[INFO] fetching crate exact-covers 0.3.0...
[INFO] documenting exact-covers-0.3.0 against master#8afe9ff1caa97654c31fb8c259dac9fdf67d6302 for pr-151918-2
[INFO] extracting crate exact-covers 0.3.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate exact-covers 0.3.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate exact-covers 0.3.0
[INFO] tweaked toml for crates.io crate exact-covers 0.3.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate exact-covers 0.3.0 on toolchain 8afe9ff1caa97654c31fb8c259dac9fdf67d6302
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8afe9ff1caa97654c31fb8c259dac9fdf67d6302" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate exact-covers 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8afe9ff1caa97654c31fb8c259dac9fdf67d6302" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smallvec v2.0.0-alpha.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+8afe9ff1caa97654c31fb8c259dac9fdf67d6302" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d10955c2ba41a571239f66471a09a55d0f7a257c7c968a35fbabfb0f8c6eb92c
[INFO] running `Command { std: "docker" "start" "-a" "d10955c2ba41a571239f66471a09a55d0f7a257c7c968a35fbabfb0f8c6eb92c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d10955c2ba41a571239f66471a09a55d0f7a257c7c968a35fbabfb0f8c6eb92c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d10955c2ba41a571239f66471a09a55d0f7a257c7c968a35fbabfb0f8c6eb92c", kill_on_drop: false }`
[INFO] [stdout] d10955c2ba41a571239f66471a09a55d0f7a257c7c968a35fbabfb0f8c6eb92c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTFLAGS=--cap-lints=forbid" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+8afe9ff1caa97654c31fb8c259dac9fdf67d6302" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5ffc2155fdcc159d03212c05a8ad55b8d1efc86368ed046d684bbd2dd8a5f38
[INFO] running `Command { std: "docker" "start" "-a" "c5ffc2155fdcc159d03212c05a8ad55b8d1efc86368ed046d684bbd2dd8a5f38", kill_on_drop: false }`
[INFO] [stderr]  Documenting exact-covers v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/exact_covers/index.html
[INFO] running `Command { std: "docker" "inspect" "c5ffc2155fdcc159d03212c05a8ad55b8d1efc86368ed046d684bbd2dd8a5f38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5ffc2155fdcc159d03212c05a8ad55b8d1efc86368ed046d684bbd2dd8a5f38", kill_on_drop: false }`
[INFO] [stdout] c5ffc2155fdcc159d03212c05a8ad55b8d1efc86368ed046d684bbd2dd8a5f38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+8afe9ff1caa97654c31fb8c259dac9fdf67d6302" "rustdoc" "--lib" "-Zrustdoc-map" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"--html-in-header\", \"misc/katex-header.html\", \"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json" "-Zunstable-options" "-Zrustdoc-scrape-examples", kill_on_drop: false }`
[INFO] [stdout] 7de2c7f46dfc9b722859d32b221d3c31df4332b840f65d506bcc220c294ccc23
[INFO] running `Command { std: "docker" "start" "-a" "7de2c7f46dfc9b722859d32b221d3c31df4332b840f65d506bcc220c294ccc23", kill_on_drop: false }`
[INFO] [stderr]     Checking exact-covers v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking smallvec v2.0.0-alpha.6
[INFO] [stdout] warning: unused variable: `primary`
[INFO] [stdout]   --> src/dc.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn new(primary: &'i [I], secondary: &'i [I]) -> Self {
[INFO] [stdout]    |            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_primary`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `secondary`
[INFO] [stdout]   --> src/dc.rs:15:30
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn new(primary: &'i [I], secondary: &'i [I]) -> Self {
[INFO] [stdout]    |                              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_secondary`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `primary`
[INFO] [stdout]   --> src/dc.rs:19:36
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn add_option<P, S>(&mut self, primary: P, secondary: S)
[INFO] [stdout]    |                                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_primary`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `secondary`
[INFO] [stdout]   --> src/dc.rs:19:48
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn add_option<P, S>(&mut self, primary: P, secondary: S)
[INFO] [stdout]    |                                                ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_secondary`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visit`
[INFO] [stdout]   --> src/dc.rs:27:23
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn solve<F>(self, visit: F)
[INFO] [stdout]    |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_visit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]   --> src/dc.rs:36:23
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn pointer(&self, level: usize) -> Option<InstIndex> {
[INFO] [stdout]    |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ix`
[INFO] [stdout]   --> src/dc.rs:44:25
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn option_of(&self, ix: InstIndex, result: &mut Vec<(&'i I, Option<C>)>) {
[INFO] [stdout]    |                         ^^ help: if this is intentional, prefix it with an underscore: `_ix`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/dc.rs:44:40
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn option_of(&self, ix: InstIndex, result: &mut Vec<(&'i I, Option<C>)>) {
[INFO] [stdout]    |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Scraping exact-covers v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: public documentation for `polycube_packing` links to private item `is_in_bounds`
[INFO] [stdout]   --> examples/polycube_packing.rs:16:25
[INFO] [stdout]    |
[INFO] [stdout] 16 | //! [legal placement]: `is_in_bounds`
[INFO] [stdout]    |                         ^^^^^^^^^^^^ this item is private
[INFO] [stdout]    |
[INFO] [stdout]    = note: this link will resolve properly if you pass `--document-private-items`
[INFO] [stdout]    = note: `#[warn(rustdoc::private_intra_doc_links)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting exact-covers v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.54s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/exact_covers/index.html
[INFO] running `Command { std: "docker" "inspect" "7de2c7f46dfc9b722859d32b221d3c31df4332b840f65d506bcc220c294ccc23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7de2c7f46dfc9b722859d32b221d3c31df4332b840f65d506bcc220c294ccc23", kill_on_drop: false }`
[INFO] [stdout] 7de2c7f46dfc9b722859d32b221d3c31df4332b840f65d506bcc220c294ccc23
