[INFO] cloning repository https://github.com/ftsell/VipTraceRouter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ftsell/VipTraceRouter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fftsell%2FVipTraceRouter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fftsell%2FVipTraceRouter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a0502f8a950355dd3fb572a80fc24092beb1a72a
[INFO] documenting ftsell/VipTraceRouter against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fftsell%2FVipTraceRouter" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ftsell/VipTraceRouter on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ftsell/VipTraceRouter
[INFO] finished tweaking git repo https://github.com/ftsell/VipTraceRouter
[INFO] tweaked toml for git repo https://github.com/ftsell/VipTraceRouter written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ftsell/VipTraceRouter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3eb49c92cb561fc1f7df59be8ca69224b6759dc93cd21bc46cc397a27e11256
[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" "e3eb49c92cb561fc1f7df59be8ca69224b6759dc93cd21bc46cc397a27e11256", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3eb49c92cb561fc1f7df59be8ca69224b6759dc93cd21bc46cc397a27e11256", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3eb49c92cb561fc1f7df59be8ca69224b6759dc93cd21bc46cc397a27e11256", kill_on_drop: false }`
[INFO] [stdout] e3eb49c92cb561fc1f7df59be8ca69224b6759dc93cd21bc46cc397a27e11256
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "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] 06f1ccd4ada7394af161db98d7486799e6f9b7ad03831e69aaddc653ecd0fd27
[INFO] running `Command { std: "docker" "start" "-a" "06f1ccd4ada7394af161db98d7486799e6f9b7ad03831e69aaddc653ecd0fd27", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]     Checking pnet_base v0.28.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling tokio v1.12.0
[INFO] [stderr]     Checking instant v0.1.11
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]     Checking pnet_macros_support v0.28.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking nix v0.22.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking simplelog v0.10.2
[INFO] [stderr]    Compiling tokio-macros v1.4.1
[INFO] [stderr]    Compiling pnet_macros v0.28.0
[INFO] [stderr]     Checking pnet_packet v0.28.0
[INFO] [stderr]     Checking futures-executor v0.3.17
[INFO] [stderr]     Checking futures v0.3.17
[INFO] [stderr]     Checking tokio-tun v0.3.16 (https://github.com/ftsell/tokio-tun.git?branch=feature/ipv6_support#084f4a04)
[INFO] [stderr]  Documenting vip_tracerouter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(ip)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(async_closure)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `vip_tracerouter`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name vip_tracerouter src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=636fb4ac48588515 -L dependency=/opt/rustwide/target/debug/deps --extern clap=/opt/rustwide/target/debug/deps/libclap-6d7d971966cbdab9.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-250758b0906e1967.rmeta --extern pnet_packet=/opt/rustwide/target/debug/deps/libpnet_packet-798a4fc6d1defb26.rmeta --extern simplelog=/opt/rustwide/target/debug/deps/libsimplelog-250c514df576828f.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-9d5b988c10f34d75.rmeta --extern tokio_tun=/opt/rustwide/target/debug/deps/libtokio_tun-e2f993d2111deb6e.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "06f1ccd4ada7394af161db98d7486799e6f9b7ad03831e69aaddc653ecd0fd27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06f1ccd4ada7394af161db98d7486799e6f9b7ad03831e69aaddc653ecd0fd27", kill_on_drop: false }`
[INFO] [stdout] 06f1ccd4ada7394af161db98d7486799e6f9b7ad03831e69aaddc653ecd0fd27