[INFO] updating cached repository https://github.com/rsarwas/learn-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3932a3925fc670b9738b94bf292a69d32c2a71fd
[INFO] documenting rsarwas/learn-rust against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frsarwas%2Flearn-rust" "/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/rsarwas/learn-rust on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rsarwas/learn-rust
[INFO] finished tweaking git repo https://github.com/rsarwas/learn-rust
[INFO] tweaked toml for git repo https://github.com/rsarwas/learn-rust written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/rsarwas/learn-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 179775cd4797763e54e8e614244ef2e3029de3a272dc2146a8aec2f9b9aa3384
[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" "179775cd4797763e54e8e614244ef2e3029de3a272dc2146a8aec2f9b9aa3384", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "179775cd4797763e54e8e614244ef2e3029de3a272dc2146a8aec2f9b9aa3384", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "179775cd4797763e54e8e614244ef2e3029de3a272dc2146a8aec2f9b9aa3384", kill_on_drop: false }`
[INFO] [stdout] 179775cd4797763e54e8e614244ef2e3029de3a272dc2146a8aec2f9b9aa3384
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b81ca4f53911744c59ab1221f0bbe2c4671ded15426ad01e9cb91eb69554dca
[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" "2b81ca4f53911744c59ab1221f0bbe2c4671ded15426ad01e9cb91eb69554dca", kill_on_drop: false }`
[INFO] [stderr]     Checking hamming v0.1.3
[INFO] [stderr]     Checking primal-estimate v0.2.1
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking smallvec v0.6.7
[INFO] [stderr]     Checking primal-bit v0.2.4
[INFO] [stderr]     Checking primal-sieve v0.2.9
[INFO] [stderr]     Checking primal-check v0.2.3
[INFO] [stderr]     Checking primal v0.2.3
[INFO] [stderr]  Documenting learn-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[c]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/euler/math.rs:77:34
[INFO] [stdout]    |
[INFO] [stdout] 77 | /// powerset will generate [[], [c], [b], [c, b], [a], [c, a], [b, a], [c, b, a]]
[INFO] [stdout]    |                                  ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[b]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/euler/math.rs:77:39
[INFO] [stdout]    |
[INFO] [stdout] 77 | /// powerset will generate [[], [c], [b], [c, b], [a], [c, a], [b, a], [c, b, a]]
[INFO] [stdout]    |                                       ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[a]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/euler/math.rs:77:52
[INFO] [stdout]    |
[INFO] [stdout] 77 | /// powerset will generate [[], [c], [b], [c, b], [a], [c, a], [b, a], [c, b, a]]
[INFO] [stdout]    |                                                    ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[2]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/euler/problem357.rs:218:29
[INFO] [stdout]     |
[INFO] [stdout] 218 | /// i.e. [2,2,3,3] => [[], [2], [3], [2*2], [2*3], [3*3], [2*2*3], [2*3*3], [2*2*3*3]]
[INFO] [stdout]     |                             ^ cannot be resolved, ignoring
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[3]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/euler/problem357.rs:218:34
[INFO] [stdout]     |
[INFO] [stdout] 218 | /// i.e. [2,2,3,3] => [[], [2], [3], [2*2], [2*3], [3*3], [2*2*3], [2*3*3], [2*2*3*3]]
[INFO] [stdout]     |                                  ^ cannot be resolved, ignoring
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[2]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/euler/problem357.rs:259:27
[INFO] [stdout]     |
[INFO] [stdout] 259 | /// i.e. [2,2,3] => [[], [2], [2], [3], [2*2], [2*3], [2*3], [2*2*3]]
[INFO] [stdout]     |                           ^ cannot be resolved, ignoring
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[2]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/euler/problem357.rs:259:32
[INFO] [stdout]     |
[INFO] [stdout] 259 | /// i.e. [2,2,3] => [[], [2], [2], [3], [2*2], [2*3], [2*3], [2*2*3]]
[INFO] [stdout]     |                                ^ cannot be resolved, ignoring
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[3]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/euler/problem357.rs:259:37
[INFO] [stdout]     |
[INFO] [stdout] 259 | /// i.e. [2,2,3] => [[], [2], [2], [3], [2*2], [2*3], [2*3], [2*2*3]]
[INFO] [stdout]     |                                     ^ cannot be resolved, ignoring
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.27s
[INFO] running `Command { std: "docker" "inspect" "2b81ca4f53911744c59ab1221f0bbe2c4671ded15426ad01e9cb91eb69554dca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b81ca4f53911744c59ab1221f0bbe2c4671ded15426ad01e9cb91eb69554dca", kill_on_drop: false }`
[INFO] [stdout] 2b81ca4f53911744c59ab1221f0bbe2c4671ded15426ad01e9cb91eb69554dca