Commit 17eee0e47dcfdfcd99c67960432602ecf08e28f3

Azat Khuzhin 2019-04-02T23:25:08

appveyor: check intermediate powershell commands exit codes and terminate early Otherwise build errors will be ignored, i.e. if build fails but regress binary exists (copied from artifacts) it will be runned instead of newly compiled. (cherry picked from commit 93a925474d22b94e5ad75a48656033e55efe9055)