[INFO] cloning repository https://github.com/paulhenri/monkey
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/paulhenri/monkey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaulhenri%2Fmonkey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaulhenri%2Fmonkey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2ec7a53e100d8371e30d3bb28cbcf3e02e6621ad
[INFO] testing paulhenri/monkey against beta-2024-12-08 for beta-1.84.0-4-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaulhenri%2Fmonkey" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paulhenri/monkey on toolchain beta-2024-12-08
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-12-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/paulhenri/monkey
[INFO] finished tweaking git repo https://github.com/paulhenri/monkey
[INFO] tweaked toml for git repo https://github.com/paulhenri/monkey written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/paulhenri/monkey 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" "+beta-2024-12-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aedc9258cbcf6cfce5aa5b32dbd7c6cf8dc11ec8f7663c44782d9978890faaf6
[INFO] running `Command { std: "docker" "start" "-a" "aedc9258cbcf6cfce5aa5b32dbd7c6cf8dc11ec8f7663c44782d9978890faaf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aedc9258cbcf6cfce5aa5b32dbd7c6cf8dc11ec8f7663c44782d9978890faaf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aedc9258cbcf6cfce5aa5b32dbd7c6cf8dc11ec8f7663c44782d9978890faaf6", kill_on_drop: false }`
[INFO] [stdout] aedc9258cbcf6cfce5aa5b32dbd7c6cf8dc11ec8f7663c44782d9978890faaf6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e0e3cc7e222975192411afb84d8af8118b35c927341f09c4d715a0f952cb390
[INFO] running `Command { std: "docker" "start" "-a" "2e0e3cc7e222975192411afb84d8af8118b35c927341f09c4d715a0f952cb390", kill_on_drop: false }`
[INFO] [stderr]    Compiling Monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::TokenBuilder`
[INFO] [stdout]  --> src/lexer.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::TokenBuilder;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read` and `Write`
[INFO] [stdout]  --> src/repl.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `my_token` is never read
[INFO] [stdout]   --> src/repl.rs:23:21
[INFO] [stdout]    |
[INFO] [stdout] 23 |             let mut my_token: Token = Token::new(TokenType::EOF, "".to_string());
[INFO] [stdout]    |                     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Monkey` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `monkey`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a module
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod lexer;
[INFO] [stdout]   | ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/lexer.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![warn(missing_docs)]
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct
[INFO] [stdout]  --> src/lexer.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Lexer {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `Command { std: "docker" "inspect" "2e0e3cc7e222975192411afb84d8af8118b35c927341f09c4d715a0f952cb390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e0e3cc7e222975192411afb84d8af8118b35c927341f09c4d715a0f952cb390", kill_on_drop: false }`
[INFO] [stdout] 2e0e3cc7e222975192411afb84d8af8118b35c927341f09c4d715a0f952cb390
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebfab0c2bc1cedadd2d1f5c763d58a19a0a6f8297fe8dc1dad17680381384199
[INFO] running `Command { std: "docker" "start" "-a" "ebfab0c2bc1cedadd2d1f5c763d58a19a0a6f8297fe8dc1dad17680381384199", kill_on_drop: false }`
[INFO] [stderr]    Compiling Monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::TokenBuilder`
[INFO] [stdout]  --> src/lexer.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::TokenBuilder;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read` and `Write`
[INFO] [stdout]  --> src/repl.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `my_token` is never read
[INFO] [stdout]   --> src/repl.rs:23:21
[INFO] [stdout]    |
[INFO] [stdout] 23 |             let mut my_token: Token = Token::new(TokenType::EOF, "".to_string());
[INFO] [stdout]    |                     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Monkey` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `monkey`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a module
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod lexer;
[INFO] [stdout]   | ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/lexer.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![warn(missing_docs)]
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct
[INFO] [stdout]  --> src/lexer.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Lexer {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `test_stmt`
[INFO] [stdout]   --> tests/parser.rs:62:24
[INFO] [stdout]    |
[INFO] [stdout] 62 |     matches!(cmp_stmt, test_stmt)
[INFO] [stdout]    |                        ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_stmt`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `test_stmt`
[INFO] [stdout]   --> tests/parser.rs:60:22
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn assert_identifier(test_stmt: Stmt, name: &str) -> bool {
[INFO] [stdout]    |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_stmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `test_stmt`
[INFO] [stdout]   --> tests/parser.rs:68:24
[INFO] [stdout]    |
[INFO] [stdout] 68 |     matches!(cmp_stmt, test_stmt)
[INFO] [stdout]    |                        ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_stmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `test_expr`
[INFO] [stdout]   --> tests/parser.rs:66:27
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn assert_identifier_expr(test_expr: Expr, name: &str) -> bool{
[INFO] [stdout]    |                           ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::TokenBuilder`
[INFO] [stdout]  --> src/lexer.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::TokenBuilder;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read` and `Write`
[INFO] [stdout]  --> src/repl.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_boolean_expression` is never used
[INFO] [stdout]   --> tests/parser.rs:72:4
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn test_boolean_expression(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `my_token` is never read
[INFO] [stdout]   --> src/repl.rs:23:21
[INFO] [stdout]    |
[INFO] [stdout] 23 |             let mut my_token: Token = Token::new(TokenType::EOF, "".to_string());
[INFO] [stdout]    |                     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a module
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod lexer;
[INFO] [stdout]   | ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/lexer.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![warn(missing_docs)]
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct
[INFO] [stdout]  --> src/lexer.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Lexer {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.99s
[INFO] running `Command { std: "docker" "inspect" "ebfab0c2bc1cedadd2d1f5c763d58a19a0a6f8297fe8dc1dad17680381384199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebfab0c2bc1cedadd2d1f5c763d58a19a0a6f8297fe8dc1dad17680381384199", kill_on_drop: false }`
[INFO] [stdout] ebfab0c2bc1cedadd2d1f5c763d58a19a0a6f8297fe8dc1dad17680381384199
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3078bc731db451e48a29287af75666c3a97c09ec0bb9ea29629693f380add9d0
[INFO] running `Command { std: "docker" "start" "-a" "3078bc731db451e48a29287af75666c3a97c09ec0bb9ea29629693f380add9d0", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::TokenBuilder`
[INFO] [stderr]  --> src/lexer.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::TokenBuilder;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Read` and `Write`
[INFO] [stderr]  --> src/repl.rs:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::{Read, Write};
[INFO] [stderr]   |               ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `my_token` is never read
[INFO] [stderr]   --> src/repl.rs:23:21
[INFO] [stderr]    |
[INFO] [stderr] 23 |             let mut my_token: Token = Token::new(TokenType::EOF, "".to_string());
[INFO] [stderr]    |                     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Monkey` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = help: convert the identifier to snake case: `monkey`
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for a module
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub mod lexer;
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]  --> src/lexer.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![warn(missing_docs)]
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for a struct
[INFO] [stderr]  --> src/lexer.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Lexer {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `Monkey` (lib) generated 6 warnings (run `cargo fix --lib -p Monkey` to apply 2 suggestions)
[INFO] [stderr] warning: unused variable: `test_stmt`
[INFO] [stderr]   --> tests/parser.rs:62:24
[INFO] [stderr]    |
[INFO] [stderr] 62 |     matches!(cmp_stmt, test_stmt)
[INFO] [stderr]    |                        ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_stmt`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `test_stmt`
[INFO] [stderr]   --> tests/parser.rs:60:22
[INFO] [stderr]    |
[INFO] [stderr] 60 | fn assert_identifier(test_stmt: Stmt, name: &str) -> bool {
[INFO] [stderr]    |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_stmt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `test_stmt`
[INFO] [stderr]   --> tests/parser.rs:68:24
[INFO] [stderr]    |
[INFO] [stderr] 68 |     matches!(cmp_stmt, test_stmt)
[INFO] [stderr]    |                        ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_stmt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `test_expr`
[INFO] [stderr]   --> tests/parser.rs:66:27
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn assert_identifier_expr(test_expr: Expr, name: &str) -> bool{
[INFO] [stderr]    |                           ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_expr`
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_boolean_expression` is never used
[INFO] [stderr]   --> tests/parser.rs:72:4
[INFO] [stderr]    |
[INFO] [stderr] 72 | fn test_boolean_expression(){
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `Monkey` (test "parser") generated 5 warnings
[INFO] [stderr] warning: `Monkey` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/Monkey-94035f23885306f7)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/Monkey-c2f20652dc93ddcc)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/ast.rs (/opt/rustwide/target/debug/deps/ast-ce50f60f684498be)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_to_tring ... ok
[INFO] [stderr]      Running tests/lexer.rs (/opt/rustwide/target/debug/deps/lexer-e986735557cd0485)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test read_char_works ... ok
[INFO] [stderr]      Running tests/parser.rs (/opt/rustwide/target/debug/deps/parser-1ccc09d1e718cbdb)
[INFO] [stdout] test read_identifier_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test test_functions ... ok
[INFO] [stdout] test test_integer_literal_exp ... ok
[INFO] [stdout] test test_function_call ... ok
[INFO] [stdout] test test_prefix_exp ... ok
[INFO] [stdout] test test_ifelse ... ok
[INFO] [stdout] test test_let_statement ... ok
[INFO] [stdout] test test_operator_precedence ... ok
[INFO] [stdout] test test_identifier_expression ... ok
[INFO] [stdout] test test_return_statement ... FAILED
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test parser`
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test_return_statement stdout ----
[INFO] [stdout] Parsing token for left_expr    ILLEGAL
[INFO] [stdout] No parsing function found for ILLEGAL
[INFO] [stdout] No left expression, returning none...
[INFO] [stdout] No stmt returned...
[INFO] [stdout] Parsing token for left_expr    RETURN
[INFO] [stdout] No parsing function found for RETURN
[INFO] [stdout] No left expression, returning none...
[INFO] [stdout] thread 'test_return_statement' panicked at src/parser.rs:334:62:
[INFO] [stdout] called `Option::unwrap()` on a `None` value
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5e50029fe2da - std::backtrace_rs::backtrace::libunwind::trace::h8810477743020387
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x5e50029fe2da - std::backtrace_rs::backtrace::trace_unsynchronized::h3aa55355dd6c54a6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5e50029fe2da - std::sys::backtrace::_print_fmt::h8588b0f62410823f
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5e50029fe2da - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h98c26ac25ffe89bb
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5e5002a23d63 - core::fmt::rt::Argument::fmt::hf95377f4aebd453b
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x5e5002a23d63 - core::fmt::write::h0dd5f6e2238c7982
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/mod.rs:1189:21
[INFO] [stdout]    6:     0x5e50029fb473 - std::io::Write::write_fmt::h03bb0ca26e6faf8c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/io/mod.rs:1884:15
[INFO] [stdout]    7:     0x5e50029fe122 - std::sys::backtrace::BacktraceLock::print::h5c19c1c038ee186d
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x5e50029ff75d - std::panicking::default_hook::{{closure}}::h77172f079a1fcb13
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x5e50029ff567 - std::panicking::default_hook::he5f8e3b203ccddba
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:292:9
[INFO] [stdout]   10:     0x5e50029ab877 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7a3c7b4a1ae77f2f
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9
[INFO] [stdout]   11:     0x5e50029ab877 - test::test_main::{{closure}}::hf0d3b69ae9b353d1
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x5e50029ffe08 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6332e82e7b189abd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9
[INFO] [stdout]   13:     0x5e50029ffe08 - std::panicking::rust_panic_with_hook::h53863d4e9018df39
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:809:13
[INFO] [stdout]   14:     0x5e50029ffb96 - std::panicking::begin_panic_handler::{{closure}}::h67280e6fa0757873
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:667:13
[INFO] [stdout]   15:     0x5e50029fe7b9 - std::sys::backtrace::__rust_end_short_backtrace::h1dac3f54d6fbbeb2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   16:     0x5e50029ff85c - rust_begin_unwind
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:665:5
[INFO] [stdout]   17:     0x5e5002969ab0 - core::panicking::panic_fmt::h6792bd1b2bf01041
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panicking.rs:76:14
[INFO] [stdout]   18:     0x5e5002969b3c - core::panicking::panic::hbb5c236a846c507c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panicking.rs:148:5
[INFO] [stdout]   19:     0x5e5002969a29 - core::option::unwrap_failed::hc5b7b0e3b50bafe9
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/option.rs:2009:5
[INFO] [stdout]   20:     0x5e50029bd521 - core::option::Option<T>::unwrap::h246fcddd3ae47250
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/option.rs:972:21
[INFO] [stdout]   21:     0x5e50029bd521 - Monkey::parser::Parser::parse_return_statement::hb4194635c213e3c5
[INFO] [stdout]                                at /opt/rustwide/workdir/src/parser.rs:334:20
[INFO] [stdout]   22:     0x5e50029bb433 - Monkey::parser::Parser::parse_statement::ha7465913899c55df
[INFO] [stdout]                                at /opt/rustwide/workdir/src/parser.rs:142:34
[INFO] [stdout]   23:     0x5e50029bb212 - Monkey::parser::Parser::parseprogramm::hb68d1deff59f8cbc
[INFO] [stdout]                                at /opt/rustwide/workdir/src/parser.rs:128:33
[INFO] [stdout]   24:     0x5e500296ee28 - parser::test_return_statement::hf80b79084a8d3023
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/parser.rs:48:29
[INFO] [stdout]   25:     0x5e500296edb7 - parser::test_return_statement::{{closure}}::ha1f40a153e7098f5
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/parser.rs:41:27
[INFO] [stdout]   26:     0x5e500296a8b6 - core::ops::function::FnOnce::call_once::h08653d655dfa4391
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   27:     0x5e50029b039b - core::ops::function::FnOnce::call_once::h871bf86719ec9aa4
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   28:     0x5e50029b039b - test::__rust_begin_short_backtrace::h2167df1e2b7d76fd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:632:18
[INFO] [stdout]   29:     0x5e50029afd88 - test::run_test_in_process::{{closure}}::h15d92f75a3adfb79
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:60
[INFO] [stdout]   30:     0x5e50029afd88 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb6c8955835a8dbbb
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   31:     0x5e50029afd88 - std::panicking::try::do_call::hc79d0fc888a0bd30
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40
[INFO] [stdout]   32:     0x5e50029afd88 - std::panicking::try::hb8a7878e3a8589d6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19
[INFO] [stdout]   33:     0x5e50029afd88 - std::panic::catch_unwind::hb8e4600ff0ff5cfa
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14
[INFO] [stdout]   34:     0x5e50029afd88 - test::run_test_in_process::hc2900b0b18688dd6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:27
[INFO] [stdout]   35:     0x5e50029afd88 - test::run_test::{{closure}}::hac2a9cb07be3d48d
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:576:43
[INFO] [stdout]   36:     0x5e500297382a - test::run_test::{{closure}}::h4a5b729e66a38cd8
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:606:41
[INFO] [stdout]   37:     0x5e500297382a - std::sys::backtrace::__rust_begin_short_backtrace::h0496fb742492f573
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   38:     0x5e50029771a4 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hbb6d257c550a54bd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:561:17
[INFO] [stdout]   39:     0x5e50029771a4 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h46696fe4a6832328
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   40:     0x5e50029771a4 - std::panicking::try::do_call::h2625a51b667bfb64
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40
[INFO] [stdout]   41:     0x5e50029771a4 - std::panicking::try::hb956a59a1973aa4c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19
[INFO] [stdout]   42:     0x5e50029771a4 - std::panic::catch_unwind::h64f3b9d1067ef6a0
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14
[INFO] [stdout]   43:     0x5e50029771a4 - std::thread::Builder::spawn_unchecked_::{{closure}}::h42b2841295b6c0b2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:559:30
[INFO] [stdout]   44:     0x5e50029771a4 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6127de71b8124639
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   45:     0x5e5002a03d4b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h42f0ba71002a1b2c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9
[INFO] [stdout]   46:     0x5e5002a03d4b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::had9e47d7a3dcecb8
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9
[INFO] [stdout]   47:     0x5e5002a03d4b - std::sys::pal::unix::thread::Thread::new::thread_start::h48cf765408f6f5f2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   48:     0x73e9e88d3ac3 - <unknown>
[INFO] [stdout]   49:     0x73e9e8964a04 - clone
[INFO] [stdout]   50:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test_return_statement
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 8 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3078bc731db451e48a29287af75666c3a97c09ec0bb9ea29629693f380add9d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3078bc731db451e48a29287af75666c3a97c09ec0bb9ea29629693f380add9d0", kill_on_drop: false }`
[INFO] [stdout] 3078bc731db451e48a29287af75666c3a97c09ec0bb9ea29629693f380add9d0
