[INFO] cloning repository https://github.com/brson/rust-doc-tool
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brson/rust-doc-tool" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrson%2Frust-doc-tool", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrson%2Frust-doc-tool'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 64a4d3f5fd13ee53c765506b20ef697a30dfb0ef
[INFO] documenting brson/rust-doc-tool 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%2Fbrson%2Frust-doc-tool" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brson/rust-doc-tool 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/brson/rust-doc-tool
[INFO] finished tweaking git repo https://github.com/brson/rust-doc-tool
[INFO] tweaked toml for git repo https://github.com/brson/rust-doc-tool written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/brson/rust-doc-tool 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 phf_generator v0.8.0
[INFO] [stderr]   Downloaded blake2 v0.8.1
[INFO] [stderr]   Downloaded proc-macro-error-attr v1.0.2
[INFO] [stderr]   Downloaded structopt-derive v0.4.6
[INFO] [stderr]   Downloaded phf v0.8.0
[INFO] [stderr]   Downloaded string_cache v0.8.0
[INFO] [stderr]   Downloaded xml5ever v0.16.1
[INFO] [stderr]   Downloaded html5ever v0.25.1
[INFO] [stderr]   Downloaded phf_codegen v0.8.0
[INFO] [stderr]   Downloaded string_cache_codegen v0.5.1
[INFO] [stderr]   Downloaded markup5ever v0.10.0
[INFO] [stderr]   Downloaded markup5ever_rcdom v0.1.0
[INFO] [stderr]   Downloaded new_debug_unreachable v1.0.4
[INFO] [stderr]   Downloaded structopt v0.3.13
[INFO] [stderr]   Downloaded proc-macro-error v1.0.2
[INFO] [stderr]   Downloaded phf_shared v0.8.0
[INFO] [stderr]   Downloaded siphasher v0.3.2
[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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3dff8602e3d612221c1143c33e108070b7267a3d2856af3520adb3f5089f94c
[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" "f3dff8602e3d612221c1143c33e108070b7267a3d2856af3520adb3f5089f94c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3dff8602e3d612221c1143c33e108070b7267a3d2856af3520adb3f5089f94c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3dff8602e3d612221c1143c33e108070b7267a3d2856af3520adb3f5089f94c", kill_on_drop: false }`
[INFO] [stdout] f3dff8602e3d612221c1143c33e108070b7267a3d2856af3520adb3f5089f94c
[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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b6f3076088ec0f507e0a4e2c35620740d119660633064a6d1429db6b3278fca
[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" "0b6f3076088ec0f507e0a4e2c35620740d119660633064a6d1429db6b3278fca", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]     Checking native-tls v0.2.4
[INFO] [stderr]     Checking tokio v0.2.18
[INFO] [stderr]    Compiling v_escape_derive v0.5.6
[INFO] [stderr]     Checking string_cache v0.8.0
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]    Compiling structopt-derive v0.4.6
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]     Checking v_escape v0.7.4
[INFO] [stderr]     Checking v_htmlescape v0.4.5
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling markup5ever v0.10.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.0
[INFO] [stderr]     Checking structopt v0.3.13
[INFO] [stderr]     Checking h2 v0.2.4
[INFO] [stderr]     Checking hyper v0.13.5
[INFO] [stderr]     Checking xml5ever v0.16.1
[INFO] [stderr]     Checking hyper-tls v0.4.1
[INFO] [stderr]     Checking markup5ever_rcdom v0.1.0
[INFO] [stderr]     Checking reqwest v0.10.4
[INFO] [stderr]  Documenting rust-doc-tool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.46s
[INFO] running `Command { std: "docker" "inspect" "0b6f3076088ec0f507e0a4e2c35620740d119660633064a6d1429db6b3278fca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b6f3076088ec0f507e0a4e2c35620740d119660633064a6d1429db6b3278fca", kill_on_drop: false }`
[INFO] [stdout] 0b6f3076088ec0f507e0a4e2c35620740d119660633064a6d1429db6b3278fca