[INFO] cloning repository https://github.com/Logarithmus/min-spanning-tree-and-shortest-path
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Logarithmus/min-spanning-tree-and-shortest-path" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLogarithmus%2Fmin-spanning-tree-and-shortest-path", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLogarithmus%2Fmin-spanning-tree-and-shortest-path'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b900196767a24bf6e11c8d4783bd8ce7c3fedb94
[INFO] checking Logarithmus/min-spanning-tree-and-shortest-path against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLogarithmus%2Fmin-spanning-tree-and-shortest-path" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Logarithmus/min-spanning-tree-and-shortest-path on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Logarithmus/min-spanning-tree-and-shortest-path
[INFO] finished tweaking git repo https://github.com/Logarithmus/min-spanning-tree-and-shortest-path
[INFO] tweaked toml for git repo https://github.com/Logarithmus/min-spanning-tree-and-shortest-path written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Logarithmus/min-spanning-tree-and-shortest-path already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e9aeae3b32af8be9b15b807f09e257691dd50ea4d371f0549480c11e25ea646
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1e9aeae3b32af8be9b15b807f09e257691dd50ea4d371f0549480c11e25ea646", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e9aeae3b32af8be9b15b807f09e257691dd50ea4d371f0549480c11e25ea646", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e9aeae3b32af8be9b15b807f09e257691dd50ea4d371f0549480c11e25ea646", kill_on_drop: false }`
[INFO] [stdout] 1e9aeae3b32af8be9b15b807f09e257691dd50ea4d371f0549480c11e25ea646
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b118b458faa98c5440991deabedb696c96752f13ea50905723dd933235d71b1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9b118b458faa98c5440991deabedb696c96752f13ea50905723dd933235d71b1", kill_on_drop: false }`
[INFO] [stderr]     Checking spanning_tree_and_shortest_path v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]    --> src/graph.rs:147:28
[INFO] [stdout]     |
[INFO] [stdout] 147 |     pub fn dijkstra(&self, start: usize) -> Vec<Vec<HalfEdge>> {
[INFO] [stdout]     |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]    --> src/graph.rs:147:28
[INFO] [stdout]     |
[INFO] [stdout] 147 |     pub fn dijkstra(&self, start: usize) -> Vec<Vec<HalfEdge>> {
[INFO] [stdout]     |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `DisjointSubsets`
[INFO] [stdout]  --> src/disjoint_subsets.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct DisjointSubsets {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/disjoint_subsets.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(size: usize) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_set`
[INFO] [stdout]   --> src/disjoint_subsets.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn find_set(&mut self, elem: usize) -> usize {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `union_sets`
[INFO] [stdout]   --> src/disjoint_subsets.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn union_sets(&mut self, elem1: usize, elem2: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `total_weight`
[INFO] [stdout]   --> src/graph.rs:93:12
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn total_weight(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `min_span_tree_kruskal`
[INFO] [stdout]    --> src/graph.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn min_span_tree_kruskal(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dijkstra`
[INFO] [stdout]    --> src/graph.rs:147:12
[INFO] [stdout]     |
[INFO] [stdout] 147 |     pub fn dijkstra(&self, start: usize) -> Vec<Vec<HalfEdge>> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/heap.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(cmp: F) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_empty`
[INFO] [stdout]   --> src/heap.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `graph1`
[INFO] [stdout]  --> src/test.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn graph1() -> Graph {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `graph1_mst`
[INFO] [stdout]   --> src/test.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn graph1_mst() -> Graph {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `graph_a`
[INFO] [stdout]   --> src/test.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn graph_a() -> Graph {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `graph_b`
[INFO] [stdout]   --> src/test.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub fn graph_b() -> Graph {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `graph_c`
[INFO] [stdout]   --> src/test.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn graph_c() -> Graph {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `graph_d`
[INFO] [stdout]    --> src/test.rs:107:8
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub fn graph_d() -> Graph {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dijkstra`
[INFO] [stdout]    --> src/graph.rs:147:12
[INFO] [stdout]     |
[INFO] [stdout] 147 |     pub fn dijkstra(&self, start: usize) -> Vec<Vec<HalfEdge>> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/heap.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(cmp: F) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_empty`
[INFO] [stdout]   --> src/heap.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `graph1_mst`
[INFO] [stdout]   --> src/test.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn graph1_mst() -> Graph {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `graph_a`
[INFO] [stdout]   --> src/test.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn graph_a() -> Graph {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `graph_b`
[INFO] [stdout]   --> src/test.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub fn graph_b() -> Graph {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `graph_c`
[INFO] [stdout]   --> src/test.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn graph_c() -> Graph {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `graph_d`
[INFO] [stdout]    --> src/test.rs:107:8
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub fn graph_d() -> Graph {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "9b118b458faa98c5440991deabedb696c96752f13ea50905723dd933235d71b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b118b458faa98c5440991deabedb696c96752f13ea50905723dd933235d71b1", kill_on_drop: false }`
[INFO] [stdout] 9b118b458faa98c5440991deabedb696c96752f13ea50905723dd933235d71b1