[INFO] cloning repository https://github.com/5CYTH3/rs_toy_compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/5CYTH3/rs_toy_compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F5CYTH3%2Frs_toy_compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F5CYTH3%2Frs_toy_compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04d884f727ae09c8b53d3d68c0a922c99a923f8a
[INFO] checking 5CYTH3/rs_toy_compiler against try#5fee451ebd94296ea05214e819c311e164b30af6 for pr-139042
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F5CYTH3%2Frs_toy_compiler" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/5CYTH3/rs_toy_compiler on toolchain 5fee451ebd94296ea05214e819c311e164b30af6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5fee451ebd94296ea05214e819c311e164b30af6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/5CYTH3/rs_toy_compiler
[INFO] finished tweaking git repo https://github.com/5CYTH3/rs_toy_compiler
[INFO] tweaked toml for git repo https://github.com/5CYTH3/rs_toy_compiler written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/5CYTH3/rs_toy_compiler 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" "+5fee451ebd94296ea05214e819c311e164b30af6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+5fee451ebd94296ea05214e819c311e164b30af6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20b2fb9c9c961d6716d369be0e512590a82c4c71bd68fe80cfc4eda8777bb72c
[INFO] running `Command { std: "docker" "start" "-a" "20b2fb9c9c961d6716d369be0e512590a82c4c71bd68fe80cfc4eda8777bb72c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20b2fb9c9c961d6716d369be0e512590a82c4c71bd68fe80cfc4eda8777bb72c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20b2fb9c9c961d6716d369be0e512590a82c4c71bd68fe80cfc4eda8777bb72c", kill_on_drop: false }`
[INFO] [stdout] 20b2fb9c9c961d6716d369be0e512590a82c4c71bd68fe80cfc4eda8777bb72c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+5fee451ebd94296ea05214e819c311e164b30af6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84e746a7c03acc7f1b093101b11376b35f7ce4a5b52b8e46e9e9d81f111ff69d
[INFO] running `Command { std: "docker" "start" "-a" "84e746a7c03acc7f1b093101b11376b35f7ce4a5b52b8e46e9e9d81f111ff69d", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking regex v1.7.0
[INFO] [stderr]     Checking parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `fs::File` and `io::Write`
[INFO] [stdout]  --> src/compiler/mod.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{fs::File, io::Write};
[INFO] [stdout]   |           ^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Expr`, `StatementList`, `Statement`, and `token::TokenType`
[INFO] [stdout]  --> src/compiler/mod.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 |     ast::{Expr, Statement, StatementList},
[INFO] [stdout]   |           ^^^^  ^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 7 |     token::TokenType,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]  --> src/errors/mod.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{error::Error, fmt};
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `compiler::*`
[INFO] [stdout]   --> src/main.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | use compiler::*;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fs::File` and `io::Write`
[INFO] [stdout]  --> src/compiler/mod.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{fs::File, io::Write};
[INFO] [stdout]   |           ^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Expr`, `StatementList`, `Statement`, and `token::TokenType`
[INFO] [stdout]  --> src/compiler/mod.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 |     ast::{Expr, Statement, StatementList},
[INFO] [stdout]   |           ^^^^  ^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 7 |     token::TokenType,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]  --> src/errors/mod.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{error::Error, fmt};
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `compiler::*`
[INFO] [stdout]   --> src/main.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | use compiler::*;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `regexp`
[INFO] [stdout]   --> src/parse/lexer.rs:26:31
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn match_token(&mut self, regexp: (&str, TokenType), ctx: &str) {}
[INFO] [stdout]    |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_regexp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/parse/lexer.rs:26:58
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn match_token(&mut self, regexp: (&str, TokenType), ctx: &str) {}
[INFO] [stdout]    |                                                          ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `regexp`
[INFO] [stdout]   --> src/parse/lexer.rs:26:31
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn match_token(&mut self, regexp: (&str, TokenType), ctx: &str) {}
[INFO] [stdout]    |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_regexp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/parse/lexer.rs:26:58
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn match_token(&mut self, regexp: (&str, TokenType), ctx: &str) {}
[INFO] [stdout]    |                                                          ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `SyntaxError` is never constructed
[INFO] [stdout]  --> src/errors/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum KarmError {
[INFO] [stdout]   |          --------- variant in this enum
[INFO] [stdout] 7 |     SyntaxError(TokenType, TokenType)
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `KarmError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_literal` is never used
[INFO] [stdout]    --> src/parse/mod.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout] 24  | impl Parser {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 163 |     fn is_literal(&self, token: Token) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `match_token` is never used
[INFO] [stdout]   --> src/parse/lexer.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Lexer {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn match_token(&mut self, regexp: (&str, TokenType), ctx: &str) {}
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/parse/token.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum TokenType {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 30 |     Natural,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     Min,        // -
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 36 |     Mul,        // *
[INFO] [stdout] 37 |     Div,        // /
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 38 |     Less,       // <
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 39 |     Greater,    // >
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 40 |     EqLess,     // <=
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 41 |     EqGreater,  // >=
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 42 |     Percent,    // %
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     Def,        // def
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenType` 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: method `guard_precedence` is never used
[INFO] [stdout]   --> src/parse/token.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl TokenType {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 54 |     pub fn guard_precedence(&self) -> Option<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `SyntaxError` is never constructed
[INFO] [stdout]  --> src/errors/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum KarmError {
[INFO] [stdout]   |          --------- variant in this enum
[INFO] [stdout] 7 |     SyntaxError(TokenType, TokenType)
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `KarmError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_literal` is never used
[INFO] [stdout]    --> src/parse/mod.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout] 24  | impl Parser {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 163 |     fn is_literal(&self, token: Token) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `match_token` is never used
[INFO] [stdout]   --> src/parse/lexer.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Lexer {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn match_token(&mut self, regexp: (&str, TokenType), ctx: &str) {}
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/parse/token.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum TokenType {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 30 |     Natural,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     Min,        // -
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 36 |     Mul,        // *
[INFO] [stdout] 37 |     Div,        // /
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 38 |     Less,       // <
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 39 |     Greater,    // >
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 40 |     EqLess,     // <=
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 41 |     EqGreater,  // >=
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 42 |     Percent,    // %
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     Def,        // def
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenType` 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: method `guard_precedence` is never used
[INFO] [stdout]   --> src/parse/token.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl TokenType {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 54 |     pub fn guard_precedence(&self) -> Option<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.37s
[INFO] running `Command { std: "docker" "inspect" "84e746a7c03acc7f1b093101b11376b35f7ce4a5b52b8e46e9e9d81f111ff69d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84e746a7c03acc7f1b093101b11376b35f7ce4a5b52b8e46e9e9d81f111ff69d", kill_on_drop: false }`
[INFO] [stdout] 84e746a7c03acc7f1b093101b11376b35f7ce4a5b52b8e46e9e9d81f111ff69d
