Nov 01 12:02:23.477 INFO testing data-pup/rust-temperature-converter against 1.30.0 for beta-1.31-1
Nov 01 12:02:23.479 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-6/1.30.0:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 01 12:02:23.964 INFO blam! 34d6c1360e46b77f61681c753bb72497722f5a9174962ada42bb83697a01a6f8
Nov 01 12:02:23.967 INFO running `"docker" "start" "-a" "34d6c1360e46b77f61681c753bb72497722f5a9174962ada42bb83697a01a6f8"`
Nov 01 12:02:25.159 INFO kablam! usermod: no changes
Nov 01 12:02:25.223 INFO kablam!    Compiling rust-temp-converter v0.1.0 (/source)
Nov 01 12:02:25.731 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Nov 01 12:02:25.732 INFO kablam!  --> src/main.rs:1:1
Nov 01 12:02:25.732 INFO kablam!   |
Nov 01 12:02:25.732 INFO kablam! 1 | #![feature(iterator_step_by)]
Nov 01 12:02:25.733 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 12:02:25.733 INFO kablam! 
Nov 01 12:02:25.733 INFO kablam! error: aborting due to previous error
Nov 01 12:02:25.734 INFO kablam! 
Nov 01 12:02:25.743 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Nov 01 12:02:25.743 INFO kablam! error: Could not compile `rust-temp-converter`.
Nov 01 12:02:25.744 INFO kablam! 
Nov 01 12:02:25.744 INFO kablam! To learn more, run the command again with --verbose.
Nov 01 12:02:25.744 INFO kablam! su: No module specific data is present
Nov 01 12:02:26.689 INFO running `"docker" "rm" "-f" "34d6c1360e46b77f61681c753bb72497722f5a9174962ada42bb83697a01a6f8"`
Nov 01 12:02:26.915 INFO blam! 34d6c1360e46b77f61681c753bb72497722f5a9174962ada42bb83697a01a6f8
