[INFO] cloning repository https://github.com/pdthompson5/Rusty_Lox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pdthompson5/Rusty_Lox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpdthompson5%2FRusty_Lox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpdthompson5%2FRusty_Lox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 31d7ba3449d70353c0ab75d197977d3370a3908d
[INFO] checking pdthompson5/Rusty_Lox against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpdthompson5%2FRusty_Lox" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pdthompson5/Rusty_Lox 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/pdthompson5/Rusty_Lox
[INFO] finished tweaking git repo https://github.com/pdthompson5/Rusty_Lox
[INFO] tweaked toml for git repo https://github.com/pdthompson5/Rusty_Lox written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pdthompson5/Rusty_Lox 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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 91305566df94f488aaa2fe5912137ace1305d5f937e8b2898930744a14c3842a
[INFO] running `Command { std: "docker" "start" "-a" "91305566df94f488aaa2fe5912137ace1305d5f937e8b2898930744a14c3842a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91305566df94f488aaa2fe5912137ace1305d5f937e8b2898930744a14c3842a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91305566df94f488aaa2fe5912137ace1305d5f937e8b2898930744a14c3842a", kill_on_drop: false }`
[INFO] [stdout] 91305566df94f488aaa2fe5912137ace1305d5f937e8b2898930744a14c3842a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2a17960c8b9007a3c9d4d9078fa49fe1dee6846e44f8700dd6caeb4b008a7d43
[INFO] running `Command { std: "docker" "start" "-a" "2a17960c8b9007a3c9d4d9078fa49fe1dee6846e44f8700dd6caeb4b008a7d43", kill_on_drop: false }`
[INFO] [stderr]     Checking rusty_lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "2a17960c8b9007a3c9d4d9078fa49fe1dee6846e44f8700dd6caeb4b008a7d43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a17960c8b9007a3c9d4d9078fa49fe1dee6846e44f8700dd6caeb4b008a7d43", kill_on_drop: false }`
[INFO] [stdout] 2a17960c8b9007a3c9d4d9078fa49fe1dee6846e44f8700dd6caeb4b008a7d43
[INFO] checking pdthompson5/Rusty_Lox against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpdthompson5%2FRusty_Lox" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pdthompson5/Rusty_Lox 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/pdthompson5/Rusty_Lox
[INFO] finished tweaking git repo https://github.com/pdthompson5/Rusty_Lox
[INFO] tweaked toml for git repo https://github.com/pdthompson5/Rusty_Lox written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/pdthompson5/Rusty_Lox 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 272eb644bf89b653cb0f5b256043a25edfa3eb6fef3bea63604045b62f81ec12
[INFO] running `Command { std: "docker" "start" "-a" "272eb644bf89b653cb0f5b256043a25edfa3eb6fef3bea63604045b62f81ec12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "272eb644bf89b653cb0f5b256043a25edfa3eb6fef3bea63604045b62f81ec12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "272eb644bf89b653cb0f5b256043a25edfa3eb6fef3bea63604045b62f81ec12", kill_on_drop: false }`
[INFO] [stdout] 272eb644bf89b653cb0f5b256043a25edfa3eb6fef3bea63604045b62f81ec12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d214ff82cf49219055f97f5624862abb89c926c30029ba1e69b743d3b50d1043
[INFO] running `Command { std: "docker" "start" "-a" "d214ff82cf49219055f97f5624862abb89c926c30029ba1e69b743d3b50d1043", kill_on_drop: false }`
[INFO] [stderr]     Checking rusty_lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/parser.rs:508:13
[INFO] [stdout]     |
[INFO] [stdout] 508 | /             if let Err(()) = self.consume(RIGHT_PAREN, "Expect ')' after expression".to_string()) {
[INFO] [stdout] 509 | |                 return Err(());
[INFO] [stdout] 510 | |             } else {
[INFO] [stdout] 511 | |                 return Ok(Rc::new(Expr::Grouping { expression: expr }));
[INFO] [stdout] 512 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/parser.rs:508:13
[INFO] [stdout]     |
[INFO] [stdout] 508 | /             if let Err(()) = self.consume(RIGHT_PAREN, "Expect ')' after expression".to_string()) {
[INFO] [stdout] 509 | |                 return Err(());
[INFO] [stdout] 510 | |             } else {
[INFO] [stdout] 511 | |                 return Ok(Rc::new(Expr::Grouping { expression: expr }));
[INFO] [stdout] 512 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[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] [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 `rusty_lox` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rusty_lox` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "d214ff82cf49219055f97f5624862abb89c926c30029ba1e69b743d3b50d1043", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d214ff82cf49219055f97f5624862abb89c926c30029ba1e69b743d3b50d1043", kill_on_drop: false }`
[INFO] [stdout] d214ff82cf49219055f97f5624862abb89c926c30029ba1e69b743d3b50d1043