Nov 02 12:25:40.867 INFO testing merkle-tree-stream-0.5.0 against 1.30.0 for beta-1.31-1
Nov 02 12:25:40.867 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-7/1.30.0:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 12:25:41.114 INFO blam! a72061f8cd3f3a1f20941bd02495a830e27c5a32083707e2747e8a6c689a2ecf
Nov 02 12:25:41.118 INFO running `"docker" "start" "-a" "a72061f8cd3f3a1f20941bd02495a830e27c5a32083707e2747e8a6c689a2ecf"`
Nov 02 12:25:41.667 INFO kablam! usermod: no changes
Nov 02 12:25:41.739 INFO kablam!    Compiling flat-tree v3.6.0
Nov 02 12:25:42.679 INFO kablam!    Compiling merkle-tree-stream v0.5.0 (/source)
Nov 02 12:25:43.217 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Nov 02 12:25:43.218 INFO kablam!  --> src/lib.rs:2:1
Nov 02 12:25:43.218 INFO kablam!   |
Nov 02 12:25:43.218 INFO kablam! 2 | #![feature(external_doc)]
Nov 02 12:25:43.218 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 12:25:43.218 INFO kablam! 
Nov 02 12:25:43.218 INFO kablam! error: aborting due to previous error
Nov 02 12:25:43.218 INFO kablam! 
Nov 02 12:25:43.218 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Nov 02 12:25:43.254 INFO kablam! error: Could not compile `merkle-tree-stream`.
Nov 02 12:25:43.264 INFO kablam! 
Nov 02 12:25:43.264 INFO kablam! To learn more, run the command again with --verbose.
Nov 02 12:25:43.264 INFO kablam! su: No module specific data is present
Nov 02 12:25:43.639 INFO running `"docker" "rm" "-f" "a72061f8cd3f3a1f20941bd02495a830e27c5a32083707e2747e8a6c689a2ecf"`
Nov 02 12:25:43.905 INFO blam! a72061f8cd3f3a1f20941bd02495a830e27c5a32083707e2747e8a6c689a2ecf
