41f545b459663f077d4a8355f16476cb001978b22bc66e13"`
Dec 02 18:32:08.038 INFO [stdout] 03f4943c48fa412d41f545b459663f077d4a8355f16476cb001978b22bc66e13