[INFO] fetching crate ra-ap-rustc_data_structures 0.20.0...
[INFO] documenting ra-ap-rustc_data_structures-0.20.0 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate ra-ap-rustc_data_structures 0.20.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate ra-ap-rustc_data_structures 0.20.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ra-ap-rustc_data_structures 0.20.0
[INFO] finished tweaking crates.io crate ra-ap-rustc_data_structures 0.20.0
[INFO] tweaked toml for crates.io crate ra-ap-rustc_data_structures 0.20.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ra-ap-rustc_arena v0.20.0
[INFO] [stderr]   Downloaded ra-ap-rustc_index_macros v0.20.0
[INFO] [stderr]   Downloaded ra-ap-rustc_graphviz v0.20.0
[INFO] [stderr]   Downloaded perf-event-open-sys v3.0.0
[INFO] [stderr]   Downloaded elsa v1.7.1
[INFO] [stderr]   Downloaded ra-ap-rustc_index v0.20.0
[INFO] [stderr]   Downloaded ra-ap-rustc_macros v0.20.0
[INFO] [stderr]   Downloaded measureme v10.1.2
[INFO] [stderr]   Downloaded rustc-rayon v0.5.0
[INFO] [stderr]   Downloaded rustc-rayon-core v0.5.0
[INFO] [stderr]   Downloaded thin-vec v0.2.13
[INFO] [stderr]   Downloaded ra-ap-rustc_serialize v0.20.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63346c513bfab60dcd4a8d935c2bc5c10dbd5027180f4af5d32b7b43ff46dc55
[INFO] running `Command { std: "docker" "start" "-a" "63346c513bfab60dcd4a8d935c2bc5c10dbd5027180f4af5d32b7b43ff46dc55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63346c513bfab60dcd4a8d935c2bc5c10dbd5027180f4af5d32b7b43ff46dc55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63346c513bfab60dcd4a8d935c2bc5c10dbd5027180f4af5d32b7b43ff46dc55", kill_on_drop: false }`
[INFO] [stdout] 63346c513bfab60dcd4a8d935c2bc5c10dbd5027180f4af5d32b7b43ff46dc55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d41aa565f57ca1064e2a7b6e3579b58b2f21cc450f3d641b21636e2bcb38654
[INFO] running `Command { std: "docker" "start" "-a" "5d41aa565f57ca1064e2a7b6e3579b58b2f21cc450f3d641b21636e2bcb38654", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking thin-vec v0.2.13
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking linux-raw-sys v0.4.12
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking perf-event-open-sys v3.0.0
[INFO] [stderr]     Checking memmap2 v0.2.3
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/smallvec-1.11.2/src/lib.rs:96:37
[INFO] [stdout]    |
[INFO] [stdout] 96 | #![cfg_attr(feature = "may_dangle", feature(dropck_eyepatch))]
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking fastrand v2.0.1
[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]     Checking either v1.9.0
[INFO] [stderr] error: could not compile `smallvec` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5d41aa565f57ca1064e2a7b6e3579b58b2f21cc450f3d641b21636e2bcb38654", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d41aa565f57ca1064e2a7b6e3579b58b2f21cc450f3d641b21636e2bcb38654", kill_on_drop: false }`
[INFO] [stdout] 5d41aa565f57ca1064e2a7b6e3579b58b2f21cc450f3d641b21636e2bcb38654
