[INFO] fetching crate openbrush 3.2.0...
[INFO] documenting openbrush-3.2.0 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate openbrush 3.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate openbrush 3.2.0 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 openbrush 3.2.0
[INFO] finished tweaking crates.io crate openbrush 3.2.0
[INFO] tweaked toml for crates.io crate openbrush 3.2.0 written to /workspace/builds/worker-0-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 }`
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[INFO] [stderr]   Downloaded ink_macro v4.3.0
[INFO] [stderr]   Downloaded subxt-lightclient v0.31.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] aa1ce9e6badd8185f257c07844a6c64e4280a12e8056d9fc2a1b348a2b6ce3fc
[INFO] running `Command { std: "docker" "start" "-a" "aa1ce9e6badd8185f257c07844a6c64e4280a12e8056d9fc2a1b348a2b6ce3fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa1ce9e6badd8185f257c07844a6c64e4280a12e8056d9fc2a1b348a2b6ce3fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa1ce9e6badd8185f257c07844a6c64e4280a12e8056d9fc2a1b348a2b6ce3fc", kill_on_drop: false }`
[INFO] [stdout] aa1ce9e6badd8185f257c07844a6c64e4280a12e8056d9fc2a1b348a2b6ce3fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f293f88b425228daa300356e6f98b26d8936ab19c869c9411edbcbb4ec49bdd5
[INFO] running `Command { std: "docker" "start" "-a" "f293f88b425228daa300356e6f98b26d8936ab19c869c9411edbcbb4ec49bdd5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
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[INFO] [stderr]    Compiling proc-macro-crate v2.0.0
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling obce-codegen v0.1.0
[INFO] [stderr]    Compiling parity-scale-codec-derive v3.6.9
[INFO] [stderr]    Compiling scale-info-derive v2.10.0
[INFO] [stderr]    Compiling scale-encode-derive v0.5.0
[INFO] [stderr]    Compiling scale-decode-derive v0.9.0
[INFO] [stderr]    Compiling obce-macro v0.1.0
[INFO] [stderr]     Checking parity-scale-codec v3.6.9
[INFO] [stderr]     Checking scale-info v2.10.0
[INFO] [stderr]     Checking impl-codec v0.6.0
[INFO] [stderr]     Checking scale-bits v0.4.0
[INFO] [stderr]     Checking primitive-types v0.12.2
[INFO] [stderr]     Checking scale-decode v0.9.0
[INFO] [stderr]     Checking scale-encode v0.5.0
[INFO] [stderr]     Checking ink_primitives v4.3.0
[INFO] [stderr]     Checking ink_metadata v4.3.0
[INFO] [stderr]     Checking ink_engine v4.3.0
[INFO] [stderr]     Checking ink_storage_traits v4.3.0
[INFO] [stderr]     Checking ink_env v4.3.0
[INFO] [stderr]    Compiling ink_codegen v4.3.0
[INFO] [stderr]    Compiling openbrush_lang_codegen v3.2.0
[INFO] [stderr]     Checking ink_storage v4.3.0
[INFO] [stderr]    Compiling openbrush_lang_macro v3.2.0
[INFO] [stderr]    Compiling ink_macro v4.3.0
[INFO] [stderr]     Checking ink v4.3.0
[INFO] [stderr]     Checking obce v0.1.0
[INFO] [stderr]     Checking openbrush_lang v3.2.0
[INFO] [stderr]     Checking pallet-assets-chain-extension v0.1.1
[INFO] [stderr]     Checking openbrush_contracts v3.2.0
[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/openbrush_contracts-3.2.0/src/lib.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | #![feature(min_specialization)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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 `openbrush_contracts` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "f293f88b425228daa300356e6f98b26d8936ab19c869c9411edbcbb4ec49bdd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f293f88b425228daa300356e6f98b26d8936ab19c869c9411edbcbb4ec49bdd5", kill_on_drop: false }`
[INFO] [stdout] f293f88b425228daa300356e6f98b26d8936ab19c869c9411edbcbb4ec49bdd5
