[INFO] cloning repository https://github.com/Optics-Boss/emojica
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Optics-Boss/emojica" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOptics-Boss%2Femojica", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOptics-Boss%2Femojica'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 285ea6ce3145f7cd1ecfc284431abfea529a67be
[INFO] checking Optics-Boss/emojica against 4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d for pr-159598
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOptics-Boss%2Femojica" "/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/Optics-Boss/emojica
[INFO] finished tweaking git repo https://github.com/Optics-Boss/emojica
[INFO] tweaked toml for git repo https://github.com/Optics-Boss/emojica written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Optics-Boss/emojica on toolchain 4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Optics-Boss/emojica 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" "+4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d" "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-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@sha256:00c5645b54fe3ce5dae1417175e3c7fb6a6646c021d554ecd63a097b8b9f3602" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d374ed026fdc682110663cfa1437cceeac197c9bc44f6377bf90a5d85a2dd708
[INFO] running `Command { std: "docker" "start" "d374ed026fdc682110663cfa1437cceeac197c9bc44f6377bf90a5d85a2dd708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d374ed026fdc682110663cfa1437cceeac197c9bc44f6377bf90a5d85a2dd708", 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" "d374ed026fdc682110663cfa1437cceeac197c9bc44f6377bf90a5d85a2dd708" "/opt/rustwide/cargo-home/bin/cargo" "+4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d374ed026fdc682110663cfa1437cceeac197c9bc44f6377bf90a5d85a2dd708", 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" "d374ed026fdc682110663cfa1437cceeac197c9bc44f6377bf90a5d85a2dd708" "/opt/rustwide/cargo-home/bin/cargo" "+4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking emojica v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `env`
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{env, fs, io };
[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 import: `ExitCode`
[INFO] [stdout]  --> src/main.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::process::{exit, ExitCode};
[INFO] [stdout]   |                          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `stdin`
[INFO] [stdout]  --> src/main.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{stdin, BufRead};
[INFO] [stdout]   |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/interpreter.rs:4:44
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use crate::{environment::environment::{self, Environment}, expr::expr::{self, Expr, LiteralValue}, function::function::Function, ...
[INFO] [stdout]   |                                            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `env`
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{env, fs, io };
[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 import: `ExitCode`
[INFO] [stdout]  --> src/main.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::process::{exit, ExitCode};
[INFO] [stdout]   |                          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `stdin`
[INFO] [stdout]  --> src/main.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{stdin, BufRead};
[INFO] [stdout]   |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/interpreter.rs:4:44
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use crate::{environment::environment::{self, Environment}, expr::expr::{self, Expr, LiteralValue}, function::function::Function, ...
[INFO] [stdout]   |                                            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/parser.rs:434:25
[INFO] [stdout]     |
[INFO] [stdout] 434 |                     let name = self.consume(TokenType::Identifier, "Expect property after '.'.".to_string())?;
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/parser.rs:434:25
[INFO] [stdout]     |
[INFO] [stdout] 434 |                     let name = self.consume(TokenType::Identifier, "Expect property after '.'.".to_string())?;
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Initializer` and `Method` are never constructed
[INFO] [stdout]   --> src/resolver.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout]  8 |     enum FunctionType {
[INFO] [stdout]    |          ------------ variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 11 |         Initializer,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 12 |         Method,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FunctionType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Initializer` and `Method` are never constructed
[INFO] [stdout]   --> src/resolver.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout]  8 |     enum FunctionType {
[INFO] [stdout]    |          ------------ variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 11 |         Initializer,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 12 |         Method,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FunctionType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:64:13
[INFO] [stdout]    |
[INFO] [stdout] 64 |             self.run(line?);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 64 |             let _ = self.run(line?);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/interpreter.rs:276:13
[INFO] [stdout]     |
[INFO] [stdout] 276 | /             self.execute_block(
[INFO] [stdout] 277 | |                 statements,
[INFO] [stdout] 278 | |                 Rc::new(RefCell::new(Environment::from(&self.environment))),
[INFO] [stdout] 279 | |             );
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 276 |             let _ = self.execute_block(
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/resolver.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |             statement.accept(self);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 33 |             let _ = statement.accept(self);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/resolver.rs:43:13
[INFO] [stdout]    |
[INFO] [stdout] 43 |             expression.accept(self);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 43 |             let _ = expression.accept(self);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:64:13
[INFO] [stdout]    |
[INFO] [stdout] 64 |             self.run(line?);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 64 |             let _ = self.run(line?);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/interpreter.rs:276:13
[INFO] [stdout]     |
[INFO] [stdout] 276 | /             self.execute_block(
[INFO] [stdout] 277 | |                 statements,
[INFO] [stdout] 278 | |                 Rc::new(RefCell::new(Environment::from(&self.environment))),
[INFO] [stdout] 279 | |             );
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 276 |             let _ = self.execute_block(
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/resolver.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |             statement.accept(self);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 33 |             let _ = statement.accept(self);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/resolver.rs:43:13
[INFO] [stdout]    |
[INFO] [stdout] 43 |             expression.accept(self);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 43 |             let _ = expression.accept(self);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "d374ed026fdc682110663cfa1437cceeac197c9bc44f6377bf90a5d85a2dd708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d374ed026fdc682110663cfa1437cceeac197c9bc44f6377bf90a5d85a2dd708", kill_on_drop: false }`
[INFO] [stdout] d374ed026fdc682110663cfa1437cceeac197c9bc44f6377bf90a5d85a2dd708
