• Couldn't match type ‘k3’ with ‘*’

• Couldn't match type ‘k1’ with ‘*’

• Couldn't match type ‘k2’ with ‘*’

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v2, actions/cache@v2, haskell-actions/setup@v2. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, actions/cache@v2. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

Module ‘Control.Monad.Identity’ does not export ‘fail’

Noncanonical ‘return’ definition detected

Module ‘Control.Monad.Identity’ does not export ‘fail’

Noncanonical ‘return’ definition detected

Pattern match(es) are non-exhaustive

Pattern match(es) are non-exhaustive

Pattern match(es) are non-exhaustive

The import of ‘Control.Applicative’ is redundant

Module ‘Control.Monad.Identity’ does not export ‘fail’

Noncanonical ‘return’ definition detected

Noncanonical ‘return’ definition detected