[INFO] fetching crate x86test-macro 0.0.5...
[INFO] documenting x86test-macro-0.0.5 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate x86test-macro 0.0.5 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate x86test-macro 0.0.5 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate x86test-macro 0.0.5
[INFO] finished tweaking crates.io crate x86test-macro 0.0.5
[INFO] tweaked toml for crates.io crate x86test-macro 0.0.5 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded x86test-types v0.0.5
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "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] 82f81479945965ab7de6b3884c6fc95393c747d2f4a86c01adefe160c1c00da5
[INFO] running `Command { std: "docker" "start" "-a" "82f81479945965ab7de6b3884c6fc95393c747d2f4a86c01adefe160c1c00da5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82f81479945965ab7de6b3884c6fc95393c747d2f4a86c01adefe160c1c00da5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82f81479945965ab7de6b3884c6fc95393c747d2f4a86c01adefe160c1c00da5", kill_on_drop: false }`
[INFO] [stdout] 82f81479945965ab7de6b3884c6fc95393c747d2f4a86c01adefe160c1c00da5
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "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] c77f12dc38058701c09e0996aa3bb56a3ea163b596620c400754528b1abe3ce3
[INFO] running `Command { std: "docker" "start" "-a" "c77f12dc38058701c09e0996aa3bb56a3ea163b596620c400754528b1abe3ce3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling x86 v0.47.0
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking raw-cpuid v10.3.0
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking syn v0.15.44
[INFO] [stderr]     Checking x86test-types v0.0.5
[INFO] [stderr]  Documenting x86test-macro v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(proc_macro_diagnostic)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown attribute `no-run`. Did you mean `no_run`?
[INFO] [stdout]    --> src/lib.rs:64:1
[INFO] [stdout]     |
[INFO] [stdout] 64  | / /// The `x86test` macro adds and initializes a `X86TestFn` struct for
[INFO] [stdout] 65  | | /// every test function. That `X86TestFn` in turn is annotated with
[INFO] [stdout] 66  | | /// `#[test_case]` therefore all these structs are aggregated with
[INFO] [stdout] 67  | | /// by the custom test framework runner which is declared in `runner.rs`.
[INFO] [stdout] ...   |
[INFO] [stdout] 104 | | /// };
[INFO] [stdout] 105 | | /// ```
[INFO] [stdout]     | |_______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(rustdoc::invalid_codeblock_attributes)]` on by default
[INFO] [stdout]     = help: the code block will either not be tested if not marked as a rust one or will be run (which you might not want)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `x86test-macro`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type proc-macro --crate-name x86test_macro src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=083ea48184a15ec8 -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-42b8f402e5615b33.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-45a3d718982da057.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-7b8d14c90188affa.rmeta --extern x86test_types=/opt/rustwide/target/debug/deps/libx86test_types-6aff41e9522142f0.rmeta --extern proc_macro --cap-lints=warn --crate-version 0.0.5` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "c77f12dc38058701c09e0996aa3bb56a3ea163b596620c400754528b1abe3ce3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c77f12dc38058701c09e0996aa3bb56a3ea163b596620c400754528b1abe3ce3", kill_on_drop: false }`
[INFO] [stdout] c77f12dc38058701c09e0996aa3bb56a3ea163b596620c400754528b1abe3ce3