[INFO] cloning repository https://github.com/KermitPurple/parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KermitPurple/parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKermitPurple%2Fparser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKermitPurple%2Fparser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4b4b7ccd30ae86aeca551332f6bd2207ff513a59
[INFO] checking KermitPurple/parser against try#1bd50d4315eb15970d395b6be5823f9384707693 for pr-140151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKermitPurple%2Fparser" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KermitPurple/parser on toolchain 1bd50d4315eb15970d395b6be5823f9384707693
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1bd50d4315eb15970d395b6be5823f9384707693" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KermitPurple/parser
[INFO] finished tweaking git repo https://github.com/KermitPurple/parser
[INFO] tweaked toml for git repo https://github.com/KermitPurple/parser written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/KermitPurple/parser 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" "+1bd50d4315eb15970d395b6be5823f9384707693" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1bd50d4315eb15970d395b6be5823f9384707693" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 926d85d57cfc54bfd76eedec4f0f695e945a48a772b905e9d3c48f7b3b3c88a8
[INFO] running `Command { std: "docker" "start" "-a" "926d85d57cfc54bfd76eedec4f0f695e945a48a772b905e9d3c48f7b3b3c88a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "926d85d57cfc54bfd76eedec4f0f695e945a48a772b905e9d3c48f7b3b3c88a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "926d85d57cfc54bfd76eedec4f0f695e945a48a772b905e9d3c48f7b3b3c88a8", kill_on_drop: false }`
[INFO] [stdout] 926d85d57cfc54bfd76eedec4f0f695e945a48a772b905e9d3c48f7b3b3c88a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1bd50d4315eb15970d395b6be5823f9384707693" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e142829f833ab90f8d4899b623ada1e6788bf339bda3453fbb046da5a1571528
[INFO] running `Command { std: "docker" "start" "-a" "e142829f833ab90f8d4899b623ada1e6788bf339bda3453fbb046da5a1571528", kill_on_drop: false }`
[INFO] [stderr]     Checking parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `OpType`
[INFO] [stdout]  --> src/lexer/mod.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use token::{OpType, Token, TokenError};
[INFO] [stdout]   |             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OpType`
[INFO] [stdout]  --> src/lexer/mod.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use token::{OpType, Token, TokenError};
[INFO] [stdout]   |             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse` is never used
[INFO] [stdout]  --> src/lexer/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn parse(string: &str) -> Result<Vec<Token>, TokenError> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Num`, `Op`, `LParen`, and `RParen` are never constructed
[INFO] [stdout]  --> src/lexer/token.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Token {
[INFO] [stdout]   |          ----- variants in this enum
[INFO] [stdout] 3 |     Num(i64),
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 4 |     Op(OpType),
[INFO] [stdout]   |     ^^
[INFO] [stdout] 5 |     LParen,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 6 |     RParen,
[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: associated function `parse` is never used
[INFO] [stdout]   --> src/lexer/token.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Token {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 10 |     pub fn parse(string: &str) -> Result<Self, TokenError> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Add`, `Sub`, `Mul`, `Div`, and `Rem` are never constructed
[INFO] [stdout]   --> src/lexer/token.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub enum OpType {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] 26 |     Add,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 27 |     Sub,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 28 |     Mul,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 29 |     Div,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 30 |     Rem,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OpType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `parse` and `is_op` are never used
[INFO] [stdout]   --> src/lexer/token.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl OpType {
[INFO] [stdout]    | ----------- associated functions in this implementation
[INFO] [stdout] 34 |     pub fn parse(string: &str) -> Result<Self, TokenError> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn is_op(string: &str) -> bool {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TokenError` is never constructed
[INFO] [stdout]   --> src/lexer/token.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub struct TokenError;
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Int`, `Add`, `Sub`, `Mul`, `Div`, and `Rem` are never constructed
[INFO] [stdout]  --> src/parser/tree.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Tree {
[INFO] [stdout]   |          ---- variants in this enum
[INFO] [stdout] 2 |     Int(i64),
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 3 |     Add(Box<Tree>, Box<Tree>),
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 4 |     Sub(Box<Tree>, Box<Tree>),
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 5 |     Mul(Box<Tree>, Box<Tree>),
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 6 |     Div(Box<Tree>, Box<Tree>),
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 7 |     Rem(Box<Tree>, Box<Tree>),
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `eval` is never used
[INFO] [stdout]   --> src/parser/tree.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Tree {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 11 |     fn eval(&self) -> i64 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Sub`, `Div`, and `Rem` are never constructed
[INFO] [stdout]  --> src/parser/tree.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Tree {
[INFO] [stdout]   |          ---- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 4 |     Sub(Box<Tree>, Box<Tree>),
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 5 |     Mul(Box<Tree>, Box<Tree>),
[INFO] [stdout] 6 |     Div(Box<Tree>, Box<Tree>),
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 7 |     Rem(Box<Tree>, Box<Tree>),
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "e142829f833ab90f8d4899b623ada1e6788bf339bda3453fbb046da5a1571528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e142829f833ab90f8d4899b623ada1e6788bf339bda3453fbb046da5a1571528", kill_on_drop: false }`
[INFO] [stdout] e142829f833ab90f8d4899b623ada1e6788bf339bda3453fbb046da5a1571528