Upgrade env_logger

src/librustc_driver/Cargo.toml

@@ -12,7 +12,7 @@ crate-type = ["dylib"]
 arena = { path = "../libarena" }
 graphviz = { path = "../libgraphviz" }
 log = { version = "0.4", features = ["release_max_level_info"] }
-env_logger = { version = "0.4", default-features = false }
+env_logger = { version = "0.5.1", default-features = false }
 rustc = { path = "../librustc" }
 rustc_allocator = { path = "../librustc_allocator" }
 rustc_back = { path = "../librustc_back" }

src/librustc_driver/lib.rs

@@ -1301,7 +1301,7 @@ pub fn get_args() -> Vec<String> {
 }
 
 pub fn main() {
-    env_logger::init().unwrap();
+    env_logger::init();
     let result = run(|| run_compiler(&get_args(),
                                      &mut RustcDefaultCalls,
                                      None,

src/librustdoc/lib.rs

@@ -104,7 +104,7 @@ struct Output {
 
 pub fn main() {
     const STACK_SIZE: usize = 32_000_000; // 32MB
-    env_logger::init().unwrap();
+    env_logger::init();
     let res = std::thread::Builder::new().stack_size(STACK_SIZE).spawn(move || {
         get_args().map(|args| main_args(&args)).unwrap_or(1)
     }).unwrap().join().unwrap_or(101);

src/tools/compiletest/Cargo.toml

@@ -5,7 +5,7 @@ version = "0.0.0"
 
 [dependencies]
 diff = "0.1.10"
-env_logger = { version = "0.4", default-features = false }
+env_logger = { version = "0.5.1", default-features = false }
 filetime = "0.1"
 getopts = "0.2"
 log = "0.4"

src/tools/compiletest/src/main.rs

@@ -51,7 +51,7 @@ mod raise_fd_limit;
 mod read2;
 
 fn main() {
-    env_logger::init().unwrap();
+    env_logger::init();
 
     let config = parse_config(env::args().collect());