[INFO] cloning repository https://github.com/ayosec/markdown-preview
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ayosec/markdown-preview" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayosec%2Fmarkdown-preview", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayosec%2Fmarkdown-preview'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd8d2688bd9bec0c251b63cc45f3fea67e288969
[INFO] documenting ayosec/markdown-preview against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayosec%2Fmarkdown-preview" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ayosec/markdown-preview on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ayosec/markdown-preview
[INFO] finished tweaking git repo https://github.com/ayosec/markdown-preview
[INFO] tweaked toml for git repo https://github.com/ayosec/markdown-preview written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/ayosec/markdown-preview already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8058a79e9a0f4cbb010c707319e516cd5070d19b647a2372c2a66816bab9db3d
[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" "8058a79e9a0f4cbb010c707319e516cd5070d19b647a2372c2a66816bab9db3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8058a79e9a0f4cbb010c707319e516cd5070d19b647a2372c2a66816bab9db3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8058a79e9a0f4cbb010c707319e516cd5070d19b647a2372c2a66816bab9db3d", kill_on_drop: false }`
[INFO] [stdout] 8058a79e9a0f4cbb010c707319e516cd5070d19b647a2372c2a66816bab9db3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88f14190108cd0bead9b15aeaba19a0665c146f2bd8d222815995510ca01abbc
[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" "88f14190108cd0bead9b15aeaba19a0665c146f2bd8d222815995510ca01abbc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling cssparser v0.27.2
[INFO] [stderr]    Compiling cssparser-macros v0.6.0
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling pest_generator v2.1.2
[INFO] [stderr]     Checking tokio v0.2.13
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]     Checking tungstenite v0.10.1
[INFO] [stderr]    Compiling selectors v0.22.0
[INFO] [stderr]     Checking headers v0.3.1
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]    Compiling markup5ever v0.10.0
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.11
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling proc-macro-error v0.4.11
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]    Compiling structopt-derive v0.4.4
[INFO] [stderr]     Checking multipart v0.16.1
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking comrak v0.7.0
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking inotify v0.8.2
[INFO] [stderr]     Checking tokio-tungstenite v0.10.1
[INFO] [stderr]     Checking h2 v0.2.2
[INFO] [stderr]     Checking structopt v0.3.11
[INFO] [stderr]     Checking kuchiki v0.8.0
[INFO] [stderr]     Checking hyper v0.13.3
[INFO] [stderr]     Checking warp v0.2.2
[INFO] [stderr]  Documenting markdown-preview v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `Command { std: "docker" "inspect" "88f14190108cd0bead9b15aeaba19a0665c146f2bd8d222815995510ca01abbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88f14190108cd0bead9b15aeaba19a0665c146f2bd8d222815995510ca01abbc", kill_on_drop: false }`
[INFO] [stdout] 88f14190108cd0bead9b15aeaba19a0665c146f2bd8d222815995510ca01abbc