Aug 02 11:08:38.454 INFO checking dwarf-0.0.3 against 1.27.2+tmplazy for lazy_static-1 Aug 02 11:08:38.454 INFO running: cargo +1.27.2 check --frozen --all --all-targets Aug 02 11:08:38.454 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets Aug 02 11:08:38.454 INFO running `"docker" "create" "-v" "/tmp/crater.Lk4Vutevoord:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2+tmplazy:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"` Aug 02 11:08:38.683 INFO blam! 180e57ea0586f276181de93cf8afeb189de5aea70edfc103d16e8b31cedd2557 Aug 02 11:08:38.685 INFO running `"docker" "start" "-a" "180e57ea0586f276181de93cf8afeb189de5aea70edfc103d16e8b31cedd2557"` Aug 02 11:08:40.252 INFO kablam! Checking elf v0.0.9 Aug 02 11:08:41.527 INFO kablam! Checking dwarf v0.0.3 (file:///source) Aug 02 11:08:46.267 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel Aug 02 11:08:46.267 INFO kablam! --> benches/bench.rs:1:1 Aug 02 11:08:46.267 INFO kablam! | Aug 02 11:08:46.267 INFO kablam! 1 | #![feature(test)] Aug 02 11:08:46.267 INFO kablam! | ^^^^^^^^^^^^^^^^^ Aug 02 11:08:46.267 INFO kablam! Aug 02 11:08:46.268 INFO kablam! error: aborting due to previous error Aug 02 11:08:46.268 INFO kablam! Aug 02 11:08:46.268 INFO kablam! For more information about this error, try `rustc --explain E0554`. Aug 02 11:08:46.274 INFO kablam! error: Could not compile `dwarf`. Aug 02 11:08:46.275 INFO kablam! Aug 02 11:08:46.275 INFO kablam! To learn more, run the command again with --verbose. Aug 02 11:08:46.277 INFO kablam! su: No module specific data is present Aug 02 11:08:46.866 INFO running `"docker" "rm" "-f" "180e57ea0586f276181de93cf8afeb189de5aea70edfc103d16e8b31cedd2557"` Aug 02 11:08:47.031 INFO blam! 180e57ea0586f276181de93cf8afeb189de5aea70edfc103d16e8b31cedd2557