[INFO] cloning repository https://github.com/dorakueyon/rust-monkey-compiler [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dorakueyon/rust-monkey-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdorakueyon%2Frust-monkey-compiler", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdorakueyon%2Frust-monkey-compiler'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 997aa38e248e75d63a1f4300e439827061998f3d [INFO] checking dorakueyon/rust-monkey-compiler against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdorakueyon%2Frust-monkey-compiler" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dorakueyon/rust-monkey-compiler on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dorakueyon/rust-monkey-compiler [INFO] finished tweaking git repo https://github.com/dorakueyon/rust-monkey-compiler [INFO] tweaked toml for git repo https://github.com/dorakueyon/rust-monkey-compiler written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/dorakueyon/rust-monkey-compiler 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8c197657959ffc03c39eb5a9083e8ebfdd49c243604d7878593e33353e7288a0 [INFO] running `Command { std: "docker" "start" "-a" "8c197657959ffc03c39eb5a9083e8ebfdd49c243604d7878593e33353e7288a0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8c197657959ffc03c39eb5a9083e8ebfdd49c243604d7878593e33353e7288a0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8c197657959ffc03c39eb5a9083e8ebfdd49c243604d7878593e33353e7288a0", kill_on_drop: false }` [INFO] [stdout] 8c197657959ffc03c39eb5a9083e8ebfdd49c243604d7878593e33353e7288a0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 677d1c3210aa2e98485dc2825ea4da3a505743a967add75000163e53ed4fe77d [INFO] running `Command { std: "docker" "start" "-a" "677d1c3210aa2e98485dc2825ea4da3a505743a967add75000163e53ed4fe77d", kill_on_drop: false }` [INFO] [stderr] Checking rust-mini-interpreter v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `Lexer`, `Parser` [INFO] [stdout] --> src/evaluator.rs:2:76 [INFO] [stdout] | [INFO] [stdout] 2 | BlockStatement, Environment, Errors, Expression, HashPair, Identifier, Lexer, Object, Parser, [INFO] [stdout] | ^^^^^ ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s [INFO] running `Command { std: "docker" "inspect" "677d1c3210aa2e98485dc2825ea4da3a505743a967add75000163e53ed4fe77d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "677d1c3210aa2e98485dc2825ea4da3a505743a967add75000163e53ed4fe77d", kill_on_drop: false }` [INFO] [stdout] 677d1c3210aa2e98485dc2825ea4da3a505743a967add75000163e53ed4fe77d [INFO] checking dorakueyon/rust-monkey-compiler against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdorakueyon%2Frust-monkey-compiler" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dorakueyon/rust-monkey-compiler on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dorakueyon/rust-monkey-compiler [INFO] finished tweaking git repo https://github.com/dorakueyon/rust-monkey-compiler [INFO] tweaked toml for git repo https://github.com/dorakueyon/rust-monkey-compiler written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/dorakueyon/rust-monkey-compiler 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4c601b34f0be4882cf430abbc3accadee8ae1185470b6aab06bed188c03d1b71 [INFO] running `Command { std: "docker" "start" "-a" "4c601b34f0be4882cf430abbc3accadee8ae1185470b6aab06bed188c03d1b71", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4c601b34f0be4882cf430abbc3accadee8ae1185470b6aab06bed188c03d1b71", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4c601b34f0be4882cf430abbc3accadee8ae1185470b6aab06bed188c03d1b71", kill_on_drop: false }` [INFO] [stdout] 4c601b34f0be4882cf430abbc3accadee8ae1185470b6aab06bed188c03d1b71 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8fb7ee25afc4d97ecacb3c468826b26ac46f1419581c16119561fcd37cf71dde [INFO] running `Command { std: "docker" "start" "-a" "8fb7ee25afc4d97ecacb3c468826b26ac46f1419581c16119561fcd37cf71dde", kill_on_drop: false }` [INFO] [stderr] Checking rust-mini-interpreter v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `Lexer`, `Parser` [INFO] [stdout] --> src/evaluator.rs:2:76 [INFO] [stdout] | [INFO] [stdout] 2 | BlockStatement, Environment, Errors, Expression, HashPair, Identifier, Lexer, Object, Parser, [INFO] [stdout] | ^^^^^ ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/parser.rs:73:9 [INFO] [stdout] | [INFO] [stdout] 73 | / match self.current_token.token_type { [INFO] [stdout] 74 | | TokenType::Let => return Ok(self.parse_let_statement()?), [INFO] [stdout] 75 | | TokenType::Return => return Ok(self.parse_return_statement()?), [INFO] [stdout] 76 | | _ => return Ok(self.parse_expression_statement()?), [INFO] [stdout] 77 | | }; [INFO] [stdout] | |_________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/parser.rs:73:9 [INFO] [stdout] | [INFO] [stdout] 73 | / match self.current_token.token_type { [INFO] [stdout] 74 | | TokenType::Let => return Ok(self.parse_let_statement()?), [INFO] [stdout] 75 | | TokenType::Return => return Ok(self.parse_return_statement()?), [INFO] [stdout] 76 | | _ => return Ok(self.parse_expression_statement()?), [INFO] [stdout] 77 | | }; [INFO] [stdout] | |_________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rust-mini-interpreter` (bin "rust-mini-interpreter") due to 2 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rust-mini-interpreter` (bin "rust-mini-interpreter" test) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "8fb7ee25afc4d97ecacb3c468826b26ac46f1419581c16119561fcd37cf71dde", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8fb7ee25afc4d97ecacb3c468826b26ac46f1419581c16119561fcd37cf71dde", kill_on_drop: false }` [INFO] [stdout] 8fb7ee25afc4d97ecacb3c468826b26ac46f1419581c16119561fcd37cf71dde