Dec 03 02:20:11.460 INFO testing macro-machines-0.8.6 against 1.30.1 for beta-1.31-5
Dec 03 02:20:11.460 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-5/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 02:20:11.667 INFO [stdout] 0a1b33e5a136491bd10711aebacde6e7733f43931af7d3a2c441cda0056d346d
Dec 03 02:20:11.675 INFO running `"docker" "start" "-a" "0a1b33e5a136491bd10711aebacde6e7733f43931af7d3a2c441cda0056d346d"`
Dec 03 02:20:12.159 INFO [stderr] usermod: no changes
Dec 03 02:20:12.195 INFO [stderr]    Compiling marksman_escape v0.1.2
Dec 03 02:20:22.657 INFO [stderr]    Compiling macro-machines v0.8.6 (/source)
Dec 03 02:20:23.379 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 02:20:23.379 INFO [stderr]   --> src/lib.rs:68:1
Dec 03 02:20:23.379 INFO [stderr]    |
Dec 03 02:20:23.379 INFO [stderr] 68 | #![feature(use_extern_macros)]
Dec 03 02:20:23.379 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 02:20:23.379 INFO [stderr] 
Dec 03 02:20:23.379 INFO [stderr] error: aborting due to previous error
Dec 03 02:20:23.379 INFO [stderr] 
Dec 03 02:20:23.379 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 02:20:23.384 INFO [stderr] error: Could not compile `macro-machines`.
Dec 03 02:20:23.384 INFO [stderr] 
Dec 03 02:20:23.384 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 02:20:23.384 INFO [stderr] su: No module specific data is present
Dec 03 02:20:23.907 INFO running `"docker" "inspect" "0a1b33e5a136491bd10711aebacde6e7733f43931af7d3a2c441cda0056d346d"`
Dec 03 02:20:24.173 INFO running `"docker" "rm" "-f" "0a1b33e5a136491bd10711aebacde6e7733f43931af7d3a2c441cda0056d346d"`
Dec 03 02:20:24.463 INFO [stdout] 0a1b33e5a136491bd10711aebacde6e7733f43931af7d3a2c441cda0056d346d