diff --git a/Dockerfile.dapper b/Dockerfile.dapper
index 1e651818c8ea..e072b1736d71 100644
--- a/Dockerfile.dapper
+++ b/Dockerfile.dapper
@@ -23,7 +23,8 @@ ENV RUSTUP_HOME=/usr/local/rustup \
     CARGO_HOME=/usr/local/cargo \
     PATH=/usr/local/cargo/bin:$PATH
 
-RUN GOARCH=$(go env GOARCH); \
+RUN set -ex; \
+    GOARCH=$(go env GOARCH); \
     if [ "${GOARCH}" = "arm" ]; then \
         RUST_ARCH=armv7-unknown-linux-gnueabihf; \
         TRIVY_ARCH=ARM; \
@@ -37,7 +38,7 @@ RUN GOARCH=$(go env GOARCH); \
         RUST_ARCH=s390x-unknown-linux-gnu; \
     fi; \
     if [ -n "${RUST_ARCH}" ]; then \
-        curl -sLO https://static.rust-lang.org/rustup/archive/1.25.1/${RUST_ARCH}/rustup-init; \
+        curl -sfLO https://static.rust-lang.org/rustup/archive/1.25.1/${RUST_ARCH}/rustup-init; \
         chmod +x ./rustup-init; \
         ./rustup-init -y --no-modify-path --profile minimal --default-toolchain 1.67.0 --default-host ${RUST_ARCH}; \
         rustup --version; \
@@ -45,7 +46,7 @@ RUN GOARCH=$(go env GOARCH); \
         rustc --version; \
     fi; \
     if [ -n "${TRIVY_ARCH}" ]; then \
-       curl -sL https://github.com/aquasecurity/trivy/releases/download/v0.25.3/trivy_0.25.3_Linux-${TRIVY_ARCH}.tar.gz | tar -zxvC /usr/local/bin trivy; \
+       curl -sFL https://github.com/aquasecurity/trivy/releases/download/v0.25.3/trivy_0.25.3_Linux-${TRIVY_ARCH}.tar.gz | tar -zxvC /usr/local/bin trivy; \
        trivy --version; \
     fi