AppVeyor continuous integration tests all fail with GPG errors #2250
Description
It seems every pull request is failing with errors in the continuous integration tests related to importing the GPG key for David Macek david.macek.0@gmail.com. For example:
:: Synchronizing package databases...
downloading mingw32.db...
downloading mingw32.db.sig...
error: mingw32: key "4A6129F4E4B84AE46ED7F635628F528CF3053E04" is unknown
:: Import PGP key 4096R/87771331B3F1FF5263856A6D974C8BE49078F532, "David Macek <david.macek.0@gmail.com>", created: 2018-01-14? [Y/n] error: mingw32: signature from "David Macek <david.macek.0@gmail.com>" is unknown trust
error: failed to update mingw32 (invalid or corrupted database (PGP signature))
downloading mingw64.db...
downloading mingw64.db.sig...
error: mingw64: signature from "David Macek <david.macek.0@gmail.com>" is unknown trust
error: failed to update mingw64 (invalid or corrupted database (PGP signature))
downloading msys.db...
downloading msys.db.sig...
error: msys: signature from "David Macek <david.macek.0@gmail.com>" is unknown trust
error: failed to update msys (invalid or corrupted database (PGP signature))
error: failed to synchronize all databases
Command exited with code 1
cat config.log
cat: config.log: No such file or directory
Command exited with code 1
Other examples:
https://ci.appveyor.com/project/stedolan/jq/builds/37026770/job/x6xltv5hp6miwx74
https://ci.appveyor.com/project/stedolan/jq/builds/36039851/job/1xkxtw6i9xqe5x2s