[INFO] fetching crate ra-ap-rustc_data_structures 0.20.0...
[INFO] testing ra-ap-rustc_data_structures-0.20.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate ra-ap-rustc_data_structures 0.20.0 into /workspace/builds/worker-1-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-1-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_index v0.20.0
[INFO] [stderr]   Downloaded ra-ap-rustc_index_macros v0.20.0
[INFO] [stderr]   Downloaded perf-event-open-sys v3.0.0
[INFO] [stderr]   Downloaded rustc-rayon-core v0.5.0
[INFO] [stderr]   Downloaded rustc-rayon v0.5.0
[INFO] [stderr]   Downloaded elsa v1.7.1
[INFO] [stderr]   Downloaded measureme v10.1.2
[INFO] [stderr]   Downloaded thin-vec v0.2.13
[INFO] [stderr]   Downloaded ra-ap-rustc_graphviz v0.20.0
[INFO] [stderr]   Downloaded ra-ap-rustc_arena v0.20.0
[INFO] [stderr]   Downloaded ra-ap-rustc_serialize v0.20.0
[INFO] [stderr]   Downloaded ra-ap-rustc_macros v0.20.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ed89118683c612d48e769e9587ed9391cd46af0002e299527a03ab38d8786f98
[INFO] running `Command { std: "docker" "start" "-a" "ed89118683c612d48e769e9587ed9391cd46af0002e299527a03ab38d8786f98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed89118683c612d48e769e9587ed9391cd46af0002e299527a03ab38d8786f98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed89118683c612d48e769e9587ed9391cd46af0002e299527a03ab38d8786f98", kill_on_drop: false }`
[INFO] [stdout] ed89118683c612d48e769e9587ed9391cd46af0002e299527a03ab38d8786f98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fc4947ea5c0eb6439ebdab42991e47b9bb6fb0981dbd8c2b436b38ae711549d
[INFO] running `Command { std: "docker" "start" "-a" "7fc4947ea5c0eb6439ebdab42991e47b9bb6fb0981dbd8c2b436b38ae711549d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.75
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling linux-raw-sys v0.4.12
[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]    Compiling thin-vec v0.2.13
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[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] 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" "7fc4947ea5c0eb6439ebdab42991e47b9bb6fb0981dbd8c2b436b38ae711549d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fc4947ea5c0eb6439ebdab42991e47b9bb6fb0981dbd8c2b436b38ae711549d", kill_on_drop: false }`
[INFO] [stdout] 7fc4947ea5c0eb6439ebdab42991e47b9bb6fb0981dbd8c2b436b38ae711549d
