topic for testing
issue for zulip bot test
I figured it was good to create some more awareness of issues that get the P-high label and encourage discussion of them etc.
Good idea!
Roc docs hangs indefinitely for any package depending on another package
Implement new lambda syntax
Implement new lambda syntax
Should this be a high priority issue?
I think high priority should refer to stuff that's blocking other people. I presume this isn't blocking anyone, so I'd say no
Sorry I didn’t know we had this bot. I’ll remove the label
language server Option::unwrap() on a None value
Very bad error message when doing basic-cli upgrade
pizza pipe not working
Expected symbol plume.Scatter.56 to have a layout.
Garbled string when using List destructuring with Stdout
Compiler panic when returning [] from _ -> List List _
language server crashes with unicode import
LINKER FAILED after git clean -fdx
roc glue fails with "runtime error" on nightly 2026-09-23 (c7852fd), even DebugGlue on test/glue/cli-main; 09-22 is fine
Panic: canonical type key row normalization found duplicate tags
Undeclared nominal type variable with where constraint panics in NodeStore.getStatement
Interpolating a reserved word in an imported module panics
A shared object cache segfaults a second app's dev build
Build cache: instantiation widened a closed tag union panic, and a cache shared between apps silently miscompiles the next app
roc check and roc build --opt=dev pass but roc build panics with "successful completed root was removed before guard completion" when an unannotated caller of a from_quote method is used with ?
roc build reports a rejected from_quote literal when the literal's type argument is a record or tag union from the call
roc check segfaults (release-safe: "reached unreachable code") when a from_quote where clause asks for a derived parser_for of a record row that the caller returns inside a tag union (follow-up to #11674)
Compiler hangs building a derived parser or encoder whose field is a custom-coded nominal type backed by a List
roc build prints a rejected from_quote literal's message as freed memory when a later literal of the same generic type allocates
"unconditional condition" warning on a condition that depends on runtime input when it calls a local closure that captures a runtime value
roc check and roc build panic with "instantiation widened a closed tag union" when a Json.parse decoder is passed through two functions
roc check and roc build panic on a release-safe compiler ("checked target contract differed from substitution-derived evidence kind") when a value is both passed to a callback field and used for method dispatch
A custom parser_for that is generic over the format fails to type-check as a record field
A mistyped platform requirement segfaults when its nominal type holds a tag-union alias
roc check segfaults (release-safe: "reached unreachable code") when a nominal method, called twice from a generic function, dispatches a method on a value from its type parameter
roc check and a release build accept a record field annotated _ holding a lambda that calls map, but a safe build trips the derived-map-payload invariant
Error creating a list of records with default fields
Illegal instruction (core dumped) after installing Roc in clean Debian container on a MacBook
roc glue segfaults on input that roc check reports cleanly — only on a cold cache
Dev backend frees still-referenced data since ARC worker emission (2e8927a9df1); worker count also changes emitted LIR
roc bump rejects public transparent aliases backed by unexposed transparent aliases
Panic generating glue
Roc fmt wrongly removes parentheses around record field containing a function
Release-safe roc check panics on var $n = 1 + 1 (debug: "graph-free closed dispatch produced a graph-backed result"), release-fast checks and runs it
Last updated: Oct 15 2026 at 17:56 UTC