diff --git a/Cargo.lock b/Cargo.lock
index 0b8ad810882..2fea848a7bf 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -125,7 +125,7 @@ dependencies = [
 
 [[package]]
 name = "cargo_metadata"
-version = "0.3.3"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "error-chain 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -891,7 +891,7 @@ dependencies = [
  "rls-rustc 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rls-span 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rls-vfs 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustfmt-nightly 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustfmt-nightly 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.24 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.24 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -958,10 +958,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "rustfmt-nightly"
-version = "0.3.3"
+version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cargo_metadata 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cargo_metadata 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "derive-new 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "diff 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1403,7 +1403,7 @@ dependencies = [
 "checksum bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4efd02e230a02e18f92fc2735f44597385ed02ad8f831e7c1c1156ee5e1ab3a5"
 "checksum bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b3c30d3802dfb7281680d6285f2ccdaa8c2d8fee41f93805dba5c4cf50dc23cf"
 "checksum cargo 0.25.0 (git+https://github.com/rust-lang/cargo)" = "<none>"
-"checksum cargo_metadata 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "1f56ec3e469bca7c276f2eea015aa05c5e381356febdbb0683c2580189604537"
+"checksum cargo_metadata 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "20d6fb2b5574726329c85cdba0df0347fddfec3cf9c8b588f9931708280f5643"
 "checksum cc 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a9b13a57efd6b30ecd6598ebdb302cca617930b5470647570468a65d12ef9719"
 "checksum cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "d4c819a1287eb618df47cc647173c5c4c66ba19d888a6e50d605672aed3140de"
 "checksum clap 2.29.0 (registry+https://github.com/rust-lang/crates.io-index)" = "110d43e343eb29f4f51c1db31beb879d546db27998577e5715270a54bcf41d3f"
@@ -1498,7 +1498,7 @@ dependencies = [
 "checksum rls-vfs 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "ffd34691a510938bb67fe0444fb363103c73ffb31c121d1e16bc92d8945ea8ff"
 "checksum rustc-demangle 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "aee45432acc62f7b9a108cc054142dac51f979e69e71ddce7d6fc7adf29e817e"
 "checksum rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)" = "dcf128d1287d2ea9d80910b5f1120d0b8eede3fbf1abe91c40d39ea7d51e6fda"
-"checksum rustfmt-nightly 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "e20575c62a43628b9f875c4630834d19b577b2ce8c3939f2d84fe9de39d905c8"
+"checksum rustfmt-nightly 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "a1fb3fd656e881c3403c318674d25317034d7ffd30dd36dfcf4b7e09f3bf8ebd"
 "checksum same-file 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "d931a44fdaa43b8637009e7632a02adc4f2b2e0733c08caa4cf00e8da4a117a7"
 "checksum scoped-tls 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f417c22df063e9450888a7561788e9bd46d3bb3c1466435b4eccb903807f147d"
 "checksum scopeguard 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "59a076157c1e2dc561d8de585151ee6965d910dd4dcb5dabb7ae3e83981a6c57"