indexer: Update crates to latest version

With the exception of Hyper, because the new tokio-based version is...
different.

indexer/src/sys_freebsd1.rs

@@ -1,5 +1,4 @@
 use std::collections::HashSet;
-use std::ascii::AsciiExt;
 use std::io::Result;
 use regex::Regex;
 use postgres;