Use log 0.4 and env_logger 0.5

Author: alanhdu

Cargo.lock

@@ -8,7 +8,7 @@ repository = "https://github.com/rust-lang-nursery/docs.rs"
 build = "build.rs"
 
 [dependencies]
-log = "0.3"
+log = "0.4"
 rustc-serialize = "0.3"
 regex = "1"
 clap = "2"
@@ -18,7 +18,7 @@ time = "0.1"
 reqwest = "0.9"
 semver = "0.9"
 slug = "=0.1.1"
-env_logger = "0.4"
+env_logger = "0.5"
 magic = "0.12"
 r2d2 = "0.8"
 r2d2_postgres = "0.14"

Cargo.toml

@@ -233,16 +233,18 @@ pub fn main() {
 
 
 fn logger_init() {
-    let format = |record: &log::LogRecord| {
-        format!("{} [{}] {}: {}",
+    use std::io::Write;
+
+    let format = |buf: &mut env_logger::Formatter, record: &log::Record| {
+        writeln!(buf, "{} [{}] {}: {}",
                 time::now().strftime("%Y/%m/%d %H:%M:%S").unwrap(),
                 record.level(),
                 record.target(),
                 record.args())
     };
 
-    let mut builder = env_logger::LogBuilder::new();
+    let mut builder = env_logger::Builder::new();
     builder.format(format);
     builder.parse(&env::var("RUST_LOG").unwrap_or("cratesfyi=info".to_owned()));
-    builder.init().unwrap();
+    builder.init();
 }

src/bin/cratesfyi.rs

@@ -141,7 +141,7 @@ mod test {
 
     #[test]
     fn test_cratesfyi_metadata() {
-        let _ = env_logger::init();
+        let _ = env_logger::try_init();
         let manifest = r#"
             [package]
             name = "test"