Nov 02 04:36:54.218 INFO testing sleep-parser-0.6.0 against 1.30.0 for beta-1.31-1
Nov 02 04:36:54.220 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-0/1.30.0:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 04:36:54.783 INFO blam! a2421d10f01ea797846881c03c705fcd91e162ca19205e2470fc42c906093090
Nov 02 04:36:54.787 INFO running `"docker" "start" "-a" "a2421d10f01ea797846881c03c705fcd91e162ca19205e2470fc42c906093090"`
Nov 02 04:36:56.055 INFO kablam! usermod: no changes
Nov 02 04:36:56.195 INFO kablam!    Compiling sleep-parser v0.6.0 (/source)
Nov 02 04:36:57.212 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Nov 02 04:36:57.212 INFO kablam!  --> src/lib.rs:3:1
Nov 02 04:36:57.212 INFO kablam!   |
Nov 02 04:36:57.212 INFO kablam! 3 | #![feature(external_doc)]
Nov 02 04:36:57.212 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 04:36:57.212 INFO kablam! 
Nov 02 04:36:57.213 INFO kablam! error: aborting due to previous error
Nov 02 04:36:57.213 INFO kablam! 
Nov 02 04:36:57.213 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Nov 02 04:36:57.223 INFO kablam! error: Could not compile `sleep-parser`.
Nov 02 04:36:57.224 INFO kablam! 
Nov 02 04:36:57.224 INFO kablam! To learn more, run the command again with --verbose.
Nov 02 04:36:57.226 INFO kablam! su: No module specific data is present
Nov 02 04:36:57.981 INFO running `"docker" "rm" "-f" "a2421d10f01ea797846881c03c705fcd91e162ca19205e2470fc42c906093090"`
Nov 02 04:36:58.404 INFO blam! a2421d10f01ea797846881c03c705fcd91e162ca19205e2470fc42c906093090
