[INFO] fetching crate subprocess 0.2.6...
[INFO] documenting subprocess-0.2.6 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate subprocess 0.2.6 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate subprocess 0.2.6 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate subprocess 0.2.6
[INFO] finished tweaking crates.io crate subprocess 0.2.6
[INFO] tweaked toml for crates.io crate subprocess 0.2.6 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate subprocess 0.2.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d785fd5b82caf6a74888a54fe81ca109c73f8bee942c952de29916e1cbd7eec0
[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" "d785fd5b82caf6a74888a54fe81ca109c73f8bee942c952de29916e1cbd7eec0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d785fd5b82caf6a74888a54fe81ca109c73f8bee942c952de29916e1cbd7eec0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d785fd5b82caf6a74888a54fe81ca109c73f8bee942c952de29916e1cbd7eec0", kill_on_drop: false }`
[INFO] [stdout] d785fd5b82caf6a74888a54fe81ca109c73f8bee942c952de29916e1cbd7eec0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+beta-2020-10-09" "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] 3012841b8ce02701ff1481ec04e132dd406e3da4c48a49b540be519724b0cf52
[INFO] running `Command { std: "docker" "start" "-a" "3012841b8ce02701ff1481ec04e132dd406e3da4c48a49b540be519724b0cf52", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking subprocess v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting subprocess v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `popen`
[INFO] [stdout]   --> src/popen.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 37 | /// using the [`popen`] method of the [`Exec`] type.  Subprocesses
[INFO] [stdout]    |                ^^^^^^^ the module `popen` contains no item named `popen`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(broken_intra_doc_links)]` on by default
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `popen`
[INFO] [stdout]   --> src/popen.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 37 | /// using the [`popen`] method of the [`Exec`] type.  Subprocesses
[INFO] [stdout]    |                ^^^^^^^ the module `popen` contains no item named `popen`
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.36s
[INFO] running `Command { std: "docker" "inspect" "3012841b8ce02701ff1481ec04e132dd406e3da4c48a49b540be519724b0cf52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3012841b8ce02701ff1481ec04e132dd406e3da4c48a49b540be519724b0cf52", kill_on_drop: false }`
[INFO] [stdout] 3012841b8ce02701ff1481ec04e132dd406e3da4c48a49b540be519724b0cf52
