Aug 02 05:38:49.843 INFO checking libblas-sys-0.0.14 against 1.27.2+tmplazy for lazy_static-1
Aug 02 05:38:49.843 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:38:49.843 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:38:49.843 INFO running `"docker" "create" "-v" "/tmp/crater.RsStIuZkStZ7:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2+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 05:38:50.103 INFO blam! 170b538029150b61ea9989c70c8cd8aedc1bcece36e8d59f990bd42ef6296c60
Aug 02 05:38:50.105 INFO running `"docker" "start" "-a" "170b538029150b61ea9989c70c8cd8aedc1bcece36e8d59f990bd42ef6296c60"`
Aug 02 05:38:51.440 INFO kablam!    Compiling libblas-sys v0.0.14 (file:///source)
Aug 02 05:38:51.793 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:38:51.793 INFO kablam!  --> build.rs:1:1
Aug 02 05:38:51.793 INFO kablam!   |
Aug 02 05:38:51.793 INFO kablam! 1 | #![feature(path)]
Aug 02 05:38:51.793 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 05:38:51.794 INFO kablam! 
Aug 02 05:38:51.794 INFO kablam! error: aborting due to previous error
Aug 02 05:38:51.794 INFO kablam! 
Aug 02 05:38:51.794 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 05:38:51.807 INFO kablam! error: Could not compile `libblas-sys`.
Aug 02 05:38:51.807 INFO kablam! 
Aug 02 05:38:51.807 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 05:38:51.807 INFO kablam! su: No module specific data is present
Aug 02 05:38:52.574 INFO running `"docker" "rm" "-f" "170b538029150b61ea9989c70c8cd8aedc1bcece36e8d59f990bd42ef6296c60"`
Aug 02 05:38:52.742 INFO blam! 170b538029150b61ea9989c70c8cd8aedc1bcece36e8d59f990bd42ef6296c60