Resolving dependencies...
Warning: The following packages are likely to be broken by the reinstalls:
process-1.6.9.0
haskeline-0.8.0.1
ghc-8.10.2
Cabal-3.2.0.0
libiserv-8.10.2
ghci-8.10.2
directory-1.3.6.0
hpc-0.6.1.0
ghc-boot-8.10.2
Continuing even though the plan contains dangerous reinstalls.
Starting     bytestring-0.11.2.0
Building     bytestring-0.11.2.0
Completed    bytestring-0.11.2.0
Starting     unix-2.7.2.2
Building     unix-2.7.2.2
Completed    unix-2.7.2.2
Downloading  serialport-0.5.4
Downloaded   serialport-0.5.4
Starting     serialport-0.5.4
Building     serialport-0.5.4
Completed    serialport-0.5.4