chore: bump toolchain to nightly-2026-02-19 and apply minor updates

ytmimi · ytmimi · commit 93d778b3d2eb · 2026-02-19T02:32:33.000-05:00
diff --git a/rust-toolchain b/rust-toolchain
@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2025-04-02"
+channel = "nightly-2026-02-19"
 components = ["llvm-tools", "rustc-dev"]
