[INFO] fetching crate woojin 0.1.5... [INFO] checking woojin-0.1.5 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate woojin 0.1.5 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate woojin 0.1.5 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 crates.io crate woojin 0.1.5 [INFO] finished tweaking crates.io crate woojin 0.1.5 [INFO] tweaked toml for crates.io crate woojin 0.1.5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate crates.io crate woojin 0.1.5 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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 26cf0d66498c79717ebb34b816ea1153a836fbb0e966e7b636f5bd4fb0524527 [INFO] running `Command { std: "docker" "start" "-a" "26cf0d66498c79717ebb34b816ea1153a836fbb0e966e7b636f5bd4fb0524527", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "26cf0d66498c79717ebb34b816ea1153a836fbb0e966e7b636f5bd4fb0524527", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "26cf0d66498c79717ebb34b816ea1153a836fbb0e966e7b636f5bd4fb0524527", kill_on_drop: false }` [INFO] [stdout] 26cf0d66498c79717ebb34b816ea1153a836fbb0e966e7b636f5bd4fb0524527 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 0f1a392b9b825a2cb066b8495324903f0d568803d0ea4237d26c188bd3e984b1 [INFO] running `Command { std: "docker" "start" "-a" "0f1a392b9b825a2cb066b8495324903f0d568803d0ea4237d26c188bd3e984b1", kill_on_drop: false }` [INFO] [stderr] Checking aho-corasick v1.0.1 [INFO] [stderr] Checking minimal-lexical v0.2.1 [INFO] [stderr] Checking regex-syntax v0.7.1 [INFO] [stderr] Checking nom v7.1.3 [INFO] [stderr] Checking regex v1.8.1 [INFO] [stderr] Checking woojin v0.1.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait `ToWoojinValue` is never used [INFO] [stdout] --> src/types/mod.rs:6:18 [INFO] [stdout] | [INFO] [stdout] 6 | pub(crate) trait ToWoojinValue { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/ast.rs:5:11 [INFO] [stdout] | [INFO] [stdout] 5 | Comment(String), [INFO] [stdout] | ------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 5 | Comment(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `ToWoojinValue` is never used [INFO] [stdout] --> src/types/mod.rs:6:18 [INFO] [stdout] | [INFO] [stdout] 6 | pub(crate) trait ToWoojinValue { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/ast.rs:5:11 [INFO] [stdout] | [INFO] [stdout] 5 | Comment(String), [INFO] [stdout] | ------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 5 | Comment(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.13s [INFO] running `Command { std: "docker" "inspect" "0f1a392b9b825a2cb066b8495324903f0d568803d0ea4237d26c188bd3e984b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0f1a392b9b825a2cb066b8495324903f0d568803d0ea4237d26c188bd3e984b1", kill_on_drop: false }` [INFO] [stdout] 0f1a392b9b825a2cb066b8495324903f0d568803d0ea4237d26c188bd3e984b1 [INFO] checking woojin-0.1.5 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate woojin 0.1.5 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate woojin 0.1.5 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 crates.io crate woojin 0.1.5 [INFO] finished tweaking crates.io crate woojin 0.1.5 [INFO] tweaked toml for crates.io crate woojin 0.1.5 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate crates.io crate woojin 0.1.5 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a8a5a280e94f3b2190b08476c8db3414b6e1477cc038ba2ee1a528244677d7be [INFO] running `Command { std: "docker" "start" "-a" "a8a5a280e94f3b2190b08476c8db3414b6e1477cc038ba2ee1a528244677d7be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a8a5a280e94f3b2190b08476c8db3414b6e1477cc038ba2ee1a528244677d7be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a8a5a280e94f3b2190b08476c8db3414b6e1477cc038ba2ee1a528244677d7be", kill_on_drop: false }` [INFO] [stdout] a8a5a280e94f3b2190b08476c8db3414b6e1477cc038ba2ee1a528244677d7be [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c4f9cf450ed1b73fa104814d4491ab8d88a7fa4b71fdb885ac8e5cded8249cdf [INFO] running `Command { std: "docker" "start" "-a" "c4f9cf450ed1b73fa104814d4491ab8d88a7fa4b71fdb885ac8e5cded8249cdf", kill_on_drop: false }` [INFO] [stderr] Checking aho-corasick v1.0.1 [INFO] [stderr] Checking regex-syntax v0.7.1 [INFO] [stderr] Checking minimal-lexical v0.2.1 [INFO] [stderr] Checking nom v7.1.3 [INFO] [stderr] Checking regex v1.8.1 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.8.1/src/exec.rs:899:13 [INFO] [stdout] | [INFO] [stdout] 899 | / match dfa::Fsm::reverse( [INFO] [stdout] 900 | | &self.ro.dfa_reverse, [INFO] [stdout] 901 | | self.cache.value(), [INFO] [stdout] 902 | | false, [INFO] [stdout] ... | [INFO] [stdout] 913 | | Quit => return Some(Quit), [INFO] [stdout] 914 | | }; [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] [stderr] error: could not compile `regex` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "c4f9cf450ed1b73fa104814d4491ab8d88a7fa4b71fdb885ac8e5cded8249cdf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c4f9cf450ed1b73fa104814d4491ab8d88a7fa4b71fdb885ac8e5cded8249cdf", kill_on_drop: false }` [INFO] [stdout] c4f9cf450ed1b73fa104814d4491ab8d88a7fa4b71fdb885ac8e5cded8249cdf