Replace the lazy_static by once_cell crate

Cargo.lock

@@ -83,7 +83,7 @@ name = "autarco-scraper"
 version = "0.1.1"
 dependencies = [
  "color-eyre",
- "lazy_static",
+ "once_cell",
  "reqwest",
  "rocket",
  "serde",
@@ -817,9 +817,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.8.0"
+version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "692fcb63b64b1758029e0a96ee63e049ce8c5948587f2f7208df04625e5f6b56"
+checksum = "da32515d9f6e6e489d7bc9d84c71b060db7247dc035bbe44eac88cf87486d8d5"
 
 [[package]]
 name = "openssl"

Cargo.toml

@@ -6,7 +6,7 @@ edition = "2018"
 
 [dependencies]
 color-eyre = "0.5.6"
-lazy_static = "1.4.0"
+once_cell = "1.9.0"
 reqwest = { version = "0.11", features = ["cookies", "json"] }
 rocket = { version = "0.5.0-rc.1", features = ["json"] }
 serde = "1.0.116"

src/main.rs

@@ -2,7 +2,7 @@ use std::path::Path;
 use std::sync::Mutex;
 
 use color_eyre::Result;
-use lazy_static::lazy_static;
+use once_cell::sync::Lazy;
 use rocket::serde::json::Json;
 use rocket::tokio::fs::File;
 use rocket::tokio::io::AsyncReadExt;
@@ -33,6 +33,9 @@ struct Config {
     site_id: String,
 }
 
+/// The global, concurrently accessible current status.
+static STATUS: Lazy<Mutex<Option<Status>>> = Lazy::new(|| Mutex::new(None));
+
 /// Loads the configuration.
 ///
 /// The configuration file `autarco.toml` should be located in the project path.
@@ -63,11 +66,6 @@ struct Status {
     last_updated: u64,
 }
 
-lazy_static! {
-    /// The concurrently accessible current status.
-    static ref STATUS: Mutex<Option<Status>> = Mutex::new(None);
-}
-
 /// Returns the current (last known) status.
 #[get("/", format = "application/json")]
 async fn status() -> Option<Json<Status>> {