[INFO] cloning repository https://github.com/purpleprotocol/graphlib
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/purpleprotocol/graphlib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpurpleprotocol%2Fgraphlib"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpurpleprotocol%2Fgraphlib'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d05d58c8dc3415b4caec6b99e3f6b1e87d4b54ef
[INFO] testing purpleprotocol/graphlib against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpurpleprotocol%2Fgraphlib" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/purpleprotocol/graphlib on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/purpleprotocol/graphlib
[INFO] finished tweaking git repo https://github.com/purpleprotocol/graphlib
[INFO] tweaked toml for git repo https://github.com/purpleprotocol/graphlib written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 693f83219faf1a21ca53daea02fe1f4ab9a64f0071da3c596cf3a2b56dc28782
[INFO] running `"docker" "start" "-a" "693f83219faf1a21ca53daea02fe1f4ab9a64f0071da3c596cf3a2b56dc28782"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling ahash v0.2.18
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]    Compiling rand_isaac v0.2.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling graphlib v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]   --> src/graph.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | use std::mem;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `next_ptr` is never read
[INFO] [stderr]   --> src/iterators/bfs.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |             let mut next_ptr = None;
[INFO] [stderr]    |                 ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `matches`
[INFO] [stderr]   --> src/edge.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub(crate) fn matches(&self, a: &VertexId, b: &VertexId) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `matches_any`
[INFO] [stderr]   --> src/edge.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub(crate) fn matches_any(&self, id: &VertexId) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.08s
[INFO] running `"docker" "inspect" "693f83219faf1a21ca53daea02fe1f4ab9a64f0071da3c596cf3a2b56dc28782"`
[INFO] running `"docker" "rm" "-f" "693f83219faf1a21ca53daea02fe1f4ab9a64f0071da3c596cf3a2b56dc28782"`
[INFO] [stdout] 693f83219faf1a21ca53daea02fe1f4ab9a64f0071da3c596cf3a2b56dc28782
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 372c02196eebe8a950c56d05fe424e473fd08aebba4c718446e8c503ae447ae1
[INFO] running `"docker" "start" "-a" "372c02196eebe8a950c56d05fe424e473fd08aebba4c718446e8c503ae447ae1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling oorandom v11.1.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stderr]    Compiling crossbeam-queue v0.2.2
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]   --> src/graph.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | use std::mem;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `next_ptr` is never read
[INFO] [stderr]   --> src/iterators/bfs.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |             let mut next_ptr = None;
[INFO] [stderr]    |                 ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `matches`
[INFO] [stderr]   --> src/edge.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub(crate) fn matches(&self, a: &VertexId, b: &VertexId) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `matches_any`
[INFO] [stderr]   --> src/edge.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub(crate) fn matches_any(&self, id: &VertexId) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling criterion-plot v0.4.2
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling tinytemplate v1.1.0
[INFO] [stderr]    Compiling criterion v0.3.2
[INFO] [stderr]    Compiling graphlib v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]  --> examples/dot.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut f = File::create("example1.dot").unwrap();
[INFO] [stderr]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> examples/dot.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut f = File::create("example1.dot").unwrap();
[INFO] [stderr]   |         ----^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]   --> src/graph.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | use std::mem;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]     --> src/graph.rs:1778:13
[INFO] [stderr]      |
[INFO] [stderr] 1778 |         let id = VertexId::random();
[INFO] [stderr]      |             ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `next_ptr` is never read
[INFO] [stderr]   --> src/iterators/bfs.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |             let mut next_ptr = None;
[INFO] [stderr]    |                 ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/iterators/dijkstra.rs:247:13
[INFO] [stderr]     |
[INFO] [stderr] 247 |         let mut iterator = Dijkstra::new(&graph, &v1).unwrap();
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `matches`
[INFO] [stderr]   --> src/edge.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub(crate) fn matches(&self, a: &VertexId, b: &VertexId) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `matches_any`
[INFO] [stderr]   --> src/edge.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub(crate) fn matches_any(&self, id: &VertexId) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/iterators/dfs.rs:197:9
[INFO] [stderr]     |
[INFO] [stderr] 197 |         graph.add_edge(&v1, &v2);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/iterators/dfs.rs:198:9
[INFO] [stderr]     |
[INFO] [stderr] 198 |         graph.add_edge(&v3, &v2);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/iterators/dijkstra.rs:202:9
[INFO] [stderr]     |
[INFO] [stderr] 202 |         graph.add_edge_with_weight(&v1, &v2, 0.0);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/iterators/dijkstra.rs:215:9
[INFO] [stderr]     |
[INFO] [stderr] 215 |         graph.add_edge_with_weight(&v1, &v2, -0.1);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/iterators/dijkstra.rs:216:9
[INFO] [stderr]     |
[INFO] [stderr] 216 |         graph.add_edge_with_weight(&v2, &v1, 0.1);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/iterators/dijkstra.rs:230:9
[INFO] [stderr]     |
[INFO] [stderr] 230 |         graph.add_edge_with_weight(&v1, &v2, 0.0);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/iterators/dijkstra.rs:245:9
[INFO] [stderr]     |
[INFO] [stderr] 245 |         graph.add_edge_with_weight(&v1, &v2, 0.0);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/iterators/dijkstra.rs:260:9
[INFO] [stderr]     |
[INFO] [stderr] 260 |         graph.add_edge_with_weight(&v1, &v2, 0.0);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/iterators/dijkstra.rs:315:9
[INFO] [stderr]     |
[INFO] [stderr] 315 |         iterator.set_source(&v_c);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1m 31s
[INFO] running `"docker" "inspect" "372c02196eebe8a950c56d05fe424e473fd08aebba4c718446e8c503ae447ae1"`
[INFO] running `"docker" "rm" "-f" "372c02196eebe8a950c56d05fe424e473fd08aebba4c718446e8c503ae447ae1"`
[INFO] [stdout] 372c02196eebe8a950c56d05fe424e473fd08aebba4c718446e8c503ae447ae1
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8a7acc3593b95429cc3da65f9485b6d70c003f0da0d55fadccf48405bd565dfc
[INFO] running `"docker" "start" "-a" "8a7acc3593b95429cc3da65f9485b6d70c003f0da0d55fadccf48405bd565dfc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]   --> src/graph.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | use std::mem;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `next_ptr` is never read
[INFO] [stderr]   --> src/iterators/bfs.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |             let mut next_ptr = None;
[INFO] [stderr]    |                 ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `matches`
[INFO] [stderr]   --> src/edge.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub(crate) fn matches(&self, a: &VertexId, b: &VertexId) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `matches_any`
[INFO] [stderr]   --> src/edge.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub(crate) fn matches_any(&self, id: &VertexId) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]   --> src/graph.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | use std::mem;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]     --> src/graph.rs:1778:13
[INFO] [stderr]      |
[INFO] [stderr] 1778 |         let id = VertexId::random();
[INFO] [stderr]      |             ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `next_ptr` is never read
[INFO] [stderr]   --> src/iterators/bfs.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |             let mut next_ptr = None;
[INFO] [stderr]    |                 ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/iterators/dijkstra.rs:247:13
[INFO] [stderr]     |
[INFO] [stderr] 247 |         let mut iterator = Dijkstra::new(&graph, &v1).unwrap();
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `matches`
[INFO] [stderr]   --> src/edge.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub(crate) fn matches(&self, a: &VertexId, b: &VertexId) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `matches_any`
[INFO] [stderr]   --> src/edge.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub(crate) fn matches_any(&self, id: &VertexId) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/iterators/dfs.rs:197:9
[INFO] [stderr]     |
[INFO] [stderr] 197 |         graph.add_edge(&v1, &v2);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/iterators/dfs.rs:198:9
[INFO] [stderr]     |
[INFO] [stderr] 198 |         graph.add_edge(&v3, &v2);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/iterators/dijkstra.rs:202:9
[INFO] [stderr]     |
[INFO] [stderr] 202 |         graph.add_edge_with_weight(&v1, &v2, 0.0);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/iterators/dijkstra.rs:215:9
[INFO] [stderr]     |
[INFO] [stderr] 215 |         graph.add_edge_with_weight(&v1, &v2, -0.1);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/iterators/dijkstra.rs:216:9
[INFO] [stderr]     |
[INFO] [stderr] 216 |         graph.add_edge_with_weight(&v2, &v1, 0.1);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/iterators/dijkstra.rs:230:9
[INFO] [stderr]     |
[INFO] [stderr] 230 |         graph.add_edge_with_weight(&v1, &v2, 0.0);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/iterators/dijkstra.rs:245:9
[INFO] [stderr]     |
[INFO] [stderr] 245 |         graph.add_edge_with_weight(&v1, &v2, 0.0);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/iterators/dijkstra.rs:260:9
[INFO] [stderr]     |
[INFO] [stderr] 260 |         graph.add_edge_with_weight(&v1, &v2, 0.0);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/iterators/dijkstra.rs:315:9
[INFO] [stderr]     |
[INFO] [stderr] 315 |         iterator.set_source(&v_c);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]  --> examples/dot.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut f = File::create("example1.dot").unwrap();
[INFO] [stderr]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> examples/dot.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut f = File::create("example1.dot").unwrap();
[INFO] [stderr]   |         ----^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/graphlib-ef603b654b299ebc
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test iterators::dfs::tests::not_cyclic ... ok
[INFO] [stdout] test iterators::dfs::tests::not_cyclic_edge_to_successor ... ok
[INFO] [stdout] test iterators::dijkstra::tests::test_get_distance_with_invalid_vertex ... ok
[INFO] [stdout] test graph::tests::test_add_edge_cycle_check ... ok
[INFO] [stdout] test iterators::dfs::tests::not_cyclic_edge_split_merge ... ok
[INFO] [stdout] test graph::tests::is_thread_safe ... ok
[INFO] [stdout] test iterators::dfs::tests::not_cyclic_split_merge_continue ... ok
[INFO] [stdout] test iterators::dijkstra::tests::test_new_with_invalid_source ... ok
[INFO] [stdout] test graph::tests::test_clonable ... ok
[INFO] [stdout] test iterators::dfs::tests::cycle_self_edge ... ok
[INFO] [stdout] test iterators::dijkstra::tests::test_new_with_negative_weight_edge ... ok
[INFO] [stdout] test graph::tests::test_remove_edge ... ok
[INFO] [stdout] test iterators::topo::tests::was_cyclic ... ok
[INFO] [stdout] test iterators::topo::tests::is_cyclic ... ok
[INFO] [stdout] test graph::tests::dfs_mul_roots ... ok
[INFO] [stdout] test iterators::dijkstra::tests::test_new_with_empty_graph ... ok
[INFO] [stdout] test graph::tests::dfs ... ok
[INFO] [stdout] test iterators::topo::tests::is_not_cyclic ... ok
[INFO] [stdout] test iterators::owning_iterator::tests::it_yields_correct_vertex_ids ... ok
[INFO] [stdout] test iterators::dijkstra::tests::test_set_source_with_invalid_vertex ... ok
[INFO] [stdout] test graph::tests::test_non_clonable_type ... ok
[INFO] [stdout] test iterators::dijkstra::tests::test_on_unweighted_graph ... ok
[INFO] [stdout] test iterators::dijkstra::tests::test_on_connected_graphs ... ok
[INFO] [stdout] test iterators::dijkstra::tests::test_get_path_to_with_invalid_vertex ... ok
[INFO] [stdout] test iterators::topo::tests::is_cyclic_and_panic ... ok
[INFO] [stdout] test iterators::dfs::tests::is_cyclic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests graphlib
[INFO] [stdout] 
[INFO] [stdout] running 39 tests
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::capacity (line 151) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::fetch_mut (line 551) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::add_vertex (line 253) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::fetch (line 530) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::fold (line 716) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::has_edge (line 462) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::edges (line 1020) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::add_edge_with_weight (line 339) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::add_edge (line 274) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::add_edge_check_cycle (line 308) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::bfs (line 1173) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::dijkstra (line 1255) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::edge_count (line 487) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::in_neighbors (line 924) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::dfs (line 1142) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::new (line 99) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::in_neighbors_count (line 866) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::remove (line 579) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::is_cyclic (line 789) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::retain (line 687) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::reserve (line 173) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::map (line 745) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::neighbors_count (line 842) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::neighbors (line 987) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::remove_edge (line 631) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::out_neighbors_count (line 893) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::shrink_to_fit (line 217) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::vertices (line 1115) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::with_capacity (line 124) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::vertex_count (line 511) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::out_neighbors (line 958) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::roots_count (line 818) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::values (line 1300) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::roots (line 1050) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::set_weight (line 412) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::topo (line 1224) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::tips (line 1082) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::weight (line 377) ... ok
[INFO] [stdout] test src/lib.rs -  (line 14) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 39 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "8a7acc3593b95429cc3da65f9485b6d70c003f0da0d55fadccf48405bd565dfc"`
[INFO] running `"docker" "rm" "-f" "8a7acc3593b95429cc3da65f9485b6d70c003f0da0d55fadccf48405bd565dfc"`
[INFO] [stdout] 8a7acc3593b95429cc3da65f9485b6d70c003f0da0d55fadccf48405bd565dfc