diff --git a/Cargo.lock b/Cargo.lock
index d5ea9e15..f539e181 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -736,9 +736,6 @@ version = "0.6.3"
 dependencies = [
  "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.33 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
diff --git a/cli/src/tests/parser_test.rs b/cli/src/tests/parser_test.rs
index 0384bce8..392d1a9d 100644
--- a/cli/src/tests/parser_test.rs
+++ b/cli/src/tests/parser_test.rs
@@ -450,7 +450,7 @@ fn test_parsing_on_multiple_threads() {
 
 #[test]
 fn test_parsing_cancelled_by_another_thread() {
-    let cancellation_flag = Box::new(AtomicUsize::new(0));
+    let cancellation_flag = std::sync::Arc::new(AtomicUsize::new(0));
 
     let mut parser = Parser::new();
     parser.set_language(get_language("javascript")).unwrap();
@@ -471,9 +471,10 @@ fn test_parsing_cancelled_by_another_thread() {
     );
     assert!(tree.is_some());
 
+    let flag = cancellation_flag.clone();
     let cancel_thread = thread::spawn(move || {
         thread::sleep(time::Duration::from_millis(100));
-        cancellation_flag.store(1, Ordering::SeqCst);
+        flag.store(1, Ordering::SeqCst);
     });
 
     // Infinite input
diff --git a/lib/Cargo.toml b/lib/Cargo.toml
index 5e0bbb5c..78829420 100644
--- a/lib/Cargo.toml
+++ b/lib/Cargo.toml
@@ -20,9 +20,6 @@ include = [
 
 [dependencies]
 regex = "1"
-serde = "1.0"
-serde_json = "1.0"
-serde_derive = "1.0"
 
 [build-dependencies]
 cc = "1.0"
diff --git a/lib/binding_rust/bindings.rs b/lib/binding_rust/bindings.rs
index e1c3ceac..cba87fa3 100644
--- a/lib/binding_rust/bindings.rs
+++ b/lib/binding_rust/bindings.rs
@@ -172,9 +172,9 @@ extern "C" {
     #[doc = " the given ranges must be ordered from earliest to latest in the document,"]
     #[doc = " and they must not overlap. That is, the following must hold for all"]
     #[doc = " `i` < `length - 1`:"]
-    #[doc = ""]
+    #[doc = " ```text"]
     #[doc = "     ranges[i].end_byte <= ranges[i + 1].start_byte"]
-    #[doc = ""]
+    #[doc = " ```"]
     #[doc = " If this requirement is not satisfied, the operation will fail, the ranges"]
     #[doc = " will not be assigned, and this function will return `false`. On success,"]
     #[doc = " this function returns `true`"]
diff --git a/lib/binding_rust/lib.rs b/lib/binding_rust/lib.rs
index 1c9421f5..a13d9168 100644
--- a/lib/binding_rust/lib.rs
+++ b/lib/binding_rust/lib.rs
@@ -1,11 +1,6 @@
 mod ffi;
 mod util;
 
-extern crate regex;
-extern crate serde;
-extern crate serde_derive;
-extern crate serde_json;
-
 #[cfg(unix)]
 use std::os::unix::io::AsRawFd;
 
@@ -555,9 +550,9 @@ impl Parser {
     /// the given ranges must be ordered from earliest to latest in the document,
     /// and they must not overlap. That is, the following must hold for all
     /// `i` < `length - 1`:
-    ///
+    /// ```text
     ///     ranges[i].end_byte <= ranges[i + 1].start_byte
-    ///
+    /// ```
     /// If this requirement is not satisfied, method will panic.
     pub fn set_included_ranges<'a>(
         &mut self,