[INFO] cloning repository https://github.com/hhatto/wwup-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hhatto/wwup-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhhatto%2Fwwup-in-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhhatto%2Fwwup-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7ef78053e5a0447048fafc7824dd7adb64c60c12
[INFO] documenting hhatto/wwup-in-rust 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%2Fhhatto%2Fwwup-in-rust" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hhatto/wwup-in-rust 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/hhatto/wwup-in-rust
[INFO] finished tweaking git repo https://github.com/hhatto/wwup-in-rust
[INFO] tweaked toml for git repo https://github.com/hhatto/wwup-in-rust written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/hhatto/wwup-in-rust 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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e09afad1f40c872dcc9ba4e3812b665a5243bd16e0c88a6c0b5839e57fbf7bc3
[INFO] running `Command { std: "docker" "start" "-a" "e09afad1f40c872dcc9ba4e3812b665a5243bd16e0c88a6c0b5839e57fbf7bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e09afad1f40c872dcc9ba4e3812b665a5243bd16e0c88a6c0b5839e57fbf7bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e09afad1f40c872dcc9ba4e3812b665a5243bd16e0c88a6c0b5839e57fbf7bc3", kill_on_drop: false }`
[INFO] [stdout] e09afad1f40c872dcc9ba4e3812b665a5243bd16e0c88a6c0b5839e57fbf7bc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fbd452711d6c3dcebdb0116e6234ddde7861d956e6f836bb6a1e1d5bb6107e25
[INFO] running `Command { std: "docker" "start" "-a" "fbd452711d6c3dcebdb0116e6234ddde7861d956e6f836bb6a1e1d5bb6107e25", kill_on_drop: false }`
[INFO] [stderr]     Checking bit-vec v0.4.3
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking nix v0.8.1
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]     Checking bit-set v0.4.0
[INFO] [stderr]     Checking chan v0.1.19
[INFO] [stderr]     Checking chan-signal v0.2.0
[INFO] [stderr]     Checking prctl v1.0.0
[INFO] [stderr]  Documenting wwup v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `wwup`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name 4_processes_have_parents src/4_processes_have_parents.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=27c4185b7961bdae -L dependency=/opt/rustwide/target/debug/deps --extern chan=/opt/rustwide/target/debug/deps/libchan-261e55bcd869bed4.rmeta --extern chan_signal=/opt/rustwide/target/debug/deps/libchan_signal-086c6d36a0d54f35.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-f59e8d5921af13df.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-0ee2180471c3f8d9.rmeta --extern prctl=/opt/rustwide/target/debug/deps/libprctl-8e94f45e656e9d51.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not document `wwup`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name 9_processes_have_names src/9_processes_have_names.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=9f6b92297196ae32 -L dependency=/opt/rustwide/target/debug/deps --extern chan=/opt/rustwide/target/debug/deps/libchan-261e55bcd869bed4.rmeta --extern chan_signal=/opt/rustwide/target/debug/deps/libchan_signal-086c6d36a0d54f35.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-f59e8d5921af13df.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-0ee2180471c3f8d9.rmeta --extern prctl=/opt/rustwide/target/debug/deps/libprctl-8e94f45e656e9d51.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `wwup`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name 17_processes_can_communicate src/17_processes_can_communicate.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=02ca22bbad7fa425 -L dependency=/opt/rustwide/target/debug/deps --extern chan=/opt/rustwide/target/debug/deps/libchan-261e55bcd869bed4.rmeta --extern chan_signal=/opt/rustwide/target/debug/deps/libchan_signal-086c6d36a0d54f35.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-f59e8d5921af13df.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-0ee2180471c3f8d9.rmeta --extern prctl=/opt/rustwide/target/debug/deps/libprctl-8e94f45e656e9d51.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `wwup`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name 15_zombie_processes src/15_zombie_processes.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=8e12460df262fa14 -L dependency=/opt/rustwide/target/debug/deps --extern chan=/opt/rustwide/target/debug/deps/libchan-261e55bcd869bed4.rmeta --extern chan_signal=/opt/rustwide/target/debug/deps/libchan_signal-086c6d36a0d54f35.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-f59e8d5921af13df.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-0ee2180471c3f8d9.rmeta --extern prctl=/opt/rustwide/target/debug/deps/libprctl-8e94f45e656e9d51.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `wwup`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name 5_processes_have_file_descriptors src/5_processes_have_file_descriptors.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=3f4cc96621b2f88d -L dependency=/opt/rustwide/target/debug/deps --extern chan=/opt/rustwide/target/debug/deps/libchan-261e55bcd869bed4.rmeta --extern chan_signal=/opt/rustwide/target/debug/deps/libchan_signal-086c6d36a0d54f35.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-f59e8d5921af13df.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-0ee2180471c3f8d9.rmeta --extern prctl=/opt/rustwide/target/debug/deps/libprctl-8e94f45e656e9d51.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `wwup`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name 3_processes_have_ids src/3_processes_have_ids.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=7490453b3745858c -L dependency=/opt/rustwide/target/debug/deps --extern chan=/opt/rustwide/target/debug/deps/libchan-261e55bcd869bed4.rmeta --extern chan_signal=/opt/rustwide/target/debug/deps/libchan_signal-086c6d36a0d54f35.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-f59e8d5921af13df.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-0ee2180471c3f8d9.rmeta --extern prctl=/opt/rustwide/target/debug/deps/libprctl-8e94f45e656e9d51.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "fbd452711d6c3dcebdb0116e6234ddde7861d956e6f836bb6a1e1d5bb6107e25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbd452711d6c3dcebdb0116e6234ddde7861d956e6f836bb6a1e1d5bb6107e25", kill_on_drop: false }`
[INFO] [stdout] fbd452711d6c3dcebdb0116e6234ddde7861d956e6f836bb6a1e1d5bb6107e25