[INFO] cloning repository https://github.com/0xhakiim/rust-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xhakiim/rust-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xhakiim%2Frust-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xhakiim%2Frust-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e0993be905545cf97a9e82d556a9c100b1646727
[INFO] testing 0xhakiim/rust-compiler against try#9f93af291970322f4f1c6315ccde4d7078201159 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xhakiim%2Frust-compiler" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/0xhakiim/rust-compiler
[INFO] finished tweaking git repo https://github.com/0xhakiim/rust-compiler
[INFO] tweaked toml for git repo https://github.com/0xhakiim/rust-compiler written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/0xhakiim/rust-compiler on toolchain 9f93af291970322f4f1c6315ccde4d7078201159
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/0xhakiim/rust-compiler 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" "+9f93af291970322f4f1c6315ccde4d7078201159" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e44ad535648ab17fac292a36853c404f3fae2edc2cff202528361baa5dd7d53d
[INFO] running `Command { std: "docker" "start" "-a" "e44ad535648ab17fac292a36853c404f3fae2edc2cff202528361baa5dd7d53d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e44ad535648ab17fac292a36853c404f3fae2edc2cff202528361baa5dd7d53d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e44ad535648ab17fac292a36853c404f3fae2edc2cff202528361baa5dd7d53d", kill_on_drop: false }`
[INFO] [stdout] e44ad535648ab17fac292a36853c404f3fae2edc2cff202528361baa5dd7d53d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 715dfc5625792a72c1f208771738ff1fcea1ddb6260fc373dc36e96b7571766c
[INFO] running `Command { std: "docker" "start" "-a" "715dfc5625792a72c1f208771738ff1fcea1ddb6260fc373dc36e96b7571766c", kill_on_drop: false }`
[INFO] [stderr]    Compiling compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `ast`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let ast  =Ast::new();
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_ast`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `statements` is never read
[INFO] [stdout]  --> src/ast/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Ast{
[INFO] [stdout]   |            --- field in this struct
[INFO] [stdout] 4 |     pub statements: Vec<AstStatement>,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Ast` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `addstatement` and `visualize` are never used
[INFO] [stdout]   --> src/ast/mod.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl Ast{
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub fn addstatement(&mut self, statement: AstStatement){
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub fn visualize(&self){
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kind` is never read
[INFO] [stdout]   --> src/ast/mod.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct AstStatement{
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 24 |     pub kind: AstStatementKind,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AstStatement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Expression` is never constructed
[INFO] [stdout]   --> src/ast/mod.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum AstStatementKind{
[INFO] [stdout]    |          ---------------- variant in this enum
[INFO] [stdout] 28 |     Expression(AstExpression),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AstStatementKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ast/mod.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl AstStatement{
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 32 |     pub fn new(kind: AstStatementKind) -> Self{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kind` is never read
[INFO] [stdout]   --> src/ast/mod.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct AstExpression{
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 38 |     pub kind: AstExpressionKind,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AstExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Number` is never constructed
[INFO] [stdout]   --> src/ast/mod.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub enum AstExpressionKind{
[INFO] [stdout]    |          ----------------- variant in this enum
[INFO] [stdout] 42 |     Number(i64),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AstExpressionKind` 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 `new` and `visualize` are never used
[INFO] [stdout]   --> src/ast/mod.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl AstExpression{
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] 51 |     pub fn new(kind: AstExpressionKind) -> Self{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn visualize(&self){
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AstNumberExpression` is never constructed
[INFO] [stdout]   --> src/ast/mod.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct AstNumberExpression{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AstVisitor` is never used
[INFO] [stdout]   --> src/ast/mod.rs:66:7
[INFO] [stdout]    |
[INFO] [stdout] 66 | trait AstVisitor{
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]  --> src/ast/lexer.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct AstToken{
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 3 |     pub(crate) kind: AstTokenKind,
[INFO] [stdout] 4 |     span: Span,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `AstToken` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/ast/lexer.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Number(i64),
[INFO] [stdout]    |     ------ ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AstTokenKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 -     Number(i64),
[INFO] [stdout] 14 +     Number(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/ast/lexer.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum AstTokenKind{
[INFO] [stdout]    |          ------------ variants in this enum
[INFO] [stdout] 13 |     Identifier(String),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 14 |     Number(i64),
[INFO] [stdout] 15 |     Plus,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 16 |     Minus,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 17 |     Star,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 18 |     Slash,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 19 |     LParen,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 20 |     RParen,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AstTokenKind` 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 `start`, `end`, and `literal` are never read
[INFO] [stdout]   --> src/ast/lexer.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Span{
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 26 |     start: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 27 |     end: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 28 |     literal: String,
[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: method `length` is never used
[INFO] [stdout]   --> src/ast/lexer.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl Span{
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn length(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "715dfc5625792a72c1f208771738ff1fcea1ddb6260fc373dc36e96b7571766c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "715dfc5625792a72c1f208771738ff1fcea1ddb6260fc373dc36e96b7571766c", kill_on_drop: false }`
[INFO] [stdout] 715dfc5625792a72c1f208771738ff1fcea1ddb6260fc373dc36e96b7571766c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 587b83d3d7d09c1b0126e17050348f91bbe9d0450da5db8b60bd26f0aedbe8b1
[INFO] running `Command { std: "docker" "start" "-a" "587b83d3d7d09c1b0126e17050348f91bbe9d0450da5db8b60bd26f0aedbe8b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `ast`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let ast  =Ast::new();
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_ast`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `statements` is never read
[INFO] [stdout]  --> src/ast/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Ast{
[INFO] [stdout]   |            --- field in this struct
[INFO] [stdout] 4 |     pub statements: Vec<AstStatement>,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Ast` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `addstatement` and `visualize` are never used
[INFO] [stdout]   --> src/ast/mod.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl Ast{
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub fn addstatement(&mut self, statement: AstStatement){
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub fn visualize(&self){
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kind` is never read
[INFO] [stdout]   --> src/ast/mod.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct AstStatement{
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 24 |     pub kind: AstStatementKind,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AstStatement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Expression` is never constructed
[INFO] [stdout]   --> src/ast/mod.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum AstStatementKind{
[INFO] [stdout]    |          ---------------- variant in this enum
[INFO] [stdout] 28 |     Expression(AstExpression),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AstStatementKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ast/mod.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl AstStatement{
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 32 |     pub fn new(kind: AstStatementKind) -> Self{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kind` is never read
[INFO] [stdout]   --> src/ast/mod.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct AstExpression{
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 38 |     pub kind: AstExpressionKind,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AstExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Number` is never constructed
[INFO] [stdout]   --> src/ast/mod.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub enum AstExpressionKind{
[INFO] [stdout]    |          ----------------- variant in this enum
[INFO] [stdout] 42 |     Number(i64),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AstExpressionKind` 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 `new` and `visualize` are never used
[INFO] [stdout]   --> src/ast/mod.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl AstExpression{
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] 51 |     pub fn new(kind: AstExpressionKind) -> Self{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn visualize(&self){
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AstNumberExpression` is never constructed
[INFO] [stdout]   --> src/ast/mod.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct AstNumberExpression{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AstVisitor` is never used
[INFO] [stdout]   --> src/ast/mod.rs:66:7
[INFO] [stdout]    |
[INFO] [stdout] 66 | trait AstVisitor{
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]  --> src/ast/lexer.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct AstToken{
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 3 |     pub(crate) kind: AstTokenKind,
[INFO] [stdout] 4 |     span: Span,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `AstToken` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/ast/lexer.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Number(i64),
[INFO] [stdout]    |     ------ ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AstTokenKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 -     Number(i64),
[INFO] [stdout] 14 +     Number(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/ast/lexer.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum AstTokenKind{
[INFO] [stdout]    |          ------------ variants in this enum
[INFO] [stdout] 13 |     Identifier(String),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 14 |     Number(i64),
[INFO] [stdout] 15 |     Plus,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 16 |     Minus,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 17 |     Star,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 18 |     Slash,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 19 |     LParen,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 20 |     RParen,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AstTokenKind` 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 `start`, `end`, and `literal` are never read
[INFO] [stdout]   --> src/ast/lexer.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Span{
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 26 |     start: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 27 |     end: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 28 |     literal: String,
[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: method `length` is never used
[INFO] [stdout]   --> src/ast/lexer.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl Span{
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn length(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "587b83d3d7d09c1b0126e17050348f91bbe9d0450da5db8b60bd26f0aedbe8b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "587b83d3d7d09c1b0126e17050348f91bbe9d0450da5db8b60bd26f0aedbe8b1", kill_on_drop: false }`
[INFO] [stdout] 587b83d3d7d09c1b0126e17050348f91bbe9d0450da5db8b60bd26f0aedbe8b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9d40df307e0df8dc4306df48b885b30b1b39a59789129f07f26feac7a1f717d1
[INFO] running `Command { std: "docker" "start" "-a" "9d40df307e0df8dc4306df48b885b30b1b39a59789129f07f26feac7a1f717d1", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `ast`
[INFO] [stderr]  --> src/main.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let ast  =Ast::new();
[INFO] [stderr]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_ast`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `statements` is never read
[INFO] [stderr]  --> src/ast/mod.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Ast{
[INFO] [stderr]   |            --- field in this struct
[INFO] [stderr] 4 |     pub statements: Vec<AstStatement>,
[INFO] [stderr]   |         ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Ast` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: methods `addstatement` and `visualize` are never used
[INFO] [stderr]   --> src/ast/mod.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr]  6 | impl Ast{
[INFO] [stderr]    | -------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 10 |     pub fn addstatement(&mut self, statement: AstStatement){
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 13 |     pub fn visualize(&self){
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `kind` is never read
[INFO] [stderr]   --> src/ast/mod.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub struct AstStatement{
[INFO] [stderr]    |            ------------ field in this struct
[INFO] [stderr] 24 |     pub kind: AstStatementKind,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `AstStatement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Expression` is never constructed
[INFO] [stderr]   --> src/ast/mod.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub enum AstStatementKind{
[INFO] [stderr]    |          ---------------- variant in this enum
[INFO] [stderr] 28 |     Expression(AstExpression),
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `AstStatementKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/ast/mod.rs:32:12
[INFO] [stderr]    |
[INFO] [stderr] 31 | impl AstStatement{
[INFO] [stderr]    | ----------------- associated function in this implementation
[INFO] [stderr] 32 |     pub fn new(kind: AstStatementKind) -> Self{
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `kind` is never read
[INFO] [stderr]   --> src/ast/mod.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub struct AstExpression{
[INFO] [stderr]    |            ------------- field in this struct
[INFO] [stderr] 38 |     pub kind: AstExpressionKind,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `AstExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Number` is never constructed
[INFO] [stderr]   --> src/ast/mod.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub enum AstExpressionKind{
[INFO] [stderr]    |          ----------------- variant in this enum
[INFO] [stderr] 42 |     Number(i64),
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `AstExpressionKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `visualize` are never used
[INFO] [stderr]   --> src/ast/mod.rs:51:12
[INFO] [stderr]    |
[INFO] [stderr] 50 | impl AstExpression{
[INFO] [stderr]    | ------------------ associated items in this implementation
[INFO] [stderr] 51 |     pub fn new(kind: AstExpressionKind) -> Self{
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 55 |     pub fn visualize(&self){
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `AstNumberExpression` is never constructed
[INFO] [stderr]   --> src/ast/mod.rs:63:12
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub struct AstNumberExpression{
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `AstVisitor` is never used
[INFO] [stderr]   --> src/ast/mod.rs:66:7
[INFO] [stderr]    |
[INFO] [stderr] 66 | trait AstVisitor{
[INFO] [stderr]    |       ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `span` is never read
[INFO] [stderr]  --> src/ast/lexer.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub struct AstToken{
[INFO] [stderr]   |            -------- field in this struct
[INFO] [stderr] 3 |     pub(crate) kind: AstTokenKind,
[INFO] [stderr] 4 |     span: Span,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `AstToken` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/ast/lexer.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Number(i64),
[INFO] [stderr]    |     ------ ^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `AstTokenKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 14 -     Number(i64),
[INFO] [stderr] 14 +     Number(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: multiple variants are never constructed
[INFO] [stderr]   --> src/ast/lexer.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub enum AstTokenKind{
[INFO] [stderr]    |          ------------ variants in this enum
[INFO] [stderr] 13 |     Identifier(String),
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 14 |     Number(i64),
[INFO] [stderr] 15 |     Plus,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 16 |     Minus,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 17 |     Star,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 18 |     Slash,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 19 |     LParen,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 20 |     RParen,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `AstTokenKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `start`, `end`, and `literal` are never read
[INFO] [stderr]   --> src/ast/lexer.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub struct Span{
[INFO] [stderr]    |            ---- fields in this struct
[INFO] [stderr] 26 |     start: usize,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 27 |     end: usize,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 28 |     literal: String,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Span` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `length` is never used
[INFO] [stderr]   --> src/ast/lexer.rs:34:8
[INFO] [stderr]    |
[INFO] [stderr] 30 | impl Span{
[INFO] [stderr]    | --------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 34 |     fn length(&self) -> usize {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `compiler` (bin "compiler" test) generated 16 warnings (run `cargo fix --bin "compiler" -p compiler --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/compiler-ca47a2b0f2ac0100)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9d40df307e0df8dc4306df48b885b30b1b39a59789129f07f26feac7a1f717d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d40df307e0df8dc4306df48b885b30b1b39a59789129f07f26feac7a1f717d1", kill_on_drop: false }`
[INFO] [stdout] 9d40df307e0df8dc4306df48b885b30b1b39a59789129f07f26feac7a1f717d1
