[INFO] cloning repository https://github.com/dzung-nm/mnist-conv-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dzung-nm/mnist-conv-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdzung-nm%2Fmnist-conv-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdzung-nm%2Fmnist-conv-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3f63375bfe5f660ef951e3059e1c817e85e6a8c
[INFO] checking dzung-nm/mnist-conv-rust against 656a9da186dacaf3bf8f7f7296a825d256cb4ae3 for pr-158915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdzung-nm%2Fmnist-conv-rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
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[INFO] started tweaking git repo https://github.com/dzung-nm/mnist-conv-rust
[INFO] finished tweaking git repo https://github.com/dzung-nm/mnist-conv-rust
[INFO] tweaked toml for git repo https://github.com/dzung-nm/mnist-conv-rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dzung-nm/mnist-conv-rust on toolchain 656a9da186dacaf3bf8f7f7296a825d256cb4ae3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+656a9da186dacaf3bf8f7f7296a825d256cb4ae3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dzung-nm/mnist-conv-rust 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" "+656a9da186dacaf3bf8f7f7296a825d256cb4ae3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: binary `cifar10_best` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /workspace/builds/worker-0-tc1/source/target/.../cifar10_best
[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 `cifar10-best`, convert the file stem
[INFO] [stderr]   |
[INFO] [stderr] 1 - src/bin/cifar10_best.rs
[INFO] [stderr] 1 + src/bin/cifar10-best.rs
[INFO] [stderr]   |
[INFO] [stderr] warning: binary `mnist_best` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /workspace/builds/worker-0-tc1/source/target/.../mnist_best
[INFO] [stderr]   |                                                  ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: to change the binary name to `mnist-best`, convert the file stem
[INFO] [stderr]   |
[INFO] [stderr] 1 - src/bin/mnist_best.rs
[INFO] [stderr] 1 + src/bin/mnist-best.rs
[INFO] [stderr]   |
[INFO] [stderr] warning: binary `mnist_lenet5` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /workspace/builds/worker-0-tc1/source/target/.../mnist_lenet5
[INFO] [stderr]   |                                                  ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: to change the binary name to `mnist-lenet5`, convert the file stem
[INFO] [stderr]   |
[INFO] [stderr] 1 - src/bin/mnist_lenet5.rs
[INFO] [stderr] 1 + src/bin/mnist-lenet5.rs
[INFO] [stderr]   |
[INFO] [stderr] warning: binary `mnist_nielsen` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /workspace/builds/worker-0-tc1/source/target/.../mnist_nielsen
[INFO] [stderr]   |                                                  ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: to change the binary name to `mnist-nielsen`, convert the file stem
[INFO] [stderr]   |
[INFO] [stderr] 1 - src/bin/mnist_nielsen.rs
[INFO] [stderr] 1 + src/bin/mnist-nielsen.rs
[INFO] [stderr]   |
[INFO] [stderr] warning: `simple-conv-network` (manifest) generated 4 warnings
[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
[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