[INFO] cloning repository https://github.com/mayshukla/butterfly-prolog
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mayshukla/butterfly-prolog" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmayshukla%2Fbutterfly-prolog", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmayshukla%2Fbutterfly-prolog'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2a8ae348ff76e157064b333c87d16e5e2d2bf36
[INFO] documenting mayshukla/butterfly-prolog 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%2Fmayshukla%2Fbutterfly-prolog" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mayshukla/butterfly-prolog 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/mayshukla/butterfly-prolog
[INFO] finished tweaking git repo https://github.com/mayshukla/butterfly-prolog
[INFO] tweaked toml for git repo https://github.com/mayshukla/butterfly-prolog written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/mayshukla/butterfly-prolog 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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] cd42a0b6ad96667594fe397a170d5a02d718d3707a759c061ff8c790777f045d
[INFO] running `Command { std: "docker" "start" "-a" "cd42a0b6ad96667594fe397a170d5a02d718d3707a759c061ff8c790777f045d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd42a0b6ad96667594fe397a170d5a02d718d3707a759c061ff8c790777f045d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd42a0b6ad96667594fe397a170d5a02d718d3707a759c061ff8c790777f045d", kill_on_drop: false }`
[INFO] [stdout] cd42a0b6ad96667594fe397a170d5a02d718d3707a759c061ff8c790777f045d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 8dd9c04915959aa439ff41b9060985721a2913b6b7d8f6bbe5d29e013fb1c78c
[INFO] running `Command { std: "docker" "start" "-a" "8dd9c04915959aa439ff41b9060985721a2913b6b7d8f6bbe5d29e013fb1c78c", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]  Documenting butterfly-prolog v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/heap.rs:5:41
[INFO] [stdout]   |
[INFO] [stdout] 5 |  * Based on heap representation used in https://github.com/ptarau/iProlog
[INFO] [stdout]   |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://github.com/ptarau/iProlog>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(rustdoc::bare_urls)]` on by default
[INFO] [stdout]   = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]   --> src/compiler.rs:24:35
[INFO] [stdout]    |
[INFO] [stdout] 24 |  * Based on the "Clause" class in https://github.com/ptarau/iProlog
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://github.com/ptarau/iProlog>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]   --> src/compiler.rs:58:34
[INFO] [stdout]    |
[INFO] [stdout] 58 |  * Based on the "Spine" class in https://github.com/ptarau/iProlog
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://github.com/ptarau/iProlog>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]    --> src/compiler.rs:338:46
[INFO] [stdout]     |
[INFO] [stdout] 338 |      * This algorithm is taken from iProlog: https://github.com/ptarau/iProlog
[INFO] [stdout]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://github.com/ptarau/iProlog>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.51s
[INFO] running `Command { std: "docker" "inspect" "8dd9c04915959aa439ff41b9060985721a2913b6b7d8f6bbe5d29e013fb1c78c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dd9c04915959aa439ff41b9060985721a2913b6b7d8f6bbe5d29e013fb1c78c", kill_on_drop: false }`
[INFO] [stdout] 8dd9c04915959aa439ff41b9060985721a2913b6b7d8f6bbe5d29e013fb1c78c