[INFO] cloning repository https://github.com/Gokborg/somlang-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Gokborg/somlang-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGokborg%2Fsomlang-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGokborg%2Fsomlang-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e476fc27f8d0990a95a9d32d3589d91e9b42b650
[INFO] building Gokborg/somlang-rs 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%2FGokborg%2Fsomlang-rs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Gokborg/somlang-rs 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/Gokborg/somlang-rs
[INFO] finished tweaking git repo https://github.com/Gokborg/somlang-rs
[INFO] tweaked toml for git repo https://github.com/Gokborg/somlang-rs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Gokborg/somlang-rs 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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6c0f2fecb600d1d7065be15939b7d24b37c81e7b89213dedd10c191c33734871
[INFO] running `Command { std: "docker" "start" "-a" "6c0f2fecb600d1d7065be15939b7d24b37c81e7b89213dedd10c191c33734871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c0f2fecb600d1d7065be15939b7d24b37c81e7b89213dedd10c191c33734871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c0f2fecb600d1d7065be15939b7d24b37c81e7b89213dedd10c191c33734871", kill_on_drop: false }`
[INFO] [stdout] 6c0f2fecb600d1d7065be15939b7d24b37c81e7b89213dedd10c191c33734871
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 849aeac1f581b803230cdd740a0ae5b9909d981994675bfd3fe0f7149e130161
[INFO] running `Command { std: "docker" "start" "-a" "849aeac1f581b803230cdd740a0ae5b9909d981994675bfd3fe0f7149e130161", kill_on_drop: false }`
[INFO] [stderr]    Compiling somelang-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::parsers`
[INFO] [stdout]  --> src/parser.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::parsers;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fs::File` and `path::Path`
[INFO] [stdout]   --> src/codegen/asm.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::{fs::File, path::Path};
[INFO] [stdout]    |           ^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `span`
[INFO] [stdout]  --> src/codegen/mod.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::{ast, span};
[INFO] [stdout]   |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `errorcontext::Error`
[INFO] [stdout]  --> src/typechecking/scope.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{span::Span, errorcontext::Error};
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `typechecking::TypeChecker`
[INFO] [stdout]   --> src/main.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::{typechecking::TypeChecker, errorcontext::ErrorContext};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/astprinter.rs:27:38
[INFO] [stdout]    |
[INFO] [stdout] 27 |         ast::Statement::Assignment { span, target, expr } => {
[INFO] [stdout]    |                                      ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/astprinter.rs:52:32
[INFO] [stdout]    |
[INFO] [stdout] 52 |         ast::Statement::Expr { span, expr } => {
[INFO] [stdout]    |                                ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_reg`
[INFO] [stdout]   --> src/codegen/allocator.rs:69:29
[INFO] [stdout]    |
[INFO] [stdout] 69 |                 if let Some(var_reg) = varrecord.get(varname) {
[INFO] [stdout]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_reg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mem_alloc`
[INFO] [stdout]   --> src/codegen/allocator.rs:92:34
[INFO] [stdout]    |
[INFO] [stdout] 92 |                 else if let Some(mem_alloc) = self.mem_allocs.get(varname) {
[INFO] [stdout]    |                                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mem_alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reg_alloc`
[INFO] [stdout]    --> src/codegen/allocator.rs:124:21
[INFO] [stdout]     |
[INFO] [stdout] 124 |         if let Some(reg_alloc) = self.reg_allocs.get_mut(&lineno) {
[INFO] [stdout]     |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reg_alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/codegen/allocator.rs:185:21
[INFO] [stdout]     |
[INFO] [stdout] 185 |                 let mut lineno_regalloc: &mut RegisterAllocator;
[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: unused variable: `span`
[INFO] [stdout]    --> src/codegen/allocator.rs:331:45
[INFO] [stdout]     |
[INFO] [stdout] 331 |             ast::Statement::Body { content, span } => {
[INFO] [stdout]     |                                             ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/codegen/rustcompile.rs:63:36
[INFO] [stdout]    |
[INFO] [stdout] 63 |             ast::Statement::Expr { span, expr } => {
[INFO] [stdout]    |                                    ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vartype`
[INFO] [stdout]   --> src/codegen/mod.rs:33:48
[INFO] [stdout]    |
[INFO] [stdout] 33 |             ast::Statement::Declaration {span, vartype, target, expr } => {
[INFO] [stdout]    |                                                ^^^^^^^ help: try ignoring the field: `vartype: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/codegen/mod.rs:48:45
[INFO] [stdout]    |
[INFO] [stdout] 48 |             ast::Statement::Body { content, span } => self.gen_body(content),
[INFO] [stdout]    |                                             ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/codegen/mod.rs:50:36
[INFO] [stdout]    |
[INFO] [stdout] 50 |             ast::Statement::Expr { span, expr } => {self.gen_expr(expr, Some(0));},
[INFO] [stdout]    |                                    ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/codegen/mod.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |         if let Some(c) = &*unbox_child {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/codegen/mod.rs:77:21
[INFO] [stdout]    |
[INFO] [stdout] 77 |         if let Some(s) = &*unbox_child {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> src/codegen/mod.rs:113:39
[INFO] [stdout]     |
[INFO] [stdout] 113 |             ast::Expression::BinaryOp(span, expr1, op, expr2) => {
[INFO] [stdout]     |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/typechecking/scope.rs:16:27
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn put(&mut self, name: &str, kind: Type, span: Span) {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kind`
[INFO] [stdout]   --> src/typechecking/scope.rs:16:39
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn put(&mut self, name: &str, kind: Type, span: Span) {
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_kind`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/typechecking/scope.rs:16:51
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn put(&mut self, name: &str, kind: Type, span: Span) {
[INFO] [stdout]    |                                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/typechecking/mod.rs:25:43
[INFO] [stdout]    |
[INFO] [stdout] 25 |             ast::Statement::Declaration { span, vartype, target: name, expr } => todo!(),
[INFO] [stdout]    |                                           ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vartype`
[INFO] [stdout]   --> src/typechecking/mod.rs:25:49
[INFO] [stdout]    |
[INFO] [stdout] 25 |             ast::Statement::Declaration { span, vartype, target: name, expr } => todo!(),
[INFO] [stdout]    |                                                 ^^^^^^^ help: try ignoring the field: `vartype: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/typechecking/mod.rs:25:66
[INFO] [stdout]    |
[INFO] [stdout] 25 |             ast::Statement::Declaration { span, vartype, target: name, expr } => todo!(),
[INFO] [stdout]    |                                                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/typechecking/mod.rs:25:72
[INFO] [stdout]    |
[INFO] [stdout] 25 |             ast::Statement::Declaration { span, vartype, target: name, expr } => todo!(),
[INFO] [stdout]    |                                                                        ^^^^ help: try ignoring the field: `expr: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `content`
[INFO] [stdout]   --> src/typechecking/mod.rs:26:36
[INFO] [stdout]    |
[INFO] [stdout] 26 |             ast::Statement::Body { content, span } => todo!(),
[INFO] [stdout]    |                                    ^^^^^^^ help: try ignoring the field: `content: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/typechecking/mod.rs:26:45
[INFO] [stdout]    |
[INFO] [stdout] 26 |             ast::Statement::Body { content, span } => todo!(),
[INFO] [stdout]    |                                             ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cond`
[INFO] [stdout]   --> src/typechecking/mod.rs:27:43
[INFO] [stdout]    |
[INFO] [stdout] 27 |             ast::Statement::IfStatement { cond, body, child, span } => todo!(),
[INFO] [stdout]    |                                           ^^^^ help: try ignoring the field: `cond: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]   --> src/typechecking/mod.rs:27:49
[INFO] [stdout]    |
[INFO] [stdout] 27 |             ast::Statement::IfStatement { cond, body, child, span } => todo!(),
[INFO] [stdout]    |                                                 ^^^^ help: try ignoring the field: `body: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `child`
[INFO] [stdout]   --> src/typechecking/mod.rs:27:55
[INFO] [stdout]    |
[INFO] [stdout] 27 |             ast::Statement::IfStatement { cond, body, child, span } => todo!(),
[INFO] [stdout]    |                                                       ^^^^^ help: try ignoring the field: `child: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/typechecking/mod.rs:27:62
[INFO] [stdout]    |
[INFO] [stdout] 27 |             ast::Statement::IfStatement { cond, body, child, span } => todo!(),
[INFO] [stdout]    |                                                              ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/typechecking/mod.rs:28:42
[INFO] [stdout]    |
[INFO] [stdout] 28 |             ast::Statement::Assignment { span, target, expr } => todo!(),
[INFO] [stdout]    |                                          ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]   --> src/typechecking/mod.rs:28:48
[INFO] [stdout]    |
[INFO] [stdout] 28 |             ast::Statement::Assignment { span, target, expr } => todo!(),
[INFO] [stdout]    |                                                ^^^^^^ help: try ignoring the field: `target: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/typechecking/mod.rs:28:56
[INFO] [stdout]    |
[INFO] [stdout] 28 |             ast::Statement::Assignment { span, target, expr } => todo!(),
[INFO] [stdout]    |                                                        ^^^^ help: try ignoring the field: `expr: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/typechecking/mod.rs:29:36
[INFO] [stdout]    |
[INFO] [stdout] 29 |             ast::Statement::Expr { span, expr } => todo!(),
[INFO] [stdout]    |                                    ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/typechecking/mod.rs:29:42
[INFO] [stdout]    |
[INFO] [stdout] 29 |             ast::Statement::Expr { span, expr } => todo!(),
[INFO] [stdout]    |                                          ^^^^ help: try ignoring the field: `expr: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error_context`
[INFO] [stdout]   --> src/main.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut error_context = ErrorContext::new();
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_error_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut error_context = ErrorContext::new();
[INFO] [stdout]    |         ----^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `start_loc` and `end_loc` are never used
[INFO] [stdout]   --> src/token.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl Token {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] 40 |     pub fn start_loc(&self) ->Loc {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn end_loc(&self) ->Loc {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Array`, `Pointer`, and `Func` are never constructed
[INFO] [stdout]   --> src/ast.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub enum VarType {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] 18 |     Normal(Span, String),
[INFO] [stdout] 19 |     Array(Span, Box<VarType>, Option<usize>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     Pointer(Span, Box<VarType>),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 21 |     Func(Span, Box<VarType>, Vec<ArgDecl>)
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VarType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `span`, `name`, and `kind` are never read
[INFO] [stdout]   --> src/ast.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct ArgDecl {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 26 |     pub span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 27 |     pub name: Identifier,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 28 |     pub kind: VarType
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ArgDecl` 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 `end` is never read
[INFO] [stdout]  --> src/span.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Span {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 5 |     pub start: Loc,
[INFO] [stdout] 6 |     pub end: Loc,
[INFO] [stdout]   |         ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Span` 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: associated items `new` and `end` are never used
[INFO] [stdout]   --> src/span.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Span {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn new(start: Loc, end: Loc) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn end(&self) -> Loc {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `col` is never read
[INFO] [stdout]   --> src/span.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct Loc {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 36 |     pub lineno: u32,
[INFO] [stdout] 37 |     pub col: u32,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Loc` 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 `span` is never used
[INFO] [stdout]   --> src/span.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub trait GetSpan {
[INFO] [stdout]    |           ------- method in this trait
[INFO] [stdout] 41 |     fn span(&self) -> &Span;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `errors` is never read
[INFO] [stdout]  --> src/errorcontext.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct ErrorContext {
[INFO] [stdout]   |            ------------ field in this struct
[INFO] [stdout] 5 |     errors: Vec<Error>
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ErrorContext` 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 `UndefinedVariable` and `UnexpectedToken` are never constructed
[INFO] [stdout]   --> src/errorcontext.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum ErrorKind {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] 16 |     UndefinedVariable,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 17 |     UnexpectedToken,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ErrorKind` 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 `kind`, `filename`, and `span` are never read
[INFO] [stdout]   --> src/errorcontext.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Error {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 22 |     kind: ErrorKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 23 |     filename: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 24 |     span: Span
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` 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 `TypeChecker` is never constructed
[INFO] [stdout]  --> src/typechecking/mod.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct TypeChecker<'a> {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TypeChecker` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `check`, `check_body`, and `check_statement` are never used
[INFO] [stdout]   --> src/typechecking/mod.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl <'a> TypeChecker<'a> {
[INFO] [stdout]    | ------------------------- associated items in this implementation
[INFO] [stdout] 11 |     pub fn check(err: &'a mut ErrorContext, statements: &[ast::Statement]) -> Self {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn check_body(&mut self, statements: &[ast::Statement]) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn check_statement(&mut self, statement: &ast::Statement) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Scopes` is never constructed
[INFO] [stdout]  --> src/typechecking/scope.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Scopes {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `put` are never used
[INFO] [stdout]   --> src/typechecking/scope.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Scopes {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 12 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn put(&mut self, name: &str, kind: Type, span: Span) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Scope` is never constructed
[INFO] [stdout]   --> src/typechecking/scope.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct Scope {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/typechecking/scope.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Scope {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 26 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Variable` is never constructed
[INFO] [stdout]   --> src/typechecking/scope.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct Variable {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Type` is never used
[INFO] [stdout]  --> src/typechecking/types.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Type {
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "849aeac1f581b803230cdd740a0ae5b9909d981994675bfd3fe0f7149e130161", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "849aeac1f581b803230cdd740a0ae5b9909d981994675bfd3fe0f7149e130161", kill_on_drop: false }`
[INFO] [stdout] 849aeac1f581b803230cdd740a0ae5b9909d981994675bfd3fe0f7149e130161
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ad7d6e2e3f338fc0f93b7e004ae407680d3ee4b39029c69cc6a697e2ca7ec27d
[INFO] running `Command { std: "docker" "start" "-a" "ad7d6e2e3f338fc0f93b7e004ae407680d3ee4b39029c69cc6a697e2ca7ec27d", kill_on_drop: false }`
[INFO] [stderr]    Compiling somelang-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::parsers`
[INFO] [stdout]  --> src/parser.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::parsers;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fs::File` and `path::Path`
[INFO] [stdout]   --> src/codegen/asm.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::{fs::File, path::Path};
[INFO] [stdout]    |           ^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `span`
[INFO] [stdout]  --> src/codegen/mod.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::{ast, span};
[INFO] [stdout]   |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `errorcontext::Error`
[INFO] [stdout]  --> src/typechecking/scope.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{span::Span, errorcontext::Error};
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `typechecking::TypeChecker`
[INFO] [stdout]   --> src/main.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::{typechecking::TypeChecker, errorcontext::ErrorContext};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/astprinter.rs:27:38
[INFO] [stdout]    |
[INFO] [stdout] 27 |         ast::Statement::Assignment { span, target, expr } => {
[INFO] [stdout]    |                                      ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/astprinter.rs:52:32
[INFO] [stdout]    |
[INFO] [stdout] 52 |         ast::Statement::Expr { span, expr } => {
[INFO] [stdout]    |                                ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_reg`
[INFO] [stdout]   --> src/codegen/allocator.rs:69:29
[INFO] [stdout]    |
[INFO] [stdout] 69 |                 if let Some(var_reg) = varrecord.get(varname) {
[INFO] [stdout]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_reg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mem_alloc`
[INFO] [stdout]   --> src/codegen/allocator.rs:92:34
[INFO] [stdout]    |
[INFO] [stdout] 92 |                 else if let Some(mem_alloc) = self.mem_allocs.get(varname) {
[INFO] [stdout]    |                                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mem_alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reg_alloc`
[INFO] [stdout]    --> src/codegen/allocator.rs:124:21
[INFO] [stdout]     |
[INFO] [stdout] 124 |         if let Some(reg_alloc) = self.reg_allocs.get_mut(&lineno) {
[INFO] [stdout]     |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reg_alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/codegen/allocator.rs:185:21
[INFO] [stdout]     |
[INFO] [stdout] 185 |                 let mut lineno_regalloc: &mut RegisterAllocator;
[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: unused variable: `span`
[INFO] [stdout]    --> src/codegen/allocator.rs:331:45
[INFO] [stdout]     |
[INFO] [stdout] 331 |             ast::Statement::Body { content, span } => {
[INFO] [stdout]     |                                             ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/codegen/rustcompile.rs:63:36
[INFO] [stdout]    |
[INFO] [stdout] 63 |             ast::Statement::Expr { span, expr } => {
[INFO] [stdout]    |                                    ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vartype`
[INFO] [stdout]   --> src/codegen/mod.rs:33:48
[INFO] [stdout]    |
[INFO] [stdout] 33 |             ast::Statement::Declaration {span, vartype, target, expr } => {
[INFO] [stdout]    |                                                ^^^^^^^ help: try ignoring the field: `vartype: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/codegen/mod.rs:48:45
[INFO] [stdout]    |
[INFO] [stdout] 48 |             ast::Statement::Body { content, span } => self.gen_body(content),
[INFO] [stdout]    |                                             ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/codegen/mod.rs:50:36
[INFO] [stdout]    |
[INFO] [stdout] 50 |             ast::Statement::Expr { span, expr } => {self.gen_expr(expr, Some(0));},
[INFO] [stdout]    |                                    ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/codegen/mod.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |         if let Some(c) = &*unbox_child {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/codegen/mod.rs:77:21
[INFO] [stdout]    |
[INFO] [stdout] 77 |         if let Some(s) = &*unbox_child {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> src/codegen/mod.rs:113:39
[INFO] [stdout]     |
[INFO] [stdout] 113 |             ast::Expression::BinaryOp(span, expr1, op, expr2) => {
[INFO] [stdout]     |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/typechecking/scope.rs:16:27
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn put(&mut self, name: &str, kind: Type, span: Span) {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kind`
[INFO] [stdout]   --> src/typechecking/scope.rs:16:39
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn put(&mut self, name: &str, kind: Type, span: Span) {
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_kind`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/typechecking/scope.rs:16:51
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn put(&mut self, name: &str, kind: Type, span: Span) {
[INFO] [stdout]    |                                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/typechecking/mod.rs:25:43
[INFO] [stdout]    |
[INFO] [stdout] 25 |             ast::Statement::Declaration { span, vartype, target: name, expr } => todo!(),
[INFO] [stdout]    |                                           ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vartype`
[INFO] [stdout]   --> src/typechecking/mod.rs:25:49
[INFO] [stdout]    |
[INFO] [stdout] 25 |             ast::Statement::Declaration { span, vartype, target: name, expr } => todo!(),
[INFO] [stdout]    |                                                 ^^^^^^^ help: try ignoring the field: `vartype: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/typechecking/mod.rs:25:66
[INFO] [stdout]    |
[INFO] [stdout] 25 |             ast::Statement::Declaration { span, vartype, target: name, expr } => todo!(),
[INFO] [stdout]    |                                                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/typechecking/mod.rs:25:72
[INFO] [stdout]    |
[INFO] [stdout] 25 |             ast::Statement::Declaration { span, vartype, target: name, expr } => todo!(),
[INFO] [stdout]    |                                                                        ^^^^ help: try ignoring the field: `expr: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `content`
[INFO] [stdout]   --> src/typechecking/mod.rs:26:36
[INFO] [stdout]    |
[INFO] [stdout] 26 |             ast::Statement::Body { content, span } => todo!(),
[INFO] [stdout]    |                                    ^^^^^^^ help: try ignoring the field: `content: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/typechecking/mod.rs:26:45
[INFO] [stdout]    |
[INFO] [stdout] 26 |             ast::Statement::Body { content, span } => todo!(),
[INFO] [stdout]    |                                             ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cond`
[INFO] [stdout]   --> src/typechecking/mod.rs:27:43
[INFO] [stdout]    |
[INFO] [stdout] 27 |             ast::Statement::IfStatement { cond, body, child, span } => todo!(),
[INFO] [stdout]    |                                           ^^^^ help: try ignoring the field: `cond: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]   --> src/typechecking/mod.rs:27:49
[INFO] [stdout]    |
[INFO] [stdout] 27 |             ast::Statement::IfStatement { cond, body, child, span } => todo!(),
[INFO] [stdout]    |                                                 ^^^^ help: try ignoring the field: `body: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `child`
[INFO] [stdout]   --> src/typechecking/mod.rs:27:55
[INFO] [stdout]    |
[INFO] [stdout] 27 |             ast::Statement::IfStatement { cond, body, child, span } => todo!(),
[INFO] [stdout]    |                                                       ^^^^^ help: try ignoring the field: `child: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/typechecking/mod.rs:27:62
[INFO] [stdout]    |
[INFO] [stdout] 27 |             ast::Statement::IfStatement { cond, body, child, span } => todo!(),
[INFO] [stdout]    |                                                              ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/typechecking/mod.rs:28:42
[INFO] [stdout]    |
[INFO] [stdout] 28 |             ast::Statement::Assignment { span, target, expr } => todo!(),
[INFO] [stdout]    |                                          ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]   --> src/typechecking/mod.rs:28:48
[INFO] [stdout]    |
[INFO] [stdout] 28 |             ast::Statement::Assignment { span, target, expr } => todo!(),
[INFO] [stdout]    |                                                ^^^^^^ help: try ignoring the field: `target: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/typechecking/mod.rs:28:56
[INFO] [stdout]    |
[INFO] [stdout] 28 |             ast::Statement::Assignment { span, target, expr } => todo!(),
[INFO] [stdout]    |                                                        ^^^^ help: try ignoring the field: `expr: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/typechecking/mod.rs:29:36
[INFO] [stdout]    |
[INFO] [stdout] 29 |             ast::Statement::Expr { span, expr } => todo!(),
[INFO] [stdout]    |                                    ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/typechecking/mod.rs:29:42
[INFO] [stdout]    |
[INFO] [stdout] 29 |             ast::Statement::Expr { span, expr } => todo!(),
[INFO] [stdout]    |                                          ^^^^ help: try ignoring the field: `expr: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error_context`
[INFO] [stdout]   --> src/main.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut error_context = ErrorContext::new();
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_error_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut error_context = ErrorContext::new();
[INFO] [stdout]    |         ----^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `start_loc` and `end_loc` are never used
[INFO] [stdout]   --> src/token.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl Token {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] 40 |     pub fn start_loc(&self) ->Loc {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn end_loc(&self) ->Loc {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Array`, `Pointer`, and `Func` are never constructed
[INFO] [stdout]   --> src/ast.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub enum VarType {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] 18 |     Normal(Span, String),
[INFO] [stdout] 19 |     Array(Span, Box<VarType>, Option<usize>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     Pointer(Span, Box<VarType>),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 21 |     Func(Span, Box<VarType>, Vec<ArgDecl>)
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VarType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `span`, `name`, and `kind` are never read
[INFO] [stdout]   --> src/ast.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct ArgDecl {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 26 |     pub span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 27 |     pub name: Identifier,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 28 |     pub kind: VarType
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ArgDecl` 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 `end` is never read
[INFO] [stdout]  --> src/span.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Span {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 5 |     pub start: Loc,
[INFO] [stdout] 6 |     pub end: Loc,
[INFO] [stdout]   |         ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Span` 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: associated items `new` and `end` are never used
[INFO] [stdout]   --> src/span.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Span {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn new(start: Loc, end: Loc) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn end(&self) -> Loc {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `col` is never read
[INFO] [stdout]   --> src/span.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct Loc {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 36 |     pub lineno: u32,
[INFO] [stdout] 37 |     pub col: u32,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Loc` 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 `span` is never used
[INFO] [stdout]   --> src/span.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub trait GetSpan {
[INFO] [stdout]    |           ------- method in this trait
[INFO] [stdout] 41 |     fn span(&self) -> &Span;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `errors` is never read
[INFO] [stdout]  --> src/errorcontext.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct ErrorContext {
[INFO] [stdout]   |            ------------ field in this struct
[INFO] [stdout] 5 |     errors: Vec<Error>
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ErrorContext` 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 `UndefinedVariable` and `UnexpectedToken` are never constructed
[INFO] [stdout]   --> src/errorcontext.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum ErrorKind {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] 16 |     UndefinedVariable,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 17 |     UnexpectedToken,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ErrorKind` 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 `kind`, `filename`, and `span` are never read
[INFO] [stdout]   --> src/errorcontext.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Error {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 22 |     kind: ErrorKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 23 |     filename: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 24 |     span: Span
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` 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 `TypeChecker` is never constructed
[INFO] [stdout]  --> src/typechecking/mod.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct TypeChecker<'a> {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TypeChecker` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `check`, `check_body`, and `check_statement` are never used
[INFO] [stdout]   --> src/typechecking/mod.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl <'a> TypeChecker<'a> {
[INFO] [stdout]    | ------------------------- associated items in this implementation
[INFO] [stdout] 11 |     pub fn check(err: &'a mut ErrorContext, statements: &[ast::Statement]) -> Self {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn check_body(&mut self, statements: &[ast::Statement]) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn check_statement(&mut self, statement: &ast::Statement) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Scopes` is never constructed
[INFO] [stdout]  --> src/typechecking/scope.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Scopes {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `put` are never used
[INFO] [stdout]   --> src/typechecking/scope.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Scopes {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 12 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn put(&mut self, name: &str, kind: Type, span: Span) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Scope` is never constructed
[INFO] [stdout]   --> src/typechecking/scope.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct Scope {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/typechecking/scope.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Scope {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 26 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Variable` is never constructed
[INFO] [stdout]   --> src/typechecking/scope.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct Variable {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Type` is never used
[INFO] [stdout]  --> src/typechecking/types.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Type {
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "ad7d6e2e3f338fc0f93b7e004ae407680d3ee4b39029c69cc6a697e2ca7ec27d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad7d6e2e3f338fc0f93b7e004ae407680d3ee4b39029c69cc6a697e2ca7ec27d", kill_on_drop: false }`
[INFO] [stdout] ad7d6e2e3f338fc0f93b7e004ae407680d3ee4b39029c69cc6a697e2ca7ec27d