Chander Ramesh (Sep 09 2026 at 08:28): Chander Ramesh (Sep 09 2026 at 08:28):[might be a false alarm, I'm new to Roc and am also learning the platform concept for the first time]
I'm on a MacOS M1, and my platform is written in Rust, not sure if that matters.
roc check --no-cache works, but then roc glue segfaults when a record has a function:
Value :: { first : (U64 -> U64) }.{
value : Value
value = { first: |x| x }
}
Reproduced the crash on:
- nightly-2026-09-05-b195f5b
- nightly-2026-09-08-39a3f89
Attached is the smallest case I could find to repro this.
Using the attachment, you can repro with this:
mkdir -p out-failing
roc check --no-cache failing/platform.roc
roc_report_cache=$(mktemp -d)
ROC_CACHE_DIR="$roc_report_cache" XDG_CACHE_HOME="$roc_report_cache" roc glue --no-cache
EmptyGlue.roc out-failing failing/platform.roc
one last tricky bit - reusing a cache accidentally can make this succeed even with --no-cache, so I ended up doing this in a new folder each time I wanted to repro. AI thinks this regression started on September 8th, but I have no idea if that's true or not.
Richard Feldman (Sep 09 2026 at 15:01):definitely a bug! I'll push a fix later today
Last updated: Sep 24 2026 at 15:59 UTC