[INFO] cloning repository https://github.com/Mcpineapple/monkey-interpreter-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Mcpineapple/monkey-interpreter-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMcpineapple%2Fmonkey-interpreter-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMcpineapple%2Fmonkey-interpreter-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 401c64fd4bc93e765d65a798ebdcceebcd440b86
[INFO] testing Mcpineapple/monkey-interpreter-rs against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMcpineapple%2Fmonkey-interpreter-rs" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Mcpineapple/monkey-interpreter-rs
[INFO] finished tweaking git repo https://github.com/Mcpineapple/monkey-interpreter-rs
[INFO] tweaked toml for git repo https://github.com/Mcpineapple/monkey-interpreter-rs written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Mcpineapple/monkey-interpreter-rs on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Mcpineapple/monkey-interpreter-rs 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" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 31a97a43402e1f5de6edf9c021fc481905021403dc98d4e3e7fe15f7d336d820
[INFO] running `Command { std: "docker" "start" "-a" "31a97a43402e1f5de6edf9c021fc481905021403dc98d4e3e7fe15f7d336d820", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31a97a43402e1f5de6edf9c021fc481905021403dc98d4e3e7fe15f7d336d820", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31a97a43402e1f5de6edf9c021fc481905021403dc98d4e3e7fe15f7d336d820", kill_on_drop: false }`
[INFO] [stdout] 31a97a43402e1f5de6edf9c021fc481905021403dc98d4e3e7fe15f7d336d820
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7ed289b1fd350e226fa18709ba4e2ff215b7fe1b048f7f41c90929acc117961
[INFO] running `Command { std: "docker" "start" "-a" "d7ed289b1fd350e226fa18709ba4e2ff215b7fe1b048f7f41c90929acc117961", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.181
[INFO] [stderr]    Compiling whoami v2.1.1
[INFO] [stderr]    Compiling monkey-interpreter-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> src/ast.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::format;
[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: `crate::token`
[INFO] [stdout]  --> src/repl.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::token;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/token.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         other => Token::Ident(string),
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Statement` is never used
[INFO] [stdout]  --> src/ast.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Statement {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expression` is never used
[INFO] [stdout]   --> src/ast.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub enum Expression {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Program` is never constructed
[INFO] [stdout]   --> src/ast.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Program {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]  --> src/parser.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Parser {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/parser.rs:14:8
[INFO] [stdout]     |
[INFO] [stdout]  13 | impl Parser {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout]  14 |     fn new(lex: lexer::Lexer) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  24 |     fn next_token(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  29 |     fn parse_program(&mut self) -> ast::Program {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  45 |     fn parse_statement(&mut self) -> Option<ast::Statement> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  55 |     fn parse_let_statement(&mut self) -> Option<ast::Statement> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  79 |     fn expect_peek(&mut self, t: token::Token) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  89 |     fn peek_token_is(&self, t: token::Token) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  93 |     fn cur_token_is(&self, t: token::Token) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  97 |     fn get_errors(&self) -> Vec<String> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn peek_error(&mut self, t: token::Token) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `same_tok` is never used
[INFO] [stdout]   --> src/token.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl Token {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 50 |     pub fn same_tok(&self, other: Self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "d7ed289b1fd350e226fa18709ba4e2ff215b7fe1b048f7f41c90929acc117961", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7ed289b1fd350e226fa18709ba4e2ff215b7fe1b048f7f41c90929acc117961", kill_on_drop: false }`
[INFO] [stdout] d7ed289b1fd350e226fa18709ba4e2ff215b7fe1b048f7f41c90929acc117961
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a22cdf95595ab7ddbf7f41e34ca3c5ad82d138292b1e9312ecd5c2f93de743e8
[INFO] running `Command { std: "docker" "start" "-a" "a22cdf95595ab7ddbf7f41e34ca3c5ad82d138292b1e9312ecd5c2f93de743e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling monkey-interpreter-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> src/ast.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::format;
[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: `crate::ast::Statement`
[INFO] [stdout]    --> src/parser.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |     use crate::ast::Statement;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::token`
[INFO] [stdout]  --> src/repl.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::token;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/parser.rs:188:16
[INFO] [stdout]     |
[INFO] [stdout] 188 |             if let n = token::Token::Ident(name.to_string()) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/parser.rs:179:19
[INFO] [stdout]     |
[INFO] [stdout] 179 |             name: n,
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/parser.rs:180:20
[INFO] [stdout]     |
[INFO] [stdout] 180 |             value: v,
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/parser.rs:188:20
[INFO] [stdout]     |
[INFO] [stdout] 188 |             if let n = token::Token::Ident(name.to_string()) {
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/parser.rs:233:16
[INFO] [stdout]     |
[INFO] [stdout] 233 |             if let v = ast::Expression::Identifier(token::Token::Ident(number.to_string())) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/parser.rs:225:27
[INFO] [stdout]     |
[INFO] [stdout] 225 |             return_value: v,
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/parser.rs:233:20
[INFO] [stdout]     |
[INFO] [stdout] 233 |             if let v = ast::Expression::Identifier(token::Token::Ident(number.to_string())) {
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/token.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         other => Token::Ident(string),
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ReturnStatement` is never constructed
[INFO] [stdout]   --> src/ast.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub enum Statement {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 11 |     ReturnStatement {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Statement` 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 `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "a22cdf95595ab7ddbf7f41e34ca3c5ad82d138292b1e9312ecd5c2f93de743e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a22cdf95595ab7ddbf7f41e34ca3c5ad82d138292b1e9312ecd5c2f93de743e8", kill_on_drop: false }`
[INFO] [stdout] a22cdf95595ab7ddbf7f41e34ca3c5ad82d138292b1e9312ecd5c2f93de743e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 74124c4b097fb66e498d4b3698d5768941775c8882762e14a0e5a307f2169790
[INFO] running `Command { std: "docker" "start" "-a" "74124c4b097fb66e498d4b3698d5768941775c8882762e14a0e5a307f2169790", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::fmt::format`
[INFO] [stderr]  --> src/ast.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fmt::format;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::ast::Statement`
[INFO] [stderr]    --> src/parser.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |     use crate::ast::Statement;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::token`
[INFO] [stderr]  --> src/repl.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::token;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: irrefutable `if let` pattern
[INFO] [stderr]    --> src/parser.rs:188:16
[INFO] [stderr]     |
[INFO] [stderr] 188 |             if let n = token::Token::Ident(name.to_string()) {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stderr]     = help: consider replacing the `if let` with a `let`
[INFO] [stderr]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/parser.rs:179:19
[INFO] [stderr]     |
[INFO] [stderr] 179 |             name: n,
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/parser.rs:180:20
[INFO] [stderr]     |
[INFO] [stderr] 180 |             value: v,
[INFO] [stderr]     |                    ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/parser.rs:188:20
[INFO] [stderr]     |
[INFO] [stderr] 188 |             if let n = token::Token::Ident(name.to_string()) {
[INFO] [stderr]     |                    ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: irrefutable `if let` pattern
[INFO] [stderr]    --> src/parser.rs:233:16
[INFO] [stderr]     |
[INFO] [stderr] 233 |             if let v = ast::Expression::Identifier(token::Token::Ident(number.to_string())) {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stderr]     = help: consider replacing the `if let` with a `let`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/parser.rs:225:27
[INFO] [stderr]     |
[INFO] [stderr] 225 |             return_value: v,
[INFO] [stderr]     |                           ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/parser.rs:233:20
[INFO] [stderr]     |
[INFO] [stderr] 233 |             if let v = ast::Expression::Identifier(token::Token::Ident(number.to_string())) {
[INFO] [stderr]     |                    ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/token.rs:103:9
[INFO] [stderr]     |
[INFO] [stderr] 103 |         other => Token::Ident(string),
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `ReturnStatement` is never constructed
[INFO] [stderr]   --> src/ast.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr]  5 | pub enum Statement {
[INFO] [stderr]    |          --------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 11 |     ReturnStatement {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Statement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `monkey-interpreter-rs` (bin "monkey-interpreter-rs" test) generated 12 warnings (run `cargo fix --bin "monkey-interpreter-rs" -p monkey-interpreter-rs --tests` to apply 9 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/monkey_interpreter_rs-37cc55df7ace0eac)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test lexer::tests::test_next_token_one ... ok
[INFO] [stdout] test parser::tests::test_let_statements ... ok
[INFO] [stdout] test lexer::tests::test_next_token_two ... ok
[INFO] [stdout] test parser::tests::test_bad_let_statements - should panic ... ok
[INFO] [stdout] test parser::tests::test_return_statements ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- parser::tests::test_return_statements stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'parser::tests::test_return_statements' (22) panicked at src/parser.rs:213:9:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: 9
[INFO] [stdout]  right: 3
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x64e5c8a3a5ca - std[ec419fa8110287d5]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x64e5c8a3a5ca - std[ec419fa8110287d5]::backtrace_rs::backtrace::trace_unsynchronized::<std[ec419fa8110287d5]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x64e5c8a3a5ca - std[ec419fa8110287d5]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x64e5c8a3a5ca - <<std[ec419fa8110287d5]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[35159d6ffb30e017]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x64e5c8a4e44a - <core[35159d6ffb30e017]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x64e5c8a4e44a - core[35159d6ffb30e017]::fmt::write
[INFO] [stdout]    6:     0x64e5c8a3ee02 - std[ec419fa8110287d5]::io::default_write_fmt::<alloc[a8a7aba520129d98]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/io/mod.rs:621:11
[INFO] [stdout]    7:     0x64e5c8a3ee02 - <alloc[a8a7aba520129d98]::vec::Vec<u8> as std[ec419fa8110287d5]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/io/mod.rs:1976:13
[INFO] [stdout]    8:     0x64e5c8a195cf - <std[ec419fa8110287d5]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x64e5c8a195cf - std[ec419fa8110287d5]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x64e5c8a32a79 - std[ec419fa8110287d5]::panicking::default_hook
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x64e5c89ce40c - <alloc[a8a7aba520129d98]::boxed::Box<dyn for<'a, 'b> core[35159d6ffb30e017]::ops::function::Fn<(&'a std[ec419fa8110287d5]::panic::PanicHookInfo<'b>,), Output = ()> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::marker::Send> as core[35159d6ffb30e017]::ops::function::Fn<(&std[ec419fa8110287d5]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/alloc/src/boxed.rs:2285:9
[INFO] [stdout]   12:     0x64e5c89ce40c - test[a8007afcd3effadc]::test_main_inner::<test[a8007afcd3effadc]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x64e5c8a32c32 - <alloc[a8a7aba520129d98]::boxed::Box<dyn for<'a, 'b> core[35159d6ffb30e017]::ops::function::Fn<(&'a std[ec419fa8110287d5]::panic::PanicHookInfo<'b>,), Output = ()> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::marker::Send> as core[35159d6ffb30e017]::ops::function::Fn<(&std[ec419fa8110287d5]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/alloc/src/boxed.rs:2285:9
[INFO] [stdout]   14:     0x64e5c8a32c32 - std[ec419fa8110287d5]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x64e5c8a19688 - std[ec419fa8110287d5]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x64e5c8a11029 - std[ec419fa8110287d5]::sys::backtrace::__rust_end_short_backtrace::<std[ec419fa8110287d5]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x64e5c8a1a39d - __rustc[cfb3622dd870db93]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x64e5c8a4ebdc - core[35159d6ffb30e017]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x64e5c8a4ea93 - core[35159d6ffb30e017]::panicking::assert_failed_inner
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/panicking.rs:439:17
[INFO] [stdout]   20:     0x64e5c8a4b0ad - core[35159d6ffb30e017]::panicking::assert_failed::<usize, usize>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/panicking.rs:394:5
[INFO] [stdout]   21:     0x64e5c89bd981 - monkey_interpreter_rs[c09386894dc05198]::parser::tests::test_return_statements
[INFO] [stdout]                                at /opt/rustwide/workdir/src/parser.rs:213:9
[INFO] [stdout]   22:     0x64e5c89b85b7 - monkey_interpreter_rs[c09386894dc05198]::parser::tests::test_return_statements::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/parser.rs:201:32
[INFO] [stdout]   23:     0x64e5c89c14f6 - <monkey_interpreter_rs[c09386894dc05198]::parser::tests::test_return_statements::{closure#0} as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x64e5c89c16eb - <fn() -> core[35159d6ffb30e017]::result::Result<(), alloc[a8a7aba520129d98]::string::String> as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x64e5c89c16eb - test[a8007afcd3effadc]::__rust_begin_short_backtrace::<core[35159d6ffb30e017]::result::Result<(), alloc[a8a7aba520129d98]::string::String>, fn() -> core[35159d6ffb30e017]::result::Result<(), alloc[a8a7aba520129d98]::string::String>>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/test/src/lib.rs:724:18
[INFO] [stdout]   26:     0x64e5c89ceedb - test[a8007afcd3effadc]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/test/src/lib.rs:747:74
[INFO] [stdout]   27:     0x64e5c89ceedb - <core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<test[a8007afcd3effadc]::run_test_in_process::{closure#0}> as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   28:     0x64e5c89ceedb - std[ec419fa8110287d5]::panicking::catch_unwind::do_call::<core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<test[a8007afcd3effadc]::run_test_in_process::{closure#0}>, core[35159d6ffb30e017]::result::Result<(), alloc[a8a7aba520129d98]::string::String>>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x64e5c89ceedb - std[ec419fa8110287d5]::panicking::catch_unwind::<core[35159d6ffb30e017]::result::Result<(), alloc[a8a7aba520129d98]::string::String>, core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<test[a8007afcd3effadc]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x64e5c89ceedb - std[ec419fa8110287d5]::panic::catch_unwind::<core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<test[a8007afcd3effadc]::run_test_in_process::{closure#0}>, core[35159d6ffb30e017]::result::Result<(), alloc[a8a7aba520129d98]::string::String>>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x64e5c89ceedb - test[a8007afcd3effadc]::run_test_in_process
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/test/src/lib.rs:747:27
[INFO] [stdout]   32:     0x64e5c89ceedb - test[a8007afcd3effadc]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/test/src/lib.rs:668:43
[INFO] [stdout]   33:     0x64e5c89c98b4 - test[a8007afcd3effadc]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/test/src/lib.rs:698:41
[INFO] [stdout]   34:     0x64e5c89c98b4 - std[ec419fa8110287d5]::sys::backtrace::__rust_begin_short_backtrace::<test[a8007afcd3effadc]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x64e5c89d1ae2 - std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked::<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   36:     0x64e5c89d1ae2 - <core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   37:     0x64e5c89d1ae2 - std[ec419fa8110287d5]::panicking::catch_unwind::do_call::<core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x64e5c89d1ae2 - std[ec419fa8110287d5]::panicking::catch_unwind::<(), core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x64e5c89d1ae2 - std[ec419fa8110287d5]::panic::catch_unwind::<core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x64e5c89d1ae2 - std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked::<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   41:     0x64e5c89d1ae2 - <std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1} as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x64e5c8a39edf - <alloc[a8a7aba520129d98]::boxed::Box<dyn core[35159d6ffb30e017]::ops::function::FnOnce<(), Output = ()> + core[35159d6ffb30e017]::marker::Send> as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/alloc/src/boxed.rs:2271:9
[INFO] [stdout]   43:     0x64e5c8a39edf - <std[ec419fa8110287d5]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   44:     0x70f90a0e1aa4 - <unknown>
[INFO] [stdout]   45:     0x70f90a16ea64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     parser::tests::test_return_statements
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 4 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-interpreter-rs`
[INFO] running `Command { std: "docker" "inspect" "74124c4b097fb66e498d4b3698d5768941775c8882762e14a0e5a307f2169790", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74124c4b097fb66e498d4b3698d5768941775c8882762e14a0e5a307f2169790", kill_on_drop: false }`
[INFO] [stdout] 74124c4b097fb66e498d4b3698d5768941775c8882762e14a0e5a307f2169790
