[INFO] fetching crate bulk_allocator 0.1.0...
[INFO] documenting bulk_allocator-0.1.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate bulk_allocator 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate bulk_allocator 0.1.0 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 crates.io crate bulk_allocator 0.1.0
[INFO] finished tweaking crates.io crate bulk_allocator 0.1.0
[INFO] tweaked toml for crates.io crate bulk_allocator 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] c9fe93a8e5db05b571ac5153ce2eb875bd22c6cfa63bd2e75bec8d25fda9bfa3
[INFO] running `Command { std: "docker" "start" "-a" "c9fe93a8e5db05b571ac5153ce2eb875bd22c6cfa63bd2e75bec8d25fda9bfa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9fe93a8e5db05b571ac5153ce2eb875bd22c6cfa63bd2e75bec8d25fda9bfa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9fe93a8e5db05b571ac5153ce2eb875bd22c6cfa63bd2e75bec8d25fda9bfa3", kill_on_drop: false }`
[INFO] [stdout] c9fe93a8e5db05b571ac5153ce2eb875bd22c6cfa63bd2e75bec8d25fda9bfa3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c13f4906c88aa70e8bb26ab71db8acfa00741356d271d480affdaaab3bddc5ea
[INFO] running `Command { std: "docker" "start" "-a" "c13f4906c88aa70e8bb26ab71db8acfa00741356d271d480affdaaab3bddc5ea", kill_on_drop: false }`
[INFO] [stderr]  Documenting bulk_allocator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `core::alloc::AllocInit`, `core::alloc::MemoryBlock`
[INFO] [stdout]   --> src/backend.rs:32:29
[INFO] [stdout]    |
[INFO] [stdout] 32 | use core::alloc::{AllocErr, AllocInit, AllocRef, Layout, MemoryBlock};
[INFO] [stdout]    |                             ^^^^^^^^^                    ^^^^^^^^^^^ no `MemoryBlock` in `alloc`
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             no `AllocInit` in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `core::alloc::AllocInit`, `core::alloc::MemoryBlock`
[INFO] [stdout]   --> src/bulk_allocator.rs:37:29
[INFO] [stdout]    |
[INFO] [stdout] 37 | use core::alloc::{AllocErr, AllocInit, AllocRef, Layout, MemoryBlock};
[INFO] [stdout]    |                             ^^^^^^^^^                    ^^^^^^^^^^^ no `MemoryBlock` in `alloc`
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             no `AllocInit` in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::alloc::MemoryBlock`
[INFO] [stdout]   --> src/cache_chain.rs:35:27
[INFO] [stdout]    |
[INFO] [stdout] 35 | use core::alloc::{Layout, MemoryBlock};
[INFO] [stdout]    |                           ^^^^^^^^^^^ no `MemoryBlock` in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `core::alloc::AllocInit`, `core::alloc::MemoryBlock`
[INFO] [stdout]   --> src/layout_bulk_allocator.rs:36:29
[INFO] [stdout]    |
[INFO] [stdout] 36 | use core::alloc::{AllocErr, AllocInit, AllocRef, Layout, MemoryBlock};
[INFO] [stdout]    |                             ^^^^^^^^^                    ^^^^^^^^^^^ no `MemoryBlock` in `alloc`
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             no `AllocInit` in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::alloc::MemoryBlock`
[INFO] [stdout]   --> src/lib.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | use core::alloc::MemoryBlock;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^ no `MemoryBlock` in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:32:1
[INFO] [stdout]    |
[INFO] [stdout] 32 | #![feature(allocator_api, external_doc)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `bulk_allocator`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name bulk_allocator src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "c13f4906c88aa70e8bb26ab71db8acfa00741356d271d480affdaaab3bddc5ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c13f4906c88aa70e8bb26ab71db8acfa00741356d271d480affdaaab3bddc5ea", kill_on_drop: false }`
[INFO] [stdout] c13f4906c88aa70e8bb26ab71db8acfa00741356d271d480affdaaab3bddc5ea