[INFO] cloning repository https://github.com/jmikkola/ikrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jmikkola/ikrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmikkola%2Fikrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmikkola%2Fikrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2ad02e377a76a1096598143ae60ae3347cceb368
[INFO] checking jmikkola/ikrs against master#4eb62535fc12dd1a63fd43a4173e224e79313c4d for pr-158816
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmikkola%2Fikrs" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jmikkola/ikrs
[INFO] finished tweaking git repo https://github.com/jmikkola/ikrs
[INFO] tweaked toml for git repo https://github.com/jmikkola/ikrs written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jmikkola/ikrs on toolchain 4eb62535fc12dd1a63fd43a4173e224e79313c4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jmikkola/ikrs 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" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tempdir v0.3.7
[INFO] [stderr]   Downloaded itertools v0.10.1
[INFO] [stderr]   Downloaded anyhow v1.0.41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c2c65f3cdb2b814b79c37d5ab1e67bddeaad2de99dae021dbf639d23c602f808
[INFO] running `Command { std: "docker" "start" "c2c65f3cdb2b814b79c37d5ab1e67bddeaad2de99dae021dbf639d23c602f808", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2c65f3cdb2b814b79c37d5ab1e67bddeaad2de99dae021dbf639d23c602f808", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c2c65f3cdb2b814b79c37d5ab1e67bddeaad2de99dae021dbf639d23c602f808" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2c65f3cdb2b814b79c37d5ab1e67bddeaad2de99dae021dbf639d23c602f808", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c2c65f3cdb2b814b79c37d5ab1e67bddeaad2de99dae021dbf639d23c602f808" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.41
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking ikrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/ast.rs:224:16
[INFO] [stdout]     |
[INFO] [stdout] 224 |     ReturnExpr(ExpressionRef),
[INFO] [stdout]     |     ---------- ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Statement` has a derived impl for the trait `Debug`, but this is 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] 224 -     ReturnExpr(ExpressionRef),
[INFO] [stdout] 224 +     ReturnExpr(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/ast.rs:225:14
[INFO] [stdout]     |
[INFO] [stdout] 225 |     ExprStmt(ExpressionRef),
[INFO] [stdout]     |     -------- ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Statement` has a derived impl for the trait `Debug`, but this is 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] 225 -     ExprStmt(ExpressionRef),
[INFO] [stdout] 225 +     ExprStmt(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/ast.rs:226:13
[INFO] [stdout]     |
[INFO] [stdout] 226 |     LetStmt(Box<LetStatement>),
[INFO] [stdout]     |     ------- ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Statement` has a derived impl for the trait `Debug`, but this is 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] 226 -     LetStmt(Box<LetStatement>),
[INFO] [stdout] 226 +     LetStmt(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/parser/ast.rs:227:16
[INFO] [stdout]     |
[INFO] [stdout] 227 |     AssignStmt(ExpressionRef, ExpressionRef),
[INFO] [stdout]     |     ---------- ^^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Statement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 227 -     AssignStmt(ExpressionRef, ExpressionRef),
[INFO] [stdout] 227 +     AssignStmt((), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/ast.rs:228:11
[INFO] [stdout]     |
[INFO] [stdout] 228 |     Block(Vec<StatementRef>),
[INFO] [stdout]     |     ----- ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Statement` has a derived impl for the trait `Debug`, but this is 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] 228 -     Block(Vec<StatementRef>),
[INFO] [stdout] 228 +     Block(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/ast.rs:230:12
[INFO] [stdout]     |
[INFO] [stdout] 230 |     IfStmt(Box<IfStatement>),
[INFO] [stdout]     |     ------ ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Statement` has a derived impl for the trait `Debug`, but this is 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] 230 -     IfStmt(Box<IfStatement>),
[INFO] [stdout] 230 +     IfStmt(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/ast.rs:231:15
[INFO] [stdout]     |
[INFO] [stdout] 231 |     WhileStmt(Box<WhileStatement>),
[INFO] [stdout]     |     --------- ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Statement` has a derived impl for the trait `Debug`, but this is 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] 231 -     WhileStmt(Box<WhileStatement>),
[INFO] [stdout] 231 +     WhileStmt(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/ast.rs:232:13
[INFO] [stdout]     |
[INFO] [stdout] 232 |     ForStmt(Box<ForStatement>),
[INFO] [stdout]     |     ------- ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Statement` has a derived impl for the trait `Debug`, but this is 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] 232 -     ForStmt(Box<ForStatement>),
[INFO] [stdout] 232 +     ForStmt(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/ast.rs:233:15
[INFO] [stdout]     |
[INFO] [stdout] 233 |     MatchStmt(Box<MatchStatement>),
[INFO] [stdout]     |     --------- ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Statement` has a derived impl for the trait `Debug`, but this is 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] 233 -     MatchStmt(Box<MatchStatement>),
[INFO] [stdout] 233 +     MatchStmt(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `super_classes` is never read
[INFO] [stdout]    --> src/parser/ast.rs:557:9
[INFO] [stdout]     |
[INFO] [stdout] 556 | pub struct ClassType {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] 557 |     pub super_classes: Vec<String>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ClassType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `test`, `tbody`, and `ebody` are never read
[INFO] [stdout]    --> src/parser/ast.rs:621:9
[INFO] [stdout]     |
[INFO] [stdout] 620 | pub struct IfStatement {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] 621 |     pub test: ExpressionRef,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 622 |     pub tbody: StatementRef,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 623 |     pub ebody: Option<StatementRef>,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IfStatement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `test` and `body` are never read
[INFO] [stdout]    --> src/parser/ast.rs:643:9
[INFO] [stdout]     |
[INFO] [stdout] 642 | pub struct WhileStatement {
[INFO] [stdout]     |            -------------- fields in this struct
[INFO] [stdout] 643 |     pub test: ExpressionRef,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 644 |     pub body: StatementRef,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `WhileStatement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `variable`, `iterable`, and `body` are never read
[INFO] [stdout]    --> src/parser/ast.rs:660:9
[INFO] [stdout]     |
[INFO] [stdout] 659 | pub struct ForStatement {
[INFO] [stdout]     |            ------------ fields in this struct
[INFO] [stdout] 660 |     pub variable: String,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 661 |     pub iterable: ExpressionRef,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 662 |     pub body: StatementRef,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ForStatement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `matched` and `matchers` are never read
[INFO] [stdout]    --> src/parser/ast.rs:678:9
[INFO] [stdout]     |
[INFO] [stdout] 677 | pub struct MatchStatement {
[INFO] [stdout]     |            -------------- fields in this struct
[INFO] [stdout] 678 |     pub matched: ExpressionRef,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 679 |     pub matchers: Vec<Matcher>,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MatchStatement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pattern` and `body` are never read
[INFO] [stdout]    --> src/parser/ast.rs:697:9
[INFO] [stdout]     |
[INFO] [stdout] 696 | pub struct Matcher {
[INFO] [stdout]     |            ------- fields in this struct
[INFO] [stdout] 697 |     pub pattern: Pattern,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 698 |     pub body: StatementRef,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Matcher` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/ast.rs:718:10
[INFO] [stdout]     |
[INFO] [stdout] 718 |     Name(String),
[INFO] [stdout]     |     ---- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Pattern` has a derived impl for the trait `Debug`, but this is 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] 718 -     Name(String),
[INFO] [stdout] 718 +     Name(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/parser/ast.rs:719:11
[INFO] [stdout]     |
[INFO] [stdout] 719 |     Named(String, Box<Pattern>),
[INFO] [stdout]     |     ----- ^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Pattern` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 719 -     Named(String, Box<Pattern>),
[INFO] [stdout] 719 +     Named((), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/ast.rs:720:13
[INFO] [stdout]     |
[INFO] [stdout] 720 |     Literal(Literal),
[INFO] [stdout]     |     ------- ^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Pattern` has a derived impl for the trait `Debug`, but this is 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] 720 -     Literal(Literal),
[INFO] [stdout] 720 +     Literal(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/ast.rs:721:15
[INFO] [stdout]     |
[INFO] [stdout] 721 |     Structure(Box<StructPattern>),
[INFO] [stdout]     |     --------- ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Pattern` has a derived impl for the trait `Debug`, but this is 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] 721 -     Structure(Box<StructPattern>),
[INFO] [stdout] 721 +     Structure(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/ast.rs:722:11
[INFO] [stdout]     |
[INFO] [stdout] 722 |     Tuple(Vec<Pattern>),
[INFO] [stdout]     |     ----- ^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Pattern` has a derived impl for the trait `Debug`, but this is 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] 722 -     Tuple(Vec<Pattern>),
[INFO] [stdout] 722 +     Tuple(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `struct_name` and `field_patterns` are never read
[INFO] [stdout]    --> src/parser/ast.rs:758:9
[INFO] [stdout]     |
[INFO] [stdout] 757 | pub struct StructPattern {
[INFO] [stdout]     |            ------------- fields in this struct
[INFO] [stdout] 758 |     pub struct_name: String,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 759 |     pub field_patterns: Vec<Pattern>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StructPattern` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `on_type`, `class`, `constraints`, and `methods` are never read
[INFO] [stdout]    --> src/parser/ast.rs:776:9
[INFO] [stdout]     |
[INFO] [stdout] 775 | pub struct InstanceDecl {
[INFO] [stdout]     |            ------------ fields in this struct
[INFO] [stdout] 776 |     pub on_type: TypeRef,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 777 |     pub class: String,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 778 |     pub constraints: Vec<Constraint>,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 779 |     pub methods: Vec<DeclarationRef>,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `InstanceDecl` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `arg_names`, `fn_type`, and `body` are never read
[INFO] [stdout]    --> src/parser/ast.rs:802:9
[INFO] [stdout]     |
[INFO] [stdout] 800 | pub struct FunctionDecl {
[INFO] [stdout]     |            ------------ fields in this struct
[INFO] [stdout] 801 |     pub name: String,
[INFO] [stdout] 802 |     pub arg_names: Vec<String>,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 803 |     pub fn_type: Option<TypeRef>,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 804 |     pub body: StatementRef,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FunctionDecl` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `comments` is never read
[INFO] [stdout]  --> src/parser/tokenize.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Tokens {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 8 |     pub tokens: Vec<(Token, Location)>,
[INFO] [stdout] 9 |     pub comments: Vec<(Comment, Location)>,
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Tokens` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.61s
[INFO] running `Command { std: "docker" "inspect" "c2c65f3cdb2b814b79c37d5ab1e67bddeaad2de99dae021dbf639d23c602f808", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2c65f3cdb2b814b79c37d5ab1e67bddeaad2de99dae021dbf639d23c602f808", kill_on_drop: false }`
[INFO] [stdout] c2c65f3cdb2b814b79c37d5ab1e67bddeaad2de99dae021dbf639d23c602f808
