[INFO] updating cached repository https://github.com/mchlrhw/rust-containers-from-scratch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 044a3c8bce0ffc48dbd1b40babf33a568c8e8898
[INFO] documenting mchlrhw/rust-containers-from-scratch against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmchlrhw%2Frust-containers-from-scratch" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mchlrhw/rust-containers-from-scratch on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mchlrhw/rust-containers-from-scratch
[INFO] finished tweaking git repo https://github.com/mchlrhw/rust-containers-from-scratch
[INFO] tweaked toml for git repo https://github.com/mchlrhw/rust-containers-from-scratch written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/mchlrhw/rust-containers-from-scratch already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e45f391f1d0a76c83b449db3cb4009c2b45d23445b79654743d52d70a9a8571
[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" "5e45f391f1d0a76c83b449db3cb4009c2b45d23445b79654743d52d70a9a8571", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e45f391f1d0a76c83b449db3cb4009c2b45d23445b79654743d52d70a9a8571", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e45f391f1d0a76c83b449db3cb4009c2b45d23445b79654743d52d70a9a8571", kill_on_drop: false }`
[INFO] [stdout] 5e45f391f1d0a76c83b449db3cb4009c2b45d23445b79654743d52d70a9a8571
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f6ede4549ca9f0d0b4c5555fbc673b003777dc7ecc18e7d144550d6d08240b77
[INFO] running `Command { std: "docker" "start" "-a" "f6ede4549ca9f0d0b4c5555fbc673b003777dc7ecc18e7d144550d6d08240b77", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking nix v0.11.0
[INFO] [stderr]     Checking unshare v0.5.0
[INFO] [stderr]  Documenting cfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.25s
[INFO] running `Command { std: "docker" "inspect" "f6ede4549ca9f0d0b4c5555fbc673b003777dc7ecc18e7d144550d6d08240b77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6ede4549ca9f0d0b4c5555fbc673b003777dc7ecc18e7d144550d6d08240b77", kill_on_drop: false }`
[INFO] [stdout] f6ede4549ca9f0d0b4c5555fbc673b003777dc7ecc18e7d144550d6d08240b77