logger: Limit std-log level

Cargo.lock

@@ -334,6 +334,7 @@ dependencies = [
  "indexmap",
  "lazy_static",
  "libsystemd 0.5.0",
+ "log",
  "log-panics",
  "png",
  "regex",

Cargo.toml

@@ -14,6 +14,7 @@ slog-async = "2.7"
 slog-journald = "2.2.0"
 slog-scope = "4.4"
 slog-stdlog = "4.1"
+log = "0.4"
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 sendfd = "0.4.1"

src/logger/mod.rs

@@ -19,7 +19,12 @@ pub fn init_logger() -> Result<LogState> {
     let logger = slog::Logger::root(std::sync::Mutex::new(drain).fuse(), slog::o!());
 
     let _guard = slog_scope::set_global_logger(logger);
-    slog_stdlog::init().unwrap();
+    slog_stdlog::init_with_level(if cfg!(debug_assertions) {
+        log::Level::Debug
+    } else {
+        log::Level::Info
+    })
+    .unwrap();
     log_panics::init();
 
     slog_scope::info!("Version: {}", std::env!("CARGO_PKG_VERSION"));