Specify u64 explicitly

Signed-off-by: Max Inden <mail@max-inden.de>

Author: mxinden

src/collector.rs

@@ -23,7 +23,7 @@ use crate::encoding::DescriptorEncoder;
 ///
 /// impl Collector for MyCollector {
 ///     fn encode(&self, mut encoder: DescriptorEncoder) -> Result<(), std::fmt::Error> {
-///         let counter = ConstCounter::new(42);
+///         let counter = ConstCounter::new(42u64);
 ///         let metric_encoder = encoder.encode_descriptor(
 ///             "my_counter",
 ///             "some help",

src/encoding/text.rs

@@ -1014,7 +1014,7 @@ mod tests {
                 &self,
                 mut encoder: crate::encoding::DescriptorEncoder,
             ) -> Result<(), std::fmt::Error> {
-                let counter = crate::metrics::counter::ConstCounter::new(42);
+                let counter = crate::metrics::counter::ConstCounter::new(42u64);
                 let metric_encoder = encoder.encode_descriptor(
                     &self.name,
                     "some help",

src/registry.rs

@@ -185,7 +185,7 @@ impl Registry {
     ///
     /// impl Collector for MyCollector {
     ///     fn encode(&self, mut encoder: DescriptorEncoder) -> Result<(), std::fmt::Error> {
-    ///         let counter = ConstCounter::new(42);
+    ///         let counter = ConstCounter::new(42u64);
     ///         let metric_encoder = encoder.encode_descriptor(
     ///             "my_counter",
     ///             "some help",