[INFO] cloning repository https://github.com/BenTheElder/slack-rs-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BenTheElder/slack-rs-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenTheElder%2Fslack-rs-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenTheElder%2Fslack-rs-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2f04a8cc51813eb415f5ef76b3604dee43153dcc
[INFO] checking BenTheElder/slack-rs-demo against master#fd0c901b00ee1e08a250039cdb90258603497e20 for pr-153692
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenTheElder%2Fslack-rs-demo" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/BenTheElder/slack-rs-demo
[INFO] finished tweaking git repo https://github.com/BenTheElder/slack-rs-demo
[INFO] tweaked toml for git repo https://github.com/BenTheElder/slack-rs-demo written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BenTheElder/slack-rs-demo on toolchain fd0c901b00ee1e08a250039cdb90258603497e20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fd0c901b00ee1e08a250039cdb90258603497e20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/BenTheElder/slack-rs-demo 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" "+fd0c901b00ee1e08a250039cdb90258603497e20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded time v0.1.14
[INFO] [stderr]   Downloaded openssl-sys v0.2.17
[INFO] [stderr]   Downloaded url v0.2.17
[INFO] [stderr]   Downloaded cookie v0.1.8
[INFO] [stderr]   Downloaded slack v0.2.5
[INFO] [stderr]   Downloaded mime v0.0.7
[INFO] [stderr]   Downloaded libc v0.1.0
[INFO] [stderr]   Downloaded log v0.1.10
[INFO] [stderr]   Downloaded bitflags v0.1.0
[INFO] [stderr]   Downloaded websocket v0.10.1
[INFO] [stderr]   Downloaded regex v0.1.10
[INFO] [stderr]   Downloaded pnacl-build-helper v1.3.1
[INFO] [stderr]   Downloaded unsafe-any v0.2.1
[INFO] [stderr]   Downloaded openssl v0.2.17
[INFO] [stderr]   Downloaded rustc-serialize v0.2.9
[INFO] [stderr]   Downloaded mucell v0.1.11
[INFO] [stderr]   Downloaded unicase v0.0.3
[INFO] [stderr]   Downloaded pkg-config v0.1.6
[INFO] [stderr]   Downloaded libressl-pnacl-sys v2.1.4
[INFO] [stderr] error: failed to parse manifest at `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libressl-pnacl-sys-2.1.4/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   library target names cannot contain hyphens: libressl-pnacl-sys


overridden task result to prepare-fail:unknown

Caused by:
    broken dependencies: 
    
    warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
        Updating crates.io index
     Downloading crates ...
      Downloaded time v0.1.14
      Downloaded openssl-sys v0.2.17
      Downloaded url v0.2.17
      Downloaded cookie v0.1.8
      Downloaded slack v0.2.5
      Downloaded mime v0.0.7
      Downloaded libc v0.1.0
      Downloaded log v0.1.10
      Downloaded bitflags v0.1.0
      Downloaded websocket v0.10.1
      Downloaded regex v0.1.10
      Downloaded pnacl-build-helper v1.3.1
      Downloaded unsafe-any v0.2.1
      Downloaded openssl v0.2.17
      Downloaded rustc-serialize v0.2.9
      Downloaded mucell v0.1.11
      Downloaded unicase v0.0.3
      Downloaded pkg-config v0.1.6
      Downloaded libressl-pnacl-sys v2.1.4
    error: failed to parse manifest at `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libressl-pnacl-sys-2.1.4/Cargo.toml`
    
    Caused by:
      library target names cannot contain hyphens: libressl-pnacl-sys