[INFO] cloning repository https://github.com/Tsugami/math-parser-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tsugami/math-parser-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTsugami%2Fmath-parser-in-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTsugami%2Fmath-parser-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8101c9fe1e85bcdeb7037d89c0a7935eb18703d0
[INFO] checking Tsugami/math-parser-in-rust against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTsugami%2Fmath-parser-in-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Tsugami/math-parser-in-rust
[INFO] finished tweaking git repo https://github.com/Tsugami/math-parser-in-rust
[INFO] tweaked toml for git repo https://github.com/Tsugami/math-parser-in-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Tsugami/math-parser-in-rust on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Tsugami/math-parser-in-rust 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" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] b9991cbb1d03133b9e260b71463ee8b376f221746ce9ea6a527559d2da9e4459
[INFO] running `Command { std: "docker" "start" "b9991cbb1d03133b9e260b71463ee8b376f221746ce9ea6a527559d2da9e4459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9991cbb1d03133b9e260b71463ee8b376f221746ce9ea6a527559d2da9e4459", 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" "b9991cbb1d03133b9e260b71463ee8b376f221746ce9ea6a527559d2da9e4459" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9991cbb1d03133b9e260b71463ee8b376f221746ce9ea6a527559d2da9e4459", 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" "b9991cbb1d03133b9e260b71463ee8b376f221746ce9ea6a527559d2da9e4459" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking math-parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Lexer` is never constructed
[INFO] [stdout]  --> src/lexer.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Lexer {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_str`, `new`, `next_char`, `peek`, `next`, and `extract_tokens` are never used
[INFO] [stdout]   --> src/lexer.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Lexer {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn from_str(input: &str) -> Result<Vec<Token>, String> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn new(input: &str) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn next_char(&mut self) -> Option<char> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn peek(&mut self) -> Option<char> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn next(&mut self) -> Option<Token> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80 |     fn extract_tokens(&mut self) -> Result<Vec<Token>, String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Operator` is never used
[INFO] [stdout]  --> src/parser.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum Operator {
[INFO] [stdout]   |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Node` is never used
[INFO] [stdout]   --> src/parser.rs:41:6
[INFO] [stdout]    |
[INFO] [stdout] 41 | enum Node {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MathParser` is never constructed
[INFO] [stdout]   --> src/parser.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub struct MathParser {}
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `parse`, `token_priority`, `ast_to_source_with_params`, `build_ast`, and `eval` are never used
[INFO] [stdout]    --> src/parser.rs:53:12
[INFO] [stdout]     |
[INFO] [stdout]  52 | impl MathParser {
[INFO] [stdout]     | --------------- associated functions in this implementation
[INFO] [stdout]  53 |     pub fn parse(input: &str) -> Result<i64, String> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  60 |     fn token_priority(token: &Token) -> i64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  70 |     fn ast_to_source_with_params(ast: &Node) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  81 |     fn build_ast(tokens: Vec<Token>, priority: Option<i64>) -> Result<Node, String> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 130 |     fn eval(node: &Node) -> usize {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Token` is never used
[INFO] [stdout]  --> src/token.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Token {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Vec<Token>`
[INFO] [stdout]    --> src/parser.rs:106:51
[INFO] [stdout]     |
[INFO] [stdout] 106 |                         let rhs = Self::build_ast(rhs.into(), Some(priority))?;
[INFO] [stdout]     |                                                   ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 106 -                         let rhs = Self::build_ast(rhs.into(), Some(priority))?;
[INFO] [stdout] 106 +                         let rhs = Self::build_ast(rhs, Some(priority))?;
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 106 -                         let rhs = Self::build_ast(rhs.into(), Some(priority))?;
[INFO] [stdout] 106 +                         let rhs = Self::build_ast(<Vec<Token> as Into<_>>::into(rhs), Some(priority))?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `math-parser` (bin "math-parser") due to 1 previous error; 7 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: associated function `ast_to_source_with_params` is never used
[INFO] [stdout]   --> src/parser.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | impl MathParser {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 70 |     fn ast_to_source_with_params(ast: &Node) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Vec<Token>`
[INFO] [stdout]    --> src/parser.rs:106:51
[INFO] [stdout]     |
[INFO] [stdout] 106 |                         let rhs = Self::build_ast(rhs.into(), Some(priority))?;
[INFO] [stdout]     |                                                   ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 106 -                         let rhs = Self::build_ast(rhs.into(), Some(priority))?;
[INFO] [stdout] 106 +                         let rhs = Self::build_ast(rhs, Some(priority))?;
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 106 -                         let rhs = Self::build_ast(rhs.into(), Some(priority))?;
[INFO] [stdout] 106 +                         let rhs = Self::build_ast(<Vec<Token> as Into<_>>::into(rhs), Some(priority))?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `math-parser` (bin "math-parser" test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "b9991cbb1d03133b9e260b71463ee8b376f221746ce9ea6a527559d2da9e4459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9991cbb1d03133b9e260b71463ee8b376f221746ce9ea6a527559d2da9e4459", kill_on_drop: false }`
[INFO] [stdout] b9991cbb1d03133b9e260b71463ee8b376f221746ce9ea6a527559d2da9e4459
