Allow switching of runtime in mobc

Author: Julius de Bruijn

Cargo.toml

@@ -55,8 +55,8 @@ tracing-log = ["tracing", "tracing-core"]
 array = []
 serde-support = ["serde", "chrono/serde"]
 
-runtime-tokio = ["tokio", "tokio-util", "sqlx/runtime-tokio", "tiberius/sql-browser-tokio"]
-runtime-async-std = ["async-std", "sqlx/runtime-async-std", "tiberius/sql-browser-async-std"]
+runtime-tokio = ["tokio", "tokio-util", "sqlx/runtime-tokio", "tiberius/sql-browser-tokio", "mobc/tokio"]
+runtime-async-std = ["async-std", "sqlx/runtime-async-std", "tiberius/sql-browser-async-std", "mobc/async-std"]
 
 [dependencies]
 url = "2.1"
@@ -85,7 +85,7 @@ log = { version = "0.4", features = ["release_max_level_trace"] }
 tracing = { version = "0.1", optional = true }
 tracing-core = { version = "0.1", optional = true }
 
-mobc = { version = "0.5.7", optional = true }
+mobc = { version = "0.5.7", optional = true, default-features = false, features = ["unstable"] }
 bytes = { version = "0.5", optional = true }
 tokio = { version = "0.2", features = ["rt-threaded", "macros", "sync"], optional = true}
 tokio-util = { version = "0.3", features = ["compat"], optional = true }