[tor-bugs] #31397 [Core Tor/Tor]: Appveyor: pacman.exe : error: msys: signature … is invalid

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#31397: Appveyor: pacman.exe : error: msys: signature … is invalid
-------------------------+-------------------------------------------------
     Reporter:  teor     |      Owner:  (none)
         Type:  defect   |     Status:  new
     Priority:  Very     |  Milestone:  Tor: 0.4.1.x-final
  High                   |
    Component:  Core     |    Version:  Tor: unspecified
  Tor/Tor                |
     Severity:           |   Keywords:  041-must, tor-ci-fail, ci-
  Critical               |  environment, appveyor, Windows
Actual Points:           |  Parent ID:
       Points:  1        |   Reviewer:
      Sponsor:           |
-------------------------+-------------------------------------------------
 The msys signature is invalid, which causes all our Appveyor builds to
 fail.
 This issue first occurred around 0645 UTC Monday 12 August 2019.
 It appears to be an external issue.

 {{{
 downloading msys.db.sig...
 pacman.exe : error: msys: signature from "Alexey Pavlov (Alexpux)
 <alexpux at gmail.com>" is invalid
 At line:2 char:5
 +     & $commandPath $args 2>&1
 +     ~~~~~~~~~~~~~~~~~~~~~~~~~
     + CategoryInfo          : NotSpecified: (error: msys: si...om>" is
 invalid:String) [], RemoteException
     + FullyQualifiedErrorId : NativeCommandError

 error:
 failed to update msys (invalid or corrupted database (PGP signature))
 error: failed to synchronize all databases

 Command executed with exception: failed to update msys (invalid or
 corrupted database (PGP signature))
 error: failed to synchronize all databases
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31397>
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