llvm-symbolizer is missing #4379
Description
I see that llvm-symbolizer is missing on at least linux arm debug builds.
kj/exception.c++:357: warning: llvm-symbolizer was not found. To symbolize stack traces, install it in your $PATH or set $LLVM_SYMBOLIZER to the location of the binary. When running tests under bazel, use `--test_env=LLVM_SYMBOLIZER=<path>`.