[INFO] cloning repository https://github.com/davidcl/symbols-graph
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davidcl/symbols-graph" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidcl%2Fsymbols-graph", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidcl%2Fsymbols-graph'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f3b0013caf4cb74e9c0848ca665c5f17d57d454
[INFO] documenting davidcl/symbols-graph 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%2Fdavidcl%2Fsymbols-graph" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/davidcl/symbols-graph 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/davidcl/symbols-graph
[INFO] finished tweaking git repo https://github.com/davidcl/symbols-graph
[INFO] tweaked toml for git repo https://github.com/davidcl/symbols-graph written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/davidcl/symbols-graph 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 plain v0.2.3
[INFO] [stderr]   Downloaded scroll v0.9.2
[INFO] [stderr]   Downloaded scroll_derive v0.9.5
[INFO] [stderr]   Downloaded goblin v0.0.22
[INFO] [stderr]   Downloaded object v0.12.0
[INFO] [stderr]   Downloaded parity-wasm v0.38.0
[INFO] [stderr]   Downloaded string-interner v0.7.0
[INFO] [stderr]   Downloaded gimli v0.18.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] f5741d437242750e77b474e4df8b0d1ae3ccbdad774ab16cc251353ca64f0ffc
[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" "f5741d437242750e77b474e4df8b0d1ae3ccbdad774ab16cc251353ca64f0ffc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5741d437242750e77b474e4df8b0d1ae3ccbdad774ab16cc251353ca64f0ffc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5741d437242750e77b474e4df8b0d1ae3ccbdad774ab16cc251353ca64f0ffc", kill_on_drop: false }`
[INFO] [stdout] f5741d437242750e77b474e4df8b0d1ae3ccbdad774ab16cc251353ca64f0ffc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 322189cf28962d59b4e4a62440178e903717e3ad54a4f5d309962f5799dde523
[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" "322189cf28962d59b4e4a62440178e903717e3ad54a4f5d309962f5799dde523", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.36
[INFO] [stderr]     Checking parity-wasm v0.38.0
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking string-interner v0.7.0
[INFO] [stderr]     Checking gimli v0.18.0
[INFO] [stderr]     Checking miniz-sys v0.1.12
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking flate2 v1.0.7
[INFO] [stderr]    Compiling scroll_derive v0.9.5
[INFO] [stderr]     Checking scroll v0.9.2
[INFO] [stderr]     Checking goblin v0.0.22
[INFO] [stderr]     Checking object v0.12.0
[INFO] [stderr]  Documenting symbols-graph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.98s
[INFO] running `Command { std: "docker" "inspect" "322189cf28962d59b4e4a62440178e903717e3ad54a4f5d309962f5799dde523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "322189cf28962d59b4e4a62440178e903717e3ad54a4f5d309962f5799dde523", kill_on_drop: false }`
[INFO] [stdout] 322189cf28962d59b4e4a62440178e903717e3ad54a4f5d309962f5799dde523