Aug 02 04:39:12.081 INFO checking matriarch-0.1.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 04:39:12.081 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 04:39:12.081 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 04:39:12.081 INFO running `"docker" "create" "-v" "/tmp/crater.wXRMx5c6Cm9X:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2+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 04:39:12.287 INFO blam! 65f4cb3389a64e7d57a5067a1bb08e08f7a47d9f192acce54d8cea5150e1157b
Aug 02 04:39:12.289 INFO running `"docker" "start" "-a" "65f4cb3389a64e7d57a5067a1bb08e08f7a47d9f192acce54d8cea5150e1157b"`
Aug 02 04:39:13.832 INFO kablam!     Checking matriarch v0.1.0 (file:///source)
Aug 02 04:39:15.016 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 04:39:15.016 INFO kablam!  --> benches/mul_add_vs_raw.rs:1:1
Aug 02 04:39:15.016 INFO kablam!   |
Aug 02 04:39:15.016 INFO kablam! 1 | #![feature(test)]
Aug 02 04:39:15.016 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 04:39:15.016 INFO kablam! 
Aug 02 04:39:15.017 INFO kablam! error: aborting due to previous error
Aug 02 04:39:15.017 INFO kablam! 
Aug 02 04:39:15.017 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 04:39:15.030 INFO kablam! error: Could not compile `matriarch`.
Aug 02 04:39:15.031 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 04:39:15.052 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 04:39:15.052 INFO kablam!  --> benches/determinant_optimization.rs:1:1
Aug 02 04:39:15.052 INFO kablam!   |
Aug 02 04:39:15.052 INFO kablam! 1 | #![feature(test)]
Aug 02 04:39:15.052 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 04:39:15.054 INFO kablam! 
Aug 02 04:39:15.054 INFO kablam! error: aborting due to previous error
Aug 02 04:39:15.055 INFO kablam! 
Aug 02 04:39:15.055 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 04:39:15.062 INFO kablam! error: Could not compile `matriarch`.
Aug 02 04:39:15.063 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 04:39:15.688 INFO kablam! error: build failed
Aug 02 04:39:15.691 INFO kablam! su: No module specific data is present
Aug 02 04:39:16.370 INFO running `"docker" "rm" "-f" "65f4cb3389a64e7d57a5067a1bb08e08f7a47d9f192acce54d8cea5150e1157b"`
Aug 02 04:39:16.541 INFO blam! 65f4cb3389a64e7d57a5067a1bb08e08f7a47d9f192acce54d8cea5150e1157b