[INFO] cloning repository https://github.com/nobel-sh/lamba-calculus-intepreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nobel-sh/lamba-calculus-intepreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnobel-sh%2Flamba-calculus-intepreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnobel-sh%2Flamba-calculus-intepreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a76b203788284c5cce1276b9d43d4783e2cfb56c
[INFO] checking nobel-sh/lamba-calculus-intepreter against try#54e27f559f23913c1d5afb1a0f0114e9e61b81b8 for pr-147589
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnobel-sh%2Flamba-calculus-intepreter" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nobel-sh/lamba-calculus-intepreter
[INFO] finished tweaking git repo https://github.com/nobel-sh/lamba-calculus-intepreter
[INFO] tweaked toml for git repo https://github.com/nobel-sh/lamba-calculus-intepreter written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nobel-sh/lamba-calculus-intepreter on toolchain 54e27f559f23913c1d5afb1a0f0114e9e61b81b8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nobel-sh/lamba-calculus-intepreter 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" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b52cfd0b85ab839b9b89eaf7bb882e2fcd518744531fcfb55bedd618a6e83eb
[INFO] running `Command { std: "docker" "start" "-a" "4b52cfd0b85ab839b9b89eaf7bb882e2fcd518744531fcfb55bedd618a6e83eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b52cfd0b85ab839b9b89eaf7bb882e2fcd518744531fcfb55bedd618a6e83eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b52cfd0b85ab839b9b89eaf7bb882e2fcd518744531fcfb55bedd618a6e83eb", kill_on_drop: false }`
[INFO] [stdout] 4b52cfd0b85ab839b9b89eaf7bb882e2fcd518744531fcfb55bedd618a6e83eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37f32e6515351963193c962773c1f5c46a081411429793d5d683d9bdfce4e8ab
[INFO] running `Command { std: "docker" "start" "-a" "37f32e6515351963193c962773c1f5c46a081411429793d5d683d9bdfce4e8ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]     Checking thiserror v1.0.63
[INFO] [stderr]     Checking lambda_calculus_interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `InterpreterError` and `InterpreterResult`
[INFO] [stdout]  --> src/environment.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::error::{InterpreterError, InterpreterResult};
[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 imports: `InterpreterError` and `InterpreterResult`
[INFO] [stdout]  --> src/environment.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::error::{InterpreterError, InterpreterResult};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Environment` is never constructed
[INFO] [stdout]  --> src/environment.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Environment {
[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 `new`, `extend`, `get`, and `set` are never used
[INFO] [stdout]   --> src/environment.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Environment {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 12 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn extend(&self) -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn get(&self, name: &str) -> Option<Term> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn set(&mut self, name: String, value: Term) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `InterpreterError` is never used
[INFO] [stdout]  --> src/error.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum InterpreterError {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `InterpreterResult` is never used
[INFO] [stdout]   --> src/error.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub type InterpreterResult<T> = Result<T, InterpreterError>;
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `evaluate` is never used
[INFO] [stdout]  --> src/evaluator.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn evaluate(term: &Term, env: &mut Environment) -> InterpreterResult<Term> {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `substitute` is never used
[INFO] [stdout]   --> src/evaluator.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn substitute(term: &Term, env: &Environment) -> Term {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse` is never used
[INFO] [stdout]   --> src/parser.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn parse(input: &str) -> InterpreterResult<Term> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_term` is never used
[INFO] [stdout]   --> src/parser.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn parse_term(tokens: &[TokenKind]) -> Result<(Term, &[TokenKind]), InterpreterError> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_abstraction` is never used
[INFO] [stdout]   --> src/parser.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn parse_abstraction(tokens: &[TokenKind]) -> Result<(Term, &[TokenKind]), InterpreterError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_application` is never used
[INFO] [stdout]   --> src/parser.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn parse_application(tokens: &[TokenKind]) -> Result<(Term, &[TokenKind]), InterpreterError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Term` is never used
[INFO] [stdout]  --> src/term.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum Term {
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TokenKind` is never used
[INFO] [stdout]  --> src/tokenizer.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum TokenKind {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tokenize` is never used
[INFO] [stdout]   --> src/tokenizer.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn tokenize(input: &str) -> InterpreterResult<Vec<TokenKind>> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `UnboundVariable` is never constructed
[INFO] [stdout]  --> src/error.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum InterpreterError {
[INFO] [stdout]   |          ---------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 9 |     UnboundVariable(String),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `InterpreterError` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.28s
[INFO] running `Command { std: "docker" "inspect" "37f32e6515351963193c962773c1f5c46a081411429793d5d683d9bdfce4e8ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37f32e6515351963193c962773c1f5c46a081411429793d5d683d9bdfce4e8ab", kill_on_drop: false }`
[INFO] [stdout] 37f32e6515351963193c962773c1f5c46a081411429793d5d683d9bdfce4e8ab
