[INFO] cloning repository https://github.com/AaronFriel/slower-surfer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AaronFriel/slower-surfer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAaronFriel%2Fslower-surfer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAaronFriel%2Fslower-surfer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0be3408ca2cf1299200575c5479d11b009c603da
[INFO] documenting AaronFriel/slower-surfer against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAaronFriel%2Fslower-surfer" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AaronFriel/slower-surfer 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 git repo https://github.com/AaronFriel/slower-surfer
[INFO] finished tweaking git repo https://github.com/AaronFriel/slower-surfer
[INFO] tweaked toml for git repo https://github.com/AaronFriel/slower-surfer written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/AaronFriel/slower-surfer already has a lockfile, it will not be regenerated
[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 broadcaster v0.2.6
[INFO] [stderr]   Downloaded kv-log-macro v1.0.4
[INFO] [stderr]   Downloaded once_cell v1.2.0
[INFO] [stderr]   Downloaded anyhow v1.0.25
[INFO] [stderr]   Downloaded http-service v0.4.0
[INFO] [stderr]   Downloaded curl v0.4.25
[INFO] [stderr]   Downloaded isahc v0.7.6
[INFO] [stderr]   Downloaded openssl-sys v0.9.53
[INFO] [stderr]   Downloaded surf v1.0.3
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.55
[INFO] [stderr]   Downloaded wasm-bindgen-webidl v0.2.55
[INFO] [stderr]   Downloaded sluice v0.4.2
[INFO] [stderr]   Downloaded async-macros v2.0.0
[INFO] [stderr]   Downloaded web-sys v0.3.32
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.55
[INFO] [stderr]   Downloaded async-std v1.2.0
[INFO] [stderr]   Downloaded js-sys v0.3.32
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.55
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.55
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.55
[INFO] [stderr]   Downloaded cc v1.0.47
[INFO] [stderr]   Downloaded http v0.1.20
[INFO] [stderr]   Downloaded http-service-hyper v0.4.1
[INFO] [stderr]   Downloaded tokio-reactor v0.1.11
[INFO] [stderr]   Downloaded tide v0.4.0
[INFO] [stderr]   Downloaded curl-sys v0.4.24
[INFO] [stderr]   Downloaded libnghttp2-sys v0.1.2
[INFO] [stderr]   Downloaded async-trait v0.1.19
[INFO] [stderr]   Downloaded serde_qs v0.5.1
[INFO] [stderr]   Downloaded async-task v1.0.0
[INFO] [stderr]   Downloaded serde_json v1.0.42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stdout] 3adea02db1dd46790b737de183b8c1aae17a1c0ec72f2c2e4ea227868d07966f
[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" "3adea02db1dd46790b737de183b8c1aae17a1c0ec72f2c2e4ea227868d07966f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3adea02db1dd46790b737de183b8c1aae17a1c0ec72f2c2e4ea227868d07966f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3adea02db1dd46790b737de183b8c1aae17a1c0ec72f2c2e4ea227868d07966f", kill_on_drop: false }`
[INFO] [stdout] 3adea02db1dd46790b737de183b8c1aae17a1c0ec72f2c2e4ea227868d07966f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] ecda7aa95de87f41440b5dbf85f93ead911f4561bee7f69d41a83c99a835b18e
[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" "ecda7aa95de87f41440b5dbf85f93ead911f4561bee7f69d41a83c99a835b18e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-io v0.3.1
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]     Checking smallvec v1.0.0
[INFO] [stderr]     Checking once_cell v1.2.0
[INFO] [stderr]     Checking futures-timer v2.0.2
[INFO] [stderr]    Compiling isahc v0.7.6
[INFO] [stderr]     Checking route-recognizer v0.1.13
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.2
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]    Compiling curl-sys v0.4.24
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stderr]     Checking async-macros v2.0.0
[INFO] [stderr]     Checking async-task v1.0.0
[INFO] [stderr]     Checking backtrace-sys v0.1.32
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]     Checking kv-log-macro v1.0.4
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.20
[INFO] [stderr]     Checking unicode-normalization v0.1.11
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking sluice v0.4.2
[INFO] [stderr]     Checking tokio-threadpool v0.1.16
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking tokio-reactor v0.1.11
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]     Checking broadcaster v0.2.6
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking serde_json v1.0.42
[INFO] [stderr]     Checking serde_qs v0.5.1
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling async-trait v0.1.19
[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]    Compiling curl v0.4.25
[INFO] [stderr]     Checking surf v1.0.3
[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 tide v0.4.0
[INFO] [stderr]  Documenting slower-surfer v0.1.0 (/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 32.01s
[INFO] running `Command { std: "docker" "inspect" "ecda7aa95de87f41440b5dbf85f93ead911f4561bee7f69d41a83c99a835b18e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecda7aa95de87f41440b5dbf85f93ead911f4561bee7f69d41a83c99a835b18e", kill_on_drop: false }`
[INFO] [stdout] ecda7aa95de87f41440b5dbf85f93ead911f4561bee7f69d41a83c99a835b18e