Admin message

Due to a large amount of spam we do not allow new users to create repositories, they are "external" users. If you are a new user and want to create a repository, for example for forking GHC, open a new issue on ghc/ghc using the "get-verified" issue template

Compiler Hangs on Invalid Record Update with `Prelude.head: empty list`
## Summary In certain constellations, an invalid record update makes the compiler hang with the following output: ``` repro.hs:3:5: error: [GHC-14392] Invalid record update. No constructor in scope has all of the following fields:ghc: Uncaught exception ghc-internal:GHC.Internal.Exception.ErrorCall: Prelude.head: empty list While handling Prelude.head: empty list HasCallStack backtrace: bracket, called at compiler/GHC/Driver/Make.hs:2959:3 in ghc-9.12.2-5327:GHC.Driver.Make ``` It looks like it crashes when trying to print the offending field names. ## Steps to reproduce Putting the following text into `main.hs` and running `ghc main.hs` produces the behavior for me: ```hs import Data.Semigroup (getSum, getProduct) a = undefined { getSum = undefined, getProduct = undefined } ``` The restricted imports seem to be important. Importing all of `Data.Semigroup` does not cause the behavior. ## Expected behavior I expect the compiler to terminate with a proper error message rather crashing and hanging while printing the error message. ## Environment * GHC version used: 9.12.2 Optional: * Operating System: Arch Linux * System Architecture: x86_64
issue