[INFO] cloning repository https://github.com/rcore-os/serial-async
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rcore-os/serial-async" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frcore-os%2Fserial-async", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frcore-os%2Fserial-async'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 649bc7352dd3f4af51be7058bea8355a89c7e3a4
[INFO] documenting rcore-os/serial-async against 1.90.0 for beta-rustdoc-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frcore-os%2Fserial-async" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-6-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-6-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/rcore-os/serial-async
[INFO] finished tweaking git repo https://github.com/rcore-os/serial-async
[INFO] tweaked toml for git repo https://github.com/rcore-os/serial-async written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rcore-os/serial-async on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rcore-os/serial-async already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bare-test-macros v0.2.0
[INFO] [stderr]   Downloaded tock-registers v0.10.0
[INFO] [stderr]   Downloaded rdif-serial v0.1.3
[INFO] [stderr]   Downloaded volatile v0.4.6
[INFO] [stderr]   Downloaded rdif-def v0.2.0
[INFO] [stderr]   Downloaded rdif-clk v0.4.0
[INFO] [stderr]   Downloaded lenient_semver_version_builder v0.4.2
[INFO] [stderr]   Downloaded page-table-generic v0.6.0
[INFO] [stderr]   Downloaded cargo_metadata v0.20.0
[INFO] [stderr]   Downloaded rdrive v0.16.0
[INFO] [stderr]   Downloaded cargo-platform v0.2.0
[INFO] [stderr]   Downloaded somehal v0.3.11
[INFO] [stderr]   Downloaded kdef-pgtable v0.1.4
[INFO] [stderr]   Downloaded memory_addr v0.4.0
[INFO] [stderr]   Downloaded arm-gic-driver v0.15.8
[INFO] [stderr]   Downloaded bindeps-simple v0.2.5
[INFO] [stderr]   Downloaded smccc v0.2.2
[INFO] [stderr]   Downloaded fdt-parser v0.4.17
[INFO] [stderr]   Downloaded cargo-util-schemas v0.2.0
[INFO] [stderr]   Downloaded lenient_semver v0.4.2
[INFO] [stderr]   Downloaded heapless v0.9.1
[INFO] [stderr]   Downloaded kasm-aarch64 v0.2.0
[INFO] [stderr]   Downloaded rdif-serial v0.4.0
[INFO] [stderr]   Downloaded rust_decimal v1.37.2
[INFO] [stderr]   Downloaded sparreal-kernel v0.11.1
[INFO] [stderr]   Downloaded num-align v0.1.0
[INFO] [stderr]   Downloaded rdif-block v0.5.0
[INFO] [stderr]   Downloaded rdif-intc v0.12.0
[INFO] [stderr]   Downloaded rdif-base v0.6.0
[INFO] [stderr]   Downloaded trait-ffi v0.2.8
[INFO] [stderr]   Downloaded sparreal-macros v0.9.3
[INFO] [stderr]   Downloaded xattr v1.5.1
[INFO] [stderr]   Downloaded any-uart v0.2.12
[INFO] [stderr]   Downloaded pie-boot-if v0.7.0
[INFO] [stderr]   Downloaded pie-boot-loader-aarch64 v0.2.4
[INFO] [stderr] error: failed to parse manifest at `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pie-boot-loader-aarch64-0.2.4/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   the cargo feature `per-package-target` requires a nightly version of Cargo, but this is the `stable` channel
[INFO] [stderr]   See https://doc.rust-lang.org/book/appendix-07-nightly-rust.html for more information about Rust release channels.
[INFO] [stderr]   See https://doc.rust-lang.org/cargo/reference/unstable.html#per-package-target for more information about using this feature.


command failed: exit status: 101

    Updating crates.io index
 Downloading crates ...
  Downloaded bare-test-macros v0.2.0
  Downloaded tock-registers v0.10.0
  Downloaded rdif-serial v0.1.3
  Downloaded volatile v0.4.6
  Downloaded rdif-def v0.2.0
  Downloaded rdif-clk v0.4.0
  Downloaded lenient_semver_version_builder v0.4.2
  Downloaded page-table-generic v0.6.0
  Downloaded cargo_metadata v0.20.0
  Downloaded rdrive v0.16.0
  Downloaded cargo-platform v0.2.0
  Downloaded somehal v0.3.11
  Downloaded kdef-pgtable v0.1.4
  Downloaded memory_addr v0.4.0
  Downloaded arm-gic-driver v0.15.8
  Downloaded bindeps-simple v0.2.5
  Downloaded smccc v0.2.2
  Downloaded fdt-parser v0.4.17
  Downloaded cargo-util-schemas v0.2.0
  Downloaded lenient_semver v0.4.2
  Downloaded heapless v0.9.1
  Downloaded kasm-aarch64 v0.2.0
  Downloaded rdif-serial v0.4.0
  Downloaded rust_decimal v1.37.2
  Downloaded sparreal-kernel v0.11.1
  Downloaded num-align v0.1.0
  Downloaded rdif-block v0.5.0
  Downloaded rdif-intc v0.12.0
  Downloaded rdif-base v0.6.0
  Downloaded trait-ffi v0.2.8
  Downloaded sparreal-macros v0.9.3
  Downloaded xattr v1.5.1
  Downloaded any-uart v0.2.12
  Downloaded pie-boot-if v0.7.0
  Downloaded pie-boot-loader-aarch64 v0.2.4
error: failed to parse manifest at `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pie-boot-loader-aarch64-0.2.4/Cargo.toml`

Caused by:
  the cargo feature `per-package-target` requires a nightly version of Cargo, but this is the `stable` channel
  See https://doc.rust-lang.org/book/appendix-07-nightly-rust.html for more information about Rust release channels.
  See https://doc.rust-lang.org/cargo/reference/unstable.html#per-package-target for more information about using this feature.