[INFO] cloning repository https://github.com/u66u/rcc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/u66u/rcc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fu66u%2Frcc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fu66u%2Frcc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7085bacece952510c403059022176bdf1f07033b
[INFO] building u66u/rcc 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%2Fu66u%2Frcc" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/u66u/rcc 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/u66u/rcc
[INFO] finished tweaking git repo https://github.com/u66u/rcc
[INFO] tweaked toml for git repo https://github.com/u66u/rcc written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/u66u/rcc 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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f499782ba906ef6fcc4e4845f83fa0795bf5e2c3314f1a3b28a5ca77771560a1
[INFO] running `Command { std: "docker" "start" "-a" "f499782ba906ef6fcc4e4845f83fa0795bf5e2c3314f1a3b28a5ca77771560a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f499782ba906ef6fcc4e4845f83fa0795bf5e2c3314f1a3b28a5ca77771560a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f499782ba906ef6fcc4e4845f83fa0795bf5e2c3314f1a3b28a5ca77771560a1", kill_on_drop: false }`
[INFO] [stdout] f499782ba906ef6fcc4e4845f83fa0795bf5e2c3314f1a3b28a5ca77771560a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9ab00edd0f6282a0143c8f5511be5bfea09d8f61e575ea3069d273bf49c733b
[INFO] running `Command { std: "docker" "start" "-a" "f9ab00edd0f6282a0143c8f5511be5bfea09d8f61e575ea3069d273bf49c733b", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling arrayvec v0.7.4
[INFO] [stderr]    Compiling joinery v2.1.0
[INFO] [stderr]    Compiling indent_write v2.2.0
[INFO] [stderr]    Compiling brownstone v3.0.0
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling nom-supreme v0.8.0
[INFO] [stderr]    Compiling rcc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `VerboseError`
[INFO] [stdout]  --> src/parser.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     error::{VerboseError, context},
[INFO] [stdout]   |             ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BaseErrorKind`, `Expectation`, and `StackContext`
[INFO] [stdout]   --> src/parser.rs:11:37
[INFO] [stdout]    |
[INFO] [stdout] 11 | use nom_supreme::error::{ErrorTree, BaseErrorKind, StackContext, Expectation};
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `func`
[INFO] [stdout]   --> src/main.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let func = "int add(int a, int b) {a = 5; b = 6; return a + b;}" ;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_func`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_constant` is never used
[INFO] [stdout]   --> src/parser.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn parse_constant(input: &str) -> VerboseIResult<&str, Expression> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Program` is never constructed
[INFO] [stdout]  --> src/ast.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Program {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ExternalDeclaration` is never used
[INFO] [stdout]  --> src/ast.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum ExternalDeclaration {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `type_specifier` and `name` are never read
[INFO] [stdout]   --> src/ast.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct FunctionParameter {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] 15 |     pub type_specifier: TypeSpecifier,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 16 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FunctionParameter` 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 `return_type`, `name`, `parameters`, and `body` are never read
[INFO] [stdout]   --> src/ast.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct FunctionDefinition {
[INFO] [stdout]    |            ------------------ fields in this struct
[INFO] [stdout] 22 |     pub return_type: TypeSpecifier,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 23 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 24 |     pub parameters: Vec<FunctionParameter>,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 25 |     pub body: CompoundStatement,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FunctionDefinition` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `statements` is never read
[INFO] [stdout]   --> src/ast.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct CompoundStatement {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 31 |     pub statements: Vec<Statement>,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompoundStatement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/ast.rs:39:16
[INFO] [stdout]    |
[INFO] [stdout] 39 |     ReturnStmt(Expression),
[INFO] [stdout]    |     ---------- ^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Statement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 39 |     ReturnStmt(()),
[INFO] [stdout]    |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ExpressionStmt`, `CompoundStmt`, and `IfThenStmt` are never constructed
[INFO] [stdout]   --> src/ast.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub enum Statement {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] 37 |     ExpressionStmt(Expression),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 38 |     CompoundStmt(CompoundStatement),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 39 |     ReturnStmt(Expression),
[INFO] [stdout] 40 |     IfThenStmt {
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Statement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/ast.rs:50:16
[INFO] [stdout]    |
[INFO] [stdout] 50 |     Identifier(String),
[INFO] [stdout]    |     ---------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 50 |     Identifier(()),
[INFO] [stdout]    |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `left`, `operator`, and `right` are never read
[INFO] [stdout]   --> src/ast.rs:54:16
[INFO] [stdout]    |
[INFO] [stdout] 54 |     BinaryOp { left: Box<Expression>, operator: BinaryOperator, right: Box<Expression> },
[INFO] [stdout]    |     --------   ^^^^                   ^^^^^^^^                  ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expression` 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 `Constant`, `StringLiteral`, `FunctionCall`, `UnaryOp`, and `EqualityOp` are never constructed
[INFO] [stdout]   --> src/ast.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub enum Expression {
[INFO] [stdout]    |          ---------- variants in this enum
[INFO] [stdout] 50 |     Identifier(String),
[INFO] [stdout] 51 |     Constant(i32),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 52 |     StringLiteral(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 53 |     FunctionCall { name: String, arguments: Vec<Expression> },
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 54 |     BinaryOp { left: Box<Expression>, operator: BinaryOperator, right: Box<Expression> },
[INFO] [stdout] 55 |     UnaryOp { operator: UnaryOperator, operand: Box<Expression> },
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 56 |     EqualityOp {
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expression` 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 `VariableDeclaration` is never constructed
[INFO] [stdout]   --> src/ast.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct VariableDeclaration {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InitDeclarator` is never constructed
[INFO] [stdout]   --> src/ast.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub struct InitDeclarator {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Void` and `Char` are never constructed
[INFO] [stdout]   --> src/ast.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub enum TypeSpecifier {
[INFO] [stdout]    |          ------------- variants in this enum
[INFO] [stdout] 78 |     Void,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 79 |     Char,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeSpecifier` 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 `Modulo`, `Equals`, `LogicalAnd`, and `LogicalOr` are never constructed
[INFO] [stdout]   --> src/ast.rs:91:5
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub enum BinaryOperator {
[INFO] [stdout]    |          -------------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 91 |     Modulo,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 92 |     Equals,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 93 |     LogicalAnd,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 94 |     LogicalOr
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BinaryOperator` 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 `Negate` and `LogicalNot` are never constructed
[INFO] [stdout]    --> src/ast.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 99  | pub enum UnaryOperator {
[INFO] [stdout]     |          ------------- variants in this enum
[INFO] [stdout] 100 |     Negate,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 101 |     LogicalNot,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `UnaryOperator` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.30s
[INFO] running `Command { std: "docker" "inspect" "f9ab00edd0f6282a0143c8f5511be5bfea09d8f61e575ea3069d273bf49c733b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9ab00edd0f6282a0143c8f5511be5bfea09d8f61e575ea3069d273bf49c733b", kill_on_drop: false }`
[INFO] [stdout] f9ab00edd0f6282a0143c8f5511be5bfea09d8f61e575ea3069d273bf49c733b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15f0e78a20a2c299a266ae4ca99058f7db8187af856429ad0f488173b34d5a99
[INFO] running `Command { std: "docker" "start" "-a" "15f0e78a20a2c299a266ae4ca99058f7db8187af856429ad0f488173b34d5a99", kill_on_drop: false }`
[INFO] [stderr]    Compiling rcc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `VerboseError`
[INFO] [stdout]  --> src/parser.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     error::{VerboseError, context},
[INFO] [stdout]   |             ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BaseErrorKind`, `Expectation`, and `StackContext`
[INFO] [stdout]   --> src/parser.rs:11:37
[INFO] [stdout]    |
[INFO] [stdout] 11 | use nom_supreme::error::{ErrorTree, BaseErrorKind, StackContext, Expectation};
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `func`
[INFO] [stdout]   --> src/main.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let func = "int add(int a, int b) {a = 5; b = 6; return a + b;}" ;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_func`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_constant` is never used
[INFO] [stdout]   --> src/parser.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn parse_constant(input: &str) -> VerboseIResult<&str, Expression> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Program` is never constructed
[INFO] [stdout]  --> src/ast.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Program {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ExternalDeclaration` is never used
[INFO] [stdout]  --> src/ast.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum ExternalDeclaration {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `type_specifier` and `name` are never read
[INFO] [stdout]   --> src/ast.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct FunctionParameter {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] 15 |     pub type_specifier: TypeSpecifier,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 16 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FunctionParameter` 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 `return_type`, `name`, `parameters`, and `body` are never read
[INFO] [stdout]   --> src/ast.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct FunctionDefinition {
[INFO] [stdout]    |            ------------------ fields in this struct
[INFO] [stdout] 22 |     pub return_type: TypeSpecifier,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 23 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 24 |     pub parameters: Vec<FunctionParameter>,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 25 |     pub body: CompoundStatement,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FunctionDefinition` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `statements` is never read
[INFO] [stdout]   --> src/ast.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct CompoundStatement {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 31 |     pub statements: Vec<Statement>,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompoundStatement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/ast.rs:39:16
[INFO] [stdout]    |
[INFO] [stdout] 39 |     ReturnStmt(Expression),
[INFO] [stdout]    |     ---------- ^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Statement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 39 |     ReturnStmt(()),
[INFO] [stdout]    |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ExpressionStmt`, `CompoundStmt`, and `IfThenStmt` are never constructed
[INFO] [stdout]   --> src/ast.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub enum Statement {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] 37 |     ExpressionStmt(Expression),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 38 |     CompoundStmt(CompoundStatement),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 39 |     ReturnStmt(Expression),
[INFO] [stdout] 40 |     IfThenStmt {
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Statement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/ast.rs:50:16
[INFO] [stdout]    |
[INFO] [stdout] 50 |     Identifier(String),
[INFO] [stdout]    |     ---------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 50 |     Identifier(()),
[INFO] [stdout]    |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `left`, `operator`, and `right` are never read
[INFO] [stdout]   --> src/ast.rs:54:16
[INFO] [stdout]    |
[INFO] [stdout] 54 |     BinaryOp { left: Box<Expression>, operator: BinaryOperator, right: Box<Expression> },
[INFO] [stdout]    |     --------   ^^^^                   ^^^^^^^^                  ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expression` 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 `Constant`, `StringLiteral`, `FunctionCall`, `UnaryOp`, and `EqualityOp` are never constructed
[INFO] [stdout]   --> src/ast.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub enum Expression {
[INFO] [stdout]    |          ---------- variants in this enum
[INFO] [stdout] 50 |     Identifier(String),
[INFO] [stdout] 51 |     Constant(i32),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 52 |     StringLiteral(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 53 |     FunctionCall { name: String, arguments: Vec<Expression> },
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 54 |     BinaryOp { left: Box<Expression>, operator: BinaryOperator, right: Box<Expression> },
[INFO] [stdout] 55 |     UnaryOp { operator: UnaryOperator, operand: Box<Expression> },
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 56 |     EqualityOp {
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expression` 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 `VariableDeclaration` is never constructed
[INFO] [stdout]   --> src/ast.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct VariableDeclaration {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InitDeclarator` is never constructed
[INFO] [stdout]   --> src/ast.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub struct InitDeclarator {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Void` and `Char` are never constructed
[INFO] [stdout]   --> src/ast.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub enum TypeSpecifier {
[INFO] [stdout]    |          ------------- variants in this enum
[INFO] [stdout] 78 |     Void,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 79 |     Char,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeSpecifier` 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 `Modulo`, `Equals`, `LogicalAnd`, and `LogicalOr` are never constructed
[INFO] [stdout]   --> src/ast.rs:91:5
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub enum BinaryOperator {
[INFO] [stdout]    |          -------------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 91 |     Modulo,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 92 |     Equals,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 93 |     LogicalAnd,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 94 |     LogicalOr
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BinaryOperator` 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 `Negate` and `LogicalNot` are never constructed
[INFO] [stdout]    --> src/ast.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 99  | pub enum UnaryOperator {
[INFO] [stdout]     |          ------------- variants in this enum
[INFO] [stdout] 100 |     Negate,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 101 |     LogicalNot,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `UnaryOperator` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "15f0e78a20a2c299a266ae4ca99058f7db8187af856429ad0f488173b34d5a99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15f0e78a20a2c299a266ae4ca99058f7db8187af856429ad0f488173b34d5a99", kill_on_drop: false }`
[INFO] [stdout] 15f0e78a20a2c299a266ae4ca99058f7db8187af856429ad0f488173b34d5a99