cargo: require time 0.1.34

This is the lowest version that excludes gcc 0.1.0 which has compilation
errors on today's toolchains.

Author: mathstuf

tokio/Cargo.toml

@@ -93,7 +93,7 @@ rand = "0.7.2"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 tempfile = "3.1.0"
-time = "0.1"
+time = "0.1.34"
 
 [package.metadata.docs.rs]
 all-features = true