Auto merge of #1931 - JohnTitor:powerpc, r=JohnTitor

Revive `powerpc-unknown-linux-gnu` CI

Fix #1425

Author: bors

.github/workflows/bors.yml

@@ -119,8 +119,7 @@ jobs:
           mips64-unknown-linux-gnuabi64,
           mips64el-unknown-linux-gnuabi64,
           mipsel-unknown-linux-musl,
-          # FIXME: Figure out why this is disabled.
-          #powerpc-unknown-linux-gnu,
+          powerpc-unknown-linux-gnu,
           powerpc64-unknown-linux-gnu,
           powerpc64le-unknown-linux-gnu,
           s390x-unknown-linux-gnu,