[INFO] fetching crate graphlib 0.6.3...
[INFO] checking graphlib-0.6.3 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate graphlib 0.6.3 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate graphlib 0.6.3
[INFO] finished tweaking crates.io crate graphlib 0.6.3
[INFO] tweaked toml for crates.io crate graphlib 0.6.3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate graphlib 0.6.3 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate graphlib 0.6.3 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb76d9132aa3d8eac24d0b6b02dae9a72dfb640823008e4bd61db29cc3cdad26
[INFO] running `Command { std: "docker" "start" "-a" "fb76d9132aa3d8eac24d0b6b02dae9a72dfb640823008e4bd61db29cc3cdad26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb76d9132aa3d8eac24d0b6b02dae9a72dfb640823008e4bd61db29cc3cdad26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb76d9132aa3d8eac24d0b6b02dae9a72dfb640823008e4bd61db29cc3cdad26", kill_on_drop: false }`
[INFO] [stdout] fb76d9132aa3d8eac24d0b6b02dae9a72dfb640823008e4bd61db29cc3cdad26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1a4ff498a6ea6739a288d2b036152d2e188eb127a8be3bcc001122974674b4c
[INFO] running `Command { std: "docker" "start" "-a" "a1a4ff498a6ea6739a288d2b036152d2e188eb127a8be3bcc001122974674b4c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling serde_json v1.0.69
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]     Checking plotters-backend v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking ahash v0.2.19
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_isaac v0.2.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking plotters-svg v0.3.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking graphlib v0.6.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `matches` and `matches_any` are never used
[INFO] [stdout]   --> src/edge.rs:43:19
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl Edge {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub(crate) fn matches(&self, a: &VertexId, b: &VertexId) -> bool {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub(crate) fn matches_any(&self, id: &VertexId) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/iterators/bfs.rs:35:44
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn new(graph: &'a Graph<T>) -> Bfs<'_, T> {
[INFO] [stdout]    |                        --                  ^^ the same lifetime is elided here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is named 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: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 35 -     pub fn new(graph: &'a Graph<T>) -> Bfs<'_, T> {
[INFO] [stdout] 35 +     pub fn new(graph: &'a Graph<T>) -> Bfs<'a, T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/iterators/dfs.rs:42:44
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn new(graph: &'a Graph<T>) -> Dfs<'_, T> {
[INFO] [stdout]    |                        --                  ^^ the same lifetime is elided here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 42 -     pub fn new(graph: &'a Graph<T>) -> Dfs<'_, T> {
[INFO] [stdout] 42 +     pub fn new(graph: &'a Graph<T>) -> Dfs<'a, T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/iterators/dijkstra.rs:100:64
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub fn get_path_to(mut self, vert: &'a VertexId) -> Result<VertexIter, GraphErr> {
[INFO] [stdout]     |                                         --                     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                         |
[INFO] [stdout]     |                                         the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub fn get_path_to(mut self, vert: &'a VertexId) -> Result<VertexIter<'a>, GraphErr> {
[INFO] [stdout]     |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/iterators/topo.rs:33:45
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn new(graph: &'a Graph<T>) -> Topo<'_, T> {
[INFO] [stdout]    |                        --                   ^^ the same lifetime is elided here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 33 -     pub fn new(graph: &'a Graph<T>) -> Topo<'_, T> {
[INFO] [stdout] 33 +     pub fn new(graph: &'a Graph<T>) -> Topo<'a, T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking criterion-plot v0.4.4
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking criterion v0.3.5
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> examples/dot.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut f = File::create("example1.dot").unwrap();
[INFO] [stdout]   |         ----^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]  --> examples/dot.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut f = File::create("example1.dot").unwrap();
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]     --> src/graph.rs:1844:13
[INFO] [stdout]      |
[INFO] [stdout] 1844 |         let id = VertexId::random();
[INFO] [stdout]      |             ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> benches/benchmark.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     dfs!("dfs_10", 10);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[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] 56 |     let _ = dfs!("dfs_10", 10);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> benches/benchmark.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     dfs!("dfs_100", 100);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let _ = dfs!("dfs_100", 100);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> benches/benchmark.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     dfs!("dfs_500", 500);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let _ = dfs!("dfs_500", 500);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> benches/benchmark.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     dfs!("dfs_1000", 1000);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let _ = dfs!("dfs_1000", 1000);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> benches/benchmark.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 |     bfs!("bfs_10", 10);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let _ = bfs!("bfs_10", 10);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> benches/benchmark.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 |     bfs!("bfs_100", 100);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let _ = bfs!("bfs_100", 100);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> benches/benchmark.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     bfs!("bfs_500", 500);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let _ = bfs!("bfs_500", 500);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> benches/benchmark.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     bfs!("bfs_1000", 1000);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let _ = bfs!("bfs_1000", 1000);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 113 |     topo!("topo_10", 10);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 113 |     let _ = topo!("topo_10", 10);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:114:5
[INFO] [stdout]     |
[INFO] [stdout] 114 |     topo!("topo_100", 100);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 114 |     let _ = topo!("topo_100", 100);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 115 |     topo!("topo_500", 500);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 115 |     let _ = topo!("topo_500", 500);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     topo!("topo_1000", 1000);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 116 |     let _ = topo!("topo_1000", 1000);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:168:5
[INFO] [stdout]     |
[INFO] [stdout] 168 |     roots!("roots_10", 10);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 168 |     let _ = roots!("roots_10", 10);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:169:5
[INFO] [stdout]     |
[INFO] [stdout] 169 |     roots!("roots_100", 100);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 169 |     let _ = roots!("roots_100", 100);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:170:5
[INFO] [stdout]     |
[INFO] [stdout] 170 |     roots!("roots_500", 500);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 170 |     let _ = roots!("roots_500", 500);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:171:5
[INFO] [stdout]     |
[INFO] [stdout] 171 |     roots!("roots_1000", 1000);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 171 |     let _ = roots!("roots_1000", 1000);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:203:5
[INFO] [stdout]     |
[INFO] [stdout] 203 |     neighbors_count!("neighbors_count_10", 10);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 203 |     let _ = neighbors_count!("neighbors_count_10", 10);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:204:5
[INFO] [stdout]     |
[INFO] [stdout] 204 |     neighbors_count!("neighbors_count_100", 100);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 204 |     let _ = neighbors_count!("neighbors_count_100", 100);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:205:5
[INFO] [stdout]     |
[INFO] [stdout] 205 |     neighbors_count!("neighbors_count_500", 500);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 205 |     let _ = neighbors_count!("neighbors_count_500", 500);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:206:5
[INFO] [stdout]     |
[INFO] [stdout] 206 |     neighbors_count!("neighbors_count_1000", 1000);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 206 |     let _ = neighbors_count!("neighbors_count_1000", 1000);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:228:5
[INFO] [stdout]     |
[INFO] [stdout] 228 |     in_neighbors_count!("in_neighbors_count_10", 10);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 228 |     let _ = in_neighbors_count!("in_neighbors_count_10", 10);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:229:5
[INFO] [stdout]     |
[INFO] [stdout] 229 |     in_neighbors_count!("in_neighbors_count_100", 100);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 229 |     let _ = in_neighbors_count!("in_neighbors_count_100", 100);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:230:5
[INFO] [stdout]     |
[INFO] [stdout] 230 |     in_neighbors_count!("in_neighbors_count_500", 500);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 230 |     let _ = in_neighbors_count!("in_neighbors_count_500", 500);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:231:5
[INFO] [stdout]     |
[INFO] [stdout] 231 |     in_neighbors_count!("in_neighbors_count_1000", 1000);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 231 |     let _ = in_neighbors_count!("in_neighbors_count_1000", 1000);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:254:5
[INFO] [stdout]     |
[INFO] [stdout] 254 |     out_neighbors_count!("out_neighbors_count_10", 10);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 254 |     let _ = out_neighbors_count!("out_neighbors_count_10", 10);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:255:5
[INFO] [stdout]     |
[INFO] [stdout] 255 |     out_neighbors_count!("out_neighbors_count_100", 100);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 255 |     let _ = out_neighbors_count!("out_neighbors_count_100", 100);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:256:5
[INFO] [stdout]     |
[INFO] [stdout] 256 |     out_neighbors_count!("out_neighbors_count_500", 500);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 256 |     let _ = out_neighbors_count!("out_neighbors_count_500", 500);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:257:5
[INFO] [stdout]     |
[INFO] [stdout] 257 |     out_neighbors_count!("out_neighbors_count_1000", 1000);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 257 |     let _ = out_neighbors_count!("out_neighbors_count_1000", 1000);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:282:5
[INFO] [stdout]     |
[INFO] [stdout] 282 |     in_neighbors!("in_neighbors_10", 10);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 282 |     let _ = in_neighbors!("in_neighbors_10", 10);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:283:5
[INFO] [stdout]     |
[INFO] [stdout] 283 |     in_neighbors!("in_neighbors_100", 100);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 283 |     let _ = in_neighbors!("in_neighbors_100", 100);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:284:5
[INFO] [stdout]     |
[INFO] [stdout] 284 |     in_neighbors!("in_neighbors_500", 500);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 284 |     let _ = in_neighbors!("in_neighbors_500", 500);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:285:5
[INFO] [stdout]     |
[INFO] [stdout] 285 |     in_neighbors!("in_neighbors_1000", 1000);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 285 |     let _ = in_neighbors!("in_neighbors_1000", 1000);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:311:5
[INFO] [stdout]     |
[INFO] [stdout] 311 |     out_neighbors!("out_neighbors_10", 10);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let _ = out_neighbors!("out_neighbors_10", 10);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:312:5
[INFO] [stdout]     |
[INFO] [stdout] 312 |     out_neighbors!("out_neighbors_100", 100);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 312 |     let _ = out_neighbors!("out_neighbors_100", 100);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:313:5
[INFO] [stdout]     |
[INFO] [stdout] 313 |     out_neighbors!("out_neighbors_500", 500);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 313 |     let _ = out_neighbors!("out_neighbors_500", 500);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:314:5
[INFO] [stdout]     |
[INFO] [stdout] 314 |     out_neighbors!("out_neighbors_1000", 1000);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 314 |     let _ = out_neighbors!("out_neighbors_1000", 1000);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:340:5
[INFO] [stdout]     |
[INFO] [stdout] 340 |     neighbors!("neighbors_10", 10);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 340 |     let _ = neighbors!("neighbors_10", 10);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:341:5
[INFO] [stdout]     |
[INFO] [stdout] 341 |     neighbors!("neighbors_100", 100);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 341 |     let _ = neighbors!("neighbors_100", 100);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:342:5
[INFO] [stdout]     |
[INFO] [stdout] 342 |     neighbors!("neighbors_500", 500);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 342 |     let _ = neighbors!("neighbors_500", 500);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:343:5
[INFO] [stdout]     |
[INFO] [stdout] 343 |     neighbors!("neighbors_1000", 1000);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 343 |     let _ = neighbors!("neighbors_1000", 1000);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:382:5
[INFO] [stdout]     |
[INFO] [stdout] 382 |     add_edge!("add_edge_10", 10);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 382 |     let _ = add_edge!("add_edge_10", 10);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:383:5
[INFO] [stdout]     |
[INFO] [stdout] 383 |     add_edge!("add_edge_100", 100);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 383 |     let _ = add_edge!("add_edge_100", 100);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:384:5
[INFO] [stdout]     |
[INFO] [stdout] 384 |     add_edge!("add_edge_500", 500);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 384 |     let _ = add_edge!("add_edge_500", 500);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:385:5
[INFO] [stdout]     |
[INFO] [stdout] 385 |     add_edge!("add_edge_1000", 1000);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 385 |     let _ = add_edge!("add_edge_1000", 1000);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:405:5
[INFO] [stdout]     |
[INFO] [stdout] 405 |     add_edge_cycle_check!("add_edge_cycle_check_10", 10);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 405 |     let _ = add_edge_cycle_check!("add_edge_cycle_check_10", 10);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:406:5
[INFO] [stdout]     |
[INFO] [stdout] 406 |     add_edge_cycle_check!("add_edge_cycle_check_100", 100);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 406 |     let _ = add_edge_cycle_check!("add_edge_cycle_check_100", 100);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:407:5
[INFO] [stdout]     |
[INFO] [stdout] 407 |     add_edge_cycle_check!("add_edge_cycle_check_500", 500);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 407 |     let _ = add_edge_cycle_check!("add_edge_cycle_check_500", 500);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:408:5
[INFO] [stdout]     |
[INFO] [stdout] 408 |     add_edge_cycle_check!("add_edge_cycle_check_1000", 1000);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 408 |     let _ = add_edge_cycle_check!("add_edge_cycle_check_1000", 1000);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:467:5
[INFO] [stdout]     |
[INFO] [stdout] 467 |     edge_count!("edge_count_10", 10);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 467 |     let _ = edge_count!("edge_count_10", 10);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:468:5
[INFO] [stdout]     |
[INFO] [stdout] 468 |     edge_count!("edge_count_100", 100);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 468 |     let _ = edge_count!("edge_count_100", 100);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:469:5
[INFO] [stdout]     |
[INFO] [stdout] 469 |     edge_count!("edge_count_500", 500);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 469 |     let _ = edge_count!("edge_count_500", 500);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:470:5
[INFO] [stdout]     |
[INFO] [stdout] 470 |     edge_count!("edge_count_1000", 1000);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 470 |     let _ = edge_count!("edge_count_1000", 1000);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:589:5
[INFO] [stdout]     |
[INFO] [stdout] 589 |     is_cyclic!("is_cyclic_10", 10);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 589 |     let _ = is_cyclic!("is_cyclic_10", 10);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:590:5
[INFO] [stdout]     |
[INFO] [stdout] 590 |     is_cyclic!("is_cyclic_100", 100);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 590 |     let _ = is_cyclic!("is_cyclic_100", 100);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:591:5
[INFO] [stdout]     |
[INFO] [stdout] 591 |     is_cyclic!("is_cyclic_500", 500);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 591 |     let _ = is_cyclic!("is_cyclic_500", 500);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:592:5
[INFO] [stdout]     |
[INFO] [stdout] 592 |     is_cyclic!("is_cyclic_1000", 1000);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 592 |     let _ = is_cyclic!("is_cyclic_1000", 1000);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:634:5
[INFO] [stdout]     |
[INFO] [stdout] 634 |     remove_edge!("remove_edge_10", 10);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 634 |     let _ = remove_edge!("remove_edge_10", 10);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:635:5
[INFO] [stdout]     |
[INFO] [stdout] 635 |     remove_edge!("remove_edge_100", 100);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 635 |     let _ = remove_edge!("remove_edge_100", 100);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:636:5
[INFO] [stdout]     |
[INFO] [stdout] 636 |     remove_edge!("remove_edge_500", 500);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 636 |     let _ = remove_edge!("remove_edge_500", 500);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:637:5
[INFO] [stdout]     |
[INFO] [stdout] 637 |     remove_edge!("remove_edge_1000", 1000);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 637 |     let _ = remove_edge!("remove_edge_1000", 1000);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:703:5
[INFO] [stdout]     |
[INFO] [stdout] 703 |     roots_count!("roots_count_10", 10);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 703 |     let _ = roots_count!("roots_count_10", 10);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:704:5
[INFO] [stdout]     |
[INFO] [stdout] 704 |     roots_count!("roots_count_100", 100);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 704 |     let _ = roots_count!("roots_count_100", 100);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:705:5
[INFO] [stdout]     |
[INFO] [stdout] 705 |     roots_count!("roots_count_500", 500);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 705 |     let _ = roots_count!("roots_count_500", 500);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:706:5
[INFO] [stdout]     |
[INFO] [stdout] 706 |     roots_count!("roots_count_1000", 1000);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 706 |     let _ = roots_count!("roots_count_1000", 1000);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/iterators/dijkstra.rs:247:13
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let mut iterator = Dijkstra::new(&graph, &v1).unwrap();
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `matches` and `matches_any` are never used
[INFO] [stdout]   --> src/edge.rs:43:19
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl Edge {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub(crate) fn matches(&self, a: &VertexId, b: &VertexId) -> bool {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub(crate) fn matches_any(&self, id: &VertexId) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/iterators/bfs.rs:35:44
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn new(graph: &'a Graph<T>) -> Bfs<'_, T> {
[INFO] [stdout]    |                        --                  ^^ the same lifetime is elided here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is named 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: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 35 -     pub fn new(graph: &'a Graph<T>) -> Bfs<'_, T> {
[INFO] [stdout] 35 +     pub fn new(graph: &'a Graph<T>) -> Bfs<'a, T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/iterators/dfs.rs:42:44
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn new(graph: &'a Graph<T>) -> Dfs<'_, T> {
[INFO] [stdout]    |                        --                  ^^ the same lifetime is elided here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 42 -     pub fn new(graph: &'a Graph<T>) -> Dfs<'_, T> {
[INFO] [stdout] 42 +     pub fn new(graph: &'a Graph<T>) -> Dfs<'a, T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/iterators/dfs.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |         graph.add_edge(&v1, &v2);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[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] 197 |         let _ = graph.add_edge(&v1, &v2);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/iterators/dfs.rs:198:9
[INFO] [stdout]     |
[INFO] [stdout] 198 |         graph.add_edge(&v3, &v2);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 198 |         let _ = graph.add_edge(&v3, &v2);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/iterators/dijkstra.rs:100:64
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub fn get_path_to(mut self, vert: &'a VertexId) -> Result<VertexIter, GraphErr> {
[INFO] [stdout]     |                                         --                     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                         |
[INFO] [stdout]     |                                         the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub fn get_path_to(mut self, vert: &'a VertexId) -> Result<VertexIter<'a>, GraphErr> {
[INFO] [stdout]     |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/iterators/dijkstra.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         graph.add_edge_with_weight(&v1, &v2, 0.0);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 202 |         let _ = graph.add_edge_with_weight(&v1, &v2, 0.0);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/iterators/dijkstra.rs:215:9
[INFO] [stdout]     |
[INFO] [stdout] 215 |         graph.add_edge_with_weight(&v1, &v2, -0.1);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 215 |         let _ = graph.add_edge_with_weight(&v1, &v2, -0.1);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/iterators/dijkstra.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |         graph.add_edge_with_weight(&v2, &v1, 0.1);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 216 |         let _ = graph.add_edge_with_weight(&v2, &v1, 0.1);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/iterators/dijkstra.rs:230:9
[INFO] [stdout]     |
[INFO] [stdout] 230 |         graph.add_edge_with_weight(&v1, &v2, 0.0);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 230 |         let _ = graph.add_edge_with_weight(&v1, &v2, 0.0);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/iterators/dijkstra.rs:245:9
[INFO] [stdout]     |
[INFO] [stdout] 245 |         graph.add_edge_with_weight(&v1, &v2, 0.0);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 245 |         let _ = graph.add_edge_with_weight(&v1, &v2, 0.0);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/iterators/dijkstra.rs:260:9
[INFO] [stdout]     |
[INFO] [stdout] 260 |         graph.add_edge_with_weight(&v1, &v2, 0.0);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 260 |         let _ = graph.add_edge_with_weight(&v1, &v2, 0.0);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/iterators/dijkstra.rs:315:9
[INFO] [stdout]     |
[INFO] [stdout] 315 |         iterator.set_source(&v_c);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 315 |         let _ = iterator.set_source(&v_c);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/iterators/topo.rs:33:45
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn new(graph: &'a Graph<T>) -> Topo<'_, T> {
[INFO] [stdout]    |                        --                   ^^ the same lifetime is elided here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 33 -     pub fn new(graph: &'a Graph<T>) -> Topo<'_, T> {
[INFO] [stdout] 33 +     pub fn new(graph: &'a Graph<T>) -> Topo<'a, T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.38s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 8`
[INFO] running `Command { std: "docker" "inspect" "a1a4ff498a6ea6739a288d2b036152d2e188eb127a8be3bcc001122974674b4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1a4ff498a6ea6739a288d2b036152d2e188eb127a8be3bcc001122974674b4c", kill_on_drop: false }`
[INFO] [stdout] a1a4ff498a6ea6739a288d2b036152d2e188eb127a8be3bcc001122974674b4c
