Update Rust toolchains to nightly-2026-04-27

libs/@local/harpc/net/src/session/server/test.rs

@@ -1,10 +1,11 @@
 #![expect(clippy::significant_drop_tightening, reason = "test code")]
 use alloc::sync::Arc;
 use core::{
+    io::ErrorKind,
     sync::atomic::{AtomicUsize, Ordering},
     time::Duration,
 };
-use std::io::{self, ErrorKind};
+use std::io;
 
 use bytes::{Bytes, BytesMut};
 use error_stack::{Report, ResultExt as _};

libs/@local/hashql/diagnostics/src/diagnostic/label.rs

@@ -298,7 +298,7 @@ impl<S> Labels<S> {
     }
 
     #[cfg(feature = "render")]
-    pub(crate) fn as_slice(&self) -> &[Label<S>] {
+    pub(crate) const fn as_slice(&self) -> &[Label<S>] {
         &self.labels
     }
 

libs/@local/hashql/mir/src/body/terminator/switch_int.rs

@@ -380,23 +380,23 @@ impl<'heap> SwitchTargets<'heap> {
     /// The slice contains all targets in the same order as the values, with the
     /// otherwise target (if any) as the last element.
     #[must_use]
-    pub fn targets(&self) -> &[Target<'heap>] {
+    pub const fn targets(&self) -> &[Target<'heap>] {
         &self.targets
     }
 
     /// Returns a mutable slice of all targets, including the otherwise target if present.
     ///
     /// The slice contains all targets in the same order as the values, with the
     /// otherwise target (if any) as the last element.
-    pub fn targets_mut(&mut self) -> &mut [Target<'heap>] {
+    pub const fn targets_mut(&mut self) -> &mut [Target<'heap>] {
         &mut self.targets
     }
 
     /// Returns a slice of all discriminant values in sorted order.
     ///
     /// The values are guaranteed to be sorted in ascending order and to be unique.
     #[must_use]
-    pub fn values(&self) -> &[u128] {
+    pub const fn values(&self) -> &[u128] {
         &self.values
     }
 

libs/@local/repo-chores/rust/src/sync_turborepo/mod.rs

@@ -335,7 +335,7 @@
     match fs::read_to_string(path).await {
         Ok(contents) => serde_json::from_str(&contents)
             .change_context_lazy(|| SyncTurborepoError::ParseFile(path.to_owned())),
-        Err(err) if err.kind() == std::io::ErrorKind::NotFound => {
+        Err(err) if err.kind() == core::io::ErrorKind::NotFound => {
             tracing::info!("package.json does not exist at {path}, creating new one");
             Ok(PackageJson::default())
         }
@@ -461,7 +461,7 @@
             return Ok(());
         }
         Ok(_) => {}
-        Err(err) if err.kind() == std::io::ErrorKind::NotFound => {}
+        Err(err) if err.kind() == core::io::ErrorKind::NotFound => {}
         Err(err) => {
             tracing::warn!("Failed to read {path} for change detection, overwriting: {err}");
         }

libs/error-stack/README.md

@@ -7,7 +7,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/error-stack)][crates.io]
 [![libs.rs](https://img.shields.io/badge/libs.rs-error--stack-orange)][libs.rs]
-[![rust-version](https://img.shields.io/static/v1?label=Rust&message=1.83.0/nightly-2026-04-13&color=blue)][rust-version]
+[![rust-version](https://img.shields.io/static/v1?label=Rust&message=1.83.0/nightly-2026-04-27&color=blue)][rust-version]
 [![documentation](https://img.shields.io/docsrs/error-stack)][documentation]
 [![license](https://img.shields.io/crates/l/error-stack)][license]
 

libs/error-stack/macros/README.md

@@ -6,7 +6,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/error-stack-macros)][crates.io]
 [![libs.rs](https://img.shields.io/badge/libs.rs-error--stack--macros-orange)][libs.rs]
-[![rust-version](https://img.shields.io/static/v1?label=Rust&message=1.83.0/nightly-2026-04-13&color=blue)][rust-version]
+[![rust-version](https://img.shields.io/static/v1?label=Rust&message=1.83.0/nightly-2026-04-27&color=blue)][rust-version]
 [![documentation](https://img.shields.io/docsrs/error-stack-macros)][documentation]
 [![license](https://img.shields.io/crates/l/error-stack)][license]
 

libs/error-stack/src/lib.rs

@@ -2,7 +2,7 @@
 //!
 //! [![crates.io](https://img.shields.io/crates/v/error-stack)][crates.io]
 //! [![libs.rs](https://img.shields.io/badge/libs.rs-error--stack-orange)][libs.rs]
-//! [![rust-version](https://img.shields.io/static/v1?label=Rust&message=1.83.0/nightly-2026-04-13&color=blue)][rust-version]
+//! [![rust-version](https://img.shields.io/static/v1?label=Rust&message=1.83.0/nightly-2026-04-27&color=blue)][rust-version]
 //!
 //! [crates.io]: https://crates.io/crates/error-stack
 //! [libs.rs]: https://lib.rs/crates/error-stack

rust-toolchain.toml

@@ -1,3 +1,3 @@
 [toolchain]
-channel    = "nightly-2026-04-13"
+channel    = "nightly-2026-04-27"
 components = ['rustfmt', 'clippy', 'llvm-tools-preview', 'miri', 'rust-src', 'rust-analyzer', 'rustc-codegen-cranelift-preview']