diff --git a/.github/workflows/crystal.yml b/.github/workflows/crystal.yml
index 502a91c..fcd4e10 100644
--- a/.github/workflows/crystal.yml
+++ b/.github/workflows/crystal.yml
@@ -8,7 +8,6 @@ on:
 
 jobs:
   build:
-
     runs-on: ubuntu-latest
 
     container:
@@ -16,8 +15,14 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+    - name: apt update
+      run: apt update
+    - name: Install lsb_release
+      run: apt-get install -y lsb-release
+    - name: lsb_release
+      run: lsb_release -a
     - name: Install wget
-      run: sudo apt-get install wget
+      run: apt-get install -y wget
     - name: setenv DEBUG
       run: echo "SODIUM_BUILD_DEBUG=1" >> $GITHUB_ENV
     - name: setenv BUILD_DIR
@@ -30,4 +35,7 @@ jobs:
       run: shards build -Dpreview_mt
     - name: Run format
       run: crystal tool format --check
+    - name: Failed
+      if: ${{ failure() }}
+      run: "[ -f libsodium_install.out ] && cat libsodium_install.out"
 
diff --git a/build/env.sh b/build/env.sh
index 0f62155..4bc275a 100644
--- a/build/env.sh
+++ b/build/env.sh
@@ -17,13 +17,13 @@ if `pkg-config libsodium --exists`; then
 	PKG_VER=`pkg-config libsodium --modversion`
 
 	if [ $(version "$PKG_VER") -ge $(version "$MIN_LIBSODIUM_VERSION") ]; then
-		[ ! -z "$SODIUM_BUILD_VERBOSE" ] && echo "Using packaged libsodium."
+		[ ! -z "$SODIUM_BUILD_VERBOSE" ] && echo "Using packaged libsodium." 1>&2
 	else
-		[ ! -z "$SODIUM_BUILD_VERBOSE" ] && echo "System packaged libsodium is too old."
+		[ ! -z "$SODIUM_BUILD_VERBOSE" ] && echo "System packaged libsodium is too old." 1>&2
 		export LIBSODIUM_INSTALL=1
 	fi
 else
-	[ ! -z "$SODIUM_BUILD_VERBOSE" ] && echo "Missing libsodium system package."
+	[ ! -z "$SODIUM_BUILD_VERBOSE" ] && echo "Missing libsodium system package." 1>&2
 	export LIBSODIUM_INSTALL=1
 fi
 
diff --git a/build/libsodium_install.sh b/build/libsodium_install.sh
index cb5573d..093cab2 100755
--- a/build/libsodium_install.sh
+++ b/build/libsodium_install.sh
@@ -12,7 +12,7 @@ set -e
 
 #export LIBSODIUM_INSTALL="1"
 if [ "$LIBSODIUM_INSTALL" != "1" ]; then
-	[ ! -z "$SODIUM_BUILD_VERBOSE" ] && echo "Skipping libsodium build."
+	[ ! -z "$SODIUM_BUILD_VERBOSE" ] && echo "Skipping libsodium build." 1>&2
 	exit 0
 fi
 
@@ -40,8 +40,8 @@ if [ ! -f "$LIBSODIUM_INSTALL_PATH/include/sodium.h" ]; then
 
 	SHA=`openssl sha256 -hex < "$TGZ_FILENAME" | sed 's/^.* //'`
 	if [ "$SHA" != "$LIBSODIUM_SHA256" ]; then
-		echo "SHA256 sum doesn't match."
-		echo "$SHA" != "$LIBSODIUM_SHA256"
+		echo "SHA256 sum doesn't match." 1>&2
+		echo "$SHA" != "$LIBSODIUM_SHA256" 1>&2
 		exit 1
 	fi
 
@@ -64,11 +64,11 @@ if [ ! -f "$LIBSODIUM_INSTALL_PATH/include/sodium.h" ]; then
 		touch .make.install.done
 	fi
 
-	[ ! -z "$SODIUM_BUILD_VERBOSE" ] && echo "Finished building libsodium."
+	[ ! -z "$SODIUM_BUILD_VERBOSE" ] && echo "Finished building libsodium." 1>&2
 else
 #	find "$LIBSODIUM_INSTALL_PATH"
 
-	[ ! -z "$SODIUM_BUILD_VERBOSE" ] && echo "Using already built libsodium."
+	[ ! -z "$SODIUM_BUILD_VERBOSE" ] && echo "Using already built libsodium." 1>&2
 fi
 
 exit 0