[INFO] cloning repository https://github.com/retep998/windump-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/retep998/windump-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fretep998%2Fwindump-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fretep998%2Fwindump-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 166fae712548941b09b0576f87ebde37242fe66f
[INFO] documenting retep998/windump-rs 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%2Fretep998%2Fwindump-rs" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/retep998/windump-rs 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/retep998/windump-rs
[INFO] finished tweaking git repo https://github.com/retep998/windump-rs
[INFO] tweaked toml for git repo https://github.com/retep998/windump-rs written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/retep998/windump-rs 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 6c3961d6267a8464cbe70f15f6997eafa9dcabb7eb1f411602bc8c75563d3628
[INFO] running `Command { std: "docker" "start" "-a" "6c3961d6267a8464cbe70f15f6997eafa9dcabb7eb1f411602bc8c75563d3628", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c3961d6267a8464cbe70f15f6997eafa9dcabb7eb1f411602bc8c75563d3628", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c3961d6267a8464cbe70f15f6997eafa9dcabb7eb1f411602bc8c75563d3628", kill_on_drop: false }`
[INFO] [stdout] 6c3961d6267a8464cbe70f15f6997eafa9dcabb7eb1f411602bc8c75563d3628
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fb3a09637849c237679ef784b36316870f23861f23fd253e10e47534f8c15a1d
[INFO] running `Command { std: "docker" "start" "-a" "fb3a09637849c237679ef784b36316870f23861f23fd253e10e47534f8c15a1d", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]    Compiling syn v1.0.21
[INFO] [stderr]     Checking pin-project-lite v0.1.5
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]    Compiling quote v1.0.5
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]    Compiling openssl-sys v0.9.56
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.16
[INFO] [stderr]     Checking pin-project v0.4.16
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking h2 v0.2.5
[INFO] [stderr]     Checking hyper v0.13.5
[INFO] [stderr]     Checking hyper-tls v0.4.1
[INFO] [stderr]     Checking reqwest v0.10.4
[INFO] [stderr]  Documenting windump v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/bin/cleaner.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(path_relative_from)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `windump`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name cleaner src/bin/cleaner.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern chrono=/opt/rustwide/target/debug/deps/libchrono-6dfec0d179b7e979.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-376bb620e989ee0a.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-aee09b4953c30fbd.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-1eef7ecd81b65754.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-37c1eba6428ea4cb.rmeta --cap-lints=warn --crate-version 0.0.1` (exit code: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "fb3a09637849c237679ef784b36316870f23861f23fd253e10e47534f8c15a1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb3a09637849c237679ef784b36316870f23861f23fd253e10e47534f8c15a1d", kill_on_drop: false }`
[INFO] [stdout] fb3a09637849c237679ef784b36316870f23861f23fd253e10e47534f8c15a1d