diff --git a/.gitignore b/.gitignore
index eb5a316..a9d37c5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 target
+Cargo.lock
diff --git a/.travis.yml b/.travis.yml
index 5ce94bb..5ca68aa 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,11 +6,11 @@ before_install:
 #  - sudo apt-get update
 #  - sudo apt-get install rust-nightly
   - curl -O http://static.rust-lang.org/dist/rust-nightly-x86_64-unknown-linux-gnu.tar.gz
-  - curl -O http://static.rust-lang.org/cargo-dist/cargo-nightly-linux.tar.gz
+  - curl -O http://static.rust-lang.org/cargo-dist/cargo-nightly-x86_64-unknown-linux-gnu.tar.gz
   - tar xfz rust-nightly-x86_64-unknown-linux-gnu.tar.gz
-  - tar xfz cargo-nightly-linux.tar.gz
+  - tar xfz cargo-nightly-x86_64-unknown-linux-gnu.tar.gz
   - (cd rust-nightly-x86_64-unknown-linux-gnu/ && sudo ./install.sh)
-  - (cd cargo-nightly/ && sudo ./install.sh)
+  - (cd cargo-nightly-x86_64-unknown-linux-gnu/ && sudo ./install.sh)
 script:
   - cargo build
   - cargo test
diff --git a/Cargo.toml b/Cargo.toml
index 2c5a814..363c1fe 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,6 +4,6 @@ name = "chrono"
 version = "0.1.0"
 authors = ["Kang Seonghoon <public+rust@mearie.org>"]
 
-[[lib]]
+[lib]
 
 name = "chrono"