Aug 17 20:06:11.270 INFO checking heapless-0.3.6 against try#a5d98b025f62ace80fe9d2a15781f900fc42515e for pr-53426
Aug 17 20:06:11.270 INFO running: cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets
Aug 17 20:06:11.270 INFO creating container for: cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets
Aug 17 20:06:11.270 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53426/try#a5d98b025f62ace80fe9d2a15781f900fc42515e:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-5/try#a5d98b025f62ace80fe9d2a15781f900fc42515e:/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" "-e" "USER_ID=500" "-e" "CMD=cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 17 20:06:11.503 INFO blam! 2a5d3512abb21363c7b2f7f4250c535f2eeab83f3848183b1abbfa1c2677afa3
Aug 17 20:06:11.504 INFO running `"docker" "start" "-a" "2a5d3512abb21363c7b2f7f4250c535f2eeab83f3848183b1abbfa1c2677afa3"`
Aug 17 20:06:12.573 INFO kablam!     Checking hash32 v0.1.0
Aug 17 20:06:13.484 INFO kablam!     Checking heapless v0.3.6 (file:///source)
Aug 17 20:06:19.208 INFO kablam! error[E0658]: unions in const fn are unstable (see issue #51909)
Aug 17 20:06:19.208 INFO kablam!   --> src/__core.rs:43:9
Aug 17 20:06:19.208 INFO kablam!    |
Aug 17 20:06:19.208 INFO kablam! 43 |         U { none: () }.some
Aug 17 20:06:19.208 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^
Aug 17 20:06:19.218 INFO kablam!    |
Aug 17 20:06:19.219 INFO kablam!    = help: add #![feature(const_fn_union)] to the crate attributes to enable
Aug 17 20:06:19.219 INFO kablam! 
Aug 17 20:06:19.237 INFO kablam! error: aborting due to previous error
Aug 17 20:06:19.237 INFO kablam! 
Aug 17 20:06:19.237 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 17 20:06:19.246 INFO kablam! error: Could not compile `heapless`.
Aug 17 20:06:19.246 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 17 20:06:20.284 INFO kablam! error[E0658]: unions in const fn are unstable (see issue #51909)
Aug 17 20:06:20.284 INFO kablam!   --> src/__core.rs:43:9
Aug 17 20:06:20.284 INFO kablam!    |
Aug 17 20:06:20.284 INFO kablam! 43 |         U { none: () }.some
Aug 17 20:06:20.284 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^
Aug 17 20:06:20.284 INFO kablam!    |
Aug 17 20:06:20.284 INFO kablam!    = help: add #![feature(const_fn_union)] to the crate attributes to enable
Aug 17 20:06:20.285 INFO kablam! 
Aug 17 20:06:20.313 INFO kablam! error: aborting due to previous error
Aug 17 20:06:20.313 INFO kablam! 
Aug 17 20:06:20.313 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 17 20:06:20.323 INFO kablam! error: Could not compile `heapless`.
Aug 17 20:06:20.323 INFO kablam! 
Aug 17 20:06:20.323 INFO kablam! To learn more, run the command again with --verbose.
Aug 17 20:06:20.325 INFO kablam! su: No module specific data is present
Aug 17 20:06:20.965 INFO running `"docker" "rm" "-f" "2a5d3512abb21363c7b2f7f4250c535f2eeab83f3848183b1abbfa1c2677afa3"`
Aug 17 20:06:21.135 INFO blam! 2a5d3512abb21363c7b2f7f4250c535f2eeab83f3848183b1abbfa1c2677afa3