[INFO] updating cached repository https://github.com/ThatsGobbles/taggu-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5a400888540da38362bbec2a1a450916aea5024d [INFO] documenting ThatsGobbles/taggu-rust against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThatsGobbles%2Ftaggu-rust" "/workspace/builds/worker-9/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ThatsGobbles/taggu-rust on toolchain 394e1b40d264aa6928811919c1124fa248e7d802 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ThatsGobbles/taggu-rust [INFO] finished tweaking git repo https://github.com/ThatsGobbles/taggu-rust [INFO] tweaked toml for git repo https://github.com/ThatsGobbles/taggu-rust written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/ThatsGobbles/taggu-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0a550fe5b39611f847ce63da8f9939bfdb1933de4e94bdd6fe39c3dbc09c8335 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "0a550fe5b39611f847ce63da8f9939bfdb1933de4e94bdd6fe39c3dbc09c8335", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0a550fe5b39611f847ce63da8f9939bfdb1933de4e94bdd6fe39c3dbc09c8335", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0a550fe5b39611f847ce63da8f9939bfdb1933de4e94bdd6fe39c3dbc09c8335", kill_on_drop: false }` [INFO] [stdout] 0a550fe5b39611f847ce63da8f9939bfdb1933de4e94bdd6fe39c3dbc09c8335 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ff876d7f5e7eca200d89787663e60bb952461c6fcdc0ca71936a42b0b460a1b8 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "ff876d7f5e7eca200d89787663e60bb952461c6fcdc0ca71936a42b0b460a1b8", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.34 [INFO] [stderr] Compiling cc v1.0.3 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking lazy_static v1.0.0 [INFO] [stderr] Checking rustc-demangle v0.1.5 [INFO] [stderr] Checking cfg-if v0.1.2 [INFO] [stderr] Checking utf8-ranges v1.0.0 [INFO] [stderr] Checking regex-syntax v0.4.1 [INFO] [stderr] Checking log v0.3.8 [INFO] [stderr] Checking linked-hash-map v0.5.0 [INFO] [stderr] Checking maplit v1.0.0 [INFO] [stderr] Checking glob v0.2.11 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking yaml-rust v0.4.0 [INFO] [stderr] Checking thread_local v0.3.5 [INFO] [stderr] Checking memchr v2.0.1 [INFO] [stderr] Checking rand v0.3.18 [INFO] [stderr] Checking aho-corasick v0.6.4 [INFO] [stderr] Compiling backtrace-sys v0.1.16 [INFO] [stderr] Checking regex v0.2.3 [INFO] [stderr] Checking tempdir v0.3.5 [INFO] [stderr] Checking env_logger v0.4.3 [INFO] [stderr] Checking backtrace v0.3.4 [INFO] [stderr] Checking error-chain v0.12.0 [INFO] [stderr] Documenting taggu v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0720]: cannot resolve opaque type [INFO] [stdout] --> src/metadata/mod.rs:149:63 [INFO] [stdout] | [INFO] [stdout] 149 | pub fn iter_over<'a>(&'a self, mis: MappingIterScheme) -> impl Iterator { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ recursive opaque type [INFO] [stdout] ... [INFO] [stdout] 186 | GenConverter::gen_to_iter(closure) [INFO] [stdout] | ---------------------------------- returning here with type `impl std::iter::Iterator` [INFO] [stdout] | [INFO] [stdout] ::: src/generator.rs:6:36 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn gen_to_iter(g: G) -> impl Iterator [INFO] [stdout] | ------------------------------ returning this opaque type `impl std::iter::Iterator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0720`. [INFO] [stdout] [INFO] [stderr] error: Could not document `taggu`. [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustdoc --crate-type bin --crate-name taggu src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-14871d9b2a5e3ada.rmeta --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-480e71e8b94aac49.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-c02c8936fa50b8fc.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-cdd1072f1e80c9b1.rmeta --extern maplit=/opt/rustwide/target/debug/deps/libmaplit-a818715b9fe1dbf9.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-ed485fe89ebc700b.rmeta --extern tempdir=/opt/rustwide/target/debug/deps/libtempdir-b982c363fae2b213.rmeta --extern yaml_rust=/opt/rustwide/target/debug/deps/libyaml_rust-4dcf0005c780aeba.rmeta --cap-lints=forbid` (exit code: 1) [INFO] running `Command { std: "docker" "inspect" "ff876d7f5e7eca200d89787663e60bb952461c6fcdc0ca71936a42b0b460a1b8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ff876d7f5e7eca200d89787663e60bb952461c6fcdc0ca71936a42b0b460a1b8", kill_on_drop: false }` [INFO] [stdout] ff876d7f5e7eca200d89787663e60bb952461c6fcdc0ca71936a42b0b460a1b8