[INFO] fetching crate tower-grpc 0.1.1...
[INFO] documenting tower-grpc-0.1.1 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate tower-grpc 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tower-grpc 0.1.1 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tower-grpc 0.1.1
[INFO] finished tweaking crates.io crate tower-grpc 0.1.1
[INFO] tweaked toml for crates.io crate tower-grpc 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tower-hyper v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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-2020-10-09" "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] c0c988ba5080166141c827b586499525c931113b9d5baae01704f4808ba4f933
[INFO] running `Command { std: "docker" "start" "-a" "c0c988ba5080166141c827b586499525c931113b9d5baae01704f4808ba4f933", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0c988ba5080166141c827b586499525c931113b9d5baae01704f4808ba4f933", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0c988ba5080166141c827b586499525c931113b9d5baae01704f4808ba4f933", kill_on_drop: false }`
[INFO] [stdout] c0c988ba5080166141c827b586499525c931113b9d5baae01704f4808ba4f933
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6af293fc742a0e568e6eb9f55dc6958049c4674e4bbaf4d3ad1ceb2224eec3de
[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" "6af293fc742a0e568e6eb9f55dc6958049c4674e4bbaf4d3ad1ceb2224eec3de", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]     Checking tower-util v0.1.0
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]    Compiling prost-derive v0.5.0
[INFO] [stderr]     Checking prost v0.5.0
[INFO] [stderr]  Documenting tower-grpc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `MetadataMap`
[INFO] [stdout]   --> src/metadata/key.rs:13:35
[INFO] [stdout]    |
[INFO] [stdout] 13 | /// `MetadataKey` is used as the [`MetadataMap`] key.
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^ the module `key` contains no item named `MetadataMap`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(broken_intra_doc_links)]` on by default
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `MetadataMap`
[INFO] [stdout]   --> src/metadata/value.rs:15:37
[INFO] [stdout]    |
[INFO] [stdout] 15 | /// `MetadataValue` is used as the [`MetadataMap`] value.
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^ the module `value` contains no item named `MetadataMap`
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `MetadataMap`
[INFO] [stdout]   --> src/metadata/key.rs:13:35
[INFO] [stdout]    |
[INFO] [stdout] 13 | /// `MetadataKey` is used as the [`MetadataMap`] key.
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^ the module `key` contains no item named `MetadataMap`
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.84s
[INFO] running `Command { std: "docker" "inspect" "6af293fc742a0e568e6eb9f55dc6958049c4674e4bbaf4d3ad1ceb2224eec3de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6af293fc742a0e568e6eb9f55dc6958049c4674e4bbaf4d3ad1ceb2224eec3de", kill_on_drop: false }`
[INFO] [stdout] 6af293fc742a0e568e6eb9f55dc6958049c4674e4bbaf4d3ad1ceb2224eec3de
