[INFO] crate half_edge_mesh 1.1.8 is already in cache
[INFO] extracting crate half_edge_mesh 1.1.8 into work/ex/clippy-test-run/sources/stable/reg/half_edge_mesh/1.1.8
[INFO] extracting crate half_edge_mesh 1.1.8 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/half_edge_mesh/1.1.8
[INFO] validating manifest of half_edge_mesh-1.1.8 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of half_edge_mesh-1.1.8 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing half_edge_mesh-1.1.8
[INFO] finished frobbing half_edge_mesh-1.1.8
[INFO] frobbed toml for half_edge_mesh-1.1.8 written to work/ex/clippy-test-run/sources/stable/reg/half_edge_mesh/1.1.8/Cargo.toml
[INFO] started frobbing half_edge_mesh-1.1.8
[INFO] finished frobbing half_edge_mesh-1.1.8
[INFO] frobbed toml for half_edge_mesh-1.1.8 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/half_edge_mesh/1.1.8/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting half_edge_mesh-1.1.8 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/half_edge_mesh/1.1.8:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d592ee3b41dc3837f2060ddde91a99ec1506d8ff1484080c783c943d3e1ab0a3
[INFO] running `"docker" "start" "-a" "d592ee3b41dc3837f2060ddde91a99ec1506d8ff1484080c783c943d3e1ab0a3"`
[INFO] [stderr]     Checking half_edge_mesh v1.1.8 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/edge.rs:20:7
[INFO] [stderr]    |
[INFO] [stderr] 20 |       id: id,
[INFO] [stderr]    |       ^^^^^^ help: replace it with: `id`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/edge.rs:30:7
[INFO] [stderr]    |
[INFO] [stderr] 30 |       id: id,
[INFO] [stderr]    |       ^^^^^^ help: replace it with: `id`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/edge.rs:33:7
[INFO] [stderr]    |
[INFO] [stderr] 33 |       origin: origin,
[INFO] [stderr]    |       ^^^^^^^^^^^^^^ help: replace it with: `origin`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/vert.rs:20:7
[INFO] [stderr]    |
[INFO] [stderr] 20 |       id: id,
[INFO] [stderr]    |       ^^^^^^ help: replace it with: `id`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/vert.rs:22:7
[INFO] [stderr]    |
[INFO] [stderr] 22 |       pos: pos,
[INFO] [stderr]    |       ^^^^^^^^ help: replace it with: `pos`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/vert.rs:29:7
[INFO] [stderr]    |
[INFO] [stderr] 29 |       id: id,
[INFO] [stderr]    |       ^^^^^^ help: replace it with: `id`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/vert.rs:30:7
[INFO] [stderr]    |
[INFO] [stderr] 30 |       edge: edge,
[INFO] [stderr]    |       ^^^^^^^^^^ help: replace it with: `edge`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/vert.rs:31:7
[INFO] [stderr]    |
[INFO] [stderr] 31 |       pos: pos,
[INFO] [stderr]    |       ^^^^^^^^ help: replace it with: `pos`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/face.rs:21:7
[INFO] [stderr]    |
[INFO] [stderr] 21 |       id: id,
[INFO] [stderr]    |       ^^^^^^ help: replace it with: `id`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/face.rs:33:7
[INFO] [stderr]    |
[INFO] [stderr] 33 |       id: id,
[INFO] [stderr]    |       ^^^^^^ help: replace it with: `id`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/face.rs:34:7
[INFO] [stderr]    |
[INFO] [stderr] 34 |       edge: edge,
[INFO] [stderr]    |       ^^^^^^^^^^ help: replace it with: `edge`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/iterators.rs:109:7
[INFO] [stderr]     |
[INFO] [stderr] 109 |       state: state,
[INFO] [stderr]     |       ^^^^^^^^^^^^ help: replace it with: `state`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/edge.rs:20:7
[INFO] [stderr]    |
[INFO] [stderr] 20 |       id: id,
[INFO] [stderr]    |       ^^^^^^ help: replace it with: `id`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/edge.rs:30:7
[INFO] [stderr]    |
[INFO] [stderr] 30 |       id: id,
[INFO] [stderr]    |       ^^^^^^ help: replace it with: `id`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/edge.rs:33:7
[INFO] [stderr]    |
[INFO] [stderr] 33 |       origin: origin,
[INFO] [stderr]    |       ^^^^^^^^^^^^^^ help: replace it with: `origin`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/vert.rs:20:7
[INFO] [stderr]    |
[INFO] [stderr] 20 |       id: id,
[INFO] [stderr]    |       ^^^^^^ help: replace it with: `id`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/vert.rs:22:7
[INFO] [stderr]    |
[INFO] [stderr] 22 |       pos: pos,
[INFO] [stderr]    |       ^^^^^^^^ help: replace it with: `pos`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/vert.rs:29:7
[INFO] [stderr]    |
[INFO] [stderr] 29 |       id: id,
[INFO] [stderr]    |       ^^^^^^ help: replace it with: `id`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/vert.rs:30:7
[INFO] [stderr]    |
[INFO] [stderr] 30 |       edge: edge,
[INFO] [stderr]    |       ^^^^^^^^^^ help: replace it with: `edge`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/vert.rs:31:7
[INFO] [stderr]    |
[INFO] [stderr] 31 |       pos: pos,
[INFO] [stderr]    |       ^^^^^^^^ help: replace it with: `pos`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/face.rs:21:7
[INFO] [stderr]    |
[INFO] [stderr] 21 |       id: id,
[INFO] [stderr]    |       ^^^^^^ help: replace it with: `id`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/face.rs:33:7
[INFO] [stderr]    |
[INFO] [stderr] 33 |       id: id,
[INFO] [stderr]    |       ^^^^^^ help: replace it with: `id`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/face.rs:34:7
[INFO] [stderr]    |
[INFO] [stderr] 34 |       edge: edge,
[INFO] [stderr]    |       ^^^^^^^^^^ help: replace it with: `edge`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/iterators.rs:109:7
[INFO] [stderr]     |
[INFO] [stderr] 109 |       state: state,
[INFO] [stderr]     |       ^^^^^^^^^^^^ help: replace it with: `state`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]    --> src/mesh.rs:337:7
[INFO] [stderr]     |
[INFO] [stderr] 337 |       base_edge.borrow().origin.upgrade().map(|o| o.borrow_mut().take_edge(Ptr::new(base_edge)));
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stderr]     |       |
[INFO] [stderr]     |       help: try this: `if let Some(o) = base_edge.borrow().origin.upgrade() { o.borrow_mut().take_edge(Ptr::new(base_edge)) }`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::option_map_unit_fn)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]    --> src/mesh.rs:420:11
[INFO] [stderr]     |
[INFO] [stderr] 420 |           face_edge.borrow().get_origin().map(|o| o.borrow_mut().set_edge_rc(& face_edge));
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stderr]     |           |
[INFO] [stderr]     |           help: try this: `if let Some(o) = face_edge.borrow().get_origin() { o.borrow_mut().set_edge_rc(& face_edge) }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]    --> src/mesh.rs:589:7
[INFO] [stderr]     |
[INFO] [stderr] 589 |          edge_b.next.upgrade()
[INFO] [stderr]     |   _______^
[INFO] [stderr]     |  |_______|
[INFO] [stderr]     | ||
[INFO] [stderr] 590 | ||         .map(|next: EdgeRc| {
[INFO] [stderr] 591 | ||           let mut next_bm = next.borrow_mut();
[INFO] [stderr] 592 | ||           next_bm.set_face_rc(& new_face); // e.n.f = n_f
[INFO] [stderr] ...   ||
[INFO] [stderr] 596 | ||             .map(|o: VertRc| o.borrow_mut().set_edge_rc(& next)); // e.n.o.e = e.n
[INFO] [stderr] 597 | ||         });
[INFO] [stderr]     | ||__________^- help: try this: `if let Some(next) = edge_b.next.upgrade() { ... }`
[INFO] [stderr]     | |___________|
[INFO] [stderr]     | 
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]    --> src/mesh.rs:595:11
[INFO] [stderr]     |
[INFO] [stderr] 595 |              next_bm.origin.upgrade()
[INFO] [stderr]     |   ___________^
[INFO] [stderr]     |  |___________|
[INFO] [stderr]     | ||
[INFO] [stderr] 596 | ||             .map(|o: VertRc| o.borrow_mut().set_edge_rc(& next)); // e.n.o.e = e.n
[INFO] [stderr]     | ||________________________________________________________________^- help: try this: `if let Some(o) = next_bm.origin.upgrade() { o.borrow_mut().set_edge_rc(& next) }`
[INFO] [stderr]     | |_________________________________________________________________|
[INFO] [stderr]     | 
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/util.rs:30:7
[INFO] [stderr]    |
[INFO] [stderr] 30 |   for ref edge in mesh.edges.values() {
[INFO] [stderr]    |       ^^^^^^^^    ------------------- help: try: `let edge = &mesh.edges.values();`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/util.rs:40:7
[INFO] [stderr]    |
[INFO] [stderr] 40 |   for ref edge in mesh.edges.values() {
[INFO] [stderr]    |       ^^^^^^^^    ------------------- help: try: `let edge = &mesh.edges.values();`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/util.rs:77:7
[INFO] [stderr]    |
[INFO] [stderr] 77 |   for ref edge in mesh.edges.values() {
[INFO] [stderr]    |       ^^^^^^^^    ------------------- help: try: `let edge = &mesh.edges.values();`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/util.rs:87:7
[INFO] [stderr]    |
[INFO] [stderr] 87 |   for ref edge in mesh.edges.values() {
[INFO] [stderr]    |       ^^^^^^^^    ------------------- help: try: `let edge = &mesh.edges.values();`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]    --> src/mesh.rs:337:7
[INFO] [stderr]     |
[INFO] [stderr] 337 |       base_edge.borrow().origin.upgrade().map(|o| o.borrow_mut().take_edge(Ptr::new(base_edge)));
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stderr]     |       |
[INFO] [stderr]     |       help: try this: `if let Some(o) = base_edge.borrow().origin.upgrade() { o.borrow_mut().take_edge(Ptr::new(base_edge)) }`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::option_map_unit_fn)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]    --> src/mesh.rs:420:11
[INFO] [stderr]     |
[INFO] [stderr] 420 |           face_edge.borrow().get_origin().map(|o| o.borrow_mut().set_edge_rc(& face_edge));
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stderr]     |           |
[INFO] [stderr]     |           help: try this: `if let Some(o) = face_edge.borrow().get_origin() { o.borrow_mut().set_edge_rc(& face_edge) }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]    --> src/mesh.rs:589:7
[INFO] [stderr]     |
[INFO] [stderr] 589 |          edge_b.next.upgrade()
[INFO] [stderr]     |   _______^
[INFO] [stderr]     |  |_______|
[INFO] [stderr]     | ||
[INFO] [stderr] 590 | ||         .map(|next: EdgeRc| {
[INFO] [stderr] 591 | ||           let mut next_bm = next.borrow_mut();
[INFO] [stderr] 592 | ||           next_bm.set_face_rc(& new_face); // e.n.f = n_f
[INFO] [stderr] ...   ||
[INFO] [stderr] 596 | ||             .map(|o: VertRc| o.borrow_mut().set_edge_rc(& next)); // e.n.o.e = e.n
[INFO] [stderr] 597 | ||         });
[INFO] [stderr]     | ||__________^- help: try this: `if let Some(next) = edge_b.next.upgrade() { ... }`
[INFO] [stderr]     | |___________|
[INFO] [stderr]     | 
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]    --> src/mesh.rs:595:11
[INFO] [stderr]     |
[INFO] [stderr] 595 |              next_bm.origin.upgrade()
[INFO] [stderr]     |   ___________^
[INFO] [stderr]     |  |___________|
[INFO] [stderr]     | ||
[INFO] [stderr] 596 | ||             .map(|o: VertRc| o.borrow_mut().set_edge_rc(& next)); // e.n.o.e = e.n
[INFO] [stderr]     | ||________________________________________________________________^- help: try this: `if let Some(o) = next_bm.origin.upgrade() { o.borrow_mut().set_edge_rc(& next) }`
[INFO] [stderr]     | |_________________________________________________________________|
[INFO] [stderr]     | 
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/util.rs:30:7
[INFO] [stderr]    |
[INFO] [stderr] 30 |   for ref edge in mesh.edges.values() {
[INFO] [stderr]    |       ^^^^^^^^    ------------------- help: try: `let edge = &mesh.edges.values();`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/util.rs:40:7
[INFO] [stderr]    |
[INFO] [stderr] 40 |   for ref edge in mesh.edges.values() {
[INFO] [stderr]    |       ^^^^^^^^    ------------------- help: try: `let edge = &mesh.edges.values();`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/util.rs:77:7
[INFO] [stderr]    |
[INFO] [stderr] 77 |   for ref edge in mesh.edges.values() {
[INFO] [stderr]    |       ^^^^^^^^    ------------------- help: try: `let edge = &mesh.edges.values();`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/util.rs:87:7
[INFO] [stderr]    |
[INFO] [stderr] 87 |   for ref edge in mesh.edges.values() {
[INFO] [stderr]    |       ^^^^^^^^    ------------------- help: try: `let edge = &mesh.edges.values();`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.32s
[INFO] running `"docker" "inspect" "d592ee3b41dc3837f2060ddde91a99ec1506d8ff1484080c783c943d3e1ab0a3"`
[INFO] running `"docker" "rm" "-f" "d592ee3b41dc3837f2060ddde91a99ec1506d8ff1484080c783c943d3e1ab0a3"`
[INFO] [stdout] d592ee3b41dc3837f2060ddde91a99ec1506d8ff1484080c783c943d3e1ab0a3