[INFO] cloning repository https://github.com/invpt/radi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/invpt/radi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finvpt%2Fradi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finvpt%2Fradi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2cf47619b4a2c16494475e34fb044d7191bfbf63
[INFO] building invpt/radi against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finvpt%2Fradi" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/invpt/radi on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/invpt/radi
[INFO] finished tweaking git repo https://github.com/invpt/radi
[INFO] tweaked toml for git repo https://github.com/invpt/radi written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/invpt/radi 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8398692a0aa29d25f824846af6aad2ce75af4956f94dc45d50d6331e480bc9a
[INFO] running `Command { std: "docker" "start" "-a" "a8398692a0aa29d25f824846af6aad2ce75af4956f94dc45d50d6331e480bc9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8398692a0aa29d25f824846af6aad2ce75af4956f94dc45d50d6331e480bc9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8398692a0aa29d25f824846af6aad2ce75af4956f94dc45d50d6331e480bc9a", kill_on_drop: false }`
[INFO] [stdout] a8398692a0aa29d25f824846af6aad2ce75af4956f94dc45d50d6331e480bc9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1c91d41adf2a6115f702987bc7692222cce45ffde648f474ad639f756fe2045
[INFO] running `Command { std: "docker" "start" "-a" "f1c91d41adf2a6115f702987bc7692222cce45ffde648f474ad639f756fe2045", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling codef v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cfg`
[INFO] [stdout]  --> src/optimizers/simplify/mod.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn run(&mut self, cfg: &mut Cfg) {
[INFO] [stdout]   |                       ^^^ help: if this is intentional, prefix it with an underscore: `_cfg`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module`
[INFO] [stdout]  --> src/backends/riscv/mod.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn codegen(module: Module) -> Vec<u8> {
[INFO] [stdout]   |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cfg`
[INFO] [stdout]   --> src/backends/riscv/mod.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn gen(&mut self, cfg: Cfg) {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_cfg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/char_reader.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl<'r, R: CharReader> CharReaderSaver<'r, R> {
[INFO] [stdout]    | ---------------------------------------------- associated function in this implementation
[INFO] [stdout] 14 |     pub fn new(chars: &'r mut R) -> CharReaderSaver<'r, R> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `warning` and `error` are never used
[INFO] [stdout]   --> src/errors.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<'s> ErrorStream<'s> {
[INFO] [stdout]    | ------------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn warning(&self, warning: impl Into<CompilationError<'s>>) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn error(&self, error: impl Into<CompilationError<'s>>) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind` and `span` are never read
[INFO] [stdout]   --> src/errors.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct CompilationError<'s> {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout] 30 |     pub kind: CompilationErrorKind<'s>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 31 |     pub span: Option<Span>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompilationError` 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/errors.rs:36:11
[INFO] [stdout]    |
[INFO] [stdout] 36 |     Parse(ParseErrorKind<'s>),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompilationErrorKind` 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] 36 |     Parse(()),
[INFO] [stdout]    |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/errors.rs:37:18
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Tokenization(TokenizationErrorKind),
[INFO] [stdout]    |     ------------ ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompilationErrorKind` 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] 37 |     Tokenization(()),
[INFO] [stdout]    |                  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/errors.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Io(io::Error),
[INFO] [stdout]    |     -- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompilationErrorKind` 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] 38 |     Io(()),
[INFO] [stdout]    |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind` and `span` are never read
[INFO] [stdout]   --> src/parser/mod.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct ParseError<'s> {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 15 |     pub kind: ParseErrorKind<'s>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 16 |     pub span: Option<Span>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser/mod.rs:21:16
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Unexpected(Option<Token<'s>>),
[INFO] [stdout]    |     ---------- ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseErrorKind` 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] 21 |     Unexpected(()),
[INFO] [stdout]    |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `errors` is never read
[INFO] [stdout]   --> src/parser/mod.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | struct Parser<'s, R> {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 46 |     tokens: Tokens<'s, R>,
[INFO] [stdout] 47 |     errors: &'s ErrorStream<'s>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `peek` is never used
[INFO] [stdout]    --> src/parser/mod.rs:626:8
[INFO] [stdout]     |
[INFO] [stdout] 50  | impl<'i, 's, R: CharReader> Parser<'s, R> {
[INFO] [stdout]     | ----------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 626 |     fn peek<T>(&mut self, pred: impl Fn(&Token<'s>) -> Option<T>) -> Result<'s, Option<T>> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Recv`, `BitOr`, `BitXor`, `BitAnd`, `Shl`, and `Shr` are never constructed
[INFO] [stdout]   --> src/parser/ast.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub enum BinOp {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 70 |     Recv,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 71 |     BitOr,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 72 |     BitXor,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 73 |     BitAnd,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 74 |     Shl,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 75 |     Shr,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BinOp` 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:100:12
[INFO] [stdout]     |
[INFO] [stdout] 100 |     String(Intern<'s>),
[INFO] [stdout]     |     ------ ^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Literal` 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] 100 |     String(()),
[INFO] [stdout]     |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Boolean` is never constructed
[INFO] [stdout]    --> src/parser/ast.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 97  | pub enum Literal<'s> {
[INFO] [stdout]     |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 101 |     Boolean(bool),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Literal` 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: function `to_bpred` is never used
[INFO] [stdout]   --> src/parser/preds.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn to_bpred<'s, T>(
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind` and `span` are never read
[INFO] [stdout]   --> src/reifier/mod.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct ReifyError<'s> {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 20 |     pub kind: ReifyErrorKind<'s>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 21 |     pub span: Option<Span>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReifyError` 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/reifier/mod.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 |     UndefinedSymbol(Intern<'s>),
[INFO] [stdout]    |     --------------- ^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReifyErrorKind` 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] 28 |     UndefinedSymbol(()),
[INFO] [stdout]    |                     ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/reifier/mod.rs:29:22
[INFO] [stdout]    |
[INFO] [stdout] 29 |     UnexpectedMarker(SolveMarker),
[INFO] [stdout]    |     ---------------- ^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReifyErrorKind` 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] 29 |     UnexpectedMarker(()),
[INFO] [stdout]    |                      ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InvalidFile` and `TypeAssertionConflict` are never constructed
[INFO] [stdout]   --> src/reifier/mod.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub enum ReifyErrorKind<'s> {
[INFO] [stdout]    |          -------------- variants in this enum
[INFO] [stdout] 26 |     InvalidFile,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     TypeAssertionConflict,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReifyErrorKind` 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 function `x` is never used
[INFO] [stdout]    --> src/reifier/mod.rs:739:8
[INFO] [stdout]     |
[INFO] [stdout] 61  | impl<'s> Reifier<'s> {
[INFO] [stdout]     | -------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 739 |     fn x() {
[INFO] [stdout]     |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `main` is never read
[INFO] [stdout]   --> src/reifier/rst.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Module<'s> {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 11 |     pub main: Option<Symbol>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Module` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Println`, `Input`, and `Itoa` are never constructed
[INFO] [stdout]   --> src/reifier/rst.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub enum Builtin {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 22 |     Println,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 23 |     Input,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 24 |     Itoa,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Builtin` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TypeDef` is never constructed
[INFO] [stdout]   --> src/reifier/rst.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct TypeDef<'s> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeDef` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_unit` is never used
[INFO] [stdout]   --> src/reifier/rst.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl<'s> Type<'s> {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn is_unit(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `decl_span` and `name` are never read
[INFO] [stdout]    --> src/reifier/rst.rs:183:9
[INFO] [stdout]     |
[INFO] [stdout] 182 | pub struct Local<'s> {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 183 |     pub decl_span: Span,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 184 |     pub name: Intern<'s>,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Local` 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 `decl_span` is never read
[INFO] [stdout]    --> src/reifier/rst.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 190 | pub struct Def<'s> {
[INFO] [stdout]     |            --- field in this struct
[INFO] [stdout] 191 |     pub decl_span: Span,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Def` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `index` is never used
[INFO] [stdout]    --> src/reifier/rst.rs:200:12
[INFO] [stdout]     |
[INFO] [stdout] 199 | impl Symbol {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] 200 |     pub fn index(self) -> usize {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]    --> src/reifier/rst.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 212 | pub struct Expr<'s> {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 213 |     pub kind: ExprKind<'s>,
[INFO] [stdout] 214 |     pub span: Span,
[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/reifier/rst.rs:261:12
[INFO] [stdout]     |
[INFO] [stdout] 261 |     Symbol(Symbol),
[INFO] [stdout]     |     ------ ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PatternKind` 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] 261 |     Symbol(()),
[INFO] [stdout]     |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VariantItem` is never constructed
[INFO] [stdout]    --> src/reifier/rst.rs:265:12
[INFO] [stdout]     |
[INFO] [stdout] 265 | pub struct VariantItem<'s> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VariantItem` 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 `main` and `defs` are never read
[INFO] [stdout]   --> src/lowerer/lir.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Module<'s> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 10 |     pub main: Option<Symbol>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 11 |     pub defs: FxHashMap<Symbol, Def<'s>>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Module` 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` and `value` are never read
[INFO] [stdout]   --> src/lowerer/lir.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Def<'s> {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] 16 |     pub name: Intern<'s>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 17 |     pub value: Value<'s>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Def` 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 `temps`, `params`, `blocks`, and `entry` are never read
[INFO] [stdout]   --> src/lowerer/lir.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Cfg {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] 22 |     pub temps: usize,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 23 |     pub params: Box<[Temp]>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 24 |     pub blocks: Box<[Block]>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 25 |     pub entry: BlockRef,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cfg` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TempInfo` is never constructed
[INFO] [stdout]   --> src/lowerer/lir.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct TempInfo {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TempInfo` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `successors` is never used
[INFO] [stdout]   --> src/lowerer/lir.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl<T> Block<T> {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] 48 |     pub fn successors(&self) -> impl Iterator<Item = &T> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `block` and `arguments` are never read
[INFO] [stdout]   --> src/lowerer/lir.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub struct Target {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 70 |     pub block: BlockRef,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 71 |     pub arguments: Box<[Temp]>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Target` 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 `0` and `1` are never read
[INFO] [stdout]   --> src/lowerer/lir.rs:93:10
[INFO] [stdout]    |
[INFO] [stdout] 93 |     Load(Temp, Producer),
[INFO] [stdout]    |     ---- ^^^^  ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Insn` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 93 |     Load((), ()),
[INFO] [stdout]    |          ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/lowerer/lir.rs:94:11
[INFO] [stdout]    |
[INFO] [stdout] 94 |     Store(MemRef, Temp),
[INFO] [stdout]    |     ----- ^^^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Insn` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 94 |     Store((), ()),
[INFO] [stdout]    |           ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]   --> src/lowerer/lir.rs:99:18
[INFO] [stdout]    |
[INFO] [stdout] 99 |     Memory(Kind, MemRef),
[INFO] [stdout]    |     ------       ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Producer` 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] 99 |     Memory(Kind, ()),
[INFO] [stdout]    |                  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]    --> src/lowerer/lir.rs:100:18
[INFO] [stdout]     |
[INFO] [stdout] 100 |     Symbol(Kind, Symbol),
[INFO] [stdout]     |     ------       ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Producer` 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] 100 |     Symbol(Kind, ()),
[INFO] [stdout]     |                  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lowerer/lir.rs:101:13
[INFO] [stdout]     |
[INFO] [stdout] 101 |     Builtin(Builtin),
[INFO] [stdout]     |     ------- ^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Producer` 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] 101 |     Builtin(()),
[INFO] [stdout]     |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lowerer/lir.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 |     Ir(Cfg),
[INFO] [stdout]     |     -- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Producer` 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] 102 |     Ir(()),
[INFO] [stdout]     |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `1` and `2` are never read
[INFO] [stdout]    --> src/lowerer/lir.rs:104:19
[INFO] [stdout]     |
[INFO] [stdout] 104 |     Binary(BinOp, Temp, Temp),
[INFO] [stdout]     |     ------        ^^^^  ^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Producer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 104 |     Binary(BinOp, (), ()),
[INFO] [stdout]     |                   ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]    --> src/lowerer/lir.rs:105:17
[INFO] [stdout]     |
[INFO] [stdout] 105 |     Unary(UnOp, Temp),
[INFO] [stdout]     |     -----       ^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Producer` 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] 105 |     Unary(UnOp, ()),
[INFO] [stdout]     |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/lowerer/lir.rs:106:10
[INFO] [stdout]     |
[INFO] [stdout] 106 |     Call(Temp, Box<[Temp]>, Kind),
[INFO] [stdout]     |     ---- ^^^^  ^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Producer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 106 |     Call((), (), Kind),
[INFO] [stdout]     |          ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lowerer/lir.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 |     ConstI(u64),
[INFO] [stdout]     |     ------ ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Producer` 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] 107 |     ConstI(()),
[INFO] [stdout]     |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lowerer/lir.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 |     ConstF(f64),
[INFO] [stdout]     |     ------ ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Producer` 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] 108 |     ConstF(()),
[INFO] [stdout]     |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Copy` is never constructed
[INFO] [stdout]    --> src/lowerer/lir.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 98  | pub enum Producer {
[INFO] [stdout]     |          -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 103 |     Copy(Temp),
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Producer` 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 `0` and `1` are never read
[INFO] [stdout]    --> src/lowerer/lir.rs:152:19
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub struct MemRef(pub Temp, pub u64);
[INFO] [stdout]     |            ------ ^^^^^^^^  ^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            fields in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing these fields
[INFO] [stdout]     = note: `MemRef` 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 `BitNotI` is never constructed
[INFO] [stdout]    --> src/lowerer/lir.rs:183:5
[INFO] [stdout]     |
[INFO] [stdout] 181 | pub enum UnOp {
[INFO] [stdout]     |          ---- variant in this enum
[INFO] [stdout] 182 |     BoolNotI,
[INFO] [stdout] 183 |     BitNotI,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `UnOp` 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/lowerer/lir.rs:218:14
[INFO] [stdout]     |
[INFO] [stdout] 218 |     Function(Cfg),
[INFO] [stdout]     |     -------- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Value` 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] 218 |     Function(()),
[INFO] [stdout]     |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Integer`, `Float`, `Tuple`, and `Variant` are never constructed
[INFO] [stdout]    --> src/lowerer/lir.rs:214:5
[INFO] [stdout]     |
[INFO] [stdout] 213 | pub enum Value<'s> {
[INFO] [stdout]     |          ----- variants in this enum
[INFO] [stdout] 214 |     Integer(i64),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 215 |     Float(f64),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 216 |     Tuple(Box<[Value<'s>]>),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 217 |     Variant(Intern<'s>, Option<Box<Value<'s>>>),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Value` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `optimize` is never used
[INFO] [stdout]  --> src/optimizers/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn optimize(module: &mut Module) {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `OptimizationPass` is never used
[INFO] [stdout]   --> src/optimizers/mod.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | trait OptimizationPass {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Simplify` is never constructed
[INFO] [stdout]  --> src/optimizers/simplify/mod.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Simplify {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `codegen` is never used
[INFO] [stdout]  --> src/backends/riscv/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn codegen(module: Module) -> Vec<u8> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RvCodegen` is never constructed
[INFO] [stdout]  --> src/backends/riscv/mod.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct RvCodegen {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `gen` is never used
[INFO] [stdout]   --> src/backends/riscv/mod.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl RvCodegen {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 14 |     fn gen(&mut self, cfg: Cfg) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RvInsn` is never used
[INFO] [stdout]   --> src/backends/riscv/mod.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 19 | enum RvInsn {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dominators` is never used
[INFO] [stdout]  --> src/backends/riscv/regalloc.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn dominators(cfg: &Cfg) -> Vec<Option<BlockRef>> {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `intersect` is never used
[INFO] [stdout]   --> src/backends/riscv/regalloc.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn intersect(labels: &Vec<usize>, doms: &mut [Option<BlockRef>], b1: BlockRef, b2: BlockRef) -> BlockRef {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dfs` is never used
[INFO] [stdout]   --> src/backends/riscv/regalloc.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn dfs(cfg: &Cfg, block: BlockRef, visited: &mut Vec<bool>, labels: &mut Vec<usize>, postorder: &mut Vec<BlockRef>, preds: &mut Vec<Vec<B...
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.40s
[INFO] running `Command { std: "docker" "inspect" "f1c91d41adf2a6115f702987bc7692222cce45ffde648f474ad639f756fe2045", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1c91d41adf2a6115f702987bc7692222cce45ffde648f474ad639f756fe2045", kill_on_drop: false }`
[INFO] [stdout] f1c91d41adf2a6115f702987bc7692222cce45ffde648f474ad639f756fe2045
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d43b7bff4a5dc2f509403408dba871d59740cdab369147d76bc77737c3a973b
[INFO] running `Command { std: "docker" "start" "-a" "0d43b7bff4a5dc2f509403408dba871d59740cdab369147d76bc77737c3a973b", kill_on_drop: false }`
[INFO] [stderr]    Compiling codef v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cfg`
[INFO] [stdout]  --> src/optimizers/simplify/mod.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn run(&mut self, cfg: &mut Cfg) {
[INFO] [stdout]   |                       ^^^ help: if this is intentional, prefix it with an underscore: `_cfg`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module`
[INFO] [stdout]  --> src/backends/riscv/mod.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn codegen(module: Module) -> Vec<u8> {
[INFO] [stdout]   |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cfg`
[INFO] [stdout]   --> src/backends/riscv/mod.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn gen(&mut self, cfg: Cfg) {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_cfg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/char_reader.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl<'r, R: CharReader> CharReaderSaver<'r, R> {
[INFO] [stdout]    | ---------------------------------------------- associated function in this implementation
[INFO] [stdout] 14 |     pub fn new(chars: &'r mut R) -> CharReaderSaver<'r, R> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `warning` and `error` are never used
[INFO] [stdout]   --> src/errors.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<'s> ErrorStream<'s> {
[INFO] [stdout]    | ------------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn warning(&self, warning: impl Into<CompilationError<'s>>) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn error(&self, error: impl Into<CompilationError<'s>>) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind` and `span` are never read
[INFO] [stdout]   --> src/errors.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct CompilationError<'s> {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout] 30 |     pub kind: CompilationErrorKind<'s>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 31 |     pub span: Option<Span>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompilationError` 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/errors.rs:36:11
[INFO] [stdout]    |
[INFO] [stdout] 36 |     Parse(ParseErrorKind<'s>),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompilationErrorKind` 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] 36 |     Parse(()),
[INFO] [stdout]    |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/errors.rs:37:18
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Tokenization(TokenizationErrorKind),
[INFO] [stdout]    |     ------------ ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompilationErrorKind` 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] 37 |     Tokenization(()),
[INFO] [stdout]    |                  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/errors.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Io(io::Error),
[INFO] [stdout]    |     -- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompilationErrorKind` 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] 38 |     Io(()),
[INFO] [stdout]    |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind` and `span` are never read
[INFO] [stdout]   --> src/parser/mod.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct ParseError<'s> {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 15 |     pub kind: ParseErrorKind<'s>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 16 |     pub span: Option<Span>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser/mod.rs:21:16
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Unexpected(Option<Token<'s>>),
[INFO] [stdout]    |     ---------- ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseErrorKind` 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] 21 |     Unexpected(()),
[INFO] [stdout]    |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `errors` is never read
[INFO] [stdout]   --> src/parser/mod.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | struct Parser<'s, R> {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 46 |     tokens: Tokens<'s, R>,
[INFO] [stdout] 47 |     errors: &'s ErrorStream<'s>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `peek` is never used
[INFO] [stdout]    --> src/parser/mod.rs:626:8
[INFO] [stdout]     |
[INFO] [stdout] 50  | impl<'i, 's, R: CharReader> Parser<'s, R> {
[INFO] [stdout]     | ----------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 626 |     fn peek<T>(&mut self, pred: impl Fn(&Token<'s>) -> Option<T>) -> Result<'s, Option<T>> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Recv`, `BitOr`, `BitXor`, `BitAnd`, `Shl`, and `Shr` are never constructed
[INFO] [stdout]   --> src/parser/ast.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub enum BinOp {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 70 |     Recv,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 71 |     BitOr,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 72 |     BitXor,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 73 |     BitAnd,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 74 |     Shl,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 75 |     Shr,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BinOp` 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:100:12
[INFO] [stdout]     |
[INFO] [stdout] 100 |     String(Intern<'s>),
[INFO] [stdout]     |     ------ ^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Literal` 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] 100 |     String(()),
[INFO] [stdout]     |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Boolean` is never constructed
[INFO] [stdout]    --> src/parser/ast.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 97  | pub enum Literal<'s> {
[INFO] [stdout]     |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 101 |     Boolean(bool),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Literal` 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: function `to_bpred` is never used
[INFO] [stdout]   --> src/parser/preds.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn to_bpred<'s, T>(
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind` and `span` are never read
[INFO] [stdout]   --> src/reifier/mod.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct ReifyError<'s> {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 20 |     pub kind: ReifyErrorKind<'s>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 21 |     pub span: Option<Span>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReifyError` 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/reifier/mod.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 |     UndefinedSymbol(Intern<'s>),
[INFO] [stdout]    |     --------------- ^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReifyErrorKind` 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] 28 |     UndefinedSymbol(()),
[INFO] [stdout]    |                     ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/reifier/mod.rs:29:22
[INFO] [stdout]    |
[INFO] [stdout] 29 |     UnexpectedMarker(SolveMarker),
[INFO] [stdout]    |     ---------------- ^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReifyErrorKind` 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] 29 |     UnexpectedMarker(()),
[INFO] [stdout]    |                      ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InvalidFile` and `TypeAssertionConflict` are never constructed
[INFO] [stdout]   --> src/reifier/mod.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub enum ReifyErrorKind<'s> {
[INFO] [stdout]    |          -------------- variants in this enum
[INFO] [stdout] 26 |     InvalidFile,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     TypeAssertionConflict,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReifyErrorKind` 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 function `x` is never used
[INFO] [stdout]    --> src/reifier/mod.rs:739:8
[INFO] [stdout]     |
[INFO] [stdout] 61  | impl<'s> Reifier<'s> {
[INFO] [stdout]     | -------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 739 |     fn x() {
[INFO] [stdout]     |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `main` is never read
[INFO] [stdout]   --> src/reifier/rst.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Module<'s> {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 11 |     pub main: Option<Symbol>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Module` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Println`, `Input`, and `Itoa` are never constructed
[INFO] [stdout]   --> src/reifier/rst.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub enum Builtin {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 22 |     Println,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 23 |     Input,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 24 |     Itoa,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Builtin` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TypeDef` is never constructed
[INFO] [stdout]   --> src/reifier/rst.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct TypeDef<'s> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeDef` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_unit` is never used
[INFO] [stdout]   --> src/reifier/rst.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl<'s> Type<'s> {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn is_unit(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `decl_span` and `name` are never read
[INFO] [stdout]    --> src/reifier/rst.rs:183:9
[INFO] [stdout]     |
[INFO] [stdout] 182 | pub struct Local<'s> {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 183 |     pub decl_span: Span,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 184 |     pub name: Intern<'s>,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Local` 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 `decl_span` is never read
[INFO] [stdout]    --> src/reifier/rst.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 190 | pub struct Def<'s> {
[INFO] [stdout]     |            --- field in this struct
[INFO] [stdout] 191 |     pub decl_span: Span,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Def` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `index` is never used
[INFO] [stdout]    --> src/reifier/rst.rs:200:12
[INFO] [stdout]     |
[INFO] [stdout] 199 | impl Symbol {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] 200 |     pub fn index(self) -> usize {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]    --> src/reifier/rst.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 212 | pub struct Expr<'s> {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 213 |     pub kind: ExprKind<'s>,
[INFO] [stdout] 214 |     pub span: Span,
[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/reifier/rst.rs:261:12
[INFO] [stdout]     |
[INFO] [stdout] 261 |     Symbol(Symbol),
[INFO] [stdout]     |     ------ ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PatternKind` 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] 261 |     Symbol(()),
[INFO] [stdout]     |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VariantItem` is never constructed
[INFO] [stdout]    --> src/reifier/rst.rs:265:12
[INFO] [stdout]     |
[INFO] [stdout] 265 | pub struct VariantItem<'s> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VariantItem` 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 `main` and `defs` are never read
[INFO] [stdout]   --> src/lowerer/lir.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Module<'s> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 10 |     pub main: Option<Symbol>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 11 |     pub defs: FxHashMap<Symbol, Def<'s>>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Module` 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` and `value` are never read
[INFO] [stdout]   --> src/lowerer/lir.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Def<'s> {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] 16 |     pub name: Intern<'s>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 17 |     pub value: Value<'s>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Def` 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 `temps`, `params`, `blocks`, and `entry` are never read
[INFO] [stdout]   --> src/lowerer/lir.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Cfg {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] 22 |     pub temps: usize,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 23 |     pub params: Box<[Temp]>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 24 |     pub blocks: Box<[Block]>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 25 |     pub entry: BlockRef,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cfg` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TempInfo` is never constructed
[INFO] [stdout]   --> src/lowerer/lir.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct TempInfo {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TempInfo` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `successors` is never used
[INFO] [stdout]   --> src/lowerer/lir.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl<T> Block<T> {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] 48 |     pub fn successors(&self) -> impl Iterator<Item = &T> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `block` and `arguments` are never read
[INFO] [stdout]   --> src/lowerer/lir.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub struct Target {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 70 |     pub block: BlockRef,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 71 |     pub arguments: Box<[Temp]>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Target` 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 `0` and `1` are never read
[INFO] [stdout]   --> src/lowerer/lir.rs:93:10
[INFO] [stdout]    |
[INFO] [stdout] 93 |     Load(Temp, Producer),
[INFO] [stdout]    |     ---- ^^^^  ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Insn` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 93 |     Load((), ()),
[INFO] [stdout]    |          ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/lowerer/lir.rs:94:11
[INFO] [stdout]    |
[INFO] [stdout] 94 |     Store(MemRef, Temp),
[INFO] [stdout]    |     ----- ^^^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Insn` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 94 |     Store((), ()),
[INFO] [stdout]    |           ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]   --> src/lowerer/lir.rs:99:18
[INFO] [stdout]    |
[INFO] [stdout] 99 |     Memory(Kind, MemRef),
[INFO] [stdout]    |     ------       ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Producer` 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] 99 |     Memory(Kind, ()),
[INFO] [stdout]    |                  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]    --> src/lowerer/lir.rs:100:18
[INFO] [stdout]     |
[INFO] [stdout] 100 |     Symbol(Kind, Symbol),
[INFO] [stdout]     |     ------       ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Producer` 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] 100 |     Symbol(Kind, ()),
[INFO] [stdout]     |                  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lowerer/lir.rs:101:13
[INFO] [stdout]     |
[INFO] [stdout] 101 |     Builtin(Builtin),
[INFO] [stdout]     |     ------- ^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Producer` 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] 101 |     Builtin(()),
[INFO] [stdout]     |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lowerer/lir.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 |     Ir(Cfg),
[INFO] [stdout]     |     -- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Producer` 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] 102 |     Ir(()),
[INFO] [stdout]     |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `1` and `2` are never read
[INFO] [stdout]    --> src/lowerer/lir.rs:104:19
[INFO] [stdout]     |
[INFO] [stdout] 104 |     Binary(BinOp, Temp, Temp),
[INFO] [stdout]     |     ------        ^^^^  ^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Producer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 104 |     Binary(BinOp, (), ()),
[INFO] [stdout]     |                   ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]    --> src/lowerer/lir.rs:105:17
[INFO] [stdout]     |
[INFO] [stdout] 105 |     Unary(UnOp, Temp),
[INFO] [stdout]     |     -----       ^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Producer` 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] 105 |     Unary(UnOp, ()),
[INFO] [stdout]     |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/lowerer/lir.rs:106:10
[INFO] [stdout]     |
[INFO] [stdout] 106 |     Call(Temp, Box<[Temp]>, Kind),
[INFO] [stdout]     |     ---- ^^^^  ^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Producer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 106 |     Call((), (), Kind),
[INFO] [stdout]     |          ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lowerer/lir.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 |     ConstI(u64),
[INFO] [stdout]     |     ------ ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Producer` 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] 107 |     ConstI(()),
[INFO] [stdout]     |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lowerer/lir.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 |     ConstF(f64),
[INFO] [stdout]     |     ------ ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Producer` 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] 108 |     ConstF(()),
[INFO] [stdout]     |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Copy` is never constructed
[INFO] [stdout]    --> src/lowerer/lir.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 98  | pub enum Producer {
[INFO] [stdout]     |          -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 103 |     Copy(Temp),
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Producer` 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 `0` and `1` are never read
[INFO] [stdout]    --> src/lowerer/lir.rs:152:19
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub struct MemRef(pub Temp, pub u64);
[INFO] [stdout]     |            ------ ^^^^^^^^  ^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            fields in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing these fields
[INFO] [stdout]     = note: `MemRef` 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 `BitNotI` is never constructed
[INFO] [stdout]    --> src/lowerer/lir.rs:183:5
[INFO] [stdout]     |
[INFO] [stdout] 181 | pub enum UnOp {
[INFO] [stdout]     |          ---- variant in this enum
[INFO] [stdout] 182 |     BoolNotI,
[INFO] [stdout] 183 |     BitNotI,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `UnOp` 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/lowerer/lir.rs:218:14
[INFO] [stdout]     |
[INFO] [stdout] 218 |     Function(Cfg),
[INFO] [stdout]     |     -------- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Value` 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] 218 |     Function(()),
[INFO] [stdout]     |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Integer`, `Float`, `Tuple`, and `Variant` are never constructed
[INFO] [stdout]    --> src/lowerer/lir.rs:214:5
[INFO] [stdout]     |
[INFO] [stdout] 213 | pub enum Value<'s> {
[INFO] [stdout]     |          ----- variants in this enum
[INFO] [stdout] 214 |     Integer(i64),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 215 |     Float(f64),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 216 |     Tuple(Box<[Value<'s>]>),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 217 |     Variant(Intern<'s>, Option<Box<Value<'s>>>),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Value` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `optimize` is never used
[INFO] [stdout]  --> src/optimizers/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn optimize(module: &mut Module) {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `OptimizationPass` is never used
[INFO] [stdout]   --> src/optimizers/mod.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | trait OptimizationPass {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Simplify` is never constructed
[INFO] [stdout]  --> src/optimizers/simplify/mod.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Simplify {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `codegen` is never used
[INFO] [stdout]  --> src/backends/riscv/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn codegen(module: Module) -> Vec<u8> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RvCodegen` is never constructed
[INFO] [stdout]  --> src/backends/riscv/mod.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct RvCodegen {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `gen` is never used
[INFO] [stdout]   --> src/backends/riscv/mod.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl RvCodegen {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 14 |     fn gen(&mut self, cfg: Cfg) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RvInsn` is never used
[INFO] [stdout]   --> src/backends/riscv/mod.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 19 | enum RvInsn {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dominators` is never used
[INFO] [stdout]  --> src/backends/riscv/regalloc.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn dominators(cfg: &Cfg) -> Vec<Option<BlockRef>> {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `intersect` is never used
[INFO] [stdout]   --> src/backends/riscv/regalloc.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn intersect(labels: &Vec<usize>, doms: &mut [Option<BlockRef>], b1: BlockRef, b2: BlockRef) -> BlockRef {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dfs` is never used
[INFO] [stdout]   --> src/backends/riscv/regalloc.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn dfs(cfg: &Cfg, block: BlockRef, visited: &mut Vec<bool>, labels: &mut Vec<usize>, postorder: &mut Vec<BlockRef>, preds: &mut Vec<Vec<B...
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "0d43b7bff4a5dc2f509403408dba871d59740cdab369147d76bc77737c3a973b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d43b7bff4a5dc2f509403408dba871d59740cdab369147d76bc77737c3a973b", kill_on_drop: false }`
[INFO] [stdout] 0d43b7bff4a5dc2f509403408dba871d59740cdab369147d76bc77737c3a973b