Nov 03 01:56:43.375 INFO testing bitflags-core-0.3.4 against 1.30.0 for beta-1.31-1
Nov 03 01:56:43.375 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 03 01:56:43.717 INFO blam! c2a80afa312a282e5166d20ece7e2c0875fd9b366534f39479c8cd06105eb346
Nov 03 01:56:43.723 INFO running `"docker" "start" "-a" "c2a80afa312a282e5166d20ece7e2c0875fd9b366534f39479c8cd06105eb346"`
Nov 03 01:56:45.160 INFO kablam! usermod: no changes
Nov 03 01:56:45.209 INFO kablam!    Compiling bitflags-core v0.3.4 (/source)
Nov 03 01:56:45.323 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Nov 03 01:56:45.323 INFO kablam!   --> src/lib.rs:11:1
Nov 03 01:56:45.323 INFO kablam!    |
Nov 03 01:56:45.323 INFO kablam! 11 | #![feature(no_std)]
Nov 03 01:56:45.323 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^
Nov 03 01:56:45.323 INFO kablam! 
Nov 03 01:56:45.323 INFO kablam! error: aborting due to previous error
Nov 03 01:56:45.323 INFO kablam! 
Nov 03 01:56:45.323 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Nov 03 01:56:45.343 INFO kablam! error: Could not compile `bitflags-core`.
Nov 03 01:56:45.343 INFO kablam! 
Nov 03 01:56:45.343 INFO kablam! To learn more, run the command again with --verbose.
Nov 03 01:56:45.343 INFO kablam! su: No module specific data is present
Nov 03 01:56:45.874 INFO running `"docker" "rm" "-f" "c2a80afa312a282e5166d20ece7e2c0875fd9b366534f39479c8cd06105eb346"`
Nov 03 01:56:46.101 INFO blam! c2a80afa312a282e5166d20ece7e2c0875fd9b366534f39479c8cd06105eb346
