test: rename dl_s3_configs() to dl_build_info()

The fact that it's in s3 isn't really important and it's more
appropriate to call it "build info" than "configs", since the files
contain metadata about successful build jobs.

test/scripts/check-build-coverage

@@ -60,7 +60,7 @@ def main():
     parser.add_argument("cachedir", type=str, help="path to download the build test cache")
     args = parser.parse_args()
     cachedir = args.cachedir
-    _, ok = testlib.dl_s3_configs(cachedir)
+    _, ok = testlib.dl_build_info(cachedir)
     # fail the job if the sync failed
     if not ok:
         sys.exit(1)

test/scripts/imgtestlib.py

@@ -105,7 +105,7 @@ def list_images(distros=None, arches=None, images=None):
     return json.loads(out)
 
 
-def dl_s3_configs(destination, distro=None, arch=None):
+def dl_build_info(destination, distro=None, arch=None):
     """
     Downloads all the configs from the s3 bucket.
     """
@@ -128,6 +128,7 @@ def dl_s3_configs(destination, distro=None, arch=None):
     ok = job.returncode == 0
     if not ok:
         print(f"⚠️ Failed to sync contents of {s3url}:")
+        print(job.stdout.decode())
         print(job.stderr.decode())
     return job.stdout.decode(), ok
 
@@ -276,7 +277,7 @@ def filter_builds(manifests, distro=None, arch=None, skip_ostree_pull=True):
     os.makedirs(dl_path, exist_ok=True)
     build_requests = []
 
-    out, dl_ok = dl_s3_configs(dl_path, distro=distro, arch=arch)
+    out, dl_ok = dl_build_info(dl_path, distro=distro, arch=arch)
     # continue even if the dl failed; will build all configs
     if dl_ok:
         # print output which includes list of downloaded files for CI job log