$ # nixpgs 24.05 llvm 16
$ bin/crystal spec spec/std/io/io_spec.cr:593 spec/std/string_spec.cr:2903 spec/std/io/io_spec.cr:593
....F...........F..........................E.......F.

Failures:

  1) IO encoding decode gets big EUC-JP string
     Failure/Error: {% unless flag?(:without_iconv) %}

       Expected: "好我是人"
            got: "好我是人人"

     # spec/std/io/io_spec.cr:593

  2) IO encoding decode says invalid byte sequence
     Failure/Error: {% unless flag?(:without_iconv) %}

       Expected ArgumentError with message containing: "Invalid multibyte sequence"
            got ArgumentError with message: "Incomplete multibyte sequence"
       Backtrace:
         # src/crystal/iconv.cr:78:9 in 'handle_invalid'
         # src/io/encoding.cr:114:15 in 'read'
         # src/io/encoding.cr:139:7 in 'read_byte'
         # src/io.cr:396:7 in 'read_utf8_byte'
         # src/io.cr:365:7 in 'peek_or_read_utf8'
         # src/io.cr:312:13 in 'read_char_with_bytesize'
         # src/io.cr:305:12 in 'read_char'
         # spec/std/io/io_spec.cr:593:3 in '->'
         # src/spec/example.cr:50:13 in 'internal_run'
         # src/spec/example.cr:38:16 in 'run'
         # src/spec/context.cr:20:23 in 'internal_run'
         # src/spec/context.cr:364:14 in 'run'
         # src/spec/context.cr:20:23 in 'internal_run'
         # src/spec/context.cr:364:14 in 'run'
         # src/spec/context.cr:20:23 in 'internal_run'
         # src/spec/context.cr:364:14 in 'run'
         # src/spec/context.cr:20:23 in 'internal_run'
         # src/spec/context.cr:173:7 in 'run'
         # src/spec/dsl.cr:219:7 in 'execute_examples'
         # src/spec/dsl.cr:194:13 in '->'
         # src/crystal/at_exit_handlers.cr:18:17 in 'run'
         # src/crystal/main.cr:64:14 in 'exit'
         # src/crystal/main.cr:50:5 in 'main'
         # src/crystal/system/unix/main.cr:9:3 in 'main'

     # spec/std/io/io_spec.cr:593

  3) String encode decodes with shift state
     Failure/Error: {% unless flag?(:without_iconv) %}

       Expected: "Ê̄"
            got: "Ê"

     # spec/std/string_spec.cr:2903

  4) String encode flushes the shift state (#11992)

       Invalid multibyte sequence (ArgumentError)
         from src/crystal/iconv.cr:80:9 in 'handle_invalid'
         from src/string.cr:1827:11 in 'encode'
         from src/string.cr:1809:5 in 'encode'
         from spec/std/string_spec.cr:2903:3 in '->'
         from src/spec/example.cr:50:13 in 'internal_run'
         from src/spec/example.cr:38:16 in 'run'
         from src/spec/context.cr:20:23 in 'internal_run'
         from src/spec/context.cr:364:14 in 'run'
         from src/spec/context.cr:20:23 in 'internal_run'
         from src/spec/context.cr:364:14 in 'run'
         from src/spec/context.cr:20:23 in 'internal_run'
         from src/spec/context.cr:173:7 in 'run'
         from src/spec/dsl.cr:219:7 in 'execute_examples'
         from src/spec/dsl.cr:194:13 in '->'
         from src/crystal/at_exit_handlers.cr:18:17 in 'run'
         from src/crystal/main.cr:64:14 in 'exit'
         from src/crystal/main.cr:50:5 in 'main'
         from src/crystal/system/unix/main.cr:9:3 in 'main'


Finished in 62.31 milliseconds
53 examples, 3 failures, 1 errors, 0 pending

Failed examples:

crystal spec spec/std/io/io_spec.cr:593 # IO encoding decode gets big EUC-JP string
crystal spec spec/std/io/io_spec.cr:593 # IO encoding decode says invalid byte sequence
crystal spec spec/std/string_spec.cr:2903 # String encode decodes with shift state
crystal spec spec/std/string_spec.cr:2903 # String encode flushes the shift state (#11992)