Dec 02 16:41:15.413 INFO testing skein-ffi-0.0.1 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 16:41:15.414 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 16:41:15.884 INFO [stdout] 4a581b9a258ed246e779c07086264445e0181dd734d8f64f1f9353f4867fcbb9
Dec 02 16:41:15.890 INFO running `"docker" "start" "-a" "4a581b9a258ed246e779c07086264445e0181dd734d8f64f1f9353f4867fcbb9"`
Dec 02 16:41:16.811 INFO [stderr] usermod: no changes
Dec 02 16:41:16.879 INFO [stderr]    Compiling skein-ffi v0.0.1 (/source)
Dec 02 16:41:17.549 INFO [stderr] warning: use of deprecated item 'gcc::Build': crate has been renamed to `cc`, the `gcc` name is not maintained
Dec 02 16:41:17.549 INFO [stderr]  --> build.rs:4:5
Dec 02 16:41:17.549 INFO [stderr]   |
Dec 02 16:41:17.549 INFO [stderr] 4 |     gcc::Build::new()
Dec 02 16:41:17.549 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 02 16:41:17.549 INFO [stderr]   |
Dec 02 16:41:17.549 INFO [stderr]   = note: #[warn(deprecated)] on by default
Dec 02 16:41:17.549 INFO [stderr] 
Dec 02 16:41:17.551 INFO [stderr] warning: use of deprecated item 'gcc::Build::new': crate has been renamed to `cc`, the `gcc` name is not maintained
Dec 02 16:41:17.551 INFO [stderr]  --> build.rs:4:5
Dec 02 16:41:17.551 INFO [stderr]   |
Dec 02 16:41:17.551 INFO [stderr] 4 |     gcc::Build::new()
Dec 02 16:41:17.551 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 02 16:41:17.551 INFO [stderr] 
Dec 02 16:41:19.043 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 16:41:19.043 INFO [stderr]  --> src/lib.rs:2:1
Dec 02 16:41:19.043 INFO [stderr]   |
Dec 02 16:41:19.043 INFO [stderr] 2 | #![feature(libc)]
Dec 02 16:41:19.043 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 02 16:41:19.043 INFO [stderr] 
Dec 02 16:41:19.043 INFO [stderr] error: aborting due to previous error
Dec 02 16:41:19.043 INFO [stderr] 
Dec 02 16:41:19.043 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 16:41:19.045 INFO [stderr] error: Could not compile `skein-ffi`.
Dec 02 16:41:19.045 INFO [stderr] 
Dec 02 16:41:19.045 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 16:41:19.046 INFO [stderr] su: No module specific data is present
Dec 02 16:41:19.403 INFO running `"docker" "inspect" "4a581b9a258ed246e779c07086264445e0181dd734d8f64f1f9353f4867fcbb9"`
Dec 02 16:41:19.587 INFO running `"docker" "rm" "-f" "4a581b9a258ed246e779c07086264445e0181dd734d8f64f1f9353f4867fcbb9"`
Dec 02 16:41:19.843 INFO [stdout] 4a581b9a258ed246e779c07086264445e0181dd734d8f64f1f9353f4867fcbb9