[INFO] fetching crate flowy 0.3.3...
[INFO] documenting flowy-0.3.3 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate flowy 0.3.3 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate flowy 0.3.3 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 flowy 0.3.3
[INFO] finished tweaking crates.io crate flowy 0.3.3
[INFO] tweaked toml for crates.io crate flowy 0.3.3 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate flowy 0.3.3 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 cookie v0.13.3
[INFO] [stderr]   Downloaded directories-next v1.0.1
[INFO] [stderr]   Downloaded ureq v1.3.0
[INFO] [stderr]   Downloaded indexmap v1.5.0
[INFO] [stderr]   Downloaded standback v0.2.9
[INFO] [stderr]   Downloaded syn v1.0.36
[INFO] [stderr]   Downloaded filetime v0.2.11
[INFO] [stderr]   Downloaded tar v0.4.29
[INFO] [stderr]   Downloaded time v0.2.16
[INFO] [stderr]   Downloaded enquote v1.0.3
[INFO] [stderr]   Downloaded hashbrown v0.8.1
[INFO] [stderr]   Downloaded wallpaper_rs v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 46d77c5103c3b42c06dd529c30aa531f9e32b79e85714f9a32a3d2c7b4a930b3
[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" "46d77c5103c3b42c06dd529c30aa531f9e32b79e85714f9a32a3d2c7b4a930b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46d77c5103c3b42c06dd529c30aa531f9e32b79e85714f9a32a3d2c7b4a930b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46d77c5103c3b42c06dd529c30aa531f9e32b79e85714f9a32a3d2c7b4a930b3", kill_on_drop: false }`
[INFO] [stdout] 46d77c5103c3b42c06dd529c30aa531f9e32b79e85714f9a32a3d2c7b4a930b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 42c9f379cc1be5e8823882e21c30588fd0b43f48dfec47a759de4e696d4ec8ba
[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" "42c9f379cc1be5e8823882e21c30588fd0b43f48dfec47a759de4e696d4ec8ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]     Checking enquote v1.0.3
[INFO] [stderr]     Checking os_str_bytes v2.3.1
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking dirs-sys-next v0.1.0
[INFO] [stderr]     Checking filetime v0.2.11
[INFO] [stderr]     Checking flate2 v1.0.16
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking wallpaper_rs v0.1.0
[INFO] [stderr]     Checking directories-next v1.0.1
[INFO] [stderr]     Checking tar v0.4.29
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking rustls v0.17.0
[INFO] [stderr]     Checking webpki-roots v0.19.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]     Checking time-macros v0.1.0
[INFO] [stderr]     Checking time v0.2.16
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.1
[INFO] [stderr]     Checking cookie v0.13.3
[INFO] [stderr]     Checking clap v3.0.0-beta.1
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking ureq v1.3.0
[INFO] [stderr]  Documenting flowy v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.60s
[INFO] running `Command { std: "docker" "inspect" "42c9f379cc1be5e8823882e21c30588fd0b43f48dfec47a759de4e696d4ec8ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42c9f379cc1be5e8823882e21c30588fd0b43f48dfec47a759de4e696d4ec8ba", kill_on_drop: false }`
[INFO] [stdout] 42c9f379cc1be5e8823882e21c30588fd0b43f48dfec47a759de4e696d4ec8ba