Dec 03 17:58:59.984 INFO testing blissb-0.2.3 against 1.30.1 for beta-1.31-5
Dec 03 17:58:59.984 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 17:59:00.172 INFO [stdout] 1f91c8992edf26ace1b998f847e51efb698c75f80b54283db3fc621cdd516df6
Dec 03 17:59:00.174 INFO running `"docker" "start" "-a" "1f91c8992edf26ace1b998f847e51efb698c75f80b54283db3fc621cdd516df6"`
Dec 03 17:59:00.802 INFO [stderr] usermod: no changes
Dec 03 17:59:00.875 INFO [stderr]    Compiling bitpack v0.2.1
Dec 03 17:59:01.049 INFO [stderr]    Compiling blissb v0.2.3 (/source)
Dec 03 17:59:01.941 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 17:59:01.941 INFO [stderr]  --> src/lib.rs:1:1
Dec 03 17:59:01.941 INFO [stderr]   |
Dec 03 17:59:01.941 INFO [stderr] 1 | #![feature(iterator_step_by)]
Dec 03 17:59:01.941 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 17:59:01.941 INFO [stderr] 
Dec 03 17:59:01.941 INFO [stderr] error: aborting due to previous error
Dec 03 17:59:01.941 INFO [stderr] 
Dec 03 17:59:01.941 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 17:59:01.948 INFO [stderr] error: Could not compile `blissb`.
Dec 03 17:59:01.948 INFO [stderr] 
Dec 03 17:59:01.948 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 17:59:01.949 INFO [stderr] su: No module specific data is present
Dec 03 17:59:02.316 INFO running `"docker" "inspect" "1f91c8992edf26ace1b998f847e51efb698c75f80b54283db3fc621cdd516df6"`
Dec 03 17:59:02.419 INFO running `"docker" "rm" "-f" "1f91c8992edf26ace1b998f847e51efb698c75f80b54283db3fc621cdd516df6"`
Dec 03 17:59:02.539 INFO [stdout] 1f91c8992edf26ace1b998f847e51efb698c75f80b54283db3fc621cdd516df6