Unable to compile with Ponyc 0.15.0

[tj800x]

$ stable env ponyc --debug zmq/test

Building builtin -> /usr/local/lib/pony/0.15.0-d603ecce/packages/builtin
Building zmq/test -> /Users/thomasjohnson/Projects/pony/pony-zmq/zmq/test
Building ponytest -> /usr/local/lib/pony/0.15.0-d603ecce/packages/ponytest
Building time -> /usr/local/lib/pony/0.15.0-d603ecce/packages/time
Building collections -> /usr/local/lib/pony/0.15.0-d603ecce/packages/collections
Building ../z85 -> /Users/thomasjohnson/Projects/pony/pony-zmq/zmq/z85
Building .. -> /Users/thomasjohnson/Projects/pony/pony-zmq/zmq
Building inspect -> /Users/thomasjohnson/Projects/pony/pony-zmq/.deps/jemc/pony-inspect/inspect
Building format -> /usr/local/lib/pony/0.15.0-d603ecce/packages/format
Building zmtp -> /Users/thomasjohnson/Projects/pony/pony-zmq/zmq/zmtp
Building sodium -> /Users/thomasjohnson/Projects/pony/pony-zmq/.deps/jemc/pony-sodium/sodium
Building buffered -> /usr/local/lib/pony/0.15.0-d603ecce/packages/buffered
Building net -> /usr/local/lib/pony/0.15.0-d603ecce/packages/net
Generating
Reachability
Selector painting
Data prototypes
Data types
Function prototypes
Functions

src/libponyc/codegen/genbox.c:15: gen_box: Assertion t != NULL failed.

[jemc]

Yep, I see the same error on latest pony master.

I'll try to find a minimal repo and file it upstream.

[lucasfcnunes]

Working on "that" (ponyc 0.51) on #8