[INFO] cloning repository https://github.com/itarato/langtwo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itarato/langtwo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitarato%2Flangtwo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitarato%2Flangtwo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be6a7ee4c83d5d78fb0481370899058bfd3dfdc2
[INFO] checking itarato/langtwo against 895980e0290783bb09b1ccf1b11f14eb09b10430 for pr-160186
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitarato%2Flangtwo" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/itarato/langtwo
[INFO] finished tweaking git repo https://github.com/itarato/langtwo
[INFO] tweaked toml for git repo https://github.com/itarato/langtwo written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/itarato/langtwo on toolchain 895980e0290783bb09b1ccf1b11f14eb09b10430
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/itarato/langtwo 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" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] aaf3ca0d9a5ca8cd6a173b08f1eb101b603929a2b83c3b0100340188010c67a8
[INFO] running `Command { std: "docker" "start" "aaf3ca0d9a5ca8cd6a173b08f1eb101b603929a2b83c3b0100340188010c67a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aaf3ca0d9a5ca8cd6a173b08f1eb101b603929a2b83c3b0100340188010c67a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "aaf3ca0d9a5ca8cd6a173b08f1eb101b603929a2b83c3b0100340188010c67a8" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aaf3ca0d9a5ca8cd6a173b08f1eb101b603929a2b83c3b0100340188010c67a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "aaf3ca0d9a5ca8cd6a173b08f1eb101b603929a2b83c3b0100340188010c67a8" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking aho-corasick v1.0.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex-automata v0.3.8
[INFO] [stderr]     Checking regex v1.9.5
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking langtwo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::lexer::*`
[INFO] [stdout]    --> src/parser.rs:370:9
[INFO] [stdout]     |
[INFO] [stdout] 370 |     use crate::lexer::*;
[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 variable: `s`
[INFO] [stdout]    --> src/ir_builder.rs:175:26
[INFO] [stdout]     |
[INFO] [stdout] 175 |             AstExpr::Str(s) => unimplemented!(),
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Eq`, `NotEq`, `Lt`, `Lte`, `Gt`, and `Gte` are never constructed
[INFO] [stdout]   --> src/ir.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub enum CondResult {
[INFO] [stdout]    |          ---------- variants in this enum
[INFO] [stdout] 21 |     Eq,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 22 |     NotEq,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 23 |     Lt,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 24 |     Lte,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 25 |     Gt,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 26 |     Gte,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CondResult` has a derived impl for the trait `Debug`, but this is 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: multiple variants are never constructed
[INFO] [stdout]    --> src/ir.rs:37:5
[INFO] [stdout]     |
[INFO] [stdout]  30 | pub enum Operation {
[INFO] [stdout]     |          --------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout]  37 |     PushI(i32),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  61 |     AddI {
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  66 |     SubI {
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  71 |     MulI {
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  76 |     DivI {
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  82 |     Load {
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  86 |     LoadAI {
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  91 |     LoadAO {
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     Store {
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     StoreAI {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     StoreAO {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 |     Ci2i {
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 |     Jump(Reg),
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 129 |
[INFO] [stdout] 130 |     Tbl {
[INFO] [stdout]     |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 160 |     CmpNotEq {
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 172 |     Comp {
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operation` 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 `instructions` and `return_reg` are never read
[INFO] [stdout]    --> src/ir.rs:181:9
[INFO] [stdout]     |
[INFO] [stdout] 180 | pub struct IR {
[INFO] [stdout]     |            -- fields in this struct
[INFO] [stdout] 181 |     pub instructions: Vec<Operation>,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 182 |     pub return_reg: Option<Reg>,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IR` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_eof` is never used
[INFO] [stdout]  --> src/source_reader.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait SourceReader<'a> {
[INFO] [stdout]   |           ------------ method in this trait
[INFO] [stdout] 2 |     fn is_eof(&self) -> bool;
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `STACK_SIZE` is never used
[INFO] [stdout]  --> src/vm.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const STACK_SIZE: usize = 256;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Scope` is never constructed
[INFO] [stdout]  --> src/vm.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Scope {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/vm.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Scope {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 12 |     fn new() -> Scope {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VM` is never constructed
[INFO] [stdout]   --> src/vm.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct VM {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `run`, `reg_set`, and `reg_get` are never used
[INFO] [stdout]    --> src/vm.rs:30:12
[INFO] [stdout]     |
[INFO] [stdout]  29 | impl VM {
[INFO] [stdout]     | ------- associated items in this implementation
[INFO] [stdout]  30 |     pub fn new(ir: IR) -> VM {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  51 |     pub fn run(&mut self) {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 150 |     fn reg_set(&mut self, reg: Reg, value: i32) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     fn reg_get(&self, reg: &Reg) -> i32 {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:355:13
[INFO] [stdout]     |
[INFO] [stdout] 355 |     fn peek(&self) -> Option<&Lexeme> {
[INFO] [stdout]     |             ^^^^^            ^^^^^^^
[INFO] [stdout]     |             |                ||
[INFO] [stdout]     |             |                |the same lifetime is hidden here
[INFO] [stdout]     |             |                the same lifetime is elided here
[INFO] [stdout]     |             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 355 |     fn peek(&self) -> Option<&Lexeme<'_>> {
[INFO] [stdout]     |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:359:14
[INFO] [stdout]     |
[INFO] [stdout] 359 |     fn peekn(&self, n: usize) -> Option<&Lexeme> {
[INFO] [stdout]     |              ^^^^^                      ^^^^^^^
[INFO] [stdout]     |              |                          ||
[INFO] [stdout]     |              |                          |the same lifetime is hidden here
[INFO] [stdout]     |              |                          the same lifetime is elided here
[INFO] [stdout]     |              the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 359 |     fn peekn(&self, n: usize) -> Option<&Lexeme<'_>> {
[INFO] [stdout]     |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/source_reader.rs:15:36
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(source: &'a str) -> StrReader {
[INFO] [stdout]    |                         --         ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(source: &'a str) -> StrReader<'a> {
[INFO] [stdout]    |                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/ir_builder.rs:175:26
[INFO] [stdout]     |
[INFO] [stdout] 175 |             AstExpr::Str(s) => unimplemented!(),
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Eq`, `NotEq`, `Lt`, `Lte`, `Gt`, and `Gte` are never constructed
[INFO] [stdout]   --> src/ir.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub enum CondResult {
[INFO] [stdout]    |          ---------- variants in this enum
[INFO] [stdout] 21 |     Eq,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 22 |     NotEq,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 23 |     Lt,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 24 |     Lte,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 25 |     Gt,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 26 |     Gte,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CondResult` has a derived impl for the trait `Debug`, but this is 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: multiple variants are never constructed
[INFO] [stdout]    --> src/ir.rs:37:5
[INFO] [stdout]     |
[INFO] [stdout]  30 | pub enum Operation {
[INFO] [stdout]     |          --------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout]  37 |     PushI(i32),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  61 |     AddI {
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  66 |     SubI {
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  71 |     MulI {
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  76 |     DivI {
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  82 |     Load {
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  86 |     LoadAI {
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  91 |     LoadAO {
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     Store {
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     StoreAI {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     StoreAO {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 |     Ci2i {
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 |     Jump(Reg),
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 129 |
[INFO] [stdout] 130 |     Tbl {
[INFO] [stdout]     |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 160 |     CmpNotEq {
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 172 |     Comp {
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operation` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lexer.rs:319:52
[INFO] [stdout]     |
[INFO] [stdout] 319 |     fn lex_this(input: &'static str) -> Result<Vec<Lexeme>, Error> {
[INFO] [stdout]     |                         -------                    ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'static`
[INFO] [stdout]     |
[INFO] [stdout] 319 |     fn lex_this(input: &'static str) -> Result<Vec<Lexeme<'static>>, Error> {
[INFO] [stdout]     |                                                          +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:355:13
[INFO] [stdout]     |
[INFO] [stdout] 355 |     fn peek(&self) -> Option<&Lexeme> {
[INFO] [stdout]     |             ^^^^^            ^^^^^^^
[INFO] [stdout]     |             |                ||
[INFO] [stdout]     |             |                |the same lifetime is hidden here
[INFO] [stdout]     |             |                the same lifetime is elided here
[INFO] [stdout]     |             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 355 |     fn peek(&self) -> Option<&Lexeme<'_>> {
[INFO] [stdout]     |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:359:14
[INFO] [stdout]     |
[INFO] [stdout] 359 |     fn peekn(&self, n: usize) -> Option<&Lexeme> {
[INFO] [stdout]     |              ^^^^^                      ^^^^^^^
[INFO] [stdout]     |              |                          ||
[INFO] [stdout]     |              |                          |the same lifetime is hidden here
[INFO] [stdout]     |              |                          the same lifetime is elided here
[INFO] [stdout]     |              the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 359 |     fn peekn(&self, n: usize) -> Option<&Lexeme<'_>> {
[INFO] [stdout]     |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/source_reader.rs:15:36
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(source: &'a str) -> StrReader {
[INFO] [stdout]    |                         --         ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(source: &'a str) -> StrReader<'a> {
[INFO] [stdout]    |                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.33s
[INFO] running `Command { std: "docker" "inspect" "aaf3ca0d9a5ca8cd6a173b08f1eb101b603929a2b83c3b0100340188010c67a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaf3ca0d9a5ca8cd6a173b08f1eb101b603929a2b83c3b0100340188010c67a8", kill_on_drop: false }`
[INFO] [stdout] aaf3ca0d9a5ca8cd6a173b08f1eb101b603929a2b83c3b0100340188010c67a8
