[INFO] cloning repository https://github.com/rust-learning-examples/md2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-learning-examples/md2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-learning-examples%2Fmd2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-learning-examples%2Fmd2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b57c63414a7cae475e08399d71046e9da2f356a8
[INFO] documenting rust-learning-examples/md2 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-learning-examples%2Fmd2" "/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/rust-learning-examples/md2 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rust-learning-examples/md2
[INFO] finished tweaking git repo https://github.com/rust-learning-examples/md2
[INFO] tweaked toml for git repo https://github.com/rust-learning-examples/md2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/rust-learning-examples/md2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11d2e8243403ea292a9ed7a74121bc4d9d5d0d6e2f7d456005e137deefcf75ce
[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" "11d2e8243403ea292a9ed7a74121bc4d9d5d0d6e2f7d456005e137deefcf75ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11d2e8243403ea292a9ed7a74121bc4d9d5d0d6e2f7d456005e137deefcf75ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11d2e8243403ea292a9ed7a74121bc4d9d5d0d6e2f7d456005e137deefcf75ce", kill_on_drop: false }`
[INFO] [stdout] 11d2e8243403ea292a9ed7a74121bc4d9d5d0d6e2f7d456005e137deefcf75ce
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83168ed752e24b1c15d6b031c8d6d3598ccadf46bb926e0716eadb670e9e1fb0
[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" "83168ed752e24b1c15d6b031c8d6d3598ccadf46bb926e0716eadb670e9e1fb0", kill_on_drop: false }`
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking md2 v0.9.0
[INFO] [stderr]  Documenting md2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.83s
[INFO] running `Command { std: "docker" "inspect" "83168ed752e24b1c15d6b031c8d6d3598ccadf46bb926e0716eadb670e9e1fb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83168ed752e24b1c15d6b031c8d6d3598ccadf46bb926e0716eadb670e9e1fb0", kill_on_drop: false }`
[INFO] [stdout] 83168ed752e24b1c15d6b031c8d6d3598ccadf46bb926e0716eadb670e9e1fb0