[INFO] cloning repository https://github.com/Dragon987/dim
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Dragon987/dim" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDragon987%2Fdim", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDragon987%2Fdim'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9503d32632dea505f12b361893c16648fc027383
[INFO] testing Dragon987/dim against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDragon987%2Fdim" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Dragon987/dim on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Dragon987/dim
[INFO] finished tweaking git repo https://github.com/Dragon987/dim
[INFO] tweaked toml for git repo https://github.com/Dragon987/dim written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Dragon987/dim already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be2bf419374a01cb97ab3ea0671408eeb4f1d0e2056cc4c775a9ecbcba7671aa
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "be2bf419374a01cb97ab3ea0671408eeb4f1d0e2056cc4c775a9ecbcba7671aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be2bf419374a01cb97ab3ea0671408eeb4f1d0e2056cc4c775a9ecbcba7671aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be2bf419374a01cb97ab3ea0671408eeb4f1d0e2056cc4c775a9ecbcba7671aa", kill_on_drop: false }`
[INFO] [stdout] be2bf419374a01cb97ab3ea0671408eeb4f1d0e2056cc4c775a9ecbcba7671aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78725278b66526d8f77ce85008164ec42da0741c3bb267f79dc1173a2d1ad0a9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "78725278b66526d8f77ce85008164ec42da0741c3bb267f79dc1173a2d1ad0a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling dim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/parser.rs:83:21
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn parse_expression(ref mut input: &str) -> Result<Expression, String> {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IntegerLiteral`
[INFO] [stdout]   --> src/token.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     IntegerLiteral,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FloatLiteral`
[INFO] [stdout]   --> src/token.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     FloatLiteral,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Identifier`
[INFO] [stdout]   --> src/token.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     Identifier,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Let`
[INFO] [stdout]   --> src/token.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     Let,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Mutable`
[INFO] [stdout]   --> src/token.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     Mutable,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Function`
[INFO] [stdout]   --> src/token.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Function,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Return`
[INFO] [stdout]   --> src/token.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Return,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Break`
[INFO] [stdout]   --> src/token.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Break,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Continue`
[INFO] [stdout]   --> src/token.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     Continue,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `For`
[INFO] [stdout]   --> src/token.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     For,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `While`
[INFO] [stdout]   --> src/token.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     While,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `If`
[INFO] [stdout]   --> src/token.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     If,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Elif`
[INFO] [stdout]   --> src/token.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     Elif,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Else`
[INFO] [stdout]   --> src/token.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     Else,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `True`
[INFO] [stdout]   --> src/token.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     True,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `False`
[INFO] [stdout]   --> src/token.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     False,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `next`
[INFO] [stdout]  --> src/lexer.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn next(input: &str) -> Result<(&str, Token), String> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `peek`
[INFO] [stdout]   --> src/lexer.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn peek(input: &str) -> Result<Token, String> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `skip_whitespace`
[INFO] [stdout]   --> src/lexer.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn skip_whitespace<'input>(mut input: &'input str) -> &'input str {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lex_operators`
[INFO] [stdout]   --> src/lexer.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn lex_operators<'input>(input: &'input str, operators: &'static str) -> Option<Token<'input>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lex_numbers`
[INFO] [stdout]   --> src/lexer.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn lex_numbers(input: &str) -> Option<Token> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lex_ident`
[INFO] [stdout]    --> src/lexer.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn lex_ident(input: &str) -> Option<Token> {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `check_keyword`
[INFO] [stdout]    --> src/lexer.rs:116:4
[INFO] [stdout]     |
[INFO] [stdout] 116 | fn check_keyword(literal: &str) -> Token {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Program`
[INFO] [stdout]  --> src/ast.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type Program<'a> = Vec<Statement<'a>>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Statement`
[INFO] [stdout]  --> src/ast.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum Statement<'a> {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Expression`
[INFO] [stdout]   --> src/ast.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum Expression<'a> {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse`
[INFO] [stdout]   --> src/parser.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn parse(mut input: &str) -> Result<Program, String> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_statement`
[INFO] [stdout]   --> src/parser.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn parse_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_let_statement`
[INFO] [stdout]   --> src/parser.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn parse_let_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_mutable_statement`
[INFO] [stdout]   --> src/parser.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn parse_mutable_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_return_statement`
[INFO] [stdout]   --> src/parser.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn parse_return_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_break_statement`
[INFO] [stdout]   --> src/parser.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn parse_break_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_continue_statement`
[INFO] [stdout]   --> src/parser.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn parse_continue_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_expression_statement`
[INFO] [stdout]   --> src/parser.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn parse_expression_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_expression`
[INFO] [stdout]   --> src/parser.rs:83:4
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn parse_expression(ref mut input: &str) -> Result<Expression, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `expect`
[INFO] [stdout]   --> src/parser.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn expect(ref mut input: &str, expect: TokenKind) -> Result<Token, String> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `try_expect`
[INFO] [stdout]   --> src/parser.rs:99:4
[INFO] [stdout]    |
[INFO] [stdout] 99 | fn try_expect(input: &str, expect: TokenKind) -> Result<Option<Token>, String> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 38 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "78725278b66526d8f77ce85008164ec42da0741c3bb267f79dc1173a2d1ad0a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78725278b66526d8f77ce85008164ec42da0741c3bb267f79dc1173a2d1ad0a9", kill_on_drop: false }`
[INFO] [stdout] 78725278b66526d8f77ce85008164ec42da0741c3bb267f79dc1173a2d1ad0a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f21e98f2a0de80acc0578af416ceb74606ce7f41a23c645a468e7e081097ea0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2f21e98f2a0de80acc0578af416ceb74606ce7f41a23c645a468e7e081097ea0", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/parser.rs:83:21
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn parse_expression(ref mut input: &str) -> Result<Expression, String> {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling dim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `IntegerLiteral`
[INFO] [stdout]   --> src/token.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     IntegerLiteral,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FloatLiteral`
[INFO] [stdout]   --> src/token.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     FloatLiteral,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Identifier`
[INFO] [stdout]   --> src/token.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     Identifier,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Let`
[INFO] [stdout]   --> src/token.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     Let,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Mutable`
[INFO] [stdout]   --> src/token.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     Mutable,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Function`
[INFO] [stdout]   --> src/token.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Function,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Return`
[INFO] [stdout]   --> src/token.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Return,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Break`
[INFO] [stdout]   --> src/token.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Break,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Continue`
[INFO] [stdout]   --> src/token.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     Continue,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `For`
[INFO] [stdout]   --> src/token.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     For,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `While`
[INFO] [stdout]   --> src/token.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     While,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `If`
[INFO] [stdout]   --> src/token.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     If,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Elif`
[INFO] [stdout]   --> src/token.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     Elif,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Else`
[INFO] [stdout]   --> src/token.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     Else,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `True`
[INFO] [stdout]   --> src/token.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     True,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `False`
[INFO] [stdout]   --> src/token.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     False,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `next`
[INFO] [stdout]  --> src/lexer.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn next(input: &str) -> Result<(&str, Token), String> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `peek`
[INFO] [stdout]   --> src/lexer.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn peek(input: &str) -> Result<Token, String> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `skip_whitespace`
[INFO] [stdout]   --> src/lexer.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn skip_whitespace<'input>(mut input: &'input str) -> &'input str {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lex_operators`
[INFO] [stdout]   --> src/lexer.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn lex_operators<'input>(input: &'input str, operators: &'static str) -> Option<Token<'input>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lex_numbers`
[INFO] [stdout]   --> src/lexer.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn lex_numbers(input: &str) -> Option<Token> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lex_ident`
[INFO] [stdout]    --> src/lexer.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn lex_ident(input: &str) -> Option<Token> {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `check_keyword`
[INFO] [stdout]    --> src/lexer.rs:116:4
[INFO] [stdout]     |
[INFO] [stdout] 116 | fn check_keyword(literal: &str) -> Token {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Program`
[INFO] [stdout]  --> src/ast.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type Program<'a> = Vec<Statement<'a>>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Statement`
[INFO] [stdout]  --> src/ast.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum Statement<'a> {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Expression`
[INFO] [stdout]   --> src/ast.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum Expression<'a> {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse`
[INFO] [stdout]   --> src/parser.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn parse(mut input: &str) -> Result<Program, String> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_statement`
[INFO] [stdout]   --> src/parser.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn parse_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_let_statement`
[INFO] [stdout]   --> src/parser.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn parse_let_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_mutable_statement`
[INFO] [stdout]   --> src/parser.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn parse_mutable_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_return_statement`
[INFO] [stdout]   --> src/parser.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn parse_return_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_break_statement`
[INFO] [stdout]   --> src/parser.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn parse_break_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_continue_statement`
[INFO] [stdout]   --> src/parser.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn parse_continue_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_expression_statement`
[INFO] [stdout]   --> src/parser.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn parse_expression_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_expression`
[INFO] [stdout]   --> src/parser.rs:83:4
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn parse_expression(ref mut input: &str) -> Result<Expression, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `expect`
[INFO] [stdout]   --> src/parser.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn expect(ref mut input: &str, expect: TokenKind) -> Result<Token, String> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `try_expect`
[INFO] [stdout]   --> src/parser.rs:99:4
[INFO] [stdout]    |
[INFO] [stdout] 99 | fn try_expect(input: &str, expect: TokenKind) -> Result<Option<Token>, String> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 38 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/parser.rs:83:21
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn parse_expression(ref mut input: &str) -> Result<Expression, String> {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Program`
[INFO] [stdout]  --> src/ast.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type Program<'a> = Vec<Statement<'a>>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Statement`
[INFO] [stdout]  --> src/ast.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum Statement<'a> {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Expression`
[INFO] [stdout]   --> src/ast.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum Expression<'a> {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse`
[INFO] [stdout]   --> src/parser.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn parse(mut input: &str) -> Result<Program, String> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_statement`
[INFO] [stdout]   --> src/parser.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn parse_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_let_statement`
[INFO] [stdout]   --> src/parser.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn parse_let_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_mutable_statement`
[INFO] [stdout]   --> src/parser.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn parse_mutable_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_return_statement`
[INFO] [stdout]   --> src/parser.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn parse_return_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_break_statement`
[INFO] [stdout]   --> src/parser.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn parse_break_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_continue_statement`
[INFO] [stdout]   --> src/parser.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn parse_continue_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_expression_statement`
[INFO] [stdout]   --> src/parser.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn parse_expression_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_expression`
[INFO] [stdout]   --> src/parser.rs:83:4
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn parse_expression(ref mut input: &str) -> Result<Expression, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `expect`
[INFO] [stdout]   --> src/parser.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn expect(ref mut input: &str, expect: TokenKind) -> Result<Token, String> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `try_expect`
[INFO] [stdout]   --> src/parser.rs:99:4
[INFO] [stdout]    |
[INFO] [stdout] 99 | fn try_expect(input: &str, expect: TokenKind) -> Result<Option<Token>, String> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "2f21e98f2a0de80acc0578af416ceb74606ce7f41a23c645a468e7e081097ea0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f21e98f2a0de80acc0578af416ceb74606ce7f41a23c645a468e7e081097ea0", kill_on_drop: false }`
[INFO] [stdout] 2f21e98f2a0de80acc0578af416ceb74606ce7f41a23c645a468e7e081097ea0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 79dfb6ba1e2f20e928bfd820b5150abb6450a1844abd8bc54e42a4ede508d4f3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "79dfb6ba1e2f20e928bfd820b5150abb6450a1844abd8bc54e42a4ede508d4f3", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> src/parser.rs:83:21
[INFO] [stderr]    |
[INFO] [stderr] 83 | fn parse_expression(ref mut input: &str) -> Result<Expression, String> {
[INFO] [stderr]    |                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Program`
[INFO] [stderr]  --> src/ast.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub type Program<'a> = Vec<Statement<'a>>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Statement`
[INFO] [stderr]  --> src/ast.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub enum Statement<'a> {
[INFO] [stderr]   |          ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Expression`
[INFO] [stderr]   --> src/ast.rs:26:10
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub enum Expression<'a> {
[INFO] [stderr]    |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse`
[INFO] [stderr]   --> src/parser.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn parse(mut input: &str) -> Result<Program, String> {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_statement`
[INFO] [stderr]   --> src/parser.rs:22:4
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn parse_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_let_statement`
[INFO] [stderr]   --> src/parser.rs:33:4
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn parse_let_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_mutable_statement`
[INFO] [stderr]   --> src/parser.rs:42:4
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn parse_mutable_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_return_statement`
[INFO] [stderr]   --> src/parser.rs:51:4
[INFO] [stderr]    |
[INFO] [stderr] 51 | fn parse_return_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_break_statement`
[INFO] [stderr]   --> src/parser.rs:62:4
[INFO] [stderr]    |
[INFO] [stderr] 62 | fn parse_break_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_continue_statement`
[INFO] [stderr]   --> src/parser.rs:73:4
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn parse_continue_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_expression_statement`
[INFO] [stderr]   --> src/parser.rs:79:4
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn parse_expression_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_expression`
[INFO] [stderr]   --> src/parser.rs:83:4
[INFO] [stderr]    |
[INFO] [stderr] 83 | fn parse_expression(ref mut input: &str) -> Result<Expression, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `expect`
[INFO] [stderr]   --> src/parser.rs:88:4
[INFO] [stderr]    |
[INFO] [stderr] 88 | fn expect(ref mut input: &str, expect: TokenKind) -> Result<Token, String> {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `try_expect`
[INFO] [stderr]   --> src/parser.rs:99:4
[INFO] [stderr]    |
[INFO] [stderr] 99 | fn try_expect(input: &str, expect: TokenKind) -> Result<Option<Token>, String> {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> src/parser.rs:83:21
[INFO] [stderr]    |
[INFO] [stderr] 83 | fn parse_expression(ref mut input: &str) -> Result<Expression, String> {
[INFO] [stderr]    |                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IntegerLiteral`
[INFO] [stderr]   --> src/token.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     IntegerLiteral,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FloatLiteral`
[INFO] [stderr]   --> src/token.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     FloatLiteral,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Identifier`
[INFO] [stderr]   --> src/token.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     Identifier,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Let`
[INFO] [stderr]   --> src/token.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     Let,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Mutable`
[INFO] [stderr]   --> src/token.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     Mutable,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Function`
[INFO] [stderr]   --> src/token.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     Function,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Return`
[INFO] [stderr]   --> src/token.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     Return,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Break`
[INFO] [stderr]   --> src/token.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     Break,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Continue`
[INFO] [stderr]   --> src/token.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     Continue,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `For`
[INFO] [stderr]   --> src/token.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     For,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `While`
[INFO] [stderr]   --> src/token.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     While,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `If`
[INFO] [stderr]   --> src/token.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     If,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Elif`
[INFO] [stderr]   --> src/token.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     Elif,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Else`
[INFO] [stderr]   --> src/token.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     Else,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `True`
[INFO] [stderr]   --> src/token.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     True,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `False`
[INFO] [stderr]   --> src/token.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     False,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `next`
[INFO] [stderr]  --> src/lexer.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn next(input: &str) -> Result<(&str, Token), String> {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `peek`
[INFO] [stderr]   --> src/lexer.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub fn peek(input: &str) -> Result<Token, String> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `skip_whitespace`
[INFO] [stderr]   --> src/lexer.rs:37:4
[INFO] [stderr]    |
[INFO] [stderr] 37 | fn skip_whitespace<'input>(mut input: &'input str) -> &'input str {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `lex_operators`
[INFO] [stderr]   --> src/lexer.rs:70:4
[INFO] [stderr]    |
[INFO] [stderr] 70 | fn lex_operators<'input>(input: &'input str, operators: &'static str) -> Option<Token<'input>> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `lex_numbers`
[INFO] [stderr]   --> src/lexer.rs:79:4
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn lex_numbers(input: &str) -> Option<Token> {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `lex_ident`
[INFO] [stderr]    --> src/lexer.rs:101:4
[INFO] [stderr]     |
[INFO] [stderr] 101 | fn lex_ident(input: &str) -> Option<Token> {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `check_keyword`
[INFO] [stderr]    --> src/lexer.rs:116:4
[INFO] [stderr]     |
[INFO] [stderr] 116 | fn check_keyword(literal: &str) -> Token {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Program`
[INFO] [stderr]  --> src/ast.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub type Program<'a> = Vec<Statement<'a>>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Statement`
[INFO] [stderr]  --> src/ast.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub enum Statement<'a> {
[INFO] [stderr]   |          ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Expression`
[INFO] [stderr]   --> src/ast.rs:26:10
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub enum Expression<'a> {
[INFO] [stderr]    |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse`
[INFO] [stderr]   --> src/parser.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn parse(mut input: &str) -> Result<Program, String> {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_statement`
[INFO] [stderr]   --> src/parser.rs:22:4
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn parse_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_let_statement`
[INFO] [stderr]   --> src/parser.rs:33:4
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn parse_let_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_mutable_statement`
[INFO] [stderr]   --> src/parser.rs:42:4
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn parse_mutable_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_return_statement`
[INFO] [stderr]   --> src/parser.rs:51:4
[INFO] [stderr]    |
[INFO] [stderr] 51 | fn parse_return_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_break_statement`
[INFO] [stderr]   --> src/parser.rs:62:4
[INFO] [stderr]    |
[INFO] [stderr] 62 | fn parse_break_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_continue_statement`
[INFO] [stderr]   --> src/parser.rs:73:4
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn parse_continue_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_expression_statement`
[INFO] [stderr]   --> src/parser.rs:79:4
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn parse_expression_statement(ref mut input: &str) -> Result<Statement, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_expression`
[INFO] [stderr]   --> src/parser.rs:83:4
[INFO] [stderr]    |
[INFO] [stderr] 83 | fn parse_expression(ref mut input: &str) -> Result<Expression, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `expect`
[INFO] [stderr]   --> src/parser.rs:88:4
[INFO] [stderr]    |
[INFO] [stderr] 88 | fn expect(ref mut input: &str, expect: TokenKind) -> Result<Token, String> {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `try_expect`
[INFO] [stderr]   --> src/parser.rs:99:4
[INFO] [stderr]    |
[INFO] [stderr] 99 | fn try_expect(input: &str, expect: TokenKind) -> Result<Option<Token>, String> {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 38 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dim-d4508d2744815686
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test lexer::tests::test_lexer_next ... ok
[INFO] [stdout] test lexer::tests::test_lexer_peek ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dim-d088cd5f7de8456d
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests dim
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "79dfb6ba1e2f20e928bfd820b5150abb6450a1844abd8bc54e42a4ede508d4f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79dfb6ba1e2f20e928bfd820b5150abb6450a1844abd8bc54e42a4ede508d4f3", kill_on_drop: false }`
[INFO] [stdout] 79dfb6ba1e2f20e928bfd820b5150abb6450a1844abd8bc54e42a4ede508d4f3