diff --git a/.cargo/config.toml b/.cargo/config.toml
index 7b6ea7115cf..e31fbf754db 100644
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -2,7 +2,7 @@
 # below 10 bytes per second for 30 seconds, then retry 3 times. On a
 # shared CI runner a brief network stall can cross that 30-second window
 # on every attempt, so the whole download fails even though the network
-# recovers soon after. A wider timeout and one more retry give a stall
+# recovers soon after. A wider timeout and two more retries give a stall
 # more time to pass before cargo gives up.
 #
 # Worst case for one dead crate: 6 attempts (1 try plus 5 retries) times
diff --git a/docker/daytona-runner/Dockerfile b/docker/daytona-runner/Dockerfile
index 294b5b12928..14b06f4e327 100644
--- a/docker/daytona-runner/Dockerfile
+++ b/docker/daytona-runner/Dockerfile
@@ -6,6 +6,7 @@
 FROM rust:1.97-bookworm@sha256:408fe88047cef61a2087653b0c5255fa51c0f2d6d94ddedd7a2562a9b91a46f6 AS runnerd-build
 
 WORKDIR /workspace/packages/paperclip-runner/runner
+COPY .cargo /workspace/.cargo
 COPY packages/paperclip-runner/runner/Cargo.toml packages/paperclip-runner/runner/Cargo.lock ./
 COPY packages/paperclip-runner/runner/crates ./crates
 COPY packages/paperclip-runner/protocol ../protocol
diff --git a/scripts/cargo-network-stall-harness/run-differential.sh b/scripts/cargo-network-stall-harness/run-differential.sh
index f1f82d5e890..9241da4f321 100755
--- a/scripts/cargo-network-stall-harness/run-differential.sh
+++ b/scripts/cargo-network-stall-harness/run-differential.sh
@@ -106,7 +106,7 @@ echo "$ARM_A_OUTPUT"
 echo "Arm A exit status: $ARM_A_STATUS"
 
 set +e
-ARM_B_OUTPUT="$(run_arm B env 2>&1)"
+ARM_B_OUTPUT="$(run_arm B env -u CARGO_NET_RETRY -u CARGO_HTTP_TIMEOUT 2>&1)"
 ARM_B_STATUS=$?
 set -e
 echo "$ARM_B_OUTPUT"
diff --git a/tests/runner-e2e/daytona-image-content.ts b/tests/runner-e2e/daytona-image-content.ts
index ab566d7bd71..d796a74cc44 100644
--- a/tests/runner-e2e/daytona-image-content.ts
+++ b/tests/runner-e2e/daytona-image-content.ts
@@ -14,6 +14,7 @@ export const DAYTONA_IMAGE_DOCKERFILE_PATH = "docker/daytona-runner/Dockerfile";
 // Keep it conservative: a false positive only rebuilds the image, while a
 // missing input could incorrectly reuse an incompatible paid-test image.
 export const DAYTONA_IMAGE_INPUT_PATHS = [
+  ".cargo",
   ".dockerignore",
   ".npmrc",
   "docker/daytona-runner/Dockerfile",