D:\ruby-2.4.0-rc1_57079applied_mod>nmake test-all

Microsoft(R) Program Maintenance Utility Version 14.00.24210.0
Copyright (C) Microsoft Corporation.  All rights reserved.

        CC = cl -nologo
        LD = cl -nologo
        LDSHARED = cl -nologo -LD
        CFLAGS = -MD -Zi -W2 -wd4100 -wd4127 -wd4210 -wd4214 -wd4255 -wd4574  -wd4668 -wd4710 -wd4711 -wd4820 -wd4996  -we4028 -we4142 -O2sy-  -Zm600
        XCFLAGS = -DRUBY_EXPORT -I. -I.ext/include/x64-mswin64_140 -I./include -I. -I./enc/unicode/9.0.0
        CPPFLAGS =  -D_WIN32_WINNT=0x0600
        DLDFLAGS = -incremental:no -debug -opt:ref -opt:icf -dll
        SOLIBS =
Run options: "--ruby=.\\ruby.exe -I./lib -I.ext/x64-mswin64_140 -I. ./tool/runruby.rb --extout=.ext -- --disable-gems" --excludes-dir=./test/excludes --name=!/memory_leak/

# Running tests:

[247/305] RSS::TestRSS20Core#test_to_xml = 0.05 s
  1) Error:
RSS::TestRSS20Core#test_to_xml:
fatal: argc=7, sec=2, subsec=259379.00000000003, subsecx=0xffffffffa588f190
    D:/ruby-2.4.0-rc1_57079applied_mod/lib/rss/rss.rb:31:in `utc'
    D:/ruby-2.4.0-rc1_57079applied_mod/lib/rss/rss.rb:31:in `w3cdtf'
    D:8:in `content='
    D:/ruby-2.4.0-rc1_57079applied_mod/lib/rss/parser.rb:532:in `block in setup_next_element'
    D:/ruby-2.4.0-rc1_57079applied_mod/lib/rss/parser.rb:359:in `tag_end'
    D:/ruby-2.4.0-rc1_57079applied_mod/lib/rexml/parsers/streamparser.rb:29:in `parse'
    D:/ruby-2.4.0-rc1_57079applied_mod/lib/rexml/document.rb:242:in `parse_stream'
    D:/ruby-2.4.0-rc1_57079applied_mod/lib/rss/rexmlparser.rb:18:in `_parse'
    D:/ruby-2.4.0-rc1_57079applied_mod/lib/rss/parser.rb:165:in `parse'
    D:/ruby-2.4.0-rc1_57079applied_mod/lib/rss/parser.rb:80:in `parse'
    D:/ruby-2.4.0-rc1_57079applied_mod/test/rss/test_2.0.rb:408:in `test_to_xml'

Finished tests in 11.243141s, 27.1277 tests/s, 1068.7405 assertions/s.
305 tests, 12016 assertions, 0 failures, 1 errors, 0 skips

ruby -v: ruby 2.4.0rc1 (2016-12-12 trunk 57064) [x64-mswin64_140]
NMAKE : fatal error U1077: '.\ruby.exe' : リターン コード '0x1'
Stop.

D:\ruby-2.4.0-rc1_57079applied_mod>