Remove warning when compiling only with mysql and add compatibility mode with the old docker script names

docker/start.sh

@@ -2,6 +2,9 @@
 
 if [ -r /etc/vaultwarden.sh ]; then
     . /etc/vaultwarden.sh
+elif [ -r /etc/bitwarden_rs.sh ]; then
+    echo "### You are using the old /etc/bitwarden_rs.sh script, please migrate to /etc/vaultwarden.sh ###"
+    . /etc/bitwarden_rs.sh
 fi
 
 if [ -d /etc/vaultwarden.d ]; then
@@ -10,6 +13,13 @@ if [ -d /etc/vaultwarden.d ]; then
             . $f
         fi
     done
+elif [ -d /etc/bitwarden_rs.d ]; then
+    echo "### You are using the old /etc/bitwarden_rs.d script directory, please migrate to /etc/vaultwarden.d ###"
+    for f in /etc/bitwarden_rs.d/*.sh; do
+        if [ -r $f ]; then
+            . $f
+        fi
+    done
 fi
 
 exec /vaultwarden "${@}"

src/db/mod.rs

@@ -1,4 +1,3 @@
-use chrono::prelude::*;
 use diesel::r2d2::{ConnectionManager, Pool, PooledConnection};
 use rocket::{
     http::Status,
@@ -228,13 +227,12 @@ pub fn backup_database(conn: &DbConn) -> Result<(), Error> {
             use std::path::Path;
             let db_url = CONFIG.database_url();
             let db_path = Path::new(&db_url).parent().unwrap().to_string_lossy();
-            let file_date = Utc::now().format("%Y%m%d_%H%M%S").to_string();
+            let file_date = chrono::Utc::now().format("%Y%m%d_%H%M%S").to_string();
             diesel::sql_query(format!("VACUUM INTO '{}/db_{}.sqlite3'", db_path, file_date)).execute(conn)?;
-        }
-    }
-
             Ok(())
         }
+    }
+}
 
 /// Get the SQL Server version
 pub fn get_sql_server_version(conn: &DbConn) -> String {