message: db: show errors happening when deleting a file from S3
diff: @@ -97,7 +97,8 @@ fn delete_prefix_from_s3(s3: &S3Client, name: &str) -> Result<(), Error> {
  version_id: None,
  })
  .collect::<Vec<_>>();
  - s3.delete_objects(DeleteObjectsRequest {
  + let resp = s3
  + .delete_objects(DeleteObjectsRequest {
  bucket: S3_BUCKET_NAME.into(),
  delete: rusoto_s3::Delete {
  objects: to_delete,
  @@ -106,6 +107,12 @@ fn delete_prefix_from_s3(s3: &S3Client, name: &str) -> Result<(), Error> {
  ..DeleteObjectsRequest::default()
  })
  .sync()?;
  + if let Some(errs) = resp.errors {
  + for err in &errs {
  + log::error!("error deleting file from s3: {:?}", err);
  + }
  + failure::bail!("uploading to s3 failed");
  + }
  continuation_token = list.continuation_token;
  if continuation_token.is_none() {
  