[INFO] cloning repository https://github.com/psincf/xi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/psincf/xi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsincf%2Fxi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsincf%2Fxi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 013a96bdebac3f540370f276841f0a012ee63d34
[INFO] building psincf/xi 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%2Fpsincf%2Fxi" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/psincf/xi 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/psincf/xi
[INFO] finished tweaking git repo https://github.com/psincf/xi
[INFO] tweaked toml for git repo https://github.com/psincf/xi written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/psincf/xi 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 6e63d72f63267bc784a966a493149c6836f4f96fe9ed5b03e43089cc37840b00
[INFO] running `Command { std: "docker" "start" "-a" "6e63d72f63267bc784a966a493149c6836f4f96fe9ed5b03e43089cc37840b00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e63d72f63267bc784a966a493149c6836f4f96fe9ed5b03e43089cc37840b00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e63d72f63267bc784a966a493149c6836f4f96fe9ed5b03e43089cc37840b00", kill_on_drop: false }`
[INFO] [stdout] 6e63d72f63267bc784a966a493149c6836f4f96fe9ed5b03e43089cc37840b00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 47eb70a7449faa9dce7544e5057bab9fc7366fc8e1584c0bad3f18aa9408e974
[INFO] running `Command { std: "docker" "start" "-a" "47eb70a7449faa9dce7544e5057bab9fc7366fc8e1584c0bad3f18aa9408e974", kill_on_drop: false }`
[INFO] [stderr]    Compiling xi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `return` value
[INFO] [stdout]    --> src/sema/mod.rs:412:27
[INFO] [stdout]     |
[INFO] [stdout] 412 |                    return (sym_id)
[INFO] [stdout]     |                           ^      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 412 -                    return (sym_id)
[INFO] [stdout] 412 +                    return sym_id
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]   --> src/sema/sym_first_pass.rs:95:25
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let body = &fn_decl.body;
[INFO] [stdout]    |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_body`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/sema/sym_second_pass.rs:64:53
[INFO] [stdout]    |
[INFO] [stdout] 64 | ...                   Err(err) => panic!("Type {} not found", s)
[INFO] [stdout]    |                           ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_ty_kind` is never read
[INFO] [stdout]   --> src/sema/sym_second_pass.rs:88:41
[INFO] [stdout]    |
[INFO] [stdout] 88 | ...                   let mut new_ty_kind = params.ty.kind.clone();
[INFO] [stdout]    |                               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/sema/sym_second_pass.rs:106:53
[INFO] [stdout]     |
[INFO] [stdout] 106 | ...                   Err(err) => panic!("Type {} not found", n)
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lib`
[INFO] [stdout]    --> src/sema/sym_second_pass.rs:218:31
[INFO] [stdout]     |
[INFO] [stdout] 218 |                 Sym::External(lib, id) => {
[INFO] [stdout]     |                               ^^^ help: if this is intentional, prefix it with an underscore: `_lib`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/sema/sym_second_pass.rs:218:36
[INFO] [stdout]     |
[INFO] [stdout] 218 |                 Sym::External(lib, id) => {
[INFO] [stdout]     |                                    ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sema`
[INFO] [stdout]    --> src/sema/sym_second_pass.rs:232:23
[INFO] [stdout]     |
[INFO] [stdout] 232 | fn sema_check_dot_rhs(sema: &mut SemanticAnalizer, lhs: &Expr, expr: &parser::Expr) -> Expr {
[INFO] [stdout]     |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_sema`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]    --> src/sema/sym_second_pass.rs:232:52
[INFO] [stdout]     |
[INFO] [stdout] 232 | fn sema_check_dot_rhs(sema: &mut SemanticAnalizer, lhs: &Expr, expr: &parser::Expr) -> Expr {
[INFO] [stdout]     |                                                    ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lib`
[INFO] [stdout]    --> src/sema/mod.rs:385:43
[INFO] [stdout]     |
[INFO] [stdout] 385 | ...                   Sym::External(lib, id) => {
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_lib`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/sema/mod.rs:411:24
[INFO] [stdout]     |
[INFO] [stdout] 411 |             Sym::Value(v) => {
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sym_table`
[INFO] [stdout]    --> src/sema/mod.rs:419:13
[INFO] [stdout]     |
[INFO] [stdout] 419 |         let sym_table = &self.sym_tables[sym_table_id];
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sym_table`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cgen/c_gen.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let mut file = std::fs::File::create(options.out_path.clone() + options.bin_file_name.as_str()).unwrap();
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/parser.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub struct ModeDecl {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 61 |     name: String
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ModeDecl` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |     ModDecl(ModeDecl),
[INFO] [stdout]    |     ------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Statement` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 70 |     ModDecl(()),
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |     Int(i32),
[INFO] [stdout]    |     --- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Lit` has derived impls for the traits `Debug` and `Clone`, 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] 93 |     Int(()),
[INFO] [stdout]    |         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:94:11
[INFO] [stdout]    |
[INFO] [stdout] 94 |     Float(f32),
[INFO] [stdout]    |     ----- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Lit` has derived impls for the traits `Debug` and `Clone`, 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] 94 |     Float(()),
[INFO] [stdout]    |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     String(String)
[INFO] [stdout]    |     ------ ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Lit` has derived impls for the traits `Debug` and `Clone`, 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] 95 |     String(())
[INFO] [stdout]    |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ident` and `arguments` are never read
[INFO] [stdout]    --> src/parser.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 99  | pub struct FnCall {
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] 100 |     ident: Box<Expr>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 101 |     arguments: Vec<Expr>,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FnCall` has derived impls for the traits `Debug` and `Clone`, 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.rs:107:13
[INFO] [stdout]     |
[INFO] [stdout] 107 |     Literal(Lit),
[INFO] [stdout]     |     ------- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expr` has derived impls for the traits `Debug` and `Clone`, 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] 107 |     Literal(()),
[INFO] [stdout]     |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 |     FnCall(FnCall),
[INFO] [stdout]     |     ------ ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expr` has derived impls for the traits `Debug` and `Clone`, 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] 108 |     FnCall(()),
[INFO] [stdout]     |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Paren` is never constructed
[INFO] [stdout]    --> src/parser.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub enum Expr {
[INFO] [stdout]     |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 110 |     Paren(Box<Expr>),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expr` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Expr` is never constructed
[INFO] [stdout]    --> src/parser.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub enum Node {
[INFO] [stdout]     |          ---- variant in this enum
[INFO] [stdout] 115 |     Expr(Expr),
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Node` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `actual_token` and `next_nowh` are never used
[INFO] [stdout]    --> src/parser.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 126 | impl<'a> TokenIterator<'a> {
[INFO] [stdout]     | -------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 135 |     pub fn actual_token(&self) -> Token {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 159 |     pub fn next_nowh(&mut self) -> Option<Token> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `err` is never read
[INFO] [stdout]    --> src/parser.rs:203:5
[INFO] [stdout]     |
[INFO] [stdout] 200 | pub struct AstParser<'a> {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 203 |     err: Vec<String>
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/sema/mod.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Statement(Statement),
[INFO] [stdout]    |     --------- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has derived impls for the traits `Debug` and `Clone`, 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] 19 |     Statement(()),
[INFO] [stdout]    |               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Expr` is never constructed
[INFO] [stdout]   --> src/sema/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub enum Node {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] 18 |     Expr(Expr),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/sema/mod.rs:25:16
[INFO] [stdout]    |
[INFO] [stdout] 25 |     StructDecl(TyId),
[INFO] [stdout]    |     ---------- ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Statement` has derived impls for the traits `Debug` and `Clone`, 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] 25 |     StructDecl(()),
[INFO] [stdout]    |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/sema/mod.rs:26:14
[INFO] [stdout]    |
[INFO] [stdout] 26 |     EnumDecl(TyId),
[INFO] [stdout]    |     -------- ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Statement` has derived impls for the traits `Debug` and `Clone`, 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] 26 |     EnumDecl(()),
[INFO] [stdout]    |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/sema/mod.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     FnDecl(FnDecl),
[INFO] [stdout]    |     ------ ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Statement` has derived impls for the traits `Debug` and `Clone`, 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] 27 |     FnDecl(()),
[INFO] [stdout]    |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/sema/mod.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |     VarDecl(VarDecl),
[INFO] [stdout]    |     ------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Statement` has derived impls for the traits `Debug` and `Clone`, 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] 28 |     VarDecl(()),
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/sema/mod.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Expr(Expr)
[INFO] [stdout]    |     ---- ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Statement` has derived impls for the traits `Debug` and `Clone`, 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] 30 |     Expr(())
[INFO] [stdout]    |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `expr` are never read
[INFO] [stdout]   --> src/sema/mod.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct VarDecl {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 35 |     id: SymId,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 36 |     expr: Expr
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VarDecl` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `body` are never read
[INFO] [stdout]   --> src/sema/mod.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct FnDecl {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 41 |     id: SymId,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 42 |     body: Vec<Node>
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FnDecl` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Namespace` is never constructed
[INFO] [stdout]   --> src/sema/mod.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub enum Sym {
[INFO] [stdout]    |          --- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 49 |     Namespace(String),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Sym` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ident`, `mutable`, and `span` are never read
[INFO] [stdout]   --> src/sema/mod.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub struct Value {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 55 |     ident: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 56 |     mutable: bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 57 |     ty: Ty,
[INFO] [stdout] 58 |     span: Span,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `lhs`, `rhs`, and `operator` are never read
[INFO] [stdout]   --> src/sema/mod.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub struct Operation {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 87 |     lhs: Box<Expr>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 88 |     rhs: Box<Expr>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 89 |     operator: Operator
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Operation` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Int`, `Float`, and `String` are never constructed
[INFO] [stdout]   --> src/sema/mod.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub enum Lit {
[INFO] [stdout]    |          --- variants in this enum
[INFO] [stdout] 94 |     Int(i32),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 95 |     Float(f32),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 96 |     String(String)
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Lit` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ident` and `arguments` are never read
[INFO] [stdout]    --> src/sema/mod.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub struct FnCall {
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] 101 |     ident: Box<Expr>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 102 |     arguments: Vec<Expr>,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FnCall` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/sema/mod.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     Sym(SymId),
[INFO] [stdout]     |     --- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expr` has derived impls for the traits `Debug` and `Clone`, 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] 107 |     Sym(()),
[INFO] [stdout]     |         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/sema/mod.rs:110:15
[INFO] [stdout]     |
[INFO] [stdout] 110 |     Operation(Operation),
[INFO] [stdout]     |     --------- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expr` has derived impls for the traits `Debug` and `Clone`, 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] 110 |     Operation(()),
[INFO] [stdout]     |               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/sema/mod.rs:112:16
[INFO] [stdout]     |
[INFO] [stdout] 112 |     Unresolved(*const parser::Expr),
[INFO] [stdout]     |     ---------- ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expr` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 112 |     Unresolved(()),
[INFO] [stdout]     |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Literal`, `FnCall`, and `Paren` are never constructed
[INFO] [stdout]    --> src/sema/mod.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub enum Expr {
[INFO] [stdout]     |          ---- variants in this enum
[INFO] [stdout] 107 |     Sym(SymId),
[INFO] [stdout] 108 |     Literal(Lit),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 109 |     FnCall(FnCall),
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 110 |     Operation(Operation),
[INFO] [stdout] 111 |     Paren(Box<Expr>),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expr` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/sema/mod.rs:137:15
[INFO] [stdout]     |
[INFO] [stdout] 137 |     Primitive(Primitive),
[INFO] [stdout]     |     --------- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Tykind` has derived impls for the traits `Debug` and `Clone`, 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] 137 |     Primitive(()),
[INFO] [stdout]     |               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/sema/mod.rs:138:8
[INFO] [stdout]     |
[INFO] [stdout] 138 |     Id(TyId),
[INFO] [stdout]     |     -- ^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Tykind` has derived impls for the traits `Debug` and `Clone`, 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] 138 |     Id(()),
[INFO] [stdout]     |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/sema/mod.rs:153:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub struct Param {
[INFO] [stdout]     |            ----- field in this struct
[INFO] [stdout] 153 |     pub name: String,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Param` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/sema/mod.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 158 | pub struct StructTy {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] 159 |     pub path: String,
[INFO] [stdout] 160 |     pub name: String,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StructTy` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `variants` are never read
[INFO] [stdout]    --> src/sema/mod.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 165 | pub struct EnumTy {
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] 166 |     pub path: String,
[INFO] [stdout] 167 |     pub name: String,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 168 |     pub variants: Vec<EnumVariant>,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EnumTy` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `return_type` are never read
[INFO] [stdout]    --> src/sema/mod.rs:174:5
[INFO] [stdout]     |
[INFO] [stdout] 172 | pub struct FnTy {
[INFO] [stdout]     |            ---- fields in this struct
[INFO] [stdout] 173 |     pub path: String,
[INFO] [stdout] 174 |     name: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 175 |     parameters: Vec<Param>,
[INFO] [stdout] 176 |     return_type: Ty,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FnTy` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/sema/mod.rs:181:5
[INFO] [stdout]     |
[INFO] [stdout] 180 | pub struct StructField {
[INFO] [stdout]     |            ----------- field in this struct
[INFO] [stdout] 181 |     name: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StructField` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `ty` are never read
[INFO] [stdout]    --> src/sema/mod.rs:187:5
[INFO] [stdout]     |
[INFO] [stdout] 186 | pub struct EnumVariant {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] 187 |     name: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 188 |     ty: Option<Ty>,
[INFO] [stdout]     |     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EnumVariant` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]    --> src/sema/mod.rs:198:5
[INFO] [stdout]     |
[INFO] [stdout] 196 | pub struct SymTable {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] 197 |     isolated: bool,
[INFO] [stdout] 198 |     id: SymtableId,
[INFO] [stdout]     |     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SymTable` 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 `options` and `output_file` are never read
[INFO] [stdout]  --> src/cgen/c_gen.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct CCodeGenerator {
[INFO] [stdout]   |            -------------- fields in this struct
[INFO] [stdout] 7 |     options: CGeneratorOptions,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 8 |     output_file: std::fs::File,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `lex_tokens`, `ast`, and `file_path` are never read
[INFO] [stdout]   --> src/pipeline.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct Library {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 47 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 48 |     pub lex_tokens: Vec<Token>,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 49 |     pub ast: Option<Ast>,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 50 |     pub sema_ir: Option<SemaIr>,
[INFO] [stdout] 51 |     pub file_path: String,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/sema/mod.rs:299:13
[INFO] [stdout]     |
[INFO] [stdout] 299 |             drop(sym_table);
[INFO] [stdout]     |             ^^^^^---------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&mut SymTable`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 299 -             drop(sym_table);
[INFO] [stdout] 299 +             let _ = sym_table;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/pipeline.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |         std::fs::create_dir_all(self.options.location_debug_info.clone());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 209 |         let _ = std::fs::create_dir_all(self.options.location_debug_info.clone());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "47eb70a7449faa9dce7544e5057bab9fc7366fc8e1584c0bad3f18aa9408e974", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47eb70a7449faa9dce7544e5057bab9fc7366fc8e1584c0bad3f18aa9408e974", kill_on_drop: false }`
[INFO] [stdout] 47eb70a7449faa9dce7544e5057bab9fc7366fc8e1584c0bad3f18aa9408e974
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c016bbc56db2d8860126036974fed2f1376ef6c9caf957ebd2eb84a5818a6898
[INFO] running `Command { std: "docker" "start" "-a" "c016bbc56db2d8860126036974fed2f1376ef6c9caf957ebd2eb84a5818a6898", kill_on_drop: false }`
[INFO] [stderr]    Compiling xi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `return` value
[INFO] [stdout]    --> src/sema/mod.rs:412:27
[INFO] [stdout]     |
[INFO] [stdout] 412 |                    return (sym_id)
[INFO] [stdout]     |                           ^      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 412 -                    return (sym_id)
[INFO] [stdout] 412 +                    return sym_id
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]   --> src/sema/sym_first_pass.rs:95:25
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let body = &fn_decl.body;
[INFO] [stdout]    |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_body`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/sema/sym_second_pass.rs:64:53
[INFO] [stdout]    |
[INFO] [stdout] 64 | ...                   Err(err) => panic!("Type {} not found", s)
[INFO] [stdout]    |                           ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_ty_kind` is never read
[INFO] [stdout]   --> src/sema/sym_second_pass.rs:88:41
[INFO] [stdout]    |
[INFO] [stdout] 88 | ...                   let mut new_ty_kind = params.ty.kind.clone();
[INFO] [stdout]    |                               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/sema/sym_second_pass.rs:106:53
[INFO] [stdout]     |
[INFO] [stdout] 106 | ...                   Err(err) => panic!("Type {} not found", n)
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lib`
[INFO] [stdout]    --> src/sema/sym_second_pass.rs:218:31
[INFO] [stdout]     |
[INFO] [stdout] 218 |                 Sym::External(lib, id) => {
[INFO] [stdout]     |                               ^^^ help: if this is intentional, prefix it with an underscore: `_lib`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/sema/sym_second_pass.rs:218:36
[INFO] [stdout]     |
[INFO] [stdout] 218 |                 Sym::External(lib, id) => {
[INFO] [stdout]     |                                    ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sema`
[INFO] [stdout]    --> src/sema/sym_second_pass.rs:232:23
[INFO] [stdout]     |
[INFO] [stdout] 232 | fn sema_check_dot_rhs(sema: &mut SemanticAnalizer, lhs: &Expr, expr: &parser::Expr) -> Expr {
[INFO] [stdout]     |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_sema`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]    --> src/sema/sym_second_pass.rs:232:52
[INFO] [stdout]     |
[INFO] [stdout] 232 | fn sema_check_dot_rhs(sema: &mut SemanticAnalizer, lhs: &Expr, expr: &parser::Expr) -> Expr {
[INFO] [stdout]     |                                                    ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lib`
[INFO] [stdout]    --> src/sema/mod.rs:385:43
[INFO] [stdout]     |
[INFO] [stdout] 385 | ...                   Sym::External(lib, id) => {
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_lib`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/sema/mod.rs:411:24
[INFO] [stdout]     |
[INFO] [stdout] 411 |             Sym::Value(v) => {
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sym_table`
[INFO] [stdout]    --> src/sema/mod.rs:419:13
[INFO] [stdout]     |
[INFO] [stdout] 419 |         let sym_table = &self.sym_tables[sym_table_id];
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sym_table`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cgen/c_gen.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let mut file = std::fs::File::create(options.out_path.clone() + options.bin_file_name.as_str()).unwrap();
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/parser.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub struct ModeDecl {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 61 |     name: String
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ModeDecl` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |     ModDecl(ModeDecl),
[INFO] [stdout]    |     ------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Statement` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 70 |     ModDecl(()),
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |     Int(i32),
[INFO] [stdout]    |     --- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Lit` has derived impls for the traits `Debug` and `Clone`, 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] 93 |     Int(()),
[INFO] [stdout]    |         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:94:11
[INFO] [stdout]    |
[INFO] [stdout] 94 |     Float(f32),
[INFO] [stdout]    |     ----- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Lit` has derived impls for the traits `Debug` and `Clone`, 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] 94 |     Float(()),
[INFO] [stdout]    |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     String(String)
[INFO] [stdout]    |     ------ ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Lit` has derived impls for the traits `Debug` and `Clone`, 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] 95 |     String(())
[INFO] [stdout]    |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ident` and `arguments` are never read
[INFO] [stdout]    --> src/parser.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 99  | pub struct FnCall {
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] 100 |     ident: Box<Expr>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 101 |     arguments: Vec<Expr>,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FnCall` has derived impls for the traits `Debug` and `Clone`, 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.rs:107:13
[INFO] [stdout]     |
[INFO] [stdout] 107 |     Literal(Lit),
[INFO] [stdout]     |     ------- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expr` has derived impls for the traits `Debug` and `Clone`, 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] 107 |     Literal(()),
[INFO] [stdout]     |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 |     FnCall(FnCall),
[INFO] [stdout]     |     ------ ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expr` has derived impls for the traits `Debug` and `Clone`, 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] 108 |     FnCall(()),
[INFO] [stdout]     |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Paren` is never constructed
[INFO] [stdout]    --> src/parser.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub enum Expr {
[INFO] [stdout]     |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 110 |     Paren(Box<Expr>),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expr` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Expr` is never constructed
[INFO] [stdout]    --> src/parser.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub enum Node {
[INFO] [stdout]     |          ---- variant in this enum
[INFO] [stdout] 115 |     Expr(Expr),
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Node` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `actual_token` and `next_nowh` are never used
[INFO] [stdout]    --> src/parser.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 126 | impl<'a> TokenIterator<'a> {
[INFO] [stdout]     | -------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 135 |     pub fn actual_token(&self) -> Token {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 159 |     pub fn next_nowh(&mut self) -> Option<Token> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `err` is never read
[INFO] [stdout]    --> src/parser.rs:203:5
[INFO] [stdout]     |
[INFO] [stdout] 200 | pub struct AstParser<'a> {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 203 |     err: Vec<String>
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/sema/mod.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Statement(Statement),
[INFO] [stdout]    |     --------- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has derived impls for the traits `Debug` and `Clone`, 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] 19 |     Statement(()),
[INFO] [stdout]    |               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Expr` is never constructed
[INFO] [stdout]   --> src/sema/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub enum Node {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] 18 |     Expr(Expr),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/sema/mod.rs:25:16
[INFO] [stdout]    |
[INFO] [stdout] 25 |     StructDecl(TyId),
[INFO] [stdout]    |     ---------- ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Statement` has derived impls for the traits `Debug` and `Clone`, 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] 25 |     StructDecl(()),
[INFO] [stdout]    |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/sema/mod.rs:26:14
[INFO] [stdout]    |
[INFO] [stdout] 26 |     EnumDecl(TyId),
[INFO] [stdout]    |     -------- ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Statement` has derived impls for the traits `Debug` and `Clone`, 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] 26 |     EnumDecl(()),
[INFO] [stdout]    |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/sema/mod.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     FnDecl(FnDecl),
[INFO] [stdout]    |     ------ ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Statement` has derived impls for the traits `Debug` and `Clone`, 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] 27 |     FnDecl(()),
[INFO] [stdout]    |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/sema/mod.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |     VarDecl(VarDecl),
[INFO] [stdout]    |     ------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Statement` has derived impls for the traits `Debug` and `Clone`, 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] 28 |     VarDecl(()),
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/sema/mod.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Expr(Expr)
[INFO] [stdout]    |     ---- ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Statement` has derived impls for the traits `Debug` and `Clone`, 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] 30 |     Expr(())
[INFO] [stdout]    |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `expr` are never read
[INFO] [stdout]   --> src/sema/mod.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct VarDecl {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 35 |     id: SymId,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 36 |     expr: Expr
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VarDecl` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `body` are never read
[INFO] [stdout]   --> src/sema/mod.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct FnDecl {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 41 |     id: SymId,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 42 |     body: Vec<Node>
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FnDecl` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Namespace` is never constructed
[INFO] [stdout]   --> src/sema/mod.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub enum Sym {
[INFO] [stdout]    |          --- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 49 |     Namespace(String),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Sym` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ident`, `mutable`, and `span` are never read
[INFO] [stdout]   --> src/sema/mod.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub struct Value {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 55 |     ident: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 56 |     mutable: bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 57 |     ty: Ty,
[INFO] [stdout] 58 |     span: Span,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `lhs`, `rhs`, and `operator` are never read
[INFO] [stdout]   --> src/sema/mod.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub struct Operation {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 87 |     lhs: Box<Expr>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 88 |     rhs: Box<Expr>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 89 |     operator: Operator
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Operation` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Int`, `Float`, and `String` are never constructed
[INFO] [stdout]   --> src/sema/mod.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub enum Lit {
[INFO] [stdout]    |          --- variants in this enum
[INFO] [stdout] 94 |     Int(i32),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 95 |     Float(f32),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 96 |     String(String)
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Lit` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ident` and `arguments` are never read
[INFO] [stdout]    --> src/sema/mod.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub struct FnCall {
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] 101 |     ident: Box<Expr>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 102 |     arguments: Vec<Expr>,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FnCall` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/sema/mod.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     Sym(SymId),
[INFO] [stdout]     |     --- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expr` has derived impls for the traits `Debug` and `Clone`, 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] 107 |     Sym(()),
[INFO] [stdout]     |         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/sema/mod.rs:110:15
[INFO] [stdout]     |
[INFO] [stdout] 110 |     Operation(Operation),
[INFO] [stdout]     |     --------- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expr` has derived impls for the traits `Debug` and `Clone`, 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] 110 |     Operation(()),
[INFO] [stdout]     |               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/sema/mod.rs:112:16
[INFO] [stdout]     |
[INFO] [stdout] 112 |     Unresolved(*const parser::Expr),
[INFO] [stdout]     |     ---------- ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expr` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 112 |     Unresolved(()),
[INFO] [stdout]     |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Literal`, `FnCall`, and `Paren` are never constructed
[INFO] [stdout]    --> src/sema/mod.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub enum Expr {
[INFO] [stdout]     |          ---- variants in this enum
[INFO] [stdout] 107 |     Sym(SymId),
[INFO] [stdout] 108 |     Literal(Lit),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 109 |     FnCall(FnCall),
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 110 |     Operation(Operation),
[INFO] [stdout] 111 |     Paren(Box<Expr>),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expr` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/sema/mod.rs:137:15
[INFO] [stdout]     |
[INFO] [stdout] 137 |     Primitive(Primitive),
[INFO] [stdout]     |     --------- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Tykind` has derived impls for the traits `Debug` and `Clone`, 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] 137 |     Primitive(()),
[INFO] [stdout]     |               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/sema/mod.rs:138:8
[INFO] [stdout]     |
[INFO] [stdout] 138 |     Id(TyId),
[INFO] [stdout]     |     -- ^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Tykind` has derived impls for the traits `Debug` and `Clone`, 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] 138 |     Id(()),
[INFO] [stdout]     |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/sema/mod.rs:153:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub struct Param {
[INFO] [stdout]     |            ----- field in this struct
[INFO] [stdout] 153 |     pub name: String,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Param` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/sema/mod.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 158 | pub struct StructTy {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] 159 |     pub path: String,
[INFO] [stdout] 160 |     pub name: String,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StructTy` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `variants` are never read
[INFO] [stdout]    --> src/sema/mod.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 165 | pub struct EnumTy {
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] 166 |     pub path: String,
[INFO] [stdout] 167 |     pub name: String,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 168 |     pub variants: Vec<EnumVariant>,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EnumTy` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `return_type` are never read
[INFO] [stdout]    --> src/sema/mod.rs:174:5
[INFO] [stdout]     |
[INFO] [stdout] 172 | pub struct FnTy {
[INFO] [stdout]     |            ---- fields in this struct
[INFO] [stdout] 173 |     pub path: String,
[INFO] [stdout] 174 |     name: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 175 |     parameters: Vec<Param>,
[INFO] [stdout] 176 |     return_type: Ty,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FnTy` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/sema/mod.rs:181:5
[INFO] [stdout]     |
[INFO] [stdout] 180 | pub struct StructField {
[INFO] [stdout]     |            ----------- field in this struct
[INFO] [stdout] 181 |     name: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StructField` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `ty` are never read
[INFO] [stdout]    --> src/sema/mod.rs:187:5
[INFO] [stdout]     |
[INFO] [stdout] 186 | pub struct EnumVariant {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] 187 |     name: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 188 |     ty: Option<Ty>,
[INFO] [stdout]     |     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EnumVariant` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]    --> src/sema/mod.rs:198:5
[INFO] [stdout]     |
[INFO] [stdout] 196 | pub struct SymTable {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] 197 |     isolated: bool,
[INFO] [stdout] 198 |     id: SymtableId,
[INFO] [stdout]     |     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SymTable` 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 `options` and `output_file` are never read
[INFO] [stdout]  --> src/cgen/c_gen.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct CCodeGenerator {
[INFO] [stdout]   |            -------------- fields in this struct
[INFO] [stdout] 7 |     options: CGeneratorOptions,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 8 |     output_file: std::fs::File,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `lex_tokens`, `ast`, and `file_path` are never read
[INFO] [stdout]   --> src/pipeline.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct Library {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 47 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 48 |     pub lex_tokens: Vec<Token>,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 49 |     pub ast: Option<Ast>,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 50 |     pub sema_ir: Option<SemaIr>,
[INFO] [stdout] 51 |     pub file_path: String,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/sema/mod.rs:299:13
[INFO] [stdout]     |
[INFO] [stdout] 299 |             drop(sym_table);
[INFO] [stdout]     |             ^^^^^---------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&mut SymTable`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 299 -             drop(sym_table);
[INFO] [stdout] 299 +             let _ = sym_table;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/pipeline.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |         std::fs::create_dir_all(self.options.location_debug_info.clone());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 209 |         let _ = std::fs::create_dir_all(self.options.location_debug_info.clone());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "c016bbc56db2d8860126036974fed2f1376ef6c9caf957ebd2eb84a5818a6898", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c016bbc56db2d8860126036974fed2f1376ef6c9caf957ebd2eb84a5818a6898", kill_on_drop: false }`
[INFO] [stdout] c016bbc56db2d8860126036974fed2f1376ef6c9caf957ebd2eb84a5818a6898