[INFO] cloning repository https://github.com/dahosek/finl_parse
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dahosek/finl_parse" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdahosek%2Ffinl_parse", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdahosek%2Ffinl_parse'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0740528c9b905ace62fe25ded3c2c9820deccc16
[INFO] testing dahosek/finl_parse against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdahosek%2Ffinl_parse" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dahosek/finl_parse on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dahosek/finl_parse
[INFO] finished tweaking git repo https://github.com/dahosek/finl_parse
[INFO] tweaked toml for git repo https://github.com/dahosek/finl_parse written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/dahosek/finl_parse already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d06126a02dcb46acc6ca5f8c80ab80bdad77bba088418c809edcaa5f09d56cad
[INFO] running `Command { std: "docker" "start" "-a" "d06126a02dcb46acc6ca5f8c80ab80bdad77bba088418c809edcaa5f09d56cad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d06126a02dcb46acc6ca5f8c80ab80bdad77bba088418c809edcaa5f09d56cad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d06126a02dcb46acc6ca5f8c80ab80bdad77bba088418c809edcaa5f09d56cad", kill_on_drop: false }`
[INFO] [stdout] d06126a02dcb46acc6ca5f8c80ab80bdad77bba088418c809edcaa5f09d56cad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 046f3c216aaf118532988eaf47608b21b046b48a4b5a1186c34120f7385415cb
[INFO] running `Command { std: "docker" "start" "-a" "046f3c216aaf118532988eaf47608b21b046b48a4b5a1186c34120f7385415cb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling unicode_categories v0.1.1
[INFO] [stderr]    Compiling finl_parse v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `command_context`
[INFO] [stdout]    --> src/lib.rs:303:36
[INFO] [stdout]     |
[INFO] [stdout] 303 |     fn get_command_name(&mut self, command_context: &CommandContext) -> String {
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_command_context`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arg`
[INFO] [stdout]    --> src/lib.rs:376:29
[INFO] [stdout]     |
[INFO] [stdout] 376 |                         let arg  = self.output.split_off(tokens_end);
[INFO] [stdout]     |                             ^^^ help: if this is intentional, prefix it with an underscore: `_arg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptype`
[INFO] [stdout]    --> src/lib.rs:355:120
[INFO] [stdout]     |
[INFO] [stdout] 355 | ...and_context: &CommandContext, ptype: ParameterType) -> Result<Token,FinlError> {
[INFO] [stdout]     |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_ptype`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rc_from_line_and_column`
[INFO] [stdout]   --> src/tokens.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn rc_from_line_and_column(line: &Line, column: usize) -> Rc<Location> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_line_and_column`
[INFO] [stdout]   --> src/tokens.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn from_line_and_column(line: &Line, column: usize) -> Location {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Brace`
[INFO] [stdout]   --> src/tokens.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     Brace,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Environment`
[INFO] [stdout]   --> src/tokens.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Environment(Rc<Environment>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RequiredArgument`
[INFO] [stdout]   --> src/tokens.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     RequiredArgument,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OptionalArgument`
[INFO] [stdout]   --> src/tokens.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     OptionalArgument,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ArbitraryDelim`
[INFO] [stdout]   --> src/tokens.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     ArbitraryDelim(String), // must be string so we can write, e.g., \verb🇨🇦something🇨🇦
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_line_and_column`
[INFO] [stdout]   --> src/tokens.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn from_line_and_column(line: &Line, column: usize) -> ErrorContext {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UndefinedCommand`
[INFO] [stdout]   --> src/tokens.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     UndefinedCommand(ErrorContext, String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unimplemented`
[INFO] [stdout]   --> src/tokens.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     Unimplemented(ErrorContext),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BlankLineWhileParsingCommandArguments`
[INFO] [stdout]   --> src/tokens.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     BlankLineWhileParsingCommandArguments(ErrorContext, String, usize), // .2 is the argument number
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UnexpectedEOFWhileParsingCommandArguments`
[INFO] [stdout]   --> src/tokens.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     UnexpectedEOFWhileParsingCommandArguments(ErrorContext, String, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UnexpectedCloseBrace`
[INFO] [stdout]   --> src/tokens.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     UnexpectedCloseBrace(ErrorContext, Option<GroupType>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ParsedText`
[INFO] [stdout]   --> src/tokens.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     ParsedText(Location, String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Math`
[INFO] [stdout]   --> src/tokens.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     Math(Location, String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Command`
[INFO] [stdout]   --> src/tokens.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     Command(Location, Rc<Command>, Vec<Token>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Environment`
[INFO] [stdout]   --> src/tokens.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     Environment(Location, Rc<Environment>, Vec<Token>, Vec<Token>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RawText`
[INFO] [stdout]   --> src/tokens.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 80 |     RawText(Location, String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bgroup`
[INFO] [stdout]   --> src/tokens.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 |     Bgroup(Location),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Egroup`
[INFO] [stdout]   --> src/tokens.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     Egroup(Location),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Tokens`
[INFO] [stdout]   --> src/tokens.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     Tokens(Location, Vec<Token>) // Q: Does this make sense? Yes, for arguments to commands.
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/commands.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(name: &str, args: Vec<(ParameterFormat, ParameterType)>) -> Command {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `no_arg_command`
[INFO] [stdout]   --> src/commands.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn no_arg_command(name: String) -> Command {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Star`
[INFO] [stdout]   --> src/commands.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Star,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Required`
[INFO] [stdout]   --> src/commands.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Required,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RequiredWithBraces`
[INFO] [stdout]   --> src/commands.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     RequiredWithBraces,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Optional`
[INFO] [stdout]   --> src/commands.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     Optional,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ArbitraryDelimiters`
[INFO] [stdout]   --> src/commands.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     ArbitraryDelimiters,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ParsedTokens`
[INFO] [stdout]   --> src/commands.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     ParsedTokens,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `VerbatimText`
[INFO] [stdout]   --> src/commands.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     VerbatimText,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Boolean`
[INFO] [stdout]   --> src/commands.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     Boolean,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `KeyValueList`
[INFO] [stdout]   --> src/commands.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     KeyValueList,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MacroDefinition`
[INFO] [stdout]   --> src/commands.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     MacroDefinition,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Math`
[INFO] [stdout]   --> src/commands.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     Math,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `YAML`
[INFO] [stdout]   --> src/commands.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     YAML,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ParserState`
[INFO] [stdout]   --> src/lib.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 | enum ParserState {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `CommandContext`
[INFO] [stdout]   --> src/lib.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 | enum CommandContext {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Skipped`
[INFO] [stdout]   --> src/lib.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     Skipped,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FoundBlankLine`
[INFO] [stdout]   --> src/lib.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     FoundBlankLine,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EndOfFile`
[INFO] [stdout]   --> src/lib.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     EndOfFile
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `commands`
[INFO] [stdout]   --> src/lib.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     commands: HashMap<String, Rc<Command>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `environments`
[INFO] [stdout]   --> src/lib.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     environments: HashMap<String, Rc<Environment>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `lines`
[INFO] [stdout]   --> src/lib.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     lines: Box<dyn Iterator<Item=&'a str> + 'a>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `line`
[INFO] [stdout]   --> src/lib.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     line: Line,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `char_iterator`
[INFO] [stdout]   --> src/lib.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     char_iterator: Peekable<CharIndices<'a>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `output`
[INFO] [stdout]   --> src/lib.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     output: Vec<Result<Token, FinlError>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stack`
[INFO] [stdout]   --> src/lib.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     stack: Vec<GroupType>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_string`
[INFO] [stdout]   --> src/lib.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn from_string(input: &'a str) -> Parser<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `define_command`
[INFO] [stdout]   --> src/lib.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub fn define_command(&mut self, name: &str, args: Vec<(ParameterFormat, ParameterType)>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]   --> src/lib.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn parse(&mut self) -> Vec<Result<Token, FinlError>> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push_eol_text_block`
[INFO] [stdout]   --> src/lib.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 97 |     fn push_eol_text_block(&mut self, start: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push_text_block`
[INFO] [stdout]    --> src/lib.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn push_text_block(&mut self, start: usize, end: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push_error`
[INFO] [stdout]    --> src/lib.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn push_error(&mut self, error: FinlError) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push_command`
[INFO] [stdout]    --> src/lib.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 |     fn push_command(&mut self, command: Rc<Command>, args: Vec<Token>, column: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `finl_parse` due to 2 previous errors; 71 warnings emitted
[INFO] [stdout] warning: associated function is never used: `push_token`
[INFO] [stdout]    --> src/lib.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 |     fn push_token(&mut self, token: Token) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `skip_whitespace`
[INFO] [stdout]    --> src/lib.rs:118:8
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn skip_whitespace(&mut self) -> SkipWhiteSpaceOutcome {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_line`
[INFO] [stdout]    --> src/lib.rs:150:8
[INFO] [stdout]     |
[INFO] [stdout] 150 |     fn next_line(&mut self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `undefined_command`
[INFO] [stdout]    --> src/lib.rs:166:8
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn undefined_command(&self, command_name: String, column: usize) -> FinlError {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unimplemented`
[INFO] [stdout]    --> src/lib.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout] 171 |     fn unimplemented(&self, column: usize) -> FinlError {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `blank_line_while_parsing_command_arguments`
[INFO] [stdout]    --> src/lib.rs:176:8
[INFO] [stdout]     |
[INFO] [stdout] 176 |     fn blank_line_while_parsing_command_arguments(&self, command_name: String, arg_number: usize) -> FinlError {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unexpected_eof_while_parsing_command_arguments`
[INFO] [stdout]    --> src/lib.rs:183:8
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn unexpected_eof_while_parsing_command_arguments(&self, command_name: String, arg_number: usize) -> FinlError {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unexpected_close_brace`
[INFO] [stdout]    --> src/lib.rs:189:8
[INFO] [stdout]     |
[INFO] [stdout] 189 |     fn unexpected_close_brace(&self, group_type: Option<GroupType>, column: usize) -> FinlError {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `text_parse`
[INFO] [stdout]    --> src/lib.rs:194:8
[INFO] [stdout]     |
[INFO] [stdout] 194 |     fn text_parse(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_column`
[INFO] [stdout]    --> src/lib.rs:255:8
[INFO] [stdout]     |
[INFO] [stdout] 255 |     fn get_column(&mut self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `command_parse`
[INFO] [stdout]    --> src/lib.rs:267:8
[INFO] [stdout]     |
[INFO] [stdout] 267 |     fn command_parse(&mut self, command_context: CommandContext)  {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_command_name`
[INFO] [stdout]    --> src/lib.rs:303:8
[INFO] [stdout]     |
[INFO] [stdout] 303 |     fn get_command_name(&mut self, command_context: &CommandContext) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_required_argument`
[INFO] [stdout]    --> src/lib.rs:355:8
[INFO] [stdout]     |
[INFO] [stdout] 355 |     fn parse_required_argument(&mut self, command: &String, parameter_number: usize, command_context: &CommandContext, ptype: ParameterTy...
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `letter_test`
[INFO] [stdout]    --> src/lib.rs:412:4
[INFO] [stdout]     |
[INFO] [stdout] 412 | fn letter_test(ch: char) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(assert_matches)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 71 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "046f3c216aaf118532988eaf47608b21b046b48a4b5a1186c34120f7385415cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "046f3c216aaf118532988eaf47608b21b046b48a4b5a1186c34120f7385415cb", kill_on_drop: false }`
[INFO] [stdout] 046f3c216aaf118532988eaf47608b21b046b48a4b5a1186c34120f7385415cb