message: fix(deps): update deprecated code for std::sync::Once
diff: @@ -4,7 +4,7 @@ use std::fs;
  use std::mem::ManuallyDrop;
  use std::path::{Path, PathBuf};
  use std::process::{Command, Stdio};
  -use std::sync::{MutexGuard, Once, ONCE_INIT};
  +use std::sync::{MutexGuard, Once};
  use std::thread;
  use tempfile::TempDir;
  use wasm_pack;
  @@ -24,7 +24,7 @@ impl Fixture {
  pub fn new() -> Fixture {
  // Make sure that all fixtures end up sharing a target dir, and we don't
  // recompile wasm-bindgen and friends many times over.
  - static SET_TARGET_DIR: Once = ONCE_INIT;
  + static SET_TARGET_DIR: Once = Once::new();
  let target_dir = Path::new(env!("CARGO_MANIFEST_DIR")).join("target");
  SET_TARGET_DIR.call_once(|| {
  env::set_var("CARGO_TARGET_DIR", &target_dir);
  @@ -219,7 +219,7 @@ impl Fixture {
  // to be used as well.
  self.install_wasm_opt();
  - static INSTALL_WASM_BINDGEN: Once = ONCE_INIT;
  + static INSTALL_WASM_BINDGEN: Once = Once::new();
  let cache = self.cache();
  let version = "0.2.37";
  @@ -242,7 +242,7 @@ impl Fixture {
  }
  pub fn install_wasm_opt(&self) {
  - static INSTALL_WASM_OPT: Once = ONCE_INIT;
  + static INSTALL_WASM_OPT: Once = Once::new();
  let cache = self.cache();
  INSTALL_WASM_OPT.call_once(|| {
  @@ -255,7 +255,7 @@ impl Fixture {
  /// Takes care not to re-install for every fixture, but only the one time
  /// for the whole test suite.
  pub fn install_local_cargo_generate(&self) -> PathBuf {
  - static INSTALL_CARGO_GENERATE: Once = ONCE_INIT;
  + static INSTALL_CARGO_GENERATE: Once = Once::new();
  let cache = self.cache();
  let download = || {
  @@ -281,7 +281,7 @@ impl Fixture {
  /// Takes care to ensure that only one `geckodriver` is downloaded for the whole
  /// test suite.
  pub fn install_local_geckodriver(&self) -> PathBuf {
  - static FETCH_GECKODRIVER: Once = ONCE_INIT;
  + static FETCH_GECKODRIVER: Once = Once::new();
  let cache = self.cache();
  // like above for synchronization
  @@ -296,7 +296,7 @@ impl Fixture {
  /// Takes care to ensure that only one `chromedriver` is downloaded for the whole
  /// test suite.
  pub fn install_local_chromedriver(&self) -> PathBuf {
  - static FETCH_CHROMEDRIVER: Once = ONCE_INIT;
  + static FETCH_CHROMEDRIVER: Once = Once::new();
  let cache = self.cache();
  // like above for synchronization
  