[Debian-astro-maintainers] Bug#911941: mpgrafic FTBFS on amd64: tests fail: unexpected additional output line

[Helmut Grohne]

Source: mpgrafic
Version: 0.3.15-1
Severity: serious
Tags: ftbfs

mpgrafic fails to build from source in unstable on amd64. Here is a
reproducible log:

https://tests.reproducible-builds.org/debian/rbuild/unstable/amd64/mpgrafic_0.3.15-1.rbuild.log.gz

| ============================================================================
| See ./test-suite.log
| ============================================================================
| make[5]: *** [Makefile:705: test-suite.log] Error 1
| make[5]: Leaving directory '/build/1st/mpgrafic-0.3.15'
| make[4]: *** [Makefile:813: check-TESTS] Error 2
| make[4]: Leaving directory '/build/1st/mpgrafic-0.3.15'
| make[3]: *** [Makefile:1041: check-am] Error 2
| make[3]: Leaving directory '/build/1st/mpgrafic-0.3.15'
| make[2]: *** [Makefile:590: check-recursive] Error 1
| make[2]: Leaving directory '/build/1st/mpgrafic-0.3.15'
| dh_auto_test: make -j1 check VERBOSE=1 returned exit code 2
| +++regression test diagnostic+++
| ARCH_DEFAULT_MPI_IMPL=openmpi
| diff:
| --- Output.stdout.np32 2017-08-18 09:19:38.000000000 -1200
| +++ Output.stdout.np32.tmp 2019-11-19 03:54:55.398906633 -1200
| @@ -1,3 +1,4 @@
| +profitbricks-build15-amd64.52873hfi_wait_for_device: The /dev/hfi1_0 device failed to appear after 15.0 seconds: Connection timed out
|  
|   Will generate initial conditions on grid of size           32          32          32
|  
| Linux profitbricks-build15-amd64 4.18.0-0.bpo.1-amd64 #1 SMP Debian 4.18.6-1~bpo9+1 (2018-09-13) x86_64 GNU/Linux
| Processors on this machine:
| processor : 0
| processor : 1
| processor : 2
| processor : 3
| processor : 4
| processor : 5
| processor : 6
| processor : 7
| processor : 8
| processor : 9
| processor : 10
| processor : 11
| processor : 12
| processor : 13
| processor : 14
| processor : 15
| +++/regression test diagnostic+++
| make[1]: *** [debian/rules:33: override_dh_auto_test] Error 1
| make[1]: Leaving directory '/build/1st/mpgrafic-0.3.15'
| make: *** [debian/rules:16: build] Error 2
| dpkg-buildpackage: error: debian/rules build subprocess returned exit status 2

On reproducible ci, it seems to only happen on amd64 and not for armhf,
arm64 or i386. It seems to only happen in unstable and not in testing.
Building it locally in sbuild, I can see that it fails reliably.

Helmut