Seems to work fine for me:
➜ trunk git:(master) ✗ nimble --verbose install polymorph
Reading official package list
Downloading <https://github.com/rlipsc/polymorph> using git
Cloning latest tagged version: v0.3.1
Verifying dependencies for [email protected]
Installing [email protected]
Copying file
/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/nimble_10849/githubcom_rlipscpolymorph/src/polymorph/entities.nim
to /Users/DM/.nimble/pkgs/polymorph-0.3.1/polymorph/entities.nim Copying file
/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/nimble_10849/githubcom_rlipscpolymorph/src/polymorph/statechanges.nim
to /Users/DM/.nimble/pkgs/polymorph-0.3.1/polymorph/statechanges.nim Copying
file
/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/nimble_10849/githubcom_rlipscpolymorph/src/polymorph/private/debugging.nim
to /Users/DM/.nimble/pkgs/polymorph-0.3.1/polymorph/private/debugging.nim
Copying file
/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/nimble_10849/githubcom_rlipscpolymorph/src/polymorph/private/mutationtracking.nim
to
/Users/DM/.nimble/pkgs/polymorph-0.3.1/polymorph/private/mutationtracking.nim
Copying file
/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/nimble_10849/githubcom_rlipscpolymorph/src/polymorph/private/identities.nim
to /Users/DM/.nimble/pkgs/polymorph-0.3.1/polymorph/private/identities.nim
Copying file
/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/nimble_10849/githubcom_rlipscpolymorph/src/polymorph/private/ecsstatedbgen.nim
to /Users/DM/.nimble/pkgs/polymorph-0.3.1/polymorph/private/ecsstatedbgen.nim
Copying file
/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/nimble_10849/githubcom_rlipscpolymorph/src/polymorph/private/nodeutils.nim
to /Users/DM/.nimble/pkgs/polymorph-0.3.1/polymorph/private/nodeutils.nim
Copying file
/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/nimble_10849/githubcom_rlipscpolymorph/src/polymorph/private/eventutils.nim
to /Users/DM/.nimble/pkgs/polymorph-0.3.1/polymorph/private/eventutils.nim
Copying file
/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/nimble_10849/githubcom_rlipscpolymorph/src/polymorph/private/statechangeutils.nim
to
/Users/DM/.nimble/pkgs/polymorph-0.3.1/polymorph/private/statechangeutils.nim
Copying file
/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/nimble_10849/githubcom_rlipscpolymorph/src/polymorph/private/statechangegen.nim
to /Users/DM/.nimble/pkgs/polymorph-0.3.1/polymorph/private/statechangegen.nim
Copying file
/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/nimble_10849/githubcom_rlipscpolymorph/src/polymorph/private/utils.nim
to /Users/DM/.nimble/pkgs/polymorph-0.3.1/polymorph/private/utils.nim Copying
file
/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/nimble_10849/githubcom_rlipscpolymorph/src/polymorph/private/ecsstatedb.nim
to /Users/DM/.nimble/pkgs/polymorph-0.3.1/polymorph/private/ecsstatedb.nim
Copying file
/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/nimble_10849/githubcom_rlipscpolymorph/src/polymorph/private/ecsstatedbaccess.nim
to
/Users/DM/.nimble/pkgs/polymorph-0.3.1/polymorph/private/ecsstatedbaccess.nim
Copying file
/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/nimble_10849/githubcom_rlipscpolymorph/src/polymorph/runtimeconstruction.nim
to /Users/DM/.nimble/pkgs/polymorph-0.3.1/polymorph/runtimeconstruction.nim
Copying file
/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/nimble_10849/githubcom_rlipscpolymorph/src/polymorph/sharedtypes.nim
to /Users/DM/.nimble/pkgs/polymorph-0.3.1/polymorph/sharedtypes.nim Copying
file
/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/nimble_10849/githubcom_rlipscpolymorph/src/polymorph/sealing.nim
to /Users/DM/.nimble/pkgs/polymorph-0.3.1/polymorph/sealing.nim Copying file
/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/nimble_10849/githubcom_rlipscpolymorph/src/polymorph/systems.nim
to /Users/DM/.nimble/pkgs/polymorph-0.3.1/polymorph/systems.nim Copying file
/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/nimble_10849/githubcom_rlipscpolymorph/src/polymorph/components.nim
to /Users/DM/.nimble/pkgs/polymorph-0.3.1/polymorph/components.nim Copying
file
/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/nimble_10849/githubcom_rlipscpolymorph/src/polymorph.nim
to /Users/DM/.nimble/pkgs/polymorph-0.3.1/polymorph.nim Copying file
/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/nimble_10849/githubcom_rlipscpolymorph/polymorph.nimble
to /Users/DM/.nimble/pkgs/polymorph-0.3.1/polymorph.nimble
Success: polymorph installed successfully.
