[INFO] cloning repository https://github.com/ambicuity/course-computer-science
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ambicuity/course-computer-science" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fambicuity%2Fcourse-computer-science", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fambicuity%2Fcourse-computer-science'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c7d42e0defeacc75b85a78e61eb4f2b2ac1a3c2c
[INFO] checking ambicuity/course-computer-science against 8d1a76430406c877b35d0b627e7f796dcf0dfeca+rustflags=-Aunfulfilled-lint-expectations for pr-163637
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fambicuity%2Fcourse-computer-science" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
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[INFO] started tweaking git repo https://github.com/ambicuity/course-computer-science
[INFO] finished tweaking git repo https://github.com/ambicuity/course-computer-science
[INFO] tweaked toml for git repo https://github.com/ambicuity/course-computer-science written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ambicuity/course-computer-science on toolchain 8d1a76430406c877b35d0b627e7f796dcf0dfeca
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d1a76430406c877b35d0b627e7f796dcf0dfeca" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ambicuity/course-computer-science 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" "+8d1a76430406c877b35d0b627e7f796dcf0dfeca" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused field `authors` in `workspace.package`
[INFO] [stderr]   --> Cargo.toml:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | authors = ["Ritesh Rana <contact@riteshrana.engineer>"]
[INFO] [stderr]    | ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_workspace_package_fields` is set to `warn` by default
[INFO] [stderr] help: consider removing the field `workspace.package.authors`
[INFO] [stderr] warning: unused field `edition` in `workspace.package`
[INFO] [stderr]   --> Cargo.toml:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | edition = "2021"
[INFO] [stderr]    | ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the field `workspace.package.edition`
[INFO] [stderr] warning: unused field `license` in `workspace.package`
[INFO] [stderr]   --> Cargo.toml:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | license = "MIT"
[INFO] [stderr]    | ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the field `workspace.package.license`
[INFO] [stderr] warning: workspace (manifest) generated 3 warnings
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds


overridden task result to prepare-fail:timeout

Caused by:
    0: uncategorized prepare error
    1: no output for 300 seconds