[INFO] cloning repository https://github.com/lipengsh/rush
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lipengsh/rush" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flipengsh%2Frush", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flipengsh%2Frush'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c9dcfa9da683197315b471ac9bca3d7d31eb082
[INFO] documenting lipengsh/rush 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%2Flipengsh%2Frush" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  62% (538/862)   
Checking out files:  63% (544/862)   
Checking out files:  64% (552/862)   
Checking out files:  65% (561/862)   
Checking out files:  66% (569/862)   
Checking out files:  67% (578/862)   
Checking out files:  68% (587/862)   
Checking out files:  69% (595/862)   
Checking out files:  70% (604/862)   
Checking out files:  71% (613/862)   
Checking out files:  72% (621/862)   
Checking out files:  73% (630/862)   
Checking out files:  74% (638/862)   
Checking out files:  75% (647/862)   
Checking out files:  76% (656/862)   
Checking out files:  77% (664/862)   
Checking out files:  78% (673/862)   
Checking out files:  79% (681/862)   
Checking out files:  80% (690/862)   
Checking out files:  81% (699/862)   
Checking out files:  82% (707/862)   
Checking out files:  83% (716/862)   
Checking out files:  84% (725/862)   
Checking out files:  85% (733/862)   
Checking out files:  86% (742/862)   
Checking out files:  87% (750/862)   
Checking out files:  87% (755/862)   
Checking out files:  88% (759/862)   
Checking out files:  89% (768/862)   
Checking out files:  90% (776/862)   
Checking out files:  91% (785/862)   
Checking out files:  92% (794/862)   
Checking out files:  93% (802/862)   
Checking out files:  94% (811/862)   
Checking out files:  95% (819/862)   
Checking out files:  96% (828/862)   
Checking out files:  97% (837/862)   
Checking out files:  98% (845/862)   
Checking out files:  99% (854/862)   
Checking out files: 100% (862/862)   
Checking out files: 100% (862/862), done.
[INFO] validating manifest of git repo https://github.com/lipengsh/rush 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/lipengsh/rush
[INFO] finished tweaking git repo https://github.com/lipengsh/rush
[INFO] tweaked toml for git repo https://github.com/lipengsh/rush written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/lipengsh/rush 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 packed_simd v0.3.3
[INFO] [stderr]   Downloaded flatbuffers v0.5.0
[INFO] [stderr]   Downloaded arrow v0.15.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 737bdba3122939dbcfa0e048308076865a17590737c24806348d71e621dd2646
[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" "737bdba3122939dbcfa0e048308076865a17590737c24806348d71e621dd2646", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "737bdba3122939dbcfa0e048308076865a17590737c24806348d71e621dd2646", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "737bdba3122939dbcfa0e048308076865a17590737c24806348d71e621dd2646", kill_on_drop: false }`
[INFO] [stdout] 737bdba3122939dbcfa0e048308076865a17590737c24806348d71e621dd2646
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 9d171e76b07e975fa1b304d109710afb33bf0f7dfae8398175e9d43ea73ec9ba
[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" "9d171e76b07e975fa1b304d109710afb33bf0f7dfae8398175e9d43ea73ec9ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling syn v1.0.7
[INFO] [stderr]    Compiling packed_simd v0.3.3
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]     Checking flatbuffers v0.5.0
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd-0.3.3/src/lib.rs:202:1
[INFO] [stdout]     |
[INFO] [stdout] 202 | / #![feature(
[INFO] [stdout] 203 | |     repr_simd,
[INFO] [stdout] 204 | |     const_fn,
[INFO] [stdout] 205 | |     platform_intrinsics,
[INFO] [stdout] ...   |
[INFO] [stdout] 215 | |     custom_inner_attributes
[INFO] [stdout] 216 | | )]
[INFO] [stdout]     | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `packed_simd`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "9d171e76b07e975fa1b304d109710afb33bf0f7dfae8398175e9d43ea73ec9ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d171e76b07e975fa1b304d109710afb33bf0f7dfae8398175e9d43ea73ec9ba", kill_on_drop: false }`
[INFO] [stdout] 9d171e76b07e975fa1b304d109710afb33bf0f7dfae8398175e9d43ea73ec9ba