[INFO] updating cached repository https://github.com/OscarBrink/D7050E-simple-expr-parser
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/OscarBrink/D7050E-simple-expr-parser
[INFO] [stderr]    fd18970..a0a03ed  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a0a03ed1a25e6700f43fa9501a7b322c0382afd5
[INFO] checking OscarBrink/D7050E-simple-expr-parser against master#9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7 for pr-64564
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FOscarBrink%2FD7050E-simple-expr-parser" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/OscarBrink/D7050E-simple-expr-parser on toolchain 9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/OscarBrink/D7050E-simple-expr-parser
[INFO] finished tweaking git repo https://github.com/OscarBrink/D7050E-simple-expr-parser
[INFO] tweaked toml for git repo https://github.com/OscarBrink/D7050E-simple-expr-parser written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/OscarBrink/D7050E-simple-expr-parser already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c6f823ae01e22970353865589de58bebaaa4ab7cc534232c4b097cec51594040
[INFO] running `"docker" "start" "-a" "c6f823ae01e22970353865589de58bebaaa4ab7cc534232c4b097cec51594040"`
[INFO] [stderr]    Compiling stackvector v1.0.7
[INFO] [stderr]     Checking lexical-core v0.4.3
[INFO] [stderr]     Checking nom v5.0.1
[INFO] [stderr]     Checking simple-expr-parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variant is never constructed: `Declaration`
[INFO] [stderr]    --> src/compiler/ast.rs:123:5
[INFO] [stderr]     |
[INFO] [stderr] 123 |     Declaration(String, Option<Type>, Box<Option<Expr>>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Return`
[INFO] [stderr]    --> src/compiler/ast.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     Return(Box<Expr>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Scope`
[INFO] [stderr]    --> src/compiler/ast.rs:179:1
[INFO] [stderr]     |
[INFO] [stderr] 179 | pub type Scope = Vec<Statement>;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Block`
[INFO] [stderr]    --> src/compiler/ast.rs:181:1
[INFO] [stderr]     |
[INFO] [stderr] 181 | pub enum Block {
[INFO] [stderr]     | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Statement`
[INFO] [stderr]    --> src/compiler/ast.rs:187:1
[INFO] [stderr]     |
[INFO] [stderr] 187 | pub enum Statement {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `program`
[INFO] [stderr]   --> src/compiler/parser.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn program(input: &str) -> IResult<&str, Vec<ast::Block>, (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `function`
[INFO] [stderr]   --> src/compiler/parser.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn function(input: &str) -> IResult<&str, ast::Block, (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `return_type`
[INFO] [stderr]   --> src/compiler/parser.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn return_type(input: &str) -> IResult<&str, ast::Type, (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `argument_declaration`
[INFO] [stderr]   --> src/compiler/parser.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn argument_declaration(input: &str) -> IResult<&str, (ast::Expr, ast::Type), (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `loop_block`
[INFO] [stderr]   --> src/compiler/parser.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn loop_block(input: &str) -> IResult<&str, ast::Block, (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `conditional_block`
[INFO] [stderr]   --> src/compiler/parser.rs:58:1
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn conditional_block(input: &str) -> IResult<&str, ast::Block, (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `conditional`
[INFO] [stderr]   --> src/compiler/parser.rs:73:1
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn conditional(input: &str) -> IResult<&str, (ast::Expr, ast::Scope), (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `scope`
[INFO] [stderr]   --> src/compiler/parser.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | fn scope(input: &str) -> IResult<&str, ast::Scope, (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `statement`
[INFO] [stderr]   --> src/compiler/parser.rs:81:1
[INFO] [stderr]    |
[INFO] [stderr] 81 | fn statement(input: &str) -> IResult<&str, ast::Statement, (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `simple_statement`
[INFO] [stderr]   --> src/compiler/parser.rs:85:1
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn simple_statement(input: &str) -> IResult<&str, ast::Statement, (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compound_statement`
[INFO] [stderr]   --> src/compiler/parser.rs:96:1
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn compound_statement(input: &str) -> IResult<&str, ast::Statement, (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `variable_declaration`
[INFO] [stderr]    --> src/compiler/parser.rs:100:1
[INFO] [stderr]     |
[INFO] [stderr] 100 | fn variable_declaration(input: &str) -> IResult<&str, ast::Expr, (&str, ErrorKind)> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `assignment`
[INFO] [stderr]    --> src/compiler/parser.rs:120:1
[INFO] [stderr]     |
[INFO] [stderr] 120 | fn assignment(input: &str) -> IResult<&str, ast::Expr, (&str, ErrorKind)> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `type_declaration`
[INFO] [stderr]    --> src/compiler/parser.rs:124:1
[INFO] [stderr]     |
[INFO] [stderr] 124 | fn type_declaration(input: &str) -> IResult<&str, ast::Type, (&str, ErrorKind)> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `type_name`
[INFO] [stderr]    --> src/compiler/parser.rs:128:1
[INFO] [stderr]     |
[INFO] [stderr] 128 | fn type_name(input: &str) -> IResult<&str, ast::Type, (&str, ErrorKind)> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `return_expr`
[INFO] [stderr]    --> src/compiler/parser.rs:132:1
[INFO] [stderr]     |
[INFO] [stderr] 132 | fn return_expr(input: &str) -> IResult<&str, ast::Expr, (&str, ErrorKind)> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Declaration`
[INFO] [stderr]    --> src/compiler/ast.rs:123:5
[INFO] [stderr]     |
[INFO] [stderr] 123 |     Declaration(String, Option<Type>, Box<Option<Expr>>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Return`
[INFO] [stderr]    --> src/compiler/ast.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     Return(Box<Expr>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Scope`
[INFO] [stderr]    --> src/compiler/ast.rs:179:1
[INFO] [stderr]     |
[INFO] [stderr] 179 | pub type Scope = Vec<Statement>;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Block`
[INFO] [stderr]    --> src/compiler/ast.rs:181:1
[INFO] [stderr]     |
[INFO] [stderr] 181 | pub enum Block {
[INFO] [stderr]     | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Statement`
[INFO] [stderr]    --> src/compiler/ast.rs:187:1
[INFO] [stderr]     |
[INFO] [stderr] 187 | pub enum Statement {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `program`
[INFO] [stderr]   --> src/compiler/parser.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn program(input: &str) -> IResult<&str, Vec<ast::Block>, (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `function`
[INFO] [stderr]   --> src/compiler/parser.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn function(input: &str) -> IResult<&str, ast::Block, (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `return_type`
[INFO] [stderr]   --> src/compiler/parser.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn return_type(input: &str) -> IResult<&str, ast::Type, (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `argument_declaration`
[INFO] [stderr]   --> src/compiler/parser.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn argument_declaration(input: &str) -> IResult<&str, (ast::Expr, ast::Type), (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `loop_block`
[INFO] [stderr]   --> src/compiler/parser.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn loop_block(input: &str) -> IResult<&str, ast::Block, (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `conditional_block`
[INFO] [stderr]   --> src/compiler/parser.rs:58:1
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn conditional_block(input: &str) -> IResult<&str, ast::Block, (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `conditional`
[INFO] [stderr]   --> src/compiler/parser.rs:73:1
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn conditional(input: &str) -> IResult<&str, (ast::Expr, ast::Scope), (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `scope`
[INFO] [stderr]   --> src/compiler/parser.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | fn scope(input: &str) -> IResult<&str, ast::Scope, (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `statement`
[INFO] [stderr]   --> src/compiler/parser.rs:81:1
[INFO] [stderr]    |
[INFO] [stderr] 81 | fn statement(input: &str) -> IResult<&str, ast::Statement, (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `simple_statement`
[INFO] [stderr]   --> src/compiler/parser.rs:85:1
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn simple_statement(input: &str) -> IResult<&str, ast::Statement, (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compound_statement`
[INFO] [stderr]   --> src/compiler/parser.rs:96:1
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn compound_statement(input: &str) -> IResult<&str, ast::Statement, (&str, ErrorKind)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `variable_declaration`
[INFO] [stderr]    --> src/compiler/parser.rs:100:1
[INFO] [stderr]     |
[INFO] [stderr] 100 | fn variable_declaration(input: &str) -> IResult<&str, ast::Expr, (&str, ErrorKind)> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `assignment`
[INFO] [stderr]    --> src/compiler/parser.rs:120:1
[INFO] [stderr]     |
[INFO] [stderr] 120 | fn assignment(input: &str) -> IResult<&str, ast::Expr, (&str, ErrorKind)> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `type_declaration`
[INFO] [stderr]    --> src/compiler/parser.rs:124:1
[INFO] [stderr]     |
[INFO] [stderr] 124 | fn type_declaration(input: &str) -> IResult<&str, ast::Type, (&str, ErrorKind)> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `type_name`
[INFO] [stderr]    --> src/compiler/parser.rs:128:1
[INFO] [stderr]     |
[INFO] [stderr] 128 | fn type_name(input: &str) -> IResult<&str, ast::Type, (&str, ErrorKind)> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `return_expr`
[INFO] [stderr]    --> src/compiler/parser.rs:132:1
[INFO] [stderr]     |
[INFO] [stderr] 132 | fn return_expr(input: &str) -> IResult<&str, ast::Expr, (&str, ErrorKind)> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.74s
[INFO] running `"docker" "inspect" "c6f823ae01e22970353865589de58bebaaa4ab7cc534232c4b097cec51594040"`
[INFO] running `"docker" "rm" "-f" "c6f823ae01e22970353865589de58bebaaa4ab7cc534232c4b097cec51594040"`
[INFO] [stdout] c6f823ae01e22970353865589de58bebaaa4ab7cc534232c4b097cec51594040