[INFO] cloning repository https://github.com/tim-harding/autograder [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tim-harding/autograder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftim-harding%2Fautograder", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftim-harding%2Fautograder'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e049abb39eb8d297bd754e8c48bdb2e404662e04 [INFO] checking tim-harding/autograder against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftim-harding%2Fautograder" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tim-harding/autograder 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/tim-harding/autograder [INFO] finished tweaking git repo https://github.com/tim-harding/autograder [INFO] tweaked toml for git repo https://github.com/tim-harding/autograder written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/tim-harding/autograder 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 clap v3.0.10 [INFO] [stderr] Downloaded clap_derive v3.0.6 [INFO] [stderr] Downloaded os_str_bytes v6.0.0 [INFO] [stderr] Downloaded textwrap v0.14.2 [INFO] [stderr] Downloaded syn v1.0.77 [INFO] [stderr] Downloaded libc v0.2.103 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 08a62ca85034479627dcea11d504597477dd2304ad0f59b10ea15dce68158e6d [INFO] running `Command { std: "docker" "start" "-a" "08a62ca85034479627dcea11d504597477dd2304ad0f59b10ea15dce68158e6d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "08a62ca85034479627dcea11d504597477dd2304ad0f59b10ea15dce68158e6d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "08a62ca85034479627dcea11d504597477dd2304ad0f59b10ea15dce68158e6d", kill_on_drop: false }` [INFO] [stdout] 08a62ca85034479627dcea11d504597477dd2304ad0f59b10ea15dce68158e6d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 3a87cabb6299d165b402faec4a439f5e8891b2cdc7d8205e3ddfbbc359e5c562 [INFO] running `Command { std: "docker" "start" "-a" "3a87cabb6299d165b402faec4a439f5e8891b2cdc7d8205e3ddfbbc359e5c562", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.29 [INFO] [stderr] Compiling syn v1.0.77 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling libc v0.2.103 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling heck v0.4.0 [INFO] [stderr] Checking hashbrown v0.11.2 [INFO] [stderr] Compiling serde_json v1.0.68 [INFO] [stderr] Checking textwrap v0.14.2 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Checking strsim v0.10.0 [INFO] [stderr] Checking termcolor v1.1.2 [INFO] [stderr] Checking os_str_bytes v6.0.0 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking colored v2.0.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling thiserror-impl v1.0.29 [INFO] [stderr] Compiling clap_derive v3.0.6 [INFO] [stderr] Checking thiserror v1.0.29 [INFO] [stderr] Checking clap v3.0.10 [INFO] [stderr] Checking autograder v0.3.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.14s [INFO] running `Command { std: "docker" "inspect" "3a87cabb6299d165b402faec4a439f5e8891b2cdc7d8205e3ddfbbc359e5c562", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3a87cabb6299d165b402faec4a439f5e8891b2cdc7d8205e3ddfbbc359e5c562", kill_on_drop: false }` [INFO] [stdout] 3a87cabb6299d165b402faec4a439f5e8891b2cdc7d8205e3ddfbbc359e5c562 [INFO] checking tim-harding/autograder against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftim-harding%2Fautograder" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tim-harding/autograder 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/tim-harding/autograder [INFO] finished tweaking git repo https://github.com/tim-harding/autograder [INFO] tweaked toml for git repo https://github.com/tim-harding/autograder written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/tim-harding/autograder 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 522e4038fe49664dabfec64aa29cdd72db42738adb8370735481d6a6d83211ba [INFO] running `Command { std: "docker" "start" "-a" "522e4038fe49664dabfec64aa29cdd72db42738adb8370735481d6a6d83211ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "522e4038fe49664dabfec64aa29cdd72db42738adb8370735481d6a6d83211ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "522e4038fe49664dabfec64aa29cdd72db42738adb8370735481d6a6d83211ba", kill_on_drop: false }` [INFO] [stdout] 522e4038fe49664dabfec64aa29cdd72db42738adb8370735481d6a6d83211ba [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] a9a5aecb7a0c652fc2fe9702f5412e8750b7c7ad5cdd6f76f414e93ea93f3545 [INFO] running `Command { std: "docker" "start" "-a" "a9a5aecb7a0c652fc2fe9702f5412e8750b7c7ad5cdd6f76f414e93ea93f3545", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.29 [INFO] [stderr] Compiling syn v1.0.77 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling libc v0.2.103 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling serde_json v1.0.68 [INFO] [stderr] Checking hashbrown v0.11.2 [INFO] [stderr] Compiling heck v0.4.0 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Checking termcolor v1.1.2 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Checking textwrap v0.14.2 [INFO] [stderr] Checking strsim v0.10.0 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking os_str_bytes v6.0.0 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking colored v2.0.0 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.5.4/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" "a9a5aecb7a0c652fc2fe9702f5412e8750b7c7ad5cdd6f76f414e93ea93f3545", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a9a5aecb7a0c652fc2fe9702f5412e8750b7c7ad5cdd6f76f414e93ea93f3545", kill_on_drop: false }` [INFO] [stdout] a9a5aecb7a0c652fc2fe9702f5412e8750b7c7ad5cdd6f76f414e93ea93f3545