[INFO] fetching crate xur 0.1.0...
[INFO] checking xur-0.1.0 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate xur 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate xur 0.1.0
[INFO] finished tweaking crates.io crate xur 0.1.0
[INFO] tweaked toml for crates.io crate xur 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate xur 0.1.0 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate xur 0.1.0 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5070563aa920c3b75a74a83a119f6c2b174a6b4418942fda9cc08d4b8b5e84fd
[INFO] running `Command { std: "docker" "start" "-a" "5070563aa920c3b75a74a83a119f6c2b174a6b4418942fda9cc08d4b8b5e84fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5070563aa920c3b75a74a83a119f6c2b174a6b4418942fda9cc08d4b8b5e84fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5070563aa920c3b75a74a83a119f6c2b174a6b4418942fda9cc08d4b8b5e84fd", kill_on_drop: false }`
[INFO] [stdout] 5070563aa920c3b75a74a83a119f6c2b174a6b4418942fda9cc08d4b8b5e84fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 492948b5bb822954b6da2563db8db1547766caced3f56877c0979419037d6af0
[INFO] running `Command { std: "docker" "start" "-a" "492948b5bb822954b6da2563db8db1547766caced3f56877c0979419037d6af0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling serde_json v1.0.73
[INFO] [stderr]    Compiling anyhow v1.0.52
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]     Checking tracing-subscriber v0.2.25
[INFO] [stderr]     Checking xur v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::ast::value::Statement::Expr`
[INFO] [stdout]  --> src/ast/parser.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::ast::value::Statement::Expr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow`
[INFO] [stdout]  --> src/ast/parser.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | use anyhow::{anyhow, bail, Context};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TokenKind` and `Token`
[INFO] [stdout]  --> src/ast/value.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::lexer::{Token, TokenKind};
[INFO] [stdout]   |                    ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Range`
[INFO] [stdout]  --> src/xurvm/var.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{collections::VecDeque, ops::Range};
[INFO] [stdout]   |                                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow`
[INFO] [stdout]  --> src/xurvm/var.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | use anyhow::{anyhow, bail, Context};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::PhantomData`
[INFO] [stdout]  --> src/xurvm/vmcore.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::marker::PhantomData;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow`
[INFO] [stdout]  --> src/xurvm/vmcore.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 | use anyhow::{anyhow, bail, Context};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `info`
[INFO] [stdout]  --> src/xurvm/vmcore.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tracing::{debug, info};
[INFO] [stdout]   |                      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `xurvm::XurVM`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use xurvm::XurVM;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/xurvm/vmcore.rs:113:13
[INFO] [stdout]     |
[INFO] [stdout] 112 |               return Ok(Value::Function(fn_ref));
[INFO] [stdout]     |               ---------------------------------- any code following this expression is unreachable
[INFO] [stdout] 113 | /             Ok(Value::create_fn(
[INFO] [stdout] 114 | |                 &format!("__sym_bind_@{}", value_1),
[INFO] [stdout] 115 | |                 1,
[INFO] [stdout] 116 | |                 |env, args| {
[INFO] [stdout] ...   |
[INFO] [stdout] 121 | |                 },
[INFO] [stdout] 122 | |             ))
[INFO] [stdout]     | |______________^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::value::Statement::Expr`
[INFO] [stdout]  --> src/ast/parser.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::ast::value::Statement::Expr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow`
[INFO] [stdout]  --> src/ast/parser.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | use anyhow::{anyhow, bail, Context};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TokenKind` and `Token`
[INFO] [stdout]  --> src/ast/value.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::lexer::{Token, TokenKind};
[INFO] [stdout]   |                    ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Range`
[INFO] [stdout]  --> src/xurvm/var.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{collections::VecDeque, ops::Range};
[INFO] [stdout]   |                                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow`
[INFO] [stdout]  --> src/xurvm/var.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | use anyhow::{anyhow, bail, Context};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::PhantomData`
[INFO] [stdout]  --> src/xurvm/vmcore.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::marker::PhantomData;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow`
[INFO] [stdout]  --> src/xurvm/vmcore.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 | use anyhow::{anyhow, bail, Context};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `info`
[INFO] [stdout]  --> src/xurvm/vmcore.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tracing::{debug, info};
[INFO] [stdout]   |                      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `xurvm::XurVM`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use xurvm::XurVM;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/ast/parser.rs:108:39
[INFO] [stdout]     |
[INFO] [stdout] 108 |                 TokenKind::Identifier(id) => {
[INFO] [stdout]     |                                       ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/xurvm/vmcore.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |             x => bail!("Statement {:?} not supported", x),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/xurvm/vmcore.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 138 |             Statement::Expr(e) => self.run_expr(e),
[INFO] [stdout]     |             ------------------ matches some of the same values
[INFO] [stdout] 139 |             Statement::Empty => Ok(Value::None),
[INFO] [stdout]     |             ---------------- matches some of the same values
[INFO] [stdout] 140 |             x => bail!("Statement {:?} not supported", x),
[INFO] [stdout]     |             ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/xurvm/vmcore.rs:174:21
[INFO] [stdout]     |
[INFO] [stdout] 174 |                 let mut fn_value = self.get_value(*callie)?.get_callable()?;
[INFO] [stdout]     |                     ----^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Boolean` and `None` are never constructed
[INFO] [stdout]  --> src/ast/value.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum LiteralValue {
[INFO] [stdout]   |          ------------ variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 8 |     Boolean(bool),
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 9 |     None,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `LiteralValue` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Plus` and `Dot` are never constructed
[INFO] [stdout]   --> src/lexer/token.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub enum TokenKind {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 16 |     Plus,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     Dot,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenKind` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `length` is never read
[INFO] [stdout]   --> src/lexer/token.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Token {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 27 |     pub kind: TokenKind,
[INFO] [stdout] 28 |     pub length: usize,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `nth` and `second` are never used
[INFO] [stdout]   --> src/lexer/tokenizer.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl<'a> Tokenizer<'a> {
[INFO] [stdout]    | ---------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn nth(&self, i: usize) -> char {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |     pub fn second(&self) -> char {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/xurvm/vmcore.rs:113:13
[INFO] [stdout]     |
[INFO] [stdout] 112 |               return Ok(Value::Function(fn_ref));
[INFO] [stdout]     |               ---------------------------------- any code following this expression is unreachable
[INFO] [stdout] 113 | /             Ok(Value::create_fn(
[INFO] [stdout] 114 | |                 &format!("__sym_bind_@{}", value_1),
[INFO] [stdout] 115 | |                 1,
[INFO] [stdout] 116 | |                 |env, args| {
[INFO] [stdout] ...   |
[INFO] [stdout] 121 | |                 },
[INFO] [stdout] 122 | |             ))
[INFO] [stdout]     | |______________^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/ast/parser.rs:108:39
[INFO] [stdout]     |
[INFO] [stdout] 108 |                 TokenKind::Identifier(id) => {
[INFO] [stdout]     |                                       ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/xurvm/vmcore.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |             x => bail!("Statement {:?} not supported", x),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/xurvm/vmcore.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 138 |             Statement::Expr(e) => self.run_expr(e),
[INFO] [stdout]     |             ------------------ matches some of the same values
[INFO] [stdout] 139 |             Statement::Empty => Ok(Value::None),
[INFO] [stdout]     |             ---------------- matches some of the same values
[INFO] [stdout] 140 |             x => bail!("Statement {:?} not supported", x),
[INFO] [stdout]     |             ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/xurvm/vmcore.rs:174:21
[INFO] [stdout]     |
[INFO] [stdout] 174 |                 let mut fn_value = self.get_value(*callie)?.get_callable()?;
[INFO] [stdout]     |                     ----^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Boolean` and `None` are never constructed
[INFO] [stdout]  --> src/ast/value.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum LiteralValue {
[INFO] [stdout]   |          ------------ variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 8 |     Boolean(bool),
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 9 |     None,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `LiteralValue` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Plus` and `Dot` are never constructed
[INFO] [stdout]   --> src/lexer/token.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub enum TokenKind {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 16 |     Plus,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     Dot,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenKind` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `length` is never read
[INFO] [stdout]   --> src/lexer/token.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Token {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 27 |     pub kind: TokenKind,
[INFO] [stdout] 28 |     pub length: usize,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `nth` and `second` are never used
[INFO] [stdout]   --> src/lexer/tokenizer.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl<'a> Tokenizer<'a> {
[INFO] [stdout]    | ---------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn nth(&self, i: usize) -> char {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |     pub fn second(&self) -> char {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.52s
[INFO] running `Command { std: "docker" "inspect" "492948b5bb822954b6da2563db8db1547766caced3f56877c0979419037d6af0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "492948b5bb822954b6da2563db8db1547766caced3f56877c0979419037d6af0", kill_on_drop: false }`
[INFO] [stdout] 492948b5bb822954b6da2563db8db1547766caced3f56877c0979419037d6af0
