zeromq_ada 4.1.5

We encountered an error during the generation of documentation:
<GenericSubpDecl ["Initialize_Generic"] zmq-messages.ads:83:4-88:59>
<GenericSubpDecl ["Initialize_Generic_With_Hint"] zmq-messages.ads:91:4-100:65>
<GenericSubpDecl ["GetData_Generic"] zmq-messages.ads:119:4-122:47>
<GenericSubpDecl ["Process_Data_Generic"] zmq-messages.ads:123:4-127:54>
<PragmaNode zmq-sockets-typed_generic.ads:34:4-35:78>
<GenericSubpDecl ["Send_Generic"] zmq-sockets.ads:593:4-597:64>
<ExceptionDecl ["ZMQ_Error"] zmq.ads:39:4-39:26>

raised ADA.IO_EXCEPTIONS.USE_ERROR : Error while writing to the file (Copy failed from /tmp/vfs-229919-btysoghm to /home/chouteau/src/github/alire/docs.ada.dev/crate/zeromq_ada/4.1.5/zmq((ada-streams-stream_element_array) -> standard-str
ERROR: Command ["gnatdoc4", "-P", "zmq.gpr", "--output-dir", "/home/chouteau/src/github/alire/docs.ada.dev/crate/zeromq_ada/4.1.5", "--front-matter", "crate: zeromq_ada", "--no-subprojects"] exited with code 1