Building 0.7.4 with nimble fails
Attempting to build 0.7.4 with nimble fails without a useful error message:
```
$ nimble install choosenim --verbose
    Reading config file at /home/squattingmonk/.config/nimble/nimble.ini
    Reading official package list
Downloading https://github.com/dom96/choosenim using git
    Cloning latest tagged version: v0.7.4
  Verifying dependencies for choosenim@0.7.4
    Reading official package list
   Checking for nimble@#8f7af86
      Info: Dependency on nimble@#8f7af86 already satisfied
  Verifying dependencies for nimble@#8f7af86
    Reading official package list
   Checking for nimterop@>= 0.6.12
      Info: Dependency on nimterop@>= 0.6.12 already satisfied
  Verifying dependencies for nimterop@0.6.13
    Reading official package list
   Checking for regex@>= 0.15.0
      Info: Dependency on regex@>= 0.15.0 already satisfied
  Verifying dependencies for regex@0.17.0
    Reading official package list
   Checking for unicodedb@>= 0.7.2
      Info: Dependency on unicodedb@>= 0.7.2 already satisfied
  Verifying dependencies for unicodedb@0.9.0
    Reading official package list
   Checking for unicodeplus@>= 0.5.0
      Info: Dependency on unicodeplus@>= 0.5.0 already satisfied
  Verifying dependencies for unicodeplus@0.8.0
    Reading official package list
   Checking for unicodedb@>= 0.8
      Info: Dependency on unicodedb@>= 0.8 already satisfied
  Verifying dependencies for unicodedb@0.9.0
    Reading official package list
   Checking for segmentation@>= 0.1
      Info: Dependency on segmentation@>= 0.1 already satisfied
  Verifying dependencies for segmentation@0.1.0
    Reading official package list
   Checking for unicodedb@>= 0.8.0
      Info: Dependency on unicodedb@>= 0.8.0 already satisfied
  Verifying dependencies for unicodedb@0.9.0
    Reading official package list
   Checking for cligen@>= 1.0.0
      Info: Dependency on cligen@>= 1.0.0 already satisfied
  Verifying dependencies for cligen@1.2.2
    Reading official package list
   Checking for nimarchive@>= 0.5.3
      Info: Dependency on nimarchive@>= 0.5.3 already satisfied
  Verifying dependencies for nimarchive@0.5.4
    Reading official package list
   Checking for nimterop@>= 0.6.6
      Info: Dependency on nimterop@>= 0.6.6 already satisfied
  Verifying dependencies for nimterop@0.6.13
    Reading official package list
   Checking for regex@>= 0.15.0
      Info: Dependency on regex@>= 0.15.0 already satisfied
  Verifying dependencies for regex@0.17.0
    Reading official package list
   Checking for unicodedb@>= 0.7.2
      Info: Dependency on unicodedb@>= 0.7.2 already satisfied
  Verifying dependencies for unicodedb@0.9.0
    Reading official package list
   Checking for unicodeplus@>= 0.5.0
      Info: Dependency on unicodeplus@>= 0.5.0 already satisfied
  Verifying dependencies for unicodeplus@0.8.0
    Reading official package list
   Checking for unicodedb@>= 0.8
      Info: Dependency on unicodedb@>= 0.8 already satisfied
  Verifying dependencies for unicodedb@0.9.0
    Reading official package list
   Checking for segmentation@>= 0.1
      Info: Dependency on segmentation@>= 0.1 already satisfied
  Verifying dependencies for segmentation@0.1.0
    Reading official package list
   Checking for unicodedb@>= 0.8.0
      Info: Dependency on unicodedb@>= 0.8.0 already satisfied
  Verifying dependencies for unicodedb@0.9.0
    Reading official package list
   Checking for cligen@>= 1.0.0
      Info: Dependency on cligen@>= 1.0.0 already satisfied
  Verifying dependencies for cligen@1.2.2
    Reading official package list
   Checking for analytics@>= 0.2.0
      Info: Dependency on analytics@>= 0.2.0 already satisfied
  Verifying dependencies for analytics@0.2.0
    Reading official package list
   Checking for uuids@>= 0.1.7
      Info: Dependency on uuids@>= 0.1.7 already satisfied
  Verifying dependencies for uuids@0.1.10
    Reading official package list
   Checking for isaac@>= 0.1.3
      Info: Dependency on isaac@>= 0.1.3 already satisfied
  Verifying dependencies for isaac@0.1.3
    Reading official package list
   Checking for osinfo@>= 0.3.0
      Info: Dependency on osinfo@>= 0.3.0 already satisfied
  Verifying dependencies for osinfo@0.3.2
    Reading official package list
   Checking for osinfo@>= 0.3.0
      Info: Dependency on osinfo@>= 0.3.0 already satisfied
  Verifying dependencies for osinfo@0.3.2
 Installing choosenim@0.7.4
   Building choosenim/choosenim using c backend
    Prompt: Build failed for 'choosenim@0.7.4', would you like to try installing 'choosenim@#head' (latest unstable)? [y/N]
    Answer: n
     Error: Aborting installation due to build failure
```
## Details
OS: Arch Linux 5.9.1
Nim: 1.4.0
Nimble: 0.11.0