[INFO] cloning repository https://github.com/ekusiadadus/monkey_interpreter [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ekusiadadus/monkey_interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fekusiadadus%2Fmonkey_interpreter", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fekusiadadus%2Fmonkey_interpreter'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 56f0dea9e35f31b9c74926865368fc552fc72f72 [INFO] checking ekusiadadus/monkey_interpreter against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fekusiadadus%2Fmonkey_interpreter" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ekusiadadus/monkey_interpreter on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ekusiadadus/monkey_interpreter [INFO] finished tweaking git repo https://github.com/ekusiadadus/monkey_interpreter [INFO] tweaked toml for git repo https://github.com/ekusiadadus/monkey_interpreter written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/ekusiadadus/monkey_interpreter 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fdae896c607ff458ce026d2d1f99cb6ea7b8d805ffa2812aecc193e862a454b3 [INFO] running `Command { std: "docker" "start" "-a" "fdae896c607ff458ce026d2d1f99cb6ea7b8d805ffa2812aecc193e862a454b3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fdae896c607ff458ce026d2d1f99cb6ea7b8d805ffa2812aecc193e862a454b3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fdae896c607ff458ce026d2d1f99cb6ea7b8d805ffa2812aecc193e862a454b3", kill_on_drop: false }` [INFO] [stdout] fdae896c607ff458ce026d2d1f99cb6ea7b8d805ffa2812aecc193e862a454b3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4f2d19a6e6c451e0fffcef602835161d9fab8b04bdfe1bee5ac06269705447fb [INFO] running `Command { std: "docker" "start" "-a" "4f2d19a6e6c451e0fffcef602835161d9fab8b04bdfe1bee5ac06269705447fb", kill_on_drop: false }` [INFO] [stderr] Checking monkey_interpreter v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `self` [INFO] [stdout] --> src/parser.rs:7:13 [INFO] [stdout] | [INFO] [stdout] 7 | lexer::{self, Lexer}, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self` [INFO] [stdout] --> src/parser.rs:7:13 [INFO] [stdout] | [INFO] [stdout] 7 | lexer::{self, Lexer}, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Program` [INFO] [stdout] --> src/parser.rs:240:37 [INFO] [stdout] | [INFO] [stdout] 240 | ast::{ExpressionNode, Node, Program, StatementNode}, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `precedence_level` [INFO] [stdout] --> src/parser.rs:179:36 [INFO] [stdout] | [INFO] [stdout] 179 | fn parse_expression(&mut self, precedence_level: PrecedenceLevel) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_precedence_level` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `PrefixParseFn` is never used [INFO] [stdout] --> src/parser.rs:11:6 [INFO] [stdout] | [INFO] [stdout] 11 | type PrefixParseFn = fn(parser: &mut Parser) -> Option; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `InfixParseFn` is never used [INFO] [stdout] --> src/parser.rs:12:6 [INFO] [stdout] | [INFO] [stdout] 12 | type InfixParseFn = fn(parser: &mut Parser, exp: ExpressionNode) -> Option; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `PrecedenceLevel` is never used [INFO] [stdout] --> src/parser.rs:14:6 [INFO] [stdout] | [INFO] [stdout] 14 | enum PrecedenceLevel { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Parser` is never constructed [INFO] [stdout] --> src/parser.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | struct Parser { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/parser.rs:34:8 [INFO] [stdout] | [INFO] [stdout] 33 | impl Parser { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 34 | fn new(lexer: Lexer) -> Parser { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 54 | fn parse_identifier(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 61 | fn parse_integer_literal(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 80 | fn parse_prefix_expression(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 97 | fn next_token(&mut self) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 102 | pub fn parse_program(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 115 | pub fn parse_statement(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 123 | pub fn parse_let_statement(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 151 | pub fn parse_return_statement(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 166 | fn parse_expression_statement(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 179 | fn parse_expression(&mut self, precedence_level: PrecedenceLevel) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 191 | fn no_prefix_parse_fn_error(&mut self, token_kind: TokenKind) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 196 | fn expect_peek(&mut self, token_kind: TokenKind) -> bool { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 205 | fn peek_token_is(&self, token_kind: TokenKind) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 209 | fn cur_token_is(&self, token_kind: TokenKind) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 213 | fn errors(&self) -> &Vec { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 217 | fn peek_error(&mut self, token_kind: TokenKind) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 226 | fn register_prefix(&mut self, token_kind: TokenKind, func: PrefixParseFn) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 230 | fn register_infix(&mut self, token_kind: TokenKind, func: InfixParseFn) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `precedence_level` [INFO] [stdout] --> src/parser.rs:179:36 [INFO] [stdout] | [INFO] [stdout] 179 | fn parse_expression(&mut self, precedence_level: PrecedenceLevel) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_precedence_level` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Equals`, `LessGreater`, `Sum`, `Product`, and `Call` are never constructed [INFO] [stdout] --> src/parser.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 14 | enum PrecedenceLevel { [INFO] [stdout] | --------------- variants in this enum [INFO] [stdout] 15 | Lowest = 0, [INFO] [stdout] 16 | Equals = 1, // == [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 17 | LessGreater = 2, // > or < [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 18 | Sum = 3, // + [INFO] [stdout] | ^^^ [INFO] [stdout] 19 | Product = 4, // * [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 20 | Prefix = 5, // - [INFO] [stdout] 21 | Call = 6, // function calling [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `infix_parse_fns` is never read [INFO] [stdout] --> src/parser.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 24 | struct Parser { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 30 | infix_parse_fns: HashMap, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `register_infix` is never used [INFO] [stdout] --> src/parser.rs:230:8 [INFO] [stdout] | [INFO] [stdout] 33 | impl Parser { [INFO] [stdout] | ----------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 230 | fn register_infix(&mut self, token_kind: TokenKind, func: InfixParseFn) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "4f2d19a6e6c451e0fffcef602835161d9fab8b04bdfe1bee5ac06269705447fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4f2d19a6e6c451e0fffcef602835161d9fab8b04bdfe1bee5ac06269705447fb", kill_on_drop: false }` [INFO] [stdout] 4f2d19a6e6c451e0fffcef602835161d9fab8b04bdfe1bee5ac06269705447fb