[INFO] cloning repository https://github.com/willowell/classic_computer_science_problems_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/willowell/classic_computer_science_problems_in_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillowell%2Fclassic_computer_science_problems_in_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillowell%2Fclassic_computer_science_problems_in_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 572490aa168ed7e262e8ecd2cbc7e28a62b287c7 [INFO] documenting willowell/classic_computer_science_problems_in_rust against 1.75.0 for beta-1.76-rustdoc-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillowell%2Fclassic_computer_science_problems_in_rust" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/willowell/classic_computer_science_problems_in_rust on toolchain 1.75.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/willowell/classic_computer_science_problems_in_rust [INFO] finished tweaking git repo https://github.com/willowell/classic_computer_science_problems_in_rust [INFO] tweaked toml for git repo https://github.com/willowell/classic_computer_science_problems_in_rust written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/willowell/classic_computer_science_problems_in_rust 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded proc-macro2 v1.0.46 [INFO] [stderr] Downloaded bit-set v0.4.0 [INFO] [stderr] Downloaded console v0.15.2 [INFO] [stderr] Downloaded integer-sqrt v0.1.5 [INFO] [stderr] Downloaded vec_map v0.6.0 [INFO] [stderr] Downloaded wyz v0.5.0 [INFO] [stderr] Downloaded gcollections v1.5.0 [INFO] [stderr] Downloaded ordered-float v3.3.0 [INFO] [stderr] Downloaded syn v1.0.101 [INFO] [stderr] Downloaded petgraph v0.6.2 [INFO] [stderr] Downloaded libc v0.2.134 [INFO] [stderr] Downloaded intervallum v1.4.0 [INFO] [stderr] Downloaded trilean v1.1.0 [INFO] [stderr] Downloaded memoize v0.3.1 [INFO] [stderr] Downloaded memoize-inner v0.2.1 [INFO] [stderr] Downloaded libpcp v0.6.4 [INFO] [stderr] Downloaded pathfinding v3.0.14 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1b51486496c4e866325b67222cd5743317e8977d72bf7b53a611492c349ca9c8 [INFO] running `Command { std: "docker" "start" "-a" "1b51486496c4e866325b67222cd5743317e8977d72bf7b53a611492c349ca9c8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1b51486496c4e866325b67222cd5743317e8977d72bf7b53a611492c349ca9c8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1b51486496c4e866325b67222cd5743317e8977d72bf7b53a611492c349ca9c8", kill_on_drop: false }` [INFO] [stdout] 1b51486496c4e866325b67222cd5743317e8977d72bf7b53a611492c349ca9c8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3c0ed99548243901af0f8e1e5c692797febb44cdea4dcbc8fd434b071916498b [INFO] running `Command { std: "docker" "start" "-a" "3c0ed99548243901af0f8e1e5c692797febb44cdea4dcbc8fd434b071916498b", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling libc v0.2.134 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling proc-macro2 v1.0.46 [INFO] [stderr] Compiling quote v1.0.21 [INFO] [stderr] Compiling unicode-ident v1.0.4 [INFO] [stderr] Compiling syn v1.0.101 [INFO] [stderr] Compiling indexmap v1.9.1 [INFO] [stderr] Compiling num-iter v0.1.43 [INFO] [stderr] Checking bit-vec v0.6.3 [INFO] [stderr] Checking bit-set v0.5.3 [INFO] [stderr] Checking trilean v1.1.0 [INFO] [stderr] Compiling radium v0.7.0 [INFO] [stderr] Compiling thiserror v1.0.37 [INFO] [stderr] Checking hashbrown v0.12.3 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Checking tap v1.0.1 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Checking bit-vec v0.4.4 [INFO] [stderr] Checking either v1.8.0 [INFO] [stderr] Checking fixedbitset v0.4.2 [INFO] [stderr] Checking bit-set v0.4.0 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking getrandom v0.2.7 [INFO] [stderr] Checking terminal_size v0.1.17 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking wyz v0.5.0 [INFO] [stderr] Checking vec_map v0.6.0 [INFO] [stderr] Checking funty v2.0.0 [INFO] [stderr] Checking num-complex v0.1.43 [INFO] [stderr] Checking integer-sqrt v0.1.5 [INFO] [stderr] Checking minimal-lexical v0.2.1 [INFO] [stderr] Checking rustc-hash v1.1.0 [INFO] [stderr] Checking console v0.15.2 [INFO] [stderr] Checking ordered-float v3.3.0 [INFO] [stderr] Checking num-bigint v0.1.44 [INFO] [stderr] Checking gcollections v1.5.0 [INFO] [stderr] Checking nom v7.1.1 [INFO] [stderr] Checking petgraph v0.6.2 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking bitvec v1.0.1 [INFO] [stderr] Checking intervallum v1.4.0 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking num v0.1.42 [INFO] [stderr] Checking libpcp v0.6.4 [INFO] [stderr] Compiling thiserror-impl v1.0.37 [INFO] [stderr] Compiling memoize-inner v0.2.1 [INFO] [stderr] Checking memoize v0.3.1 [INFO] [stderr] Checking pathfinding v3.0.14 [INFO] [stderr] Checking classic_computer_science_problems v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Documenting classic_computer_science_problems v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: method `to_character` is never used [INFO] [stdout] --> src/maze.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 16 | impl Cell { [INFO] [stdout] | --------- method in this implementation [INFO] [stdout] 17 | fn to_character(&self) -> &str { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `euclidean_distance_to` is never used [INFO] [stdout] --> src/maze.rs:53:8 [INFO] [stdout] | [INFO] [stdout] 52 | impl MazeLocation { [INFO] [stdout] | ----------------- method in this implementation [INFO] [stdout] 53 | fn euclidean_distance_to(&self, dest: MazeLocation) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/csp.rs:59:28 [INFO] [stdout] | [INFO] [stdout] 59 | for constraints in self.constraints.get(&variable) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] | [INFO] [stdout] 59 | while let Some(constraints) = self.constraints.get(&variable) { [INFO] [stdout] | ~~~~~~~~~~~~~~~ ~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 59 | if let Some(constraints) = self.constraints.get(&variable) { [INFO] [stdout] | ~~~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/csp.rs:82:28 [INFO] [stdout] | [INFO] [stdout] 82 | for domains in self.domains.get(unassigned) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] | [INFO] [stdout] 82 | while let Some(domains) = self.domains.get(unassigned) { [INFO] [stdout] | ~~~~~~~~~~~~~~~ ~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 82 | if let Some(domains) = self.domains.get(unassigned) { [INFO] [stdout] | ~~~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this URL is not a hyperlink [INFO] [stdout] --> book/chapter_01/calculate_pi.rs:7:26 [INFO] [stdout] | [INFO] [stdout] 7 | /// Java implementation: https://github.com/davecom/ClassicComputerScienceProblemsInJava/blob/master/CCSPiJ/src/chapter1/PiCalculator.java [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `` [INFO] [stdout] | [INFO] [stdout] = note: bare URLs are not automatically turned into clickable links [INFO] [stdout] = note: `#[warn(rustdoc::bare_urls)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this URL is not a hyperlink [INFO] [stdout] --> book/chapter_01/fib1.rs:6:26 [INFO] [stdout] | [INFO] [stdout] 6 | /// Java implementation: https://github.com/davecom/ClassicComputerScienceProblemsInJava/blob/master/CCSPiJ/src/chapter1/Fib1.java [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `` [INFO] [stdout] | [INFO] [stdout] = note: bare URLs are not automatically turned into clickable links [INFO] [stdout] = note: `#[warn(rustdoc::bare_urls)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 40.82s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] [stderr] Generated /opt/rustwide/target/doc/classic_computer_science_problems/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/au_map/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/bit_vectors/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/byog/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/calculate_pi/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/compressed_gene/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/dna_search/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/eight_queens/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/eight_queens2/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/fib1/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/fib2/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/fib3/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/fib4/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/fib5/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/fib6/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/generic_search/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/hanoi/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/hanoi_k_towers/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/image_otp/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/linear_binary_search_performance/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/maze/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/maze2/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/maze_search_states/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/mc/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/more_mc/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/send_more_money/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/unbreakable_encryption/index.html [INFO] [stderr] Generated /opt/rustwide/target/doc/word_search/index.html [INFO] running `Command { std: "docker" "inspect" "3c0ed99548243901af0f8e1e5c692797febb44cdea4dcbc8fd434b071916498b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3c0ed99548243901af0f8e1e5c692797febb44cdea4dcbc8fd434b071916498b", kill_on_drop: false }` [INFO] [stdout] 3c0ed99548243901af0f8e1e5c692797febb44cdea4dcbc8fd434b071916498b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e68a77213d26b337530efbf3a63a77ff46bd0555e898df933334a58076b9a51a [INFO] running `Command { std: "docker" "start" "-a" "e68a77213d26b337530efbf3a63a77ff46bd0555e898df933334a58076b9a51a", kill_on_drop: false }` [INFO] [stderr] Documenting classic_computer_science_problems v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.99s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] [stderr] Generated /opt/rustwide/target/doc/classic_computer_science_problems/index.html [INFO] running `Command { std: "docker" "inspect" "e68a77213d26b337530efbf3a63a77ff46bd0555e898df933334a58076b9a51a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e68a77213d26b337530efbf3a63a77ff46bd0555e898df933334a58076b9a51a", kill_on_drop: false }` [INFO] [stdout] e68a77213d26b337530efbf3a63a77ff46bd0555e898df933334a58076b9a51a