[INFO] cloning repository https://github.com/steffenhaug/skald
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/steffenhaug/skald" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteffenhaug%2Fskald", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteffenhaug%2Fskald'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6e72e3a421815b10b1f22f91ac07249dbc01c9ef
[INFO] checking steffenhaug/skald against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteffenhaug%2Fskald" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/steffenhaug/skald on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/steffenhaug/skald
[INFO] finished tweaking git repo https://github.com/steffenhaug/skald
[INFO] tweaked toml for git repo https://github.com/steffenhaug/skald written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/steffenhaug/skald already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdf3a94a766113972a32a94b60673fec9df0cedc8d543732335e485ce960574e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fdf3a94a766113972a32a94b60673fec9df0cedc8d543732335e485ce960574e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdf3a94a766113972a32a94b60673fec9df0cedc8d543732335e485ce960574e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdf3a94a766113972a32a94b60673fec9df0cedc8d543732335e485ce960574e", kill_on_drop: false }`
[INFO] [stdout] fdf3a94a766113972a32a94b60673fec9df0cedc8d543732335e485ce960574e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0cb4b5825f05d62f1f71d67112a3c7bdb4601f011657e0930560f0efa5725428
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0cb4b5825f05d62f1f71d67112a3c7bdb4601f011657e0930560f0efa5725428", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking skald v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Simple`
[INFO] [stdout]   --> src/value.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Simple(Primitive),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Function`
[INFO] [stdout]   --> src/value.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Function(Applicative),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Tuple`
[INFO] [stdout]   --> src/value.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Tuple(Vec<Value>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Boolean`
[INFO] [stdout]   --> src/value.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Boolean(bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Symbolic`
[INFO] [stdout]   --> src/value.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Symbolic(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_applicative`
[INFO] [stdout]   --> src/value.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn get_applicative(&self) -> Option<&Applicative> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Lambda`
[INFO] [stdout]   --> src/value.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | /     Lambda {
[INFO] [stdout] 57 | |         params: Vec<String>,
[INFO] [stdout] 58 | |         body: Box<Expression>,
[INFO] [stdout] 59 | |         closure: Arc<Env>
[INFO] [stdout] 60 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Primitive`
[INFO] [stdout]   --> src/value.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     Primitive(&'static (dyn Fn(&[Value]) -> EvalResult + Send + Sync))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `apply`
[INFO] [stdout]   --> src/value.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn apply(&self, args: Vec<Value>) -> EvalResult {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Undefined`
[INFO] [stdout]  --> src/error.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Undefined { identifier: String },
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NotApplicative`
[INFO] [stdout]  --> src/error.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     NotApplicative,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NumArgs`
[INFO] [stdout]  --> src/error.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     NumArgs { expected: usize, found: usize },
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TypeMismatch`
[INFO] [stdout]  --> src/error.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     TypeMismatch { argn: usize },
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UnmatchedPattern`
[INFO] [stdout]  --> src/error.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     UnmatchedPattern { found: Value },
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LexError`
[INFO] [stdout]   --> src/error.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     LexError,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EOI`
[INFO] [stdout]   --> src/error.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     EOI
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Constant`
[INFO] [stdout]   --> src/ast.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Constant(Primitive),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Variable`
[INFO] [stdout]   --> src/ast.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Variable(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TupleConstructor`
[INFO] [stdout]   --> src/ast.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     TupleConstructor(Vec<Expression>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Application`
[INFO] [stdout]   --> src/ast.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Application { fun: Box<Expression>, expr_argv: Vec<Expression> },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Abstraction`
[INFO] [stdout]   --> src/ast.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Abstraction { params: Vec<String>, body: Box<Expression> },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Match`
[INFO] [stdout]   --> src/ast.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Match { term: Box<Expression>, clauses: Vec<(Pattern, Expression)> },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eval`
[INFO] [stdout]   --> src/ast.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn eval(&self, env: &Arc<Env>) -> EvalResult {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inside`
[INFO] [stdout]   --> src/env.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn inside(outer: &Arc<Env>) -> EnvBuilder {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `global`
[INFO] [stdout]   --> src/env.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn global() -> EnvBuilder {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/env.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn get(&self, identifier: &str) -> Option<Value> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `EnvBuilder`
[INFO] [stdout]   --> src/env.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub struct EnvBuilder {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `build`
[INFO] [stdout]   --> src/env.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn build(self) -> Arc<Env> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bind`
[INFO] [stdout]   --> src/env.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn bind(mut self, bindings: Vec<(String, Value)>) -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bind_one`
[INFO] [stdout]   --> src/env.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn bind_one(mut self, sym: String, value: Value) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PConstant`
[INFO] [stdout]   --> src/pattern.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     PConstant(Value),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PVariable`
[INFO] [stdout]   --> src/pattern.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     PVariable(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PTupleConstructor`
[INFO] [stdout]   --> src/pattern.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     PTupleConstructor(Vec<Pattern>)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `matches`
[INFO] [stdout]   --> src/pattern.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn matches(&self, value: &Value) -> Option<Vec<(String, Value)>> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_bindings`
[INFO] [stdout]   --> src/pattern.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn find_bindings(&self, value: &Value, bindings: &mut Vec<(String, Value)>) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 35 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Simple`
[INFO] [stdout]   --> src/value.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Simple(Primitive),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Function`
[INFO] [stdout]   --> src/value.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Function(Applicative),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Tuple`
[INFO] [stdout]   --> src/value.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Tuple(Vec<Value>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Boolean`
[INFO] [stdout]   --> src/value.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Boolean(bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Symbolic`
[INFO] [stdout]   --> src/value.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Symbolic(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_applicative`
[INFO] [stdout]   --> src/value.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn get_applicative(&self) -> Option<&Applicative> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Lambda`
[INFO] [stdout]   --> src/value.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | /     Lambda {
[INFO] [stdout] 57 | |         params: Vec<String>,
[INFO] [stdout] 58 | |         body: Box<Expression>,
[INFO] [stdout] 59 | |         closure: Arc<Env>
[INFO] [stdout] 60 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Primitive`
[INFO] [stdout]   --> src/value.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     Primitive(&'static (dyn Fn(&[Value]) -> EvalResult + Send + Sync))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `apply`
[INFO] [stdout]   --> src/value.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn apply(&self, args: Vec<Value>) -> EvalResult {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Undefined`
[INFO] [stdout]  --> src/error.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Undefined { identifier: String },
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NotApplicative`
[INFO] [stdout]  --> src/error.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     NotApplicative,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NumArgs`
[INFO] [stdout]  --> src/error.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     NumArgs { expected: usize, found: usize },
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TypeMismatch`
[INFO] [stdout]  --> src/error.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     TypeMismatch { argn: usize },
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UnmatchedPattern`
[INFO] [stdout]  --> src/error.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     UnmatchedPattern { found: Value },
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LexError`
[INFO] [stdout]   --> src/error.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     LexError,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EOI`
[INFO] [stdout]   --> src/error.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     EOI
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Constant`
[INFO] [stdout]   --> src/ast.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Constant(Primitive),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Variable`
[INFO] [stdout]   --> src/ast.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Variable(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TupleConstructor`
[INFO] [stdout]   --> src/ast.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     TupleConstructor(Vec<Expression>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Application`
[INFO] [stdout]   --> src/ast.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Application { fun: Box<Expression>, expr_argv: Vec<Expression> },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Abstraction`
[INFO] [stdout]   --> src/ast.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Abstraction { params: Vec<String>, body: Box<Expression> },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Match`
[INFO] [stdout]   --> src/ast.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Match { term: Box<Expression>, clauses: Vec<(Pattern, Expression)> },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eval`
[INFO] [stdout]   --> src/ast.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn eval(&self, env: &Arc<Env>) -> EvalResult {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inside`
[INFO] [stdout]   --> src/env.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn inside(outer: &Arc<Env>) -> EnvBuilder {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `global`
[INFO] [stdout]   --> src/env.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn global() -> EnvBuilder {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/env.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn get(&self, identifier: &str) -> Option<Value> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `EnvBuilder`
[INFO] [stdout]   --> src/env.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub struct EnvBuilder {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `build`
[INFO] [stdout]   --> src/env.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn build(self) -> Arc<Env> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bind`
[INFO] [stdout]   --> src/env.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn bind(mut self, bindings: Vec<(String, Value)>) -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bind_one`
[INFO] [stdout]   --> src/env.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn bind_one(mut self, sym: String, value: Value) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PConstant`
[INFO] [stdout]   --> src/pattern.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     PConstant(Value),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PVariable`
[INFO] [stdout]   --> src/pattern.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     PVariable(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PTupleConstructor`
[INFO] [stdout]   --> src/pattern.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     PTupleConstructor(Vec<Pattern>)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `matches`
[INFO] [stdout]   --> src/pattern.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn matches(&self, value: &Value) -> Option<Vec<(String, Value)>> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_bindings`
[INFO] [stdout]   --> src/pattern.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn find_bindings(&self, value: &Value, bindings: &mut Vec<(String, Value)>) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 35 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.77s
[INFO] running `Command { std: "docker" "inspect" "0cb4b5825f05d62f1f71d67112a3c7bdb4601f011657e0930560f0efa5725428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cb4b5825f05d62f1f71d67112a3c7bdb4601f011657e0930560f0efa5725428", kill_on_drop: false }`
[INFO] [stdout] 0cb4b5825f05d62f1f71d67112a3c7bdb4601f011657e0930560f0efa5725428