[INFO] fetching crate triangulate 0.2.0...
[INFO] checking triangulate-0.2.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate triangulate 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate triangulate 0.2.0
[INFO] finished tweaking crates.io crate triangulate 0.2.0
[INFO] tweaked toml for crates.io crate triangulate 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate triangulate 0.2.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 88 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.4.0 (available: v0.7.0)
[INFO] [stderr]       Adding earcutr v0.3.0 (available: v0.5.0)
[INFO] [stderr]       Adding ordered-float v2.10.1 (available: v5.1.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20ef1b9500611080386f4338ffa077251f9ed6cdd2aa735a58cbcf741e6a65e5
[INFO] running `Command { std: "docker" "start" "-a" "20ef1b9500611080386f4338ffa077251f9ed6cdd2aa735a58cbcf741e6a65e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20ef1b9500611080386f4338ffa077251f9ed6cdd2aa735a58cbcf741e6a65e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20ef1b9500611080386f4338ffa077251f9ed6cdd2aa735a58cbcf741e6a65e5", kill_on_drop: false }`
[INFO] [stdout] 20ef1b9500611080386f4338ffa077251f9ed6cdd2aa735a58cbcf741e6a65e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2942caa65130e4390a2eb554dce2e3ef5becdf882bac355f8f5385d67c1dc8db
[INFO] running `Command { std: "docker" "start" "-a" "2942caa65130e4390a2eb554dce2e3ef5becdf882bac355f8f5385d67c1dc8db", kill_on_drop: false }`
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking textwrap v0.16.2
[INFO] [stderr]     Checking backtrace v0.3.76
[INFO] [stderr]     Checking ordered-float v2.10.1
[INFO] [stderr]     Checking zot v0.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking triangulate v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `IndexedQueryNode` is never constructed
[INFO] [stdout]   --> src/querynode.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct IndexedQueryNode<'a, V: Vertex, Index: VertexIndex>(Idx<QueryNode<V, Index>>, &'a QueryNode<V, Index>);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `ps`, `ns`, `ss`, `ts`, and `find_trapezoid` are never used
[INFO] [stdout]   --> src/trapezoidation.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | trait TrapezoidationStructure<'p, P: PolygonList<'p> + ?Sized + 'p> {
[INFO] [stdout]    |       ----------------------- methods in this trait
[INFO] [stdout] 15 |     fn ps(&self) -> PolygonListExt<'p, P>;
[INFO] [stdout]    |        ^^
[INFO] [stdout] 16 |     fn ns(&self) -> &[Nexus<P::Vertex, P::Index>];
[INFO] [stdout]    |        ^^
[INFO] [stdout] 17 |     fn ss(&self) -> &[Segment<P::Vertex, P::Index>];
[INFO] [stdout]    |        ^^
[INFO] [stdout] 18 |     fn ts(&self) -> &[Trapezoid<P::Vertex, P::Index>];
[INFO] [stdout]    |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn find_trapezoid(&self, c: Coords<<P::Vertex as Vertex>::Coordinate>) -> (Idx<QueryNode<P::Vertex, P::Index>>, Idx<Trapezoid<P::Vert...
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Sealed` is never used
[INFO] [stdout]    --> src/inputs/polygon_list.rs:377:15
[INFO] [stdout]     |
[INFO] [stdout] 377 |     pub trait Sealed { }
[INFO] [stdout]     |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/idx.rs:194:19
[INFO] [stdout]     |
[INFO] [stdout] 194 |     fn iter_index(&self) -> SliceIndexIter<T>;
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 194 |     fn iter_index(&self) -> SliceIndexIter<'_, T>;
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/idx.rs:204:19
[INFO] [stdout]     |
[INFO] [stdout] 204 |     fn iter_index(&self) -> SliceIndexIter<T> {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 204 |     fn iter_index(&self) -> SliceIndexIter<'_, T> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/idx.rs:210:19
[INFO] [stdout]     |
[INFO] [stdout] 210 |     fn iter_index(&self) -> SliceIndexIter<T> {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 210 |     fn iter_index(&self) -> SliceIndexIter<'_, T> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<IndexedFanBuilder<'_, P, FS>, Infallible>
[INFO] [stdout]   --> src/outputs/formats/indexed_fan.rs:27:224
[INFO] [stdout]    |
[INFO] [stdout] 27 |       fn initialize(self, polygon_list: &'p P, vi0: <P as PolygonList<'p>>::Index, vi1: <P as PolygonList<'p>>::Index, vi2: <P as PolygonList<'p>>::Index) -> Result<Self::Builder, <Self::Builder as FanBuilder<'p, P>>::Error> {
[INFO] [stdout]    |  ________________________________________________________________________________________________________________________________________________________________________________________________________________________________^
[INFO] [stdout] 28 | |         IndexedFanBuilder::new(self.fans, polygon_list, vi0, vi1, vi2)
[INFO] [stdout] 29 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<IndexedFanBuilder<'_, P, FS>, Infallible>
[INFO] [stdout]   --> src/outputs/formats/indexed_fan.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         IndexedFanBuilder::new(self.fans, polygon_list, vi0, vi1, vi2)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<IndexedFanBuilder<'_, P, FS>, Infallible>
[INFO] [stdout]   --> src/outputs/formats/indexed_fan.rs:39:204
[INFO] [stdout]    |
[INFO] [stdout] 39 |       fn new(fans: FS, _polygon_list: &'p P, vi0: <P as PolygonList<'p>>::Index, vi1: <P as PolygonList<'p>>::Index, vi2: <P as PolygonList<'p>>::Index) -> Result<Self, <Self as FanBuilder<'p, P>>::Error> {
[INFO] [stdout]    |  ____________________________________________________________________________________________________________________________________________________________________________________________________________^
[INFO] [stdout] 40 | |         let fans = GenericFans::new(fans, vi0, vi1, vi2);
[INFO] [stdout] 41 | |         let fb = Self {
[INFO] [stdout] 42 | |             fans,
[INFO] [stdout] ...  |
[INFO] [stdout] 45 | |         Ok(fb)
[INFO] [stdout] 46 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<IndexedFanBuilder<'_, P, FS>, Infallible>
[INFO] [stdout]   --> src/outputs/formats/indexed_fan.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         Ok(fb)
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<DeindexedFanBuilder<'_, P, FS>, Infallible>
[INFO] [stdout]   --> src/outputs/formats/deindexed_fan.rs:30:224
[INFO] [stdout]    |
[INFO] [stdout] 30 |       fn initialize(self, polygon_list: &'p P, vi0: <P as PolygonList<'p>>::Index, vi1: <P as PolygonList<'p>>::Index, vi2: <P as PolygonList<'p>>::Index) -> Result<Self::Builder, <Self::Builder as FanBuilder<'p, P>>::Error> {
[INFO] [stdout]    |  ________________________________________________________________________________________________________________________________________________________________________________________________________________________________^
[INFO] [stdout] 31 | |         DeindexedFanBuilder::new(self.fans, polygon_list, vi0, vi1, vi2)
[INFO] [stdout] 32 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<DeindexedFanBuilder<'_, P, FS>, Infallible>
[INFO] [stdout]   --> src/outputs/formats/deindexed_fan.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         DeindexedFanBuilder::new(self.fans, polygon_list, vi0, vi1, vi2)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<DeindexedFanBuilder<'_, P, FS>, Infallible>
[INFO] [stdout]   --> src/outputs/formats/deindexed_fan.rs:45:203
[INFO] [stdout]    |
[INFO] [stdout] 45 |       fn new(fans: FS, polygon_list: &'p P, vi0: <P as PolygonList<'p>>::Index, vi1: <P as PolygonList<'p>>::Index, vi2: <P as PolygonList<'p>>::Index) -> Result<Self, <Self as FanBuilder<'p, P>>::Error> {
[INFO] [stdout]    |  ___________________________________________________________________________________________________________________________________________________________________________________________________________^
[INFO] [stdout] 46 | |         let (v0, v1, v2) = (polygon_list.get_vertex(vi0).clone(), polygon_list.get_vertex(vi1).clone(), polygon_list.get_vertex(vi2).clone());
[INFO] [stdout] 47 | |         let fans = GenericFans::new(fans, v0, v1, v2);
[INFO] [stdout] 48 | |         let fb = Self {
[INFO] [stdout] ...  |
[INFO] [stdout] 53 | |         Ok(fb)
[INFO] [stdout] 54 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<DeindexedFanBuilder<'_, P, FS>, Infallible>
[INFO] [stdout]   --> src/outputs/formats/deindexed_fan.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         Ok(fb)
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<IndexedListBuilder<'_, P, L>, Infallible>
[INFO] [stdout]   --> src/outputs/formats/indexed_list.rs:24:117
[INFO] [stdout]    |
[INFO] [stdout] 24 |       fn initialize(self, polygon_list: &'p P) -> Result<Self::Builder, <Self::Builder as ListBuilder<'p, P>>::Error> {
[INFO] [stdout]    |  _____________________________________________________________________________________________________________________^
[INFO] [stdout] 25 | |         IndexedListBuilder::new(self.list, polygon_list)
[INFO] [stdout] 26 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<IndexedListBuilder<'_, P, L>, Infallible>
[INFO] [stdout]   --> src/outputs/formats/indexed_list.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         IndexedListBuilder::new(self.list, polygon_list)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<IndexedListBuilder<'_, P, L>, Infallible>
[INFO] [stdout]   --> src/outputs/formats/indexed_list.rs:34:96
[INFO] [stdout]    |
[INFO] [stdout] 34 |       fn new(list: L, _polygon_list: &'p P) -> Result<Self, <Self as ListBuilder<'p, P>>::Error> {
[INFO] [stdout]    |  ________________________________________________________________________________________________^
[INFO] [stdout] 35 | |         let list = GenericList::new(list);
[INFO] [stdout] 36 | |         let l = Self {
[INFO] [stdout] 37 | |             list,
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |         Ok(l)
[INFO] [stdout] 41 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<IndexedListBuilder<'_, P, L>, Infallible>
[INFO] [stdout]   --> src/outputs/formats/indexed_list.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         Ok(l)
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<DeindexedListBuilder<'_, P, L>, Infallible>
[INFO] [stdout]   --> src/outputs/formats/deindexed_list.rs:27:117
[INFO] [stdout]    |
[INFO] [stdout] 27 |       fn initialize(self, polygon_list: &'p P) -> Result<Self::Builder, <Self::Builder as ListBuilder<'p, P>>::Error> {
[INFO] [stdout]    |  _____________________________________________________________________________________________________________________^
[INFO] [stdout] 28 | |         DeindexedListBuilder::new(self.list, polygon_list)
[INFO] [stdout] 29 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<DeindexedListBuilder<'_, P, L>, Infallible>
[INFO] [stdout]   --> src/outputs/formats/deindexed_list.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         DeindexedListBuilder::new(self.list, polygon_list)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<DeindexedListBuilder<'_, P, L>, Infallible>
[INFO] [stdout]   --> src/outputs/formats/deindexed_list.rs:40:95
[INFO] [stdout]    |
[INFO] [stdout] 40 |       fn new(list: L, polygon_list: &'p P) -> Result<Self, <Self as ListBuilder<'p, P>>::Error> {
[INFO] [stdout]    |  _______________________________________________________________________________________________^
[INFO] [stdout] 41 | |         let list = GenericList::new(list);
[INFO] [stdout] 42 | |         let l = Self {
[INFO] [stdout] 43 | |             list,
[INFO] [stdout] ...  |
[INFO] [stdout] 47 | |         Ok(l)
[INFO] [stdout] 48 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<DeindexedListBuilder<'_, P, L>, Infallible>
[INFO] [stdout]   --> src/outputs/formats/deindexed_list.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |         Ok(l)
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `triangulate` (lib) due to 16 previous errors; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2942caa65130e4390a2eb554dce2e3ef5becdf882bac355f8f5385d67c1dc8db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2942caa65130e4390a2eb554dce2e3ef5becdf882bac355f8f5385d67c1dc8db", kill_on_drop: false }`
[INFO] [stdout] 2942caa65130e4390a2eb554dce2e3ef5becdf882bac355f8f5385d67c1dc8db