Aug 02 01:23:28.488 INFO checking rand_num_gen-0.1.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 01:23:28.488 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:23:28.488 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:23:28.489 INFO running `"docker" "create" "-v" "/tmp/crater.oJqDdgSgcSNO:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2+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 01:23:28.741 INFO blam! 956f1d22c1dbb978bba10cfee40dae53394825dec58be734a1426b0fe525c69d
Aug 02 01:23:28.748 INFO running `"docker" "start" "-a" "956f1d22c1dbb978bba10cfee40dae53394825dec58be734a1426b0fe525c69d"`
Aug 02 01:23:29.862 INFO kablam!     Checking rand_num_gen v0.1.0 (file:///source)
Aug 02 01:23:29.865 INFO kablam!     Checking imagefmt v4.0.0
Aug 02 01:23:36.113 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:23:36.113 INFO kablam!  --> benches/bench.rs:1:1
Aug 02 01:23:36.113 INFO kablam!   |
Aug 02 01:23:36.113 INFO kablam! 1 | #![feature(test)]
Aug 02 01:23:36.113 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 01:23:36.113 INFO kablam! 
Aug 02 01:23:36.118 INFO kablam! error: aborting due to previous error
Aug 02 01:23:36.118 INFO kablam! 
Aug 02 01:23:36.118 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 01:23:36.141 INFO kablam! error: Could not compile `rand_num_gen`.
Aug 02 01:23:36.141 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 01:23:37.965 INFO kablam! error: build failed
Aug 02 01:23:37.967 INFO kablam! su: No module specific data is present
Aug 02 01:23:38.777 INFO running `"docker" "rm" "-f" "956f1d22c1dbb978bba10cfee40dae53394825dec58be734a1426b0fe525c69d"`
Aug 02 01:23:38.941 INFO blam! 956f1d22c1dbb978bba10cfee40dae53394825dec58be734a1426b0fe525c69d