Nov 02 04:02:59.314 INFO testing spin-0.4.9 against 1.30.0 for beta-1.31-1
Nov 02 04:02:59.318 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-2/1.30.0:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-1/1.30.0:/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 +1.30.0 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"`
Nov 02 04:02:59.803 INFO blam! c556e5123fa5abfc2b73806553df7a3f400cac97fa1db21fc858196cd6da01b5
Nov 02 04:02:59.815 INFO running `"docker" "start" "-a" "c556e5123fa5abfc2b73806553df7a3f400cac97fa1db21fc858196cd6da01b5"`
Nov 02 04:03:00.900 INFO kablam! usermod: no changes
Nov 02 04:03:00.938 INFO kablam!    Compiling spin v0.4.9 (/source)
Nov 02 04:03:01.015 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Nov 02 04:03:01.015 INFO kablam!  --> src/lib.rs:6:35
Nov 02 04:03:01.015 INFO kablam!   |
Nov 02 04:03:01.015 INFO kablam! 6 | #![cfg_attr(feature = "const_fn", feature(const_fn))]
Nov 02 04:03:01.015 INFO kablam!   |                                   ^^^^^^^^^^^^^^^^^^
Nov 02 04:03:01.015 INFO kablam! 
Nov 02 04:03:01.016 INFO kablam! error: aborting due to previous error
Nov 02 04:03:01.016 INFO kablam! 
Nov 02 04:03:01.016 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Nov 02 04:03:01.019 INFO kablam! error: Could not compile `spin`.
Nov 02 04:03:01.019 INFO kablam! 
Nov 02 04:03:01.019 INFO kablam! To learn more, run the command again with --verbose.
Nov 02 04:03:01.031 INFO kablam! su: No module specific data is present
Nov 02 04:03:01.757 INFO running `"docker" "rm" "-f" "c556e5123fa5abfc2b73806553df7a3f400cac97fa1db21fc858196cd6da01b5"`
Nov 02 04:03:01.995 INFO blam! c556e5123fa5abfc2b73806553df7a3f400cac97fa1db21fc858196cd6da01b5
