[INFO] cloning repository https://github.com/gustavomedeiross/lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gustavomedeiross/lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgustavomedeiross%2Flang", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2cb0a31e6c4b05c974822b936153331ac1407c1a
[INFO] checking gustavomedeiross/lang against master#19dd9535408db0f1ff3d16613619076aef524d19 for pr-115950
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgustavomedeiross%2Flang" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gustavomedeiross/lang on toolchain 19dd9535408db0f1ff3d16613619076aef524d19
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+19dd9535408db0f1ff3d16613619076aef524d19" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
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[INFO] started tweaking git repo https://github.com/gustavomedeiross/lang
[INFO] finished tweaking git repo https://github.com/gustavomedeiross/lang
[INFO] tweaked toml for git repo https://github.com/gustavomedeiross/lang written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/gustavomedeiross/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" "+19dd9535408db0f1ff3d16613619076aef524d19" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] warning: variants `Var`, `Lit`, `App`, `Let`, and `Lambda` are never constructed
[INFO] [stdout]   --> src/ast.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub enum Expr<T> {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] 42 |     Var(Id, T),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 43 |     Lit(Literal, T),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 44 |     App(Box<Expr<T>>, Box<Expr<T>>),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 45 |     Let(Id, T, Box<Expr<T>>, Box<Expr<T>>),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 46 |     Lambda(Id, T, Box<Expr<T>>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `UntypedExpr` is never used
[INFO] [stdout]   --> src/ast.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub type UntypedExpr = Expr<()>;
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `TypedExpr` is never used
[INFO] [stdout]   --> src/ast.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub type TypedExpr = Expr<QualType>;
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_type` and `stringify_types` are never used
[INFO] [stdout]   --> src/ast.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | impl TypedExpr {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 53 |     pub fn get_type(self) -> QualType {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn stringify_types(self) -> Expr<String> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse` is never used
[INFO] [stdout]   --> src/parser.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn parse(input: &str) -> Result<Box<ParsedExpr>, SyntaxError> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `parse` are never used
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/lang-b0adc173803803a6/out/grammar.rs:496:16
[INFO] [stdout]     |
[INFO] [stdout] 495 |     impl ExprParser {
[INFO] [stdout]     |     --------------- associated items in this implementation
[INFO] [stdout] 496 |         pub fn new() -> ExprParser {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] ...
[INFO] [stdout] 503 |         pub fn parse<
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simplify` is never used
[INFO] [stdout]  --> src/simplifier.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn simplify(parsed_expr: ParsedExpr) -> Result<UntypedExpr, SimplifierError> {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `UnboundVariable` and `KindError` are never constructed
[INFO] [stdout]   --> src/typer.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum TypeError {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] 13 |     UnboundVariable(Id),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 14 |     KindError(KindError),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeError` 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: struct `Typer` is never constructed
[INFO] [stdout]   --> src/typer.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Typer {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/typer.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Typer {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 25 |     pub fn new(prelude: Prelude) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Prelude` is never constructed
[INFO] [stdout]   --> src/typer.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct Prelude(pub TypeClassEnv);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TypeClassEnv` is never constructed
[INFO] [stdout]   --> src/typer.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct TypeClassEnv;
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TGenState` is never constructed
[INFO] [stdout]   --> src/typer.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct TGenState(TGen);
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `initial_state` and `gen_fresh` are never used
[INFO] [stdout]   --> src/typer.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl TGenState {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 42 |     pub fn initial_state() -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn gen_fresh(&mut self, kind: Kind) -> TyVar {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Constraints` is never constructed
[INFO] [stdout]   --> src/typer.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct Constraints(Vec<(QualType, QualType)>);
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `empty` is never used
[INFO] [stdout]   --> src/typer.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | impl Constraints {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 57 |     fn empty() -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `type_check`, `infer`, `infer_lit`, `dont_generalize`, `instantiate`, and `unify` are never used
[INFO] [stdout]    --> src/typer.rs:63:12
[INFO] [stdout]     |
[INFO] [stdout] 62  | impl Typer {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout] 63  |     pub fn type_check(&mut self, expr: UntypedExpr) -> Result<TypedExpr, TypeError> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72  |     fn infer(&mut self, expr: UntypedExpr) -> Result<(TypedExpr, Constraints), TypeError> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     fn infer_lit(&mut self, lit: Literal) -> (TypedExpr, Constraints) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |     fn dont_generalize(qual_type: QualType) -> Scheme {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |     fn instantiate(&mut self, scheme: Scheme) -> Result<QualType, TypeError> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     fn unify(&mut self, _constraints: Constraints) -> Subst {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KFun` is never constructed
[INFO] [stdout]  --> src/types.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Kind {
[INFO] [stdout]   |          ---- variant in this enum
[INFO] [stdout] 6 |     Star,
[INFO] [stdout] 7 |     KFun(Box<Kind>, Box<Kind>),
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Kind` 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: variants `Var`, `Con`, `Arrow`, and `Gen` are never constructed
[INFO] [stdout]   --> src/types.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub enum Type {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] 44 |     Var(TyVar),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 45 |     Con(TyCon),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     Arrow(Box<Type>, Box<Type>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     Gen(TGen),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Type` 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: associated items `initial`, `next`, and `to_tyvar` are never used
[INFO] [stdout]    --> src/types.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 122 | impl TGen {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 123 |     pub fn initial() -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub fn next(self) -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |     pub fn to_tyvar(&self, kind: Kind) -> TyVar {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_int` is never used
[INFO] [stdout]    --> src/types.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 139 | impl TyVar {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] 140 |     pub fn from_int(int: usize, kind: Kind) -> Self {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `ty` is never used
[INFO] [stdout]    --> src/types.rs:182:12
[INFO] [stdout]     |
[INFO] [stdout] 181 | impl QualType {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] 182 |     pub fn ty(self) -> Type {
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `preds` are never used
[INFO] [stdout]    --> src/types.rs:197:12
[INFO] [stdout]     |
[INFO] [stdout] 196 | impl<T> Qual<T> {
[INFO] [stdout]     | --------------- associated items in this implementation
[INFO] [stdout] 197 |     pub fn new(preds: Vec<Pred>, t: T) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 201 |     pub fn preds(self) -> Vec<Pred> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/types.rs:228:12
[INFO] [stdout]     |
[INFO] [stdout] 227 | impl Pred {
[INFO] [stdout]     | --------- associated function in this implementation
[INFO] [stdout] 228 |     pub fn new(id: Id, ty: Type) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `t_char` is never used
[INFO] [stdout]    --> src/types.rs:278:12
[INFO] [stdout]     |
[INFO] [stdout] 278 |     pub fn t_char() -> Type {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `t_list` is never used
[INFO] [stdout]    --> src/types.rs:282:12
[INFO] [stdout]     |
[INFO] [stdout] 282 |     pub fn t_list() -> Type {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `list` is never used
[INFO] [stdout]    --> src/types.rs:289:8
[INFO] [stdout]     |
[INFO] [stdout] 289 |     fn list(t: Type) -> Type {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `t_string` is never used
[INFO] [stdout]    --> src/types.rs:293:12
[INFO] [stdout]     |
[INFO] [stdout] 293 |     pub fn t_string() -> Type {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `qual_type`
[INFO] [stdout]    --> src/typer.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |         let qual_type = "t0 -> t0".to_owned();
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_qual_type`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `type_class_env` is never read
[INFO] [stdout]   --> src/typer.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Typer {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 21 |     type_class_env: TypeClassEnv,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Gen` is never constructed
[INFO] [stdout]   --> src/types.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub enum Type {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 52 |     Gen(TGen),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Type` 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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.42s
[INFO] running `Command { std: "docker" "inspect" "bab62b4a0d6dfb19dd5e0398bdee0fc89bae8f42d5c16eca4a0f7b8aa0160a5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bab62b4a0d6dfb19dd5e0398bdee0fc89bae8f42d5c16eca4a0f7b8aa0160a5b", kill_on_drop: false }`
[INFO] [stdout] bab62b4a0d6dfb19dd5e0398bdee0fc89bae8f42d5c16eca4a0f7b8aa0160a5b