parse_stream() has no indication of parsing error and instead issues cryptic warning message

[abuchmueller]

> z <- parse_stream("fromUK.json")
opening fileoldClasskRp.connection input connection.
 Found 2918 records...closing fileoldClasskRp.connection input connection.
 Imported 22015 records. Simplifying...
> z <- jsonlite::stream_in(file("fromUK.json"))
opening fileoldClasskRp.connection input connection.
 Found 2918 records...Error: parse error: premature EOF
                                       {"created_at":"Thu Mar 11 15:20
                     (right here) ------^
closing fileoldClasskRp.connection input connection.

Parsing error at line 2918. However there is no indication of what exactly is happening since parse_stream() only issues a connection warning.