Nov 02 01:54:09.879 INFO testing tree-index-0.4.1 against 1.30.0 for beta-1.31-1
Nov 02 01:54:09.879 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 01:54:10.462 INFO blam! b7a46c7aab94b56cda270db617d8c1d5497ab2c623233b6ec6ce98ee22705dae
Nov 02 01:54:10.465 INFO running `"docker" "start" "-a" "b7a46c7aab94b56cda270db617d8c1d5497ab2c623233b6ec6ce98ee22705dae"`
Nov 02 01:54:11.572 INFO kablam! usermod: no changes
Nov 02 01:54:11.643 INFO kablam!    Compiling memory-pager v0.6.1
Nov 02 01:54:11.643 INFO kablam!    Compiling flat-tree v3.6.0
Nov 02 01:54:13.071 INFO kablam!    Compiling sparse-bitfield v0.7.1
Nov 02 01:54:13.932 INFO kablam!    Compiling tree-index v0.4.1 (/source)
Nov 02 01:54:14.540 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Nov 02 01:54:14.540 INFO kablam!  --> src/lib.rs:2:1
Nov 02 01:54:14.540 INFO kablam!   |
Nov 02 01:54:14.540 INFO kablam! 2 | #![feature(external_doc)]
Nov 02 01:54:14.540 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 01:54:14.540 INFO kablam! 
Nov 02 01:54:14.543 INFO kablam! error: aborting due to previous error
Nov 02 01:54:14.543 INFO kablam! 
Nov 02 01:54:14.543 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Nov 02 01:54:14.559 INFO kablam! error: Could not compile `tree-index`.
Nov 02 01:54:14.559 INFO kablam! 
Nov 02 01:54:14.559 INFO kablam! To learn more, run the command again with --verbose.
Nov 02 01:54:14.559 INFO kablam! su: No module specific data is present
Nov 02 01:54:15.287 INFO running `"docker" "rm" "-f" "b7a46c7aab94b56cda270db617d8c1d5497ab2c623233b6ec6ce98ee22705dae"`
Nov 02 01:54:15.642 INFO blam! b7a46c7aab94b56cda270db617d8c1d5497ab2c623233b6ec6ce98ee22705dae
