Update rustc_ap_syntax

Author: nrc

Cargo.lock

@@ -1,7 +1,7 @@
 [package]
 
 name = "rustfmt-nightly"
-version = "0.99.4"
+version = "0.99.5"
 authors = ["Nicholas Cameron <[email protected]>", "The Rustfmt developers"]
 description = "Tool to find and fix Rust formatting issues"
 repository = "https://github.com/rust-lang-nursery/rustfmt"
@@ -47,9 +47,9 @@ env_logger = "0.5"
 getopts = "0.2"
 derive-new = "0.5"
 cargo_metadata = "0.6"
-rustc-ap-rustc_target = "253.0.0"
-rustc-ap-syntax = "253.0.0"
-rustc-ap-syntax_pos = "253.0.0"
+rustc-ap-rustc_target = "263.0.0"
+rustc-ap-syntax = "263.0.0"
+rustc-ap-syntax_pos = "263.0.0"
 failure = "0.1.1"
 
 [dev-dependencies]