Aug 01 18:06:09.820 INFO checking zr-0.6.4 against 1.27.2+tmplazy for lazy_static-1
Aug 01 18:06:09.820 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 18:06:09.820 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 18:06:09.820 INFO running `"docker" "create" "-v" "/tmp/crater.2X118uhU0QKo:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2+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 01 18:06:10.049 INFO blam! 28610a7e2afcf7a2d0fac221aa2e716c89f08c2a373e5a50b8d84f650677a1e0
Aug 01 18:06:10.050 INFO running `"docker" "start" "-a" "28610a7e2afcf7a2d0fac221aa2e716c89f08c2a373e5a50b8d84f650677a1e0"`
Aug 01 18:06:11.006 INFO kablam!     Checking zr v0.6.4 (file:///source)
Aug 01 18:06:12.989 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 18:06:12.989 INFO kablam!  --> benches/bench.rs:1:1
Aug 01 18:06:12.989 INFO kablam!   |
Aug 01 18:06:12.989 INFO kablam! 1 | #![feature(test)] extern crate test;
Aug 01 18:06:12.989 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 18:06:13.000 INFO kablam! 
Aug 01 18:06:13.001 INFO kablam! error: aborting due to previous error
Aug 01 18:06:13.001 INFO kablam! 
Aug 01 18:06:13.002 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 18:06:13.027 INFO kablam! error: Could not compile `zr`.
Aug 01 18:06:13.028 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 18:06:13.499 INFO kablam! error: build failed
Aug 01 18:06:13.500 INFO kablam! su: No module specific data is present
Aug 01 18:06:14.023 INFO running `"docker" "rm" "-f" "28610a7e2afcf7a2d0fac221aa2e716c89f08c2a373e5a50b8d84f650677a1e0"`
Aug 01 18:06:14.165 INFO blam! 28610a7e2afcf7a2d0fac221aa2e716c89f08c2a373e5a50b8d84f650677a1e0