[INFO] cloning repository https://github.com/hjiayz/cpp_regex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hjiayz/cpp_regex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhjiayz%2Fcpp_regex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhjiayz%2Fcpp_regex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 10acf6936b82a78b1566fcc6cc196b2c856dbd7c
[INFO] documenting hjiayz/cpp_regex against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhjiayz%2Fcpp_regex" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hjiayz/cpp_regex on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hjiayz/cpp_regex
[INFO] finished tweaking git repo https://github.com/hjiayz/cpp_regex
[INFO] tweaked toml for git repo https://github.com/hjiayz/cpp_regex written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/hjiayz/cpp_regex already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3146958a3e2577b78c81b48b8b15a7868e478cee6d2b538f3a5df2aaa084f2af
[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" "3146958a3e2577b78c81b48b8b15a7868e478cee6d2b538f3a5df2aaa084f2af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3146958a3e2577b78c81b48b8b15a7868e478cee6d2b538f3a5df2aaa084f2af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3146958a3e2577b78c81b48b8b15a7868e478cee6d2b538f3a5df2aaa084f2af", kill_on_drop: false }`
[INFO] [stdout] 3146958a3e2577b78c81b48b8b15a7868e478cee6d2b538f3a5df2aaa084f2af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ba7c44ffe93c7729a1f049b07ddc42601abdad8598d4e519b7f85740cda497e9
[INFO] running `Command { std: "docker" "start" "-a" "ba7c44ffe93c7729a1f049b07ddc42601abdad8598d4e519b7f85740cda497e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling scratch v1.0.0
[INFO] [stderr]    Compiling cxxbridge-flags v1.0.55
[INFO] [stderr]    Compiling codespan-reporting v0.11.1
[INFO] [stderr]    Compiling link-cplusplus v1.0.5
[INFO] [stderr]    Compiling cxx v1.0.55
[INFO] [stderr]    Compiling cxx-build v1.0.55
[INFO] [stderr]    Compiling cxxbridge-macro v1.0.55
[INFO] [stderr]    Compiling cpp_regexp v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting cpp_regexp v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.90s
[INFO] running `Command { std: "docker" "inspect" "ba7c44ffe93c7729a1f049b07ddc42601abdad8598d4e519b7f85740cda497e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba7c44ffe93c7729a1f049b07ddc42601abdad8598d4e519b7f85740cda497e9", kill_on_drop: false }`
[INFO] [stdout] ba7c44ffe93c7729a1f049b07ddc42601abdad8598d4e519b7f85740cda497e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e713f2e5a56f7de69709953924882ae7177a389212f8dbf2bb5cbe0930db083d
[INFO] running `Command { std: "docker" "start" "-a" "e713f2e5a56f7de69709953924882ae7177a389212f8dbf2bb5cbe0930db083d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling scratch v1.0.0
[INFO] [stderr]    Compiling cxxbridge-flags v1.0.55
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling codespan-reporting v0.11.1
[INFO] [stderr]    Compiling link-cplusplus v1.0.5
[INFO] [stderr]    Compiling cxx v1.0.55
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling cxx-build v1.0.55
[INFO] [stderr]    Compiling cxxbridge-macro v1.0.55
[INFO] [stderr]    Compiling cpp_regexp v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting cpp_regexp v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.56s
[INFO] running `Command { std: "docker" "inspect" "e713f2e5a56f7de69709953924882ae7177a389212f8dbf2bb5cbe0930db083d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e713f2e5a56f7de69709953924882ae7177a389212f8dbf2bb5cbe0930db083d", kill_on_drop: false }`
[INFO] [stdout] e713f2e5a56f7de69709953924882ae7177a389212f8dbf2bb5cbe0930db083d