Aug 02 04:02:48.749 INFO checking mrkl-0.0.3 against 1.27.2 for lazy_static-1
Aug 02 04:02:48.749 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 04:02:48.749 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 04:02:48.749 INFO running `"docker" "create" "-v" "/tmp/crater.wWoLwKEsc1tD:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-1/1.27.2:/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 04:02:48.951 INFO blam! a1311dfbc63b3957181d9b78ac4b4e214fcf5ff67e77a7659222e42119986c9b
Aug 02 04:02:48.953 INFO running `"docker" "start" "-a" "a1311dfbc63b3957181d9b78ac4b4e214fcf5ff67e77a7659222e42119986c9b"`
Aug 02 04:02:50.262 INFO kablam!     Checking generic-array v0.9.0
Aug 02 04:02:51.525 INFO kablam!     Checking digest v0.7.5
Aug 02 04:02:52.007 INFO kablam!     Checking digest-hash v0.2.0
Aug 02 04:02:52.007 INFO kablam!     Checking sha2 v0.7.1
Aug 02 04:02:53.140 INFO kablam!     Checking mrkl v0.0.3 (file:///source)
Aug 02 04:02:56.325 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 04:02:56.325 INFO kablam!  --> benches/bench-builders.rs:1:1
Aug 02 04:02:56.325 INFO kablam!   |
Aug 02 04:02:56.325 INFO kablam! 1 | #![feature(test)]
Aug 02 04:02:56.325 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 04:02:56.325 INFO kablam! 
Aug 02 04:02:56.328 INFO kablam! error: aborting due to previous error
Aug 02 04:02:56.328 INFO kablam! 
Aug 02 04:02:56.328 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 04:02:56.334 INFO kablam! error: Could not compile `mrkl`.
Aug 02 04:02:56.334 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 04:02:57.047 INFO kablam! error: build failed
Aug 02 04:02:57.052 INFO kablam! su: No module specific data is present
Aug 02 04:02:58.085 INFO running `"docker" "rm" "-f" "a1311dfbc63b3957181d9b78ac4b4e214fcf5ff67e77a7659222e42119986c9b"`
Aug 02 04:02:58.245 INFO blam! a1311dfbc63b3957181d9b78ac4b4e214fcf5ff67e77a7659222e42119986c9b