ac4bddfcada2d7810412d10ede57b12ff3ec3b89 test job · Mroik/fitch@ac4bddf

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, actions-rs/toolchain@v1, actions-rs/cargo@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

unused imports: `cell::RefCell`, `rc::Rc`

unused import: `Node`

unused variable: `left`

unused variable: `right`

unused variable: `operation`

struct `Fitch` is never constructed

enum `Operation` is never used

associated items `new`, `empty`, `add_assumption`, `from_operation`, `internal_introduce`, and `internal_eliminate` are never used

associated function `generate_node` is never used

`fitch` (bin "fitch" test) generated 9 warnings (run `cargo fix --bin "fitch" --tests` to apply 5 suggestions)

The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

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