maint: update rustc to 1.95.0-nightly

kernel/driver/block/nvme/src/lib.rs

@@ -1,4 +1,4 @@
-#![feature(const_trait_impl, if_let_guard)]
+#![feature(const_trait_impl)]
 #![allow(missing_docs)]
 #![no_std]
 // TODO

kernel/driver/fs/ext2/src/lib.rs

@@ -1,4 +1,4 @@
-#![feature(if_let_guard, impl_trait_in_assoc_type)]
+#![feature(impl_trait_in_assoc_type)]
 #![cfg_attr(not(test), no_std)]
 #![allow(clippy::new_ret_no_self)]
 

kernel/libk/libk-util/src/ext.rs

@@ -1,20 +0,0 @@
-//! Extensions to core types
-
-pub trait OptionExt<T> {
-    fn get_or_try_insert_with<E, F: FnOnce() -> Result<T, E>>(
-        &mut self,
-        init: F,
-    ) -> Result<&mut T, E>;
-}
-
-impl<T> OptionExt<T> for Option<T> {
-    fn get_or_try_insert_with<E, F: FnOnce() -> Result<T, E>>(
-        &mut self,
-        init: F,
-    ) -> Result<&mut T, E> {
-        match self {
-            Self::None => Ok(self.insert(init()?)),
-            Self::Some(value) => Ok(value),
-        }
-    }
-}

kernel/libk/libk-util/src/lib.rs

@@ -18,7 +18,6 @@ use core::{
 
 pub mod bit;
 pub mod event;
-pub mod ext;
 pub mod hash_table;
 pub mod io;
 pub mod lru_hash_table;

kernel/libk/src/lib.rs

@@ -2,6 +2,7 @@
 #![cfg_attr(test, allow(unused_imports))]
 #![allow(clippy::new_without_default)]
 #![feature(
+    option_get_or_try_insert_with,
     async_fn_traits,
     new_range_api,
     associated_type_defaults,
@@ -11,7 +12,6 @@
     never_type,
     allocator_api,
     trait_alias,
-    if_let_guard,
     arbitrary_self_types,
     slice_split_once,
     arbitrary_self_types_pointers,

kernel/libk/src/vfs/node/mod.rs

@@ -6,10 +6,7 @@ use alloc::{
     sync::{Arc, Weak},
     vec::Vec,
 };
-use libk_util::{
-    ext::OptionExt,
-    sync::{IrqSafeSpinlock, spin_rwlock::IrqSafeRwLock},
-};
+use libk_util::sync::{IrqSafeSpinlock, spin_rwlock::IrqSafeRwLock};
 use traits::HardlinkImpl;
 use yggdrasil_abi::{
     bitflags,

kernel/libk/src/vfs/node/ops.rs

@@ -1,6 +1,5 @@
 use core::mem::MaybeUninit;
 
-use libk_util::ext::OptionExt;
 use yggdrasil_abi::{
     error::Error,
     io::{DirectoryEntry, FileMetadataUpdate, FileMode, GroupId, OpenOptions, UserId},

kernel/src/main.rs

@@ -1,6 +1,5 @@
 //! osdev-x kernel crate
 #![feature(
-    if_let_guard,
     step_trait,
     decl_macro,
     optimize_attribute,