diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4bdc226491..0f4a3dd74e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -291,7 +291,7 @@ jobs:
         run: make test-unit-with-coverage
         # run: cargo +${{ env.NIGHTLY }} llvm-cov nextest run -E 'not test(e2e)' -E 'not test(integration)' -E 'not test(pos_state_machine_test)' --features namada/testing --no-fail-fast --lcov --output-path lcov.info
         env:
-          RUSTFLAGS: "-C linker=clang -C link-arg=-fuse-ld=/usr/local/bin/mold -Z threads=8"
+          RUSTFLAGS: "-C linker=clang -C link-arg=-fuse-ld=/usr/local/bin/mold"
       - name: Store coverage file artifact
         uses: actions/upload-artifact@v4
         with:
@@ -392,7 +392,7 @@ jobs:
         run: make test-integration-with-coverage
         # run: cargo +${{ env.NIGHTLY }} nextest run -E 'test(integration)' --test-threads 1 --no-fail-fast
         env:
-          RUSTFLAGS: "-C linker=clang -C link-arg=-fuse-ld=/usr/local/bin/mold -Z threads=8"
+          RUSTFLAGS: "-C linker=clang -C link-arg=-fuse-ld=/usr/local/bin/mold"
       - name: Store coverage file artifact
         uses: actions/upload-artifact@v4
         with:
@@ -451,7 +451,7 @@ jobs:
       - name: Run benchmarks tests
         run: make test-benches
         env:
-          RUSTFLAGS: "-C linker=clang -C link-arg=-fuse-ld=/usr/local/bin/mold -Z threads=8"
+          RUSTFLAGS: "-C linker=clang -C link-arg=-fuse-ld=/usr/local/bin/mold"
       - name: Clean cargo cache
         if: steps.cache.outputs.cache-hit != 'true'
         run: cargo cache --autoclean-expensive
diff --git a/crates/sdk/src/lib.rs b/crates/sdk/src/lib.rs
index 58b9b5638c..773d94017f 100644
--- a/crates/sdk/src/lib.rs
+++ b/crates/sdk/src/lib.rs
@@ -87,7 +87,10 @@ pub const DEFAULT_GAS_LIMIT: u64 = 200_000;
 /// An interface for high-level interaction with the Namada SDK
 #[cfg_attr(feature = "async-send", async_trait::async_trait)]
 #[cfg_attr(not(feature = "async-send"), async_trait::async_trait(?Send))]
-#[rustversion::attr(nightly, allow(elided_named_lifetimes, reason = "Not actually named"))]
+#[rustversion::attr(
+    nightly,
+    allow(elided_named_lifetimes, reason = "Not actually named")
+)]
 pub trait Namada: NamadaIo {
     /// Captures the interactive parts of the wallet's functioning
     type WalletUtils: WalletIo + WalletStorage + MaybeSend + MaybeSync;
@@ -776,7 +779,10 @@ where
 
 #[cfg_attr(feature = "async-send", async_trait::async_trait)]
 #[cfg_attr(not(feature = "async-send"), async_trait::async_trait(?Send))]
-#[rustversion::attr(nightly, allow(elided_named_lifetimes, reason = "Not actually named"))]
+#[rustversion::attr(
+    nightly,
+    allow(elided_named_lifetimes, reason = "Not actually named")
+)]
 impl<C, U, V, I> Namada for NamadaImpl<C, U, V, I>
 where
     C: Client + MaybeSend + Sync,
diff --git a/crates/tests/src/vm_host_env/tx.rs b/crates/tests/src/vm_host_env/tx.rs
index aeb399c8d3..5e39ead354 100644
--- a/crates/tests/src/vm_host_env/tx.rs
+++ b/crates/tests/src/vm_host_env/tx.rs
@@ -339,7 +339,7 @@ mod native_tx_host_env {
             ( $fn:ident ( $($arg:ident : $type:ty),* $(,)?) ) => {
                 concat_idents!(extern_fn_name = namada, _, $fn {
                     #[no_mangle]
-                    extern "C" fn extern_fn_name( $($arg: $type),* ) {
+                    extern "C-unwind" fn extern_fn_name( $($arg: $type),* ) {
                         with(|TestTxEnv {
                                 state,
                                 iterators,
@@ -384,7 +384,7 @@ mod native_tx_host_env {
             ( $fn:ident ( $($arg:ident : $type:ty),* $(,)?) -> $ret:ty ) => {
                 concat_idents!(extern_fn_name = namada, _, $fn {
                     #[no_mangle]
-                    extern "C" fn extern_fn_name( $($arg: $type),* ) -> $ret {
+                    extern "C-unwind" fn extern_fn_name( $($arg: $type),* ) -> $ret {
                         with(|TestTxEnv {
                                 tx_index,
                                 state,
@@ -429,7 +429,7 @@ mod native_tx_host_env {
             ( "non-result", $fn:ident ( $($arg:ident : $type:ty),* $(,)?) ) => {
                 concat_idents!(extern_fn_name = namada, _, $fn {
                     #[no_mangle]
-                    extern "C" fn extern_fn_name( $($arg: $type),* ) {
+                    extern "C-unwind" fn extern_fn_name( $($arg: $type),* ) {
                         with(|TestTxEnv {
                                 state,
                                 iterators,
diff --git a/crates/tests/src/vm_host_env/vp.rs b/crates/tests/src/vm_host_env/vp.rs
index 5fa7d04461..8b88009376 100644
--- a/crates/tests/src/vm_host_env/vp.rs
+++ b/crates/tests/src/vm_host_env/vp.rs
@@ -226,7 +226,7 @@ mod native_vp_host_env {
             ( $fn:ident ( $($arg:ident : $type:ty),* $(,)?) ) => {
                 concat_idents!(extern_fn_name = namada, _, $fn {
                     #[no_mangle]
-                    extern "C" fn extern_fn_name( $($arg: $type),* ) {
+                    extern "C-unwind" fn extern_fn_name( $($arg: $type),* ) {
                         with(|TestVpEnv {
                                 addr,
                                 state,
@@ -271,7 +271,7 @@ mod native_vp_host_env {
             ( $fn:ident ( $($arg:ident : $type:ty),* $(,)?) -> $ret:ty ) => {
                 concat_idents!(extern_fn_name = namada, _, $fn {
                     #[no_mangle]
-                    extern "C" fn extern_fn_name( $($arg: $type),* ) -> $ret {
+                    extern "C-unwind" fn extern_fn_name( $($arg: $type),* ) -> $ret {
                         with(|TestVpEnv {
                                 addr,
                                 state,