[INFO] fetching crate membuf 0.0.5...
[INFO] documenting membuf-0.0.5 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate membuf 0.0.5 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate membuf 0.0.5 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate membuf 0.0.5
[INFO] finished tweaking crates.io crate membuf 0.0.5
[INFO] tweaked toml for crates.io crate membuf 0.0.5 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d96f7185c5af5edcbae6e5ddf8008979ec75f04a91bc68218614302585ca120a
[INFO] running `Command { std: "docker" "start" "-a" "d96f7185c5af5edcbae6e5ddf8008979ec75f04a91bc68218614302585ca120a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d96f7185c5af5edcbae6e5ddf8008979ec75f04a91bc68218614302585ca120a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d96f7185c5af5edcbae6e5ddf8008979ec75f04a91bc68218614302585ca120a", kill_on_drop: false }`
[INFO] [stdout] d96f7185c5af5edcbae6e5ddf8008979ec75f04a91bc68218614302585ca120a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48a82219a784118ea4189a127b6e463da3d8232f79162fe7f4720c25a308bcef
[INFO] running `Command { std: "docker" "start" "-a" "48a82219a784118ea4189a127b6e463da3d8232f79162fe7f4720c25a308bcef", kill_on_drop: false }`
[INFO] [stderr]  Documenting membuf v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `raw_pointer_derive` has been removed: using derive with raw pointers is ok
[INFO] [stdout]  --> src/lib.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![allow(raw_pointer_derive)]
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::nonzero`
[INFO] [stdout]   --> src/lib.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | use core::nonzero::NonZero;
[INFO] [stdout]    |           ^^^^^^^ could not find `nonzero` in `core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::nonzero`
[INFO] [stdout]  --> src/alloc.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | use core::nonzero::NonZero;
[INFO] [stdout]   |           ^^^^^^^ could not find `nonzero` in `core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::rt::heap`
[INFO] [stdout]  --> src/alloc.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::rt::heap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ no `heap` in `rt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `membuf`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name membuf src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=75faae8d1f5584e3 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.0.5` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "48a82219a784118ea4189a127b6e463da3d8232f79162fe7f4720c25a308bcef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48a82219a784118ea4189a127b6e463da3d8232f79162fe7f4720c25a308bcef", kill_on_drop: false }`
[INFO] [stdout] 48a82219a784118ea4189a127b6e463da3d8232f79162fe7f4720c25a308bcef