[INFO] cloning repository https://github.com/Samlof/rustboy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Samlof/rustboy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamlof%2Frustboy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamlof%2Frustboy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3a9d0f8b5ba44e828886609f6486303e0b5b5223
[INFO] documenting Samlof/rustboy 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%2FSamlof%2Frustboy" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Samlof/rustboy 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/Samlof/rustboy
[INFO] finished tweaking git repo https://github.com/Samlof/rustboy
[INFO] tweaked toml for git repo https://github.com/Samlof/rustboy written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Samlof/rustboy 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]  Downloading crates ...
[INFO] [stderr]   Downloaded enum-primitive-derive v0.1.2
[INFO] [stderr]   Downloaded minifb v0.10.7
[INFO] [stderr]   Downloaded orbclient v0.3.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 0c36a1b2cae5d2e91a7a8fa67be2ec8f80ea71f9d3ed440bc401f0520c5be83b
[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" "0c36a1b2cae5d2e91a7a8fa67be2ec8f80ea71f9d3ed440bc401f0520c5be83b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c36a1b2cae5d2e91a7a8fa67be2ec8f80ea71f9d3ed440bc401f0520c5be83b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c36a1b2cae5d2e91a7a8fa67be2ec8f80ea71f9d3ed440bc401f0520c5be83b", kill_on_drop: false }`
[INFO] [stdout] 0c36a1b2cae5d2e91a7a8fa67be2ec8f80ea71f9d3ed440bc401f0520c5be83b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] ef2420618360c4e77c1569190b98519884efffe0a36fc9ab7bf676a2fdc2cf74
[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" "ef2420618360c4e77c1569190b98519884efffe0a36fc9ab7bf676a2fdc2cf74", 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]    Compiling x11-dl v2.14.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling minifb v0.10.7
[INFO] [stderr]    Compiling enum-primitive-derive v0.1.2
[INFO] [stderr]  Documenting rustboy 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(nll)]
[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:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(exclusive_range_pattern)]
[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 `rustboy`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name rustboy 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 enum_primitive_derive=/opt/rustwide/target/debug/deps/libenum_primitive_derive-78c66bcb7a692acb.so --extern minifb=/opt/rustwide/target/debug/deps/libminifb-ea02df08037898f8.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-d7fa6be46651dfb5.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "ef2420618360c4e77c1569190b98519884efffe0a36fc9ab7bf676a2fdc2cf74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef2420618360c4e77c1569190b98519884efffe0a36fc9ab7bf676a2fdc2cf74", kill_on_drop: false }`
[INFO] [stdout] ef2420618360c4e77c1569190b98519884efffe0a36fc9ab7bf676a2fdc2cf74