Skip a GC test known to be flaky:

  https://issues.guix.gnu.org/issue/37425
  https://github.com/golang/go/issues/27636

--- go/src/runtime/gc_test.go	2019-09-16 23:10:18.200680387 +0200
+++ go/src/runtime/gc_test.go	2019-09-16 23:11:50.324360646 +0200
@@ -27,6 +27,9 @@ func TestGcSys(t *testing.T) {
 	if runtime.GOOS == "linux" && runtime.GOARCH == "arm64" {
 		t.Skip("skipping test; GOOS=linux GOARCH=arm64 https://github.com/golang/go/issues/27636")
 	}
+	if runtime.GOOS == "linux" {
+		t.Skip("skipping test; GOOS=linux https://issues.guix.gnu.org/issue/37425")
+	}
 	got := runTestProg(t, "testprog", "GCSys")
 	want := "OK\n"
 	if got != want {
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<div class='path'>path: <a href='/guix/log/?id=8b6b097714962beeb675cad6425b2417dc564dab'>root</a>/<a href='/guix/log/gnu?id=8b6b097714962beeb675cad6425b2417dc564dab'>gnu</a>/<a href='/guix/log/gnu/packages?id=8b6b097714962beeb675cad6425b2417dc564dab'>packages</a>/<a href='/guix/log/gnu/packages/perl-web.scm?id=8b6b097714962beeb675cad6425b2417dc564dab'>perl-web.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/perl-web.scm?id=8b6b097714962beeb675cad6425b2417dc564dab&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-12-13 17:48:25 +0100'>2021-12-13</span></td><td><a href='/guix/commit/gnu/packages/perl-web.scm?id=8394619baceb118df92e355377fd543bb1aa501a'>gnu: Simplify package inputs.</a><span class='msg-avail'>...<span class='msg-tooltip'>This commit was obtained by running:

  ./pre-inst-env guix style

without any additional argument.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-05-19 22:49:33 +0300'>2021-05-19</span></td><td><a href='/guix/commit/gnu/packages/perl-web.scm?id=43c156ea724dd12f40df32507073f12daeb81d73'>gnu: perl-mojolicious: Update to 9.17.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/perl-web.scm (perl-mojolicious): Update to 9.17.
</span></span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2021-02-28 11:21:49 +0100'>2021-02-28</span></td><td><a href='/guix/commit/gnu/packages/perl-web.scm?id=a359b807e16bc15623664cad500561a5183f776a'>gnu: perl-mojolicious: Use HTTPS home page URI.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/perl-web.scm (perl-mojolicious)[home-page]: Use HTTPS URI.
</span></span></td><td>Nicolas Goaziou</td></tr>