The process 'D:\cygwin\wrapperbin\opam.cmd' failed with exit code 20

The process 'D:\cygwin\wrapperbin\opam.cmd' failed with exit code 20

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v3. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

Failed to save: Unable to reserve cache with key v1-setup-ocaml-cygwin-1-3.5.3-2024-16, another job may be creating this cache. More details: Cache already exists. Scope: refs/pull/56/merge, Key: v1-setup-ocaml-cygwin-1-3.5.3-2024-16, Version: 458261791342880f2c1bfd3d344236ae539238781514d74965839a345bfa2273

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v3. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

Failed to save: Unable to reserve cache with key v1-setup-ocaml-cygwin-1-3.5.3-2024-16, another job may be creating this cache. More details: Cache already exists. Scope: refs/pull/56/merge, Key: v1-setup-ocaml-cygwin-1-3.5.3-2024-16, Version: 458261791342880f2c1bfd3d344236ae539238781514d74965839a345bfa2273

An error has been caught in some system package index files, so the system package index files have been re-synchronised, and the system package installation has been retried: the process 'd:\cygwin\wrapperbin\opam.cmd' failed with exit code 20