[INFO] cloning repository https://github.com/mattdamon108/rust_front_matter_parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mattdamon108/rust_front_matter_parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattdamon108%2Frust_front_matter_parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattdamon108%2Frust_front_matter_parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 03417779ff1ec98088d2f692bf2073dba2cb7bdc
[INFO] documenting mattdamon108/rust_front_matter_parser against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattdamon108%2Frust_front_matter_parser" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mattdamon108/rust_front_matter_parser on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mattdamon108/rust_front_matter_parser
[INFO] finished tweaking git repo https://github.com/mattdamon108/rust_front_matter_parser
[INFO] tweaked toml for git repo https://github.com/mattdamon108/rust_front_matter_parser written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/mattdamon108/rust_front_matter_parser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28a33eed85303a0f6173ade41f3437b583460d69e336b18e453d5025d303d662
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "28a33eed85303a0f6173ade41f3437b583460d69e336b18e453d5025d303d662", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28a33eed85303a0f6173ade41f3437b583460d69e336b18e453d5025d303d662", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28a33eed85303a0f6173ade41f3437b583460d69e336b18e453d5025d303d662", kill_on_drop: false }`
[INFO] [stdout] 28a33eed85303a0f6173ade41f3437b583460d69e336b18e453d5025d303d662
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d2d7f9bba36e6fa1a07bdf98c8dcb71744f91f3b804e212497e699c443d753d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4d2d7f9bba36e6fa1a07bdf98c8dcb71744f91f3b804e212497e699c443d753d", kill_on_drop: false }`
[INFO] [stderr]  Documenting mdfmp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "4d2d7f9bba36e6fa1a07bdf98c8dcb71744f91f3b804e212497e699c443d753d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d2d7f9bba36e6fa1a07bdf98c8dcb71744f91f3b804e212497e699c443d753d", kill_on_drop: false }`
[INFO] [stdout] 4d2d7f9bba36e6fa1a07bdf98c8dcb71744f91f3b804e212497e699c443d753d