[INFO] fetching crate mxdns 0.2.2...
[INFO] documenting mxdns-0.2.2 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate mxdns 0.2.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mxdns 0.2.2 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 crates.io crate mxdns 0.2.2
[INFO] finished tweaking crates.io crate mxdns 0.2.2
[INFO] tweaked toml for crates.io crate mxdns 0.2.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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 trust-dns-proto v0.8.0
[INFO] [stderr]   Downloaded trust-dns v0.17.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stdout] 7ee31af9dc74bacf9350f9fd4042df9904a2d8dd136abe2ea241c73f2c51075c
[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" "7ee31af9dc74bacf9350f9fd4042df9904a2d8dd136abe2ea241c73f2c51075c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ee31af9dc74bacf9350f9fd4042df9904a2d8dd136abe2ea241c73f2c51075c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ee31af9dc74bacf9350f9fd4042df9904a2d8dd136abe2ea241c73f2c51075c", kill_on_drop: false }`
[INFO] [stdout] 7ee31af9dc74bacf9350f9fd4042df9904a2d8dd136abe2ea241c73f2c51075c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stdout] 1c085fae1de7ba68874af7b1b66171d2d422119536a9bc8c3575ee00dc4cfe2e
[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" "1c085fae1de7ba68874af7b1b66171d2d422119536a9bc8c3575ee00dc4cfe2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling data-encoding v2.3.0
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking nibble_vec v0.0.4
[INFO] [stderr]     Checking resolv-conf v0.6.3
[INFO] [stderr]    Compiling enum-as-inner v0.2.1
[INFO] [stderr]     Checking radix_trie v0.1.6
[INFO] [stderr]     Checking trust-dns-proto v0.8.0
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.8
[INFO] [stderr]     Checking data-encoding-macro v0.1.8
[INFO] [stderr]     Checking trust-dns v0.17.0
[INFO] [stderr]  Documenting mxdns v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.34s
[INFO] running `Command { std: "docker" "inspect" "1c085fae1de7ba68874af7b1b66171d2d422119536a9bc8c3575ee00dc4cfe2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c085fae1de7ba68874af7b1b66171d2d422119536a9bc8c3575ee00dc4cfe2e", kill_on_drop: false }`
[INFO] [stdout] 1c085fae1de7ba68874af7b1b66171d2d422119536a9bc8c3575ee00dc4cfe2e