Aug 02 13:59:39.251 INFO checking blake2-0.7.1 against 1.27.2 for lazy_static-1
Aug 02 13:59:39.251 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 13:59:39.251 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 13:59:39.252 INFO running `"docker" "create" "-v" "/tmp/crater.sniYLIsELPRN:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2:/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 13:59:39.519 INFO blam! 2156e75299b4b70c4f5285d870b579fcc3ecda46646da6b36d3c3d3370417b7c
Aug 02 13:59:39.521 INFO running `"docker" "start" "-a" "2156e75299b4b70c4f5285d870b579fcc3ecda46646da6b36d3c3d3370417b7c"`
Aug 02 13:59:40.855 INFO kablam!     Checking crypto-mac v0.5.2
Aug 02 13:59:41.486 INFO kablam!     Checking blake2 v0.7.1 (file:///source)
Aug 02 13:59:45.607 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 13:59:45.607 INFO kablam!  --> benches/blake2b.rs:2:1
Aug 02 13:59:45.607 INFO kablam!   |
Aug 02 13:59:45.607 INFO kablam! 2 | #![feature(test)]
Aug 02 13:59:45.607 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 13:59:45.619 INFO kablam! 
Aug 02 13:59:45.619 INFO kablam! error: aborting due to previous error
Aug 02 13:59:45.619 INFO kablam! 
Aug 02 13:59:45.619 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 13:59:45.681 INFO kablam! error: Could not compile `blake2`.
Aug 02 13:59:45.682 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 13:59:46.499 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 13:59:46.499 INFO kablam!  --> benches/blake2s.rs:2:1
Aug 02 13:59:46.500 INFO kablam!   |
Aug 02 13:59:46.500 INFO kablam! 2 | #![feature(test)]
Aug 02 13:59:46.500 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 13:59:46.564 INFO kablam! 
Aug 02 13:59:46.568 INFO kablam! error: aborting due to previous error
Aug 02 13:59:46.569 INFO kablam! 
Aug 02 13:59:46.569 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 13:59:46.578 INFO kablam! error: Could not compile `blake2`.
Aug 02 13:59:46.579 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 13:59:47.323 INFO kablam! error: build failed
Aug 02 13:59:47.326 INFO kablam! su: No module specific data is present
Aug 02 13:59:48.010 INFO running `"docker" "rm" "-f" "2156e75299b4b70c4f5285d870b579fcc3ecda46646da6b36d3c3d3370417b7c"`
Aug 02 13:59:48.207 INFO blam! 2156e75299b4b70c4f5285d870b579fcc3ecda46646da6b36d3c3d3370417b7c