[INFO] cloning repository https://github.com/deltavoid/blog_os_diy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/deltavoid/blog_os_diy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeltavoid%2Fblog_os_diy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeltavoid%2Fblog_os_diy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8c2cde900bc6d15188ec15e2b57374005dcf617d
[INFO] checking deltavoid/blog_os_diy against master#d8810e3e2dab96778d20dd6d746ff95465515509 for pr-137045
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeltavoid%2Fblog_os_diy" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/deltavoid/blog_os_diy on toolchain d8810e3e2dab96778d20dd6d746ff95465515509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d8810e3e2dab96778d20dd6d746ff95465515509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/deltavoid/blog_os_diy
[INFO] finished tweaking git repo https://github.com/deltavoid/blog_os_diy
[INFO] tweaked toml for git repo https://github.com/deltavoid/blog_os_diy written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/deltavoid/blog_os_diy 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" "+d8810e3e2dab96778d20dd6d746ff95465515509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[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 volatile v0.2.5
[INFO] [stderr]   Downloaded cpuio v0.2.0
[INFO] [stderr]   Downloaded os_bootinfo v0.2.1
[INFO] [stderr]   Downloaded pc-keyboard v0.3.1
[INFO] [stderr]   Downloaded uart_16550 v0.1.0
[INFO] [stderr]   Downloaded x86_64 v0.4.2
[INFO] [stderr]   Downloaded pic8259_simple v0.1.1
[INFO] [stderr]   Downloaded x86_64 v0.2.14
[INFO] [stderr]   Downloaded skeptic v0.5.0
[INFO] [stderr]   Downloaded font8x8 v0.2.4
[INFO] [stderr]   Downloaded pulldown-cmark v0.0.3
[INFO] [stderr]   Downloaded rand v0.4.5
[INFO] [stderr]   Downloaded fixedvec v0.2.3
[INFO] [stderr]   Downloaded bootloader v0.3.12
[INFO] [stderr] error: failed to parse manifest at `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/bootloader-0.3.12/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
    Updating crates.io index
    Blocking waiting for file lock on package cache
    Blocking waiting for file lock on package cache
 Downloading crates ...
  Downloaded volatile v0.2.5
  Downloaded cpuio v0.2.0
  Downloaded os_bootinfo v0.2.1
  Downloaded pc-keyboard v0.3.1
  Downloaded uart_16550 v0.1.0
  Downloaded x86_64 v0.4.2
  Downloaded pic8259_simple v0.1.1
  Downloaded x86_64 v0.2.14
  Downloaded skeptic v0.5.0
  Downloaded font8x8 v0.2.4
  Downloaded pulldown-cmark v0.0.3
  Downloaded rand v0.4.5
  Downloaded fixedvec v0.2.3
  Downloaded bootloader v0.3.12
error: failed to parse manifest at `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/bootloader-0.3.12/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.