[INFO] cloning repository https://github.com/grantralls/advent-of-code-2015
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/grantralls/advent-of-code-2015" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrantralls%2Fadvent-of-code-2015", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrantralls%2Fadvent-of-code-2015'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 887243811c71c698cbea06c918c2e1f3e69c595e
[INFO] testing grantralls/advent-of-code-2015 against master#552a959051cebf8f88a8f558399baf733bec9ce0 for pr-136932
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrantralls%2Fadvent-of-code-2015" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/grantralls/advent-of-code-2015 on toolchain 552a959051cebf8f88a8f558399baf733bec9ce0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/grantralls/advent-of-code-2015
[INFO] finished tweaking git repo https://github.com/grantralls/advent-of-code-2015
[INFO] tweaked toml for git repo https://github.com/grantralls/advent-of-code-2015 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/grantralls/advent-of-code-2015 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" "+552a959051cebf8f88a8f558399baf733bec9ce0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+552a959051cebf8f88a8f558399baf733bec9ce0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d28aabcc5b26a98ea831417751c102847f301cbbbfecc8cd276e9a2cf26aab0a
[INFO] running `Command { std: "docker" "start" "-a" "d28aabcc5b26a98ea831417751c102847f301cbbbfecc8cd276e9a2cf26aab0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d28aabcc5b26a98ea831417751c102847f301cbbbfecc8cd276e9a2cf26aab0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d28aabcc5b26a98ea831417751c102847f301cbbbfecc8cd276e9a2cf26aab0a", kill_on_drop: false }`
[INFO] [stdout] d28aabcc5b26a98ea831417751c102847f301cbbbfecc8cd276e9a2cf26aab0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+552a959051cebf8f88a8f558399baf733bec9ce0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7ca3b9a7a67240fb35158c5c5bff7a0fa9b0b1456a4715be37c764f6f4eacfe
[INFO] running `Command { std: "docker" "start" "-a" "a7ca3b9a7a67240fb35158c5c5bff7a0fa9b0b1456a4715be37c764f6f4eacfe", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: unable to apply cgroup configuration: unable to start unit "docker-a7ca3b9a7a67240fb35158c5c5bff7a0fa9b0b1456a4715be37c764f6f4eacfe.scope" (properties [{Name:Description Value:"libcontainer container a7ca3b9a7a67240fb35158c5c5bff7a0fa9b0b1456a4715be37c764f6f4eacfe"} {Name:Slice Value:"system.slice"} {Name:Delegate Value:true} {Name:PIDs Value:@au [3343205]} {Name:MemoryAccounting Value:true} {Name:CPUAccounting Value:true} {Name:IOAccounting Value:true} {Name:TasksAccounting Value:true} {Name:DefaultDependencies Value:false}]): Message recipient disconnected from message bus without replying: unknown
[INFO] running `Command { std: "docker" "inspect" "a7ca3b9a7a67240fb35158c5c5bff7a0fa9b0b1456a4715be37c764f6f4eacfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7ca3b9a7a67240fb35158c5c5bff7a0fa9b0b1456a4715be37c764f6f4eacfe", kill_on_drop: false }`
[INFO] [stdout] a7ca3b9a7a67240fb35158c5c5bff7a0fa9b0b1456a4715be37c764f6f4eacfe