Aug 02 05:44:06.593 INFO checking lcs-diff-0.1.1 against 1.27.2+tmplazy for lazy_static-1
Aug 02 05:44:06.593 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:44:06.593 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:44:06.594 INFO running `"docker" "create" "-v" "/tmp/crater.euu6EIenUp5V:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2+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 05:44:06.832 INFO blam! 94bdee3541b83fa015e0af77e01d3344800380ef3e85a497436c05df66c568f7
Aug 02 05:44:06.832 INFO running `"docker" "start" "-a" "94bdee3541b83fa015e0af77e01d3344800380ef3e85a497436c05df66c568f7"`
Aug 02 05:44:07.733 INFO kablam!    Compiling speculate v0.0.25
Aug 02 05:44:07.734 INFO kablam!     Checking lcs-diff v0.1.1 (file:///source)
Aug 02 05:44:10.351 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:44:10.351 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/speculate-0.0.25/src/lib.rs:1:1
Aug 02 05:44:10.351 INFO kablam!   |
Aug 02 05:44:10.351 INFO kablam! 1 | #![feature(rustc_private)]
Aug 02 05:44:10.351 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 05:44:10.351 INFO kablam! 
Aug 02 05:44:10.351 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:44:10.351 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/speculate-0.0.25/src/lib.rs:2:1
Aug 02 05:44:10.351 INFO kablam!   |
Aug 02 05:44:10.351 INFO kablam! 2 | #![feature(plugin_registrar, quote)]
Aug 02 05:44:10.351 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 05:44:10.351 INFO kablam! 
Aug 02 05:44:10.352 INFO kablam! error: aborting due to 2 previous errors
Aug 02 05:44:10.352 INFO kablam! 
Aug 02 05:44:10.352 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 05:44:10.384 INFO kablam! error: Could not compile `speculate`.
Aug 02 05:44:10.384 INFO kablam! 
Aug 02 05:44:10.384 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 05:44:10.385 INFO kablam! su: No module specific data is present
Aug 02 05:44:10.944 INFO running `"docker" "rm" "-f" "94bdee3541b83fa015e0af77e01d3344800380ef3e85a497436c05df66c568f7"`
Aug 02 05:44:11.089 INFO blam! 94bdee3541b83fa015e0af77e01d3344800380ef3e85a497436c05df66c568f7