[INFO] fetching crate fdl 0.1.0...
[INFO] testing fdl-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate fdl 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate fdl 0.1.0
[INFO] finished tweaking crates.io crate fdl 0.1.0
[INFO] tweaked toml for crates.io crate fdl 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fdl 0.1.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 59 packages to latest compatible versions
[INFO] [stderr]       Adding lalrpop v0.20.2 (available: v0.22.2)
[INFO] [stderr]       Adding lalrpop-util v0.20.2 (available: v0.22.2)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded lalrpop-util v0.20.2
[INFO] [stderr]   Downloaded ena v0.14.3
[INFO] [stderr]   Downloaded lalrpop v0.20.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c0ff44b5aee5d0122c957c3aa5a50cee5335fcbd7b4347f29dc080e18e4a528a
[INFO] running `Command { std: "docker" "start" "-a" "c0ff44b5aee5d0122c957c3aa5a50cee5335fcbd7b4347f29dc080e18e4a528a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0ff44b5aee5d0122c957c3aa5a50cee5335fcbd7b4347f29dc080e18e4a528a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0ff44b5aee5d0122c957c3aa5a50cee5335fcbd7b4347f29dc080e18e4a528a", kill_on_drop: false }`
[INFO] [stdout] c0ff44b5aee5d0122c957c3aa5a50cee5335fcbd7b4347f29dc080e18e4a528a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6201437f9e3c386df7a81c432a044f3f22e1c869c6e232d9e8ed2a09f4b578f1
[INFO] running `Command { std: "docker" "start" "-a" "6201437f9e3c386df7a81c432a044f3f22e1c869c6e232d9e8ed2a09f4b578f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling siphasher v1.0.1
[INFO] [stderr]    Compiling equivalent v1.0.2
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling hashbrown v0.16.0
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling ena v0.14.3
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling pico-args v0.5.0
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[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling petgraph v0.6.5
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[INFO] [stderr]    Compiling term v0.7.0
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[INFO] [stderr]    Compiling string_cache v0.8.9
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling lalrpop-util v0.20.2
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling lalrpop v0.20.2
[INFO] [stderr]    Compiling fdl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/parser/spans.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[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 variable: `f`
[INFO] [stdout]    --> src/parser/spans.rs:138:19
[INFO] [stdout]     |
[INFO] [stdout] 138 |     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/parser/mod.rs:39:35
[INFO] [stdout]    |
[INFO] [stdout] 39 |         ParseError::User { error: msg } => unreachable!(),
[INFO] [stdout]    |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `FdlError` is never used
[INFO] [stdout]  --> src/error.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum FdlError {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `convert_parse_error` is never used
[INFO] [stdout]   --> src/parser/mod.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn convert_parse_error<T: Display>(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]   --> src/parser/mod.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub struct Parser {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `parse` are never used
[INFO] [stdout]   --> src/parser/mod.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | impl Parser {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 49 |     pub fn new() -> Parser {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn parse(
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BitXor` is never constructed
[INFO] [stdout]   --> src/parser/ast.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Op {
[INFO] [stdout]    |          -- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 21 |     BitXor,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Op` 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: enum `LetPattern` is never used
[INFO] [stdout]   --> src/parser/ast.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub enum LetPattern {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Case` and `Wildcard` are never constructed
[INFO] [stdout]   --> src/parser/ast.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub enum MatchPattern {
[INFO] [stdout]    |          ------------ variants in this enum
[INFO] [stdout] 52 |     Case(String, String), // TODO
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 53 |     Wildcard(String),     // TODO
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MatchPattern` 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 `0`, `1`, `2`, and `3` are never read
[INFO] [stdout]   --> src/parser/ast.rs:58:11
[INFO] [stdout]    |
[INFO] [stdout] 58 |     BinOp(Spanned<Box<Expr>>, Spanned<Box<Expr>>, Op, Span),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 58 -     BinOp(Spanned<Box<Expr>>, Spanned<Box<Expr>>, Op, Span),
[INFO] [stdout] 58 +     BinOp((), (), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> src/parser/ast.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 |     UnOp(Spanned<Box<Expr>>, UnOp, Span),
[INFO] [stdout]    |     ---- ^^^^^^^^^^^^^^^^^^  ^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 59 -     UnOp(Spanned<Box<Expr>>, UnOp, Span),
[INFO] [stdout] 59 +     UnOp((), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> src/parser/ast.rs:60:10
[INFO] [stdout]    |
[INFO] [stdout] 60 |     Call(String, Vec<Box<Expr>>, Span),
[INFO] [stdout]    |     ---- ^^^^^^  ^^^^^^^^^^^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 60 -     Call(String, Vec<Box<Expr>>, Span),
[INFO] [stdout] 60 +     Call((), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> src/parser/ast.rs:62:17
[INFO] [stdout]    |
[INFO] [stdout] 62 |     FieldAccess(Box<Expr>, String, Span),
[INFO] [stdout]    |     ----------- ^^^^^^^^^  ^^^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 62 -     FieldAccess(Box<Expr>, String, Span),
[INFO] [stdout] 62 +     FieldAccess((), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> src/parser/ast.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 |     ArrayAccess(Box<Expr>, Box<Expr>, Span),
[INFO] [stdout]    |     ----------- ^^^^^^^^^  ^^^^^^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 63 -     ArrayAccess(Box<Expr>, Box<Expr>, Span),
[INFO] [stdout] 63 +     ArrayAccess((), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> src/parser/ast.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 |     If(Spanned<Box<Expr>>, TopLevel, Option<TopLevel>),
[INFO] [stdout]    |     -- ^^^^^^^^^^^^^^^^^^  ^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 64 -     If(Spanned<Box<Expr>>, TopLevel, Option<TopLevel>),
[INFO] [stdout] 64 +     If((), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/parser/ast.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |     Literal(Literal, Spanned<String>),
[INFO] [stdout]    |     ------- ^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 65 -     Literal(Literal, Spanned<String>),
[INFO] [stdout] 65 +     Literal((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/parser/ast.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |     Record(Vec<(Spanned<String>, Box<Expr>)>, Span),
[INFO] [stdout]    |     ------ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 67 -     Record(Vec<(Spanned<String>, Box<Expr>)>, Span),
[INFO] [stdout] 67 +     Record((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser/ast.rs:68:18
[INFO] [stdout]    |
[INFO] [stdout] 68 |     LiteralArray(Spanned<Vec<Box<Expr>>>),
[INFO] [stdout]    |     ------------ ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[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] 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] 68 -     LiteralArray(Spanned<Vec<Box<Expr>>>),
[INFO] [stdout] 68 +     LiteralArray(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser/ast.rs:69:19
[INFO] [stdout]    |
[INFO] [stdout] 69 |     RepeatedArray(Spanned<(Box<Expr>, String)>),
[INFO] [stdout]    |     ------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[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] 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] 69 -     RepeatedArray(Spanned<(Box<Expr>, String)>),
[INFO] [stdout] 69 +     RepeatedArray(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser/ast.rs:70:14
[INFO] [stdout]    |
[INFO] [stdout] 70 |     Variable(Spanned<String>),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[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] 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] 70 -     Variable(Spanned<String>),
[INFO] [stdout] 70 +     Variable(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Case` and `Match` are never constructed
[INFO] [stdout]   --> src/parser/ast.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub enum Expr {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 61 |     Case(Spanned<String>, Box<Expr>), // TODO
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     Match(Box<Expr>, Vec<(Spanned<MatchPattern>, Box<Expr>)>, Span), // TODO
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ReadWrite` is never constructed
[INFO] [stdout]   --> src/parser/ast.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub enum Readability {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] 75 |     ReadWrite,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Readability` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser/ast.rs:88:11
[INFO] [stdout]    |
[INFO] [stdout] 88 |     Ident(Spanned<String>),                        // TODO
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeExpr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 88 -     Ident(Spanned<String>),                        // TODO
[INFO] [stdout] 88 +     Ident(()),                        // TODO
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/parser/ast.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub enum TypeExpr {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] 82 |     Case(
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     Func(Spanned<(Box<TypeExpr>, Box<TypeExpr>)>), // TODO
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 88 |     Ident(Spanned<String>),                        // TODO
[INFO] [stdout] 89 |     Nullable(Box<TypeExpr>, Span),                 // TODO
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 90 |     Record(
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95 |     Ref(Box<TypeExpr>, Spanned<Readability>),      // TODO
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 96 |     TypeVar(Spanned<String>),                      // TODO
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 97 |     Alias(Box<TypeExpr>, Spanned<String>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeExpr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/ast.rs:102:10
[INFO] [stdout]     |
[INFO] [stdout] 102 |     Expr(Box<Expr>),
[INFO] [stdout]     |     ---- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TopLevel` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 102 -     Expr(Box<Expr>),
[INFO] [stdout] 102 +     Expr(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/parser/ast.rs:103:11
[INFO] [stdout]     |
[INFO] [stdout] 103 |     Block(Vec<TopLevel>, Option<Spanned<Box<Expr>>>),
[INFO] [stdout]     |     ----- ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TopLevel` has derived impls for the traits `Clone` and `Debug`, but these are 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] 103 -     Block(Vec<TopLevel>, Option<Spanned<Box<Expr>>>),
[INFO] [stdout] 103 +     Block((), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read
[INFO] [stdout]    --> src/parser/ast.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |     LetDef(
[INFO] [stdout]     |     ------ fields in this variant
[INFO] [stdout] 105 |         String,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 106 |         Option<Spanned<Readability>>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 107 |         Option<Spanned<Box<TypeExpr>>>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 108 |         Box<Expr>,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TopLevel` has derived impls for the traits `Clone` and `Debug`, but these are 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] 105 ~         (),
[INFO] [stdout] 106 ~         (),
[INFO] [stdout] 107 ~         (),
[INFO] [stdout] 108 ~         (),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/parser/ast.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 110 |     Assign(Spanned<String>, Spanned<Box<Expr>>),
[INFO] [stdout]     |     ------ ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TopLevel` has derived impls for the traits `Clone` and `Debug`, but these are 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] 110 -     Assign(Spanned<String>, Spanned<Box<Expr>>),
[INFO] [stdout] 110 +     Assign((), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/ast.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |       FuncDef(
[INFO] [stdout]     |       ------- field in this variant
[INFO] [stdout] 112 | /         Spanned<(
[INFO] [stdout] 113 | |             String,
[INFO] [stdout] 114 | |             Vec<Spanned<(String, Option<Box<TypeExpr>>)>>,
[INFO] [stdout] 115 | |             Box<TopLevel>,
[INFO] [stdout] 116 | |         )>,
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TopLevel` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 112 -         Spanned<(
[INFO] [stdout] 113 -             String,
[INFO] [stdout] 114 -             Vec<Spanned<(String, Option<Box<TypeExpr>>)>>,
[INFO] [stdout] 115 -             Box<TopLevel>,
[INFO] [stdout] 116 -         )>,
[INFO] [stdout] 112 +         (),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sources` is never read
[INFO] [stdout]   --> src/parser/spans.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct SpanManager {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 13 |     sources: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SpanManager` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_source` and `print` are never used
[INFO] [stdout]   --> src/parser/spans.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl SpanManager {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] 18 |     pub fn add_source(&mut self, source: String) -> SpanMaker {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn print(&self, span: Span) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SpannedError` is never constructed
[INFO] [stdout]    --> src/parser/spans.rs:109:12
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub struct SpannedError {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new1`, `new2`, and `print` are never used
[INFO] [stdout]    --> src/parser/spans.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 113 | impl SpannedError {
[INFO] [stdout]     | ----------------- associated items in this implementation
[INFO] [stdout] 114 |     pub fn new1(s1: impl Into<String>, s2: Span) -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |     pub fn new2(s1: impl Into<String>, s2: Span, s3: impl Into<String>, s4: Span) -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub fn print(&self, sm: &SpanManager) -> String {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/parser/spans.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn add_source(&mut self, source: String) -> SpanMaker {
[INFO] [stdout]    |                       ^^^^^^^^^                     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn add_source(&mut self, source: String) -> SpanMaker<'_> {
[INFO] [stdout]    |                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.35s
[INFO] running `Command { std: "docker" "inspect" "6201437f9e3c386df7a81c432a044f3f22e1c869c6e232d9e8ed2a09f4b578f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6201437f9e3c386df7a81c432a044f3f22e1c869c6e232d9e8ed2a09f4b578f1", kill_on_drop: false }`
[INFO] [stdout] 6201437f9e3c386df7a81c432a044f3f22e1c869c6e232d9e8ed2a09f4b578f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 461cf75da0c5af90c33e25307ffaa4048b0beb644aaebbf2c437baaf3cbc398f
[INFO] running `Command { std: "docker" "start" "-a" "461cf75da0c5af90c33e25307ffaa4048b0beb644aaebbf2c437baaf3cbc398f", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/parser/spans.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[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 variable: `f`
[INFO] [stdout]    --> src/parser/spans.rs:138:19
[INFO] [stdout]     |
[INFO] [stdout] 138 |     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/parser/mod.rs:39:35
[INFO] [stdout]    |
[INFO] [stdout] 39 |         ParseError::User { error: msg } => unreachable!(),
[INFO] [stdout]    |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `FdlError` is never used
[INFO] [stdout]  --> src/error.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum FdlError {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `convert_parse_error` is never used
[INFO] [stdout]   --> src/parser/mod.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn convert_parse_error<T: Display>(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]   --> src/parser/mod.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub struct Parser {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `parse` are never used
[INFO] [stdout]   --> src/parser/mod.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | impl Parser {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 49 |     pub fn new() -> Parser {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn parse(
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BitXor` is never constructed
[INFO] [stdout]   --> src/parser/ast.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Op {
[INFO] [stdout]    |          -- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 21 |     BitXor,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Op` 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: enum `LetPattern` is never used
[INFO] [stdout]   --> src/parser/ast.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub enum LetPattern {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Case` and `Wildcard` are never constructed
[INFO] [stdout]   --> src/parser/ast.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub enum MatchPattern {
[INFO] [stdout]    |          ------------ variants in this enum
[INFO] [stdout] 52 |     Case(String, String), // TODO
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 53 |     Wildcard(String),     // TODO
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MatchPattern` 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 `0`, `1`, `2`, and `3` are never read
[INFO] [stdout]   --> src/parser/ast.rs:58:11
[INFO] [stdout]    |
[INFO] [stdout] 58 |     BinOp(Spanned<Box<Expr>>, Spanned<Box<Expr>>, Op, Span),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 58 -     BinOp(Spanned<Box<Expr>>, Spanned<Box<Expr>>, Op, Span),
[INFO] [stdout] 58 +     BinOp((), (), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> src/parser/ast.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 |     UnOp(Spanned<Box<Expr>>, UnOp, Span),
[INFO] [stdout]    |     ---- ^^^^^^^^^^^^^^^^^^  ^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 59 -     UnOp(Spanned<Box<Expr>>, UnOp, Span),
[INFO] [stdout] 59 +     UnOp((), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> src/parser/ast.rs:60:10
[INFO] [stdout]    |
[INFO] [stdout] 60 |     Call(String, Vec<Box<Expr>>, Span),
[INFO] [stdout]    |     ---- ^^^^^^  ^^^^^^^^^^^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 60 -     Call(String, Vec<Box<Expr>>, Span),
[INFO] [stdout] 60 +     Call((), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> src/parser/ast.rs:62:17
[INFO] [stdout]    |
[INFO] [stdout] 62 |     FieldAccess(Box<Expr>, String, Span),
[INFO] [stdout]    |     ----------- ^^^^^^^^^  ^^^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 62 -     FieldAccess(Box<Expr>, String, Span),
[INFO] [stdout] 62 +     FieldAccess((), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> src/parser/ast.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 |     ArrayAccess(Box<Expr>, Box<Expr>, Span),
[INFO] [stdout]    |     ----------- ^^^^^^^^^  ^^^^^^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 63 -     ArrayAccess(Box<Expr>, Box<Expr>, Span),
[INFO] [stdout] 63 +     ArrayAccess((), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> src/parser/ast.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 |     If(Spanned<Box<Expr>>, TopLevel, Option<TopLevel>),
[INFO] [stdout]    |     -- ^^^^^^^^^^^^^^^^^^  ^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 64 -     If(Spanned<Box<Expr>>, TopLevel, Option<TopLevel>),
[INFO] [stdout] 64 +     If((), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/parser/ast.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |     Literal(Literal, Spanned<String>),
[INFO] [stdout]    |     ------- ^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 65 -     Literal(Literal, Spanned<String>),
[INFO] [stdout] 65 +     Literal((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/parser/ast.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |     Record(Vec<(Spanned<String>, Box<Expr>)>, Span),
[INFO] [stdout]    |     ------ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 67 -     Record(Vec<(Spanned<String>, Box<Expr>)>, Span),
[INFO] [stdout] 67 +     Record((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser/ast.rs:68:18
[INFO] [stdout]    |
[INFO] [stdout] 68 |     LiteralArray(Spanned<Vec<Box<Expr>>>),
[INFO] [stdout]    |     ------------ ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[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] 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] 68 -     LiteralArray(Spanned<Vec<Box<Expr>>>),
[INFO] [stdout] 68 +     LiteralArray(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser/ast.rs:69:19
[INFO] [stdout]    |
[INFO] [stdout] 69 |     RepeatedArray(Spanned<(Box<Expr>, String)>),
[INFO] [stdout]    |     ------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[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] 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] 69 -     RepeatedArray(Spanned<(Box<Expr>, String)>),
[INFO] [stdout] 69 +     RepeatedArray(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser/ast.rs:70:14
[INFO] [stdout]    |
[INFO] [stdout] 70 |     Variable(Spanned<String>),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[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] 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] 70 -     Variable(Spanned<String>),
[INFO] [stdout] 70 +     Variable(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Case` and `Match` are never constructed
[INFO] [stdout]   --> src/parser/ast.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub enum Expr {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 61 |     Case(Spanned<String>, Box<Expr>), // TODO
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     Match(Box<Expr>, Vec<(Spanned<MatchPattern>, Box<Expr>)>, Span), // TODO
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ReadWrite` is never constructed
[INFO] [stdout]   --> src/parser/ast.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub enum Readability {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] 75 |     ReadWrite,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Readability` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser/ast.rs:88:11
[INFO] [stdout]    |
[INFO] [stdout] 88 |     Ident(Spanned<String>),                        // TODO
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeExpr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 88 -     Ident(Spanned<String>),                        // TODO
[INFO] [stdout] 88 +     Ident(()),                        // TODO
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/parser/ast.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub enum TypeExpr {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] 82 |     Case(
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     Func(Spanned<(Box<TypeExpr>, Box<TypeExpr>)>), // TODO
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 88 |     Ident(Spanned<String>),                        // TODO
[INFO] [stdout] 89 |     Nullable(Box<TypeExpr>, Span),                 // TODO
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 90 |     Record(
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95 |     Ref(Box<TypeExpr>, Spanned<Readability>),      // TODO
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 96 |     TypeVar(Spanned<String>),                      // TODO
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 97 |     Alias(Box<TypeExpr>, Spanned<String>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeExpr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/ast.rs:102:10
[INFO] [stdout]     |
[INFO] [stdout] 102 |     Expr(Box<Expr>),
[INFO] [stdout]     |     ---- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TopLevel` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 102 -     Expr(Box<Expr>),
[INFO] [stdout] 102 +     Expr(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/parser/ast.rs:103:11
[INFO] [stdout]     |
[INFO] [stdout] 103 |     Block(Vec<TopLevel>, Option<Spanned<Box<Expr>>>),
[INFO] [stdout]     |     ----- ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TopLevel` has derived impls for the traits `Clone` and `Debug`, but these are 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] 103 -     Block(Vec<TopLevel>, Option<Spanned<Box<Expr>>>),
[INFO] [stdout] 103 +     Block((), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read
[INFO] [stdout]    --> src/parser/ast.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |     LetDef(
[INFO] [stdout]     |     ------ fields in this variant
[INFO] [stdout] 105 |         String,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 106 |         Option<Spanned<Readability>>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 107 |         Option<Spanned<Box<TypeExpr>>>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 108 |         Box<Expr>,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TopLevel` has derived impls for the traits `Clone` and `Debug`, but these are 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] 105 ~         (),
[INFO] [stdout] 106 ~         (),
[INFO] [stdout] 107 ~         (),
[INFO] [stdout] 108 ~         (),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/parser/ast.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 110 |     Assign(Spanned<String>, Spanned<Box<Expr>>),
[INFO] [stdout]     |     ------ ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TopLevel` has derived impls for the traits `Clone` and `Debug`, but these are 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] 110 -     Assign(Spanned<String>, Spanned<Box<Expr>>),
[INFO] [stdout] 110 +     Assign((), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/ast.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |       FuncDef(
[INFO] [stdout]     |       ------- field in this variant
[INFO] [stdout] 112 | /         Spanned<(
[INFO] [stdout] 113 | |             String,
[INFO] [stdout] 114 | |             Vec<Spanned<(String, Option<Box<TypeExpr>>)>>,
[INFO] [stdout] 115 | |             Box<TopLevel>,
[INFO] [stdout] 116 | |         )>,
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TopLevel` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 112 -         Spanned<(
[INFO] [stdout] 113 -             String,
[INFO] [stdout] 114 -             Vec<Spanned<(String, Option<Box<TypeExpr>>)>>,
[INFO] [stdout] 115 -             Box<TopLevel>,
[INFO] [stdout] 116 -         )>,
[INFO] [stdout] 112 +         (),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sources` is never read
[INFO] [stdout]   --> src/parser/spans.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct SpanManager {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 13 |     sources: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SpanManager` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_source` and `print` are never used
[INFO] [stdout]   --> src/parser/spans.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl SpanManager {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] 18 |     pub fn add_source(&mut self, source: String) -> SpanMaker {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn print(&self, span: Span) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SpannedError` is never constructed
[INFO] [stdout]    --> src/parser/spans.rs:109:12
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub struct SpannedError {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new1`, `new2`, and `print` are never used
[INFO] [stdout]    --> src/parser/spans.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 113 | impl SpannedError {
[INFO] [stdout]     | ----------------- associated items in this implementation
[INFO] [stdout] 114 |     pub fn new1(s1: impl Into<String>, s2: Span) -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |     pub fn new2(s1: impl Into<String>, s2: Span, s3: impl Into<String>, s4: Span) -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub fn print(&self, sm: &SpanManager) -> String {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/parser/spans.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn add_source(&mut self, source: String) -> SpanMaker {
[INFO] [stdout]    |                       ^^^^^^^^^                     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn add_source(&mut self, source: String) -> SpanMaker<'_> {
[INFO] [stdout]    |                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling fdl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/parser/spans.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[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: `crate::parser::spans::SpanManager`
[INFO] [stdout]   --> src/parser/mod.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     use crate::parser::spans::SpanManager;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/parser/spans.rs:138:19
[INFO] [stdout]     |
[INFO] [stdout] 138 |     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/parser/mod.rs:39:35
[INFO] [stdout]    |
[INFO] [stdout] 39 |         ParseError::User { error: msg } => unreachable!(),
[INFO] [stdout]    |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ast`
[INFO] [stdout]   --> src/parser/mod.rs:96:13
[INFO] [stdout]    |
[INFO] [stdout] 96 |         let ast = parser.parse("temp", script).unwrap();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_ast`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `FdlError` is never used
[INFO] [stdout]  --> src/error.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum FdlError {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BitXor` is never constructed
[INFO] [stdout]   --> src/parser/ast.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Op {
[INFO] [stdout]    |          -- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 21 |     BitXor,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Op` 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: enum `LetPattern` is never used
[INFO] [stdout]   --> src/parser/ast.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub enum LetPattern {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Case` and `Wildcard` are never constructed
[INFO] [stdout]   --> src/parser/ast.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub enum MatchPattern {
[INFO] [stdout]    |          ------------ variants in this enum
[INFO] [stdout] 52 |     Case(String, String), // TODO
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 53 |     Wildcard(String),     // TODO
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MatchPattern` 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 `0`, `1`, `2`, and `3` are never read
[INFO] [stdout]   --> src/parser/ast.rs:58:11
[INFO] [stdout]    |
[INFO] [stdout] 58 |     BinOp(Spanned<Box<Expr>>, Spanned<Box<Expr>>, Op, Span),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 58 -     BinOp(Spanned<Box<Expr>>, Spanned<Box<Expr>>, Op, Span),
[INFO] [stdout] 58 +     BinOp((), (), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> src/parser/ast.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 |     UnOp(Spanned<Box<Expr>>, UnOp, Span),
[INFO] [stdout]    |     ---- ^^^^^^^^^^^^^^^^^^  ^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 59 -     UnOp(Spanned<Box<Expr>>, UnOp, Span),
[INFO] [stdout] 59 +     UnOp((), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> src/parser/ast.rs:60:10
[INFO] [stdout]    |
[INFO] [stdout] 60 |     Call(String, Vec<Box<Expr>>, Span),
[INFO] [stdout]    |     ---- ^^^^^^  ^^^^^^^^^^^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 60 -     Call(String, Vec<Box<Expr>>, Span),
[INFO] [stdout] 60 +     Call((), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> src/parser/ast.rs:62:17
[INFO] [stdout]    |
[INFO] [stdout] 62 |     FieldAccess(Box<Expr>, String, Span),
[INFO] [stdout]    |     ----------- ^^^^^^^^^  ^^^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 62 -     FieldAccess(Box<Expr>, String, Span),
[INFO] [stdout] 62 +     FieldAccess((), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> src/parser/ast.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 |     ArrayAccess(Box<Expr>, Box<Expr>, Span),
[INFO] [stdout]    |     ----------- ^^^^^^^^^  ^^^^^^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 63 -     ArrayAccess(Box<Expr>, Box<Expr>, Span),
[INFO] [stdout] 63 +     ArrayAccess((), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> src/parser/ast.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 |     If(Spanned<Box<Expr>>, TopLevel, Option<TopLevel>),
[INFO] [stdout]    |     -- ^^^^^^^^^^^^^^^^^^  ^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 64 -     If(Spanned<Box<Expr>>, TopLevel, Option<TopLevel>),
[INFO] [stdout] 64 +     If((), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/parser/ast.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |     Literal(Literal, Spanned<String>),
[INFO] [stdout]    |     ------- ^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 65 -     Literal(Literal, Spanned<String>),
[INFO] [stdout] 65 +     Literal((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/parser/ast.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |     Record(Vec<(Spanned<String>, Box<Expr>)>, Span),
[INFO] [stdout]    |     ------ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[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] 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] 67 -     Record(Vec<(Spanned<String>, Box<Expr>)>, Span),
[INFO] [stdout] 67 +     Record((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser/ast.rs:68:18
[INFO] [stdout]    |
[INFO] [stdout] 68 |     LiteralArray(Spanned<Vec<Box<Expr>>>),
[INFO] [stdout]    |     ------------ ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[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] 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] 68 -     LiteralArray(Spanned<Vec<Box<Expr>>>),
[INFO] [stdout] 68 +     LiteralArray(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser/ast.rs:69:19
[INFO] [stdout]    |
[INFO] [stdout] 69 |     RepeatedArray(Spanned<(Box<Expr>, String)>),
[INFO] [stdout]    |     ------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[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] 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] 69 -     RepeatedArray(Spanned<(Box<Expr>, String)>),
[INFO] [stdout] 69 +     RepeatedArray(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser/ast.rs:70:14
[INFO] [stdout]    |
[INFO] [stdout] 70 |     Variable(Spanned<String>),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[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] 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] 70 -     Variable(Spanned<String>),
[INFO] [stdout] 70 +     Variable(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Case` and `Match` are never constructed
[INFO] [stdout]   --> src/parser/ast.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub enum Expr {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 61 |     Case(Spanned<String>, Box<Expr>), // TODO
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     Match(Box<Expr>, Vec<(Spanned<MatchPattern>, Box<Expr>)>, Span), // TODO
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ReadWrite` is never constructed
[INFO] [stdout]   --> src/parser/ast.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub enum Readability {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] 75 |     ReadWrite,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Readability` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser/ast.rs:88:11
[INFO] [stdout]    |
[INFO] [stdout] 88 |     Ident(Spanned<String>),                        // TODO
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeExpr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 88 -     Ident(Spanned<String>),                        // TODO
[INFO] [stdout] 88 +     Ident(()),                        // TODO
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/parser/ast.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub enum TypeExpr {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] 82 |     Case(
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     Func(Spanned<(Box<TypeExpr>, Box<TypeExpr>)>), // TODO
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 88 |     Ident(Spanned<String>),                        // TODO
[INFO] [stdout] 89 |     Nullable(Box<TypeExpr>, Span),                 // TODO
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 90 |     Record(
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95 |     Ref(Box<TypeExpr>, Spanned<Readability>),      // TODO
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 96 |     TypeVar(Spanned<String>),                      // TODO
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 97 |     Alias(Box<TypeExpr>, Spanned<String>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeExpr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/ast.rs:102:10
[INFO] [stdout]     |
[INFO] [stdout] 102 |     Expr(Box<Expr>),
[INFO] [stdout]     |     ---- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TopLevel` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 102 -     Expr(Box<Expr>),
[INFO] [stdout] 102 +     Expr(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/parser/ast.rs:103:11
[INFO] [stdout]     |
[INFO] [stdout] 103 |     Block(Vec<TopLevel>, Option<Spanned<Box<Expr>>>),
[INFO] [stdout]     |     ----- ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TopLevel` has derived impls for the traits `Clone` and `Debug`, but these are 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] 103 -     Block(Vec<TopLevel>, Option<Spanned<Box<Expr>>>),
[INFO] [stdout] 103 +     Block((), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read
[INFO] [stdout]    --> src/parser/ast.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |     LetDef(
[INFO] [stdout]     |     ------ fields in this variant
[INFO] [stdout] 105 |         String,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 106 |         Option<Spanned<Readability>>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 107 |         Option<Spanned<Box<TypeExpr>>>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 108 |         Box<Expr>,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TopLevel` has derived impls for the traits `Clone` and `Debug`, but these are 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] 105 ~         (),
[INFO] [stdout] 106 ~         (),
[INFO] [stdout] 107 ~         (),
[INFO] [stdout] 108 ~         (),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/parser/ast.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 110 |     Assign(Spanned<String>, Spanned<Box<Expr>>),
[INFO] [stdout]     |     ------ ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TopLevel` has derived impls for the traits `Clone` and `Debug`, but these are 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] 110 -     Assign(Spanned<String>, Spanned<Box<Expr>>),
[INFO] [stdout] 110 +     Assign((), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/ast.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |       FuncDef(
[INFO] [stdout]     |       ------- field in this variant
[INFO] [stdout] 112 | /         Spanned<(
[INFO] [stdout] 113 | |             String,
[INFO] [stdout] 114 | |             Vec<Spanned<(String, Option<Box<TypeExpr>>)>>,
[INFO] [stdout] 115 | |             Box<TopLevel>,
[INFO] [stdout] 116 | |         )>,
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TopLevel` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 112 -         Spanned<(
[INFO] [stdout] 113 -             String,
[INFO] [stdout] 114 -             Vec<Spanned<(String, Option<Box<TypeExpr>>)>>,
[INFO] [stdout] 115 -             Box<TopLevel>,
[INFO] [stdout] 116 -         )>,
[INFO] [stdout] 112 +         (),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print` is never used
[INFO] [stdout]   --> src/parser/spans.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl SpanManager {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn print(&self, span: Span) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pairs` is never read
[INFO] [stdout]    --> src/parser/spans.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub struct SpannedError {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 110 |     pairs: Vec<(String, Span)>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SpannedError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new2` and `print` are never used
[INFO] [stdout]    --> src/parser/spans.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 113 | impl SpannedError {
[INFO] [stdout]     | ----------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 119 |     pub fn new2(s1: impl Into<String>, s2: Span, s3: impl Into<String>, s4: Span) -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub fn print(&self, sm: &SpanManager) -> String {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/parser/spans.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn add_source(&mut self, source: String) -> SpanMaker {
[INFO] [stdout]    |                       ^^^^^^^^^                     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn add_source(&mut self, source: String) -> SpanMaker<'_> {
[INFO] [stdout]    |                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.01s
[INFO] running `Command { std: "docker" "inspect" "461cf75da0c5af90c33e25307ffaa4048b0beb644aaebbf2c437baaf3cbc398f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "461cf75da0c5af90c33e25307ffaa4048b0beb644aaebbf2c437baaf3cbc398f", kill_on_drop: false }`
[INFO] [stdout] 461cf75da0c5af90c33e25307ffaa4048b0beb644aaebbf2c437baaf3cbc398f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0c23eb2cc6decf4f357bccc7b36bd70ac0a660d6992057cd554844e1d759b8f2
[INFO] running `Command { std: "docker" "start" "-a" "0c23eb2cc6decf4f357bccc7b36bd70ac0a660d6992057cd554844e1d759b8f2", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `HashSet`
[INFO] [stderr]  --> src/parser/spans.rs:1:33
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]   |                                 ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/parser/spans.rs:138:19
[INFO] [stderr]     |
[INFO] [stderr] 138 |     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/parser/mod.rs:39:35
[INFO] [stderr]    |
[INFO] [stderr] 39 |         ParseError::User { error: msg } => unreachable!(),
[INFO] [stderr]    |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stderr] 
[INFO] [stderr] warning: enum `FdlError` is never used
[INFO] [stderr]  --> src/error.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub enum FdlError {
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `convert_parse_error` is never used
[INFO] [stderr]   --> src/parser/mod.rs:13:4
[INFO] [stderr]    |
[INFO] [stderr] 13 | fn convert_parse_error<T: Display>(
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Parser` is never constructed
[INFO] [stderr]   --> src/parser/mod.rs:43:12
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub struct Parser {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `parse` are never used
[INFO] [stderr]   --> src/parser/mod.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 48 | impl Parser {
[INFO] [stderr]    | ----------- associated items in this implementation
[INFO] [stderr] 49 |     pub fn new() -> Parser {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 56 |     pub fn parse(
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `BitXor` is never constructed
[INFO] [stderr]   --> src/parser/ast.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub enum Op {
[INFO] [stderr]    |          -- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 21 |     BitXor,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Op` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: enum `LetPattern` is never used
[INFO] [stderr]   --> src/parser/ast.rs:45:10
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub enum LetPattern {
[INFO] [stderr]    |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Case` and `Wildcard` are never constructed
[INFO] [stderr]   --> src/parser/ast.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 51 | pub enum MatchPattern {
[INFO] [stderr]    |          ------------ variants in this enum
[INFO] [stderr] 52 |     Case(String, String), // TODO
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 53 |     Wildcard(String),     // TODO
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `MatchPattern` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0`, `1`, `2`, and `3` are never read
[INFO] [stderr]   --> src/parser/ast.rs:58:11
[INFO] [stderr]    |
[INFO] [stderr] 58 |     BinOp(Spanned<Box<Expr>>, Spanned<Box<Expr>>, Op, Span),
[INFO] [stderr]    |     ----- ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^  ^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     fields in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]    |
[INFO] [stderr] 58 -     BinOp(Spanned<Box<Expr>>, Spanned<Box<Expr>>, Op, Span),
[INFO] [stderr] 58 +     BinOp((), (), (), ()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0`, `1`, and `2` are never read
[INFO] [stderr]   --> src/parser/ast.rs:59:10
[INFO] [stderr]    |
[INFO] [stderr] 59 |     UnOp(Spanned<Box<Expr>>, UnOp, Span),
[INFO] [stderr]    |     ---- ^^^^^^^^^^^^^^^^^^  ^^^^  ^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     fields in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]    |
[INFO] [stderr] 59 -     UnOp(Spanned<Box<Expr>>, UnOp, Span),
[INFO] [stderr] 59 +     UnOp((), (), ()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0`, `1`, and `2` are never read
[INFO] [stderr]   --> src/parser/ast.rs:60:10
[INFO] [stderr]    |
[INFO] [stderr] 60 |     Call(String, Vec<Box<Expr>>, Span),
[INFO] [stderr]    |     ---- ^^^^^^  ^^^^^^^^^^^^^^  ^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     fields in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]    |
[INFO] [stderr] 60 -     Call(String, Vec<Box<Expr>>, Span),
[INFO] [stderr] 60 +     Call((), (), ()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0`, `1`, and `2` are never read
[INFO] [stderr]   --> src/parser/ast.rs:62:17
[INFO] [stderr]    |
[INFO] [stderr] 62 |     FieldAccess(Box<Expr>, String, Span),
[INFO] [stderr]    |     ----------- ^^^^^^^^^  ^^^^^^  ^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     fields in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]    |
[INFO] [stderr] 62 -     FieldAccess(Box<Expr>, String, Span),
[INFO] [stderr] 62 +     FieldAccess((), (), ()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0`, `1`, and `2` are never read
[INFO] [stderr]   --> src/parser/ast.rs:63:17
[INFO] [stderr]    |
[INFO] [stderr] 63 |     ArrayAccess(Box<Expr>, Box<Expr>, Span),
[INFO] [stderr]    |     ----------- ^^^^^^^^^  ^^^^^^^^^  ^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     fields in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]    |
[INFO] [stderr] 63 -     ArrayAccess(Box<Expr>, Box<Expr>, Span),
[INFO] [stderr] 63 +     ArrayAccess((), (), ()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0`, `1`, and `2` are never read
[INFO] [stderr]   --> src/parser/ast.rs:64:8
[INFO] [stderr]    |
[INFO] [stderr] 64 |     If(Spanned<Box<Expr>>, TopLevel, Option<TopLevel>),
[INFO] [stderr]    |     -- ^^^^^^^^^^^^^^^^^^  ^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     fields in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]    |
[INFO] [stderr] 64 -     If(Spanned<Box<Expr>>, TopLevel, Option<TopLevel>),
[INFO] [stderr] 64 +     If((), (), ()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0` and `1` are never read
[INFO] [stderr]   --> src/parser/ast.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |     Literal(Literal, Spanned<String>),
[INFO] [stderr]    |     ------- ^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     fields in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]    |
[INFO] [stderr] 65 -     Literal(Literal, Spanned<String>),
[INFO] [stderr] 65 +     Literal((), ()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0` and `1` are never read
[INFO] [stderr]   --> src/parser/ast.rs:67:12
[INFO] [stderr]    |
[INFO] [stderr] 67 |     Record(Vec<(Spanned<String>, Box<Expr>)>, Span),
[INFO] [stderr]    |     ------ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     fields in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]    |
[INFO] [stderr] 67 -     Record(Vec<(Spanned<String>, Box<Expr>)>, Span),
[INFO] [stderr] 67 +     Record((), ()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/parser/ast.rs:68:18
[INFO] [stderr]    |
[INFO] [stderr] 68 |     LiteralArray(Spanned<Vec<Box<Expr>>>),
[INFO] [stderr]    |     ------------ ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 68 -     LiteralArray(Spanned<Vec<Box<Expr>>>),
[INFO] [stderr] 68 +     LiteralArray(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/parser/ast.rs:69:19
[INFO] [stderr]    |
[INFO] [stderr] 69 |     RepeatedArray(Spanned<(Box<Expr>, String)>),
[INFO] [stderr]    |     ------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 69 -     RepeatedArray(Spanned<(Box<Expr>, String)>),
[INFO] [stderr] 69 +     RepeatedArray(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/parser/ast.rs:70:14
[INFO] [stderr]    |
[INFO] [stderr] 70 |     Variable(Spanned<String>),
[INFO] [stderr]    |     -------- ^^^^^^^^^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 70 -     Variable(Spanned<String>),
[INFO] [stderr] 70 +     Variable(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Case` and `Match` are never constructed
[INFO] [stderr]   --> src/parser/ast.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 57 | pub enum Expr {
[INFO] [stderr]    |          ---- variants in this enum
[INFO] [stderr] ...
[INFO] [stderr] 61 |     Case(Spanned<String>, Box<Expr>), // TODO
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 66 |     Match(Box<Expr>, Vec<(Spanned<MatchPattern>, Box<Expr>)>, Span), // TODO
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variant `ReadWrite` is never constructed
[INFO] [stderr]   --> src/parser/ast.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 74 | pub enum Readability {
[INFO] [stderr]    |          ----------- variant in this enum
[INFO] [stderr] 75 |     ReadWrite,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Readability` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/parser/ast.rs:88:11
[INFO] [stderr]    |
[INFO] [stderr] 88 |     Ident(Spanned<String>),                        // TODO
[INFO] [stderr]    |     ----- ^^^^^^^^^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `TypeExpr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 88 -     Ident(Spanned<String>),                        // TODO
[INFO] [stderr] 88 +     Ident(()),                        // TODO
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: multiple variants are never constructed
[INFO] [stderr]   --> src/parser/ast.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 81 | pub enum TypeExpr {
[INFO] [stderr]    |          -------- variants in this enum
[INFO] [stderr] 82 |     Case(
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 87 |     Func(Spanned<(Box<TypeExpr>, Box<TypeExpr>)>), // TODO
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 88 |     Ident(Spanned<String>),                        // TODO
[INFO] [stderr] 89 |     Nullable(Box<TypeExpr>, Span),                 // TODO
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 90 |     Record(
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 95 |     Ref(Box<TypeExpr>, Spanned<Readability>),      // TODO
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 96 |     TypeVar(Spanned<String>),                      // TODO
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 97 |     Alias(Box<TypeExpr>, Spanned<String>),
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `TypeExpr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/parser/ast.rs:102:10
[INFO] [stderr]     |
[INFO] [stderr] 102 |     Expr(Box<Expr>),
[INFO] [stderr]     |     ---- ^^^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[INFO] [stderr]     = note: `TopLevel` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]     |
[INFO] [stderr] 102 -     Expr(Box<Expr>),
[INFO] [stderr] 102 +     Expr(()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0` and `1` are never read
[INFO] [stderr]    --> src/parser/ast.rs:103:11
[INFO] [stderr]     |
[INFO] [stderr] 103 |     Block(Vec<TopLevel>, Option<Spanned<Box<Expr>>>),
[INFO] [stderr]     |     ----- ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     fields in this variant
[INFO] [stderr]     |
[INFO] [stderr]     = note: `TopLevel` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]     |
[INFO] [stderr] 103 -     Block(Vec<TopLevel>, Option<Spanned<Box<Expr>>>),
[INFO] [stderr] 103 +     Block((), ()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0`, `1`, `2`, and `3` are never read
[INFO] [stderr]    --> src/parser/ast.rs:105:9
[INFO] [stderr]     |
[INFO] [stderr] 104 |     LetDef(
[INFO] [stderr]     |     ------ fields in this variant
[INFO] [stderr] 105 |         String,
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr] 106 |         Option<Spanned<Readability>>,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 107 |         Option<Spanned<Box<TypeExpr>>>,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 108 |         Box<Expr>,
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `TopLevel` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]     |
[INFO] [stderr] 105 ~         (),
[INFO] [stderr] 106 ~         (),
[INFO] [stderr] 107 ~         (),
[INFO] [stderr] 108 ~         (),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0` and `1` are never read
[INFO] [stderr]    --> src/parser/ast.rs:110:12
[INFO] [stderr]     |
[INFO] [stderr] 110 |     Assign(Spanned<String>, Spanned<Box<Expr>>),
[INFO] [stderr]     |     ------ ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     fields in this variant
[INFO] [stderr]     |
[INFO] [stderr]     = note: `TopLevel` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]     |
[INFO] [stderr] 110 -     Assign(Spanned<String>, Spanned<Box<Expr>>),
[INFO] [stderr] 110 +     Assign((), ()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/parser/ast.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 111 |       FuncDef(
[INFO] [stderr]     |       ------- field in this variant
[INFO] [stderr] 112 | /         Spanned<(
[INFO] [stderr] 113 | |             String,
[INFO] [stderr] 114 | |             Vec<Spanned<(String, Option<Box<TypeExpr>>)>>,
[INFO] [stderr] 115 | |             Box<TopLevel>,
[INFO] [stderr] 116 | |         )>,
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `TopLevel` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]     |
[INFO] [stderr] 112 -         Spanned<(
[INFO] [stderr] 113 -             String,
[INFO] [stderr] 114 -             Vec<Spanned<(String, Option<Box<TypeExpr>>)>>,
[INFO] [stderr] 115 -             Box<TopLevel>,
[INFO] [stderr] 116 -         )>,
[INFO] [stderr] 112 +         (),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: field `sources` is never read
[INFO] [stderr]   --> src/parser/spans.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct SpanManager {
[INFO] [stderr]    |            ----------- field in this struct
[INFO] [stderr] 13 |     sources: Vec<String>,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `SpanManager` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: methods `add_source` and `print` are never used
[INFO] [stderr]   --> src/parser/spans.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | impl SpanManager {
[INFO] [stderr]    | ---------------- methods in this implementation
[INFO] [stderr] 18 |     pub fn add_source(&mut self, source: String) -> SpanMaker {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 28 |     pub fn print(&self, span: Span) -> String {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `SpannedError` is never constructed
[INFO] [stderr]    --> src/parser/spans.rs:109:12
[INFO] [stderr]     |
[INFO] [stderr] 109 | pub struct SpannedError {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new1`, `new2`, and `print` are never used
[INFO] [stderr]    --> src/parser/spans.rs:114:12
[INFO] [stderr]     |
[INFO] [stderr] 113 | impl SpannedError {
[INFO] [stderr]     | ----------------- associated items in this implementation
[INFO] [stderr] 114 |     pub fn new1(s1: impl Into<String>, s2: Span) -> Self {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 119 |     pub fn new2(s1: impl Into<String>, s2: Span, s3: impl Into<String>, s4: Span) -> Self {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 127 |     pub fn print(&self, sm: &SpanManager) -> String {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/parser/spans.rs:18:23
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn add_source(&mut self, source: String) -> SpanMaker {
[INFO] [stderr]    |                       ^^^^^^^^^                     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                       |
[INFO] [stderr]    |                       the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn add_source(&mut self, source: String) -> SpanMaker<'_> {
[INFO] [stderr]    |                                                              ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `fdl` (lib) generated 35 warnings (run `cargo fix --lib -p fdl` to apply 4 suggestions)
[INFO] [stderr] warning: unused import: `crate::parser::spans::SpanManager`
[INFO] [stderr]   --> src/parser/mod.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |     use crate::parser::spans::SpanManager;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ast`
[INFO] [stderr]   --> src/parser/mod.rs:96:13
[INFO] [stderr]    |
[INFO] [stderr] 96 |         let ast = parser.parse("temp", script).unwrap();
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_ast`
[INFO] [stderr] 
[INFO] [stderr] warning: method `print` is never used
[INFO] [stderr]   --> src/parser/spans.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | impl SpanManager {
[INFO] [stderr]    | ---------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 28 |     pub fn print(&self, span: Span) -> String {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `pairs` is never read
[INFO] [stderr]    --> src/parser/spans.rs:110:5
[INFO] [stderr]     |
[INFO] [stderr] 109 | pub struct SpannedError {
[INFO] [stderr]     |            ------------ field in this struct
[INFO] [stderr] 110 |     pairs: Vec<(String, Span)>,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `SpannedError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new2` and `print` are never used
[INFO] [stderr]    --> src/parser/spans.rs:119:12
[INFO] [stderr]     |
[INFO] [stderr] 113 | impl SpannedError {
[INFO] [stderr]     | ----------------- associated items in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 119 |     pub fn new2(s1: impl Into<String>, s2: Span, s3: impl Into<String>, s4: Span) -> Self {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 127 |     pub fn print(&self, sm: &SpanManager) -> String {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `fdl` (lib test) generated 33 warnings (28 duplicates) (run `cargo fix --lib -p fdl --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fdl-a5ed26ce077722bd)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test parser::tests::test_basic_script ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fdl
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0c23eb2cc6decf4f357bccc7b36bd70ac0a660d6992057cd554844e1d759b8f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c23eb2cc6decf4f357bccc7b36bd70ac0a660d6992057cd554844e1d759b8f2", kill_on_drop: false }`
[INFO] [stdout] 0c23eb2cc6decf4f357bccc7b36bd70ac0a660d6992057cd554844e1d759b8f2
