Warren Hastings (1732-1818) was the son of a Penyston (other spellings also occur) Hastings.
Pennyston Hastings married Priscilla Gardiner at Guiting Power, Gloucestershire 18 January 1703/4, and baptised a son of the same name there on 27 February 1704/5.
The elder Penyston Hastings is identified in the register as "Clerk", so I am not sure whether it is this man marrying Hester Warren in 1730 at Twyning, who is also identified as "Clerk", or his son.
The CofE database seems to show only one clergyman of that name.