Dec 03 13:38:38.896 INFO testing drone-macros-core-0.8.3 against 1.30.1 for beta-1.31-5
Dec 03 13:38:38.896 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 13:38:39.106 INFO [stdout] a7922c1cd4218c908931b1f48bb9bde2837d2267ec0c7c9260b5ba620084dfd2
Dec 03 13:38:39.108 INFO running `"docker" "start" "-a" "a7922c1cd4218c908931b1f48bb9bde2837d2267ec0c7c9260b5ba620084dfd2"`
Dec 03 13:38:39.682 INFO [stderr] usermod: no changes
Dec 03 13:38:39.767 INFO [stderr]    Compiling proc-macro2 v0.4.24
Dec 03 13:38:45.203 INFO [stderr]    Compiling quote v0.6.10
Dec 03 13:38:49.597 INFO [stderr]    Compiling syn v0.14.9
Dec 03 13:39:01.315 INFO [stderr]    Compiling drone-macros-core v0.8.3 (/source)
Dec 03 13:39:05.413 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 13:39:05.413 INFO [stderr]  --> src/lib.rs:5:1
Dec 03 13:39:05.413 INFO [stderr]   |
Dec 03 13:39:05.413 INFO [stderr] 5 | #![feature(proc_macro_diagnostic)]
Dec 03 13:39:05.413 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 13:39:05.413 INFO [stderr] 
Dec 03 13:39:05.414 INFO [stderr] error: aborting due to previous error
Dec 03 13:39:05.414 INFO [stderr] 
Dec 03 13:39:05.414 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 13:39:05.425 INFO [stderr] error: Could not compile `drone-macros-core`.
Dec 03 13:39:05.425 INFO [stderr] 
Dec 03 13:39:05.425 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 13:39:05.425 INFO [stderr] su: No module specific data is present
Dec 03 13:39:05.817 INFO running `"docker" "inspect" "a7922c1cd4218c908931b1f48bb9bde2837d2267ec0c7c9260b5ba620084dfd2"`
Dec 03 13:39:05.935 INFO running `"docker" "rm" "-f" "a7922c1cd4218c908931b1f48bb9bde2837d2267ec0c7c9260b5ba620084dfd2"`
Dec 03 13:39:06.075 INFO [stdout] a7922c1cd4218c908931b1f48bb9bde2837d2267ec0c7c9260b5ba620084dfd2