[INFO] cloning repository https://github.com/joeclark-phd/markov_namegen [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joeclark-phd/markov_namegen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoeclark-phd%2Fmarkov_namegen", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoeclark-phd%2Fmarkov_namegen'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fd5d4ea5802caab7afaba0c3643cbab67f13eb9f [INFO] checking joeclark-phd/markov_namegen against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoeclark-phd%2Fmarkov_namegen" "/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/joeclark-phd/markov_namegen 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/joeclark-phd/markov_namegen [INFO] finished tweaking git repo https://github.com/joeclark-phd/markov_namegen [INFO] tweaked toml for git repo https://github.com/joeclark-phd/markov_namegen written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/joeclark-phd/markov_namegen 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] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded multimarkov v0.4.0 [INFO] [stderr] Downloaded is-vowel v0.1.0 [INFO] [stderr] Downloaded aho-corasick v1.0.1 [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] c6e6e836140d7612015f0ac665c3d45ec75fb1c9966b0f8a01abf397232a5184 [INFO] running `Command { std: "docker" "start" "-a" "c6e6e836140d7612015f0ac665c3d45ec75fb1c9966b0f8a01abf397232a5184", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c6e6e836140d7612015f0ac665c3d45ec75fb1c9966b0f8a01abf397232a5184", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c6e6e836140d7612015f0ac665c3d45ec75fb1c9966b0f8a01abf397232a5184", kill_on_drop: false }` [INFO] [stdout] c6e6e836140d7612015f0ac665c3d45ec75fb1c9966b0f8a01abf397232a5184 [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] 26fde02765d7381876458e5b48ebce5b6a4ccdf4dbf9b84726b9587891a5e120 [INFO] running `Command { std: "docker" "start" "-a" "26fde02765d7381876458e5b48ebce5b6a4ccdf4dbf9b84726b9587891a5e120", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.151 [INFO] [stderr] Checking regex-syntax v0.7.1 [INFO] [stderr] Checking aho-corasick v1.0.1 [INFO] [stderr] Checking is-vowel v0.1.0 [INFO] [stderr] Checking getrandom v0.2.11 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking regex v1.8.1 [INFO] [stderr] Checking multimarkov v0.4.0 [INFO] [stderr] Checking markov_namegen v0.3.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `generator` [INFO] [stdout] --> src/characterchain/builder.rs:97:13 [INFO] [stdout] | [INFO] [stdout] 97 | let generator = CharacterChainGenerator::builder().with_order(2).with_prior(0.007).with_pattern("foo").build(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generator` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `generator` [INFO] [stdout] --> src/characterchain/builder.rs:103:13 [INFO] [stdout] | [INFO] [stdout] 103 | let generator = CharacterChainGenerator::builder().with_order(0).build(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `generator` [INFO] [stdout] --> src/characterchain/builder.rs:111:13 [INFO] [stdout] | [INFO] [stdout] 111 | let generator = CharacterChainGenerator::builder().train(inputs).build(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `generator` [INFO] [stdout] --> src/clusterchain/builder.rs:157:13 [INFO] [stdout] | [INFO] [stdout] 157 | let generator = ClusterChainGenerator::builder().with_order(2).with_prior(0.007).with_pattern("foo").build(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `generator` [INFO] [stdout] --> src/clusterchain/builder.rs:163:13 [INFO] [stdout] | [INFO] [stdout] 163 | let generator = ClusterChainGenerator::builder().with_order(0).build(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `generator` [INFO] [stdout] --> src/clusterchain/builder.rs:170:13 [INFO] [stdout] | [INFO] [stdout] 170 | let generator = ClusterChainGenerator::builder().train(inputs).build(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `without_prior` is never used [INFO] [stdout] --> src/characterchain/builder.rs:61:12 [INFO] [stdout] | [INFO] [stdout] 13 | impl<'a> CharacterChainGeneratorBuilder<'a> { [INFO] [stdout] | ------------------------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 61 | pub fn without_prior(mut self) -> Self { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `generator` [INFO] [stdout] --> src/characterchain/builder.rs:97:13 [INFO] [stdout] | [INFO] [stdout] 97 | let generator = CharacterChainGenerator::builder().with_order(2).with_prior(0.007).with_pattern("foo").build(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generator` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `generator` [INFO] [stdout] --> src/characterchain/builder.rs:103:13 [INFO] [stdout] | [INFO] [stdout] 103 | let generator = CharacterChainGenerator::builder().with_order(0).build(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `generator` [INFO] [stdout] --> src/characterchain/builder.rs:111:13 [INFO] [stdout] | [INFO] [stdout] 111 | let generator = CharacterChainGenerator::builder().train(inputs).build(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `without_prior` is never used [INFO] [stdout] --> src/characterchain/builder.rs:61:12 [INFO] [stdout] | [INFO] [stdout] 13 | impl<'a> CharacterChainGeneratorBuilder<'a> { [INFO] [stdout] | ------------------------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 61 | pub fn without_prior(mut self) -> Self { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.17s [INFO] running `Command { std: "docker" "inspect" "26fde02765d7381876458e5b48ebce5b6a4ccdf4dbf9b84726b9587891a5e120", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "26fde02765d7381876458e5b48ebce5b6a4ccdf4dbf9b84726b9587891a5e120", kill_on_drop: false }` [INFO] [stdout] 26fde02765d7381876458e5b48ebce5b6a4ccdf4dbf9b84726b9587891a5e120 [INFO] checking joeclark-phd/markov_namegen against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoeclark-phd%2Fmarkov_namegen" "/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/joeclark-phd/markov_namegen 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/joeclark-phd/markov_namegen [INFO] finished tweaking git repo https://github.com/joeclark-phd/markov_namegen [INFO] tweaked toml for git repo https://github.com/joeclark-phd/markov_namegen written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/joeclark-phd/markov_namegen 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] 0878e0da12630c336aaf6ff299b8608885307ab33548ada98ffbf5545425cbcd [INFO] running `Command { std: "docker" "start" "-a" "0878e0da12630c336aaf6ff299b8608885307ab33548ada98ffbf5545425cbcd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0878e0da12630c336aaf6ff299b8608885307ab33548ada98ffbf5545425cbcd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0878e0da12630c336aaf6ff299b8608885307ab33548ada98ffbf5545425cbcd", kill_on_drop: false }` [INFO] [stdout] 0878e0da12630c336aaf6ff299b8608885307ab33548ada98ffbf5545425cbcd [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] 381df980565c5016d3f04db2936e629620a958501d996621fe4032f3ee4e9ba5 [INFO] running `Command { std: "docker" "start" "-a" "381df980565c5016d3f04db2936e629620a958501d996621fe4032f3ee4e9ba5", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.151 [INFO] [stderr] Checking regex-syntax v0.7.1 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Checking unicode-normalization v0.1.22 [INFO] [stderr] Checking aho-corasick v1.0.1 [INFO] [stderr] Checking is-vowel v0.1.0 [INFO] [stderr] Checking getrandom v0.2.11 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking regex v1.8.1 [INFO] [stderr] Checking multimarkov v0.4.0 [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" "381df980565c5016d3f04db2936e629620a958501d996621fe4032f3ee4e9ba5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "381df980565c5016d3f04db2936e629620a958501d996621fe4032f3ee4e9ba5", kill_on_drop: false }` [INFO] [stdout] 381df980565c5016d3f04db2936e629620a958501d996621fe4032f3ee4e9ba5