[INFO] cloning repository https://github.com/aluethi/Magnolia
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aluethi/Magnolia" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faluethi%2FMagnolia", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faluethi%2FMagnolia'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dfa5f4a65afb1a62ffc954e43b458569cf3998b2
[INFO] checking aluethi/Magnolia against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faluethi%2FMagnolia" "/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/aluethi/Magnolia
[INFO] finished tweaking git repo https://github.com/aluethi/Magnolia
[INFO] tweaked toml for git repo https://github.com/aluethi/Magnolia written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/aluethi/Magnolia on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/aluethi/Magnolia 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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb54e087fcf84485d14874514e57f541586e0419ad691d32cd3a5be95069715a
[INFO] running `Command { std: "docker" "start" "-a" "fb54e087fcf84485d14874514e57f541586e0419ad691d32cd3a5be95069715a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb54e087fcf84485d14874514e57f541586e0419ad691d32cd3a5be95069715a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb54e087fcf84485d14874514e57f541586e0419ad691d32cd3a5be95069715a", kill_on_drop: false }`
[INFO] [stdout] fb54e087fcf84485d14874514e57f541586e0419ad691d32cd3a5be95069715a
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcc74ec26df33fc3e787be02c52a00695c4b24d8b5351ca2f9907b21b7c084c1
[INFO] running `Command { std: "docker" "start" "-a" "dcc74ec26df33fc3e787be02c52a00695c4b24d8b5351ca2f9907b21b7c084c1", kill_on_drop: false }`
[INFO] [stderr]     Checking mag v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:33:11
[INFO] [stdout]    |
[INFO] [stdout] 33 |         if(input.is_empty()) {
[INFO] [stdout]    |           ^                ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 33 -         if(input.is_empty()) {
[INFO] [stdout] 33 +         if input.is_empty() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:33:11
[INFO] [stdout]    |
[INFO] [stdout] 33 |         if(input.is_empty()) {
[INFO] [stdout]    |           ^                ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 33 -         if(input.is_empty()) {
[INFO] [stdout] 33 +         if input.is_empty() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src`
[INFO] [stdout]    --> src/lexer.rs:197:27
[INFO] [stdout]     |
[INFO] [stdout] 197 |     fn keyword(&mut self, src: &'a str) -> Option<Token<'a>> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_src`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src`
[INFO] [stdout]    --> src/lexer.rs:212:30
[INFO] [stdout]     |
[INFO] [stdout] 212 |     fn identifier(&mut self, src: &'a str) -> Option<Token<'a>> {
[INFO] [stdout]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_src`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error` is never used
[INFO] [stdout]   --> src/main.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn error(line: usize, message: &str) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `report` is never used
[INFO] [stdout]   --> src/main.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn report(line: usize, location: &str, message: &str) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind` and `span` are never read
[INFO] [stdout]  --> src/token.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Token<'a> {
[INFO] [stdout]   |            ----- fields in this struct
[INFO] [stdout] 3 |     pub kind: TokenKind<'a>,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 4 |     pub span: Span,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `start` and `end` are never read
[INFO] [stdout]   --> src/token.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Span {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 18 |     pub start: u32, // inclusive
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 19 |     pub end: u32, // exclusive
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Span` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/token.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 |     Identifier(&'a str), // starts with $
[INFO] [stdout]    |     ---------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 29 -     Identifier(&'a str), // starts with $
[INFO] [stdout] 29 +     Identifier(()), // starts with $
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/token.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     String(&'a str),
[INFO] [stdout]    |     ------ ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 30 -     String(&'a str),
[INFO] [stdout] 30 +     String(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/token.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |     Integer(IntegerKind<'a>),
[INFO] [stdout]    |     ------- ^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 31 -     Integer(IntegerKind<'a>),
[INFO] [stdout] 31 +     Integer(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/token.rs:32:11
[INFO] [stdout]    |
[INFO] [stdout] 32 |     Float(FloatKind<'a>),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 32 -     Float(FloatKind<'a>),
[INFO] [stdout] 32 +     Float(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/token.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |     Keyword(&'a str),
[INFO] [stdout]    |     ------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 34 -     Keyword(&'a str),
[INFO] [stdout] 34 +     Keyword(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/token.rs:35:14
[INFO] [stdout]    |
[INFO] [stdout] 35 |     Reserved(&'a str),
[INFO] [stdout]    |     -------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 35 -     Reserved(&'a str),
[INFO] [stdout] 35 +     Reserved(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Eof` is never constructed
[INFO] [stdout]   --> src/token.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub enum TokenKind<'a> {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 38 |     Eof,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `src` and `negative` are never read
[INFO] [stdout]   --> src/token.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Decimal {
[INFO] [stdout]    |     ------- fields in this variant
[INFO] [stdout] 44 |         src: &'a str,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 45 |         negative: bool,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IntegerKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `src` and `negative` are never read
[INFO] [stdout]   --> src/token.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     Hex {
[INFO] [stdout]    |     --- fields in this variant
[INFO] [stdout] 48 |         src: &'a str,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 49 |         negative: bool,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IntegerKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `src` and `negative` are never read
[INFO] [stdout]   --> src/token.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     Inf {
[INFO] [stdout]    |     --- fields in this variant
[INFO] [stdout] 56 |         src: &'a str,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 57 |         negative: bool,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FloatKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `src`, `negative`, and `value` are never read
[INFO] [stdout]   --> src/token.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     Nan {
[INFO] [stdout]    |     --- fields in this variant
[INFO] [stdout] 60 |         src: &'a str,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 61 |         negative: bool,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 62 |         value: Option<u64>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FloatKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `src`, `negative`, `integral`, `fractional`, and `exponent` are never read
[INFO] [stdout]   --> src/token.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     Val {
[INFO] [stdout]    |     --- fields in this variant
[INFO] [stdout] 65 |         src: &'a str,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 66 |         negative: bool,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 67 |         integral: &'a str,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 68 |         fractional: &'a str,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 69 |         exponent: &'a str,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FloatKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src`
[INFO] [stdout]    --> src/lexer.rs:197:27
[INFO] [stdout]     |
[INFO] [stdout] 197 |     fn keyword(&mut self, src: &'a str) -> Option<Token<'a>> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_src`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src`
[INFO] [stdout]    --> src/lexer.rs:212:30
[INFO] [stdout]     |
[INFO] [stdout] 212 |     fn identifier(&mut self, src: &'a str) -> Option<Token<'a>> {
[INFO] [stdout]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_src`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |         run_file(args[1].as_str());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let _ = run_file(args[1].as_str());
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         run_prompt();
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let _ = run_prompt();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error` is never used
[INFO] [stdout]   --> src/main.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn error(line: usize, message: &str) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `report` is never used
[INFO] [stdout]   --> src/main.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn report(line: usize, location: &str, message: &str) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind` and `span` are never read
[INFO] [stdout]  --> src/token.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Token<'a> {
[INFO] [stdout]   |            ----- fields in this struct
[INFO] [stdout] 3 |     pub kind: TokenKind<'a>,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 4 |     pub span: Span,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `start` and `end` are never read
[INFO] [stdout]   --> src/token.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Span {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 18 |     pub start: u32, // inclusive
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 19 |     pub end: u32, // exclusive
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Span` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/token.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 |     Identifier(&'a str), // starts with $
[INFO] [stdout]    |     ---------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 29 -     Identifier(&'a str), // starts with $
[INFO] [stdout] 29 +     Identifier(()), // starts with $
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/token.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     String(&'a str),
[INFO] [stdout]    |     ------ ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 30 -     String(&'a str),
[INFO] [stdout] 30 +     String(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/token.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |     Integer(IntegerKind<'a>),
[INFO] [stdout]    |     ------- ^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 31 -     Integer(IntegerKind<'a>),
[INFO] [stdout] 31 +     Integer(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/token.rs:32:11
[INFO] [stdout]    |
[INFO] [stdout] 32 |     Float(FloatKind<'a>),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 32 -     Float(FloatKind<'a>),
[INFO] [stdout] 32 +     Float(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/token.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |     Keyword(&'a str),
[INFO] [stdout]    |     ------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 34 -     Keyword(&'a str),
[INFO] [stdout] 34 +     Keyword(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/token.rs:35:14
[INFO] [stdout]    |
[INFO] [stdout] 35 |     Reserved(&'a str),
[INFO] [stdout]    |     -------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 35 -     Reserved(&'a str),
[INFO] [stdout] 35 +     Reserved(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Eof` is never constructed
[INFO] [stdout]   --> src/token.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub enum TokenKind<'a> {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 38 |     Eof,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `src` and `negative` are never read
[INFO] [stdout]   --> src/token.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Decimal {
[INFO] [stdout]    |     ------- fields in this variant
[INFO] [stdout] 44 |         src: &'a str,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 45 |         negative: bool,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IntegerKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `src` and `negative` are never read
[INFO] [stdout]   --> src/token.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     Hex {
[INFO] [stdout]    |     --- fields in this variant
[INFO] [stdout] 48 |         src: &'a str,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 49 |         negative: bool,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IntegerKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `src` and `negative` are never read
[INFO] [stdout]   --> src/token.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     Inf {
[INFO] [stdout]    |     --- fields in this variant
[INFO] [stdout] 56 |         src: &'a str,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 57 |         negative: bool,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FloatKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `src`, `negative`, and `value` are never read
[INFO] [stdout]   --> src/token.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     Nan {
[INFO] [stdout]    |     --- fields in this variant
[INFO] [stdout] 60 |         src: &'a str,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 61 |         negative: bool,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 62 |         value: Option<u64>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FloatKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `src`, `negative`, `integral`, `fractional`, and `exponent` are never read
[INFO] [stdout]   --> src/token.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     Val {
[INFO] [stdout]    |     --- fields in this variant
[INFO] [stdout] 65 |         src: &'a str,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 66 |         negative: bool,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 67 |         integral: &'a str,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 68 |         fractional: &'a str,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 69 |         exponent: &'a str,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FloatKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |         run_file(args[1].as_str());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let _ = run_file(args[1].as_str());
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         run_prompt();
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let _ = run_prompt();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "dcc74ec26df33fc3e787be02c52a00695c4b24d8b5351ca2f9907b21b7c084c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcc74ec26df33fc3e787be02c52a00695c4b24d8b5351ca2f9907b21b7c084c1", kill_on_drop: false }`
[INFO] [stdout] dcc74ec26df33fc3e787be02c52a00695c4b24d8b5351ca2f9907b21b7c084c1
