yt INST_CONDA=1 with rockstar fail

EXECUTING:
  /home/hd/hd_hd/user/yt-conda/bin/git clone https://github.com/yt-project/yt_conda /home/hd/hd_hd/user/yt-conda/src/yt_conda
Cloning into '/home/hd/hd_hd/user/yt-conda/src/yt_conda'...
Cloning into '/home/hd/hd_hd/user/yt-conda/src/rockstar'...
EXECUTING:
  /home/hd/hd_hd/user/yt-conda/bin/conda build /home/hd/hd_hd/user/yt-conda/src/yt_conda/rockstar
requesting all changes
adding changesets
adding manifests
adding file changes
added 23 changesets with 385 changes to 142 files
updating to branch default
142 files updated, 0 files merged, 0 files removed, 0 files unresolved
updating to branch default
142 files updated, 0 files merged, 0 files removed, 0 files unresolved
27 files updated, 0 files merged, 0 files removed, 0 files unresolved
+ source /home/hd/hd_hd/user/yt-conda/bin/activate /home/hd/hd_hd/user/yt-conda/conda-bld/rockstar_1497876163807/_b_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_pl
+ make lib
gcc -m64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_BSD_SOURCE -D_POSIX_SOURCE -D_POSIX_C_SOURCE=200809L -D_SVID_SOURCE -D_DARWIN_C_SOURCE -Wall -fno-math-errno -fPIC  -shared rockstar.c check_syscalls.c fof.c groupies.c subhalo_metric.c potential.c nfw.c jacobi.c fun_times.c interleaving.c universe_time.c hubble.c integrate.c distance.c config_vars.c config.c bounds.c inthash.c io/read_config.c client.c server.c merger.c inet/socket.c inet/rsocket.c inet/address.c io/meta_io.c io/io_internal.c io/io_ascii.c io/stringparse.c io/io_gadget.c io/io_generic.c io/io_art.c io/io_tipsy.c io/io_bgc2.c io/io_util.c io/io_arepo.c io/io_hdf5.c -o librockstar.so -lm -O3 -std=c99
/opt/bwhpc/common/compiler/gnu/5.2.0/libexec/gcc/x86_64-unknown-linux-gnu/5.2.0/cc1: error while loading shared libraries: libisl.so.10: cannot open shared object file: No such file or directory
make: *** [lib] Error 1
BUILD START: rockstar-1.0.0-0
checkout: 'tip'
Package: rockstar-1.0.0-0
source tree in: /home/hd/hd_hd/user/yt-conda/conda-bld/rockstar_1497876163807/work
Traceback (most recent call last):
  File "/home/hd/hd_hd/user/yt-conda/bin/conda-build", line 6, in <module>
    sys.exit(conda_build.cli.main_build.main())
  File "/home/hd/hd_hd/user/yt-conda/lib/python3.6/site-packages/conda_build/cli/main_build.py", line 334, in main
    execute(sys.argv[1:])
  File "/home/hd/hd_hd/user/yt-conda/lib/python3.6/site-packages/conda_build/cli/main_build.py", line 325, in execute
    noverify=args.no_verify)
  File "/home/hd/hd_hd/user/yt-conda/lib/python3.6/site-packages/conda_build/api.py", line 97, in build
    need_source_download=need_source_download, config=config)
  File "/home/hd/hd_hd/user/yt-conda/lib/python3.6/site-packages/conda_build/build.py", line 1518, in build_tree
    config=config)
  File "/home/hd/hd_hd/user/yt-conda/lib/python3.6/site-packages/conda_build/build.py", line 1143, in build
    utils.check_call_env(cmd, env=env, cwd=src_dir)
  File "/home/hd/hd_hd/user/yt-conda/lib/python3.6/site-packages/conda_build/utils.py", line 628, in check_call_env
    return _func_defaulting_env_to_os_environ(subprocess.check_call, *popenargs, **kwargs)
  File "/home/hd/hd_hd/user/yt-conda/lib/python3.6/site-packages/conda_build/utils.py", line 624, in _func_defaulting_env_to_os_environ
    return func(_args, **kwargs)
  File "/home/hd/hd_hd/user/yt-conda/lib/python3.6/subprocess.py", line 291, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['/bin/bash', '-x', '-e', '/home/hd/hd_hd/user/yt-conda/conda-bld/rockstar_1497876163807/work/conda_build.sh']' returned non-zero exit status 2.