[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, 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 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 31 | fn peek(&mut self) -> Option { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | fn next(&mut self) -> Option { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 80 | fn extract_tokens(&mut self) -> Result, 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 { [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, priority: Option) -> Result { [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` [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 Into 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( 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` [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 Into 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( 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