Hello, this seems to be caused by a build failure in 1:9.0.0-1 for i386 while amd64 succeeded. The build failure seems related to #942864.
Next upload 1:9.0.0-2 succeeded for both architectures. Kind regards, Bernhard https://buildd.debian.org/status/logs.php?pkg=llvm-toolchain-9&arch=i386 https://buildd.debian.org/status/logs.php?pkg=llvm-toolchain-9&arch=amd64 https://bugs.debian.org/942864
