[INFO] cloning repository https://github.com/Industrial/lattice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Industrial/lattice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIndustrial%2Flattice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIndustrial%2Flattice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6b9030bd16cb942f27729922b7ca65a8a65ceeeb
[INFO] checking Industrial/lattice against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIndustrial%2Flattice" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/Industrial/lattice
[INFO] finished tweaking git repo https://github.com/Industrial/lattice
[INFO] tweaked toml for git repo https://github.com/Industrial/lattice written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Industrial/lattice on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Industrial/lattice 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d8c70768e839ef516173ac1445ef10b97a31554f90fd26b8a0baeac38f8c016
[INFO] running `Command { std: "docker" "start" "-a" "6d8c70768e839ef516173ac1445ef10b97a31554f90fd26b8a0baeac38f8c016", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d8c70768e839ef516173ac1445ef10b97a31554f90fd26b8a0baeac38f8c016", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d8c70768e839ef516173ac1445ef10b97a31554f90fd26b8a0baeac38f8c016", kill_on_drop: false }`
[INFO] [stdout] 6d8c70768e839ef516173ac1445ef10b97a31554f90fd26b8a0baeac38f8c016
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47cede3fc34351bf58a807bdf0698ab40a92bfc486e457d764d7489e74a9d8dd
[INFO] running `Command { std: "docker" "start" "-a" "47cede3fc34351bf58a807bdf0698ab40a92bfc486e457d764d7489e74a9d8dd", kill_on_drop: false }`
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[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]     Checking rustc_version v0.4.1
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[INFO] [stderr]     Checking gimli v0.28.1
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[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]     Checking lattice-stdlib v0.1.0 (/opt/rustwide/workdir/packages/stdlib)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> packages/stdlib/src/lib.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 |   use super::*;
[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::*`
[INFO] [stdout]    --> packages/stdlib/src/lib.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> packages/stdlib/src/lib.rs:253:9
[INFO] [stdout]     |
[INFO] [stdout] 253 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TEST_BOOL_VALUE` is never used
[INFO] [stdout]   --> packages/stdlib/src/lib.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub const TEST_BOOL_VALUE: bool = true;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TEST_STRING_VALUE` is never used
[INFO] [stdout]   --> packages/stdlib/src/lib.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub const TEST_STRING_VALUE: &str = "test";
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TEST_NUMBER_VALUE` is never used
[INFO] [stdout]   --> packages/stdlib/src/lib.rs:15:15
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub const TEST_NUMBER_VALUE: i32 = 42;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking toml v0.8.23
[INFO] [stderr]     Checking lattice-pm v0.1.0 (/opt/rustwide/workdir/packages/pm)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> packages/pm/src/lib.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 |   use super::*;
[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::*`
[INFO] [stdout]   --> packages/pm/src/lib.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> packages/pm/src/lib.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TEST_PACKAGE_NAME` is never used
[INFO] [stdout]   --> packages/pm/src/lib.rs:45:15
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub const TEST_PACKAGE_NAME: &str = "test-package";
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TEST_PACKAGE_VERSION` is never used
[INFO] [stdout]   --> packages/pm/src/lib.rs:46:15
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub const TEST_PACKAGE_VERSION: &str = "0.1.0";
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking wasmtime-types v14.0.4
[INFO] [stderr]     Checking wasmtime-jit-debug v14.0.4
[INFO] [stderr]     Checking wasmtime-environ v14.0.4
[INFO] [stderr]     Checking wasmtime-jit v14.0.4
[INFO] [stderr]     Checking cranelift-frontend v0.101.4
[INFO] [stderr]     Checking cranelift-native v0.101.4
[INFO] [stderr]     Checking wasmtime-cranelift-shared v14.0.4
[INFO] [stderr]     Checking cranelift-wasm v0.101.4
[INFO] [stderr]     Checking wasmtime-cranelift v14.0.4
[INFO] [stderr]     Checking wasmtime v14.0.4
[INFO] [stderr]     Checking lattice-compiler v0.1.0 (/opt/rustwide/workdir/packages/compiler)
[INFO] [stdout] warning: unused imports: `PrimitiveType` and `ProductType`
[INFO] [stdout]  --> packages/compiler/src/typechecker/annotator.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::types::types::{PrimitiveType, ProductType, SumType, Type};
[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: `PrimitiveType`
[INFO] [stdout]  --> packages/compiler/src/types/exhaustiveness.rs:6:20
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::types::{PrimitiveType, Type};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TokenKind`
[INFO] [stdout]    --> packages/compiler/src/ir/nodes.rs:990:38
[INFO] [stdout]     |
[INFO] [stdout] 990 |   use crate::lexer::{SourceLocation, TokenKind};
[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: `Literal`
[INFO] [stdout]     --> packages/compiler/src/parser/visitor.rs:1475:61
[INFO] [stdout]      |
[INFO] [stdout] 1475 |   use crate::parser::ast::{AstNode, Expression, Identifier, Literal, Span, Statement};
[INFO] [stdout]      |                                                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ProductType`
[INFO] [stdout]  --> packages/compiler/src/typechecker/annotator.rs:7:42
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::types::types::{PrimitiveType, ProductType, SumType, Type};
[INFO] [stdout]   |                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TypeVariable`
[INFO] [stdout]   --> packages/compiler/src/types/pattern_matching_tests.rs:10:41
[INFO] [stdout]    |
[INFO] [stdout] 10 | use super::types::{PrimitiveType, Type, TypeVariable};
[INFO] [stdout]    |                                         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> packages/compiler/src/lib.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 |   use super::*;
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> packages/compiler/src/lib.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> packages/compiler/src/lexer/errors.rs:396:26
[INFO] [stdout]     |
[INFO] [stdout] 396 |     assert_eq!(error_ref.description(), "Invalid character");
[INFO] [stdout]     |                          ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> packages/compiler/src/lexer/errors.rs:441:28
[INFO] [stdout]     |
[INFO] [stdout] 441 |       assert_eq!(error_ref.description(), expected_description);
[INFO] [stdout]     |                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> packages/compiler/src/lexer/errors.rs:795:35
[INFO] [stdout]     |
[INFO] [stdout] 795 |       let description = error_ref.description();
[INFO] [stdout]     |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]    --> packages/compiler/src/lexer/tokens.rs:105:10
[INFO] [stdout]     |
[INFO] [stdout] 105 |   fn new(context: Self::Context, range: std::ops::Range<Self::Offset>) -> Self {
[INFO] [stdout]     |          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> packages/compiler/src/parser/ast.rs:460:7
[INFO] [stdout]     |
[INFO] [stdout] 460 |       _ => todo!(),
[INFO] [stdout]     |       ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> packages/compiler/src/parser/ast.rs:460:7
[INFO] [stdout]     |
[INFO] [stdout] 447 |       Expression::Literal { span, .. } => *span,
[INFO] [stdout]     |       -------------------------------- matches some of the same values
[INFO] [stdout] 448 |       Expression::Variable { span, .. } => *span,
[INFO] [stdout]     |       --------------------------------- matches some of the same values
[INFO] [stdout] 449 |       Expression::Application { span, .. } => *span,
[INFO] [stdout]     |       ------------------------------------ matches some of the same values
[INFO] [stdout] 450 |       Expression::BinaryOp { span, .. } => *span,
[INFO] [stdout]     |       --------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 460 |       _ => todo!(),
[INFO] [stdout]     |       ^ ...and 9 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> packages/compiler/src/parser/ast.rs:981:7
[INFO] [stdout]     |
[INFO] [stdout] 981 |       _ => todo!(),
[INFO] [stdout]     |       ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> packages/compiler/src/parser/ast.rs:981:7
[INFO] [stdout]     |
[INFO] [stdout] 976 |       Statement::Expression { span, .. } => *span,
[INFO] [stdout]     |       ---------------------------------- matches some of the same values
[INFO] [stdout] 977 |       Statement::Let { span, .. } => *span,
[INFO] [stdout]     |       --------------------------- matches some of the same values
[INFO] [stdout] 978 |       Statement::Type { span, .. } => *span,
[INFO] [stdout]     |       ---------------------------- matches some of the same values
[INFO] [stdout] 979 |       Statement::Effect { span, .. } => *span,
[INFO] [stdout]     |       ------------------------------ matches some of the same values
[INFO] [stdout] 980 |       Statement::Function { span, .. } => *span,
[INFO] [stdout] 981 |       _ => todo!(),
[INFO] [stdout]     |       ^ ...and 1 other patterns collectively make this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> packages/compiler/src/parser/ast.rs:982:7
[INFO] [stdout]     |
[INFO] [stdout] 982 |       _ => todo!(),
[INFO] [stdout]     |       ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> packages/compiler/src/parser/ast.rs:982:7
[INFO] [stdout]     |
[INFO] [stdout] 976 |       Statement::Expression { span, .. } => *span,
[INFO] [stdout]     |       ---------------------------------- matches some of the same values
[INFO] [stdout] 977 |       Statement::Let { span, .. } => *span,
[INFO] [stdout]     |       --------------------------- matches some of the same values
[INFO] [stdout] 978 |       Statement::Type { span, .. } => *span,
[INFO] [stdout]     |       ---------------------------- matches some of the same values
[INFO] [stdout] 979 |       Statement::Effect { span, .. } => *span,
[INFO] [stdout]     |       ------------------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 982 |       _ => todo!(),
[INFO] [stdout]     |       ^ ...and 1 other patterns collectively make this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> packages/compiler/src/parser/parser.rs:659:26
[INFO] [stdout]     |
[INFO] [stdout] 659 |             .map(|(name, args)| TypeExpr::Constructor {
[INFO] [stdout]     |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> packages/compiler/src/parser/mod.rs:100:7
[INFO] [stdout]     |
[INFO] [stdout] 100 |   let mut parser = Parser::new();
[INFO] [stdout]     |       ----^^^^^^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> packages/compiler/src/parser/mod.rs:122:7
[INFO] [stdout]     |
[INFO] [stdout] 122 |   let mut parser = Parser::new();
[INFO] [stdout]     |       ----^^^^^^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> packages/compiler/src/typechecker/annotator.rs:128:17
[INFO] [stdout]     |
[INFO] [stdout] 128 |       .map_err(|e| TypeCheckError::TypeMismatch {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> packages/compiler/src/typechecker/annotator.rs:169:74
[INFO] [stdout]     |
[INFO] [stdout] 169 |       let subst = self.inference.unify(&unified_type, arm_type).map_err(|e| {
[INFO] [stdout]     |                                                                          ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> packages/compiler/src/types/desugaring.rs:257:32
[INFO] [stdout]     |
[INFO] [stdout] 257 |   pub fn apply_bindings(&self, mut expr: SimpleExpression) -> SimpleExpression {
[INFO] [stdout]     |                                ----^^^^
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TokenFilter` is never constructed
[INFO] [stdout]   --> packages/compiler/src/lexer/traits.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub struct TokenFilter<I> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `should_include` are never used
[INFO] [stdout]    --> packages/compiler/src/lexer/traits.rs:106:10
[INFO] [stdout]     |
[INFO] [stdout] 101 | / impl<I> TokenFilter<I>
[INFO] [stdout] 102 | | where
[INFO] [stdout] 103 | |   I: Iterator<Item = Result<Token, LexerError>>,
[INFO] [stdout]     | |________________________________________________- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn new(inner: I, include_comments: bool, include_whitespace: bool) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 115 |     fn should_include(&self, token: &Token) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RecoveryStrategy` is never used
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:274:10
[INFO] [stdout]     |
[INFO] [stdout] 274 | pub enum RecoveryStrategy {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `description` is never used
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:297:10
[INFO] [stdout]     |
[INFO] [stdout] 295 | impl RecoveryStrategy {
[INFO] [stdout]     | --------------------- method in this implementation
[INFO] [stdout] 296 |   /// Get a description of the recovery strategy
[INFO] [stdout] 297 |   pub fn description(&self) -> &'static str {
[INFO] [stdout]     |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ErrorRecoveryContext` is never constructed
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:314:12
[INFO] [stdout]     |
[INFO] [stdout] 314 | pub struct ErrorRecoveryContext {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `mark_successful`, and `with_context` are never used
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:327:10
[INFO] [stdout]     |
[INFO] [stdout] 325 | impl ErrorRecoveryContext {
[INFO] [stdout]     | ------------------------- associated items in this implementation
[INFO] [stdout] 326 |   /// Create a new error recovery context
[INFO] [stdout] 327 |   pub fn new(strategy: RecoveryStrategy) -> Self {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 337 |   pub fn mark_successful(&mut self) {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 342 |   pub fn with_context(mut self, context: String) -> Self {
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ErrorReporter` is never constructed
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:349:12
[INFO] [stdout]     |
[INFO] [stdout] 349 | pub struct ErrorReporter {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `with_file_name`, `report_error`, `report_errors`, and `generate_summary` are never used
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:358:10
[INFO] [stdout]     |
[INFO] [stdout] 356 | impl ErrorReporter {
[INFO] [stdout]     | ------------------ associated items in this implementation
[INFO] [stdout] 357 |   /// Create a new error reporter
[INFO] [stdout] 358 |   pub fn new(source: String) -> Self {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 366 |   pub fn with_file_name(mut self, file_name: String) -> Self {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 372 |   pub fn report_error(&self, error: &ParseError) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 395 |   pub fn report_errors(&self, errors: &[ParseError]) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 403 |   pub fn generate_summary(&self, errors: &[ParseError]) -> String {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unexpected_token` is never used
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:449:10
[INFO] [stdout]     |
[INFO] [stdout] 449 |   pub fn unexpected_token(token: &Token, expected: Vec<String>) -> ParseError {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expected_token` is never used
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:460:10
[INFO] [stdout]     |
[INFO] [stdout] 460 |   pub fn expected_token(
[INFO] [stdout]     |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unexpected_end_of_input` is never used
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:479:10
[INFO] [stdout]     |
[INFO] [stdout] 479 |   pub fn unexpected_end_of_input(location: SourceLocation, expected: Vec<String>) -> ParseError {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `invalid_expression` is never used
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:489:10
[INFO] [stdout]     |
[INFO] [stdout] 489 |   pub fn invalid_expression(location: SourceLocation, context: String) -> ParseError {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `missing_semicolon` is never used
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:499:10
[INFO] [stdout]     |
[INFO] [stdout] 499 |   pub fn missing_semicolon(location: SourceLocation) -> ParseError {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `missing_closing_delimiter` is never used
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:507:10
[INFO] [stdout]     |
[INFO] [stdout] 507 |   pub fn missing_closing_delimiter(location: SourceLocation, expected: String) -> ParseError {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `match_arm_parser` and `handler_case_parser` are never used
[INFO] [stdout]    --> packages/compiler/src/parser/parser.rs:583:6
[INFO] [stdout]     |
[INFO] [stdout]  11 | impl Parser {
[INFO] [stdout]     | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 583 |   fn match_arm_parser(&self) -> impl ChumskyParser<Token, MatchArm, Error = Simple<Token>> {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 609 |   fn handler_case_parser(&self) -> impl ChumskyParser<Token, HandlerCase, Error = Simple<Token>> {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NodeCounter` is never constructed
[INFO] [stdout]    --> packages/compiler/src/parser/visitor.rs:700:12
[INFO] [stdout]     |
[INFO] [stdout] 700 | pub struct NodeCounter {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `summary` are never used
[INFO] [stdout]    --> packages/compiler/src/parser/visitor.rs:719:10
[INFO] [stdout]     |
[INFO] [stdout] 717 | impl NodeCounter {
[INFO] [stdout]     | ---------------- associated items in this implementation
[INFO] [stdout] 718 |   /// Create a new node counter
[INFO] [stdout] 719 |   pub fn new() -> Self {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 732 |   pub fn summary(&self) -> String {
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PrettyPrinter` is never constructed
[INFO] [stdout]    --> packages/compiler/src/parser/visitor.rs:997:12
[INFO] [stdout]     |
[INFO] [stdout] 997 | pub struct PrettyPrinter {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `output`, `indent`, `dedent`, and `add_line` are never used
[INFO] [stdout]     --> packages/compiler/src/parser/visitor.rs:1006:10
[INFO] [stdout]      |
[INFO] [stdout] 1004 | impl PrettyPrinter {
[INFO] [stdout]      | ------------------ associated items in this implementation
[INFO] [stdout] 1005 |   /// Create a new pretty printer
[INFO] [stdout] 1006 |   pub fn new() -> Self {
[INFO] [stdout]      |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 1014 |   pub fn output(self) -> String {
[INFO] [stdout]      |          ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1019 |   fn indent(&mut self) {
[INFO] [stdout]      |      ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1024 |   fn dedent(&mut self) {
[INFO] [stdout]      |      ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1031 |   fn add_line(&mut self, content: &str) {
[INFO] [stdout]      |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AstTransformer` is never constructed
[INFO] [stdout]     --> packages/compiler/src/parser/visitor.rs:1262:12
[INFO] [stdout]      |
[INFO] [stdout] 1262 | pub struct AstTransformer {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `was_transformed` are never used
[INFO] [stdout]     --> packages/compiler/src/parser/visitor.rs:1269:10
[INFO] [stdout]      |
[INFO] [stdout] 1267 | impl AstTransformer {
[INFO] [stdout]      | ------------------- associated items in this implementation
[INFO] [stdout] 1268 |   /// Create a new AST transformer
[INFO] [stdout] 1269 |   pub fn new() -> Self {
[INFO] [stdout]      |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 1274 |   pub fn was_transformed(&self) -> bool {
[INFO] [stdout]      |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IdentifierReplacer` is never constructed
[INFO] [stdout]     --> packages/compiler/src/parser/visitor.rs:1383:12
[INFO] [stdout]      |
[INFO] [stdout] 1383 | pub struct IdentifierReplacer {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_replacement`, and `was_replaced` are never used
[INFO] [stdout]     --> packages/compiler/src/parser/visitor.rs:1392:10
[INFO] [stdout]      |
[INFO] [stdout] 1390 | impl IdentifierReplacer {
[INFO] [stdout]      | ----------------------- associated items in this implementation
[INFO] [stdout] 1391 |   /// Create a new identifier replacer
[INFO] [stdout] 1392 |   pub fn new() -> Self {
[INFO] [stdout]      |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 1400 |   pub fn add_replacement(&mut self, old: String, new: String) {
[INFO] [stdout]      |          ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1405 |   pub fn was_replaced(&self) -> bool {
[INFO] [stdout]      |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IdentifierCollector` is never constructed
[INFO] [stdout]     --> packages/compiler/src/parser/visitor.rs:1426:12
[INFO] [stdout]      |
[INFO] [stdout] 1426 | pub struct IdentifierCollector {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `unique_identifiers`, and `summary` are never used
[INFO] [stdout]     --> packages/compiler/src/parser/visitor.rs:1433:10
[INFO] [stdout]      |
[INFO] [stdout] 1431 | impl IdentifierCollector {
[INFO] [stdout]      | ------------------------ associated items in this implementation
[INFO] [stdout] 1432 |   /// Create a new identifier collector
[INFO] [stdout] 1433 |   pub fn new() -> Self {
[INFO] [stdout]      |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 1440 |   pub fn unique_identifiers(&self) -> Vec<String> {
[INFO] [stdout]      |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1448 |   pub fn summary(&self) -> String {
[INFO] [stdout]      |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `var_counter` is never read
[INFO] [stdout]   --> packages/compiler/src/types/desugaring.rs:95:3
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub struct DesugaringContext {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 95 |   var_counter: u32,
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DesugaringContext` 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: method `fresh_var` is never used
[INFO] [stdout]    --> packages/compiler/src/types/desugaring.rs:108:6
[INFO] [stdout]     |
[INFO] [stdout]  98 | impl DesugaringContext {
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 108 |   fn fresh_var(&mut self, prefix: &str) -> String {
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> packages/compiler/debug_parser.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 |       let mut parser = Parser::new();
[INFO] [stdout]    |           ----^^^^^^
[INFO] [stdout]    |           |
[INFO] [stdout]    |           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> packages/compiler/debug_parser.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 |       let mut parser = Parser::new();
[INFO] [stdout]    |           ----^^^^^^
[INFO] [stdout]    |           |
[INFO] [stdout]    |           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `token_count` is assigned to, but never used
[INFO] [stdout]     --> packages/compiler/src/lexer/lexer.rs:1074:9
[INFO] [stdout]      |
[INFO] [stdout] 1074 |     let mut token_count = 0;
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: consider using `_token_count` instead
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `token_count` is never read
[INFO] [stdout]     --> packages/compiler/src/lexer/lexer.rs:1076:7
[INFO] [stdout]      |
[INFO] [stdout] 1076 |       token_count += 1;
[INFO] [stdout]      |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout]      = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]    --> packages/compiler/src/lexer/tokens.rs:105:10
[INFO] [stdout]     |
[INFO] [stdout] 105 |   fn new(context: Self::Context, range: std::ops::Range<Self::Offset>) -> Self {
[INFO] [stdout]     |          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> packages/compiler/src/parser/ast.rs:460:7
[INFO] [stdout]     |
[INFO] [stdout] 460 |       _ => todo!(),
[INFO] [stdout]     |       ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> packages/compiler/src/parser/ast.rs:460:7
[INFO] [stdout]     |
[INFO] [stdout] 447 |       Expression::Literal { span, .. } => *span,
[INFO] [stdout]     |       -------------------------------- matches some of the same values
[INFO] [stdout] 448 |       Expression::Variable { span, .. } => *span,
[INFO] [stdout]     |       --------------------------------- matches some of the same values
[INFO] [stdout] 449 |       Expression::Application { span, .. } => *span,
[INFO] [stdout]     |       ------------------------------------ matches some of the same values
[INFO] [stdout] 450 |       Expression::BinaryOp { span, .. } => *span,
[INFO] [stdout]     |       --------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 460 |       _ => todo!(),
[INFO] [stdout]     |       ^ ...and 9 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> packages/compiler/src/parser/ast.rs:981:7
[INFO] [stdout]     |
[INFO] [stdout] 981 |       _ => todo!(),
[INFO] [stdout]     |       ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> packages/compiler/src/parser/ast.rs:981:7
[INFO] [stdout]     |
[INFO] [stdout] 976 |       Statement::Expression { span, .. } => *span,
[INFO] [stdout]     |       ---------------------------------- matches some of the same values
[INFO] [stdout] 977 |       Statement::Let { span, .. } => *span,
[INFO] [stdout]     |       --------------------------- matches some of the same values
[INFO] [stdout] 978 |       Statement::Type { span, .. } => *span,
[INFO] [stdout]     |       ---------------------------- matches some of the same values
[INFO] [stdout] 979 |       Statement::Effect { span, .. } => *span,
[INFO] [stdout]     |       ------------------------------ matches some of the same values
[INFO] [stdout] 980 |       Statement::Function { span, .. } => *span,
[INFO] [stdout] 981 |       _ => todo!(),
[INFO] [stdout]     |       ^ ...and 1 other patterns collectively make this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> packages/compiler/src/parser/ast.rs:982:7
[INFO] [stdout]     |
[INFO] [stdout] 982 |       _ => todo!(),
[INFO] [stdout]     |       ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> packages/compiler/src/parser/ast.rs:982:7
[INFO] [stdout]     |
[INFO] [stdout] 976 |       Statement::Expression { span, .. } => *span,
[INFO] [stdout]     |       ---------------------------------- matches some of the same values
[INFO] [stdout] 977 |       Statement::Let { span, .. } => *span,
[INFO] [stdout]     |       --------------------------- matches some of the same values
[INFO] [stdout] 978 |       Statement::Type { span, .. } => *span,
[INFO] [stdout]     |       ---------------------------- matches some of the same values
[INFO] [stdout] 979 |       Statement::Effect { span, .. } => *span,
[INFO] [stdout]     |       ------------------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 982 |       _ => todo!(),
[INFO] [stdout]     |       ^ ...and 1 other patterns collectively make this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> packages/compiler/src/parser/parser.rs:659:26
[INFO] [stdout]     |
[INFO] [stdout] 659 |             .map(|(name, args)| TypeExpr::Constructor {
[INFO] [stdout]     |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> packages/compiler/src/parser/mod.rs:100:7
[INFO] [stdout]     |
[INFO] [stdout] 100 |   let mut parser = Parser::new();
[INFO] [stdout]     |       ----^^^^^^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> packages/compiler/src/parser/mod.rs:122:7
[INFO] [stdout]     |
[INFO] [stdout] 122 |   let mut parser = Parser::new();
[INFO] [stdout]     |       ----^^^^^^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> packages/compiler/src/typechecker/annotator.rs:128:17
[INFO] [stdout]     |
[INFO] [stdout] 128 |       .map_err(|e| TypeCheckError::TypeMismatch {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> packages/compiler/src/typechecker/annotator.rs:169:74
[INFO] [stdout]     |
[INFO] [stdout] 169 |       let subst = self.inference.unify(&unified_type, arm_type).map_err(|e| {
[INFO] [stdout]     |                                                                          ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> packages/compiler/src/types/desugaring.rs:257:32
[INFO] [stdout]     |
[INFO] [stdout] 257 |   pub fn apply_bindings(&self, mut expr: SimpleExpression) -> SimpleExpression {
[INFO] [stdout]     |                                ----^^^^
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_b`
[INFO] [stdout]    --> packages/compiler/src/types/adt_tests.rs:421:9
[INFO] [stdout]     |
[INFO] [stdout] 421 |     let var_b = TypeVariable::new(1);
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_var_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> packages/compiler/src/types/pattern_matching_tests.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut inference = TypeInference::new();
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inference`
[INFO] [stdout]   --> packages/compiler/src/types/pattern_matching_tests.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut inference = TypeInference::new();
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inference`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `option_type`
[INFO] [stdout]    --> packages/compiler/src/types/pattern_matching_tests.rs:149:9
[INFO] [stdout]     |
[INFO] [stdout] 149 |     let option_type = Type::sum(vec![
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_option_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> packages/compiler/src/types/pattern_matching_tests.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |     let mut inference = TypeInference::new();
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inference`
[INFO] [stdout]    --> packages/compiler/src/types/pattern_matching_tests.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |     let mut inference = TypeInference::new();
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inference`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> packages/compiler/src/types/pattern_matching_tests.rs:286:9
[INFO] [stdout]     |
[INFO] [stdout] 286 |     let mut inference = TypeInference::new();
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inference`
[INFO] [stdout]    --> packages/compiler/src/types/pattern_matching_tests.rs:286:9
[INFO] [stdout]     |
[INFO] [stdout] 286 |     let mut inference = TypeInference::new();
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inference`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `TypeEnvironment`
[INFO] [stdout]   --> packages/compiler/src/types/mod.rs:34:27
[INFO] [stdout]    |
[INFO] [stdout] 34 |     assert!(matches!(env, TypeEnvironment));
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_TypeEnvironment`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `TypeInference`
[INFO] [stdout]   --> packages/compiler/src/types/mod.rs:35:33
[INFO] [stdout]    |
[INFO] [stdout] 35 |     assert!(matches!(inference, TypeInference));
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_TypeInference`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:276:13
[INFO] [stdout]     |
[INFO] [stdout] 276 |   SkipUntil(Vec<TokenKind>),
[INFO] [stdout]     |   --------- ^^^^^^^^^^^^^^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RecoveryStrategy` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[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] 276 -   SkipUntil(Vec<TokenKind>),
[INFO] [stdout] 276 +   SkipUntil(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:278:3
[INFO] [stdout]     |
[INFO] [stdout] 274 | pub enum RecoveryStrategy {
[INFO] [stdout]     |          ---------------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 278 |   SkipUntilConstruct(String),
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 279 |   /// Insert a missing token
[INFO] [stdout] 280 |   InsertToken(TokenKind),
[INFO] [stdout]     |   ^^^^^^^^^^^
[INFO] [stdout] 281 |   /// Delete the current token
[INFO] [stdout] 282 |   DeleteToken,
[INFO] [stdout]     |   ^^^^^^^^^^^
[INFO] [stdout] 283 |   /// Replace the current token with another
[INFO] [stdout] 284 |   ReplaceToken(TokenKind),
[INFO] [stdout]     |   ^^^^^^^^^^^^
[INFO] [stdout] 285 |   /// Try to parse with a different precedence
[INFO] [stdout] 286 |   TryDifferentPrecedence,
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 287 |   /// Skip to the next statement boundary
[INFO] [stdout] 288 |   SkipToStatementBoundary,
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 289 |   /// Skip to the next declaration boundary
[INFO] [stdout] 290 |   SkipToDeclarationBoundary,
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 291 |   /// Give up on this construct and continue
[INFO] [stdout] 292 |   GiveUpAndContinue,
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RecoveryStrategy` 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 `strategy` and `context` are never read
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:316:7
[INFO] [stdout]     |
[INFO] [stdout] 314 | pub struct ErrorRecoveryContext {
[INFO] [stdout]     |            -------------------- fields in this struct
[INFO] [stdout] 315 |   /// The current recovery strategy
[INFO] [stdout] 316 |   pub strategy: RecoveryStrategy,
[INFO] [stdout]     |       ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 322 |   pub context: Option<String>,
[INFO] [stdout]     |       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ErrorRecoveryContext` 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: method `with_context` is never used
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:342:10
[INFO] [stdout]     |
[INFO] [stdout] 325 | impl ErrorRecoveryContext {
[INFO] [stdout]     | ------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 342 |   pub fn with_context(mut self, context: String) -> Self {
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `report_error` and `report_errors` are never used
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:372:10
[INFO] [stdout]     |
[INFO] [stdout] 356 | impl ErrorReporter {
[INFO] [stdout]     | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 372 |   pub fn report_error(&self, error: &ParseError) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 395 |   pub fn report_errors(&self, errors: &[ParseError]) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expected_token` is never used
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:460:10
[INFO] [stdout]     |
[INFO] [stdout] 460 |   pub fn expected_token(
[INFO] [stdout]     |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unexpected_end_of_input` is never used
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:479:10
[INFO] [stdout]     |
[INFO] [stdout] 479 |   pub fn unexpected_end_of_input(location: SourceLocation, expected: Vec<String>) -> ParseError {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `invalid_expression` is never used
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:489:10
[INFO] [stdout]     |
[INFO] [stdout] 489 |   pub fn invalid_expression(location: SourceLocation, context: String) -> ParseError {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `missing_semicolon` is never used
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:499:10
[INFO] [stdout]     |
[INFO] [stdout] 499 |   pub fn missing_semicolon(location: SourceLocation) -> ParseError {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `missing_closing_delimiter` is never used
[INFO] [stdout]    --> packages/compiler/src/parser/errors.rs:507:10
[INFO] [stdout]     |
[INFO] [stdout] 507 |   pub fn missing_closing_delimiter(location: SourceLocation, expected: String) -> ParseError {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `match_arm_parser` and `handler_case_parser` are never used
[INFO] [stdout]    --> packages/compiler/src/parser/parser.rs:583:6
[INFO] [stdout]     |
[INFO] [stdout]  11 | impl Parser {
[INFO] [stdout]     | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 583 |   fn match_arm_parser(&self) -> impl ChumskyParser<Token, MatchArm, Error = Simple<Token>> {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 609 |   fn handler_case_parser(&self) -> impl ChumskyParser<Token, HandlerCase, Error = Simple<Token>> {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `literals` is never read
[INFO] [stdout]    --> packages/compiler/src/parser/visitor.rs:714:7
[INFO] [stdout]     |
[INFO] [stdout] 700 | pub struct NodeCounter {
[INFO] [stdout]     |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 714 |   pub literals: usize,
[INFO] [stdout]     |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `summary` is never used
[INFO] [stdout]    --> packages/compiler/src/parser/visitor.rs:732:10
[INFO] [stdout]     |
[INFO] [stdout] 717 | impl NodeCounter {
[INFO] [stdout]     | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 732 |   pub fn summary(&self) -> String {
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `summary` is never used
[INFO] [stdout]     --> packages/compiler/src/parser/visitor.rs:1448:10
[INFO] [stdout]      |
[INFO] [stdout] 1431 | impl IdentifierCollector {
[INFO] [stdout]      | ------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1448 |   pub fn summary(&self) -> String {
[INFO] [stdout]      |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `var_counter` is never read
[INFO] [stdout]   --> packages/compiler/src/types/desugaring.rs:95:3
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub struct DesugaringContext {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 95 |   var_counter: u32,
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DesugaringContext` 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: method `fresh_var` is never used
[INFO] [stdout]    --> packages/compiler/src/types/desugaring.rs:108:6
[INFO] [stdout]     |
[INFO] [stdout]  98 | impl DesugaringContext {
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 108 |   fn fresh_var(&mut self, prefix: &str) -> String {
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_temp_dir` is never used
[INFO] [stdout]   --> packages/compiler/src/lib.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn create_temp_dir() -> TempDir {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_temp_file_path` is never used
[INFO] [stdout]   --> packages/compiler/src/lib.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn create_temp_file_path() -> PathBuf {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TEST_SOURCE_CODE` is never used
[INFO] [stdout]   --> packages/compiler/src/lib.rs:33:15
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub const TEST_SOURCE_CODE: &str = "let x = 42 in x + 1";
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestAST` is never constructed
[INFO] [stdout]   --> packages/compiler/src/lib.rs:36:16
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub struct TestAST {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> packages/compiler/src/lib.rs:42:14
[INFO] [stdout]    |
[INFO] [stdout] 41 |     impl TestAST {
[INFO] [stdout]    |     ------------ associated function in this implementation
[INFO] [stdout] 42 |       pub fn new(source: &str) -> Self {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `TypeEnvironment` should have a snake case name
[INFO] [stdout]   --> packages/compiler/src/types/mod.rs:34:27
[INFO] [stdout]    |
[INFO] [stdout] 34 |     assert!(matches!(env, TypeEnvironment));
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `type_environment`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `TypeInference` should have a snake case name
[INFO] [stdout]   --> packages/compiler/src/types/mod.rs:35:33
[INFO] [stdout]    |
[INFO] [stdout] 35 |     assert!(matches!(inference, TypeInference));
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^ help: convert the identifier to snake case: `type_inference`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 46.70s
[INFO] running `Command { std: "docker" "inspect" "47cede3fc34351bf58a807bdf0698ab40a92bfc486e457d764d7489e74a9d8dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47cede3fc34351bf58a807bdf0698ab40a92bfc486e457d764d7489e74a9d8dd", kill_on_drop: false }`
[INFO] [stdout] 47cede3fc34351bf58a807bdf0698ab40a92bfc486e457d764d7489e74a9d8dd
