[INFO] cloning repository https://github.com/bloveless/tweet-stream-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bloveless/tweet-stream-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbloveless%2Ftweet-stream-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbloveless%2Ftweet-stream-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 57de5c508508eec54f2b55f6c19ae3af23856609
[INFO] documenting bloveless/tweet-stream-rs against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbloveless%2Ftweet-stream-rs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bloveless/tweet-stream-rs 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 git repo https://github.com/bloveless/tweet-stream-rs
[INFO] finished tweaking git repo https://github.com/bloveless/tweet-stream-rs
[INFO] tweaked toml for git repo https://github.com/bloveless/tweet-stream-rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/bloveless/tweet-stream-rs 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 hmac-sha1 v0.1.3
[INFO] [stderr]   Downloaded pin-project v0.4.6
[INFO] [stderr]   Downloaded schannel v0.1.16
[INFO] [stderr]   Downloaded hyper v0.13.1
[INFO] [stderr]   Downloaded serde_json v1.0.44
[INFO] [stderr]   Downloaded mime v0.3.14
[INFO] [stderr]   Downloaded openssl v0.10.26
[INFO] [stderr]   Downloaded openssl-sys v0.9.53
[INFO] [stderr]   Downloaded url v2.1.0
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.6
[INFO] [stderr]   Downloaded wasm-bindgen-webidl v0.2.56
[INFO] [stderr]   Downloaded web-sys v0.3.33
[INFO] [stderr]   Downloaded reqwest v0.10.0
[INFO] [stderr]   Downloaded syn v1.0.13
[INFO] [stderr]   Downloaded unicode-normalization v0.1.11
[INFO] [stderr]   Downloaded tokio-macros v0.2.1
[INFO] [stderr]   Downloaded pin-project-lite v0.1.2
[INFO] [stderr]   Downloaded hyper-tls v0.4.0
[INFO] [stderr]   Downloaded dtoa v0.4.4
[INFO] [stderr]   Downloaded smallvec v1.1.0
[INFO] [stderr]   Downloaded bytes v0.5.3
[INFO] [stderr]   Downloaded num_cpus v1.11.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.7
[INFO] [stderr]   Downloaded tokio v0.2.6
[INFO] [stderr]   Downloaded pin-project-internal v0.4.6
[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] cdd2573b1594c3587665c1a5124cbfd41f320a922f28e6a278e85dd22b706973
[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" "cdd2573b1594c3587665c1a5124cbfd41f320a922f28e6a278e85dd22b706973", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdd2573b1594c3587665c1a5124cbfd41f320a922f28e6a278e85dd22b706973", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdd2573b1594c3587665c1a5124cbfd41f320a922f28e6a278e85dd22b706973", kill_on_drop: false }`
[INFO] [stdout] cdd2573b1594c3587665c1a5124cbfd41f320a922f28e6a278e85dd22b706973
[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] 1165f3dbcd1f2114327a44205e9de3b63a9e6c1ef8e77b5ba38f4d30a345aacf
[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" "1165f3dbcd1f2114327a44205e9de3b63a9e6c1ef8e77b5ba38f4d30a345aacf", kill_on_drop: false }`
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking uuid v0.1.18
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling tokio-macros v0.2.1
[INFO] [stderr]     Checking url v0.2.38
[INFO] [stderr]     Checking tokio v0.2.6
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking tokio-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.2.1
[INFO] [stderr]     Checking hyper v0.13.1
[INFO] [stderr]     Checking hyper-tls v0.4.0
[INFO] [stderr]     Checking reqwest v0.10.0
[INFO] [stderr]  Documenting tweet-stream v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.14s
[INFO] running `Command { std: "docker" "inspect" "1165f3dbcd1f2114327a44205e9de3b63a9e6c1ef8e77b5ba38f4d30a345aacf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1165f3dbcd1f2114327a44205e9de3b63a9e6c1ef8e77b5ba38f4d30a345aacf", kill_on_drop: false }`
[INFO] [stdout] 1165f3dbcd1f2114327a44205e9de3b63a9e6c1ef8e77b5ba38f4d30a345aacf