[INFO] cloning repository https://github.com/aaronlevin/fuschia
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aaronlevin/fuschia" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaronlevin%2Ffuschia", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaronlevin%2Ffuschia'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4a9fd55f0a8c0bf342fa8f823d1308ccd77d9d71
[INFO] documenting aaronlevin/fuschia 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%2Faaronlevin%2Ffuschia" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aaronlevin/fuschia 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/aaronlevin/fuschia
[INFO] finished tweaking git repo https://github.com/aaronlevin/fuschia
[INFO] tweaked toml for git repo https://github.com/aaronlevin/fuschia written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/aaronlevin/fuschia 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 termcolor v1.0.2
[INFO] [stderr]   Downloaded regex v1.0.4
[INFO] [stderr]   Downloaded fuse v0.3.1
[INFO] [stderr]   Downloaded xmlparser v0.8.1
[INFO] [stderr]   Downloaded roxmltree v0.4.1
[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] b9755c57976668b7f269e5bf60bb0181a8c152611b98df6f2dc7f5daf5949ad2
[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" "b9755c57976668b7f269e5bf60bb0181a8c152611b98df6f2dc7f5daf5949ad2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9755c57976668b7f269e5bf60bb0181a8c152611b98df6f2dc7f5daf5949ad2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9755c57976668b7f269e5bf60bb0181a8c152611b98df6f2dc7f5daf5949ad2", kill_on_drop: false }`
[INFO] [stdout] b9755c57976668b7f269e5bf60bb0181a8c152611b98df6f2dc7f5daf5949ad2
[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] 363d283029a0dba5f065f7716da323ee3e7d3d0874065116c3fbe6bc6d168f7d
[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" "363d283029a0dba5f065f7716da323ee3e7d3d0874065116c3fbe6bc6d168f7d", kill_on_drop: false }`
[INFO] [stderr]     Checking xmlparser v0.8.1
[INFO] [stderr]     Checking termcolor v1.0.2
[INFO] [stderr]     Checking memchr v2.0.2
[INFO] [stderr]    Compiling fuse v0.3.1
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking roxmltree v0.4.1
[INFO] [stderr]     Checking regex v1.0.4
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]  Documenting fuse-game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/bin/starcon.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_str_len)]
[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 `fuse-game`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name starcon src/bin/starcon.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-a4553575b4e5562b.rmeta --extern fuse=/opt/rustwide/target/debug/deps/libfuse-834de56af3388703.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-810f8d236da2174b.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-dfdb9dfd13f6d39c.rmeta --extern roxmltree=/opt/rustwide/target/debug/deps/libroxmltree-5b57841f071bad23.rmeta --extern thread_scoped=/opt/rustwide/target/debug/deps/libthread_scoped-111777e497190d6c.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-cb58bbfd8d5012ac.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/bin/fuschia.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_str_len)]
[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] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/bin/xml.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_str_len)]
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "363d283029a0dba5f065f7716da323ee3e7d3d0874065116c3fbe6bc6d168f7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "363d283029a0dba5f065f7716da323ee3e7d3d0874065116c3fbe6bc6d168f7d", kill_on_drop: false }`
[INFO] [stdout] 363d283029a0dba5f065f7716da323ee3e7d3d0874065116c3fbe6bc6d168f7d