WIP: Drone CI config

@@ -0,0 +37,4 @@
+        mount: [ "~/.cargo/", "./target" ]
+    },
+    volumes: [ { name: "cache", path: "/tmp/cache" } ]
+};

@@ -0,0 +52,4 @@
+        mount: [ "~/.cargo/", "./target" ]
+    },
+    volumes: [ { name: "cache", path: "/tmp/cache" } ]
+};

@@ -0,0 +66,4 @@
+// otherwise it does nothing.
+local startDb(db) = if db == "postgres" then {
+    name: "start-db",
+    image: "postgres:9.6-alpine",