[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] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5e6aea069250d4ff3399fdb62477df3b9db6134d
[INFO] testing nmandrus1/louvain-rs against master#1ef7943ee607160a564655b6596f83670ef95df5 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnmandrus1%2Flouvain-rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-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 1ef7943ee607160a564655b6596f83670ef95df5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nmandrus1/louvain-rs already has a lockfile, it will not be regenerated
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[INFO] [stdout] 8eec1f185e40e24f2f03446ec3b19d74fd123c23a16218b13c448504cec960c9
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[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 22.73s
[INFO] running `Command { std: "docker" "inspect" "8eec1f185e40e24f2f03446ec3b19d74fd123c23a16218b13c448504cec960c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8eec1f185e40e24f2f03446ec3b19d74fd123c23a16218b13c448504cec960c9", kill_on_drop: false }`
[INFO] [stdout] 8eec1f185e40e24f2f03446ec3b19d74fd123c23a16218b13c448504cec960c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbc530e70a1c6351be05e098088d7f187dbb41fa2202c33b6463d92a24b8172c
[INFO] running `Command { std: "docker" "start" "-a" "fbc530e70a1c6351be05e098088d7f187dbb41fa2202c33b6463d92a24b8172c", 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 0.93s
[INFO] running `Command { std: "docker" "inspect" "fbc530e70a1c6351be05e098088d7f187dbb41fa2202c33b6463d92a24b8172c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbc530e70a1c6351be05e098088d7f187dbb41fa2202c33b6463d92a24b8172c", kill_on_drop: false }`
[INFO] [stdout] fbc530e70a1c6351be05e098088d7f187dbb41fa2202c33b6463d92a24b8172c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b021d0e8a1f08e3c24e18f0d0882e8b39410bd54d363e5ae2b0e1b7f36e3e863
[INFO] running `Command { std: "docker" "start" "-a" "b021d0e8a1f08e3c24e18f0d0882e8b39410bd54d363e5ae2b0e1b7f36e3e863", 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 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/distributed_louvain-744922d7149f9897)
[INFO] [stdout] 
[INFO] [stdout] running 32 tests
[INFO] [stdout] test louvain::communitystate::tests::test_batch_process_community_update ... ok
[INFO] [stdout] test louvain::communitystate::tests::test_batch_process_neighbor_info ... ok
[INFO] [stdout] test louvain::communitystate::tests::test_batch_process_vertex_movements ... ok
[INFO] [stdout] test louvain::communitystate::tests::test_get_updated_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_local_communities ... ok
[INFO] [stdout] test louvain::communitystate::tests::test_neighboring_communities ... ok
[INFO] [stdout] test louvain::graph::tests::test_even_distribution ... ok
[INFO] [stdout] test louvain::communitystate::tests::test_update_community ... ok
[INFO] [stdout] test louvain::graph::tests::test_partition_edges_different_ranks ... ok
[INFO] [stdout] test louvain::graph::tests::test_partition_edges_empty_input ... ok
[INFO] [stdout] test louvain::graph::tests::test_partition_edges_with_self_loops ... ok
[INFO] [stdout] test louvain::graph::tests::test_partition_edges_sorted_output ... ok
[INFO] [stdout] test louvain::graph::tests::test_partition_multiple_edges_same_rank ... ok
[INFO] [stdout] test louvain::graph::tests::test_partition_single_edge ... ok
[INFO] [stdout] test louvain::graph::tests::test_rank_ownership ... 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_allocate_recv_buf ... ok
[INFO] [stdout] test louvain::messagemanager::tests::test_get_received_messages ... ok
[INFO] [stdout] test louvain::messagemanager::tests::test_clear ... ok
[INFO] [stdout] test louvain::messagemanager::tests::test_get_send_and_recv_counts ... ok
[INFO] [stdout] test louvain::messagemanager::tests::test_queue_community_update ... 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_vertex_movement ... 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' (47) panicked at src/louvain/graph.rs:80:33:
[INFO] [stdout] attempt to divide by zero
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x587117a11bc2 - std::backtrace_rs::backtrace::libunwind::trace::h786de35fecf3582f
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x587117a11bc2 - std::backtrace_rs::backtrace::trace_unsynchronized::h4a7da1a2a64387f1
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x587117a11bc2 - std::sys::backtrace::_print_fmt::h6bd7d500070c788c
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x587117a11bc2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h6d82c1afff976903
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x587117a220df - core::fmt::rt::Argument::fmt::hc4ce6d643d397690
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x587117a220df - core::fmt::write::hb1e7ca88b6a3936e
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x5871179de383 - std::io::default_write_fmt::haffd49d96f1984a8
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5871179de383 - std::io::Write::write_fmt::h027871c57cf57c01
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x5871179ea252 - std::sys::backtrace::BacktraceLock::print::ha2430613ee79d059
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x5871179ef6af - std::panicking::default_hook::{{closure}}::hdbd2db9e5c303cf6
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x5871179ef541 - std::panicking::default_hook::hed93c70cba5fdcf0
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x5871179a0f5e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd0ee8b569efc6a07
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   12:     0x5871179a0f5e - test::test_main_with_exit_callback::{{closure}}::hf10864b576ecd15d
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5871179efcbf - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h3a55ca34534c0d00
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   14:     0x5871179efcbf - std::panicking::panic_with_hook::h3862d766c2cec19b
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x5871179efae6 - std::panicking::panic_handler::{{closure}}::hb95eb402b5e28ee1
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:700:13
[INFO] [stdout]   16:     0x5871179ea389 - std::sys::backtrace::__rust_end_short_backtrace::hf73a26dc1835d85a
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x5871179d2c7d - __rustc[6ed5915ee467787]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x587117a2a060 - core::panicking::panic_fmt::h3454303eb8e6f7cd
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x587117a29a07 - core::panicking::panic_const::panic_const_div_by_zero::h3436186d9146d1e6
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panicking.rs:180:17
[INFO] [stdout]   20:     0x58711794ebe3 - distributed_louvain::louvain::graph::DistributedInfo::compute_vertex_distribution::hf0b4355ceef1802d
[INFO] [stdout]                                at /opt/rustwide/workdir/src/louvain/graph.rs:80:33
[INFO] [stdout]   21:     0x58711795837c - distributed_louvain::louvain::graph::tests::test_zero_size::hce77a83f8f5ca869
[INFO] [stdout]                                at /opt/rustwide/workdir/src/louvain/graph.rs:623:28
[INFO] [stdout]   22:     0x587117958487 - distributed_louvain::louvain::graph::tests::test_zero_size::{{closure}}::h7775c34ea3ddde65
[INFO] [stdout]                                at /opt/rustwide/workdir/src/louvain/graph.rs:620:24
[INFO] [stdout]   23:     0x5871179621d6 - core::ops::function::FnOnce::call_once::h2f0aa680b20d6953
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5871179a0d3b - core::ops::function::FnOnce::call_once::ha729ee35d2fab541
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5871179a0d3b - test::__rust_begin_short_backtrace::ha40f4db8207e1111
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x5871179b4dbd - test::run_test_in_process::{{closure}}::hc1b77cda5d44f0f3
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x5871179b4dbd - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h1dbea1de64785521
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x5871179b4dbd - std::panicking::catch_unwind::do_call::hd5febe9affd5a1b3
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x5871179b4dbd - std::panicking::catch_unwind::h51ea89627559b6f4
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x5871179b4dbd - std::panic::catch_unwind::hb8b8c2367cae3d66
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5871179b4dbd - test::run_test_in_process::ha5b55801407ea100
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x5871179b4dbd - test::run_test::{{closure}}::h0b9d4072b527abf5
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x58711798e2d4 - test::run_test::{{closure}}::hb1056b5731205822
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x58711798e2d4 - std::sys::backtrace::__rust_begin_short_backtrace::hb61ff5a34023c7ef
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x587117991c0a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hb0a83c0e8b353cff
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/thread/mod.rs:562:17
[INFO] [stdout]   36:     0x587117991c0a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb4f32cb008535298
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x587117991c0a - std::panicking::catch_unwind::do_call::h16d110e4fc35789a
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x587117991c0a - std::panicking::catch_unwind::hea9118f355699c4b
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x587117991c0a - std::panic::catch_unwind::hf4b3c2a06d3f42f5
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x587117991c0a - std::thread::Builder::spawn_unchecked_::{{closure}}::h3f4cb733a52d53d5
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/thread/mod.rs:560:30
[INFO] [stdout]   41:     0x587117991c0a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h4052f0967b37caeb
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5871179e578f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7ec433abd3f148b4
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/alloc/src/boxed.rs:2085:9
[INFO] [stdout]   43:     0x5871179e578f - std::sys::thread::unix::Thread::new::thread_start::he514622d3d7ba65c
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/thread/unix.rs:124:17
[INFO] [stdout]   44:     0x7cfb167eeaa4 - <unknown>
[INFO] [stdout]   45:     0x7cfb1687ba64 - 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 0.02s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "b021d0e8a1f08e3c24e18f0d0882e8b39410bd54d363e5ae2b0e1b7f36e3e863", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b021d0e8a1f08e3c24e18f0d0882e8b39410bd54d363e5ae2b0e1b7f36e3e863", kill_on_drop: false }`
[INFO] [stdout] b021d0e8a1f08e3c24e18f0d0882e8b39410bd54d363e5ae2b0e1b7f36e3e863
