[INFO] cloning repository https://github.com/ujjwal3067/MapReduce_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ujjwal3067/MapReduce_Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust'...
[INFO] [stderr] error: unable to write symref for HEAD: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/ujjwal3067/MapReduce_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ujjwal3067/MapReduce_Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust'...
[INFO] [stderr] error: unable to write symref for HEAD: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 2)
[INFO] cloning repository https://github.com/ujjwal3067/MapReduce_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ujjwal3067/MapReduce_Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust/refs/tags: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 3)
[INFO] cloning repository https://github.com/ujjwal3067/MapReduce_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ujjwal3067/MapReduce_Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust/refs/heads: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 4)
[INFO] cloning repository https://github.com/ujjwal3067/MapReduce_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ujjwal3067/MapReduce_Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust/refs/heads: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 5)
[INFO] cloning repository https://github.com/ujjwal3067/MapReduce_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ujjwal3067/MapReduce_Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust/refs/heads: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 6)
[INFO] cloning repository https://github.com/ujjwal3067/MapReduce_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ujjwal3067/MapReduce_Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust/refs: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 7)
[INFO] cloning repository https://github.com/ujjwal3067/MapReduce_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ujjwal3067/MapReduce_Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 725adb18388434c263f3272c647149975cea85cf
[INFO] checking ujjwal3067/MapReduce_Rust against master#aa067fb984d36462548bb785da221bfaf38253f0 for pr-122470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FMapReduce_Rust" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ujjwal3067/MapReduce_Rust on toolchain aa067fb984d36462548bb785da221bfaf38253f0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+aa067fb984d36462548bb785da221bfaf38253f0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ujjwal3067/MapReduce_Rust
[INFO] finished tweaking git repo https://github.com/ujjwal3067/MapReduce_Rust
[INFO] tweaked toml for git repo https://github.com/ujjwal3067/MapReduce_Rust written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ujjwal3067/MapReduce_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" "+aa067fb984d36462548bb785da221bfaf38253f0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+aa067fb984d36462548bb785da221bfaf38253f0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 091ea3fe2c45b52ac41b91e4730ca414b5154ccbcef7db5df05b8e7593d77866
[INFO] running `Command { std: "docker" "start" "-a" "091ea3fe2c45b52ac41b91e4730ca414b5154ccbcef7db5df05b8e7593d77866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "091ea3fe2c45b52ac41b91e4730ca414b5154ccbcef7db5df05b8e7593d77866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "091ea3fe2c45b52ac41b91e4730ca414b5154ccbcef7db5df05b8e7593d77866", kill_on_drop: false }`
[INFO] [stdout] 091ea3fe2c45b52ac41b91e4730ca414b5154ccbcef7db5df05b8e7593d77866
[ERROR] this task or one of its parent failed!
[ERROR] command failed: exit status: 1
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.