Aug 02 05:43:18.603 INFO checking leb128-0.2.3 against 1.27.2 for lazy_static-1
Aug 02 05:43:18.604 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:43:18.604 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:43:18.604 INFO running `"docker" "create" "-v" "/tmp/crater.ETefh2jFQQ9G:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2:/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 05:43:18.857 INFO blam! 1707816133d7585ce9e968fbd5553dab1ec493a127ce069c146d4bcd7008b836
Aug 02 05:43:18.859 INFO running `"docker" "start" "-a" "1707816133d7585ce9e968fbd5553dab1ec493a127ce069c146d4bcd7008b836"`
Aug 02 05:43:20.493 INFO kablam!     Checking leb128 v0.2.3 (file:///source)
Aug 02 05:43:22.316 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:43:22.316 INFO kablam!  --> benches/bench.rs:1:1
Aug 02 05:43:22.316 INFO kablam!   |
Aug 02 05:43:22.316 INFO kablam! 1 | #![feature(test)]
Aug 02 05:43:22.316 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 05:43:22.317 INFO kablam! 
Aug 02 05:43:22.318 INFO kablam! error: aborting due to previous error
Aug 02 05:43:22.318 INFO kablam! 
Aug 02 05:43:22.318 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 05:43:22.326 INFO kablam! error: Could not compile `leb128`.
Aug 02 05:43:22.327 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 05:43:22.929 INFO kablam! error: build failed
Aug 02 05:43:22.929 INFO kablam! su: No module specific data is present
Aug 02 05:43:23.625 INFO running `"docker" "rm" "-f" "1707816133d7585ce9e968fbd5553dab1ec493a127ce069c146d4bcd7008b836"`
Aug 02 05:43:23.815 INFO blam! 1707816133d7585ce9e968fbd5553dab1ec493a127ce069c146d4bcd7008b836