diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 04ad50b7..2bfe0673 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -9,7 +9,7 @@ on:
 env:
   CARGO_TERM_COLOR: always
   # Pinned toolchain for linting and benchmarks
-  ACTIONS_LINTS_TOOLCHAIN: 1.53.0
+  ACTIONS_LINTS_TOOLCHAIN: 1.63.0
   EXTRA_FEATURES: "protobuf push process"
 
 jobs:
@@ -72,7 +72,7 @@ jobs:
       - name: cargo fmt (check)
         run: cargo fmt --all -- --check -l
       - name: cargo clippy
-        run: cargo clippy --all -- -D clippy::all
+        run: cargo clippy --all
   criterion:
     name: "Benchmarks (criterion)"
     runs-on: ubuntu-latest
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c7f026f6..73cbd46c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 0.13.2
+
+- Bug fix: Fix compilation on 32-bit targets (#446)
+
 ## 0.13.1
 
 - Improvement: ProcessCollector use IntGauge to provide better performance (#430)
diff --git a/Cargo.toml b/Cargo.toml
index 4199ed4b..35680514 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,7 @@ license = "Apache-2.0"
 name = "prometheus"
 readme = "README.md"
 repository = "https://github.com/tikv/rust-prometheus"
-version = "0.13.1"
+version = "0.13.2"
 
 [badges]
 travis-ci = { repository = "pingcap/rust-prometheus" }
diff --git a/src/desc.rs b/src/desc.rs
index 70280863..f97b123d 100644
--- a/src/desc.rs
+++ b/src/desc.rs
@@ -27,7 +27,7 @@ fn is_valid_ident<F: FnMut(char) -> bool>(input: &str, mut charset_validator: F)
     zeroth
         .and_then(|zeroth| {
             if charset_validator(zeroth) {
-                Some(chars.all(|c| charset_validator(c) || c.is_digit(10)))
+                Some(chars.all(|c| charset_validator(c) || c.is_ascii_digit()))
             } else {
                 None
             }
diff --git a/src/histogram.rs b/src/histogram.rs
index 025c81d9..78480541 100644
--- a/src/histogram.rs
+++ b/src/histogram.rs
@@ -516,7 +516,7 @@ impl Instant {
     }
 
     pub fn elapsed(&self) -> Duration {
-        match &*self {
+        match self {
             // We use `saturating_duration_since` to avoid panics caused by non-monotonic clocks.
             Instant::Monotonic(i) => StdInstant::now().saturating_duration_since(*i),
 
diff --git a/static-metric/src/auto_flush_builder.rs b/static-metric/src/auto_flush_builder.rs
index 1c86bcb4..bb0454ca 100644
--- a/static-metric/src/auto_flush_builder.rs
+++ b/static-metric/src/auto_flush_builder.rs
@@ -196,7 +196,7 @@ impl AutoFlushTokensBuilder {
 
         let offset_fetchers = builder_contexts
             .iter()
-            .map(|m| offset_fetcher(m))
+            .map(offset_fetcher)
             .collect::<Vec<Tokens>>();
 
         let delegator_tokens = if metric_type.to_string().contains("Counter") {
diff --git a/static-metric/src/parser.rs b/static-metric/src/parser.rs
index 917263b0..3f2a4ee6 100644
--- a/static-metric/src/parser.rs
+++ b/static-metric/src/parser.rs
@@ -10,6 +10,7 @@ use syn::*;
 
 /// Matches `label_enum` keyword.
 struct LabelEnum {
+    #[allow(dead_code)]
     pub span: Span,
 }