Actually fix feature tests

Author: sfackler

.travis.yml

@@ -10,4 +10,4 @@ before_script:
 - "./.travis/setup.sh"
 script:
 - cargo test
-- cargo test --features $(cargo read-manifest | jq -r '.features|keys|map(select(. != "with-security-framework"))|join(" ")')
+- cargo test --features "$(cargo read-manifest | jq -r '.features|keys|map(select(. != "with-security-framework"))|join(" ")')"

tests/types/mod.rs

@@ -3,10 +3,9 @@ use std::error;
 use std::f32;
 use std::f64;
 use std::fmt;
-use std::io::{Read, Write};
 use std::result;
 
-use postgres::{Connection, TlsMode, Result};
+use postgres::{Connection, TlsMode};
 use postgres::error::Error;
 use postgres::types::{ToSql, FromSql, WrongType, Type, IsNull, Kind, SessionInfo};