[INFO] cloning repository https://github.com/luojia65/simd-kernel-lab
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luojia65/simd-kernel-lab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluojia65%2Fsimd-kernel-lab", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluojia65%2Fsimd-kernel-lab'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8fe612da36bd760298c31437ca34f83de65a17a8
[INFO] checking luojia65/simd-kernel-lab against master#8a65ee08296b36342bf7c3cdc15312ccbc357227 for pr-142704
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluojia65%2Fsimd-kernel-lab" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luojia65/simd-kernel-lab on toolchain 8a65ee08296b36342bf7c3cdc15312ccbc357227
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/luojia65/simd-kernel-lab
[INFO] finished tweaking git repo https://github.com/luojia65/simd-kernel-lab
[INFO] tweaked toml for git repo https://github.com/luojia65/simd-kernel-lab written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/luojia65/simd-kernel-lab 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" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded spin v0.4.10
[INFO] [stderr]   Downloaded skeptic v0.5.0
[INFO] [stderr]   Downloaded font8x8 v0.2.4
[INFO] [stderr]   Downloaded xmas-elf v0.6.2
[INFO] [stderr]   Downloaded volatile v0.2.6
[INFO] [stderr]   Downloaded bootloader v0.3.13
[INFO] [stderr] error: failed to parse manifest at `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/bootloader-0.3.13/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   the cargo feature `publish-lockfile` has been removed in the 1.37 release
[INFO] [stderr] 
[INFO] [stderr]   This package cannot be used with this version of Cargo, as the unstable feature `publish-lockfile` is no longer supported.
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#publish-lockfile for more information about using this feature.


command failed: exit status: 101

    Blocking waiting for file lock on package cache
    Blocking waiting for file lock on package cache
 Downloading crates ...
  Downloaded spin v0.4.10
  Downloaded skeptic v0.5.0
  Downloaded font8x8 v0.2.4
  Downloaded xmas-elf v0.6.2
  Downloaded volatile v0.2.6
  Downloaded bootloader v0.3.13
error: failed to parse manifest at `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/bootloader-0.3.13/Cargo.toml`

Caused by:
  the cargo feature `publish-lockfile` has been removed in the 1.37 release

  This package cannot be used with this version of Cargo, as the unstable feature `publish-lockfile` is no longer supported.
  See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#publish-lockfile for more information about using this feature.