Allow riscv64 image to run without binfmt_misc

build/linux.riscv64/build

@@ -1,15 +1,19 @@
 #!/bin/sh
 set -xe
+IFS=';'
 {
   tar xzv --strip-components=1
   chmod +x striptests && ./striptests
+  # Use a freeze file to ensure we use the same dependencies we cached during
+  # the docker image build. We don't want to spend time compiling anything new.
+  cp /etc/cabal.project.freeze .
   mkdir "$TARGETNAME"
-  cabal update
-  ( IFS=';'; cabal build --enable-executable-static )
+  # Retry in case of random segfault
+  cabal build --enable-executable-static || cabal build --enable-executable-static
   find . -name shellcheck -type f -exec mv {} "$TARGETNAME/" \;
   ls -l "$TARGETNAME"
   "$TARGET-strip" -s "$TARGETNAME/shellcheck"
   ls -l "$TARGETNAME"
-  qemu-riscv64-static "$TARGETNAME/shellcheck" --version
+  "$TARGETNAME/shellcheck" --version
 } >&2
 tar czv "$TARGETNAME"