[INFO] cloning repository https://github.com/clemarescx/mongo_query_client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/clemarescx/mongo_query_client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclemarescx%2Fmongo_query_client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclemarescx%2Fmongo_query_client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3496ee906a0be9120d2c8cf252446e7773bb5228
[INFO] documenting clemarescx/mongo_query_client against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclemarescx%2Fmongo_query_client" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/clemarescx/mongo_query_client on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/clemarescx/mongo_query_client
[INFO] finished tweaking git repo https://github.com/clemarescx/mongo_query_client
[INFO] tweaked toml for git repo https://github.com/clemarescx/mongo_query_client written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/clemarescx/mongo_query_client already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded data-encoding v2.1.1
[INFO] [stderr]   Downloaded separator v0.3.1
[INFO] [stderr]   Downloaded scan_fmt v0.1.3
[INFO] [stderr]   Downloaded try_from v0.2.2
[INFO] [stderr]   Downloaded sha-1 v0.7.0
[INFO] [stderr]   Downloaded bson v0.13.0
[INFO] [stderr]   Downloaded textnonce v0.6.4
[INFO] [stderr]   Downloaded mongodb v0.3.12
[INFO] [stderr]   Downloaded semver v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", 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] 3c11ab6309970e794a56db67a522adf3bb4a039689f73759ea4bfd6c54383220
[INFO] running `Command { std: "docker" "start" "-a" "3c11ab6309970e794a56db67a522adf3bb4a039689f73759ea4bfd6c54383220", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c11ab6309970e794a56db67a522adf3bb4a039689f73759ea4bfd6c54383220", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c11ab6309970e794a56db67a522adf3bb4a039689f73759ea4bfd6c54383220", kill_on_drop: false }`
[INFO] [stdout] 3c11ab6309970e794a56db67a522adf3bb4a039689f73759ea4bfd6c54383220
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "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] 745ce8f1e89ccd40655679a2ec089e76f524ca456f008d48e2f0d2d717a05e9d
[INFO] running `Command { std: "docker" "start" "-a" "745ce8f1e89ccd40655679a2ec089e76f524ca456f008d48e2f0d2d717a05e9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling serde v1.0.82
[INFO] [stderr]     Checking md5 v0.3.8
[INFO] [stderr]     Checking try_from v0.2.2
[INFO] [stderr]     Checking data-encoding v2.1.1
[INFO] [stderr]     Checking separator v0.3.1
[INFO] [stderr]     Checking semver v0.8.0
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]     Checking time v0.1.41
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking md-5 v0.7.0
[INFO] [stderr]     Checking sha-1 v0.7.0
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking pbkdf2 v0.2.3
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking scan_fmt v0.1.3
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]     Checking bson v0.13.0
[INFO] [stderr]     Checking textnonce v0.6.4
[INFO] [stderr]     Checking mongodb v0.3.12
[INFO] [stderr]  Documenting mongo_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.20s
[INFO] running `Command { std: "docker" "inspect" "745ce8f1e89ccd40655679a2ec089e76f524ca456f008d48e2f0d2d717a05e9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "745ce8f1e89ccd40655679a2ec089e76f524ca456f008d48e2f0d2d717a05e9d", kill_on_drop: false }`
[INFO] [stdout] 745ce8f1e89ccd40655679a2ec089e76f524ca456f008d48e2f0d2d717a05e9d