Dec 03 15:50:44.891 INFO testing clucstr-0.1.6 against 1.30.1 for beta-1.31-5
Dec 03 15:50:44.891 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 15:50:45.088 INFO [stdout] 70a552287e8024c2aa19f8b4427a96961c0170e786e48b34380907085e4d9a7d
Dec 03 15:50:45.089 INFO running `"docker" "start" "-a" "70a552287e8024c2aa19f8b4427a96961c0170e786e48b34380907085e4d9a7d"`
Dec 03 15:50:45.715 INFO [stderr] usermod: no changes
Dec 03 15:50:45.767 INFO [stderr]    Compiling clucstr v0.1.6 (/source)
Dec 03 15:50:50.731 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 15:50:50.731 INFO [stderr]    --> src/lib.rs:155:1
Dec 03 15:50:50.731 INFO [stderr]     |
Dec 03 15:50:50.731 INFO [stderr] 155 | #![feature(plugin_registrar)]
Dec 03 15:50:50.731 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 15:50:50.731 INFO [stderr] 
Dec 03 15:50:50.731 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 15:50:50.731 INFO [stderr]    --> src/lib.rs:156:1
Dec 03 15:50:50.731 INFO [stderr]     |
Dec 03 15:50:50.731 INFO [stderr] 156 | #![feature(rustc_private)]
Dec 03 15:50:50.731 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 15:50:50.731 INFO [stderr] 
Dec 03 15:50:50.731 INFO [stderr] error: aborting due to 2 previous errors
Dec 03 15:50:50.731 INFO [stderr] 
Dec 03 15:50:50.731 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 15:50:50.743 INFO [stderr] error: Could not compile `clucstr`.
Dec 03 15:50:50.743 INFO [stderr] 
Dec 03 15:50:50.743 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 15:50:50.743 INFO [stderr] su: No module specific data is present
Dec 03 15:50:51.129 INFO running `"docker" "inspect" "70a552287e8024c2aa19f8b4427a96961c0170e786e48b34380907085e4d9a7d"`
Dec 03 15:50:51.272 INFO running `"docker" "rm" "-f" "70a552287e8024c2aa19f8b4427a96961c0170e786e48b34380907085e4d9a7d"`
Dec 03 15:50:51.431 INFO [stdout] 70a552287e8024c2aa19f8b4427a96961c0170e786e48b34380907085e4d9a7d