diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 26f83658..f8f67dea 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,7 +6,7 @@ jobs:
   test:
     strategy:
       matrix:
-        rustc_sup_version: [ 1.78.0, 1.79.0, 1.80.0, 1.81.0, 1.82.0 ]
+        rustc_sup_version: [ 1.79.0, 1.80.0, 1.81.0, 1.82.0, 1.83.0 ]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -25,7 +25,7 @@ jobs:
       - name: Install actual rustc
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.82.0
+          toolchain: 1.83.0
           override: true
           components: rustfmt, clippy
       - name: Run functional tests on own stack unwind implementation
@@ -42,7 +42,7 @@ jobs:
       - name: Install rust
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.82.0
+          toolchain: 1.83.0
           override: true
           components: rustfmt, clippy
       - name: Set up Python 3.7
@@ -69,7 +69,7 @@ jobs:
       - name: Install rust
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.82.0
+          toolchain: 1.83.0
           override: true
           components: rustfmt, clippy
       - name: Install libunwind
diff --git a/src/debugger/breakpoint.rs b/src/debugger/breakpoint.rs
index f0b3f1de..02d8e282 100644
--- a/src/debugger/breakpoint.rs
+++ b/src/debugger/breakpoint.rs
@@ -875,7 +875,7 @@ pub struct BreakpointView<'a> {
     pub place: Option<Cow<'a, PlaceDescriptorOwned>>,
 }
 
-impl<'a> From<Breakpoint> for BreakpointView<'a> {
+impl From<Breakpoint> for BreakpointView<'_> {
     fn from(brkpt: Breakpoint) -> Self {
         Self {
             addr: Address::Relocated(brkpt.addr),
@@ -895,7 +895,7 @@ impl<'a> From<&'a Breakpoint> for BreakpointView<'a> {
     }
 }
 
-impl<'a> From<UninitBreakpoint> for BreakpointView<'a> {
+impl From<UninitBreakpoint> for BreakpointView<'_> {
     fn from(brkpt: UninitBreakpoint) -> Self {
         Self {
             addr: brkpt.addr,
@@ -922,7 +922,7 @@ pub struct BreakpointViewOwned {
     pub place: Option<PlaceDescriptorOwned>,
 }
 
-impl<'a> BreakpointView<'a> {
+impl BreakpointView<'_> {
     pub fn to_owned(&self) -> BreakpointViewOwned {
         BreakpointViewOwned {
             addr: self.addr,
diff --git a/src/debugger/debugee/dwarf/eval.rs b/src/debugger/debugee/dwarf/eval.rs
index 234f45fe..5c595162 100644
--- a/src/debugger/debugee/dwarf/eval.rs
+++ b/src/debugger/debugee/dwarf/eval.rs
@@ -358,7 +358,7 @@ pub enum AddressKind {
     Value,
 }
 
-impl<'a> CompletedResult<'a> {
+impl CompletedResult<'_> {
     pub fn into_scalar<T: Copy>(self, address_kind: AddressKind) -> Result<T, Error> {
         let (_, bytes) = self.into_raw_bytes(mem::size_of::<T>(), address_kind)?;
         Ok(scalar_from_bytes(&bytes))
diff --git a/src/debugger/debugee/dwarf/location.rs b/src/debugger/debugee/dwarf/location.rs
index 821e5ee7..6b1527e7 100644
--- a/src/debugger/debugee/dwarf/location.rs
+++ b/src/debugger/debugee/dwarf/location.rs
@@ -7,7 +7,7 @@ use gimli::{Attribute, AttributeValue, Expression};
 
 pub(super) struct Location<'a>(pub(super) &'a Attribute<EndianArcSlice>);
 
-impl<'a> Location<'a> {
+impl Location<'_> {
     /// Converts location attribute to a dwarf expression.
     /// Expect location attribute one of:
     /// - DW_FORM_exprloc
diff --git a/src/debugger/debugee/dwarf/mod.rs b/src/debugger/debugee/dwarf/mod.rs
index 3036e833..baa2b013 100644
--- a/src/debugger/debugee/dwarf/mod.rs
+++ b/src/debugger/debugee/dwarf/mod.rs
@@ -958,13 +958,13 @@ macro_rules! ctx_resolve_unit_call {
     }};
 }
 
-impl<'a, T> Clone for ContextualDieRef<'a, T> {
+impl<T> Clone for ContextualDieRef<'_, T> {
     fn clone(&self) -> Self {
         *self
     }
 }
 
-impl<'a, T> Copy for ContextualDieRef<'a, T> {}
+impl<T> Copy for ContextualDieRef<'_, T> {}
 
 impl<'a, T> ContextualDieRef<'a, T> {
     pub fn namespaces(&self) -> NamespaceHierarchy {
@@ -1139,7 +1139,7 @@ impl<'ctx> ContextualDieRef<'ctx, FunctionDie> {
     }
 }
 
-impl<'ctx> ContextualDieRef<'ctx, VariableDie> {
+impl ContextualDieRef<'_, VariableDie> {
     pub fn ranges(&self) -> Option<&[Range]> {
         if let Some(lb_idx) = self.die.lexical_block_idx {
             let entry = ctx_resolve_unit_call!(self, entry, lb_idx);
@@ -1181,7 +1181,7 @@ impl<'ctx> ContextualDieRef<'ctx, VariableDie> {
     }
 }
 
-impl<'ctx> ContextualDieRef<'ctx, ParameterDie> {
+impl ContextualDieRef<'_, ParameterDie> {
     /// Return max range (with max `end` address) of an underlying function.
     /// If it's possible, `end` address in range equals to function epilog begin.
     pub fn max_range(&self) -> Option<Range> {
@@ -1205,7 +1205,7 @@ impl<'ctx> ContextualDieRef<'ctx, ParameterDie> {
     }
 }
 
-impl<'ctx, D: AsAllocatedData> ContextualDieRef<'ctx, D> {
+impl<D: AsAllocatedData> ContextualDieRef<'_, D> {
     pub fn r#type(&self) -> Option<ComplexType> {
         let parser = r#type::TypeParser::new();
         Some(parser.parse(*self, self.die.type_ref()?))
diff --git a/src/debugger/debugee/dwarf/type.rs b/src/debugger/debugee/dwarf/type.rs
index d339409c..06360787 100644
--- a/src/debugger/debugee/dwarf/type.rs
+++ b/src/debugger/debugee/dwarf/type.rs
@@ -27,7 +27,7 @@ pub struct EvaluationContext<'a> {
     pub expl_ctx: &'a ExplorationContext,
 }
 
-impl<'a> EvaluationContext<'a> {
+impl EvaluationContext<'_> {
     pub fn rustc_version(&self) -> Option<Version> {
         self.evaluator.unit().rustc_version()
     }
diff --git a/src/debugger/debugee/dwarf/unit/mod.rs b/src/debugger/debugee/dwarf/unit/mod.rs
index 01ede44a..cbeb1ab9 100644
--- a/src/debugger/debugee/dwarf/unit/mod.rs
+++ b/src/debugger/debugee/dwarf/unit/mod.rs
@@ -115,7 +115,7 @@ impl<'a> From<(&'a Unit, usize, &LineRow)> for PlaceDescriptor<'a> {
     }
 }
 
-impl<'a> Debug for PlaceDescriptor<'a> {
+impl Debug for PlaceDescriptor<'_> {
     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
         f.write_fmt(format_args!(
             "file: {:?}, line: {}, addr: {}, is_stmt: {}, col: {}, epilog_begin: {}, prolog_end: {}",
@@ -151,7 +151,7 @@ impl<'a> PlaceDescriptor<'a> {
     }
 }
 
-impl<'a> PartialEq for PlaceDescriptor<'a> {
+impl PartialEq for PlaceDescriptor<'_> {
     fn eq(&self, other: &Self) -> bool {
         self.file == other.file
             && self.address == other.address
@@ -814,7 +814,7 @@ impl Unit {
     pub fn evaluator<'this>(
         &'this self,
         debugee: &'this Debugee,
-    ) -> UnitResult<ExpressionEvaluator> {
+    ) -> UnitResult<ExpressionEvaluator<'this>> {
         match self.lazy_part.get() {
             None => UnitResult::Reload,
             Some(_) => UnitResult::Ok(ExpressionEvaluator::new(self, self.encoding(), debugee)),
diff --git a/src/debugger/debugee/dwarf/unwind.rs b/src/debugger/debugee/dwarf/unwind.rs
index 6ce9aff9..cbe17a8c 100644
--- a/src/debugger/debugee/dwarf/unwind.rs
+++ b/src/debugger/debugee/dwarf/unwind.rs
@@ -239,7 +239,7 @@ impl<'a> DwarfUnwinder<'a> {
     /// # Arguments
     ///
     /// * `debugee`: current debugee program.
-    pub fn new(debugee: &'a Debugee) -> DwarfUnwinder {
+    pub fn new(debugee: &'a Debugee) -> DwarfUnwinder<'a> {
         Self { debugee }
     }
 
diff --git a/src/debugger/variable/render.rs b/src/debugger/variable/render.rs
index 0531072c..4f8939aa 100644
--- a/src/debugger/variable/render.rs
+++ b/src/debugger/variable/render.rs
@@ -19,7 +19,7 @@ pub enum ValueLayout<'a> {
     Map(&'a [(VariableIR, VariableIR)]),
 }
 
-impl<'a> Debug for ValueLayout<'a> {
+impl Debug for ValueLayout<'_> {
     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
         match self {
             ValueLayout::PreRendered(s) => f.debug_tuple("PreRendered").field(s).finish(),
diff --git a/src/debugger/variable/specialization/btree.rs b/src/debugger/variable/specialization/btree.rs
index 879a4898..355d9d17 100644
--- a/src/debugger/variable/specialization/btree.rs
+++ b/src/debugger/variable/specialization/btree.rs
@@ -533,7 +533,7 @@ pub struct KVIterator<'a> {
     v_size: usize,
 }
 
-impl<'a> FallibleIterator for KVIterator<'a> {
+impl FallibleIterator for KVIterator<'_> {
     type Item = (ObjectBinaryRepr, ObjectBinaryRepr);
     type Error = ParsingError;
 
diff --git a/src/debugger/watchpoint.rs b/src/debugger/watchpoint.rs
index d8737d2e..52864f48 100644
--- a/src/debugger/watchpoint.rs
+++ b/src/debugger/watchpoint.rs
@@ -517,7 +517,7 @@ impl<'a> From<&'a Watchpoint> for WatchpointView<'a> {
     }
 }
 
-impl<'a> From<Watchpoint> for WatchpointView<'a> {
+impl From<Watchpoint> for WatchpointView<'_> {
     fn from(mut wp: Watchpoint) -> Self {
         Self {
             number: wp.number,
@@ -534,7 +534,7 @@ impl<'a> From<Watchpoint> for WatchpointView<'a> {
     }
 }
 
-impl<'a> WatchpointView<'a> {
+impl WatchpointView<'_> {
     pub fn to_owned(&self) -> WatchpointViewOwned {
         WatchpointViewOwned {
             number: self.number,
diff --git a/src/ui/console/editor.rs b/src/ui/console/editor.rs
index 335979e4..ad87ec3e 100644
--- a/src/ui/console/editor.rs
+++ b/src/ui/console/editor.rs
@@ -160,7 +160,7 @@ enum CompletableCommand<'a> {
 }
 
 impl<'a> CompletableCommand<'a> {
-    fn recognize(line: &'a str) -> Option<CompletableCommand> {
+    fn recognize(line: &'a str) -> Option<CompletableCommand<'a>> {
         let op = just::<_, _, extra::Default>;
 
         let bp = op(BREAK_COMMAND)
diff --git a/src/ui/console/file.rs b/src/ui/console/file.rs
index 1bc4fa69..6d80df02 100644
--- a/src/ui/console/file.rs
+++ b/src/ui/console/file.rs
@@ -65,11 +65,7 @@ impl FileView {
             place.line_number
         };
         let line_pos = line_number - 1;
-        let start = if line_pos < bounds {
-            0
-        } else {
-            line_pos - bounds
-        };
+        let start = line_pos.saturating_sub(bounds);
 
         self.render(place.file, start, bounds * 2 + 1)
     }
diff --git a/src/ui/syntax.rs b/src/ui/syntax.rs
index cbcab3db..933f471d 100644
--- a/src/ui/syntax.rs
+++ b/src/ui/syntax.rs
@@ -17,7 +17,7 @@ pub enum StylizedLine<'a> {
     Stylized(Vec<(Style, &'a str)>),
 }
 
-impl<'a> RustCodeLineRenderer<'a> {
+impl RustCodeLineRenderer<'_> {
     /// Prettify rust code-line if needed.
     pub fn render_line<'s>(&mut self, line: &'s str) -> anyhow::Result<StylizedLine<'s>> {
         match &mut self.highlighter {
diff --git a/src/version.rs b/src/version.rs
index 38bbfcd8..1e46489a 100644
--- a/src/version.rs
+++ b/src/version.rs
@@ -59,6 +59,7 @@ static SUPPORTED_RUSTC: &[(Version, Version)] = &[
     (Version((1, 80, 0)), Version((1, 80, u32::MAX))),
     (Version((1, 81, 0)), Version((1, 81, u32::MAX))),
     (Version((1, 82, 0)), Version((1, 82, u32::MAX))),
+    (Version((1, 83, 0)), Version((1, 83, u32::MAX))),
 ];
 
 pub fn supported_versions_to_string() -> String {