Aug 02 13:59:38.465 INFO checking blake2-0.7.1 against 1.27.2+tmplazy for lazy_static-1
Aug 02 13:59:38.465 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 13:59:38.465 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 13:59:38.465 INFO running `"docker" "create" "-v" "/tmp/crater.xQLgX9XJ5FIc:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-1/1.27.2+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 13:59:38.731 INFO blam! 77ebdc71d12889c581122056aa8b65f94b56f855e1bf6e769487559ee295f6b4
Aug 02 13:59:38.788 INFO running `"docker" "start" "-a" "77ebdc71d12889c581122056aa8b65f94b56f855e1bf6e769487559ee295f6b4"`
Aug 02 13:59:40.476 INFO kablam!     Checking crypto-mac v0.5.2
Aug 02 13:59:40.995 INFO kablam!     Checking blake2 v0.7.1 (file:///source)
Aug 02 13:59:44.814 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 13:59:44.814 INFO kablam!  --> benches/blake2s.rs:2:1
Aug 02 13:59:44.814 INFO kablam!   |
Aug 02 13:59:44.814 INFO kablam! 2 | #![feature(test)]
Aug 02 13:59:44.814 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 13:59:44.814 INFO kablam! 
Aug 02 13:59:44.814 INFO kablam! error: aborting due to previous error
Aug 02 13:59:44.814 INFO kablam! 
Aug 02 13:59:44.815 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 13:59:44.850 INFO kablam! error: Could not compile `blake2`.
Aug 02 13:59:44.851 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 13:59:45.450 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 13:59:45.450 INFO kablam!  --> benches/blake2b.rs:2:1
Aug 02 13:59:45.450 INFO kablam!   |
Aug 02 13:59:45.450 INFO kablam! 2 | #![feature(test)]
Aug 02 13:59:45.451 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 13:59:45.451 INFO kablam! 
Aug 02 13:59:45.451 INFO kablam! error: aborting due to previous error
Aug 02 13:59:45.451 INFO kablam! 
Aug 02 13:59:45.451 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 13:59:45.463 INFO kablam! error: Could not compile `blake2`.
Aug 02 13:59:45.464 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 13:59:46.687 INFO kablam! error: build failed
Aug 02 13:59:46.688 INFO kablam! su: No module specific data is present
Aug 02 13:59:47.379 INFO running `"docker" "rm" "-f" "77ebdc71d12889c581122056aa8b65f94b56f855e1bf6e769487559ee295f6b4"`
Aug 02 13:59:47.569 INFO blam! 77ebdc71d12889c581122056aa8b65f94b56f855e1bf6e769487559ee295f6b4