[INFO] cloning repository https://github.com/shackerd/palindrome
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shackerd/palindrome" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshackerd%2Fpalindrome", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshackerd%2Fpalindrome'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0bc127252213e0ac5f181758497f7af2b3d0bdbd
[INFO] checking shackerd/palindrome against master#d8810e3e2dab96778d20dd6d746ff95465515509 for pr-137033
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshackerd%2Fpalindrome" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shackerd/palindrome on toolchain d8810e3e2dab96778d20dd6d746ff95465515509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d8810e3e2dab96778d20dd6d746ff95465515509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shackerd/palindrome
[INFO] finished tweaking git repo https://github.com/shackerd/palindrome
[INFO] tweaked toml for git repo https://github.com/shackerd/palindrome written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/shackerd/palindrome 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" "+d8810e3e2dab96778d20dd6d746ff95465515509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+d8810e3e2dab96778d20dd6d746ff95465515509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 350381fba39a8b0289b6738b86c24bda129aa892cdb172b24fae0b8676771cc2
[INFO] running `Command { std: "docker" "start" "-a" "350381fba39a8b0289b6738b86c24bda129aa892cdb172b24fae0b8676771cc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "350381fba39a8b0289b6738b86c24bda129aa892cdb172b24fae0b8676771cc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "350381fba39a8b0289b6738b86c24bda129aa892cdb172b24fae0b8676771cc2", kill_on_drop: false }`
[INFO] [stdout] 350381fba39a8b0289b6738b86c24bda129aa892cdb172b24fae0b8676771cc2


command failed: exit status: 1

Error response from daemon: mkdir /var/lib/docker/overlay2/9a3fa9c609be7ea531d1d641d3a58fbfb66cca331ad162f6806b1992633a39e5/merged: no space left on device