diff --git a/Cargo.lock b/Cargo.lock
index b53820421c7..5ae563f1126 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,9 +1,9 @@
 [[package]]
 name = "aho-corasick"
-version = "0.6.3"
+version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "memchr 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -15,7 +15,7 @@ dependencies = [
  "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "dbghelp-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-demangle 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -26,7 +26,7 @@ version = "0.1.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cc 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -36,9 +36,9 @@ 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)",
  "semver 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.6 (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)",
 ]
 
 [[package]]
@@ -85,7 +85,7 @@ version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -117,12 +117,12 @@ dependencies = [
 
 [[package]]
 name = "lazy_static"
-version = "0.2.11"
+version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libc"
-version = "0.2.33"
+version = "0.2.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -132,15 +132,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "memchr"
-version = "1.0.2"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "num-traits"
-version = "0.1.40"
+version = "0.1.41"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -150,13 +150,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "regex"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "aho-corasick 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aho-corasick 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex-syntax 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "thread_local 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thread_local 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -172,7 +172,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "rustfmt-nightly"
-version = "0.3.0"
+version = "0.3.1"
 dependencies = [
  "cargo_metadata 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "derive-new 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -180,12 +180,12 @@ dependencies = [
  "env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "getopts 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 0.2.3 (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)",
  "term 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "toml 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-segmentation 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -198,7 +198,7 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.24 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -208,22 +208,22 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde"
-version = "1.0.21"
+version = "1.0.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde_derive"
-version = "1.0.21"
+version = "1.0.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive_internals 0.17.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive_internals 0.18.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "serde_derive_internals"
-version = "0.17.0"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -232,13 +232,13 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.6"
+version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "dtoa 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "itoa 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.24 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -270,10 +270,10 @@ dependencies = [
 
 [[package]]
 name = "thread_local"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -282,7 +282,7 @@ name = "toml"
 version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.24 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -324,7 +324,7 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [metadata]
-"checksum aho-corasick 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)" = "500909c4f87a9e52355b26626d890833e9e1d53ac566db76c36faa984b889699"
+"checksum aho-corasick 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)" = "d6531d44de723825aa81398a6415283229725a00fa30713812ab9323faa82fc4"
 "checksum backtrace 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "8709cc7ec06f6f0ae6c2c7e12f6ed41540781f72b488d83734978295ceae182e"
 "checksum backtrace-sys 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)" = "44585761d6161b0f57afc49482ab6bd067e4edef48c12a152c237eb0203f7661"
 "checksum cargo_metadata 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "1f56ec3e469bca7c276f2eea015aa05c5e381356febdbb0683c2580189604537"
@@ -339,25 +339,25 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum getopts 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)" = "65922871abd2f101a2eb0eaebadc66668e54a87ad9c3dd82520b5f86ede5eff9"
 "checksum itoa 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "8324a32baf01e2ae060e9de58ed0bc2320c9a2833491ee36cd3b4c414de4db8c"
 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
-"checksum lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "76f033c7ad61445c5b347c7382dd1237847eb1bce590fe50365dcb33d546be73"
-"checksum libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)" = "5ba3df4dcb460b9dfbd070d41c94c19209620c191b0340b929ce748a2bcd42d2"
+"checksum lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c8f31047daa365f19be14b47c29df4f7c3b581832407daabe6ae77397619237d"
+"checksum libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)" = "36fbc8a8929c632868295d0178dd8f63fc423fd7537ad0738372bd010b3ac9b0"
 "checksum log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "880f77541efa6e5cc74e76910c9884d9859683118839d6a1dc3b11e63512565b"
-"checksum memchr 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "148fab2e51b4f1cfc66da2a7c32981d1d3c083a803978268bb11fe4b86925e7a"
-"checksum num-traits 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)" = "99843c856d68d8b4313b03a17e33c4bb42ae8f6610ea81b28abe076ac721b9b0"
+"checksum memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "796fba70e76612589ed2ce7f45282f5af869e0fdd7cc6199fa1aa1f1d591ba9d"
+"checksum num-traits 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)" = "cacfcab5eb48250ee7d0c7896b51a2c5eec99c1feea5f32025635f5ae4b00070"
 "checksum quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"
-"checksum regex 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1731164734096285ec2a5ec7fea5248ae2f5485b3feeb0115af4fda2183b2d1b"
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 "checksum semver 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bee2bc909ab2d8d60dab26e8cad85b25d795b14603a0dcb627b78b9d30b6454b"
 "checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
-"checksum serde 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)" = "6eda663e865517ee783b0891a3f6eb3a253e0b0dabb46418969ee9635beadd9e"
-"checksum serde_derive 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)" = "652bc323d694dc925829725ec6c890156d8e70ae5202919869cb00fe2eff3788"
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-"checksum serde_json 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "e4586746d1974a030c48919731ecffd0ed28d0c40749d0d18d43b3a7d6c9b20e"
+"checksum serde 1.0.24 (registry+https://github.com/rust-lang/crates.io-index)" = "1c57ab4ec5fa85d08aaf8ed9245899d9bbdd66768945b21113b84d5f595cb6a1"
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+"checksum serde_json 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)" = "7cf5b0b5b4bd22eeecb7e01ac2e1225c7ef5e4272b79ee28a8392a8c8489c839"
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 "checksum unicode-segmentation 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a8083c594e02b8ae1654ae26f0ade5158b119bd88ad0e8227a5d8fcd72407946"
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diff --git a/Cargo.toml b/Cargo.toml
index 79acfac5b2e..797c019dd96 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 
 name = "rustfmt-nightly"
-version = "0.3.0"
+version = "0.3.1"
 authors = ["Nicholas Cameron <ncameron@mozilla.com>", "The Rustfmt developers"]
 description = "Tool to find and fix Rust formatting issues"
 repository = "https://github.com/rust-lang-nursery/rustfmt"