[INFO] cloning repository https://github.com/Lolirofle/tabbed_text_to_html
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lolirofle/tabbed_text_to_html" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLolirofle%2Ftabbed_text_to_html", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLolirofle%2Ftabbed_text_to_html'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a6b7f72cdb1cd3b695e96f56aa06b5dbd061f164
[INFO] documenting Lolirofle/tabbed_text_to_html against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLolirofle%2Ftabbed_text_to_html" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Lolirofle/tabbed_text_to_html on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Lolirofle/tabbed_text_to_html
[INFO] finished tweaking git repo https://github.com/Lolirofle/tabbed_text_to_html
[INFO] tweaked toml for git repo https://github.com/Lolirofle/tabbed_text_to_html written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Lolirofle/tabbed_text_to_html already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded structopt v0.1.4
[INFO] [stderr]   Downloaded structopt-derive v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a04a9b663bff95f975371684df74fc65465742bc9866e123a75dc639a94bac42
[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" "a04a9b663bff95f975371684df74fc65465742bc9866e123a75dc639a94bac42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a04a9b663bff95f975371684df74fc65465742bc9866e123a75dc639a94bac42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a04a9b663bff95f975371684df74fc65465742bc9866e123a75dc639a94bac42", kill_on_drop: false }`
[INFO] [stdout] a04a9b663bff95f975371684df74fc65465742bc9866e123a75dc639a94bac42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25e810d21959eb832a84d7ff59bd1f45c08b2f430c7366899d14fb3edbc1d51f
[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" "25e810d21959eb832a84d7ff59bd1f45c08b2f430c7366899d14fb3edbc1d51f", kill_on_drop: false }`
[INFO] [stderr]    Compiling structopt-derive v0.1.4
[INFO] [stderr]     Checking structopt v0.1.4
[INFO] [stderr]  Documenting tabbed_text 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(io,plugin)]
[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 `tabbed_text`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name tabbed_text src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-23b7f78b988d6979.rmeta --extern structopt_derive=/opt/rustwide/target/debug/deps/libstructopt_derive-b3d9cd62a6107b04.so --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "25e810d21959eb832a84d7ff59bd1f45c08b2f430c7366899d14fb3edbc1d51f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25e810d21959eb832a84d7ff59bd1f45c08b2f430c7366899d14fb3edbc1d51f", kill_on_drop: false }`
[INFO] [stdout] 25e810d21959eb832a84d7ff59bd1f45c08b2f430c7366899d14fb3edbc1d51f
