[INFO] cloning repository https://github.com/selinaaavt/kvlab
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/selinaaavt/kvlab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fselinaaavt%2Fkvlab", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fselinaaavt%2Fkvlab'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9b2096601853f08239465ae3d93262ad9116e37d
[INFO] checking selinaaavt/kvlab against d8df82673d5911b6112a85bf91d9adefb2c66a1a for pr-162242
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fselinaaavt%2Fkvlab" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/selinaaavt/kvlab
[INFO] finished tweaking git repo https://github.com/selinaaavt/kvlab
[INFO] tweaked toml for git repo https://github.com/selinaaavt/kvlab written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/selinaaavt/kvlab on toolchain d8df82673d5911b6112a85bf91d9adefb2c66a1a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d8df82673d5911b6112a85bf91d9adefb2c66a1a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/selinaaavt/kvlab 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" "+d8df82673d5911b6112a85bf91d9adefb2c66a1a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: binary `crash_writer` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /workspace/builds/worker-6-tc1/source/target/.../crash_writer
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `crash-writer`, convert `bin.name`
[INFO] [stderr]   --> Cargo.toml:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 - name = "crash_writer"
[INFO] [stderr] 14 + name = "crash-writer"
[INFO] [stderr]    |
[INFO] [stderr] warning: binary `kvbench_mt` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /workspace/builds/worker-6-tc1/source/target/.../kvbench_mt
[INFO] [stderr]   |                                                  ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: to change the binary name to `kvbench-mt`, convert `bin.name`
[INFO] [stderr]  --> Cargo.toml:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 - name = "kvbench_mt"
[INFO] [stderr] 6 + name = "kvbench-mt"
[INFO] [stderr]   |
[INFO] [stderr] warning: `kvlab` (manifest) generated 2 warnings
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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