Warning: The install command is a part of the legacy v1 style of cabal usage.

Please switch to using either the new project style and the new-install
command or the legacy v1-install alias as new-style projects will become the
default in the next version of cabal-install. Please file a bug if you cannot
replicate a working v1- use case with the new-style commands.

For more information, see: https://wiki.haskell.org/Cabal/NewBuild

Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: api-tools-0.8.0.2 (user goal)
[__1] trying: template-haskell-2.14.0.0/installed-2.1... (dependency of
api-tools)
[__2] next goal: safecopy (dependency of api-tools)
[__2] rejecting: safecopy-0.9.4.1 (conflict:
template-haskell==2.14.0.0/installed-2.1..., safecopy =>
template-haskell<2.14)
[__2] rejecting: safecopy-0.9.4, safecopy-0.9.3.3 (conflict:
template-haskell==2.14.0.0/installed-2.1..., safecopy =>
template-haskell<2.13)
[__2] rejecting: safecopy-0.9.3.2, safecopy-0.9.3.1, safecopy-0.9.3,
safecopy-0.9.2, safecopy-0.9.1 (conflict:
template-haskell==2.14.0.0/installed-2.1..., safecopy =>
template-haskell<2.12)
[__2] rejecting: safecopy-0.9.0.1, safecopy-0.9.0 (conflict:
template-haskell==2.14.0.0/installed-2.1..., safecopy =>
template-haskell<2.11)
[__2] rejecting: safecopy-0.8.6, safecopy-0.8.5, safecopy-0.8.4,
safecopy-0.8.3, safecopy-0.8.2 (conflict: template-haskell =>
base==4.12.0.0/installed-4.1..., safecopy => base>=4.5 && <4.9)
[__2] rejecting: safecopy-0.8.1 (conflict: template-haskell =>
base==4.12.0.0/installed-4.1..., safecopy => base>=4.5 && <4.7)
[__2] rejecting: safecopy-0.8.0, safecopy-0.7.2, safecopy-0.7.1,
safecopy-0.7.0, safecopy-0.6.3, safecopy-0.6.2, safecopy-0.6.1,
safecopy-0.6.0, safecopy-0.5.1, safecopy-0.5, safecopy-0.4.3, safecopy-0.4.2,
safecopy-0.4.1, safecopy-0.4, safecopy-0.3, safecopy-0.2, safecopy-0.1
(conflict: api-tools => safecopy>=0.8.1 && <0.10)
[__2] fail (backjumping, conflict set: api-tools, safecopy, template-haskell)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: template-haskell, safecopy, api-tools,
base