DNS Error for HTTP files with many columns

[jupiter]

Similar to #12, we get:

thread '<unnamed>' panicked at 'called `Result::unwrap()` on an `Err` value: reqwest::Error { kind: Request, url: Url { scheme: "https", cannot_be_a_base: false, username: "", password: None, host: Some(Domain("optimus-staging-results-table-s-3-bucket.s3.us-east-1.amazonaws.com")), port: None, path: "..."), fragment: None }, source: hyper::Error(Connect, ConnectError("dns error", Custom { kind: Uncategorized, error: "failed to lookup address information: nodename nor servname provided, or not known" })) }', src/http_reader.rs:72:10