[INFO] cloning repository https://github.com/johnstonskj/rust-xml_dom_xpath
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/johnstonskj/rust-xml_dom_xpath" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnstonskj%2Frust-xml_dom_xpath", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnstonskj%2Frust-xml_dom_xpath'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8a513048ddc27703b9210183d2dfe88f342de484
[INFO] documenting johnstonskj/rust-xml_dom_xpath against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnstonskj%2Frust-xml_dom_xpath" "/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/johnstonskj/rust-xml_dom_xpath 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/johnstonskj/rust-xml_dom_xpath
[INFO] finished tweaking git repo https://github.com/johnstonskj/rust-xml_dom_xpath
[INFO] tweaked toml for git repo https://github.com/johnstonskj/rust-xml_dom_xpath written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/johnstonskj/rust-xml_dom_xpath 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] [stderr]     Blocking waiting for file lock on package cache
[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] e5502c95945413e6965c60cf333638dcd6c610094831b97f9d6a9f03b53104b5
[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" "e5502c95945413e6965c60cf333638dcd6c610094831b97f9d6a9f03b53104b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5502c95945413e6965c60cf333638dcd6c610094831b97f9d6a9f03b53104b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5502c95945413e6965c60cf333638dcd6c610094831b97f9d6a9f03b53104b5", kill_on_drop: false }`
[INFO] [stdout] e5502c95945413e6965c60cf333638dcd6c610094831b97f9d6a9f03b53104b5
[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] 90eac5ab1daaf89eb351f6a9fea729e1ddc8ce45e58b8af3f6b31a21f6f1fb40
[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" "90eac5ab1daaf89eb351f6a9fea729e1ddc8ce45e58b8af3f6b31a21f6f1fb40", 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]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking quick-xml v0.17.2
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking xml_dom v0.2.2
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]  Documenting xml_dom_xpath v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.54s
[INFO] running `Command { std: "docker" "inspect" "90eac5ab1daaf89eb351f6a9fea729e1ddc8ce45e58b8af3f6b31a21f6f1fb40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90eac5ab1daaf89eb351f6a9fea729e1ddc8ce45e58b8af3f6b31a21f6f1fb40", kill_on_drop: false }`
[INFO] [stdout] 90eac5ab1daaf89eb351f6a9fea729e1ddc8ce45e58b8af3f6b31a21f6f1fb40