[INFO] cloning repository https://github.com/shhr1214/monkey-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shhr1214/monkey-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshhr1214%2Fmonkey-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshhr1214%2Fmonkey-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6e7417e7d882167ace1bab1acca2b301b70e27a9
[INFO] testing shhr1214/monkey-rust against 1.75.0 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshhr1214%2Fmonkey-rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shhr1214/monkey-rust on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shhr1214/monkey-rust
[INFO] finished tweaking git repo https://github.com/shhr1214/monkey-rust
[INFO] tweaked toml for git repo https://github.com/shhr1214/monkey-rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/shhr1214/monkey-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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e003e375bf8a22eff55b9bd0d01d65e52d50a8a586a98256c86c8dab76d7014
[INFO] running `Command { std: "docker" "start" "-a" "7e003e375bf8a22eff55b9bd0d01d65e52d50a8a586a98256c86c8dab76d7014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e003e375bf8a22eff55b9bd0d01d65e52d50a8a586a98256c86c8dab76d7014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e003e375bf8a22eff55b9bd0d01d65e52d50a8a586a98256c86c8dab76d7014", kill_on_drop: false }`
[INFO] [stdout] 7e003e375bf8a22eff55b9bd0d01d65e52d50a8a586a98256c86c8dab76d7014
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47896b7e55faf88389e52c51aba489f11f3b64ef50acb1ef70d6f7e0b35ee4e5
[INFO] running `Command { std: "docker" "start" "-a" "47896b7e55faf88389e52c51aba489f11f3b64ef50acb1ef70d6f7e0b35ee4e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling monkey-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `token::Token`
[INFO] [stdout]  --> src/ast.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use token::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Node`, `Statement`
[INFO] [stdout]  --> src/parser.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ast::{Node, Program, Statement};
[INFO] [stdout]   |           ^^^^           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `token`
[INFO] [stdout]  --> src/parser.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use token;
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Result`
[INFO] [stdout]  --> src/repl.rs:1:41
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{BufRead, BufReader, Read, Result, Write};
[INFO] [stdout]   |                                         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `LetStatement` and `ExpressionStatement` are never constructed
[INFO] [stdout]   --> src/ast.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub enum Statement {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] 9  |     LetStatement(Identifier, Expression),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 10 |     ExpressionStatement(Expression),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `statements` are never used
[INFO] [stdout]   --> src/ast.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl Program {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 29 |     pub fn new() -> Program {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn statements(self) -> Vec<Statement> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]  --> src/parser.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Parser {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `next_token`, and `parse_program` are never used
[INFO] [stdout]   --> src/parser.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Parser {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 13 |     pub fn new(mut lexer: Lexer) -> Parser {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn next_token(mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn parse_program(&self) -> Program {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `literal` is never used
[INFO] [stdout]   --> src/token.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | impl Token {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn literal(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/repl.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     output.write(PROMPT.as_bytes());
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let _ = output.write(PROMPT.as_bytes());
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/repl.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     output.flush();
[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] 11 |     let _ = output.flush();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/repl.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |             output.write(token.display().as_bytes());
[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] 20 |             let _ = output.write(token.display().as_bytes());
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/repl.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |             output.write("\n".as_bytes());
[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] 21 |             let _ = output.write("\n".as_bytes());
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/repl.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |             output.flush();
[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] 22 |             let _ = output.flush();
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/repl.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         output.write(PROMPT.as_bytes());
[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] 24 |         let _ = output.write(PROMPT.as_bytes());
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/repl.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         output.flush();
[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] 25 |         let _ = output.flush();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "47896b7e55faf88389e52c51aba489f11f3b64ef50acb1ef70d6f7e0b35ee4e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47896b7e55faf88389e52c51aba489f11f3b64ef50acb1ef70d6f7e0b35ee4e5", kill_on_drop: false }`
[INFO] [stdout] 47896b7e55faf88389e52c51aba489f11f3b64ef50acb1ef70d6f7e0b35ee4e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ceae32ea46d2591f9cb40033c36244ecceaa4cd2756367ced0e56ef6ecff4f32
[INFO] running `Command { std: "docker" "start" "-a" "ceae32ea46d2591f9cb40033c36244ecceaa4cd2756367ced0e56ef6ecff4f32", kill_on_drop: false }`
[INFO] [stderr]    Compiling monkey-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `token::Token`
[INFO] [stdout]  --> src/ast.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use token::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Result`
[INFO] [stdout]  --> src/repl.rs:1:41
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{BufRead, BufReader, Read, Result, Write};
[INFO] [stdout]   |                                         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/parser.rs:65:40
[INFO] [stdout]    |
[INFO] [stdout] 65 |             Statement::LetStatement(i, e) => {
[INFO] [stdout]    |                                        ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `LetStatement` and `ExpressionStatement` are never constructed
[INFO] [stdout]   --> src/ast.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub enum Statement {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] 9  |     LetStatement(Identifier, Expression),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 10 |     ExpressionStatement(Expression),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `lexer`, `cur_token`, and `peek_token` are never read
[INFO] [stdout]  --> src/parser.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Parser {
[INFO] [stdout]   |        ------ fields in this struct
[INFO] [stdout] 7 |     lexer: Lexer,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 8 |     cur_token: Token,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 9 |     peek_token: Token,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next_token` is never used
[INFO] [stdout]   --> src/parser.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Parser {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn next_token(mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/repl.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     output.write(PROMPT.as_bytes());
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let _ = output.write(PROMPT.as_bytes());
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/repl.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     output.flush();
[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] 11 |     let _ = output.flush();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/repl.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |             output.write(token.display().as_bytes());
[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] 20 |             let _ = output.write(token.display().as_bytes());
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/repl.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |             output.write("\n".as_bytes());
[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] 21 |             let _ = output.write("\n".as_bytes());
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/repl.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |             output.flush();
[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] 22 |             let _ = output.flush();
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/repl.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         output.write(PROMPT.as_bytes());
[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] 24 |         let _ = output.write(PROMPT.as_bytes());
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/repl.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         output.flush();
[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] 25 |         let _ = output.flush();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "ceae32ea46d2591f9cb40033c36244ecceaa4cd2756367ced0e56ef6ecff4f32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ceae32ea46d2591f9cb40033c36244ecceaa4cd2756367ced0e56ef6ecff4f32", kill_on_drop: false }`
[INFO] [stdout] ceae32ea46d2591f9cb40033c36244ecceaa4cd2756367ced0e56ef6ecff4f32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3568b8422059be024aa062a5011147a324340fe71ea26000195b2c0c222c8e9a
[INFO] running `Command { std: "docker" "start" "-a" "3568b8422059be024aa062a5011147a324340fe71ea26000195b2c0c222c8e9a", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `token::Token`
[INFO] [stderr]  --> src/ast.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use token::Token;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Result`
[INFO] [stderr]  --> src/repl.rs:1:41
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{BufRead, BufReader, Read, Result, Write};
[INFO] [stderr]   |                                         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/parser.rs:65:40
[INFO] [stderr]    |
[INFO] [stderr] 65 |             Statement::LetStatement(i, e) => {
[INFO] [stderr]    |                                        ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variants `LetStatement` and `ExpressionStatement` are never constructed
[INFO] [stderr]   --> src/ast.rs:9:5
[INFO] [stderr]    |
[INFO] [stderr] 8  | pub enum Statement {
[INFO] [stderr]    |          --------- variants in this enum
[INFO] [stderr] 9  |     LetStatement(Identifier, Expression),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 10 |     ExpressionStatement(Expression),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `lexer`, `cur_token`, and `peek_token` are never read
[INFO] [stderr]  --> src/parser.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct Parser {
[INFO] [stderr]   |        ------ fields in this struct
[INFO] [stderr] 7 |     lexer: Lexer,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 8 |     cur_token: Token,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 9 |     peek_token: Token,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `next_token` is never used
[INFO] [stderr]   --> src/parser.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl Parser {
[INFO] [stderr]    | ----------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 23 |     fn next_token(mut self) {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/repl.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     output.write(PROMPT.as_bytes());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let _ = output.write(PROMPT.as_bytes());
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/repl.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     output.flush();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let _ = output.flush();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/repl.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |             output.write(token.display().as_bytes());
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 20 |             let _ = output.write(token.display().as_bytes());
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/repl.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |             output.write("\n".as_bytes());
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 21 |             let _ = output.write("\n".as_bytes());
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/repl.rs:22:13
[INFO] [stderr]    |
[INFO] [stderr] 22 |             output.flush();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 22 |             let _ = output.flush();
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/repl.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |         output.write(PROMPT.as_bytes());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let _ = output.write(PROMPT.as_bytes());
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/repl.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |         output.flush();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let _ = output.flush();
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `monkey-rust` (bin "monkey-rust" test) generated 13 warnings (run `cargo fix --bin "monkey-rust" --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/monkey_rust-767cf32b6750e6c4)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test lexer::tests::test_next_token ... ok
[INFO] [stdout] test parser::tests::test_let_statements ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- parser::tests::test_let_statements stdout ----
[INFO] [stdout] thread 'parser::tests::test_let_statements' panicked at src/parser.rs:49:9:
[INFO] [stdout] assertion `left == right` failed: num of program statements must be 3
[INFO] [stdout]   left: 0
[INFO] [stdout]  right: 3
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x56494fbb77ac - std::backtrace_rs::backtrace::libunwind::trace::ha637c64ce894333a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x56494fbb77ac - std::backtrace_rs::backtrace::trace_unsynchronized::h47f62dea28e0c88d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x56494fbb77ac - std::sys_common::backtrace::_print_fmt::h9eef0abe20ede486
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x56494fbb77ac - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hed7f999df88cc644
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x56494fbe12f0 - core::fmt::rt::Argument::fmt::h1539a9308b8d058d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x56494fbe12f0 - core::fmt::write::h3a39390d8560d9c9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x56494fbb515f - std::io::Write::write_fmt::h040b369f3a0f9cbc
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/io/mod.rs:1762:15
[INFO] [stdout]    7:     0x56494fbb7594 - std::sys_common::backtrace::_print::h894006fb5c6f3d45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x56494fbb7594 - std::sys_common::backtrace::print::h23a2d212c6fff936
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x56494fbb9257 - std::panicking::default_hook::{{closure}}::h8a1d2ee00185001a
[INFO] [stdout]   10:     0x56494fbb8f43 - std::panicking::default_hook::h6038f2eba384e475
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x56494fb89957 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h0ad024c9bdc6d768
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
[INFO] [stdout]   12:     0x56494fb89957 - test::test_main::{{closure}}::h7500b54257359db6
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x56494fbb9868 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h1f8f335eaa9cfaee
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
[INFO] [stdout]   14:     0x56494fbb9868 - std::panicking::rust_panic_with_hook::h2b5517d590cab22e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x56494fbb95be - std::panicking::begin_panic_handler::{{closure}}::h233112c06e0ef43e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:657:13
[INFO] [stdout]   16:     0x56494fbb7c76 - std::sys_common::backtrace::__rust_end_short_backtrace::h6e893f24d7ebbff8
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:170:18
[INFO] [stdout]   17:     0x56494fbb9322 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x56494fb4acf5 - core::panicking::panic_fmt::hbf0e066aabfa482c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x56494fb4b1f1 - core::panicking::assert_failed_inner::h0bba8b7c26ee4492
[INFO] [stdout]   20:     0x56494fb4cc5e - core::panicking::assert_failed::h626ef367922042b9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:279:5
[INFO] [stdout]   21:     0x56494fb528e6 - monkey_rust::parser::tests::test_let_statements::hac4cb0616e4b8c70
[INFO] [stdout]                                at /opt/rustwide/workdir/src/parser.rs:49:9
[INFO] [stdout]   22:     0x56494fb526e7 - monkey_rust::parser::tests::test_let_statements::{{closure}}::hd8279b5e10b531ee
[INFO] [stdout]                                at /opt/rustwide/workdir/src/parser.rs:38:29
[INFO] [stdout]   23:     0x56494fb53a86 - core::ops::function::FnOnce::call_once::ha692af077807b46b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x56494fb8efaf - core::ops::function::FnOnce::call_once::h2b5d431d5046312d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x56494fb8efaf - test::__rust_begin_short_backtrace::h7714669af176e207
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:628:18
[INFO] [stdout]   26:     0x56494fb8dfc5 - test::run_test_in_process::{{closure}}::h85218797dcbcec12
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:60
[INFO] [stdout]   27:     0x56494fb8dfc5 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h76c106ea31c14d7b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x56494fb8dfc5 - std::panicking::try::do_call::h3bd5d0f6620ee946
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   29:     0x56494fb8dfc5 - std::panicking::try::h232e535e4744fe31
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   30:     0x56494fb8dfc5 - std::panic::catch_unwind::h3ce3bd6ca8dbac68
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   31:     0x56494fb8dfc5 - test::run_test_in_process::hc97b257c9621286a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:27
[INFO] [stdout]   32:     0x56494fb8dfc5 - test::run_test::{{closure}}::h2aa798823a438d38
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:574:43
[INFO] [stdout]   33:     0x56494fb56286 - test::run_test::{{closure}}::h87d231c78fb59832
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:602:41
[INFO] [stdout]   34:     0x56494fb56286 - std::sys_common::backtrace::__rust_begin_short_backtrace::he6df152596625789
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:154:18
[INFO] [stdout]   35:     0x56494fb5b337 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha94be15d1e0acf36
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   36:     0x56494fb5b337 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9dc6bd6372f16606
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x56494fb5b337 - std::panicking::try::do_call::h9057517f80303cd4
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   38:     0x56494fb5b337 - std::panicking::try::he3a30b11ee45340c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   39:     0x56494fb5b337 - std::panic::catch_unwind::h410458cfd3528b8b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   40:     0x56494fb5b337 - std::thread::Builder::spawn_unchecked_::{{closure}}::h72ac3bdb567b737b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   41:     0x56494fb5b337 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h38f34da3654a8344
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x56494fbbe2f5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc7eafaff61e32df9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]   43:     0x56494fbbe2f5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6ba4a5de48dd2304
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]   44:     0x56494fbbe2f5 - std::sys::unix::thread::Thread::new::thread_start::he469335aef763e45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   45:     0x7fa1d5c56ac3 - <unknown>
[INFO] [stdout]   46:     0x7fa1d5ce7bf4 - __clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     parser::tests::test_let_statements
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin monkey-rust`
[INFO] running `Command { std: "docker" "inspect" "3568b8422059be024aa062a5011147a324340fe71ea26000195b2c0c222c8e9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3568b8422059be024aa062a5011147a324340fe71ea26000195b2c0c222c8e9a", kill_on_drop: false }`
[INFO] [stdout] 3568b8422059be024aa062a5011147a324340fe71ea26000195b2c0c222c8e9a
