[INFO] cloning repository https://github.com/kmaasrud/mdbook-backlinks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kmaasrud/mdbook-backlinks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkmaasrud%2Fmdbook-backlinks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkmaasrud%2Fmdbook-backlinks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 23ff4e3ebed78aca37cd1367547acde34a01f9fa
[INFO] documenting kmaasrud/mdbook-backlinks against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkmaasrud%2Fmdbook-backlinks" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kmaasrud/mdbook-backlinks on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kmaasrud/mdbook-backlinks
[INFO] finished tweaking git repo https://github.com/kmaasrud/mdbook-backlinks
[INFO] tweaked toml for git repo https://github.com/kmaasrud/mdbook-backlinks written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/kmaasrud/mdbook-backlinks already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e22e936d0f9131079407a7767a89bd497c24479a6d054afd148ce5e9c328af9
[INFO] running `Command { std: "docker" "start" "-a" "8e22e936d0f9131079407a7767a89bd497c24479a6d054afd148ce5e9c328af9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e22e936d0f9131079407a7767a89bd497c24479a6d054afd148ce5e9c328af9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e22e936d0f9131079407a7767a89bd497c24479a6d054afd148ce5e9c328af9", kill_on_drop: false }`
[INFO] [stdout] 8e22e936d0f9131079407a7767a89bd497c24479a6d054afd148ce5e9c328af9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea0e2e1893147dc2dd2a70432291374d24925270e7f16385f26df47d45f27756
[INFO] running `Command { std: "docker" "start" "-a" "ea0e2e1893147dc2dd2a70432291374d24925270e7f16385f26df47d45f27756", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking cpufeatures v0.1.4
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]    Compiling anyhow v1.0.41
[INFO] [stderr]     Checking strum v0.18.0
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking quick-error v2.0.1
[INFO] [stderr]    Compiling semver v1.0.3
[INFO] [stderr]     Checking urlencoding v1.3.3
[INFO] [stderr]     Checking shlex v1.0.0
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stderr]     Checking which v4.1.0
[INFO] [stderr]     Checking string_cache v0.8.1
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking open v1.7.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking sha-1 v0.9.6
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking tendril v0.4.2
[INFO] [stderr]     Checking gitignore v1.0.7
[INFO] [stderr]     Checking headers v0.3.4
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]     Checking notify v4.0.17
[INFO] [stderr]     Checking tungstenite v0.11.1
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling markup5ever v0.10.1
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking xml5ever v0.16.1
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking handlebars v4.0.0
[INFO] [stderr]     Checking pin-project v0.4.28
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking markup5ever_rcdom v0.1.0
[INFO] [stderr]     Checking ammonia v3.1.1
[INFO] [stderr]     Checking elasticlunr-rs v2.3.12
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tungstenite v0.11.0
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Checking warp v0.2.5
[INFO] [stderr]     Checking mdbook v0.4.10
[INFO] [stderr]  Documenting mdbook-backlinks v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.82s
[INFO] running `Command { std: "docker" "inspect" "ea0e2e1893147dc2dd2a70432291374d24925270e7f16385f26df47d45f27756", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea0e2e1893147dc2dd2a70432291374d24925270e7f16385f26df47d45f27756", kill_on_drop: false }`
[INFO] [stdout] ea0e2e1893147dc2dd2a70432291374d24925270e7f16385f26df47d45f27756
