Stackage HEAD detected a suspicious change

Here it goes:

==== SUSPICIOUS CHANGES

stm-delay:
  at nightly-2018-04-05-5161609117c16cb7b29b2b8b1cd41e74341d4137.csv
    build succeeded, 2 test suites passed, 0 test suites failed
  at nightly-2018-04-05-3cfb12d8adac37e5565d66fd173e4648cc041e65.csv
    build succeeded, 1 test suites passed, 0 test suites failed

There are changes that need attention of GHC team.

This not necessarily indicates a bug or regression, but the fact is, between these two commits 1 test suite stopped building. Maybe it's worth some investigation.

Trac metadata

Trac field	Value
Version	8.2.2
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture

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Stackage HEAD detected a suspicious change