[INFO] cloning repository https://github.com/manpat/rs-wiresim
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/manpat/rs-wiresim" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmanpat%2Frs-wiresim", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmanpat%2Frs-wiresim'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f9a2992269c887c6832112a838494a2a5bd6b247
[INFO] documenting manpat/rs-wiresim 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%2Fmanpat%2Frs-wiresim" "/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/manpat/rs-wiresim 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/manpat/rs-wiresim
[INFO] finished tweaking git repo https://github.com/manpat/rs-wiresim
[INFO] tweaked toml for git repo https://github.com/manpat/rs-wiresim written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/manpat/rs-wiresim 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 c_vec v1.3.0
[INFO] [stderr]   Downloaded lodepng v1.1.3
[INFO] [stderr]   Downloaded rgb v0.7.2
[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] f68cc349788eca67d7d5a85b9d18e50cd4334eab676ada85633056e8f7d912c9
[INFO] running `Command { std: "docker" "start" "-a" "f68cc349788eca67d7d5a85b9d18e50cd4334eab676ada85633056e8f7d912c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f68cc349788eca67d7d5a85b9d18e50cd4334eab676ada85633056e8f7d912c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f68cc349788eca67d7d5a85b9d18e50cd4334eab676ada85633056e8f7d912c9", kill_on_drop: false }`
[INFO] [stdout] f68cc349788eca67d7d5a85b9d18e50cd4334eab676ada85633056e8f7d912c9
[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] [stdout] ba48c330e0101f9c067afeca64bcc731e5360efcfbc09a9ba7c4a7f1a62f136e
[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" "ba48c330e0101f9c067afeca64bcc731e5360efcfbc09a9ba7c4a7f1a62f136e", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling sdl2-sys v0.30.0
[INFO] [stderr]    Compiling gcc v0.3.53
[INFO] [stderr]    Compiling khronos_api v1.0.1
[INFO] [stderr]     Checking rgb v0.7.2
[INFO] [stderr]     Checking c_vec v1.3.0
[INFO] [stderr]    Compiling xml-rs v0.6.1
[INFO] [stderr]     Checking sdl2 v0.30.0
[INFO] [stderr]    Compiling lodepng v1.1.3
[INFO] [stderr]    Compiling gl_generator v0.5.5
[INFO] [stderr]    Compiling wire v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting wire 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(box_syntax)]
[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(slice_patterns)]
[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 `wire`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name wire 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 lodepng=/opt/rustwide/target/debug/deps/liblodepng-7b849d156f490d54.rmeta --extern sdl2=/opt/rustwide/target/debug/deps/libsdl2-20dbc29e6e798167.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "ba48c330e0101f9c067afeca64bcc731e5360efcfbc09a9ba7c4a7f1a62f136e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba48c330e0101f9c067afeca64bcc731e5360efcfbc09a9ba7c4a7f1a62f136e", kill_on_drop: false }`
[INFO] [stdout] ba48c330e0101f9c067afeca64bcc731e5360efcfbc09a9ba7c4a7f1a62f136e