[INFO] cloning repository https://github.com/0b01/reggae-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0b01/reggae-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0b01%2Freggae-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0b01%2Freggae-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c6c533c2a958a2eca0addd5a373fd9dbc6e9bdcc
[INFO] checking 0b01/reggae-lang against try#84addd32a13fa2d3f62fe5d99031611147b7fb13 for pr-147565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0b01%2Freggae-lang" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/0b01/reggae-lang
[INFO] finished tweaking git repo https://github.com/0b01/reggae-lang
[INFO] tweaked toml for git repo https://github.com/0b01/reggae-lang written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/0b01/reggae-lang on toolchain 84addd32a13fa2d3f62fe5d99031611147b7fb13
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+84addd32a13fa2d3f62fe5d99031611147b7fb13" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/0b01/reggae-lang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+84addd32a13fa2d3f62fe5d99031611147b7fb13" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+84addd32a13fa2d3f62fe5d99031611147b7fb13" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f3b33718c540f79aad41991d29a6fe877c60b207ef7e0da96363c38c0417459
[INFO] running `Command { std: "docker" "start" "-a" "4f3b33718c540f79aad41991d29a6fe877c60b207ef7e0da96363c38c0417459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f3b33718c540f79aad41991d29a6fe877c60b207ef7e0da96363c38c0417459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f3b33718c540f79aad41991d29a6fe877c60b207ef7e0da96363c38c0417459", kill_on_drop: false }`
[INFO] [stdout] 4f3b33718c540f79aad41991d29a6fe877c60b207ef7e0da96363c38c0417459
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+84addd32a13fa2d3f62fe5d99031611147b7fb13" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1be34a99333116cdb363065a564fe09b36fbb05180ca4ff97277c07def520f72
[INFO] running `Command { std: "docker" "start" "-a" "1be34a99333116cdb363065a564fe09b36fbb05180ca4ff97277c07def520f72", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.2
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking rustyline v6.0.0
[INFO] [stderr]     Checking reggae v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `error` and `index` are never read
[INFO] [stdout]   --> src/lex.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct LexError {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 40 |     pub error: &'static str,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 41 |     pub index: usize
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `with_index` is never used
[INFO] [stdout]   --> src/lex.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl LexError {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn with_index(msg: &'static str, index: usize) -> LexError {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/parse.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Lru(isize),
[INFO] [stdout]   |     --- ^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Cache` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 -     Lru(isize),
[INFO] [stdout] 9 +     Lru(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parse.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Mru(isize),
[INFO] [stdout]    |     --- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cache` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 -     Mru(isize),
[INFO] [stdout] 10 +     Mru(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parse.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Lfu(isize),
[INFO] [stdout]    |     --- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cache` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 -     Lfu(isize),
[INFO] [stdout] 11 +     Lfu(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parse.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Mfu(isize),
[INFO] [stdout]    |     --- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cache` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 -     Mfu(isize),
[INFO] [stdout] 12 +     Mfu(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `op`, `left`, and `right` are never read
[INFO] [stdout]   --> src/parse.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Binary {
[INFO] [stdout]    |     ------ fields in this variant
[INFO] [stdout] 20 |         op: char,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 21 |         left: Box<Expr>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 22 |         right: Box<Expr>
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `fn_name`, `args`, and `bang` are never read
[INFO] [stdout]   --> src/parse.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     Call {
[INFO] [stdout]    |     ---- fields in this variant
[INFO] [stdout] 26 |         fn_name: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 27 |         args: Vec<Expr>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 28 |         bang: bool,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cond`, `consequence`, and `alternative` are never read
[INFO] [stdout]   --> src/parse.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     Conditional {
[INFO] [stdout]    |     ----------- fields in this variant
[INFO] [stdout] 32 |         cond: Box<Expr>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 33 |         consequence: Box<Expr>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 34 |         alternative: Box<Expr>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `var_name`, `start`, `end`, `step`, and `body` are never read
[INFO] [stdout]   --> src/parse.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     For {
[INFO] [stdout]    |     --- fields in this variant
[INFO] [stdout] 38 |         var_name: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 39 |         start: Box<Expr>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 40 |         end: Box<Expr>,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 41 |         step: Option<Box<Expr>>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 42 |         body: Box<Expr>
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parse.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     Number(f64),
[INFO] [stdout]    |     ------ ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 45 -     Number(f64),
[INFO] [stdout] 45 +     Number(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parse.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     Str(String),
[INFO] [stdout]    |     --- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 46 -     Str(String),
[INFO] [stdout] 46 +     Str(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parse.rs:48:14
[INFO] [stdout]    |
[INFO] [stdout] 48 |     Variable(String),
[INFO] [stdout]    |     -------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 48 -     Variable(String),
[INFO] [stdout] 48 +     Variable(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `variables` and `body` are never read
[INFO] [stdout]   --> src/parse.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     VarIn {
[INFO] [stdout]    |     ----- fields in this variant
[INFO] [stdout] 51 |         variables: Vec<(String, Option<Expr>)>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 52 |         body: Box<Expr>
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `args`, `is_op`, and `prec` are never read
[INFO] [stdout]   --> src/parse.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub struct Prototype {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 59 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 60 |     pub args: Vec<(String, String)>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 61 |     pub is_op: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 62 |     pub prec: usize,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Prototype` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `prototype`, `body`, `is_anon`, and `cache` are never read
[INFO] [stdout]   --> src/parse.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub struct Function {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 68 |     pub prototype: Prototype,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 69 |     pub body: Option<Expr>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 70 |     pub is_anon: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 71 |     pub cache: Cache,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `error` and `index` are never read
[INFO] [stdout]   --> src/lex.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct LexError {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 40 |     pub error: &'static str,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 41 |     pub index: usize
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `with_index` is never used
[INFO] [stdout]   --> src/lex.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl LexError {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn with_index(msg: &'static str, index: usize) -> LexError {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/parse.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Lru(isize),
[INFO] [stdout]   |     --- ^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Cache` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 -     Lru(isize),
[INFO] [stdout] 9 +     Lru(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parse.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Mru(isize),
[INFO] [stdout]    |     --- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cache` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 -     Mru(isize),
[INFO] [stdout] 10 +     Mru(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parse.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Lfu(isize),
[INFO] [stdout]    |     --- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cache` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 -     Lfu(isize),
[INFO] [stdout] 11 +     Lfu(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parse.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Mfu(isize),
[INFO] [stdout]    |     --- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cache` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 -     Mfu(isize),
[INFO] [stdout] 12 +     Mfu(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `op`, `left`, and `right` are never read
[INFO] [stdout]   --> src/parse.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Binary {
[INFO] [stdout]    |     ------ fields in this variant
[INFO] [stdout] 20 |         op: char,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 21 |         left: Box<Expr>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 22 |         right: Box<Expr>
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `fn_name`, `args`, and `bang` are never read
[INFO] [stdout]   --> src/parse.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     Call {
[INFO] [stdout]    |     ---- fields in this variant
[INFO] [stdout] 26 |         fn_name: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 27 |         args: Vec<Expr>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 28 |         bang: bool,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cond`, `consequence`, and `alternative` are never read
[INFO] [stdout]   --> src/parse.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     Conditional {
[INFO] [stdout]    |     ----------- fields in this variant
[INFO] [stdout] 32 |         cond: Box<Expr>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 33 |         consequence: Box<Expr>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 34 |         alternative: Box<Expr>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `var_name`, `start`, `end`, `step`, and `body` are never read
[INFO] [stdout]   --> src/parse.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     For {
[INFO] [stdout]    |     --- fields in this variant
[INFO] [stdout] 38 |         var_name: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 39 |         start: Box<Expr>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 40 |         end: Box<Expr>,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 41 |         step: Option<Box<Expr>>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 42 |         body: Box<Expr>
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parse.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     Number(f64),
[INFO] [stdout]    |     ------ ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 45 -     Number(f64),
[INFO] [stdout] 45 +     Number(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parse.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     Str(String),
[INFO] [stdout]    |     --- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 46 -     Str(String),
[INFO] [stdout] 46 +     Str(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parse.rs:48:14
[INFO] [stdout]    |
[INFO] [stdout] 48 |     Variable(String),
[INFO] [stdout]    |     -------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 48 -     Variable(String),
[INFO] [stdout] 48 +     Variable(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `variables` and `body` are never read
[INFO] [stdout]   --> src/parse.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     VarIn {
[INFO] [stdout]    |     ----- fields in this variant
[INFO] [stdout] 51 |         variables: Vec<(String, Option<Expr>)>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 52 |         body: Box<Expr>
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `args`, `is_op`, and `prec` are never read
[INFO] [stdout]   --> src/parse.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub struct Prototype {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 59 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 60 |     pub args: Vec<(String, String)>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 61 |     pub is_op: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 62 |     pub prec: usize,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Prototype` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `prototype`, `body`, `is_anon`, and `cache` are never read
[INFO] [stdout]   --> src/parse.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub struct Function {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 68 |     pub prototype: Prototype,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 69 |     pub body: Option<Expr>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 70 |     pub is_anon: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 71 |     pub cache: Cache,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.62s
[INFO] running `Command { std: "docker" "inspect" "1be34a99333116cdb363065a564fe09b36fbb05180ca4ff97277c07def520f72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1be34a99333116cdb363065a564fe09b36fbb05180ca4ff97277c07def520f72", kill_on_drop: false }`
[INFO] [stdout] 1be34a99333116cdb363065a564fe09b36fbb05180ca4ff97277c07def520f72
