diff --git a/.devcontainer/rust/devcontainer-feature.json b/.devcontainer/rust/devcontainer-feature.json
index 63aec9dbf93639..d173b4d99d3f7c 100644
--- a/.devcontainer/rust/devcontainer-feature.json
+++ b/.devcontainer/rust/devcontainer-feature.json
@@ -5,7 +5,7 @@
   "dependsOn": {
     "ghcr.io/devcontainers/features/rust:1": {
       // this should match the `rust-toolchain.toml`
-      "version": "nightly-2026-02-05",
+      "version": "nightly-2026-02-18",
       "profile": "minimal",
       "components": "rustfmt,clippy,rust-analyzer"
     }
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 766686a77cea06..fba28e9d94ff70 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,5 +1,5 @@
 # if you update this, also update `.devcontainer/rust/devcontainer-feature.json`
 [toolchain]
-channel = "nightly-2026-02-05"
+channel = "nightly-2026-02-18"
 components = ["rustfmt", "clippy", "rust-analyzer"]
 profile = "minimal"
diff --git a/turbopack/crates/turbopack-core/src/lib.rs b/turbopack/crates/turbopack-core/src/lib.rs
index 420adf3dc8446e..bfcba4ace04ccc 100644
--- a/turbopack/crates/turbopack-core/src/lib.rs
+++ b/turbopack/crates/turbopack-core/src/lib.rs
@@ -1,6 +1,5 @@
 #![feature(min_specialization)]
 #![feature(type_alias_impl_trait)]
-#![feature(assert_matches)]
 #![feature(arbitrary_self_types)]
 #![feature(arbitrary_self_types_pointers)]
 #![feature(impl_trait_in_assoc_type)]
diff --git a/turbopack/crates/turbopack-ecmascript/src/source_map.rs b/turbopack/crates/turbopack-ecmascript/src/source_map.rs
index c05a47f120057c..42a0613cc1d371 100644
--- a/turbopack/crates/turbopack-ecmascript/src/source_map.rs
+++ b/turbopack/crates/turbopack-ecmascript/src/source_map.rs
@@ -56,10 +56,8 @@ fn maybe_decode_data_url(url: &str) -> Option<Rope> {
 
     let data_b64 = if let Some(data) = url.strip_prefix(DATA_PREAMBLE) {
         data
-    } else if let Some(data) = url.strip_prefix(DATA_PREAMBLE_CHARSET) {
-        data
     } else {
-        return None;
+        url.strip_prefix(DATA_PREAMBLE_CHARSET)?
     };
 
     data_encoding::BASE64