[INFO] cloning repository https://github.com/Christian-Rades/rorqual
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Christian-Rades/rorqual" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChristian-Rades%2Frorqual", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChristian-Rades%2Frorqual'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 11aca468666a11d4821c8a93178a8173c88e2e52
[INFO] checking Christian-Rades/rorqual against try#f77b5bc6c7c84df104f86b0dd01d9490e3923fa8 for pr-147834
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChristian-Rades%2Frorqual" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Christian-Rades/rorqual
[INFO] finished tweaking git repo https://github.com/Christian-Rades/rorqual
[INFO] tweaked toml for git repo https://github.com/Christian-Rades/rorqual written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Christian-Rades/rorqual on toolchain f77b5bc6c7c84df104f86b0dd01d9490e3923fa8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Christian-Rades/rorqual already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63d70ee5ac586d3e11a71fc8a1060b27cdc5ac203ce7d4c0003e09b45678b1c8
[INFO] running `Command { std: "docker" "start" "-a" "63d70ee5ac586d3e11a71fc8a1060b27cdc5ac203ce7d4c0003e09b45678b1c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63d70ee5ac586d3e11a71fc8a1060b27cdc5ac203ce7d4c0003e09b45678b1c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63d70ee5ac586d3e11a71fc8a1060b27cdc5ac203ce7d4c0003e09b45678b1c8", kill_on_drop: false }`
[INFO] [stdout] 63d70ee5ac586d3e11a71fc8a1060b27cdc5ac203ce7d4c0003e09b45678b1c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1af240b2c7355986d88622b8567e87457ae9b99698c30be45ba14c3e5148170f
[INFO] running `Command { std: "docker" "start" "-a" "1af240b2c7355986d88622b8567e87457ae9b99698c30be45ba14c3e5148170f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
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[INFO] [stderr]    Compiling libssh2-sys v0.2.23
[INFO] [stderr]    Compiling libgit2-sys v0.12.24+1.3.0
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[INFO] [stdout] warning: unused imports: `Parsed`, `self`, and `strftime::StrftimeItems`
[INFO] [stdout]  --> src/git2graph.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use chrono::format::{self, strftime::StrftimeItems, Parsed};
[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: `Tree`
[INFO] [stdout]  --> src/git2graph.rs:3:61
[INFO] [stdout]   |
[INFO] [stdout] 3 | use git2::{Delta, DiffDelta, DiffOptions, Repository, Sort, Tree};
[INFO] [stdout]   |                                                             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `graph::NodeIndex`
[INFO] [stdout]  --> src/git2graph.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use petgraph::{graph::NodeIndex, Graph, Undirected};
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IntoParallelIterator`
[INFO] [stdout]  --> src/git2graph.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rayon::iter::{IntoParallelIterator, ParallelIterator};
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/git2graph.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/git2graph.rs:9:33
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono_tz::UTC`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use chrono_tz::UTC;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `VecDeque` and `fs::File`
[INFO] [stdout]   --> src/main.rs:16:28
[INFO] [stdout]    |
[INFO] [stdout] 16 |     collections::{HashSet, VecDeque},
[INFO] [stdout]    |                            ^^^^^^^^
[INFO] [stdout] 17 |     env,
[INFO] [stdout] 18 |     fs::File,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Parsed`, `self`, and `strftime::StrftimeItems`
[INFO] [stdout]  --> src/git2graph.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use chrono::format::{self, strftime::StrftimeItems, Parsed};
[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: `Tree`
[INFO] [stdout]  --> src/git2graph.rs:3:61
[INFO] [stdout]   |
[INFO] [stdout] 3 | use git2::{Delta, DiffDelta, DiffOptions, Repository, Sort, Tree};
[INFO] [stdout]   |                                                             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `graph::NodeIndex`
[INFO] [stdout]  --> src/git2graph.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use petgraph::{graph::NodeIndex, Graph, Undirected};
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IntoParallelIterator`
[INFO] [stdout]  --> src/git2graph.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rayon::iter::{IntoParallelIterator, ParallelIterator};
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/git2graph.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/git2graph.rs:9:33
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono_tz::UTC`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use chrono_tz::UTC;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `VecDeque` and `fs::File`
[INFO] [stdout]   --> src/main.rs:16:28
[INFO] [stdout]    |
[INFO] [stdout] 16 |     collections::{HashSet, VecDeque},
[INFO] [stdout]    |                            ^^^^^^^^
[INFO] [stdout] 17 |     env,
[INFO] [stdout] 18 |     fs::File,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ParallelIterator`
[INFO] [stdout]  --> src/git2graph.rs:5:41
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rayon::iter::{IntoParallelIterator, ParallelIterator};
[INFO] [stdout]   |                                         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `data::Build`
[INFO] [stdout]  --> src/git_graph.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     data::Build,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IntoEdgeReferences`
[INFO] [stdout]  --> src/git_graph.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 |     visit::{EdgeRef, IntoEdgeReferences},
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `visit::IntoNeighbors`
[INFO] [stdout]   --> src/main.rs:13:34
[INFO] [stdout]    |
[INFO] [stdout] 13 | use petgraph::{graph::NodeIndex, visit::IntoNeighbors};
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 2 arguments but 1 argument was supplied
[INFO] [stdout]    --> src/git2graph.rs:147:17
[INFO] [stdout]     |
[INFO] [stdout] 147 |     let trees = search_repo(&repo).unwrap();
[INFO] [stdout]     |                 ^^^^^^^^^^^------- argument #2 of type `&GitFilter` is missing
[INFO] [stdout]     |
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/git2graph.rs:74:4
[INFO] [stdout]     |
[INFO] [stdout]  74 | fn search_repo<'repo>(
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout]  75 |     repo: &'repo Repository,
[INFO] [stdout]  76 |     filter: &GitFilter,
[INFO] [stdout]     |     ------------------
[INFO] [stdout] help: provide the argument
[INFO] [stdout]     |
[INFO] [stdout] 147 |     let trees = search_repo(&repo, /* &GitFilter */).unwrap();
[INFO] [stdout]     |                                  ++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/git2graph.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut graph = Graph::<HashMap<String, String>, i64, Undirected>::new_undirected();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `graph`
[INFO] [stdout]   --> src/git2graph.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut graph = Graph::<HashMap<String, String>, i64, Undirected>::new_undirected();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_graph`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ParallelIterator`
[INFO] [stdout]  --> src/git2graph.rs:5:41
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rayon::iter::{IntoParallelIterator, ParallelIterator};
[INFO] [stdout]   |                                         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `data::Build`
[INFO] [stdout]  --> src/git_graph.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     data::Build,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IntoEdgeReferences`
[INFO] [stdout]  --> src/git_graph.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 |     visit::{EdgeRef, IntoEdgeReferences},
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `visit::IntoNeighbors`
[INFO] [stdout]   --> src/main.rs:13:34
[INFO] [stdout]    |
[INFO] [stdout] 13 | use petgraph::{graph::NodeIndex, visit::IntoNeighbors};
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 |     let mut bc = analyser::centrality::betweenness_centrality(&graph.graph);
[INFO] [stdout]     |         ----^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `recurse_neighbors` is never used
[INFO] [stdout]    --> src/main.rs:137:4
[INFO] [stdout]     |
[INFO] [stdout] 137 | fn recurse_neighbors(idx: NodeIndex, graph: &GitGraph, depth: u64) -> HashSet<NodeIndex> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `accumulate_basic` is never used
[INFO] [stdout]   --> src/analyser/centrality.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl CB {
[INFO] [stdout]    | ------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 66 |     fn accumulate_basic(&mut self, bn: BrandesNet) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `max_commits` is never read
[INFO] [stdout]   --> src/git2graph.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct GitFilter {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 12 |     pub start_date: Option<DateTime<Utc>>,
[INFO] [stdout] 13 |     pub max_commits: Option<u32>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InternedPath` is never constructed
[INFO] [stdout]   --> src/git2graph.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct InternedPath<'a> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `FIXTURES_PATH` is never used
[INFO] [stdout]    --> src/git2graph.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 | static FIXTURES_PATH: &str = "./tests/fixtures";
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_fixture_repo` is never used
[INFO] [stdout]    --> src/git2graph.rs:102:4
[INFO] [stdout]     |
[INFO] [stdout] 102 | fn load_fixture_repo(name: &str) -> Result<(TempDir, Repository), Box<dyn std::error::Error>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `copy_recursively` is never used
[INFO] [stdout]    --> src/git2graph.rs:125:4
[INFO] [stdout]     |
[INFO] [stdout] 125 | fn copy_recursively(source: &Path, target: &Path) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 130 | /     writeln!(
[INFO] [stdout] 131 | |         writer,
[INFO] [stdout] 132 | |         "\"{:?}\" -- \"{:?}\" [weight={}]",
[INFO] [stdout] 133 | |         from, to, graph.graph[edge_idx]
[INFO] [stdout] 134 | |     );
[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] 130 |     let _ = writeln!(
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/git2graph.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     rev_walk.set_sorting(Sort::NONE);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 79 |     let _ = rev_walk.set_sorting(Sort::NONE);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/git2graph.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut graph = Graph::<HashMap<String, String>, i64, Undirected>::new_undirected();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `graph`
[INFO] [stdout]   --> src/git2graph.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut graph = Graph::<HashMap<String, String>, i64, Undirected>::new_undirected();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_graph`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 |     let mut bc = analyser::centrality::betweenness_centrality(&graph.graph);
[INFO] [stdout]     |         ----^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rorqual` (bin "rorqual" test) due to 1 previous error; 15 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "1af240b2c7355986d88622b8567e87457ae9b99698c30be45ba14c3e5148170f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1af240b2c7355986d88622b8567e87457ae9b99698c30be45ba14c3e5148170f", kill_on_drop: false }`
[INFO] [stdout] 1af240b2c7355986d88622b8567e87457ae9b99698c30be45ba14c3e5148170f
