[INFO] cloning repository https://github.com/AshtonSnapp/rouge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AshtonSnapp/rouge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAshtonSnapp%2Frouge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAshtonSnapp%2Frouge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5571570408eaa06e68c60363aace070525e5d90f
[INFO] checking AshtonSnapp/rouge against master#36b21637e93b038453924d3c66821089e71d8baa for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAshtonSnapp%2Frouge" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AshtonSnapp/rouge
[INFO] finished tweaking git repo https://github.com/AshtonSnapp/rouge
[INFO] tweaked toml for git repo https://github.com/AshtonSnapp/rouge written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AshtonSnapp/rouge on toolchain 36b21637e93b038453924d3c66821089e71d8baa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AshtonSnapp/rouge 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" "+36b21637e93b038453924d3c66821089e71d8baa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zstd-safe v5.0.1+zstd.1.5.2
[INFO] [stderr]   Downloaded beef v0.5.1
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[INFO] [stderr]   Downloaded clap v4.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13f5068fc3e828dfe607ad21f57f534db42bf8c34196445d911252309a3b56dd
[INFO] running `Command { std: "docker" "start" "-a" "13f5068fc3e828dfe607ad21f57f534db42bf8c34196445d911252309a3b56dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13f5068fc3e828dfe607ad21f57f534db42bf8c34196445d911252309a3b56dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13f5068fc3e828dfe607ad21f57f534db42bf8c34196445d911252309a3b56dd", kill_on_drop: false }`
[INFO] [stdout] 13f5068fc3e828dfe607ad21f57f534db42bf8c34196445d911252309a3b56dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a2a5e43d306f06e628db45f46331aa05014396d06fb74d8750f8f63ebc7920c
[INFO] running `Command { std: "docker" "start" "-a" "1a2a5e43d306f06e628db45f46331aa05014396d06fb74d8750f8f63ebc7920c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.90
[INFO] [stderr]    Compiling zstd-safe v5.0.1+zstd.1.5.2
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling beef v0.5.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking clap_lex v0.3.0
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v4.0.4
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]    Compiling zstd-sys v2.0.1+zstd.1.5.2
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]     Checking logos v0.12.0
[INFO] [stderr]     Checking zstd v0.11.1+zstd.1.5.2
[INFO] [stderr]     Checking rouge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `InterpretError`
[INFO] [stdout]  --> src/compiler/lexer.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     InterpretError,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TokenInner`
[INFO] [stdout]   --> src/compiler/parser/cstgen.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 |             TokenInner,
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ErrorList` and `Error`
[INFO] [stdout]  --> src/compiler/parser/mod.rs:7:2
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Error,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 8 |     ErrorList,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::InterpretError`
[INFO] [stdout]   --> src/compiler/parser/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use super::InterpretError;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cstgen::ConcreteSyntaxTree`
[INFO] [stdout]   --> src/compiler/parser/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use cstgen::ConcreteSyntaxTree;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `collections::HashMap` and `path::Path`
[INFO] [stdout]   --> src/compiler/parser/mod.rs:16:2
[INFO] [stdout]    |
[INFO] [stdout] 16 |     collections::HashMap,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 17 |     path::Path,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `InterpretError`
[INFO] [stdout]  --> src/compiler/lexer.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     InterpretError,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/compiler/lexer.rs:712:6
[INFO] [stdout]     |
[INFO] [stdout] 712 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TokenInner`
[INFO] [stdout]   --> src/compiler/parser/cstgen.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 |             TokenInner,
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ErrorList` and `Error`
[INFO] [stdout]  --> src/compiler/parser/mod.rs:7:2
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Error,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 8 |     ErrorList,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::InterpretError`
[INFO] [stdout]   --> src/compiler/parser/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use super::InterpretError;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cstgen::ConcreteSyntaxTree`
[INFO] [stdout]   --> src/compiler/parser/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use cstgen::ConcreteSyntaxTree;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `collections::HashMap` and `path::Path`
[INFO] [stdout]   --> src/compiler/parser/mod.rs:16:2
[INFO] [stdout]    |
[INFO] [stdout] 16 |     collections::HashMap,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 17 |     path::Path,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/compiler/lexer.rs:422:24
[INFO] [stdout]     |
[INFO] [stdout] 422 |     fn slice_index(&self, count: usize) -> std::result::Result<usize, nom::Needed> {
[INFO] [stdout]     |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/compiler/parser/cstgen.rs:59:7
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let mut errors = ErrorList::new();
[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: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:109:16
[INFO] [stdout]     |
[INFO] [stdout] 107 | impl Error {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] 108 |     /// Creates a new error object.
[INFO] [stdout] 109 |     pub(crate) fn new(is_warning: bool, file: Option<&Path>, line: Option<usize>, span: Option<Span>, slice: Option<&str>, kind: ErrorKind) ...
[INFO] [stdout]     |                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compile` is never used
[INFO] [stdout]   --> src/compiler/mod.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn compile(paths: Vec<&Path>) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Result` is never used
[INFO] [stdout]   --> src/compiler/lexer.rs:33:17
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub(crate) type Result = std::result::Result<TokenStream, ErrorList>;
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `lex_file` is never used
[INFO] [stdout]    --> src/compiler/lexer.rs:430:16
[INFO] [stdout]     |
[INFO] [stdout] 427 | impl TokenStream {
[INFO] [stdout]     | ---------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 430 |     pub(crate) fn lex_file(p: &Path) -> Result {
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tokens_to_ast` is never used
[INFO] [stdout]   --> src/compiler/parser/mod.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn tokens_to_ast() {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Result` is never used
[INFO] [stdout]   --> src/compiler/parser/cstgen.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub(crate) type Result = std::result::Result<(ConcreteSyntaxTree, ErrorList), ErrorList>;
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ContextStack` is never used
[INFO] [stdout]   --> src/compiler/parser/cstgen.rs:30:6
[INFO] [stdout]    |
[INFO] [stdout] 30 | type ContextStack = Vec<ConcreteSyntaxNode>;
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConcreteSyntaxTree` is never constructed
[INFO] [stdout]   --> src/compiler/parser/cstgen.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub(crate) struct ConcreteSyntaxTree {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConcreteSyntaxNode` is never constructed
[INFO] [stdout]   --> src/compiler/parser/cstgen.rs:41:19
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub(crate) struct ConcreteSyntaxNode {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/compiler/parser/cstgen.rs:50:16
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl ConcreteSyntaxTree {
[INFO] [stdout]    | ----------------------- associated function in this implementation
[INFO] [stdout] 50 |     pub(crate) fn new(path: &Path, mut tokens: TokenStream) -> Result {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `lefthand`, `righthand`, `with_lefthand`, and `with_righthand` are never used
[INFO] [stdout]    --> src/compiler/parser/cstgen.rs:88:16
[INFO] [stdout]     |
[INFO] [stdout] 87  | impl ConcreteSyntaxNode {
[INFO] [stdout]     | ----------------------- associated items in this implementation
[INFO] [stdout] 88  |     pub(crate) fn new(token: Token) -> ConcreteSyntaxNode {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 96  |     pub(crate) fn lefthand(self, lhs: ConcreteSyntaxNode) -> ConcreteSyntaxNode {
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub(crate) fn righthand(self, rhs: ConcreteSyntaxNode) -> ConcreteSyntaxNode {
[INFO] [stdout]     |                   ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     pub(crate) fn with_lefthand(&mut self, lhs: ConcreteSyntaxNode) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |     pub(crate) fn with_righthand(&mut self, rhs: ConcreteSyntaxNode) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/compiler/lexer.rs:422:24
[INFO] [stdout]     |
[INFO] [stdout] 422 |     fn slice_index(&self, count: usize) -> std::result::Result<usize, nom::Needed> {
[INFO] [stdout]     |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/compiler/parser/cstgen.rs:59:7
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let mut errors = ErrorList::new();
[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: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:109:16
[INFO] [stdout]     |
[INFO] [stdout] 107 | impl Error {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] 108 |     /// Creates a new error object.
[INFO] [stdout] 109 |     pub(crate) fn new(is_warning: bool, file: Option<&Path>, line: Option<usize>, span: Option<Span>, slice: Option<&str>, kind: ErrorKind) ...
[INFO] [stdout]     |                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compile` is never used
[INFO] [stdout]   --> src/compiler/mod.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn compile(paths: Vec<&Path>) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Result` is never used
[INFO] [stdout]   --> src/compiler/lexer.rs:33:17
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub(crate) type Result = std::result::Result<TokenStream, ErrorList>;
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `lex_file` is never used
[INFO] [stdout]    --> src/compiler/lexer.rs:430:16
[INFO] [stdout]     |
[INFO] [stdout] 427 | impl TokenStream {
[INFO] [stdout]     | ---------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 430 |     pub(crate) fn lex_file(p: &Path) -> Result {
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tokens_to_ast` is never used
[INFO] [stdout]   --> src/compiler/parser/mod.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn tokens_to_ast() {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Result` is never used
[INFO] [stdout]   --> src/compiler/parser/cstgen.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub(crate) type Result = std::result::Result<(ConcreteSyntaxTree, ErrorList), ErrorList>;
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ContextStack` is never used
[INFO] [stdout]   --> src/compiler/parser/cstgen.rs:30:6
[INFO] [stdout]    |
[INFO] [stdout] 30 | type ContextStack = Vec<ConcreteSyntaxNode>;
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConcreteSyntaxTree` is never constructed
[INFO] [stdout]   --> src/compiler/parser/cstgen.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub(crate) struct ConcreteSyntaxTree {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConcreteSyntaxNode` is never constructed
[INFO] [stdout]   --> src/compiler/parser/cstgen.rs:41:19
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub(crate) struct ConcreteSyntaxNode {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/compiler/parser/cstgen.rs:50:16
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl ConcreteSyntaxTree {
[INFO] [stdout]    | ----------------------- associated function in this implementation
[INFO] [stdout] 50 |     pub(crate) fn new(path: &Path, mut tokens: TokenStream) -> Result {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `lefthand`, `righthand`, `with_lefthand`, and `with_righthand` are never used
[INFO] [stdout]    --> src/compiler/parser/cstgen.rs:88:16
[INFO] [stdout]     |
[INFO] [stdout] 87  | impl ConcreteSyntaxNode {
[INFO] [stdout]     | ----------------------- associated items in this implementation
[INFO] [stdout] 88  |     pub(crate) fn new(token: Token) -> ConcreteSyntaxNode {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 96  |     pub(crate) fn lefthand(self, lhs: ConcreteSyntaxNode) -> ConcreteSyntaxNode {
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub(crate) fn righthand(self, rhs: ConcreteSyntaxNode) -> ConcreteSyntaxNode {
[INFO] [stdout]     |                   ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     pub(crate) fn with_lefthand(&mut self, lhs: ConcreteSyntaxNode) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |     pub(crate) fn with_righthand(&mut self, rhs: ConcreteSyntaxNode) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ValueHint`
[INFO] [stdout]   --> src/main.rs:10:2
[INFO] [stdout]    |
[INFO] [stdout] 10 |     ValueHint,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/main.rs:24:6
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let args = Command::new("rouge")
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ValueHint`
[INFO] [stdout]   --> src/main.rs:10:2
[INFO] [stdout]    |
[INFO] [stdout] 10 |     ValueHint,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/main.rs:24:6
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let args = Command::new("rouge")
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 56.70s
[INFO] running `Command { std: "docker" "inspect" "1a2a5e43d306f06e628db45f46331aa05014396d06fb74d8750f8f63ebc7920c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a2a5e43d306f06e628db45f46331aa05014396d06fb74d8750f8f63ebc7920c", kill_on_drop: false }`
[INFO] [stdout] 1a2a5e43d306f06e628db45f46331aa05014396d06fb74d8750f8f63ebc7920c
