[INFO] cloning repository https://github.com/sudhakar-mamillapalli/codingtest [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sudhakar-mamillapalli/codingtest" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsudhakar-mamillapalli%2Fcodingtest", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsudhakar-mamillapalli%2Fcodingtest'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 608ecda5d72678ca8e723ac90c32bc6067835327 [INFO] checking sudhakar-mamillapalli/codingtest against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsudhakar-mamillapalli%2Fcodingtest" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sudhakar-mamillapalli/codingtest 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/sudhakar-mamillapalli/codingtest [INFO] finished tweaking git repo https://github.com/sudhakar-mamillapalli/codingtest [INFO] tweaked toml for git repo https://github.com/sudhakar-mamillapalli/codingtest written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/sudhakar-mamillapalli/codingtest 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] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded unicode-ident v1.0.2 [INFO] [stderr] Downloaded num_cpus v1.13.1 [INFO] [stderr] Downloaded termcolor v1.1.3 [INFO] [stderr] Downloaded quote v1.0.20 [INFO] [stderr] Downloaded proc-macro2 v1.0.40 [INFO] [stderr] Downloaded serde_derive v1.0.139 [INFO] [stderr] Downloaded ryu v1.0.10 [INFO] [stderr] Downloaded memchr v2.5.0 [INFO] [stderr] Downloaded aho-corasick v0.7.18 [INFO] [stderr] Downloaded regex v1.6.0 [INFO] [stderr] Downloaded bstr v0.2.17 [INFO] [stderr] Downloaded libc v0.2.126 [INFO] [stderr] Downloaded regex-syntax v0.6.27 [INFO] [stderr] Downloaded csv v1.1.6 [INFO] [stderr] Downloaded syn v1.0.98 [INFO] [stderr] Downloaded env_logger v0.9.0 [INFO] [stderr] Downloaded log v0.4.17 [INFO] [stderr] Downloaded serde v1.0.139 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b7ac924bd233a8396dbe96c34a207244c9b04c1ca51955f2c69c7232486701dd [INFO] running `Command { std: "docker" "start" "-a" "b7ac924bd233a8396dbe96c34a207244c9b04c1ca51955f2c69c7232486701dd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b7ac924bd233a8396dbe96c34a207244c9b04c1ca51955f2c69c7232486701dd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b7ac924bd233a8396dbe96c34a207244c9b04c1ca51955f2c69c7232486701dd", kill_on_drop: false }` [INFO] [stdout] b7ac924bd233a8396dbe96c34a207244c9b04c1ca51955f2c69c7232486701dd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] ecc4c7ed7824f65b4b1abb772518cd01dbc3b0699a82f48d5f57f3cabb1db549 [INFO] running `Command { std: "docker" "start" "-a" "ecc4c7ed7824f65b4b1abb772518cd01dbc3b0699a82f48d5f57f3cabb1db549", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.40 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling quote v1.0.20 [INFO] [stderr] Compiling unicode-ident v1.0.2 [INFO] [stderr] Compiling syn v1.0.98 [INFO] [stderr] Compiling serde_derive v1.0.139 [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling serde v1.0.139 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking regex-syntax v0.6.27 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] Checking ryu v1.0.10 [INFO] [stderr] Checking humantime v2.1.0 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking regex v1.6.0 [INFO] [stderr] Checking env_logger v0.9.0 [INFO] [stderr] Checking bstr v0.2.17 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking codingtest v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.71s [INFO] running `Command { std: "docker" "inspect" "ecc4c7ed7824f65b4b1abb772518cd01dbc3b0699a82f48d5f57f3cabb1db549", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ecc4c7ed7824f65b4b1abb772518cd01dbc3b0699a82f48d5f57f3cabb1db549", kill_on_drop: false }` [INFO] [stdout] ecc4c7ed7824f65b4b1abb772518cd01dbc3b0699a82f48d5f57f3cabb1db549 [INFO] checking sudhakar-mamillapalli/codingtest against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsudhakar-mamillapalli%2Fcodingtest" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sudhakar-mamillapalli/codingtest 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/sudhakar-mamillapalli/codingtest [INFO] finished tweaking git repo https://github.com/sudhakar-mamillapalli/codingtest [INFO] tweaked toml for git repo https://github.com/sudhakar-mamillapalli/codingtest written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/sudhakar-mamillapalli/codingtest 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 3aa24bf0f1a34c50ffbbc8e2762d5be37426ef444a88d05d795d185cbc0b492a [INFO] running `Command { std: "docker" "start" "-a" "3aa24bf0f1a34c50ffbbc8e2762d5be37426ef444a88d05d795d185cbc0b492a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3aa24bf0f1a34c50ffbbc8e2762d5be37426ef444a88d05d795d185cbc0b492a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3aa24bf0f1a34c50ffbbc8e2762d5be37426ef444a88d05d795d185cbc0b492a", kill_on_drop: false }` [INFO] [stdout] 3aa24bf0f1a34c50ffbbc8e2762d5be37426ef444a88d05d795d185cbc0b492a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 14d70d5482b46b339ed1c3feec25691e5c00f5a84ed4b0290df57012730f2dd9 [INFO] running `Command { std: "docker" "start" "-a" "14d70d5482b46b339ed1c3feec25691e5c00f5a84ed4b0290df57012730f2dd9", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.40 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling quote v1.0.20 [INFO] [stderr] Compiling unicode-ident v1.0.2 [INFO] [stderr] Compiling syn v1.0.98 [INFO] [stderr] Compiling serde_derive v1.0.139 [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling serde v1.0.139 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Checking regex-syntax v0.6.27 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] Checking ryu v1.0.10 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Checking humantime v2.1.0 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking regex v1.6.0 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.6.0/src/exec.rs:848:13 [INFO] [stdout] | [INFO] [stdout] 848 | / match dfa::Fsm::reverse( [INFO] [stdout] 849 | | &self.ro.dfa_reverse, [INFO] [stdout] 850 | | self.cache.value(), [INFO] [stdout] 851 | | false, [INFO] [stdout] ... | [INFO] [stdout] 862 | | Quit => return Some(Quit), [INFO] [stdout] 863 | | }; [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] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "14d70d5482b46b339ed1c3feec25691e5c00f5a84ed4b0290df57012730f2dd9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "14d70d5482b46b339ed1c3feec25691e5c00f5a84ed4b0290df57012730f2dd9", kill_on_drop: false }` [INFO] [stdout] 14d70d5482b46b339ed1c3feec25691e5c00f5a84ed4b0290df57012730f2dd9