[INFO] cloning repository https://github.com/nmandrus1/louvain-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nmandrus1/louvain-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnmandrus1%2Flouvain-rs", kill_on_drop: false }`
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[INFO] [stdout] 5e6aea069250d4ff3399fdb62477df3b9db6134d
[INFO] testing nmandrus1/louvain-rs against master#0d162b25edd5bf0dba9a22e83b614f1113e90474 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnmandrus1%2Flouvain-rs" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nmandrus1/louvain-rs
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/nmandrus1/louvain-rs
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[INFO] validating manifest of git repo https://github.com/nmandrus1/louvain-rs on toolchain 0d162b25edd5bf0dba9a22e83b614f1113e90474
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[INFO] crate git repo https://github.com/nmandrus1/louvain-rs 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" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]    Compiling build-probe-mpi v0.1.4
[INFO] [stderr]    Compiling thiserror v1.0.62
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[INFO] [stderr]    Compiling regex v1.10.5
[INFO] [stderr]    Compiling env_filter v0.1.0
[INFO] [stderr]    Compiling env_logger v0.11.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.62
[INFO] [stderr]    Compiling mpi-derive v0.1.2
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[INFO] [stderr]    Compiling libffi v3.2.0
[INFO] [stderr]    Compiling louvain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `mpi::traits::Equivalence`
[INFO] [stdout]  --> src/louvain/communities.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use mpi::traits::Equivalence;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Directed`, `EdgeRef`, `IntoEdgeReferences`, `IntoEdges`, `IntoNeighbors`, and `IntoNodeReferences`
[INFO] [stdout]  --> src/louvain/traits.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 |     visit::{EdgeRef, IntoEdgeReferences, IntoEdges, IntoNeighbors, IntoNodeReferences},
[INFO] [stdout]   |             ^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 |     Directed,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vtx`
[INFO] [stdout]   --> src/louvain/communities.rs:71:40
[INFO] [stdout]    |
[INFO] [stdout] 71 |                 IterationStep::Process(vtx) => {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_vtx`
[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]   --> src/louvain/communities.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |             self.syncrhonize(processed_vertex);
[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] 81 |             let _ = self.syncrhonize(processed_vertex);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/louvain/graph.rs:473:24
[INFO] [stdout]     |
[INFO] [stdout] 473 |     fn process_at_rank(&self, rank: Rank) -> Process {
[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] 473 |     fn process_at_rank(&self, rank: Rank) -> Process<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/louvain/graph.rs:483:21
[INFO] [stdout]     |
[INFO] [stdout] 483 |     fn this_process(&self) -> Process {
[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] 483 |     fn this_process(&self) -> Process<'_> {
[INFO] [stdout]     |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/louvain/traits.rs:13:24
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn process_at_rank(&self, rank: Rank) -> Process;
[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] 13 |     fn process_at_rank(&self, rank: Rank) -> Process<'_>;
[INFO] [stdout]    |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/louvain/traits.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn this_process(&self) -> Process;
[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] 14 |     fn this_process(&self) -> Process<'_>;
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DistributedGraph` and `Edge`
[INFO] [stdout]  --> src/main.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use distributed_louvain::{DistributedGraph, Edge};
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mpi::traits::Communicator`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use mpi::traits::Communicator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.19s
[INFO] running `Command { std: "docker" "inspect" "94e2e678d03ec798a0ea1c280bec9de9718c5e3b034db45bbd3da3edff8a3f19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94e2e678d03ec798a0ea1c280bec9de9718c5e3b034db45bbd3da3edff8a3f19", kill_on_drop: false }`
[INFO] [stdout] 94e2e678d03ec798a0ea1c280bec9de9718c5e3b034db45bbd3da3edff8a3f19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae37d50ace6efc17104e320893a0f85625fc65891fb514f5684c5ce876628f97
[INFO] running `Command { std: "docker" "start" "-a" "ae37d50ace6efc17104e320893a0f85625fc65891fb514f5684c5ce876628f97", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `mpi::traits::Equivalence`
[INFO] [stdout]  --> src/louvain/communities.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use mpi::traits::Equivalence;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Directed`, `EdgeRef`, `IntoEdgeReferences`, `IntoEdges`, `IntoNeighbors`, and `IntoNodeReferences`
[INFO] [stdout]  --> src/louvain/traits.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 |     visit::{EdgeRef, IntoEdgeReferences, IntoEdges, IntoNeighbors, IntoNodeReferences},
[INFO] [stdout]   |             ^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 |     Directed,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vtx`
[INFO] [stdout]   --> src/louvain/communities.rs:71:40
[INFO] [stdout]    |
[INFO] [stdout] 71 |                 IterationStep::Process(vtx) => {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_vtx`
[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]   --> src/louvain/communities.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |             self.syncrhonize(processed_vertex);
[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] 81 |             let _ = self.syncrhonize(processed_vertex);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/louvain/graph.rs:473:24
[INFO] [stdout]     |
[INFO] [stdout] 473 |     fn process_at_rank(&self, rank: Rank) -> Process {
[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] 473 |     fn process_at_rank(&self, rank: Rank) -> Process<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/louvain/graph.rs:483:21
[INFO] [stdout]     |
[INFO] [stdout] 483 |     fn this_process(&self) -> Process {
[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] 483 |     fn this_process(&self) -> Process<'_> {
[INFO] [stdout]     |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/louvain/traits.rs:13:24
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn process_at_rank(&self, rank: Rank) -> Process;
[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] 13 |     fn process_at_rank(&self, rank: Rank) -> Process<'_>;
[INFO] [stdout]    |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/louvain/traits.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn this_process(&self) -> Process;
[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] 14 |     fn this_process(&self) -> Process<'_>;
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling louvain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `DistributedGraph` and `Edge`
[INFO] [stdout]  --> src/main.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use distributed_louvain::{DistributedGraph, Edge};
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mpi::traits::Communicator`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use mpi::traits::Communicator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DistributedGraph` and `Edge`
[INFO] [stdout]  --> src/main.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use distributed_louvain::{DistributedGraph, Edge};
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mpi::traits::Communicator`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use mpi::traits::Communicator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mpi::traits::Equivalence`
[INFO] [stdout]  --> src/louvain/communities.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use mpi::traits::Equivalence;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::logger`
[INFO] [stdout]    --> src/louvain/communitystate.rs:615:9
[INFO] [stdout]     |
[INFO] [stdout] 615 |     use crate::logger;
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `IntoEdgeReferences` and `IntoNeighbors`
[INFO] [stdout]  --> src/louvain/traits.rs:3:22
[INFO] [stdout]   |
[INFO] [stdout] 3 |     visit::{EdgeRef, IntoEdgeReferences, IntoEdges, IntoNeighbors, IntoNodeReferences},
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/louvain/messagemanager.rs:434:13
[INFO] [stdout]     |
[INFO] [stdout] 433 |             unimplemented!("Not needed for these tests");
[INFO] [stdout]     |             -------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 434 |             std::iter::once((CommunityID(0), 0.0))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/louvain/messagemanager.rs:447:13
[INFO] [stdout]     |
[INFO] [stdout] 446 |             unimplemented!("Not needed for these tests");
[INFO] [stdout]     |             -------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 447 |             std::iter::once(&CommunityID(0))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/louvain/messagemanager.rs:456:13
[INFO] [stdout]     |
[INFO] [stdout] 455 |             unimplemented!("Not needed for these tests");
[INFO] [stdout]     |             -------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 456 |             std::iter::once(&CommunityID(0))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IntoEdges`
[INFO] [stdout]  --> src/louvain/traits.rs:3:42
[INFO] [stdout]   |
[INFO] [stdout] 3 |     visit::{EdgeRef, IntoEdgeReferences, IntoEdges, IntoNeighbors, IntoNodeReferences},
[INFO] [stdout]   |                                          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vtx`
[INFO] [stdout]   --> src/louvain/communities.rs:71:40
[INFO] [stdout]    |
[INFO] [stdout] 71 |                 IterationStep::Process(vtx) => {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_vtx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `rank`, `owned_rows`, `row_ownership`, and `global_ecount` are never used
[INFO] [stdout]    --> src/louvain/graph.rs:533:12
[INFO] [stdout]     |
[INFO] [stdout] 528 |     impl MockInfoBuilder {
[INFO] [stdout]     |     -------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 533 |         fn rank(mut self, rank: usize) -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 543 |         fn owned_rows(mut self, owned_rows: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 548 |         fn row_ownership(mut self, row_ownership: Vec<(usize, usize)>) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 558 |         fn global_ecount(mut self, global_ecount: usize) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/louvain/communities.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |             self.syncrhonize(processed_vertex);
[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] 81 |             let _ = self.syncrhonize(processed_vertex);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `Iterator` that must be used
[INFO] [stdout]    --> src/louvain/communitystate.rs:688:13
[INFO] [stdout]     |
[INFO] [stdout] 688 |             state_manager.get_community_members(&CommunityID(10));
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: iterators are lazy and do nothing unless consumed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/louvain/graph.rs:473:24
[INFO] [stdout]     |
[INFO] [stdout] 473 |     fn process_at_rank(&self, rank: Rank) -> Process {
[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] 473 |     fn process_at_rank(&self, rank: Rank) -> Process<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/louvain/graph.rs:483:21
[INFO] [stdout]     |
[INFO] [stdout] 483 |     fn this_process(&self) -> Process {
[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] 483 |     fn this_process(&self) -> Process<'_> {
[INFO] [stdout]     |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&mpi::topology::SimpleCommunicator` does not permit zero-initialization
[INFO] [stdout]    --> src/louvain/graph.rs:580:26
[INFO] [stdout]     |
[INFO] [stdout] 580 |                 unsafe { std::mem::MaybeUninit::zeroed().assume_init() };
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          this code causes undefined behavior when executed
[INFO] [stdout]     |                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: references must be non-null
[INFO] [stdout]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/louvain/messagemanager.rs:504:28
[INFO] [stdout]     |
[INFO] [stdout] 504 |         fn process_at_rank(&self, _rank: Rank) -> Process {
[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] 504 |         fn process_at_rank(&self, _rank: Rank) -> Process<'_> {
[INFO] [stdout]     |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/louvain/messagemanager.rs:508:25
[INFO] [stdout]     |
[INFO] [stdout] 508 |         fn this_process(&self) -> Process {
[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] 508 |         fn this_process(&self) -> Process<'_> {
[INFO] [stdout]     |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/louvain/traits.rs:13:24
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn process_at_rank(&self, rank: Rank) -> Process;
[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] 13 |     fn process_at_rank(&self, rank: Rank) -> Process<'_>;
[INFO] [stdout]    |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/louvain/traits.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn this_process(&self) -> Process;
[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] 14 |     fn this_process(&self) -> Process<'_>;
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `Command { std: "docker" "inspect" "ae37d50ace6efc17104e320893a0f85625fc65891fb514f5684c5ce876628f97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae37d50ace6efc17104e320893a0f85625fc65891fb514f5684c5ce876628f97", kill_on_drop: false }`
[INFO] [stdout] ae37d50ace6efc17104e320893a0f85625fc65891fb514f5684c5ce876628f97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d84fed31f8e9635494bc052ede73364fa61ae7e1e296551388011eefe3f710ed
[INFO] running `Command { std: "docker" "start" "-a" "d84fed31f8e9635494bc052ede73364fa61ae7e1e296551388011eefe3f710ed", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `mpi::traits::Equivalence`
[INFO] [stderr]  --> src/louvain/communities.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use mpi::traits::Equivalence;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Directed`, `EdgeRef`, `IntoEdgeReferences`, `IntoEdges`, `IntoNeighbors`, and `IntoNodeReferences`
[INFO] [stderr]  --> src/louvain/traits.rs:3:13
[INFO] [stderr]   |
[INFO] [stderr] 3 |     visit::{EdgeRef, IntoEdgeReferences, IntoEdges, IntoNeighbors, IntoNodeReferences},
[INFO] [stderr]   |             ^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 4 |     Directed,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vtx`
[INFO] [stderr]   --> src/louvain/communities.rs:71:40
[INFO] [stderr]    |
[INFO] [stderr] 71 |                 IterationStep::Process(vtx) => {
[INFO] [stderr]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_vtx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/louvain/communities.rs:81:13
[INFO] [stderr]    |
[INFO] [stderr] 81 |             self.syncrhonize(processed_vertex);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 81 |             let _ = self.syncrhonize(processed_vertex);
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/louvain/graph.rs:473:24
[INFO] [stderr]     |
[INFO] [stderr] 473 |     fn process_at_rank(&self, rank: Rank) -> Process {
[INFO] [stderr]     |                        ^^^^^                 ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                        |
[INFO] [stderr]     |                        the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 473 |     fn process_at_rank(&self, rank: Rank) -> Process<'_> {
[INFO] [stderr]     |                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/louvain/graph.rs:483:21
[INFO] [stderr]     |
[INFO] [stderr] 483 |     fn this_process(&self) -> Process {
[INFO] [stderr]     |                     ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 483 |     fn this_process(&self) -> Process<'_> {
[INFO] [stderr]     |                                      ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/louvain/traits.rs:13:24
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn process_at_rank(&self, rank: Rank) -> Process;
[INFO] [stderr]    |                        ^^^^^                 ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                        |
[INFO] [stderr]    |                        the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn process_at_rank(&self, rank: Rank) -> Process<'_>;
[INFO] [stderr]    |                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/louvain/traits.rs:14:21
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn this_process(&self) -> Process;
[INFO] [stderr]    |                     ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn this_process(&self) -> Process<'_>;
[INFO] [stderr]    |                                      ++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::logger`
[INFO] [stderr]    --> src/louvain/communitystate.rs:615:9
[INFO] [stderr]     |
[INFO] [stderr] 615 |     use crate::logger;
[INFO] [stderr]     |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `IntoEdgeReferences` and `IntoNeighbors`
[INFO] [stderr]  --> src/louvain/traits.rs:3:22
[INFO] [stderr]   |
[INFO] [stderr] 3 |     visit::{EdgeRef, IntoEdgeReferences, IntoEdges, IntoNeighbors, IntoNodeReferences},
[INFO] [stderr]   |                      ^^^^^^^^^^^^^^^^^^             ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/louvain/messagemanager.rs:434:13
[INFO] [stderr]     |
[INFO] [stderr] 433 |             unimplemented!("Not needed for these tests");
[INFO] [stderr]     |             -------------------------------------------- any code following this expression is unreachable
[INFO] [stderr] 434 |             std::iter::once((CommunityID(0), 0.0))
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/louvain/messagemanager.rs:447:13
[INFO] [stderr]     |
[INFO] [stderr] 446 |             unimplemented!("Not needed for these tests");
[INFO] [stderr]     |             -------------------------------------------- any code following this expression is unreachable
[INFO] [stderr] 447 |             std::iter::once(&CommunityID(0))
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/louvain/messagemanager.rs:456:13
[INFO] [stderr]     |
[INFO] [stderr] 455 |             unimplemented!("Not needed for these tests");
[INFO] [stderr]     |             -------------------------------------------- any code following this expression is unreachable
[INFO] [stderr] 456 |             std::iter::once(&CommunityID(0))
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `IntoEdges`
[INFO] [stderr]  --> src/louvain/traits.rs:3:42
[INFO] [stderr]   |
[INFO] [stderr] 3 |     visit::{EdgeRef, IntoEdgeReferences, IntoEdges, IntoNeighbors, IntoNodeReferences},
[INFO] [stderr]   |                                          ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `rank`, `owned_rows`, `row_ownership`, and `global_ecount` are never used
[INFO] [stderr]    --> src/louvain/graph.rs:533:12
[INFO] [stderr]     |
[INFO] [stderr] 528 |     impl MockInfoBuilder {
[INFO] [stderr]     |     -------------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 533 |         fn rank(mut self, rank: usize) -> Self {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 543 |         fn owned_rows(mut self, owned_rows: (usize, usize)) -> Self {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 548 |         fn row_ownership(mut self, row_ownership: Vec<(usize, usize)>) -> Self {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 558 |         fn global_ecount(mut self, global_ecount: usize) -> Self {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused implementer of `Iterator` that must be used
[INFO] [stderr]    --> src/louvain/communitystate.rs:688:13
[INFO] [stderr]     |
[INFO] [stderr] 688 |             state_manager.get_community_members(&CommunityID(10));
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: iterators are lazy and do nothing unless consumed
[INFO] [stderr] 
[INFO] [stderr] warning: the type `&mpi::topology::SimpleCommunicator` does not permit zero-initialization
[INFO] [stderr]    --> src/louvain/graph.rs:580:26
[INFO] [stderr]     |
[INFO] [stderr] 580 |                 unsafe { std::mem::MaybeUninit::zeroed().assume_init() };
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          this code causes undefined behavior when executed
[INFO] [stderr]     |                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr]     |
[INFO] [stderr]     = note: references must be non-null
[INFO] [stderr]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/louvain/messagemanager.rs:504:28
[INFO] [stderr]     |
[INFO] [stderr] 504 |         fn process_at_rank(&self, _rank: Rank) -> Process {
[INFO] [stderr]     |                            ^^^^^                  ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                            |
[INFO] [stderr]     |                            the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 504 |         fn process_at_rank(&self, _rank: Rank) -> Process<'_> {
[INFO] [stderr]     |                                                          ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/louvain/messagemanager.rs:508:25
[INFO] [stderr]     |
[INFO] [stderr] 508 |         fn this_process(&self) -> Process {
[INFO] [stderr]     |                         ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 508 |         fn this_process(&self) -> Process<'_> {
[INFO] [stderr]     |                                          ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `louvain` (lib) generated 8 warnings (run `cargo fix --lib -p louvain` to apply 7 suggestions)
[INFO] [stderr] warning: `louvain` (lib test) generated 18 warnings (7 duplicates) (run `cargo fix --lib -p louvain --tests` to apply 4 suggestions)
[INFO] [stderr] warning: unused imports: `DistributedGraph` and `Edge`
[INFO] [stderr]  --> src/main.rs:1:27
[INFO] [stderr]   |
[INFO] [stderr] 1 | use distributed_louvain::{DistributedGraph, Edge};
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `mpi::traits::Communicator`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use mpi::traits::Communicator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `louvain` (bin "louvain" test) generated 2 warnings (run `cargo fix --bin "louvain" -p louvain --tests` to apply 2 suggestions)
[INFO] [stderr] warning: `louvain` (bin "louvain") generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/distributed_louvain-a0c8f57a8ae3889e)
[INFO] [stdout] 
[INFO] [stdout] running 32 tests
[INFO] [stdout] test louvain::communitystate::tests::test_batch_process_vertex_movements ... ok
[INFO] [stdout] test louvain::communitystate::tests::test_batch_process_neighbor_info ... ok
[INFO] [stdout] test louvain::communitystate::tests::test_batch_process_community_update ... ok
[INFO] [stdout] test louvain::communitystate::tests::test_get_updated_communities ... ok
[INFO] [stdout] test louvain::communitystate::tests::test_local_communities ... ok
[INFO] [stdout] test louvain::communitystate::tests::test_move_vertex ... ok
[INFO] [stdout] test louvain::communitystate::tests::test_state_manager_initialization ... ok
[INFO] [stdout] test louvain::communitystate::tests::test_neighboring_communities ... ok
[INFO] [stdout] test louvain::communitystate::tests::test_update_community ... ok
[INFO] [stdout] test louvain::graph::tests::test_even_distribution ... ok
[INFO] [stdout] test louvain::graph::tests::test_partition_edges_different_ranks ... ok
[INFO] [stdout] test louvain::graph::tests::test_partition_edges_sorted_output ... ok
[INFO] [stdout] test louvain::graph::tests::test_partition_edges_empty_input ... ok
[INFO] [stdout] test louvain::graph::tests::test_partition_multiple_edges_same_rank ... ok
[INFO] [stdout] test louvain::graph::tests::test_rank_ownership ... ok
[INFO] [stdout] test louvain::graph::tests::test_partition_edges_with_self_loops ... ok
[INFO] [stdout] test louvain::graph::tests::test_partition_single_edge ... ok
[INFO] [stdout] test louvain::messagemanager::tests::test_get_send_and_recv_counts ... ok
[INFO] [stdout] test louvain::messagemanager::tests::test_get_received_messages ... ok
[INFO] [stdout] test louvain::messagemanager::tests::test_allocate_recv_buf ... ok
[INFO] [stdout] test louvain::messagemanager::tests::test_global_modularity ... ok
[INFO] [stdout] test louvain::messagemanager::tests::test_queue_neighbor_info ... ok
[INFO] [stdout] test louvain::messagemanager::tests::test_queue_community_update ... ok
[INFO] [stdout] test louvain::messagemanager::tests::test_queue_vertex_movement ... ok
[INFO] [stdout] test louvain::graph::tests::test_uneven_distribution ... ok
[INFO] [stdout] test louvain::graph::tests::test_zero_vertices ... ok
[INFO] [stdout] test louvain::messagemanager::tests::test_clear ... ok
[INFO] [stdout] test louvain::communitystate::tests::test_large_graph ... ok
[INFO] [stdout] test louvain::communitystate::tests::test_community_of ... ok
[INFO] [stdout] test louvain::communitystate::tests::test_get_community_members ... ok
[INFO] [stdout] test louvain::communitystate::tests::test_get_local_community ... ok
[INFO] [stdout] test louvain::graph::tests::test_zero_size ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- louvain::graph::tests::test_zero_size stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'louvain::graph::tests::test_zero_size' (48) panicked at src/louvain/graph.rs:80:33:
[INFO] [stdout] attempt to divide by zero
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5e319fb50cd2 - std[3b51380354919863]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5e319fb50cd2 - std[3b51380354919863]::backtrace_rs::backtrace::trace_unsynchronized::<std[3b51380354919863]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5e319fb50cd2 - std[3b51380354919863]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5e319fb50cd2 - <<std[3b51380354919863]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[27de1724e4349be2]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5e319fb663ea - <core[27de1724e4349be2]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5e319fb663ea - core[27de1724e4349be2]::fmt::write
[INFO] [stdout]    6:     0x5e319fb56006 - std[3b51380354919863]::io::default_write_fmt::<alloc[a57f19327c0ad893]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5e319fb56006 - <alloc[a57f19327c0ad893]::vec::Vec<u8> as std[3b51380354919863]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5e319fb2ef7f - <std[3b51380354919863]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5e319fb2ef7f - std[3b51380354919863]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5e319fb48f99 - std[3b51380354919863]::panicking::default_hook
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5e319fad2b4e - <alloc[a57f19327c0ad893]::boxed::Box<dyn for<'a, 'b> core[27de1724e4349be2]::ops::function::Fn<(&'a std[3b51380354919863]::panic::PanicHookInfo<'b>,), Output = ()> + core[27de1724e4349be2]::marker::Sync + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::Fn<(&std[3b51380354919863]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x5e319fad2b4e - test[182b2e79ecd7bbd9]::test_main_with_exit_callback::<test[182b2e79ecd7bbd9]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5e319fb49152 - <alloc[a57f19327c0ad893]::boxed::Box<dyn for<'a, 'b> core[27de1724e4349be2]::ops::function::Fn<(&'a std[3b51380354919863]::panic::PanicHookInfo<'b>,), Output = ()> + core[27de1724e4349be2]::marker::Sync + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::Fn<(&std[3b51380354919863]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x5e319fb49152 - std[3b51380354919863]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5e319fb2f06a - std[3b51380354919863]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:691:13
[INFO] [stdout]   16:     0x5e319fb23d59 - std[3b51380354919863]::sys::backtrace::__rust_end_short_backtrace::<std[3b51380354919863]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5e319fb2ff7d - __rustc[d79c0ace40940972]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5e319fb66aec - core[27de1724e4349be2]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5e319fb67aa9 - core[27de1724e4349be2]::panicking::panic_const::panic_const_div_by_zero
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panicking.rs:175:17
[INFO] [stdout]   20:     0x5e319faa6703 - <distributed_louvain[e9d63454b3d1ccd0]::louvain::graph::DistributedInfo>::compute_vertex_distribution
[INFO] [stdout]                                at /opt/rustwide/workdir/src/louvain/graph.rs:80:33
[INFO] [stdout]   21:     0x5e319fa95949 - distributed_louvain[e9d63454b3d1ccd0]::louvain::graph::tests::test_zero_size
[INFO] [stdout]                                at /opt/rustwide/workdir/src/louvain/graph.rs:623:28
[INFO] [stdout]   22:     0x5e319fa95147 - distributed_louvain[e9d63454b3d1ccd0]::louvain::graph::tests::test_zero_size::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/louvain/graph.rs:620:24
[INFO] [stdout]   23:     0x5e319fac67a6 - <distributed_louvain[e9d63454b3d1ccd0]::louvain::graph::tests::test_zero_size::{closure#0} as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5e319fac6efb - <fn() -> core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5e319fac6efb - test[182b2e79ecd7bbd9]::__rust_begin_short_backtrace::<core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>, fn() -> core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x5e319fad375a - test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x5e319fad375a - <core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x5e319fad375a - std[3b51380354919863]::panicking::catch_unwind::do_call::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>, core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x5e319fad375a - std[3b51380354919863]::panicking::catch_unwind::<core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>, core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x5e319fad375a - std[3b51380354919863]::panic::catch_unwind::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>, core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5e319fad375a - test[182b2e79ecd7bbd9]::run_test_in_process
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x5e319fad375a - test[182b2e79ecd7bbd9]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x5e319faced04 - test[182b2e79ecd7bbd9]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x5e319faced04 - std[3b51380354919863]::sys::backtrace::__rust_begin_short_backtrace::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x5e319fad6252 - std[3b51380354919863]::thread::lifecycle::spawn_unchecked::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   36:     0x5e319fad6252 - <core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x5e319fad6252 - std[3b51380354919863]::panicking::catch_unwind::do_call::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x5e319fad6252 - std[3b51380354919863]::panicking::catch_unwind::<(), core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x5e319fad6252 - std[3b51380354919863]::panic::catch_unwind::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5e319fad6252 - std[3b51380354919863]::thread::lifecycle::spawn_unchecked::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   41:     0x5e319fad6252 - <std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1} as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5e319fb5057f - <alloc[a57f19327c0ad893]::boxed::Box<dyn core[27de1724e4349be2]::ops::function::FnOnce<(), Output = ()> + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   43:     0x5e319fb5057f - <std[3b51380354919863]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   44:     0x753983d66aa4 - <unknown>
[INFO] [stdout]   45:     0x753983df3a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     louvain::graph::tests::test_zero_size
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 31 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "d84fed31f8e9635494bc052ede73364fa61ae7e1e296551388011eefe3f710ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d84fed31f8e9635494bc052ede73364fa61ae7e1e296551388011eefe3f710ed", kill_on_drop: false }`
[INFO] [stdout] d84fed31f8e9635494bc052ede73364fa61ae7e1e296551388011eefe3f710ed
