fix: if both tracing and logging is enabled, funnel logs through tracing

Cargo.toml

@@ -36,7 +36,7 @@ required-features = ["log", "unstable"]
 default = ["log"]
 # TODO: use "dep:{tracing-subscriber,evn_logger}" once our MSRV is 1.60 or higher.
 trace = ["tracing-subscriber", "test-log-macros/trace"]
-log = ["env_logger", "test-log-macros/log"]
+log = ["env_logger", "test-log-macros/log", "tracing-subscriber?/tracing-log"]
 # Enable unstable features. These are generally exempt from any semantic
 # versioning guarantees.
 unstable = ["test-log-macros/unstable"]

macros/src/lib.rs

@@ -151,7 +151,7 @@ impl AttributeArgs {
 
 
 /// Expand the initialization code for the `log` crate.
-#[cfg(feature = "log")]
+#[cfg(all(feature = "log", not(feature = "trace")))]
 fn expand_logging_init(attribute_args: &AttributeArgs) -> Tokens {
   let add_default_log_filter = if let Some(default_log_filter) = &attribute_args.default_log_filter
   {
@@ -172,7 +172,7 @@ fn expand_logging_init(attribute_args: &AttributeArgs) -> Tokens {
   }
 }
 
-#[cfg(not(feature = "log"))]
+#[cfg(not(all(feature = "log", not(feature = "trace"))))]
 fn expand_logging_init(_attribute_args: &AttributeArgs) -> Tokens {
   quote! {}
 }