[INFO] fetching crate potatonet 0.4.2...
[INFO] documenting potatonet-0.4.2 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate potatonet 0.4.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate potatonet 0.4.2 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 potatonet 0.4.2
[INFO] finished tweaking crates.io crate potatonet 0.4.2
[INFO] tweaked toml for crates.io crate potatonet 0.4.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate potatonet 0.4.2 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 futures-executor v0.3.1
[INFO] [stderr]   Downloaded futures-macro v0.3.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.7
[INFO] [stderr]   Downloaded backtrace v0.3.41
[INFO] [stderr]   Downloaded async-std v1.4.0
[INFO] [stderr]   Downloaded nix v0.14.1
[INFO] [stderr]   Downloaded broadcaster v0.2.6
[INFO] [stderr]   Downloaded futures-channel v0.3.1
[INFO] [stderr]   Downloaded mortal v0.2.1
[INFO] [stderr]   Downloaded potatonet-bus v0.4.1
[INFO] [stderr]   Downloaded futures-util v0.3.1
[INFO] [stderr]   Downloaded futures-task v0.3.1
[INFO] [stderr]   Downloaded potatonet-codegen v0.4.1
[INFO] [stderr]   Downloaded smallstr v0.1.0
[INFO] [stderr]   Downloaded linefeed v0.6.0
[INFO] [stderr]   Downloaded async-task v1.2.0
[INFO] [stderr]   Downloaded futures v0.3.1
[INFO] [stderr]   Downloaded pin-project-lite v0.1.2
[INFO] [stderr]   Downloaded rmp-serde v0.14.0
[INFO] [stderr]   Downloaded thiserror-impl v1.0.9
[INFO] [stderr]   Downloaded terminfo v0.6.1
[INFO] [stderr]   Downloaded potatonet-common v0.4.2
[INFO] [stderr]   Downloaded potatonet-node v0.4.2
[INFO] [stderr]   Downloaded futures-sink v0.3.1
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.11
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.3
[INFO] [stderr]   Downloaded bytes v0.5.3
[INFO] [stderr]   Downloaded async-trait v0.1.22
[INFO] [stderr]   Downloaded potatonet-client v0.4.1
[INFO] [stderr]   Downloaded thiserror v1.0.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 413b6ffa89fceb03f32deaad5e3bb750037b8f3777eadba844cdf4705ffb855d
[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" "413b6ffa89fceb03f32deaad5e3bb750037b8f3777eadba844cdf4705ffb855d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "413b6ffa89fceb03f32deaad5e3bb750037b8f3777eadba844cdf4705ffb855d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "413b6ffa89fceb03f32deaad5e3bb750037b8f3777eadba844cdf4705ffb855d", kill_on_drop: false }`
[INFO] [stdout] 413b6ffa89fceb03f32deaad5e3bb750037b8f3777eadba844cdf4705ffb855d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] ce693c29bb09235d1cb1baa270f49ae547a9957f1e928df9b65fc183630fc4cb
[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" "ce693c29bb09235d1cb1baa270f49ae547a9957f1e928df9b65fc183630fc4cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]     Checking futures-core v0.3.1
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-io v0.3.1
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-sink v0.3.1
[INFO] [stderr]     Checking futures-task v0.3.1
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]     Checking pin-project-lite v0.1.2
[INFO] [stderr]     Checking once_cell v1.2.0
[INFO] [stderr]     Checking futures-timer v2.0.2
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]     Checking lock_api v0.3.3
[INFO] [stderr]     Checking async-task v1.2.0
[INFO] [stderr]     Checking bytes v0.5.3
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.0
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking kv-log-macro v1.0.4
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking rmp v0.8.9
[INFO] [stderr]     Checking rmp-serde v0.14.0
[INFO] [stderr]     Checking broadcaster v0.2.6
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.9
[INFO] [stderr]    Compiling async-trait v0.1.22
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling potatonet-codegen v0.4.1
[INFO] [stderr]     Checking async-std v1.4.0
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]     Checking thiserror v1.0.9
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking futures-executor v0.3.1
[INFO] [stderr]     Checking futures v0.3.1
[INFO] [stderr]     Checking potatonet-common v0.4.2
[INFO] [stderr]     Checking potatonet-client v0.4.1
[INFO] [stderr]     Checking potatonet-bus v0.4.1
[INFO] [stderr]     Checking potatonet-node v0.4.2
[INFO] [stderr]  Documenting potatonet v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: doc comment contains an invalid Rust code block
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/async-std-1.4.0/src/future/future/mod.rs:21:1
[INFO] [stdout]     |
[INFO] [stdout] 21  | / extension_trait! {
[INFO] [stdout] 22  | |     use std::pin::Pin;
[INFO] [stdout] 23  | |     use std::ops::{Deref, DerefMut};
[INFO] [stdout] 24  | |
[INFO] [stdout] ...   |
[INFO] [stdout] 429 | |     }
[INFO] [stdout] 430 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = help: mark blocks that do not contain Rust code as text: ```text
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: doc comment contains an invalid Rust code block
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/async-std-1.4.0/src/future/future/mod.rs:21:1
[INFO] [stdout]     |
[INFO] [stdout] 21  | / extension_trait! {
[INFO] [stdout] 22  | |     use std::pin::Pin;
[INFO] [stdout] 23  | |     use std::ops::{Deref, DerefMut};
[INFO] [stdout] 24  | |
[INFO] [stdout] ...   |
[INFO] [stdout] 429 | |     }
[INFO] [stdout] 430 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = help: mark blocks that do not contain Rust code as text: ```text
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.57s
[INFO] running `Command { std: "docker" "inspect" "ce693c29bb09235d1cb1baa270f49ae547a9957f1e928df9b65fc183630fc4cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce693c29bb09235d1cb1baa270f49ae547a9957f1e928df9b65fc183630fc4cb", kill_on_drop: false }`
[INFO] [stdout] ce693c29bb09235d1cb1baa270f49ae547a9957f1e928df9b65fc183630fc4cb