Dec 03 02:03:36.930 INFO testing maze-0.1.2 against 1.30.1 for beta-1.31-5
Dec 03 02:03:36.930 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 02:03:37.131 INFO [stdout] eaf236422792f436a1155be28557028f479a9592da1ea7515bbd713dc65ddfac
Dec 03 02:03:37.132 INFO running `"docker" "start" "-a" "eaf236422792f436a1155be28557028f479a9592da1ea7515bbd713dc65ddfac"`
Dec 03 02:03:37.533 INFO [stderr] usermod: no changes
Dec 03 02:03:37.849 INFO [stderr]    Compiling png v0.5.2
Dec 03 02:03:37.851 INFO [stderr]    Compiling hyper v0.9.12
Dec 03 02:03:40.469 INFO [stderr]    Compiling image v0.10.4
Dec 03 02:03:49.619 INFO [stderr]    Compiling iron v0.4.0
Dec 03 02:03:56.978 INFO [stderr]    Compiling persistent v0.2.1
Dec 03 02:03:56.979 INFO [stderr]    Compiling router v0.4.0
Dec 03 02:03:58.739 INFO [stderr]    Compiling imageproc v0.6.1
Dec 03 02:04:03.671 INFO [stderr]    Compiling bodyparser v0.4.1
Dec 03 02:04:08.183 INFO [stderr]    Compiling urlencoded v0.4.1
Dec 03 02:04:12.081 INFO [stderr]    Compiling maze v0.1.2 (/source)
Dec 03 02:04:18.551 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 02:04:18.551 INFO [stderr]  --> src/lib.rs:1:1
Dec 03 02:04:18.551 INFO [stderr]   |
Dec 03 02:04:18.551 INFO [stderr] 1 | #![feature(test)]
Dec 03 02:04:18.551 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 03 02:04:18.551 INFO [stderr] 
Dec 03 02:04:18.551 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 02:04:18.551 INFO [stderr]  --> src/lib.rs:2:1
Dec 03 02:04:18.551 INFO [stderr]   |
Dec 03 02:04:18.551 INFO [stderr] 2 | #![feature(proc_macro)]
Dec 03 02:04:18.551 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 02:04:18.551 INFO [stderr] 
Dec 03 02:04:18.551 INFO [stderr] error: aborting due to 2 previous errors
Dec 03 02:04:18.551 INFO [stderr] 
Dec 03 02:04:18.551 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 02:04:18.569 INFO [stderr] error: Could not compile `maze`.
Dec 03 02:04:18.569 INFO [stderr] 
Dec 03 02:04:18.569 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 02:04:18.575 INFO [stderr] su: No module specific data is present
Dec 03 02:04:18.893 INFO running `"docker" "inspect" "eaf236422792f436a1155be28557028f479a9592da1ea7515bbd713dc65ddfac"`
Dec 03 02:04:19.024 INFO running `"docker" "rm" "-f" "eaf236422792f436a1155be28557028f479a9592da1ea7515bbd713dc65ddfac"`
Dec 03 02:04:19.163 INFO [stdout] eaf236422792f436a1155be28557028f479a9592da1ea7515bbd713dc65ddfac