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# error kind ExecutionFailed
# pre-build errors command failed: exit status: 101
# rustc version rustc 1.97.0-nightly (e8e4541ff 2026-04-15)
# docs.rs version docsrs 0.0.0 (15f7e1e9dfac4fc5b7cc4abfd7682239002ba909 2026-04-08 )
# build log [INFO] adding target riscv32imc-unknown-none-elf for toolchain nightly [INFO] running `Command { std: CARGO_HOME="/home/cratesfyi/workspace-builder3/cargo-home" RUSTUP_HOME="/home/cratesfyi/workspace-builder3/rustup-home" "/home/cratesfyi/workspace-builder3/cargo-home/bin/rustup" "target" "add" "--toolchain" "nightly" "riscv32imc-unknown-none-elf", kill_on_drop: false }` [INFO] [stderr] info: component rust-std for target riscv32imc-unknown-none-elf is up to date [INFO] running `Command { std: "docker" "create" "-v" "/home/cratesfyi/workspace-builder3/builds/esp-alloc-0.10.0/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace-builder3/builds/esp-alloc-0.10.0/source:/opt/rustwide/workdir:ro,Z" "-v" "/home/cratesfyi/workspace-builder3/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/home/cratesfyi/workspace-builder3/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "6442450944" "--cpuset-cpus" "16-19" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "sleep" "infinity", 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] 87f5cc7db4390a02795767dc30308d42fc4a012bc81ddb8892b5089206f84aaa [INFO] running `Command { std: "docker" "start" "87f5cc7db4390a02795767dc30308d42fc4a012bc81ddb8892b5089206f84aaa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "DOCS_RS=1" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "--user" "1001:1001" "87f5cc7db4390a02795767dc30308d42fc4a012bc81ddb8892b5089206f84aaa" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "rustdoc" "--lib" "-Zrustdoc-map" "--features" "nightly" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--emit=invocation-specific\", \"--resource-suffix\", \"-20260415-1.97.0-nightly-e8e4541ff\", \"--static-root-path\", \"/-/rustdoc.static/\", \"--cap-lints\", \"warn\", \"--extern-html-root-takes-precedence\"]" "--offline" "-Zunstable-options" "--config=doc.extern-map.registries.crates-io=\"https://docs.rs/{pkg_name}/{version}/riscv32imc-unknown-none-elf\"" "-Zrustdoc-scrape-examples" "-j4" "--target" "riscv32imc-unknown-none-elf", kill_on_drop: false }` [INFO] [stderr] warning: target filter specified, but no targets matched; this is a no-op [INFO] [stderr] Compiling esp-sync v0.2.1 [INFO] [stderr] Compiling esp-alloc v0.10.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking esp-metadata-generated v0.4.0 [INFO] [stderr] Checking rlsf v0.2.2 [INFO] [stderr] error: failed to run custom build command for `esp-sync v0.2.1` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/esp-sync-95341c5142ba9dac/build-script-build` (exit status: 1) [INFO] [stderr] --- stderr [INFO] [stderr] Error: "Expected exactly one of the following features to be enabled: esp32, esp32c2, esp32c3, esp32c5, esp32c6, esp32c61, esp32h2, esp32s2, esp32s3" [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "stop" "-t" "1" "87f5cc7db4390a02795767dc30308d42fc4a012bc81ddb8892b5089206f84aaa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "87f5cc7db4390a02795767dc30308d42fc4a012bc81ddb8892b5089206f84aaa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "87f5cc7db4390a02795767dc30308d42fc4a012bc81ddb8892b5089206f84aaa", kill_on_drop: false }` [INFO] [stdout] 87f5cc7db4390a02795767dc30308d42fc4a012bc81ddb8892b5089206f84aaa