Error in re-building vignettes:
  ...
Loading dodgr
Re-compiling dodgr
'/home/hornik/tmp/R.check/r-devel-gcc/Work/build/bin/R' --no-site-file  \
  --no-environ --no-save --no-restore --quiet CMD INSTALL  \
  '/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/dodgr.Rcheck/vign_test/dodgr'  \
  --library='/home/hornik/tmp/scratch/RtmpWwIoO2/devtools_install_3e8b77d2e3b4'  \
  --no-R --no-data --no-help --no-demo --no-inst --no-docs --no-exec  \
  --no-multiarch --no-test-load --preclean 

* installing *source* package ‘dodgr’ ...
files ‘R/RcppExports.R’, ‘src/RcppExports.cpp’ have the wrong MD5 checksums
** libs
make[1]: Entering directory '/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/dodgr.Rcheck/vign_test/dodgr/src'
make[1]: Leaving directory '/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/dodgr.Rcheck/vign_test/dodgr/src'
make[1]: Entering directory '/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/dodgr.Rcheck/vign_test/dodgr/src'
g++-7 -std=gnu++11 -I"/home/hornik/tmp/R.check/r-devel-gcc/Work/build/include" -DNDEBUG -I. -I"/home/hornik/tmp/scratch/RtmpESRMAt/RLIBS_1b47544b9e58/Rcpp/include" -I/usr/local/include   -fpic  -g -O2 -Wall -pedantic -mtune=native -c RcppExports.cpp -o RcppExports.o
g++-7 -std=gnu++11 -I"/home/hornik/tmp/R.check/r-devel-gcc/Work/build/include" -DNDEBUG -I. -I"/home/hornik/tmp/scratch/RtmpESRMAt/RLIBS_1b47544b9e58/Rcpp/include" -I/usr/local/include   -fpic  -g -O2 -Wall -pedantic -mtune=native -c dgraph.cpp -o dgraph.o
g++-7 -std=gnu++11 -I"/home/hornik/tmp/R.check/r-devel-gcc/Work/build/include" -DNDEBUG -I. -I"/home/hornik/tmp/scratch/RtmpESRMAt/RLIBS_1b47544b9e58/Rcpp/include" -I/usr/local/include   -fpic  -g -O2 -Wall -pedantic -mtune=native -c dijkstra.cpp -o dijkstra.o
gcc-7 -I"/home/hornik/tmp/R.check/r-devel-gcc/Work/build/include" -DNDEBUG -I. -I"/home/hornik/tmp/scratch/RtmpESRMAt/RLIBS_1b47544b9e58/Rcpp/include" -I/usr/local/include   -fpic  -g -O3 -Wall -pedantic -mtune=native -c dodgr_init.c -o dodgr_init.o
g++-7 -std=gnu++11 -I"/home/hornik/tmp/R.check/r-devel-gcc/Work/build/include" -DNDEBUG -I. -I"/home/hornik/tmp/scratch/RtmpESRMAt/RLIBS_1b47544b9e58/Rcpp/include" -I/usr/local/include   -fpic  -g -O2 -Wall -pedantic -mtune=native -c graph-contract.cpp -o graph-contract.o
g++-7 -std=gnu++11 -I"/home/hornik/tmp/R.check/r-devel-gcc/Work/build/include" -DNDEBUG -I. -I"/home/hornik/tmp/scratch/RtmpESRMAt/RLIBS_1b47544b9e58/Rcpp/include" -I/usr/local/include   -fpic  -g -O2 -Wall -pedantic -mtune=native -c graph-sample.cpp -o graph-sample.o
g++-7 -std=gnu++11 -I"/home/hornik/tmp/R.check/r-devel-gcc/Work/build/include" -DNDEBUG -I. -I"/home/hornik/tmp/scratch/RtmpESRMAt/RLIBS_1b47544b9e58/Rcpp/include" -I/usr/local/include   -fpic  -g -O2 -Wall -pedantic -mtune=native -c graph.cpp -o graph.o
g++-7 -std=gnu++11 -I"/home/hornik/tmp/R.check/r-devel-gcc/Work/build/include" -DNDEBUG -I. -I"/home/hornik/tmp/scratch/RtmpESRMAt/RLIBS_1b47544b9e58/Rcpp/include" -I/usr/local/include   -fpic  -g -O2 -Wall -pedantic -mtune=native -c run_sp.cpp -o run_sp.o
g++-7 -std=gnu++11 -I"/home/hornik/tmp/R.check/r-devel-gcc/Work/build/include" -DNDEBUG -I. -I"/home/hornik/tmp/scratch/RtmpESRMAt/RLIBS_1b47544b9e58/Rcpp/include" -I/usr/local/include   -fpic  -g -O2 -Wall -pedantic -mtune=native -c sf-as-network.cpp -o sf-as-network.o
g++-7 -std=gnu++11 -I"/home/hornik/tmp/R.check/r-devel-gcc/Work/build/include" -DNDEBUG -I. -I"/home/hornik/tmp/scratch/RtmpESRMAt/RLIBS_1b47544b9e58/Rcpp/include" -I/usr/local/include   -fpic  -g -O2 -Wall -pedantic -mtune=native -c heaps/bheap.cpp -o heaps/bheap.o
g++-7 -std=gnu++11 -I"/home/hornik/tmp/R.check/r-devel-gcc/Work/build/include" -DNDEBUG -I. -I"/home/hornik/tmp/scratch/RtmpESRMAt/RLIBS_1b47544b9e58/Rcpp/include" -I/usr/local/include   -fpic  -g -O2 -Wall -pedantic -mtune=native -c heaps/fheap.cpp -o heaps/fheap.o
g++-7 -std=gnu++11 -I"/home/hornik/tmp/R.check/r-devel-gcc/Work/build/include" -DNDEBUG -I. -I"/home/hornik/tmp/scratch/RtmpESRMAt/RLIBS_1b47544b9e58/Rcpp/include" -I/usr/local/include   -fpic  -g -O2 -Wall -pedantic -mtune=native -c heaps/heap23.cpp -o heaps/heap23.o
g++-7 -std=gnu++11 -I"/home/hornik/tmp/R.check/r-devel-gcc/Work/build/include" -DNDEBUG -I. -I"/home/hornik/tmp/scratch/RtmpESRMAt/RLIBS_1b47544b9e58/Rcpp/include" -I/usr/local/include   -fpic  -g -O2 -Wall -pedantic -mtune=native -c heaps/radixheap.cpp -o heaps/radixheap.o
g++-7 -std=gnu++11 -I"/home/hornik/tmp/R.check/r-devel-gcc/Work/build/include" -DNDEBUG -I. -I"/home/hornik/tmp/scratch/RtmpESRMAt/RLIBS_1b47544b9e58/Rcpp/include" -I/usr/local/include   -fpic  -g -O2 -Wall -pedantic -mtune=native -c heaps/triheap.cpp -o heaps/triheap.o
g++-7 -std=gnu++11 -I"/home/hornik/tmp/R.check/r-devel-gcc/Work/build/include" -DNDEBUG -I. -I"/home/hornik/tmp/scratch/RtmpESRMAt/RLIBS_1b47544b9e58/Rcpp/include" -I/usr/local/include   -fpic  -g -O2 -Wall -pedantic -mtune=native -c heaps/triheap_ext.cpp -o heaps/triheap_ext.o
g++-7 -std=gnu++11 -shared -L/home/hornik/tmp/R.check/r-devel-gcc/Work/build/lib -Wl,-O1 -o dodgr.so RcppExports.o dgraph.o dijkstra.o dodgr_init.o graph-contract.o graph-sample.o graph.o run_sp.o sf-as-network.o heaps/bheap.o heaps/fheap.o heaps/heap23.o heaps/radixheap.o heaps/triheap.o heaps/triheap_ext.o -L/home/hornik/tmp/R.check/r-devel-gcc/Work/build/lib -lR
make[1]: Leaving directory '/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/dodgr.Rcheck/vign_test/dodgr/src'
make[1]: Entering directory '/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/dodgr.Rcheck/vign_test/dodgr/src'
make[1]: Leaving directory '/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/dodgr.Rcheck/vign_test/dodgr/src'
installing to /home/hornik/tmp/scratch/RtmpWwIoO2/devtools_install_3e8b77d2e3b4/dodgr/libs
* DONE (dodgr)
Quitting from lines 95-112 (benchmark.Rmd) 
Error: processing vignette ‘benchmark.Rmd’ failed with diagnostics:
there is no package called 'purrr'
Execution halted