[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] testing willowell/classic_computer_science_problems_in_rust against 1.75.0 for beta-1.76-3 [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-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-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-3-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] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... 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"/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] 6a7bb01203bd5fd8a4e4ff507657c1359222440c179e0f605e991e0dc12a6b2e [INFO] running `Command { std: "docker" "start" "-a" "6a7bb01203bd5fd8a4e4ff507657c1359222440c179e0f605e991e0dc12a6b2e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6a7bb01203bd5fd8a4e4ff507657c1359222440c179e0f605e991e0dc12a6b2e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6a7bb01203bd5fd8a4e4ff507657c1359222440c179e0f605e991e0dc12a6b2e", kill_on_drop: false }` [INFO] [stdout] 6a7bb01203bd5fd8a4e4ff507657c1359222440c179e0f605e991e0dc12a6b2e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 41afe99b29c53333c1a6efcb69d2ddf7118953868db9ec24d0060714e44a34ee [INFO] running `Command { std: "docker" "start" "-a" "41afe99b29c53333c1a6efcb69d2ddf7118953868db9ec24d0060714e44a34ee", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling libc v0.2.134 [INFO] [stderr] Compiling proc-macro2 v1.0.46 [INFO] [stderr] Compiling unicode-ident v1.0.4 [INFO] [stderr] Compiling quote v1.0.21 [INFO] [stderr] Compiling syn v1.0.101 [INFO] [stderr] Compiling rustc-serialize v0.3.24 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling bit-vec v0.6.3 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling trilean v1.1.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling radium v0.7.0 [INFO] [stderr] Compiling hashbrown v0.12.3 [INFO] [stderr] Compiling thiserror v1.0.37 [INFO] [stderr] Compiling fixedbitset v0.4.2 [INFO] [stderr] Compiling tap v1.0.1 [INFO] [stderr] Compiling either v1.8.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.16 [INFO] [stderr] Compiling bit-vec v0.4.4 [INFO] [stderr] Compiling wyz v0.5.0 [INFO] [stderr] Compiling bit-set v0.5.3 [INFO] [stderr] Compiling itertools v0.10.5 [INFO] [stderr] Compiling bit-set v0.4.0 [INFO] [stderr] Compiling rustc-hash v1.1.0 [INFO] [stderr] Compiling minimal-lexical v0.2.1 [INFO] [stderr] Compiling unicode-width v0.1.10 [INFO] [stderr] Compiling vec_map v0.6.0 [INFO] [stderr] Compiling funty v2.0.0 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling indexmap v1.9.1 [INFO] [stderr] Compiling num-iter v0.1.43 [INFO] [stderr] Compiling nom v7.1.1 [INFO] [stderr] Compiling bitvec v1.0.1 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling getrandom v0.2.7 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling console v0.15.2 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling petgraph v0.6.2 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling num-complex v0.1.43 [INFO] [stderr] Compiling integer-sqrt v0.1.5 [INFO] [stderr] Compiling ordered-float v3.3.0 [INFO] [stderr] Compiling num-bigint v0.1.44 [INFO] [stderr] Compiling gcollections v1.5.0 [INFO] [stderr] Compiling intervallum v1.4.0 [INFO] [stderr] Compiling num-rational v0.1.42 [INFO] [stderr] Compiling num v0.1.42 [INFO] [stderr] Compiling libpcp v0.6.4 [INFO] [stderr] Compiling thiserror-impl v1.0.37 [INFO] [stderr] Compiling memoize-inner v0.2.1 [INFO] [stderr] Compiling memoize v0.3.1 [INFO] [stderr] Compiling pathfinding v3.0.14 [INFO] [stderr] Compiling 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: function cannot return without recursing [INFO] [stdout] --> book/chapter_01/fib1.rs:10:1 [INFO] [stdout] | [INFO] [stdout] 10 | fn fib(x: u64) -> u64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing [INFO] [stdout] 11 | fib(x - 1) + fib(x - 2) [INFO] [stdout] | ---------- recursive call site [INFO] [stdout] | [INFO] [stdout] = help: a `loop` may express intention better if this is on purpose [INFO] [stdout] = note: `#[warn(unconditional_recursion)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> book/chapter_04/build_your_own_graph.rs:192:9 [INFO] [stdout] | [INFO] [stdout] 192 | let mut ug = UnweightedGraph::new(vec!["Atlanta", "Boston", "Chicago"]); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `uv` and `weight` are never read [INFO] [stdout] --> book/chapter_04/build_your_own_graph.rs:55:5 [INFO] [stdout] | [INFO] [stdout] 54 | struct WeightedEdge { [INFO] [stdout] | ------------ fields in this struct [INFO] [stdout] 55 | uv: EdgeUV, [INFO] [stdout] | ^^ [INFO] [stdout] 56 | weight: W, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `WeightedEdge` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `get_vertex_count`, `get_edge_count`, `insert_vertex`, `insert_edge`, and `get_edges_for_index` are never used [INFO] [stdout] --> book/chapter_04/build_your_own_graph.rs:93:8 [INFO] [stdout] | [INFO] [stdout] 88 | / impl Graph [INFO] [stdout] 89 | | where [INFO] [stdout] 90 | | V: Clone + PartialEq, [INFO] [stdout] 91 | | E: Clone + Edge + PartialEq, [INFO] [stdout] | |________________________________- associated items in this implementation [INFO] [stdout] 92 | { [INFO] [stdout] 93 | fn new(vertices: Vec) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 100 | fn get_vertex_count(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 104 | fn get_edge_count(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 108 | fn insert_vertex(&mut self, v: V) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 114 | fn insert_edge(&mut self, e: E) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 141 | fn get_edges_for_index(&self, index: usize) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `ALPHABET_LENGTH` and `new` are never used [INFO] [stdout] --> book/chapter_03/word_search.rs:28:11 [INFO] [stdout] | [INFO] [stdout] 27 | impl WordGrid { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] 28 | const ALPHABET_LENGTH: i32 = 26; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 31 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 16.01s [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] running `Command { std: "docker" "inspect" "41afe99b29c53333c1a6efcb69d2ddf7118953868db9ec24d0060714e44a34ee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "41afe99b29c53333c1a6efcb69d2ddf7118953868db9ec24d0060714e44a34ee", kill_on_drop: false }` [INFO] [stdout] 41afe99b29c53333c1a6efcb69d2ddf7118953868db9ec24d0060714e44a34ee [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a4f8d7adba10907f0dce93409c9d2b41587eae9c5c0eca160df82fa60b1d00ef [INFO] running `Command { std: "docker" "start" "-a" "a4f8d7adba10907f0dce93409c9d2b41587eae9c5c0eca160df82fa60b1d00ef", kill_on_drop: false }` [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] [stderr] Compiling classic_computer_science_problems v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function cannot return without recursing [INFO] [stdout] --> book/chapter_01/fib1.rs:10:1 [INFO] [stdout] | [INFO] [stdout] 10 | fn fib(x: u64) -> u64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing [INFO] [stdout] 11 | fib(x - 1) + fib(x - 2) [INFO] [stdout] | ---------- recursive call site [INFO] [stdout] | [INFO] [stdout] = help: a `loop` may express intention better if this is on purpose [INFO] [stdout] = note: `#[warn(unconditional_recursion)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> book/chapter_04/build_your_own_graph.rs:192:9 [INFO] [stdout] | [INFO] [stdout] 192 | let mut ug = UnweightedGraph::new(vec!["Atlanta", "Boston", "Chicago"]); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `uv` and `weight` are never read [INFO] [stdout] --> book/chapter_04/build_your_own_graph.rs:55:5 [INFO] [stdout] | [INFO] [stdout] 54 | struct WeightedEdge { [INFO] [stdout] | ------------ fields in this struct [INFO] [stdout] 55 | uv: EdgeUV, [INFO] [stdout] | ^^ [INFO] [stdout] 56 | weight: W, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `WeightedEdge` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `get_vertex_count`, `get_edge_count`, `insert_vertex`, `insert_edge`, and `get_edges_for_index` are never used [INFO] [stdout] --> book/chapter_04/build_your_own_graph.rs:93:8 [INFO] [stdout] | [INFO] [stdout] 88 | / impl Graph [INFO] [stdout] 89 | | where [INFO] [stdout] 90 | | V: Clone + PartialEq, [INFO] [stdout] 91 | | E: Clone + Edge + PartialEq, [INFO] [stdout] | |________________________________- associated items in this implementation [INFO] [stdout] 92 | { [INFO] [stdout] 93 | fn new(vertices: Vec) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 100 | fn get_vertex_count(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 104 | fn get_edge_count(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 108 | fn insert_vertex(&mut self, v: V) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 114 | fn insert_edge(&mut self, e: E) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 141 | fn get_edges_for_index(&self, index: usize) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [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: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `ALPHABET_LENGTH` and `new` are never used [INFO] [stdout] --> book/chapter_03/word_search.rs:28:11 [INFO] [stdout] | [INFO] [stdout] 27 | impl WordGrid { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] 28 | const ALPHABET_LENGTH: i32 = 26; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 31 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.11s [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] running `Command { std: "docker" "inspect" "a4f8d7adba10907f0dce93409c9d2b41587eae9c5c0eca160df82fa60b1d00ef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a4f8d7adba10907f0dce93409c9d2b41587eae9c5c0eca160df82fa60b1d00ef", kill_on_drop: false }` [INFO] [stdout] a4f8d7adba10907f0dce93409c9d2b41587eae9c5c0eca160df82fa60b1d00ef [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 0eef97ad7dcccc2d6c52f2df9c746b7ffb295982c6d424e7ac6e2162ee07972d [INFO] running `Command { std: "docker" "start" "-a" "0eef97ad7dcccc2d6c52f2df9c746b7ffb295982c6d424e7ac6e2162ee07972d", kill_on_drop: false }` [INFO] [stderr] warning: method `to_character` is never used [INFO] [stderr] --> src/maze.rs:17:8 [INFO] [stderr] | [INFO] [stderr] 16 | impl Cell { [INFO] [stderr] | --------- method in this implementation [INFO] [stderr] 17 | fn to_character(&self) -> &str { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method `euclidean_distance_to` is never used [INFO] [stderr] --> src/maze.rs:53:8 [INFO] [stderr] | [INFO] [stderr] 52 | impl MazeLocation { [INFO] [stderr] | ----------------- method in this implementation [INFO] [stderr] 53 | fn euclidean_distance_to(&self, dest: MazeLocation) -> f64 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stderr] --> src/csp.rs:59:28 [INFO] [stderr] | [INFO] [stderr] 59 | for constraints in self.constraints.get(&variable) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stderr] help: to check pattern in a loop use `while let` [INFO] [stderr] | [INFO] [stderr] 59 | while let Some(constraints) = self.constraints.get(&variable) { [INFO] [stderr] | ~~~~~~~~~~~~~~~ ~~~ [INFO] [stderr] help: consider using `if let` to clear intent [INFO] [stderr] | [INFO] [stderr] 59 | if let Some(constraints) = self.constraints.get(&variable) { [INFO] [stderr] | ~~~~~~~~~~~~ ~~~ [INFO] [stderr] [INFO] [stderr] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stderr] --> src/csp.rs:82:28 [INFO] [stderr] | [INFO] [stderr] 82 | for domains in self.domains.get(unassigned) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] help: to check pattern in a loop use `while let` [INFO] [stderr] | [INFO] [stderr] 82 | while let Some(domains) = self.domains.get(unassigned) { [INFO] [stderr] | ~~~~~~~~~~~~~~~ ~~~ [INFO] [stderr] help: consider using `if let` to clear intent [INFO] [stderr] | [INFO] [stderr] 82 | if let Some(domains) = self.domains.get(unassigned) { [INFO] [stderr] | ~~~~~~~~~~~~ ~~~ [INFO] [stderr] [INFO] [stderr] warning: `classic_computer_science_problems` (lib) generated 4 warnings [INFO] [stderr] warning: `classic_computer_science_problems` (lib test) generated 4 warnings (4 duplicates) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> book/chapter_04/build_your_own_graph.rs:192:9 [INFO] [stderr] | [INFO] [stderr] 192 | let mut ug = UnweightedGraph::new(vec!["Atlanta", "Boston", "Chicago"]); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: fields `uv` and `weight` are never read [INFO] [stderr] --> book/chapter_04/build_your_own_graph.rs:55:5 [INFO] [stderr] | [INFO] [stderr] 54 | struct WeightedEdge { [INFO] [stderr] | ------------ fields in this struct [INFO] [stderr] 55 | uv: EdgeUV, [INFO] [stderr] | ^^ [INFO] [stderr] 56 | weight: W, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `WeightedEdge` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated items `new`, `get_vertex_count`, `get_edge_count`, `insert_vertex`, `insert_edge`, and `get_edges_for_index` are never used [INFO] [stderr] --> book/chapter_04/build_your_own_graph.rs:93:8 [INFO] [stderr] | [INFO] [stderr] 88 | / impl Graph [INFO] [stderr] 89 | | where [INFO] [stderr] 90 | | V: Clone + PartialEq, [INFO] [stderr] 91 | | E: Clone + Edge + PartialEq, [INFO] [stderr] | |________________________________- associated items in this implementation [INFO] [stderr] 92 | { [INFO] [stderr] 93 | fn new(vertices: Vec) -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] ... [INFO] [stderr] 100 | fn get_vertex_count(&self) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 104 | fn get_edge_count(&self) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 108 | fn insert_vertex(&mut self, v: V) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 114 | fn insert_edge(&mut self, e: E) { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 141 | fn get_edges_for_index(&self, index: usize) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated items `ALPHABET_LENGTH` and `new` are never used [INFO] [stderr] --> book/chapter_03/word_search.rs:28:11 [INFO] [stderr] | [INFO] [stderr] 27 | impl WordGrid { [INFO] [stderr] | ------------- associated items in this implementation [INFO] [stderr] 28 | const ALPHABET_LENGTH: i32 = 26; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 31 | pub fn new() -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `classic_computer_science_problems` (bin "byog" test) generated 3 warnings (run `cargo fix --bin "byog" --tests` to apply 1 suggestion) [INFO] [stderr] warning: `classic_computer_science_problems` (bin "word_search" test) generated 1 warning [INFO] [stderr] warning: function cannot return without recursing [INFO] [stderr] --> book/chapter_01/fib1.rs:10:1 [INFO] [stderr] | [INFO] [stderr] 10 | fn fib(x: u64) -> u64 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing [INFO] [stderr] 11 | fib(x - 1) + fib(x - 2) [INFO] [stderr] | ---------- recursive call site [INFO] [stderr] | [INFO] [stderr] = help: a `loop` may express intention better if this is on purpose [INFO] [stderr] = note: `#[warn(unconditional_recursion)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `classic_computer_science_problems` (bin "fib1" test) generated 1 warning [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [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] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/classic_computer_science_problems-d042fef0b6cdc1c9) [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_03/australian_map_colouring.rs (/opt/rustwide/target/debug/deps/au_map-1f5c0f1d8d2cf617) [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_01/bit_vectors.rs (/opt/rustwide/target/debug/deps/bit_vectors-fb89d5e96e1bd0b6) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_04/build_your_own_graph.rs (/opt/rustwide/target/debug/deps/byog-ad1a9e077293faaa) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_01/calculate_pi.rs (/opt/rustwide/target/debug/deps/calculate_pi-e2991ed21d80e427) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/classic_computer_science_problems-42dc2c6b96070c2b) [INFO] [stderr] Running unittests book/chapter_01/compressed_gene.rs (/opt/rustwide/target/debug/deps/compressed_gene-f9a676c74cb40c59) [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_02/dna_search.rs (/opt/rustwide/target/debug/deps/dna_search-5926d38d383a6f00) [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_03/eight_queens.rs (/opt/rustwide/target/debug/deps/eight_queens-4ba67f0b9d409eea) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_03/eight_queens2.rs (/opt/rustwide/target/debug/deps/eight_queens2-0c0352d8d7327368) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_01/fib1.rs (/opt/rustwide/target/debug/deps/fib1-192f376c5da2c8c1) [INFO] [stderr] Running unittests book/chapter_01/fib2.rs (/opt/rustwide/target/debug/deps/fib2-f453a00dadb0a392) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_01/fib3.rs (/opt/rustwide/target/debug/deps/fib3-7f57c40cee9b83e0) [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_01/fib4.rs (/opt/rustwide/target/debug/deps/fib4-fb636e846b45c191) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_01/fib5.rs (/opt/rustwide/target/debug/deps/fib5-fa53d711472c1bd8) [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_01/fib6.rs (/opt/rustwide/target/debug/deps/fib6-b36f7ac4e1c9547b) [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests book/chapter_02/generic_search.rs (/opt/rustwide/target/debug/deps/generic_search-75c6346ef0a1132a) [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_01/hanoi.rs (/opt/rustwide/target/debug/deps/hanoi-53936a1777d93898) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_01/exercises/hanoi_k_towers.rs (/opt/rustwide/target/debug/deps/hanoi_k_towers-a2e0190e2432df62) [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_01/exercises/image_otp.rs (/opt/rustwide/target/debug/deps/image_otp-a361fb5ff0f2938c) [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_02/exercises/linear_binary_search_performance.rs (/opt/rustwide/target/debug/deps/linear_binary_search_performance-6f57b9c83a040d13) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_02/maze.rs (/opt/rustwide/target/debug/deps/maze-bc90e1ad032b9bae) [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_02/maze2.rs (/opt/rustwide/target/debug/deps/maze2-7a1bef0fbccfe0ac) [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests book/chapter_02/exercises/maze_search_states.rs (/opt/rustwide/target/debug/deps/maze_search_states-1e142e3a698d5c06) [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_02/missionaries_and_cannibals.rs (/opt/rustwide/target/debug/deps/mc-69242bbb9b1ae133) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_02/exercises/more_missionaries_and_cannibals.rs (/opt/rustwide/target/debug/deps/more_mc-fa1a7918c0d168f0) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_03/send_more_money.rs (/opt/rustwide/target/debug/deps/send_more_money-4ea5c4e2648c592b) [INFO] [stderr] Running unittests book/chapter_01/unbreakable_encryption.rs (/opt/rustwide/target/debug/deps/unbreakable_encryption-41afc421f6c7b5e2) [INFO] [stdout] [INFO] [stderr] Running unittests book/chapter_03/word_search.rs (/opt/rustwide/target/debug/deps/word_search-d36c274702bcfb77) [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Doc-tests classic_computer_science_problems [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "0eef97ad7dcccc2d6c52f2df9c746b7ffb295982c6d424e7ac6e2162ee07972d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0eef97ad7dcccc2d6c52f2df9c746b7ffb295982c6d424e7ac6e2162ee07972d", kill_on_drop: false }` [INFO] [stdout] 0eef97ad7dcccc2d6c52f2df9c746b7ffb295982c6d424e7ac6e2162ee07972d