mps-edge-x86_64:~/aports/community/crystal > abuild build                                                                                                           master
Using /usr/bin/llvm-config [version=10.0.1]
CRYSTAL_CONFIG_LIBRARY_PATH="" CRYSTAL_CONFIG_BUILD_COMMIT="d042abe11b" SOURCE_DATE_EPOCH="1608888180" ./bin/crystal build --release --no-debug --link-flags="-Wl,--as-needed"  -o .build/crystal src/compiler/crystal.cr -D without_openssl -D without_zlib
CRYSTAL_PATH env variable does not contains /home/mps/aports/community/crystal/src/crystal-master/src
Showing last frame. Use --error-trace for full trace.

In src/compiler/crystal.cr:1:1

 1 | # This is the file that is compiled to generate the
     ^
Error: can't find file 'prelude'

If you're trying to require a shard:
- Did you remember to run `shards install`?
- Did you make sure you're running the compiler in the same directory as your shard.yml?
make: *** [Makefile:122: .build/crystal] Error 1
>>> ERROR: crystal: build failed
mps-edge-x86_64:~/aports/community/crystal >