bug#22125: bless: non-deterministic failure on x86_64

[Mark H Weaver]

The following build of 'bless' on x86_64, the most recent at the time of
this writing, failed by timeout after 1 hour of silence:

  http://hydra.gnu.org/build/864760#tabs-buildsteps

Here's the tail of the failed build log:

--8<---------------cut here---------------start------------->8---
starting phase `build'
mpicxx -Wall -O3 -I ./boost/include -I ./google-sparsehash -I 
./zlib/install/include -I ./klib -I ./kmc/kmc_api -fopenmp -std=c++11 -c  
kmc/kmc_api/kmc_file.cpp -o kmc/kmc_api/kmc_file.o
mpicxx -Wall -O3 -I ./boost/include -I ./google-sparsehash -I 
./zlib/install/include -I ./klib -I ./kmc/kmc_api -fopenmp -std=c++11 -c  
kmc/kmc_api/kmer_api.cpp -o kmc/kmc_api/kmer_api.o
mpicxx -Wall -O3 -I ./boost/include -I ./google-sparsehash -I 
./zlib/install/include -I ./klib -I ./kmc/kmc_api -fopenmp -std=c++11 -c  
kmc/kmc_api/mmer.cpp -o kmc/kmc_api/mmer.o
mpicxx -Wall -O3 -I ./boost/include -I ./google-sparsehash -I 
./zlib/install/include -I ./klib -I ./kmc/kmc_api -fopenmp -std=c++11 -c  
murmurhash3/MurmurHash3.cpp -o murmurhash3/MurmurHash3.o
mpicxx -Wall -O3 -I ./boost/include -I ./google-sparsehash -I 
./zlib/install/include -I ./klib -I ./kmc/kmc_api -fopenmp -std=c++11 -c  
check_inputs.cpp -o check_inputs.o
mpicxx -Wall -O3 -I ./boost/include -I ./google-sparsehash -I 
./zlib/install/include -I ./klib -I ./kmc/kmc_api -fopenmp -std=c++11 -c  
correct_errors.cpp -o correct_errors.o
mpicxx -Wall -O3 -I ./boost/include -I ./google-sparsehash -I 
./zlib/install/include -I ./klib -I ./kmc/kmc_api -fopenmp -std=c++11 -c  
count_solid_kmers.cpp -o count_solid_kmers.o
mpicxx -Wall -O3 -I ./boost/include -I ./google-sparsehash -I 
./zlib/install/include -I ./klib -I ./kmc/kmc_api -fopenmp -std=c++11 -c  
main.cpp -o main.o
mpicxx -Wall -O3 -I ./boost/include -I ./google-sparsehash -I 
./zlib/install/include -I ./klib -I ./kmc/kmc_api -fopenmp -std=c++11 -c  
parse_args.cpp -o parse_args.o
mpicxx kmc/kmc_api/kmc_file.o kmc/kmc_api/kmer_api.o kmc/kmc_api/mmer.o 
murmurhash3/MurmurHash3.o check_inputs.o correct_errors.o count_solid_kmers.o 
main.o parse_args.o -o bless -lboost_filesystem -lboost_system 
-lboost_iostreams -lz -fopenmp -std=c++11
cd kmc; make CC=mpicxx
make[1]: warning: jobserver unavailable: using -j1.  Add '+' to parent make 
rule.
make[1]: Entering directory '/tmp/nix-build-bless-1p02.drv-0/v1p02/kmc'
mpicxx -Wall -O3 -m64 -fopenmp -pthread -std=c++11 -c 
kmer_counter/kmer_counter.cpp -o kmer_counter/kmer_counter.o
building of `/gnu/store/iwp3cd4p94lvfgkhyvpyzrghfsrm8mvj-bless-1p02.drv' timed 
out after 3600 seconds of silence
@ build-failed /gnu/store/iwp3cd4p94lvfgkhyvpyzrghfsrm8mvj-bless-1p02.drv - 
timeout
guix build: error: build failed: build of 
`/gnu/store/iwp3cd4p94lvfgkhyvpyzrghfsrm8mvj-bless-1p02.drv' failed
--8<---------------cut here---------------end--------------->8---

      Mark