Dec 02 10:00:12.516 INFO testing 0x7CFE/cortex against 1.30.1 for beta-1.31-5
Dec 02 10:00:12.516 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 02 10:00:13.142 INFO [stdout] 032af3762beae94bdbdc6e0171bc9472b0ab1aaaa1cdbff761db83d305b67e6b
Dec 02 10:00:13.144 INFO running `"docker" "start" "-a" "032af3762beae94bdbdc6e0171bc9472b0ab1aaaa1cdbff761db83d305b67e6b"`
Dec 02 10:00:14.651 INFO [stderr] usermod: no changes
Dec 02 10:00:14.868 INFO [stderr]    Compiling sample v0.6.2
Dec 02 10:00:14.869 INFO [stderr]    Compiling hound v3.1.0
Dec 02 10:00:14.901 INFO [stderr]    Compiling num-complex v0.1.37
Dec 02 10:00:14.909 INFO [stderr]    Compiling bincode v1.0.0-alpha7
Dec 02 10:00:14.911 INFO [stderr]    Compiling rayon-core v1.0.0
Dec 02 10:00:18.667 INFO [stderr]    Compiling dft v0.5.4
Dec 02 10:00:19.759 INFO [stderr]    Compiling rayon v0.7.0
Dec 02 10:00:28.224 INFO [stderr]    Compiling cortex v0.1.0 (/source)
Dec 02 10:00:29.799 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 10:00:29.799 INFO [stderr]  --> src/main.rs:2:1
Dec 02 10:00:29.799 INFO [stderr]   |
Dec 02 10:00:29.799 INFO [stderr] 2 | #![feature(btree_range, collections_bound)]
Dec 02 10:00:29.799 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 10:00:29.799 INFO [stderr] 
Dec 02 10:00:29.799 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 10:00:29.799 INFO [stderr]  --> src/main.rs:3:1
Dec 02 10:00:29.799 INFO [stderr]   |
Dec 02 10:00:29.799 INFO [stderr] 3 | #![feature(conservative_impl_trait)]
Dec 02 10:00:29.799 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 10:00:29.799 INFO [stderr] 
Dec 02 10:00:29.799 INFO [stderr] error: aborting due to 2 previous errors
Dec 02 10:00:29.799 INFO [stderr] 
Dec 02 10:00:29.799 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 10:00:29.811 INFO [stderr] error: Could not compile `cortex`.
Dec 02 10:00:29.811 INFO [stderr] 
Dec 02 10:00:29.811 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 10:00:29.811 INFO [stderr] su: No module specific data is present
Dec 02 10:00:30.104 INFO running `"docker" "inspect" "032af3762beae94bdbdc6e0171bc9472b0ab1aaaa1cdbff761db83d305b67e6b"`
Dec 02 10:00:30.217 INFO running `"docker" "rm" "-f" "032af3762beae94bdbdc6e0171bc9472b0ab1aaaa1cdbff761db83d305b67e6b"`
Dec 02 10:00:30.347 INFO [stdout] 032af3762beae94bdbdc6e0171bc9472b0ab1aaaa1cdbff761db83d305b67e6b
