Statocles build fails at statocles.t line 79

[neilhwatson]

t/plugin/mermaid.t ............ ok
t/site.t ...................... ok
    # Current locale: C

        #   Failed test 'nothing on stderr'
        #   at t/statocles.t line 70.
        #          got: 'perl: warning: Setting locale failed.
        # perl: warning: Please check that your locale settings:
        # 	LANGUAGE = (unset),
        # 	LC_ALL = "en_US.UTF-8",
        # 	LC_CTYPE = "en_US.UTF-8",
        # 	LANG = "en_US.UTF-8"
        #     are supported and installed on your system.
        # perl: warning: Falling back to the standard locale ("C").
        # ascii "\xC2" does not map to Unicode at /root/.cpanm/work/1565902557.7/Statocles-0.094/blib/lib/Statocles/Util.pm line 129.
        # ascii "\xA9" does not map to Unicode at /root/.cpanm/work/1565902557.7/Statocles-0.094/blib/lib/Statocles/Util.pm line 129.
        # '
        #     expected: undef

        #   Failed test 'contains blog post document path'
        #   at t/statocles.t line 73.
        #                   'New post at: /tmp/MnBwKjJpqp/blog/2019/08/15/test/index.markdown
        # '
        #     doesn't match '(?^:New post at: \/tmp\/MnBwKjJpqp\/blog\/2019\/08\/15\/test\-a\-a\-ay\/index\.markdown)'
        # Looks like you failed 2 tests of 3.

    #   Failed test 'run the command'
    #   at t/statocles.t line 75.
        # No tests run!

    #   Failed test 'No tests run for subtest "check the generated document"'
    #   at t/statocles.t line 94.
    # Looks like you failed 2 tests of 2.

#   Failed test 'handle locales on ARGV and STDIN'
#   at t/statocles.t line 95.
Error open (<:raw:encoding(UTF-8)) on '/tmp/MnBwKjJpqp/blog/2019/08/15/test-a-a-ay/index.markdown': No such file or directory at t/statocles.t line 79.