[INFO] cloning repository https://github.com/Azleur/sokoban-generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Azleur/sokoban-generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAzleur%2Fsokoban-generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAzleur%2Fsokoban-generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e60846b12293f3651a329ea04962bc6d736dfb9
[INFO] documenting Azleur/sokoban-generator against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAzleur%2Fsokoban-generator" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Azleur/sokoban-generator 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 git repo https://github.com/Azleur/sokoban-generator
[INFO] finished tweaking git repo https://github.com/Azleur/sokoban-generator
[INFO] tweaked toml for git repo https://github.com/Azleur/sokoban-generator written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Azleur/sokoban-generator 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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 22178dacdaf534c77b0e8e32102c43be59c3c73b24c5621c5a12af012c08947c
[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" "22178dacdaf534c77b0e8e32102c43be59c3c73b24c5621c5a12af012c08947c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22178dacdaf534c77b0e8e32102c43be59c3c73b24c5621c5a12af012c08947c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22178dacdaf534c77b0e8e32102c43be59c3c73b24c5621c5a12af012c08947c", kill_on_drop: false }`
[INFO] [stdout] 22178dacdaf534c77b0e8e32102c43be59c3c73b24c5621c5a12af012c08947c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stdout] f42cfbe989c5dbbea902b7a7916541e1ccbe4a31170db24e004a2a4185441a1d
[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" "f42cfbe989c5dbbea902b7a7916541e1ccbe4a31170db24e004a2a4185441a1d", kill_on_drop: false }`
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking mio v0.7.0
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking crossterm v0.17.7
[INFO] [stderr]     Checking sokoban-generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting sokoban-generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `i`
[INFO] [stdout]   --> src/iters/filter.rs:10:72
[INFO] [stdout]    |
[INFO] [stdout] 10 |     /// D4 symmetries of the boards accepted by the filter. symmetries[i] corresponds to boards[i], etc.
[INFO] [stdout]    |                                                                        ^ the module `filter` contains no item named `i`
[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 `i`
[INFO] [stdout]   --> src/iters/filter.rs:10:97
[INFO] [stdout]    |
[INFO] [stdout] 10 |     /// D4 symmetries of the boards accepted by the filter. symmetries[i] corresponds to boards[i], etc.
[INFO] [stdout]    |                                                                                                 ^ the module `filter` contains no item named `i`
[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 9.99s
[INFO] running `Command { std: "docker" "inspect" "f42cfbe989c5dbbea902b7a7916541e1ccbe4a31170db24e004a2a4185441a1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f42cfbe989c5dbbea902b7a7916541e1ccbe4a31170db24e004a2a4185441a1d", kill_on_drop: false }`
[INFO] [stdout] f42cfbe989c5dbbea902b7a7916541e1ccbe4a31170db24e004a2a4185441a1d