[INFO] cloning repository https://github.com/sayaks/fraction-interpreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sayaks/fraction-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsayaks%2Ffraction-interpreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsayaks%2Ffraction-interpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f1ebb1090b73fbcbf5dc30093dc7e91f34a70ea
[INFO] checking sayaks/fraction-interpreter against master#bdcb6a99e853732f8ec050ae4986aa3af51d44c5 for 92191_revert
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsayaks%2Ffraction-interpreter" "/workspace/builds/worker-112/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-112/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sayaks/fraction-interpreter on toolchain bdcb6a99e853732f8ec050ae4986aa3af51d44c5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bdcb6a99e853732f8ec050ae4986aa3af51d44c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sayaks/fraction-interpreter
[INFO] finished tweaking git repo https://github.com/sayaks/fraction-interpreter
[INFO] tweaked toml for git repo https://github.com/sayaks/fraction-interpreter written to /workspace/builds/worker-112/source/Cargo.toml
[INFO] crate git repo https://github.com/sayaks/fraction-interpreter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bdcb6a99e853732f8ec050ae4986aa3af51d44c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] running `Command { std: "docker" "start" "-a" "edff64f7d8d03c22f1acfc22dd89bd08596a28c4cf819902caa0313f3be1ad05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "edff64f7d8d03c22f1acfc22dd89bd08596a28c4cf819902caa0313f3be1ad05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edff64f7d8d03c22f1acfc22dd89bd08596a28c4cf819902caa0313f3be1ad05", kill_on_drop: false }`
[INFO] [stdout] edff64f7d8d03c22f1acfc22dd89bd08596a28c4cf819902caa0313f3be1ad05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+bdcb6a99e853732f8ec050ae4986aa3af51d44c5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da7607dfad31e79d28f8941cdc94999c799e97db47549a3a530664fd0363c539
[INFO] running `Command { std: "docker" "start" "-a" "da7607dfad31e79d28f8941cdc94999c799e97db47549a3a530664fd0363c539", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.30
[INFO] [stderr]    Compiling ucd-trie v0.1.1
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]     Checking rpds v0.6.0
[INFO] [stderr]     Checking pest v2.1.0
[INFO] [stderr]    Compiling pest_meta v2.1.0
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking fraction-interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interpreter/ast.rs:93:19
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub func: &'a Fn (&List<Value<'a>>) -> Result<Value<'a>, RuntimeError>,
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 93 -     pub func: &'a Fn (&List<Value<'a>>) -> Result<Value<'a>, RuntimeError>,
[INFO] [stdout] 93 +     pub func: &'a dyn Fn (&List<Value<'a>>) -> Result<Value<'a>, RuntimeError>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/interpreter/parser.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | /     match assignment_type.as_rule() {
[INFO] [stdout] 32 | |         Rule::var_assign => unimplemented!(),
[INFO] [stdout] 33 | |         Rule::func_assign => unimplemented!(),
[INFO] [stdout] 34 | |         _ => unreachable!(),
[INFO] [stdout] 35 | |     };
[INFO] [stdout]    | |_____- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 36 | 
[INFO] [stdout] 37 |       unimplemented!();
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `unimplemented` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interpreter/ast.rs:93:19
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub func: &'a Fn (&List<Value<'a>>) -> Result<Value<'a>, RuntimeError>,
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 93 -     pub func: &'a Fn (&List<Value<'a>>) -> Result<Value<'a>, RuntimeError>,
[INFO] [stdout] 93 +     pub func: &'a dyn Fn (&List<Value<'a>>) -> Result<Value<'a>, RuntimeError>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/interpreter/parser.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | /     match assignment_type.as_rule() {
[INFO] [stdout] 32 | |         Rule::var_assign => unimplemented!(),
[INFO] [stdout] 33 | |         Rule::func_assign => unimplemented!(),
[INFO] [stdout] 34 | |         _ => unreachable!(),
[INFO] [stdout] 35 | |     };
[INFO] [stdout]    | |_____- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 36 | 
[INFO] [stdout] 37 |       unimplemented!();
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `unimplemented` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pair`
[INFO] [stdout]   --> src/interpreter/parser.rs:40:26
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn expression_parser<'a>(pair: Pair<Rule>) -> Result<ast::Statement<'a>, Error<Rule>> {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_pair`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pair`
[INFO] [stdout]   --> src/interpreter/parser.rs:40:26
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn expression_parser<'a>(pair: Pair<Rule>) -> Result<ast::Statement<'a>, Error<Rule>> {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_pair`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Closure<'a>` in public interface (error E0446)
[INFO] [stdout]    --> src/interpreter/ast.rs:105:14
[INFO] [stdout]     |
[INFO] [stdout] 105 |     Function(Closure<'a>),
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UndefinedVariable`
[INFO] [stdout]  --> src/interpreter/ast.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     UndefinedVariable(Name),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IncorrectNumberOfArgs`
[INFO] [stdout]   --> src/interpreter/ast.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     IncorrectNumberOfArgs(usize, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CannotCallValue`
[INFO] [stdout]   --> src/interpreter/ast.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     CannotCallValue(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unimplemented`
[INFO] [stdout]   --> src/interpreter/ast.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Unimplemented(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TypeError`
[INFO] [stdout]   --> src/interpreter/ast.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     TypeError(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `parent`
[INFO] [stdout]   --> src/interpreter/ast.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     parent: Option<Box<&'a Environment<'a>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `mappings`
[INFO] [stdout]   --> src/interpreter/ast.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     mappings: HashMap<Name, Value<'a>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/interpreter/ast.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn new(parent: Option<Box<&'a Environment<'a>>>, defines: Vec<(&Name, &Value<'a>)>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/interpreter/ast.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn get(&self, name: &Name) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `evaluate`
[INFO] [stdout]   --> src/interpreter/ast.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn evaluate(&self, expr: &'a Expression<'a>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `env`
[INFO] [stdout]   --> src/interpreter/ast.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     env: Box<&'a Environment<'a>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Closure` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/interpreter/ast.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 63 | #[derive(Clone)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `expr`
[INFO] [stdout]   --> src/interpreter/ast.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     expr: Box<&'a Expression<'a>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Closure` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/interpreter/ast.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 63 | #[derive(Clone)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `argnames`
[INFO] [stdout]   --> src/interpreter/ast.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     argnames: Vec<Name>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Closure` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/interpreter/ast.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 63 | #[derive(Clone)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `variadic`
[INFO] [stdout]   --> src/interpreter/ast.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     variadic: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Closure` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/interpreter/ast.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 63 | #[derive(Clone)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `call`
[INFO] [stdout]   --> src/interpreter/ast.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn call(&'a self, args: &'a List<Value<'a>>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Number`
[INFO] [stdout]    --> src/interpreter/ast.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     Number(Number),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/interpreter/ast.rs:98:10
[INFO] [stdout]     |
[INFO] [stdout] 98  | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Glyph`
[INFO] [stdout]    --> src/interpreter/ast.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     Glyph(char),
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/interpreter/ast.rs:98:10
[INFO] [stdout]     |
[INFO] [stdout] 98  | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `List`
[INFO] [stdout]    --> src/interpreter/ast.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     List(List<Value<'a>>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/interpreter/ast.rs:98:10
[INFO] [stdout]     |
[INFO] [stdout] 98  | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Function`
[INFO] [stdout]    --> src/interpreter/ast.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     Function(Closure<'a>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/interpreter/ast.rs:98:10
[INFO] [stdout]     |
[INFO] [stdout] 98  | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Builtin`
[INFO] [stdout]    --> src/interpreter/ast.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     Builtin(Builtin<'a>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/interpreter/ast.rs:98:10
[INFO] [stdout]     |
[INFO] [stdout] 98  | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `try_call`
[INFO] [stdout]    --> src/interpreter/ast.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 |     fn try_call(&'a self, args: &'a List<Value<'a>>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Atomic`
[INFO] [stdout]    --> src/interpreter/ast.rs:133:5
[INFO] [stdout]     |
[INFO] [stdout] 133 |     Atomic(Value<'a>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Variable`
[INFO] [stdout]    --> src/interpreter/ast.rs:134:5
[INFO] [stdout]     |
[INFO] [stdout] 134 |     Variable(Name),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Application`
[INFO] [stdout]    --> src/interpreter/ast.rs:137:5
[INFO] [stdout]     |
[INFO] [stdout] 137 |     Application(Value<'a>, List<Value<'a>>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Statement`
[INFO] [stdout]    --> src/interpreter/ast.rs:140:10
[INFO] [stdout]     |
[INFO] [stdout] 140 | pub enum Statement<'a> {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Program`
[INFO] [stdout]    --> src/interpreter/ast.rs:145:1
[INFO] [stdout]     |
[INFO] [stdout] 145 | pub type Program<'a> = List<Statement<'a>>;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Float`
[INFO] [stdout]  --> src/interpreter/data_structures.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Float(f64),
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Number` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/interpreter/data_structures.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Debug, Clone, Copy)]
[INFO] [stdout]   |          ^^^^^  ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Integer`
[INFO] [stdout]  --> src/interpreter/data_structures.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Integer(i128),
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Number` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/interpreter/data_structures.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Debug, Clone, Copy)]
[INFO] [stdout]   |          ^^^^^  ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_fraction_string`
[INFO] [stdout]  --> src/interpreter/parser.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn parse_fraction_string<'a>(file: &str) -> Result<ast::Program<'a>, Error<Rule>> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `statement_parser`
[INFO] [stdout]   --> src/interpreter/parser.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn statement_parser<'a>(pair: Pair<Rule>) -> Result<ast::Statement<'a>, Error<Rule>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `assignment_parser`
[INFO] [stdout]   --> src/interpreter/parser.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn assignment_parser<'a>(pair: Pair<Rule>) -> Result<ast::Statement<'a>, Error<Rule>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `expression_parser`
[INFO] [stdout]   --> src/interpreter/parser.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn expression_parser<'a>(pair: Pair<Rule>) -> Result<ast::Statement<'a>, Error<Rule>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add2`
[INFO] [stdout]  --> src/interpreter/builtins.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn add2<'a>(arg1: Value<'a>, arg2: &Value<'a>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add`
[INFO] [stdout]   --> src/interpreter/builtins.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn add<'a>(args: &List<Value<'a>>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ADD`
[INFO] [stdout]   --> src/interpreter/builtins.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | / const ADD: Builtin<'static> = Builtin {
[INFO] [stdout] 18 | |     func: &add,
[INFO] [stdout] 19 | | };
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 39 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Closure<'a>` in public interface (error E0446)
[INFO] [stdout]    --> src/interpreter/ast.rs:105:14
[INFO] [stdout]     |
[INFO] [stdout] 105 |     Function(Closure<'a>),
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UndefinedVariable`
[INFO] [stdout]  --> src/interpreter/ast.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     UndefinedVariable(Name),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IncorrectNumberOfArgs`
[INFO] [stdout]   --> src/interpreter/ast.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     IncorrectNumberOfArgs(usize, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CannotCallValue`
[INFO] [stdout]   --> src/interpreter/ast.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     CannotCallValue(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unimplemented`
[INFO] [stdout]   --> src/interpreter/ast.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Unimplemented(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TypeError`
[INFO] [stdout]   --> src/interpreter/ast.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     TypeError(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `parent`
[INFO] [stdout]   --> src/interpreter/ast.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     parent: Option<Box<&'a Environment<'a>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `mappings`
[INFO] [stdout]   --> src/interpreter/ast.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     mappings: HashMap<Name, Value<'a>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/interpreter/ast.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn new(parent: Option<Box<&'a Environment<'a>>>, defines: Vec<(&Name, &Value<'a>)>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/interpreter/ast.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn get(&self, name: &Name) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `evaluate`
[INFO] [stdout]   --> src/interpreter/ast.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn evaluate(&self, expr: &'a Expression<'a>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `env`
[INFO] [stdout]   --> src/interpreter/ast.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     env: Box<&'a Environment<'a>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Closure` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/interpreter/ast.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 63 | #[derive(Clone)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `expr`
[INFO] [stdout]   --> src/interpreter/ast.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     expr: Box<&'a Expression<'a>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Closure` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/interpreter/ast.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 63 | #[derive(Clone)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `argnames`
[INFO] [stdout]   --> src/interpreter/ast.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     argnames: Vec<Name>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Closure` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/interpreter/ast.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 63 | #[derive(Clone)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `variadic`
[INFO] [stdout]   --> src/interpreter/ast.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     variadic: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Closure` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/interpreter/ast.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 63 | #[derive(Clone)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `call`
[INFO] [stdout]   --> src/interpreter/ast.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn call(&'a self, args: &'a List<Value<'a>>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Number`
[INFO] [stdout]    --> src/interpreter/ast.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     Number(Number),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/interpreter/ast.rs:98:10
[INFO] [stdout]     |
[INFO] [stdout] 98  | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Glyph`
[INFO] [stdout]    --> src/interpreter/ast.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     Glyph(char),
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/interpreter/ast.rs:98:10
[INFO] [stdout]     |
[INFO] [stdout] 98  | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `List`
[INFO] [stdout]    --> src/interpreter/ast.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     List(List<Value<'a>>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/interpreter/ast.rs:98:10
[INFO] [stdout]     |
[INFO] [stdout] 98  | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Function`
[INFO] [stdout]    --> src/interpreter/ast.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     Function(Closure<'a>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/interpreter/ast.rs:98:10
[INFO] [stdout]     |
[INFO] [stdout] 98  | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Builtin`
[INFO] [stdout]    --> src/interpreter/ast.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     Builtin(Builtin<'a>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/interpreter/ast.rs:98:10
[INFO] [stdout]     |
[INFO] [stdout] 98  | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `try_call`
[INFO] [stdout]    --> src/interpreter/ast.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 |     fn try_call(&'a self, args: &'a List<Value<'a>>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Atomic`
[INFO] [stdout]    --> src/interpreter/ast.rs:133:5
[INFO] [stdout]     |
[INFO] [stdout] 133 |     Atomic(Value<'a>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Variable`
[INFO] [stdout]    --> src/interpreter/ast.rs:134:5
[INFO] [stdout]     |
[INFO] [stdout] 134 |     Variable(Name),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Application`
[INFO] [stdout]    --> src/interpreter/ast.rs:137:5
[INFO] [stdout]     |
[INFO] [stdout] 137 |     Application(Value<'a>, List<Value<'a>>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Statement`
[INFO] [stdout]    --> src/interpreter/ast.rs:140:10
[INFO] [stdout]     |
[INFO] [stdout] 140 | pub enum Statement<'a> {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Program`
[INFO] [stdout]    --> src/interpreter/ast.rs:145:1
[INFO] [stdout]     |
[INFO] [stdout] 145 | pub type Program<'a> = List<Statement<'a>>;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Float`
[INFO] [stdout]  --> src/interpreter/data_structures.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Float(f64),
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Number` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/interpreter/data_structures.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Debug, Clone, Copy)]
[INFO] [stdout]   |          ^^^^^  ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Integer`
[INFO] [stdout]  --> src/interpreter/data_structures.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Integer(i128),
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Number` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/interpreter/data_structures.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Debug, Clone, Copy)]
[INFO] [stdout]   |          ^^^^^  ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_fraction_string`
[INFO] [stdout]  --> src/interpreter/parser.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn parse_fraction_string<'a>(file: &str) -> Result<ast::Program<'a>, Error<Rule>> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `statement_parser`
[INFO] [stdout]   --> src/interpreter/parser.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn statement_parser<'a>(pair: Pair<Rule>) -> Result<ast::Statement<'a>, Error<Rule>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `assignment_parser`
[INFO] [stdout]   --> src/interpreter/parser.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn assignment_parser<'a>(pair: Pair<Rule>) -> Result<ast::Statement<'a>, Error<Rule>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `expression_parser`
[INFO] [stdout]   --> src/interpreter/parser.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn expression_parser<'a>(pair: Pair<Rule>) -> Result<ast::Statement<'a>, Error<Rule>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add2`
[INFO] [stdout]  --> src/interpreter/builtins.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn add2<'a>(arg1: Value<'a>, arg2: &Value<'a>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add`
[INFO] [stdout]   --> src/interpreter/builtins.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn add<'a>(args: &List<Value<'a>>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ADD`
[INFO] [stdout]   --> src/interpreter/builtins.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | / const ADD: Builtin<'static> = Builtin {
[INFO] [stdout] 18 | |     func: &add,
[INFO] [stdout] 19 | | };
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 39 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.69s
[INFO] running `Command { std: "docker" "inspect" "da7607dfad31e79d28f8941cdc94999c799e97db47549a3a530664fd0363c539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da7607dfad31e79d28f8941cdc94999c799e97db47549a3a530664fd0363c539", kill_on_drop: false }`
[INFO] [stdout] da7607dfad31e79d28f8941cdc94999c799e97db47549a3a530664fd0363c539