[INFO] fetching crate cargo-gui 0.3.1...
[INFO] documenting cargo-gui-0.3.1 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate cargo-gui 0.3.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate cargo-gui 0.3.1 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-gui 0.3.1
[INFO] finished tweaking crates.io crate cargo-gui 0.3.1
[INFO] tweaked toml for crates.io crate cargo-gui 0.3.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate cargo-gui 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44de4243f5c43e6973bc5af430b445bbcc425562fc91ab9e56e9f13ba67f5809
[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" "44de4243f5c43e6973bc5af430b445bbcc425562fc91ab9e56e9f13ba67f5809", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44de4243f5c43e6973bc5af430b445bbcc425562fc91ab9e56e9f13ba67f5809", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44de4243f5c43e6973bc5af430b445bbcc425562fc91ab9e56e9f13ba67f5809", kill_on_drop: false }`
[INFO] [stdout] 44de4243f5c43e6973bc5af430b445bbcc425562fc91ab9e56e9f13ba67f5809
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5b9a074666d528a8fca57a68e441577453d6a64175704747bd630341addd3c4
[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" "e5b9a074666d528a8fca57a68e441577453d6a64175704747bd630341addd3c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-sink v0.3.1
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-io v0.3.1
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]     Checking futures-timer v2.0.2
[INFO] [stderr]     Checking pin-project-lite v0.1.1
[INFO] [stderr]     Checking once_cell v1.2.0
[INFO] [stderr]     Checking data-encoding v2.1.2
[INFO] [stderr]     Checking route-recognizer v0.1.13
[INFO] [stderr]     Checking bytes v0.5.2
[INFO] [stderr]    Compiling cargo-gui v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking async-macros v2.0.0
[INFO] [stderr]     Checking async-task v1.0.0
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking mime_guess v2.0.1
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[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 futures-fs v0.0.5
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking kv-log-macro v1.0.4
[INFO] [stderr]     Checking tokio-threadpool v0.1.16
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking tokio-reactor v0.1.10
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking broadcaster v0.2.6
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]     Checking async-std v1.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.1
[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 http-service v0.4.0
[INFO] [stderr]     Checking http-service-hyper v0.4.1
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking serde_qs v0.5.1
[INFO] [stderr]     Checking tide v0.4.0
[INFO] [stderr]     Checking tide-naive-static-files v2.0.1
[INFO] [stderr]  Documenting cargo-gui v0.3.1 (/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-1.2.0/src/future/future/mod.rs:20:1
[INFO] [stdout]     |
[INFO] [stdout] 20  | / extension_trait! {
[INFO] [stdout] 21  | |     use std::pin::Pin;
[INFO] [stdout] 22  | |     use std::ops::{Deref, DerefMut};
[INFO] [stdout] 23  | |
[INFO] [stdout] ...   |
[INFO] [stdout] 394 | |     }
[INFO] [stdout] 395 | | }
[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-1.2.0/src/future/future/mod.rs:20:1
[INFO] [stdout]     |
[INFO] [stdout] 20  | / extension_trait! {
[INFO] [stdout] 21  | |     use std::pin::Pin;
[INFO] [stdout] 22  | |     use std::ops::{Deref, DerefMut};
[INFO] [stdout] 23  | |
[INFO] [stdout] ...   |
[INFO] [stdout] 394 | |     }
[INFO] [stdout] 395 | | }
[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 1m 03s
[INFO] running `Command { std: "docker" "inspect" "e5b9a074666d528a8fca57a68e441577453d6a64175704747bd630341addd3c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5b9a074666d528a8fca57a68e441577453d6a64175704747bd630341addd3c4", kill_on_drop: false }`
[INFO] [stdout] e5b9a074666d528a8fca57a68e441577453d6a64175704747bd630341addd3c4
