[INFO] cloning repository https://github.com/matklad/learnOpenGL
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matklad/learnOpenGL" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2FlearnOpenGL", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2FlearnOpenGL'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 86980d3042916412885d4ff2059f59d2ef3a6603
[INFO] checking matklad/learnOpenGL against master#c1feb3eceef7d5f0126c309a87062cf413fe0a25 for pr-121053
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2FlearnOpenGL" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matklad/learnOpenGL on toolchain c1feb3eceef7d5f0126c309a87062cf413fe0a25
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c1feb3eceef7d5f0126c309a87062cf413fe0a25" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/matklad/learnOpenGL
[INFO] finished tweaking git repo https://github.com/matklad/learnOpenGL
[INFO] tweaked toml for git repo https://github.com/matklad/learnOpenGL written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/matklad/learnOpenGL 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" "+c1feb3eceef7d5f0126c309a87062cf413fe0a25" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gcc v0.3.28
[INFO] [stderr]   Downloaded image v0.6.1
[INFO] [stderr]   Downloaded log v0.3.6
[INFO] [stderr]   Downloaded num-traits v0.1.32
[INFO] [stderr]   Downloaded num-rational v0.1.32
[INFO] [stderr]   Downloaded dlib v0.3.0
[INFO] [stderr]   Downloaded wayland-sys v0.5.11
[INFO] [stderr]   Downloaded wayland-scanner v0.5.11
[INFO] [stderr]   Downloaded libloading v0.2.2
[INFO] [stderr]   Downloaded dylib v0.0.1
[INFO] [stderr]   Downloaded smallvec v0.1.7
[INFO] [stderr]   Downloaded gl v0.5.2
[INFO] [stderr]   Downloaded debug-builders v0.1.0
[INFO] [stderr]   Downloaded shared_library v0.1.4
[INFO] [stderr]   Downloaded osmesa-sys v0.0.5
[INFO] [stderr]   Downloaded xml-rs v0.3.4
[INFO] [stderr]   Downloaded gif v0.7.0
[INFO] [stderr]   Downloaded thread_local v0.2.6
[INFO] [stderr]   Downloaded cgmath v0.7.0
[INFO] [stderr] error: failed to parse manifest at `/workspace/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/cgmath-0.7.0/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   dependency (rustc-serialize) specified without providing a local path, Git repository, version, or workspace dependency to use
[ERROR] this task or one of its parent failed!
[ERROR] command failed: exit status: 101
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.