Aug 01 19:40:43.587 INFO checking unbounded-spsc-0.1.4 against 1.27.2 for lazy_static-1 Aug 01 19:40:43.587 INFO running: cargo +1.27.2 check --frozen --all --all-targets Aug 01 19:40:43.587 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets Aug 01 19:40:43.587 INFO running `"docker" "create" "-v" "/tmp/crater.O0KQdpRHjRJl:/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 01 19:40:43.827 INFO blam! fab16653921b7ad70df9e3babb0e9fd8e6211064b76fb356055e43c071dd81a3 Aug 01 19:40:43.830 INFO running `"docker" "start" "-a" "fab16653921b7ad70df9e3babb0e9fd8e6211064b76fb356055e43c071dd81a3"` Aug 01 19:40:45.334 INFO kablam! Checking bounded-spsc-queue v0.3.0 Aug 01 19:40:45.559 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel Aug 01 19:40:45.559 INFO kablam! --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bounded-spsc-queue-0.3.0/src/lib.rs:1:1 Aug 01 19:40:45.559 INFO kablam! | Aug 01 19:40:45.559 INFO kablam! 1 | #![feature(allocator_api)] Aug 01 19:40:45.559 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^ Aug 01 19:40:45.559 INFO kablam! Aug 01 19:40:45.561 INFO kablam! error: aborting due to previous error Aug 01 19:40:45.561 INFO kablam! Aug 01 19:40:45.562 INFO kablam! For more information about this error, try `rustc --explain E0554`. Aug 01 19:40:45.568 INFO kablam! error: Could not compile `bounded-spsc-queue`. Aug 01 19:40:45.568 INFO kablam! Aug 01 19:40:45.568 INFO kablam! To learn more, run the command again with --verbose. Aug 01 19:40:45.570 INFO kablam! su: No module specific data is present Aug 01 19:40:45.999 INFO running `"docker" "rm" "-f" "fab16653921b7ad70df9e3babb0e9fd8e6211064b76fb356055e43c071dd81a3"` Aug 01 19:40:46.096 INFO blam! fab16653921b7ad70df9e3babb0e9fd8e6211064b76fb356055e43c071dd81a3