Switch all builds from Travis to Cirrus

Travis has been super-slow lately (> 6 hours per build).  Cirrus is much
faster: about 20 minutes.  Cirrus also has slightly better test
coverage, mainly because it doesn't use SECCOMP.

Also,

* Fix the Redox CI build.  The old Travis configuration didn't actually
  build for Redox, so we never noticed that Redox can't be built with a
  stable compiler.  Thanks to @coolreader18 for finding this.

* Disable the udp_offload tests on cross-tested platforms.  These tests
  are failing with ENOPROTOOPT in Cirrus-CI.  I suspect it's due to a
  lack of support in QEMU.  These tests were skipped on Travis because
  its kernel was too old.

* Fix require_kernel_version on Cirrus-CI.  Cirrus reports the Linux
  kernel version as 4.19.112+, which the semver crate can't handle.

* Fix test_setfsuid on Cirrus.  When run on Cirrus, it seems like the
  file in /tmp gets deleted as soon as it's closed.  Probably an
  overzealous temporary file cleaner.  Use /var/tmp, because no
  temporary file cleaner should run in there.

* Skip mount tests on Cirrus.  They fail for an unknown reason.
Issue #1351

* Skip the AF_ALG tests on Cirrus-CI
Issue #1352

1 files changed, 40 insertions, 11 deletions

diff --git a/bors.toml b/bors.toml
index 1a0ec6f8..e36dabda 100644
--- a/bors.toml
+++ b/bors.toml
@@ -1,16 +1,45 @@
 # Gate on Travis CI and Buildbot
-status = ["continuous-integration/travis-ci/push",
-	  "FreeBSD 11.4"]
+status = [
+  "FreeBSD amd64 & i686",
+  "OSX x86_64",
+  "OSX i686",
+  "iOS",
+  "Linux aarch64",
+  "Linux arm gnueabi",
+  "Linux armv7 gnueabihf",
+  "Linux i686",
+  "Linux i686 musl",
+  "Linux MIPS",
+  "Linux MIPS64",
+  "Linux MIPS64 el",
+  "Linux mipsel",
+  "Linux powerpc64le",
+  "Rust Stable",
+  "Linux x86_64",
+  "Linux x86_64 musl",
+  "Android aarch64",
+  "Android arm",
+  "Android armv7",
+  "Android i686",
+  "Android x86_64",
+  "Linux arm-musleabi",
+  "Linux powerpc",
+  "Linux s390x",
+  "Linux s390x",
+  "NetBSD x86_64",
+  "Redox x86_64",
+  "Minver",
+]
 
-# Set bors's timeout to 4 hours
+# Set bors's timeout to 1 hour
 #
-# bors's timeout should always be twice a long as the test suite takes.
-# This is to allow Travis to fast-fail a test; if one of the builders
+# bors's timeout should always be at least twice as long as the test suite
+# takes.  This is to allow Travis to fast-fail a test; if one of the builders
 # immediately reports a failure, then bors will move on to the next batch,
-# leaving the slower builders to work through the already-doomed run and
-# the next one.
+# leaving the slower builders to work through the already-doomed run and the
+# next one.
 #
-# At the time this was written, nix's test suite took about an hour to run.
-# The timeout was raised to four hours, instead of two, to give nix room
-# to grow and time for delays on Travis's end.
-timeout_sec = 14400
+# At the time this was written, nix's test suite took about twenty minutes to
+# run.  The timeout was raised to one hour to give nix room to grow and time
+# for delays on Cirrus's end.
+timeout_sec = 3600