[INFO] fetching crate donut 0.1.0...
[INFO] documenting donut-0.1.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate donut 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate donut 0.1.0 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 crates.io crate donut 0.1.0
[INFO] finished tweaking crates.io crate donut 0.1.0
[INFO] tweaked toml for crates.io crate donut 0.1.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate donut 0.1.0 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 tracing-attributes v0.1.6
[INFO] [stderr]   Downloaded trust-dns-proto v0.18.1
[INFO] [stderr]   Downloaded tracing v0.1.12
[INFO] [stderr]   Downloaded tracing-core v0.1.9
[INFO] [stderr]   Downloaded trust-dns-client v0.18.1
[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] e531214aa5d5a7d0590bdf618441ad3a10a2f267fe9c379884bf95fa5e9e0601
[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" "e531214aa5d5a7d0590bdf618441ad3a10a2f267fe9c379884bf95fa5e9e0601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e531214aa5d5a7d0590bdf618441ad3a10a2f267fe9c379884bf95fa5e9e0601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e531214aa5d5a7d0590bdf618441ad3a10a2f267fe9c379884bf95fa5e9e0601", kill_on_drop: false }`
[INFO] [stdout] e531214aa5d5a7d0590bdf618441ad3a10a2f267fe9c379884bf95fa5e9e0601
[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] 295a53b805132cd12f5e33f97ff8a70874fd64e3f7d9a43d7bf3b48b9d06b29f
[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" "295a53b805132cd12f5e33f97ff8a70874fd64e3f7d9a43d7bf3b48b9d06b29f", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking regex-syntax v0.6.13
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking data-encoding v2.1.2
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking nibble_vec v0.0.4
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling indexmap v1.3.1
[INFO] [stderr]     Checking tracing-core v0.1.9
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking radix_trie v0.1.6
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking regex v1.3.3
[INFO] [stderr]     Checking backtrace v0.3.42
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking tracing-subscriber v0.1.6
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling tokio-macros v0.2.3
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling pin-project-internal v0.4.6
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling enum-as-inner v0.3.0
[INFO] [stderr]    Compiling async-trait v0.1.22
[INFO] [stderr]    Compiling tracing-attributes v0.1.6
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking tokio v0.2.9
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]     Checking tracing v0.1.12
[INFO] [stderr]     Checking pin-project v0.4.6
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking futures-executor v0.3.1
[INFO] [stderr]     Checking h2 v0.2.1
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking futures v0.3.1
[INFO] [stderr]     Checking trust-dns-proto v0.18.1
[INFO] [stderr]     Checking hyper v0.13.1
[INFO] [stderr]     Checking trust-dns-client v0.18.1
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking donut v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting donut v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `Command { std: "docker" "inspect" "295a53b805132cd12f5e33f97ff8a70874fd64e3f7d9a43d7bf3b48b9d06b29f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "295a53b805132cd12f5e33f97ff8a70874fd64e3f7d9a43d7bf3b48b9d06b29f", kill_on_drop: false }`
[INFO] [stdout] 295a53b805132cd12f5e33f97ff8a70874fd64e3f7d9a43d7bf3b48b9d06b29f