[INFO] fetching crate pinar 0.1.0...
[INFO] documenting pinar-0.1.0 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate pinar 0.1.0 into /workspace/builds/worker-113/source
[INFO] validating manifest of crates.io crate pinar 0.1.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pinar 0.1.0
[INFO] finished tweaking crates.io crate pinar 0.1.0
[INFO] tweaked toml for crates.io crate pinar 0.1.0 written to /workspace/builds/worker-113/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--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 pinar-derive v0.1.0
[INFO] [stderr]   Downloaded pinar-napi-sys v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24f17cf7a7cf557f319a26bf3cc616031742bdb3380ea033cef65f58821b8d26
[INFO] running `Command { std: "docker" "start" "-a" "24f17cf7a7cf557f319a26bf3cc616031742bdb3380ea033cef65f58821b8d26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24f17cf7a7cf557f319a26bf3cc616031742bdb3380ea033cef65f58821b8d26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24f17cf7a7cf557f319a26bf3cc616031742bdb3380ea033cef65f58821b8d26", kill_on_drop: false }`
[INFO] [stdout] 24f17cf7a7cf557f319a26bf3cc616031742bdb3380ea033cef65f58821b8d26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5af14c36adf179b4bc8c4c95fa45d30b773b3bd7b4688783592d24778c3e4677
[INFO] running `Command { std: "docker" "start" "-a" "5af14c36adf179b4bc8c4c95fa45d30b773b3bd7b4688783592d24778c3e4677", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking gimli v0.25.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking rustc-demangle v0.1.20
[INFO] [stderr]    Compiling pinar-napi-sys v0.1.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]     Checking object v0.26.0
[INFO] [stderr]     Checking addr2line v0.16.0
[INFO] [stderr]    Compiling pinar-derive v0.1.0
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]  Documenting pinar v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(core_intrinsics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 `pinar`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type cdylib --crate-name pinar src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="pinar-derive"' --cfg 'feature="pinar-serde"' --cfg 'feature="serde"' --cfg 'feature="serde_derive"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern failure=/opt/rustwide/target/debug/deps/libfailure-537f9e48e8e2277a.rmeta --extern pinar_derive=/opt/rustwide/target/debug/deps/libpinar_derive-497cd1b954912d0a.so --extern napi_sys=/opt/rustwide/target/debug/deps/libpinar_napi_sys-646144d1a127c8fb.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-6a5809dcce96c926.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-2799fcdcc706ff71.so --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "5af14c36adf179b4bc8c4c95fa45d30b773b3bd7b4688783592d24778c3e4677", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5af14c36adf179b4bc8c4c95fa45d30b773b3bd7b4688783592d24778c3e4677", kill_on_drop: false }`
[INFO] [stdout] 5af14c36adf179b4bc8c4c95fa45d30b773b3bd7b4688783592d24778c3e4677
