[INFO] cloning repository https://github.com/73nko/duna
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/73nko/duna" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F73nko%2Fduna", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F73nko%2Fduna'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 329bf4834a1a1ec9cf5735147654e14f5be0ebe7
[INFO] documenting 73nko/duna 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%2F73nko%2Fduna" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/73nko/duna 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/73nko/duna
[INFO] finished tweaking git repo https://github.com/73nko/duna
[INFO] tweaked toml for git repo https://github.com/73nko/duna written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/73nko/duna 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 pin-project v0.4.22
[INFO] [stderr]   Downloaded scoped-tls v0.1.2
[INFO] [stderr]   Downloaded generator v0.6.21
[INFO] [stderr]   Downloaded sluice v0.5.2
[INFO] [stderr]   Downloaded pin-project-internal v0.4.22
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.2
[INFO] [stderr]   Downloaded curl v0.4.30
[INFO] [stderr]   Downloaded syn v1.0.33
[INFO] [stderr]   Downloaded isahc v0.9.5
[INFO] [stderr]   Downloaded libnghttp2-sys v0.1.4+1.41.0
[INFO] [stderr]   Downloaded bytes v0.5.5
[INFO] [stderr]   Downloaded curl-sys v0.4.32+curl-7.70.0
[INFO] [stderr]   Downloaded libz-sys v1.0.25
[INFO] [stderr]   Downloaded loom v0.3.4
[INFO] [stderr]   Downloaded tracing v0.1.16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 29144fc0a290745e2f6dcfbec310c42b2c5e2d349c644edc2e872cd9a415b91d
[INFO] running `Command { std: "docker" "start" "-a" "29144fc0a290745e2f6dcfbec310c42b2c5e2d349c644edc2e872cd9a415b91d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29144fc0a290745e2f6dcfbec310c42b2c5e2d349c644edc2e872cd9a415b91d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29144fc0a290745e2f6dcfbec310c42b2c5e2d349c644edc2e872cd9a415b91d", kill_on_drop: false }`
[INFO] [stdout] 29144fc0a290745e2f6dcfbec310c42b2c5e2d349c644edc2e872cd9a415b91d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 1fac2efea31d12485943526ec32d60cdf930094f6d666c1b9f37c748c8c046ba
[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" "1fac2efea31d12485943526ec32d60cdf930094f6d666c1b9f37c748c8c046ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling curl v0.4.30
[INFO] [stderr]    Compiling isahc v0.9.5
[INFO] [stderr]     Checking bytes v0.5.5
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.4+1.41.0
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling curl-sys v0.4.32+curl-7.70.0
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling tracing-attributes v0.1.9
[INFO] [stderr]     Checking tracing v0.1.16
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking sluice v0.5.2
[INFO] [stderr]  Documenting duna v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.88s
[INFO] running `Command { std: "docker" "inspect" "1fac2efea31d12485943526ec32d60cdf930094f6d666c1b9f37c748c8c046ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fac2efea31d12485943526ec32d60cdf930094f6d666c1b9f37c748c8c046ba", kill_on_drop: false }`
[INFO] [stdout] 1fac2efea31d12485943526ec32d60cdf930094f6d666c1b9f37c748c8c046ba