[INFO] cloning repository https://github.com/alekratz/file-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alekratz/file-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falekratz%2Ffile-lang", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e07753049d39882ee6e9715867c02e3ff86bbdd
[INFO] checking alekratz/file-lang against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falekratz%2Ffile-lang" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/alekratz/file-lang
[INFO] finished tweaking git repo https://github.com/alekratz/file-lang
[INFO] tweaked toml for git repo https://github.com/alekratz/file-lang written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/alekratz/file-lang on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/alekratz/file-lang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Checking file-lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::util::TypeMap`
[INFO] [stdout]  --> src/common/mod.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub use super::util::TypeMap;
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::util::*`
[INFO] [stdout]   --> src/common/mod.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub use super::util::*;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::common::*`
[INFO] [stdout]   --> src/syn/mod.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub use super::common::*;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `STRING_CHARS` and `STRING_ESCAPE_CHAR`
[INFO] [stdout]   --> src/syn/mod.rs:21:21
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub use super::{STRING_CHARS, STRING_ESCAPE_CHAR};
[INFO] [stdout]    |                     ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `vm::fun::*`
[INFO] [stdout]  --> src/compile/constant.rs:1:35
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{compile::builtins::*, vm::fun::*};
[INFO] [stdout]   |                                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fun::*`
[INFO] [stdout]  --> src/compile/translate/constant.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 |     vm::{fun::*, object::*, value::*},
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::prelude::*`
[INFO] [stdout]  --> src/vm/state.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     common::prelude::*,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/vm/state.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::util::TypeMap`
[INFO] [stdout]  --> src/common/mod.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub use super::util::TypeMap;
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::util::*`
[INFO] [stdout]   --> src/common/mod.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub use super::util::*;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::common::*`
[INFO] [stdout]   --> src/syn/mod.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub use super::common::*;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `STRING_CHARS` and `STRING_ESCAPE_CHAR`
[INFO] [stdout]   --> src/syn/mod.rs:21:21
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub use super::{STRING_CHARS, STRING_ESCAPE_CHAR};
[INFO] [stdout]    |                     ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `vm::fun::*`
[INFO] [stdout]  --> src/compile/constant.rs:1:35
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{compile::builtins::*, vm::fun::*};
[INFO] [stdout]   |                                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fun::*`
[INFO] [stdout]  --> src/compile/translate/constant.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 |     vm::{fun::*, object::*, value::*},
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::prelude::*`
[INFO] [stdout]  --> src/vm/state.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     common::prelude::*,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/vm/state.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/vm/state.rs:44:52
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn call_user_fun(&mut self, fun: &UserFun, args: Vec<Value>) {
[INFO] [stdout]    |                                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `len` is never used
[INFO] [stdout]   --> src/common/span.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | impl Span {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Bound` is never used
[INFO] [stdout]   --> src/common/binding.rs:19:11
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait Bound {
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TypeMap` is never constructed
[INFO] [stdout]  --> src/common/util.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct TypeMap<V: Hash> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert`, and `get` are never used
[INFO] [stdout]   --> src/common/util.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<V: Hash> TypeMap<V> {
[INFO] [stdout]    | ------------------------ associated items in this implementation
[INFO] [stdout] 16 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn insert<K: 'static>(&mut self, value: V) -> Option<V> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn get<K: 'static>(&self) -> Option<&V> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `binary_binding_name` and `unary_binding_name` are never used
[INFO] [stdout]    --> src/syn/ast.rs:313:12
[INFO] [stdout]     |
[INFO] [stdout] 312 | impl Op {
[INFO] [stdout]     | ------- methods in this implementation
[INFO] [stdout] 313 |     pub fn binary_binding_name(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 317 |     pub fn unary_binding_name(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Unexpected` is never constructed
[INFO] [stdout]   --> src/syn/error.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub enum SyntaxError {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 14 |     Unexpected { span: Span, what: String },
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SyntaxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `text` is never used
[INFO] [stdout]   --> src/syn/lexer.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 61 | impl<'text> Lexer<'text> {
[INFO] [stdout]    | ------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 97 |     pub fn text(&self) -> &'text str {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `parse_ops`, `curr_text`, and `text` are never used
[INFO] [stdout]   --> src/syn/parser.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl<'text> Parser<'text> {
[INFO] [stdout]    | ------------------------- associated items in this implementation
[INFO] [stdout] 11 |     pub fn parse_ops(text: &str) -> Result<Op> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn curr_text(&self) -> &'text str {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn text(&self) -> &'text str {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Builtins` is never constructed
[INFO] [stdout]   --> src/compile/builtins.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Builtins {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/compile/builtins.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Builtins {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] 26 |     pub fn un_ops(&self) -> &HashMap<OpList, Binding> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn insert_un_op(&mut self, op: OpList, binding: Binding) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn bin_ops(&self) -> &HashMap<OpList, Binding> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn insert_bin_op(&mut self, op: OpList, binding: Binding) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn functions(&self) -> &HashMap<Binding, BuiltinFun> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn insert_function(&mut self, binding: Binding, fun: BuiltinFun) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn types(&self) -> &HashMap<Binding, BuiltinType> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn insert_type<O: 'static + Object>(&mut self, binding: Binding, ty: BuiltinType) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub fn get_type<O: 'static + Object>(&self) -> Option<&BuiltinType> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `REPR` is never used
[INFO] [stdout]   --> src/compile/builtins.rs:98:11
[INFO] [stdout]    |
[INFO] [stdout] 98 | pub const REPR: &str = "__repr__";
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `text` is never read
[INFO] [stdout]  --> src/compile/context/ir.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct IrCtx<'t> {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 9 |     text: &'t str,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `IrCtx` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_constant` and `text` are never used
[INFO] [stdout]   --> src/compile/context/ir.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl<'t> IrCtx<'t> {
[INFO] [stdout]    | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn get_constant(&self, value_ref: ValueRef) -> &ConstValue {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub fn text(&self) -> &'t str {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `binding` and `bindings` are never read
[INFO] [stdout]  --> src/compile/ir.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct TypeDef {
[INFO] [stdout]   |            ------- fields in this struct
[INFO] [stdout] 5 |     pub span: Span,
[INFO] [stdout] 6 |     pub binding: Binding,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 7 |     pub bindings: Bindings,
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TypeDef` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `params`, `binding`, `bindings`, and `body` are never read
[INFO] [stdout]   --> src/compile/ir.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct FunDef {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 12 |     pub span: Span,
[INFO] [stdout] 13 |     pub params: Vec<Binding>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 14 |     pub binding: Binding,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 15 |     pub bindings: Bindings,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 16 |     pub body: Vec<Stmt>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FunDef` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/compile/ir.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Ident(Span, Binding),
[INFO] [stdout]    |     ----- ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LValue` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 41 -     Ident(Span, Binding),
[INFO] [stdout] 41 +     Ident((), Binding),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `tag` and `string` are never read
[INFO] [stdout]   --> src/compile/ir.rs:94:20
[INFO] [stdout]    |
[INFO] [stdout] 94 |     TaggedString { tag: String, string: String },
[INFO] [stdout]    |     ------------   ^^^          ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AtomKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `condition` and `body_true` are never read
[INFO] [stdout]    --> src/compile/ir.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub struct Branch {
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] 107 |     pub span: Span,
[INFO] [stdout] 108 |     pub condition: Expr,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 109 |     pub body_true: Vec<Stmt>,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Branch` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `condition` and `body` are never read
[INFO] [stdout]    --> src/compile/ir.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub struct Loop {
[INFO] [stdout]     |            ---- fields in this struct
[INFO] [stdout] 115 |     pub span: Span,
[INFO] [stdout] 116 |     pub condition: Option<Expr>,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 117 |     pub body: Vec<Stmt>,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Loop` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `translate_type` and `translate_fun` are never used
[INFO] [stdout]   --> src/compile/translate/ir.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl<'t, 'ctx> IrToInst<'t, 'ctx> {
[INFO] [stdout]    | --------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 62 |     fn translate_type(&mut self, _type_def: &TypeDef) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     fn translate_fun(&mut self, fun_def: &FunDef) -> UserFun {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `main_function_ref`, `constants`, and `main_function` are never used
[INFO] [stdout]   --> src/vm/artifact.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Artifact {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn main_function_ref(&self) -> ValueRef {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn constants(&self) -> &Vec<ObjectValue> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn main_function(&self) -> &dyn Object {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Partial` is never constructed
[INFO] [stdout]   --> src/vm/fun.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum Fun {
[INFO] [stdout]    |          --- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 17 |     Partial(Vec<Value>, ValueRef),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Fun` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `binding` and `arity` are never read
[INFO] [stdout]   --> src/vm/fun.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct UserFun {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 22 |     binding: Binding,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     arity: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UserFun` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `binding` and `arity` are never used
[INFO] [stdout]   --> src/vm/fun.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl UserFun {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn binding(&self) -> Binding {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub fn arity(&self) -> usize {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BuiltinFun` is never constructed
[INFO] [stdout]    --> src/vm/fun.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub struct BuiltinFun {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `fun`, and `binding` are never used
[INFO] [stdout]    --> src/vm/fun.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 107 | impl BuiltinFun {
[INFO] [stdout]     | --------------- associated items in this implementation
[INFO] [stdout] 108 |     pub fn new(binding: Binding, fun: BuiltinFunPtr) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     pub fn fun(&self) -> &BuiltinFunPtr {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |     pub fn binding(&self) -> Binding {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `members` is never used
[INFO] [stdout]   --> src/vm/object/mod.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub trait Object: Debug {
[INFO] [stdout]    |           ------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 18 |     fn members(&self) -> &ObjectMembers;
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `base` is never read
[INFO] [stdout]   --> src/vm/stack_frame.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct StackFrame {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout]  9 |     /// The stack size before this frame was created.
[INFO] [stdout] 10 |     pub base: usize,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `StackFrame` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `constants_end` is never read
[INFO] [stdout]   --> src/vm/storage.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Storage {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     constants_end: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `stack_frame`, `stack_frames`, `return_register`, `unset_return_register`, and `free` are never used
[INFO] [stdout]    --> src/vm/storage.rs:42:12
[INFO] [stdout]     |
[INFO] [stdout]  28 | impl Storage {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  42 |     pub fn stack_frame(&self) -> &StackFrame {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  50 |     pub fn stack_frames(&self) -> &Vec<StackFrame> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  62 |     pub fn return_register(&self) -> Option<Value> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  70 |     pub fn unset_return_register(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     pub fn free(&mut self, value_ref: ValueRef) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/vm/object/string.rs:30:19
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn string(&self) -> Cow<String> {
[INFO] [stdout]    |                   ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn string(&self) -> Cow<'_, String> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/vm/state.rs:44:52
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn call_user_fun(&mut self, fun: &UserFun, args: Vec<Value>) {
[INFO] [stdout]    |                                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `len` is never used
[INFO] [stdout]   --> src/common/span.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | impl Span {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Bound` is never used
[INFO] [stdout]   --> src/common/binding.rs:19:11
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait Bound {
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TypeMap` is never constructed
[INFO] [stdout]  --> src/common/util.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct TypeMap<V: Hash> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert`, and `get` are never used
[INFO] [stdout]   --> src/common/util.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<V: Hash> TypeMap<V> {
[INFO] [stdout]    | ------------------------ associated items in this implementation
[INFO] [stdout] 16 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn insert<K: 'static>(&mut self, value: V) -> Option<V> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn get<K: 'static>(&self) -> Option<&V> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `binary_binding_name` and `unary_binding_name` are never used
[INFO] [stdout]    --> src/syn/ast.rs:313:12
[INFO] [stdout]     |
[INFO] [stdout] 312 | impl Op {
[INFO] [stdout]     | ------- methods in this implementation
[INFO] [stdout] 313 |     pub fn binary_binding_name(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 317 |     pub fn unary_binding_name(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Unexpected` is never constructed
[INFO] [stdout]   --> src/syn/error.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub enum SyntaxError {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 14 |     Unexpected { span: Span, what: String },
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SyntaxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `text` is never used
[INFO] [stdout]   --> src/syn/lexer.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 61 | impl<'text> Lexer<'text> {
[INFO] [stdout]    | ------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 97 |     pub fn text(&self) -> &'text str {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `parse_ops`, `curr_text`, and `text` are never used
[INFO] [stdout]   --> src/syn/parser.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl<'text> Parser<'text> {
[INFO] [stdout]    | ------------------------- associated items in this implementation
[INFO] [stdout] 11 |     pub fn parse_ops(text: &str) -> Result<Op> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn curr_text(&self) -> &'text str {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn text(&self) -> &'text str {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Builtins` is never constructed
[INFO] [stdout]   --> src/compile/builtins.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Builtins {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/compile/builtins.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Builtins {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] 26 |     pub fn un_ops(&self) -> &HashMap<OpList, Binding> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn insert_un_op(&mut self, op: OpList, binding: Binding) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn bin_ops(&self) -> &HashMap<OpList, Binding> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn insert_bin_op(&mut self, op: OpList, binding: Binding) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn functions(&self) -> &HashMap<Binding, BuiltinFun> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn insert_function(&mut self, binding: Binding, fun: BuiltinFun) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn types(&self) -> &HashMap<Binding, BuiltinType> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn insert_type<O: 'static + Object>(&mut self, binding: Binding, ty: BuiltinType) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub fn get_type<O: 'static + Object>(&self) -> Option<&BuiltinType> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `REPR` is never used
[INFO] [stdout]   --> src/compile/builtins.rs:98:11
[INFO] [stdout]    |
[INFO] [stdout] 98 | pub const REPR: &str = "__repr__";
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `text` is never read
[INFO] [stdout]  --> src/compile/context/ir.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct IrCtx<'t> {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 9 |     text: &'t str,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `IrCtx` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_constant` and `text` are never used
[INFO] [stdout]   --> src/compile/context/ir.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl<'t> IrCtx<'t> {
[INFO] [stdout]    | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn get_constant(&self, value_ref: ValueRef) -> &ConstValue {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub fn text(&self) -> &'t str {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `binding` and `bindings` are never read
[INFO] [stdout]  --> src/compile/ir.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct TypeDef {
[INFO] [stdout]   |            ------- fields in this struct
[INFO] [stdout] 5 |     pub span: Span,
[INFO] [stdout] 6 |     pub binding: Binding,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 7 |     pub bindings: Bindings,
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TypeDef` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `params`, `binding`, `bindings`, and `body` are never read
[INFO] [stdout]   --> src/compile/ir.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct FunDef {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 12 |     pub span: Span,
[INFO] [stdout] 13 |     pub params: Vec<Binding>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 14 |     pub binding: Binding,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 15 |     pub bindings: Bindings,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 16 |     pub body: Vec<Stmt>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FunDef` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/compile/ir.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Ident(Span, Binding),
[INFO] [stdout]    |     ----- ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LValue` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 41 -     Ident(Span, Binding),
[INFO] [stdout] 41 +     Ident((), Binding),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `tag` and `string` are never read
[INFO] [stdout]   --> src/compile/ir.rs:94:20
[INFO] [stdout]    |
[INFO] [stdout] 94 |     TaggedString { tag: String, string: String },
[INFO] [stdout]    |     ------------   ^^^          ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AtomKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `condition` and `body_true` are never read
[INFO] [stdout]    --> src/compile/ir.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub struct Branch {
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] 107 |     pub span: Span,
[INFO] [stdout] 108 |     pub condition: Expr,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 109 |     pub body_true: Vec<Stmt>,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Branch` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `condition` and `body` are never read
[INFO] [stdout]    --> src/compile/ir.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub struct Loop {
[INFO] [stdout]     |            ---- fields in this struct
[INFO] [stdout] 115 |     pub span: Span,
[INFO] [stdout] 116 |     pub condition: Option<Expr>,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 117 |     pub body: Vec<Stmt>,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Loop` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `translate_type` and `translate_fun` are never used
[INFO] [stdout]   --> src/compile/translate/ir.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl<'t, 'ctx> IrToInst<'t, 'ctx> {
[INFO] [stdout]    | --------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 62 |     fn translate_type(&mut self, _type_def: &TypeDef) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     fn translate_fun(&mut self, fun_def: &FunDef) -> UserFun {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `main_function_ref`, `constants`, and `main_function` are never used
[INFO] [stdout]   --> src/vm/artifact.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Artifact {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn main_function_ref(&self) -> ValueRef {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn constants(&self) -> &Vec<ObjectValue> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn main_function(&self) -> &dyn Object {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Partial` is never constructed
[INFO] [stdout]   --> src/vm/fun.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum Fun {
[INFO] [stdout]    |          --- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 17 |     Partial(Vec<Value>, ValueRef),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Fun` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `binding` and `arity` are never read
[INFO] [stdout]   --> src/vm/fun.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct UserFun {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 22 |     binding: Binding,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     arity: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UserFun` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `binding` and `arity` are never used
[INFO] [stdout]   --> src/vm/fun.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl UserFun {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn binding(&self) -> Binding {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub fn arity(&self) -> usize {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BuiltinFun` is never constructed
[INFO] [stdout]    --> src/vm/fun.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub struct BuiltinFun {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `fun`, and `binding` are never used
[INFO] [stdout]    --> src/vm/fun.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 107 | impl BuiltinFun {
[INFO] [stdout]     | --------------- associated items in this implementation
[INFO] [stdout] 108 |     pub fn new(binding: Binding, fun: BuiltinFunPtr) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     pub fn fun(&self) -> &BuiltinFunPtr {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |     pub fn binding(&self) -> Binding {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `members` is never used
[INFO] [stdout]   --> src/vm/object/mod.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub trait Object: Debug {
[INFO] [stdout]    |           ------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 18 |     fn members(&self) -> &ObjectMembers;
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `base` is never read
[INFO] [stdout]   --> src/vm/stack_frame.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct StackFrame {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout]  9 |     /// The stack size before this frame was created.
[INFO] [stdout] 10 |     pub base: usize,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `StackFrame` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `constants_end` is never read
[INFO] [stdout]   --> src/vm/storage.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Storage {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     constants_end: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `stack_frame`, `stack_frames`, `return_register`, `unset_return_register`, and `free` are never used
[INFO] [stdout]    --> src/vm/storage.rs:42:12
[INFO] [stdout]     |
[INFO] [stdout]  28 | impl Storage {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  42 |     pub fn stack_frame(&self) -> &StackFrame {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  50 |     pub fn stack_frames(&self) -> &Vec<StackFrame> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  62 |     pub fn return_register(&self) -> Option<Value> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  70 |     pub fn unset_return_register(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     pub fn free(&mut self, value_ref: ValueRef) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/vm/object/string.rs:30:19
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn string(&self) -> Cow<String> {
[INFO] [stdout]    |                   ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn string(&self) -> Cow<'_, String> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.47s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.12.15
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "71cdc4ff9c3ca4332fa502eccdff8454829c9176bdbfd3e3374de2810b9bbd2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71cdc4ff9c3ca4332fa502eccdff8454829c9176bdbfd3e3374de2810b9bbd2b", kill_on_drop: false }`
[INFO] [stdout] 71cdc4ff9c3ca4332fa502eccdff8454829c9176bdbfd3e3374de2810b9bbd2b
