[INFO] cloning repository https://github.com/tembolo1284/json_flattener_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tembolo1284/json_flattener_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftembolo1284%2Fjson_flattener_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftembolo1284%2Fjson_flattener_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eac0f1ba0a24a9641ce822b9733e2fe6bb230a0d
[INFO] checking tembolo1284/json_flattener_rust against master#9d28fe39763974a96d61232e96ac856735e4cdd6 for pr-139624
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftembolo1284%2Fjson_flattener_rust" "/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/tembolo1284/json_flattener_rust on toolchain 9d28fe39763974a96d61232e96ac856735e4cdd6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9d28fe39763974a96d61232e96ac856735e4cdd6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tembolo1284/json_flattener_rust
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/tembolo1284/json_flattener_rust
[INFO] tweaked toml for git repo https://github.com/tembolo1284/json_flattener_rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tembolo1284/json_flattener_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" "+9d28fe39763974a96d61232e96ac856735e4cdd6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9d28fe39763974a96d61232e96ac856735e4cdd6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c7182ed0a65b2fb7bf92466220197f3d276217aaf63a4356f43d7a1ea1e0551
[INFO] running `Command { std: "docker" "start" "-a" "1c7182ed0a65b2fb7bf92466220197f3d276217aaf63a4356f43d7a1ea1e0551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c7182ed0a65b2fb7bf92466220197f3d276217aaf63a4356f43d7a1ea1e0551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c7182ed0a65b2fb7bf92466220197f3d276217aaf63a4356f43d7a1ea1e0551", kill_on_drop: false }`
[INFO] [stdout] 1c7182ed0a65b2fb7bf92466220197f3d276217aaf63a4356f43d7a1ea1e0551
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9d28fe39763974a96d61232e96ac856735e4cdd6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23131625f6f0bc5a77a320ca5e455ad36446204feb5c5514ee541fe7ed223146
[INFO] running `Command { std: "docker" "start" "-a" "23131625f6f0bc5a77a320ca5e455ad36446204feb5c5514ee541fe7ed223146", 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: error during container init: error mounting "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target" to rootfs at "/opt/rustwide/target": mkdir /var/lib/docker/overlay2/78afd703b28a5f0eb8d3d7e1208390e7aecac5f5c94d8d7f8350e68da3dd427b/merged/opt/rustwide/target: no space left on device: unknown
[INFO] running `Command { std: "docker" "inspect" "23131625f6f0bc5a77a320ca5e455ad36446204feb5c5514ee541fe7ed223146", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23131625f6f0bc5a77a320ca5e455ad36446204feb5c5514ee541fe7ed223146", kill_on_drop: false }`
[INFO] [stdout] 23131625f6f0bc5a77a320ca5e455ad36446204feb5c5514ee541fe7ed223146