Dec 02 20:28:48.903 INFO testing rerast-0.1.30 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 20:28:48.903 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt 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 20:28:49.195 INFO [stdout] ef80f903548d8ab9ef4ab91ed0fde6f807a34f7d78c54b0cfed30c385b8f598a
Dec 02 20:28:49.199 INFO running `"docker" "start" "-a" "ef80f903548d8ab9ef4ab91ed0fde6f807a34f7d78c54b0cfed30c385b8f598a"`
Dec 02 20:28:50.044 INFO [stderr] usermod: no changes
Dec 02 20:28:50.186 INFO [stderr]    Compiling rerast_macros v0.1.12
Dec 02 20:28:50.830 INFO [stderr]    Compiling rerast v0.1.30 (/source)
Dec 02 20:28:56.963 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 20:28:56.963 INFO [stderr]   --> src/lib.rs:69:1
Dec 02 20:28:56.963 INFO [stderr]    |
Dec 02 20:28:56.963 INFO [stderr] 69 | #![feature(rustc_private)]
Dec 02 20:28:56.963 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 20:28:56.963 INFO [stderr] 
Dec 02 20:28:56.963 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 20:28:56.963 INFO [stderr]   --> src/lib.rs:70:1
Dec 02 20:28:56.963 INFO [stderr]    |
Dec 02 20:28:56.963 INFO [stderr] 70 | #![feature(box_syntax)]
Dec 02 20:28:56.963 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 20:28:56.963 INFO [stderr] 
Dec 02 20:28:56.963 INFO [stderr] error: aborting due to 2 previous errors
Dec 02 20:28:56.963 INFO [stderr] 
Dec 02 20:28:56.963 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 20:28:56.987 INFO [stderr] error: Could not compile `rerast`.
Dec 02 20:28:56.987 INFO [stderr] 
Dec 02 20:28:56.987 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 20:28:56.987 INFO [stderr] su: No module specific data is present
Dec 02 20:28:57.521 INFO running `"docker" "inspect" "ef80f903548d8ab9ef4ab91ed0fde6f807a34f7d78c54b0cfed30c385b8f598a"`
Dec 02 20:28:57.788 INFO running `"docker" "rm" "-f" "ef80f903548d8ab9ef4ab91ed0fde6f807a34f7d78c54b0cfed30c385b8f598a"`
Dec 02 20:28:58.198 INFO [stdout] ef80f903548d8ab9ef4ab91ed0fde6f807a34f7d78c54b0cfed30c385b8f598a