[INFO] cloning repository https://github.com/56quarters/donut
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/56quarters/donut" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F56quarters%2Fdonut", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F56quarters%2Fdonut'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8225bfc726e8f31c384b3e6b54939e240465b36f
[INFO] documenting 56quarters/donut 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%2F56quarters%2Fdonut" "/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/56quarters/donut 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/56quarters/donut
[INFO] finished tweaking git repo https://github.com/56quarters/donut
[INFO] tweaked toml for git repo https://github.com/56quarters/donut written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/56quarters/donut 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded data-encoding v2.2.1
[INFO] [stderr]   Downloaded nibble_vec v0.0.4
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.16
[INFO] [stderr]   Downloaded indexmap v1.4.0
[INFO] [stderr]   Downloaded tokio v0.2.21
[INFO] [stderr]   Downloaded endian-type v0.1.2
[INFO] [stderr]   Downloaded radix_trie v0.1.6
[INFO] [stderr]   Downloaded mio-named-pipes v0.1.6
[INFO] [stderr]   Downloaded backtrace v0.3.49
[INFO] [stderr]   Downloaded h2 v0.2.5
[INFO] [stderr]   Downloaded addr2line v0.12.2
[INFO] [stderr]   Downloaded hyper v0.13.6
[INFO] [stderr]   Downloaded tracing-subscriber v0.1.6
[INFO] [stderr]   Downloaded gimli v0.21.0
[INFO] [stderr]   Downloaded cc v1.0.55
[INFO] [stderr]   Downloaded trust-dns-client v0.19.5
[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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a5861a076e9312db0c5be1abee07649325bf91743b91b2c81ddfbc7448294f5
[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" "0a5861a076e9312db0c5be1abee07649325bf91743b91b2c81ddfbc7448294f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a5861a076e9312db0c5be1abee07649325bf91743b91b2c81ddfbc7448294f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a5861a076e9312db0c5be1abee07649325bf91743b91b2c81ddfbc7448294f5", kill_on_drop: false }`
[INFO] [stdout] 0a5861a076e9312db0c5be1abee07649325bf91743b91b2c81ddfbc7448294f5
[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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b8442760619074b38cd22c9567a59344835054cb91ab916998b31fdd3bc048d
[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" "3b8442760619074b38cd22c9567a59344835054cb91ab916998b31fdd3bc048d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking tracing-core v0.1.10
[INFO] [stderr]     Checking addr2line v0.12.2
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking backtrace v0.3.49
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking tracing-subscriber v0.1.6
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling enum-as-inner v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]    Compiling tracing-attributes v0.1.8
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking tracing v0.1.15
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking h2 v0.2.5
[INFO] [stderr]     Checking trust-dns-proto v0.19.5
[INFO] [stderr]     Checking hyper v0.13.6
[INFO] [stderr]     Checking trust-dns-client v0.19.5
[INFO] [stderr]     Checking serde_json v1.0.55
[INFO] [stderr]     Checking donut v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting donut v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 23s
[INFO] running `Command { std: "docker" "inspect" "3b8442760619074b38cd22c9567a59344835054cb91ab916998b31fdd3bc048d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b8442760619074b38cd22c9567a59344835054cb91ab916998b31fdd3bc048d", kill_on_drop: false }`
[INFO] [stdout] 3b8442760619074b38cd22c9567a59344835054cb91ab916998b31fdd3bc048d