SIGINT is ignored in the Guix build environment.

--- a/Lib/test/test_regrtest.py
+++ b/Lib/test/test_regrtest.py
@@ -399,6 +399,8 @@
         output = self.run_tests('--fromfile', filename)
         self.check_executed_tests(output, tests)
 
+    @unittest.skipIf(True,
+        "KeyboardInterrupts do not work in the build environment")
     def test_interrupted(self):
         code = TEST_INTERRUPTED
         test = self.create_test('sigint', code=code)
@@ -416,6 +418,8 @@
                  % (self.TESTNAME_REGEX, len(tests)))
         self.check_line(output, regex)
 
+    @unittest.skipIf(True,
+        "KeyboardInterrupts do not work in the build environment")
     def test_slow_interrupted(self):
         # Issue #25373: test --slowest with an interrupted test
         code = TEST_INTERRUPTED
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<div class='path'>path: <a href='/guix/log/?id=ede2e1f43457ef91f208a555de0a659f0727a9e1'>root</a>/<a href='/guix/log/gnu?id=ede2e1f43457ef91f208a555de0a659f0727a9e1'>gnu</a>/<a href='/guix/log/gnu/packages?id=ede2e1f43457ef91f208a555de0a659f0727a9e1'>packages</a>/<a href='/guix/log/gnu/packages/cdrom.scm?id=ede2e1f43457ef91f208a555de0a659f0727a9e1'>cdrom.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/cdrom.scm?id=ede2e1f43457ef91f208a555de0a659f0727a9e1&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-11-08 23:40:44 +0200'>2020-11-08</span></td><td><a href='/guix/commit/gnu/packages/cdrom.scm?id=495acfc56602c1bd768d470256704cf1ff80540a'>gnu: cdemu-client: Update source URI.</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2020-11-08 23:39:22 +0200'>2020-11-08</span></td><td><a href='/guix/commit/gnu/packages/cdrom.scm?id=3c9b9dc865a3123f6624470f8afb3b822a0753a1'>gnu: cdemu-daemon: Use sourceforge mirror.</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2020-11-08 23:37:26 +0200'>2020-11-08</span></td><td><a href='/guix/commit/gnu/packages/cdrom.scm?id=b667c540d1d1b67c5165905dfb580a13d321c8ed'>gnu: libmirage: Update source URI.</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2020-10-16 02:03:24 +0200'>2020-10-16</span></td><td><a href='/guix/commit/gnu/packages/cdrom.scm?id=25bc6ffdd06521702094bb799dd300090ac0bc52'>gnu: asunder: Update to 2.9.7.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-07-12 23:08:15 +0200'>2020-07-12</span></td><td><a href='/guix/commit/gnu/packages/cdrom.scm?id=b0e7b6992f3f845e83cfbca4d700b51dba50b4d5'>gnu: Remove ".git" from "https://github/…/….git".</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-06-21 17:36:40 +0200'>2020-06-21</span></td><td><a href='/guix/commit/gnu/packages/cdrom.scm?id=f458958543c0db5744c70ee4bc655b6627af24ac'>gnu: Add cdrdao.</a><span class='msg-avail'>...</span></td><td>Timotej Lazar</td></tr>
<tr><td><span title='2020-06-02 18:06:03 +0200'>2020-06-02</span></td><td><a href='/guix/commit/gnu/packages/cdrom.scm?id=dc67e9e5b2485e7a2f50b3979bdff968028eec42'>gnu: asunder: Update to 2.9.6.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-05-13 09:30:26 +0300'>2020-05-13</span></td><td><a href='/guix/commit/gnu/packages/cdrom.scm?id=3c986a7dc268756c097212de958f046b29b76c1b'>mailmap: Update entries for Nikita.</a><span class='msg-avail'>...</span></td><td>nikita</td></tr>
<tr><td><span title='2020-04-11 00:10:23 +0200'>2020-04-11</span></td><td><a href='/guix/commit/gnu/packages/cdrom.scm?id=bdb90df764661c11b37c988ea129c8e7a01b1889'>Merge branch 'master' into core-updates</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-04-10 13:49:25 +0300'>2020-04-10</span></td><td><a href='/guix/commit/gnu/packages/cdrom.scm?id=d90286ed5467bb7a0d50aabf252cf7fda78e97dc'>gnu: xorriso: Build gui frontend.</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2020-04-08 13:00:50 +0200'>2020-04-08</span></td><td><a href='/guix/commit/gnu/packages/cdrom.scm?id=27783023993f9272ce422868d14529159c4a5218'>Merge branch 'master' into core-updates</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-04-04 15:48:44 +0200'>2020-04-04</span></td><td><a href='/guix/commit/gnu/packages/cdrom.scm?id=f2d97d577d1dd527bbc707d857ccd0de81714420'>gnu: Replace uses of 'gettext' with 'gettext-minimal'.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-03-14 13:13:40 +0100'>2020-03-14</span></td><td><a href='/guix/commit/gnu/packages/cdrom.scm?id=961d2ee2695b38503b463d055e9c7edbcc0bf307'>Merge branch 'master' into core-updates</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-03-14 03:43:46 +0100'>2020-03-14</span></td><td><a href='/guix/commit/gnu/packages/cdrom.scm?id=954bfbdf775d5edd3de162d33f69ed586e0f3103'>gnu: cdparanoia: Use HTTPS home page.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>