[INFO] fetching crate craftping 0.3.0...
[INFO] documenting craftping-0.3.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate craftping 0.3.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate craftping 0.3.0 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate craftping 0.3.0
[INFO] finished tweaking crates.io crate craftping 0.3.0
[INFO] tweaked toml for crates.io crate craftping 0.3.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate craftping 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", 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] 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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48b040e1efc0160e754f74fb7d8de0534629802fe127ee551e9da8795636c03a
[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" "48b040e1efc0160e754f74fb7d8de0534629802fe127ee551e9da8795636c03a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48b040e1efc0160e754f74fb7d8de0534629802fe127ee551e9da8795636c03a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48b040e1efc0160e754f74fb7d8de0534629802fe127ee551e9da8795636c03a", kill_on_drop: false }`
[INFO] [stdout] 48b040e1efc0160e754f74fb7d8de0534629802fe127ee551e9da8795636c03a
[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" "+1.61.0" "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] 01257271356adf04c8db621a7f96aa1692b0c143475f127c61b4bc42bd4bf3f5
[INFO] running `Command { std: "docker" "start" "-a" "01257271356adf04c8db621a7f96aa1692b0c143475f127c61b4bc42bd4bf3f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]  Documenting craftping v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `self::tokio::ping`
[INFO] [stdout]  --> src/lib.rs:8:67
[INFO] [stdout]   |
[INFO] [stdout] 8 | //! - `async-tokio`: Enables asynchronous, `tokio`-based [`ping`](crate::tokio::ping) function.
[INFO] [stdout]   |                                                                   ^^^^^^^^^^^^^^^^^^ no item named `tokio` in module `craftping`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `self::futures::ping`
[INFO] [stdout]  --> src/lib.rs:9:71
[INFO] [stdout]   |
[INFO] [stdout] 9 | //! - `async-futures`: Enables asynchronous, `futures`-based [`ping`](crate::futures::ping) function.
[INFO] [stdout]   |                                                                       ^^^^^^^^^^^^^^^^^^^^ no item named `futures` in module `craftping`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `tokio`
[INFO] [stdout]  --> src/sync.rs:4:72
[INFO] [stdout]   |
[INFO] [stdout] 4 | //! If you want to send ping in an asynchronous context, see [`tokio`](tokio) or [`futures`](futures) module.
[INFO] [stdout]   |                                                                        ^^^^^ no item named `tokio` in scope
[INFO] [stdout]   |
[INFO] [stdout]   = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `futures`
[INFO] [stdout]  --> src/sync.rs:4:94
[INFO] [stdout]   |
[INFO] [stdout] 4 | //! If you want to send ping in an asynchronous context, see [`tokio`](tokio) or [`futures`](futures) module.
[INFO] [stdout]   |                                                                                              ^^^^^^^ no item named `futures` in scope
[INFO] [stdout]   |
[INFO] [stdout]   = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.84s
[INFO] running `Command { std: "docker" "inspect" "01257271356adf04c8db621a7f96aa1692b0c143475f127c61b4bc42bd4bf3f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01257271356adf04c8db621a7f96aa1692b0c143475f127c61b4bc42bd4bf3f5", kill_on_drop: false }`
[INFO] [stdout] 01257271356adf04c8db621a7f96aa1692b0c143475f127c61b4bc42bd4bf3f5
[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" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--all-features" "-Z" "unstable-options" "--config" "build.rustflags=[\"--cfg\", \"docsrs\"]" "--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] b882d079bef10b47dc9b7eba19d07e3b5dd65a77066824e557bee7263200762d
[INFO] running `Command { std: "docker" "start" "-a" "b882d079bef10b47dc9b7eba19d07e3b5dd65a77066824e557bee7263200762d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking futures-io v0.3.17
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling tokio v1.12.0
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.7
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking futures-executor v0.3.17
[INFO] [stderr]     Checking futures v0.3.17
[INFO] [stderr]  Documenting craftping v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "b882d079bef10b47dc9b7eba19d07e3b5dd65a77066824e557bee7263200762d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b882d079bef10b47dc9b7eba19d07e3b5dd65a77066824e557bee7263200762d", kill_on_drop: false }`
[INFO] [stdout] b882d079bef10b47dc9b7eba19d07e3b5dd65a77066824e557bee7263200762d