[INFO] cloning repository https://github.com/duvholt/rust-metaheuristic-framework [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/duvholt/rust-metaheuristic-framework" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduvholt%2Frust-metaheuristic-framework", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduvholt%2Frust-metaheuristic-framework'... 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[INFO] [stderr] Downloaded serde_json v1.0.14 [INFO] [stderr] Downloaded serde_derive v1.0.38 [INFO] [stderr] Downloaded serde v1.0.38 [INFO] [stderr] Downloaded statistical v0.1.1 [INFO] [stderr] Downloaded assert_approx_eq v1.0.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 132a2952cb4c643dbf47d1aead1a3a0c4b21942948c2d8b539fcc28c0eeb068e [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" "132a2952cb4c643dbf47d1aead1a3a0c4b21942948c2d8b539fcc28c0eeb068e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "132a2952cb4c643dbf47d1aead1a3a0c4b21942948c2d8b539fcc28c0eeb068e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "132a2952cb4c643dbf47d1aead1a3a0c4b21942948c2d8b539fcc28c0eeb068e", kill_on_drop: false }` [INFO] [stdout] 132a2952cb4c643dbf47d1aead1a3a0c4b21942948c2d8b539fcc28c0eeb068e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 3e56b3340cd2620499a4a9be0327c9d2330aaecdc9b2d838d23b72e0bb0b368d [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" "3e56b3340cd2620499a4a9be0327c9d2330aaecdc9b2d838d23b72e0bb0b368d", kill_on_drop: false }` [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking unicode-width v0.1.4 [INFO] [stderr] Checking vec_map v0.8.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking serde v1.0.38 [INFO] [stderr] Checking dtoa v0.4.2 [INFO] [stderr] Checking itoa v0.4.1 [INFO] [stderr] Checking assert_approx_eq v1.0.0 [INFO] [stderr] Checking atty v0.2.8 [INFO] [stderr] Compiling proc-macro2 v0.3.6 [INFO] [stderr] Checking itertools v0.7.8 [INFO] [stderr] Checking num-bigint v0.1.43 [INFO] [stderr] Checking rand v0.3.22 [INFO] [stderr] Checking unreachable v0.1.1 [INFO] [stderr] Checking textwrap v0.9.0 [INFO] [stderr] Checking ordered-float v0.5.0 [INFO] [stderr] Checking clap v2.31.2 [INFO] [stderr] Compiling quote v0.5.1 [INFO] [stderr] Compiling syn v0.13.1 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking num v0.1.42 [INFO] [stderr] Checking statistical v0.1.1 [INFO] [stderr] Compiling serde_derive_internals v0.23.1 [INFO] [stderr] Checking serde_json v1.0.14 [INFO] [stderr] Compiling serde_derive v1.0.38 [INFO] [stderr] Checking rustoa v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/distribution.rs:32:5 [INFO] [stdout] | [INFO] [stdout] 32 | (u / v.abs().powf(1.0 / beta)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fitness_evaluation.rs:7:31 [INFO] [stdout] | [INFO] [stdout] 7 | pub type SingleTestFunction = Fn(&Vec) -> f64; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec) -> f64` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fitness_evaluation.rs:8:30 [INFO] [stdout] | [INFO] [stdout] 8 | pub type MultiTestFunction = Fn(&Vec) -> Vec; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec) -> Vec` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fitness_evaluation.rs:79:88 [INFO] [stdout] | [INFO] [stdout] 79 | pub fn read_shifted(&mut self, number: usize, dimensions: usize) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fitness_evaluation.rs:93:87 [INFO] [stdout] | [INFO] [stdout] 93 | pub fn read_rotate(&mut self, number: usize, dimensions: usize) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/multiobjective/rank.rs:10:24 [INFO] [stdout] | [INFO] [stdout] 10 | dominates: HashSet<(usize)>, [INFO] [stdout] | ^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/solution.rs:32:35 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn from_single(solution: &Solution) -> SolutionJSON { [INFO] [stdout] | ^^^^^^^^^^^^^ help: use `dyn`: `dyn Solution` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/solution.rs:39:34 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn from_multi(solution: &Solution>) -> SolutionJSON { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Solution>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/distribution.rs:32:5 [INFO] [stdout] | [INFO] [stdout] 32 | (u / v.abs().powf(1.0 / beta)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fitness_evaluation.rs:7:31 [INFO] [stdout] | [INFO] [stdout] 7 | pub type SingleTestFunction = Fn(&Vec) -> f64; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec) -> f64` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fitness_evaluation.rs:8:30 [INFO] [stdout] | [INFO] [stdout] 8 | pub type MultiTestFunction = Fn(&Vec) -> Vec; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec) -> Vec` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fitness_evaluation.rs:79:88 [INFO] [stdout] | [INFO] [stdout] 79 | pub fn read_shifted(&mut self, number: usize, dimensions: usize) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/fitness_evaluation.rs:93:87 [INFO] [stdout] | [INFO] [stdout] 93 | pub fn read_rotate(&mut self, number: usize, dimensions: usize) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/multiobjective/rank.rs:10:24 [INFO] [stdout] | [INFO] [stdout] 10 | dominates: HashSet<(usize)>, [INFO] [stdout] | ^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/problems/multi/dtlz.rs:188:28 [INFO] [stdout] | [INFO] [stdout] 188 | fn dtlz_optimum(dtlz: &Fn(&Vec) -> Vec, sum: &Fn(Vec) -> f64, x: f64, f: f64) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec) -> Vec` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/problems/multi/dtlz.rs:188:61 [INFO] [stdout] | [INFO] [stdout] 188 | fn dtlz_optimum(dtlz: &Fn(&Vec) -> Vec, sum: &Fn(Vec) -> f64, x: f64, f: f64) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Vec) -> f64` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/problems/multi/dtlz.rs:202:32 [INFO] [stdout] | [INFO] [stdout] 202 | fn dtlz_not_optimum(dtlz: &Fn(&Vec) -> Vec, sum: &Fn(Vec) -> f64, f: f64) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec) -> Vec` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/problems/multi/dtlz.rs:202:65 [INFO] [stdout] | [INFO] [stdout] 202 | fn dtlz_not_optimum(dtlz: &Fn(&Vec) -> Vec, sum: &Fn(Vec) -> f64, f: f64) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Vec) -> f64` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/solution.rs:32:35 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn from_single(solution: &Solution) -> SolutionJSON { [INFO] [stdout] | ^^^^^^^^^^^^^ help: use `dyn`: `dyn Solution` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/solution.rs:39:34 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn from_multi(solution: &Solution>) -> SolutionJSON { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Solution>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/testing/utils.rs:29:40 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn jmetal_compare(number: i8, uf: &Fn(&Vec) -> Vec, name: &str) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec) -> Vec` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `serde_json` is imported redundantly [INFO] [stdout] --> src/testing/utils.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | use serde_json; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:15:1 [INFO] [stdout] | [INFO] [stdout] 15 | extern crate serde_json; [INFO] [stdout] | ------------------------ the item `serde_json` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms/amo.rs:91:21 [INFO] [stdout] | [INFO] [stdout] 91 | let mut index_offset = [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms/archive_amo.rs:126:21 [INFO] [stdout] | [INFO] [stdout] 126 | let mut index_offset = [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms/ewa.rs:268:17 [INFO] [stdout] | [INFO] [stdout] 268 | let mut new_worm = worms.combine_worms(&offspring1, &offspring2, iteration); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms/loa.rs:297:23 [INFO] [stdout] | [INFO] [stdout] 297 | for (pride_index, mut lions) in pride_lions.chunks(pride_size).into_iter().enumerate() { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms/loa.rs:997:14 [INFO] [stdout] | [INFO] [stdout] 997 | let (mut males, mut females) = partition_on_sex(nomad.population.into_iter().collect()); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms/loa.rs:997:25 [INFO] [stdout] | [INFO] [stdout] 997 | let (mut males, mut females) = partition_on_sex(nomad.population.into_iter().collect()); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms/moamo.rs:125:21 [INFO] [stdout] | [INFO] [stdout] 125 | let mut index_offset = [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms/nsamo.rs:100:21 [INFO] [stdout] | [INFO] [stdout] 100 | let mut index_offset = [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/statistics/sampler.rs:109:21 [INFO] [stdout] | [INFO] [stdout] 109 | let mut solutions = samples [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 17 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms/amo.rs:91:21 [INFO] [stdout] | [INFO] [stdout] 91 | let mut index_offset = [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms/archive_amo.rs:126:21 [INFO] [stdout] | [INFO] [stdout] 126 | let mut index_offset = [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms/ewa.rs:268:17 [INFO] [stdout] | [INFO] [stdout] 268 | let mut new_worm = worms.combine_worms(&offspring1, &offspring2, iteration); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms/loa.rs:297:23 [INFO] [stdout] | [INFO] [stdout] 297 | for (pride_index, mut lions) in pride_lions.chunks(pride_size).into_iter().enumerate() { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms/loa.rs:997:14 [INFO] [stdout] | [INFO] [stdout] 997 | let (mut males, mut females) = partition_on_sex(nomad.population.into_iter().collect()); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms/loa.rs:997:25 [INFO] [stdout] | [INFO] [stdout] 997 | let (mut males, mut females) = partition_on_sex(nomad.population.into_iter().collect()); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms/moamo.rs:125:21 [INFO] [stdout] | [INFO] [stdout] 125 | let mut index_offset = [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms/nsamo.rs:100:21 [INFO] [stdout] | [INFO] [stdout] 100 | let mut index_offset = [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/statistics/sampler.rs:109:21 [INFO] [stdout] | [INFO] [stdout] 109 | let mut solutions = samples [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 23 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 33.29s [INFO] running `Command { std: "docker" "inspect" "3e56b3340cd2620499a4a9be0327c9d2330aaecdc9b2d838d23b72e0bb0b368d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3e56b3340cd2620499a4a9be0327c9d2330aaecdc9b2d838d23b72e0bb0b368d", kill_on_drop: false }` [INFO] [stdout] 3e56b3340cd2620499a4a9be0327c9d2330aaecdc9b2d838d23b72e0bb0b368d