[INFO] cloning repository https://github.com/roidsaa/wordcount [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/roidsaa/wordcount" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froidsaa%2Fwordcount", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froidsaa%2Fwordcount'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7e3d89eae0d66e8289b2c25e453624c5dcaa3449 [INFO] checking roidsaa/wordcount against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froidsaa%2Fwordcount" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/roidsaa/wordcount 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/roidsaa/wordcount [INFO] finished tweaking git repo https://github.com/roidsaa/wordcount [INFO] tweaked toml for git repo https://github.com/roidsaa/wordcount written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/roidsaa/wordcount 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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded aho-corasick v0.7.8 [INFO] [stderr] Downloaded regex v1.3.4 [INFO] [stderr] Downloaded regex-syntax v0.6.14 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 90041b0f9ec804fbc5372a90f8df7c5d2d3058826a798faf403983ae872b7a9e [INFO] running `Command { std: "docker" "start" "-a" "90041b0f9ec804fbc5372a90f8df7c5d2d3058826a798faf403983ae872b7a9e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "90041b0f9ec804fbc5372a90f8df7c5d2d3058826a798faf403983ae872b7a9e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "90041b0f9ec804fbc5372a90f8df7c5d2d3058826a798faf403983ae872b7a9e", kill_on_drop: false }` [INFO] [stdout] 90041b0f9ec804fbc5372a90f8df7c5d2d3058826a798faf403983ae872b7a9e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 5e07669b0fe0aba815fa2d5a17bc0fc15e65a0e81833bfc4737afaaa63f47456 [INFO] running `Command { std: "docker" "start" "-a" "5e07669b0fe0aba815fa2d5a17bc0fc15e65a0e81833bfc4737afaaa63f47456", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.2 [INFO] [stderr] Checking regex-syntax v0.6.14 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking aho-corasick v0.7.8 [INFO] [stderr] Checking regex v1.3.4 [INFO] [stderr] Checking bicycle-book-wordcount v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: missing documentation for the crate [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | / #![warn(missing_docs)] [INFO] [stdout] 2 | | use std::env; [INFO] [stdout] 3 | | use std::fs::File; [INFO] [stdout] 4 | | use std::io::BufReader; [INFO] [stdout] ... | [INFO] [stdout] 17 | | println!("{:?}", freqs); [INFO] [stdout] 18 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/main.rs:1:9 [INFO] [stdout] | [INFO] [stdout] 1 | #![warn(missing_docs)] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.39s [INFO] running `Command { std: "docker" "inspect" "5e07669b0fe0aba815fa2d5a17bc0fc15e65a0e81833bfc4737afaaa63f47456", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5e07669b0fe0aba815fa2d5a17bc0fc15e65a0e81833bfc4737afaaa63f47456", kill_on_drop: false }` [INFO] [stdout] 5e07669b0fe0aba815fa2d5a17bc0fc15e65a0e81833bfc4737afaaa63f47456 [INFO] checking roidsaa/wordcount against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froidsaa%2Fwordcount" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/roidsaa/wordcount 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/roidsaa/wordcount [INFO] finished tweaking git repo https://github.com/roidsaa/wordcount [INFO] tweaked toml for git repo https://github.com/roidsaa/wordcount written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/roidsaa/wordcount 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 90d261d1f94052eaf16513719053b68aa0268951794554388a08815124b7d99e [INFO] running `Command { std: "docker" "start" "-a" "90d261d1f94052eaf16513719053b68aa0268951794554388a08815124b7d99e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "90d261d1f94052eaf16513719053b68aa0268951794554388a08815124b7d99e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "90d261d1f94052eaf16513719053b68aa0268951794554388a08815124b7d99e", kill_on_drop: false }` [INFO] [stdout] 90d261d1f94052eaf16513719053b68aa0268951794554388a08815124b7d99e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a657947857f3b6b91907d7809ec5a9c5b36dd006a42b267aa21496c225c0c15d [INFO] running `Command { std: "docker" "start" "-a" "a657947857f3b6b91907d7809ec5a9c5b36dd006a42b267aa21496c225c0c15d", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.2 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking regex-syntax v0.6.14 [INFO] [stderr] Checking aho-corasick v0.7.8 [INFO] [stderr] Checking regex v1.3.4 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.3.4/src/exec.rs:836:13 [INFO] [stdout] | [INFO] [stdout] 836 | / match dfa::Fsm::reverse( [INFO] [stdout] 837 | | &self.ro.dfa_reverse, [INFO] [stdout] 838 | | self.cache.value(), [INFO] [stdout] 839 | | false, [INFO] [stdout] ... | [INFO] [stdout] 850 | | Quit => return Some(Quit), [INFO] [stdout] 851 | | }; [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" "a657947857f3b6b91907d7809ec5a9c5b36dd006a42b267aa21496c225c0c15d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a657947857f3b6b91907d7809ec5a9c5b36dd006a42b267aa21496c225c0c15d", kill_on_drop: false }` [INFO] [stdout] a657947857f3b6b91907d7809ec5a9c5b36dd006a42b267aa21496c225c0c15d