[INFO] fetching crate tpntree 0.5.2...
[INFO] building tpntree-0.5.2 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate tpntree 0.5.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate tpntree 0.5.2
[INFO] finished tweaking crates.io crate tpntree 0.5.2
[INFO] tweaked toml for crates.io crate tpntree 0.5.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tpntree 0.5.2 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 22 packages to latest compatible versions
[INFO] [stderr]       Adding nalgebra v0.28.0 (available: v0.34.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 825c3b12d4601a07f42b00e042ee03fe848c3e0927c4a4747f5cdc6ab557f93d
[INFO] running `Command { std: "docker" "start" "-a" "825c3b12d4601a07f42b00e042ee03fe848c3e0927c4a4747f5cdc6ab557f93d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "825c3b12d4601a07f42b00e042ee03fe848c3e0927c4a4747f5cdc6ab557f93d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "825c3b12d4601a07f42b00e042ee03fe848c3e0927c4a4747f5cdc6ab557f93d", kill_on_drop: false }`
[INFO] [stdout] 825c3b12d4601a07f42b00e042ee03fe848c3e0927c4a4747f5cdc6ab557f93d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed63f66f3b1b04d3fd401384caba4286a04084525aa0446cf9d3208c5d295ff0
[INFO] running `Command { std: "docker" "start" "-a" "ed63f66f3b1b04d3fd401384caba4286a04084525aa0446cf9d3208c5d295ff0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling simba v0.5.1
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]    Compiling nalgebra v0.28.0
[INFO] [stderr]    Compiling tpntree v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/iterators.rs:67:43
[INFO] [stdout]    |
[INFO] [stdout] 67 |                   pub fn iter_breadth_first(&self) -> BreadthFirstIterator<T $(,
[INFO] [stdout]    |  ___________________________________________^^^^^_____^
[INFO] [stdout]    | |                                           |
[INFO] [stdout]    | |                                           the lifetime is elided here
[INFO] [stdout] 68 | |                 $n
[INFO] [stdout] 69 | |             )?> {
[INFO] [stdout]    | |_______________^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tpntree/iterators.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout]  3 |   impl_breadth_first_iterator!(N);
[INFO] [stdout]    |   ------------------------------- in this macro invocation
[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]    = note: this warning originates in the macro `impl_breadth_first_iterator` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 pub fn iter_breadth_first(&self) -> BreadthFirstIterator<'_, T $(,
[INFO] [stdout]    |                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/iterators.rs:18:41
[INFO] [stdout]    |
[INFO] [stdout] 18 |                   pub fn iter_depth_first(&self) -> DepthFirstIterator<T $(,
[INFO] [stdout]    |  _________________________________________^^^^^_____^
[INFO] [stdout]    | |                                         |
[INFO] [stdout]    | |                                         the lifetime is elided here
[INFO] [stdout] 19 | |                 $n
[INFO] [stdout] 20 | |             )?> {
[INFO] [stdout]    | |_______________^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tpntree/iterators.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout]  4 |   impl_depth_first_iterator!(N);
[INFO] [stdout]    |   ----------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: this warning originates in the macro `impl_depth_first_iterator` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 pub fn iter_depth_first(&self) -> DepthFirstIterator<'_, T $(,
[INFO] [stdout]    |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/iterators.rs:67:43
[INFO] [stdout]    |
[INFO] [stdout] 67 |                   pub fn iter_breadth_first(&self) -> BreadthFirstIterator<T $(,
[INFO] [stdout]    |  ___________________________________________^^^^^_____^
[INFO] [stdout]    | |                                           |
[INFO] [stdout]    | |                                           the lifetime is elided here
[INFO] [stdout] 68 | |                 $n
[INFO] [stdout] 69 | |             )?> {
[INFO] [stdout]    | |_______________^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tpntree_dynamic/iterators.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout]  3 |   impl_breadth_first_iterator!();
[INFO] [stdout]    |   ------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: this warning originates in the macro `impl_breadth_first_iterator` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 pub fn iter_breadth_first(&self) -> BreadthFirstIterator<'_, T $(,
[INFO] [stdout]    |                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/iterators.rs:18:41
[INFO] [stdout]    |
[INFO] [stdout] 18 |                   pub fn iter_depth_first(&self) -> DepthFirstIterator<T $(,
[INFO] [stdout]    |  _________________________________________^^^^^_____^
[INFO] [stdout]    | |                                         |
[INFO] [stdout]    | |                                         the lifetime is elided here
[INFO] [stdout] 19 | |                 $n
[INFO] [stdout] 20 | |             )?> {
[INFO] [stdout]    | |_______________^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tpntree_dynamic/iterators.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout]  4 |   impl_depth_first_iterator!();
[INFO] [stdout]    |   ---------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: this warning originates in the macro `impl_depth_first_iterator` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 pub fn iter_depth_first(&self) -> DepthFirstIterator<'_, T $(,
[INFO] [stdout]    |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.60s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nalgebra v0.28.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "ed63f66f3b1b04d3fd401384caba4286a04084525aa0446cf9d3208c5d295ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed63f66f3b1b04d3fd401384caba4286a04084525aa0446cf9d3208c5d295ff0", kill_on_drop: false }`
[INFO] [stdout] ed63f66f3b1b04d3fd401384caba4286a04084525aa0446cf9d3208c5d295ff0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3887f341bf9b93b741e5f8857d5a29bbce1b7797e0ccac61e4671080b7da7937
[INFO] running `Command { std: "docker" "start" "-a" "3887f341bf9b93b741e5f8857d5a29bbce1b7797e0ccac61e4671080b7da7937", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/iterators.rs:67:43
[INFO] [stdout]    |
[INFO] [stdout] 67 |                   pub fn iter_breadth_first(&self) -> BreadthFirstIterator<T $(,
[INFO] [stdout]    |  ___________________________________________^^^^^_____^
[INFO] [stdout]    | |                                           |
[INFO] [stdout]    | |                                           the lifetime is elided here
[INFO] [stdout] 68 | |                 $n
[INFO] [stdout] 69 | |             )?> {
[INFO] [stdout]    | |_______________^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tpntree/iterators.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout]  3 |   impl_breadth_first_iterator!(N);
[INFO] [stdout]    |   ------------------------------- in this macro invocation
[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]    = note: this warning originates in the macro `impl_breadth_first_iterator` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 pub fn iter_breadth_first(&self) -> BreadthFirstIterator<'_, T $(,
[INFO] [stdout]    |                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/iterators.rs:18:41
[INFO] [stdout]    |
[INFO] [stdout] 18 |                   pub fn iter_depth_first(&self) -> DepthFirstIterator<T $(,
[INFO] [stdout]    |  _________________________________________^^^^^_____^
[INFO] [stdout]    | |                                         |
[INFO] [stdout]    | |                                         the lifetime is elided here
[INFO] [stdout] 19 | |                 $n
[INFO] [stdout] 20 | |             )?> {
[INFO] [stdout]    | |_______________^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tpntree/iterators.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout]  4 |   impl_depth_first_iterator!(N);
[INFO] [stdout]    |   ----------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: this warning originates in the macro `impl_depth_first_iterator` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 pub fn iter_depth_first(&self) -> DepthFirstIterator<'_, T $(,
[INFO] [stdout]    |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/iterators.rs:67:43
[INFO] [stdout]    |
[INFO] [stdout] 67 |                   pub fn iter_breadth_first(&self) -> BreadthFirstIterator<T $(,
[INFO] [stdout]    |  ___________________________________________^^^^^_____^
[INFO] [stdout]    | |                                           |
[INFO] [stdout]    | |                                           the lifetime is elided here
[INFO] [stdout] 68 | |                 $n
[INFO] [stdout] 69 | |             )?> {
[INFO] [stdout]    | |_______________^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tpntree_dynamic/iterators.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout]  3 |   impl_breadth_first_iterator!();
[INFO] [stdout]    |   ------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: this warning originates in the macro `impl_breadth_first_iterator` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 pub fn iter_breadth_first(&self) -> BreadthFirstIterator<'_, T $(,
[INFO] [stdout]    |                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/iterators.rs:18:41
[INFO] [stdout]    |
[INFO] [stdout] 18 |                   pub fn iter_depth_first(&self) -> DepthFirstIterator<T $(,
[INFO] [stdout]    |  _________________________________________^^^^^_____^
[INFO] [stdout]    | |                                         |
[INFO] [stdout]    | |                                         the lifetime is elided here
[INFO] [stdout] 19 | |                 $n
[INFO] [stdout] 20 | |             )?> {
[INFO] [stdout]    | |_______________^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tpntree_dynamic/iterators.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout]  4 |   impl_depth_first_iterator!();
[INFO] [stdout]    |   ---------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: this warning originates in the macro `impl_depth_first_iterator` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 pub fn iter_depth_first(&self) -> DepthFirstIterator<'_, T $(,
[INFO] [stdout]    |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tpntree v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/iterators.rs:67:43
[INFO] [stdout]    |
[INFO] [stdout] 67 |                   pub fn iter_breadth_first(&self) -> BreadthFirstIterator<T $(,
[INFO] [stdout]    |  ___________________________________________^^^^^_____^
[INFO] [stdout]    | |                                           |
[INFO] [stdout]    | |                                           the lifetime is elided here
[INFO] [stdout] 68 | |                 $n
[INFO] [stdout] 69 | |             )?> {
[INFO] [stdout]    | |_______________^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tpntree_dynamic/iterators.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout]  3 |   impl_breadth_first_iterator!();
[INFO] [stdout]    |   ------------------------------ in this macro invocation
[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]    = note: this warning originates in the macro `impl_breadth_first_iterator` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 pub fn iter_breadth_first(&self) -> BreadthFirstIterator<'_, T $(,
[INFO] [stdout]    |                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/iterators.rs:18:41
[INFO] [stdout]    |
[INFO] [stdout] 18 |                   pub fn iter_depth_first(&self) -> DepthFirstIterator<T $(,
[INFO] [stdout]    |  _________________________________________^^^^^_____^
[INFO] [stdout]    | |                                         |
[INFO] [stdout]    | |                                         the lifetime is elided here
[INFO] [stdout] 19 | |                 $n
[INFO] [stdout] 20 | |             )?> {
[INFO] [stdout]    | |_______________^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tpntree_dynamic/iterators.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout]  4 |   impl_depth_first_iterator!();
[INFO] [stdout]    |   ---------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: this warning originates in the macro `impl_depth_first_iterator` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 pub fn iter_depth_first(&self) -> DepthFirstIterator<'_, T $(,
[INFO] [stdout]    |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/iterators.rs:67:43
[INFO] [stdout]    |
[INFO] [stdout] 67 |                   pub fn iter_breadth_first(&self) -> BreadthFirstIterator<T $(,
[INFO] [stdout]    |  ___________________________________________^^^^^_____^
[INFO] [stdout]    | |                                           |
[INFO] [stdout]    | |                                           the lifetime is elided here
[INFO] [stdout] 68 | |                 $n
[INFO] [stdout] 69 | |             )?> {
[INFO] [stdout]    | |_______________^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tpntree/iterators.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout]  3 |   impl_breadth_first_iterator!(N);
[INFO] [stdout]    |   ------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: this warning originates in the macro `impl_breadth_first_iterator` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 pub fn iter_breadth_first(&self) -> BreadthFirstIterator<'_, T $(,
[INFO] [stdout]    |                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/iterators.rs:18:41
[INFO] [stdout]    |
[INFO] [stdout] 18 |                   pub fn iter_depth_first(&self) -> DepthFirstIterator<T $(,
[INFO] [stdout]    |  _________________________________________^^^^^_____^
[INFO] [stdout]    | |                                         |
[INFO] [stdout]    | |                                         the lifetime is elided here
[INFO] [stdout] 19 | |                 $n
[INFO] [stdout] 20 | |             )?> {
[INFO] [stdout]    | |_______________^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tpntree/iterators.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout]  4 |   impl_depth_first_iterator!(N);
[INFO] [stdout]    |   ----------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: this warning originates in the macro `impl_depth_first_iterator` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 pub fn iter_depth_first(&self) -> DepthFirstIterator<'_, T $(,
[INFO] [stdout]    |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::insert` that must be used
[INFO] [stdout]   --> src/tpntree/iterators.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |             child.data_mut().insert(2.0);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you intended to set a value, consider assignment instead
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 42 |             let _ = child.data_mut().insert(2.0);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::insert` that must be used
[INFO] [stdout]   --> src/tpntree/iterators.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |             child.data_mut().insert(3.0);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you intended to set a value, consider assignment instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 47 |             let _ = child.data_mut().insert(3.0);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.23s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nalgebra v0.28.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "3887f341bf9b93b741e5f8857d5a29bbce1b7797e0ccac61e4671080b7da7937", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3887f341bf9b93b741e5f8857d5a29bbce1b7797e0ccac61e4671080b7da7937", kill_on_drop: false }`
[INFO] [stdout] 3887f341bf9b93b741e5f8857d5a29bbce1b7797e0ccac61e4671080b7da7937