[INFO] cloning repository https://github.com/ChoateProgrammingUnion/housing-lottery-optimization [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ChoateProgrammingUnion/housing-lottery-optimization" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChoateProgrammingUnion%2Fhousing-lottery-optimization", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChoateProgrammingUnion%2Fhousing-lottery-optimization'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4e3b3713c4716b2f45729f4cea907a1a14ebfba8 [INFO] testing ChoateProgrammingUnion/housing-lottery-optimization against beta-2020-10-09 for beta-1.48-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChoateProgrammingUnion%2Fhousing-lottery-optimization" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ChoateProgrammingUnion/housing-lottery-optimization on toolchain beta-2020-10-09 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ChoateProgrammingUnion/housing-lottery-optimization [INFO] finished tweaking git repo https://github.com/ChoateProgrammingUnion/housing-lottery-optimization [INFO] tweaked toml for git repo https://github.com/ChoateProgrammingUnion/housing-lottery-optimization written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/ChoateProgrammingUnion/housing-lottery-optimization already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e4698fe63b102557d9349609c4052b69dd7aaecbf392124c18e64ebbe4d20279 [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" "e4698fe63b102557d9349609c4052b69dd7aaecbf392124c18e64ebbe4d20279", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e4698fe63b102557d9349609c4052b69dd7aaecbf392124c18e64ebbe4d20279", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e4698fe63b102557d9349609c4052b69dd7aaecbf392124c18e64ebbe4d20279", kill_on_drop: false }` [INFO] [stdout] e4698fe63b102557d9349609c4052b69dd7aaecbf392124c18e64ebbe4d20279 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 8ee5712c5bd8e0bee96e50ba911affffba83505656fb93d7509a9e2af23771f9 [INFO] running `Command { std: "docker" "start" "-a" "8ee5712c5bd8e0bee96e50ba911affffba83505656fb93d7509a9e2af23771f9", kill_on_drop: false }` [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Compiling chrono v0.4.19 [INFO] [stderr] Compiling env_logger v0.7.1 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling housing-optimization v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `optimizers::rand::SeedableRng` [INFO] [stdout] --> src/optimizers/deans_algorithm.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use optimizers::rand::SeedableRng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `optimizers::rand::seq::IteratorRandom` [INFO] [stdout] --> src/optimizers/deans_algorithm.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use optimizers::rand::seq::IteratorRandom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data_file` [INFO] [stdout] --> src/data_output.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut data_file = File::create("data_output.yaml").expect("file creation failed"); [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_file` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rounds` [INFO] [stdout] --> src/optimizers/identity.rs:20:28 [INFO] [stdout] | [INFO] [stdout] 20 | fn optimize(&mut self, rounds: usize) -> Vec> { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_rounds` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `student` [INFO] [stdout] --> src/optimizers/mcmc.rs:58:14 [INFO] [stdout] | [INFO] [stdout] 58 | fn normalize(student: Student) -> Student { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_student` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `student` [INFO] [stdout] --> src/optimizers/mcmc/mcmc_naive.rs:49:17 [INFO] [stdout] | [INFO] [stdout] 49 | for student in house { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_student` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `round` [INFO] [stdout] --> src/optimizers/mcmc/mcmc_naive.rs:76:13 [INFO] [stdout] | [INFO] [stdout] 76 | for round in 0..(rounds*1000){ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_round` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/optimizers/deans_algorithm.rs:53:13 [INFO] [stdout] | [INFO] [stdout] 53 | for i in 0..input.len() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rounds` [INFO] [stdout] --> src/optimizers/deans_algorithm.rs:46:28 [INFO] [stdout] | [INFO] [stdout] 46 | fn optimize(&mut self, rounds: usize) -> Vec> { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_rounds` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item` [INFO] [stdout] --> src/optimizers/multi_dist.rs:41:14 [INFO] [stdout] | [INFO] [stdout] 41 | |item, weight, index| { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_item` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> src/optimizers/multi_dist.rs:50:20 [INFO] [stdout] | [INFO] [stdout] 50 | |item, index| { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> src/optimizers/multi_dist.rs:53:28 [INFO] [stdout] | [INFO] [stdout] 53 | |item, weight, index| { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item` [INFO] [stdout] --> src/optimizers/multi_dist.rs:65:34 [INFO] [stdout] | [INFO] [stdout] 65 | let move_house_weight = |item: &Vec, index: usize| -> f64 { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_item` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item` [INFO] [stdout] --> src/optimizers/multi_dist.rs:72:14 [INFO] [stdout] | [INFO] [stdout] 72 | |item, weight, index| { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_item` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> src/optimizers/multi_dist.rs:78:52 [INFO] [stdout] | [INFO] [stdout] 78 | let move_student_weight = |item: &Student, index: usize| -> f64 { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> src/optimizers/multi_dist.rs:84:28 [INFO] [stdout] | [INFO] [stdout] 84 | |item, weight, index| { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:49:13 [INFO] [stdout] | [INFO] [stdout] 49 | let mut rounds: usize = 1*num.pow(x as u32); [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/data_output.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut data_file = File::create("data_output.yaml").expect("file creation failed"); [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/optimizers/mcmc.rs:50:17 [INFO] [stdout] | [INFO] [stdout] 50 | let mut student = schedule[proposed_change.student_location.0].remove(proposed_change.student_location.1); [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/optimizers/mcmc/mcmc_naive.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | let mut student_location = self.gen_range(0, size); [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/optimizers/multi_dist.rs:102:13 [INFO] [stdout] | [INFO] [stdout] 102 | let mut dist = WeightedIndex::new(&weights).unwrap(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `scale` [INFO] [stdout] --> src/ballot.rs:51:8 [INFO] [stdout] | [INFO] [stdout] 51 | pub fn scale(student: Student) -> Student { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `identity` [INFO] [stdout] --> src/ballot.rs:83:8 [INFO] [stdout] | [INFO] [stdout] 83 | pub fn identity(student: Student) -> Student { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/optimizers/identity.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 12 | pub fn new(ballots: &Ballot) -> Identity { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `size` [INFO] [stdout] --> src/optimizers/mcmc/mcmc_naive.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | fn size(&self , schedule: Vec>) -> (Vec>, usize) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/optimizers/mcmc.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | fn new(student_location: (usize, usize), proposed_house: usize) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `normalize` [INFO] [stdout] --> src/optimizers/mcmc.rs:58:4 [INFO] [stdout] | [INFO] [stdout] 58 | fn normalize(student: Student) -> Student { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/optimizers/deans_algorithm.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn new(ballots: Ballot) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/optimizers/multi_dist.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 15 | pub fn new(ballots: &Ballot, random_seed: u64, weight_power: f64) -> MultiDist { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `student_weight` [INFO] [stdout] --> src/optimizers/multi_dist.rs:111:8 [INFO] [stdout] | [INFO] [stdout] 111 | fn student_weight(student: &Student, house_id: usize) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Number` should have a snake case name [INFO] [stdout] --> src/data_output.rs:8:98 [INFO] [stdout] | [INFO] [stdout] 8 | pub fn write_output(allocations: &Vec>, ballot: &Ballot, optimized_time: &Duration, Number: &str) { [INFO] [stdout] | ^^^^^^ help: convert the identifier to snake case: `number` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 31 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 10.54s [INFO] running `Command { std: "docker" "inspect" "8ee5712c5bd8e0bee96e50ba911affffba83505656fb93d7509a9e2af23771f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8ee5712c5bd8e0bee96e50ba911affffba83505656fb93d7509a9e2af23771f9", kill_on_drop: false }` [INFO] [stdout] 8ee5712c5bd8e0bee96e50ba911affffba83505656fb93d7509a9e2af23771f9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7ce8a61b8cd335d713820758e7cc114336459acc64d395be34c678579488a9df [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" "7ce8a61b8cd335d713820758e7cc114336459acc64d395be34c678579488a9df", kill_on_drop: false }` [INFO] [stderr] Compiling housing-optimization v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `optimizers::rand::SeedableRng` [INFO] [stdout] --> src/optimizers/deans_algorithm.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use optimizers::rand::SeedableRng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `optimizers::rand::seq::IteratorRandom` [INFO] [stdout] --> src/optimizers/deans_algorithm.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use optimizers::rand::seq::IteratorRandom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data_file` [INFO] [stdout] --> src/data_output.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut data_file = File::create("data_output.yaml").expect("file creation failed"); [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_file` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rounds` [INFO] [stdout] --> src/optimizers/identity.rs:20:28 [INFO] [stdout] | [INFO] [stdout] 20 | fn optimize(&mut self, rounds: usize) -> Vec> { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_rounds` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `student` [INFO] [stdout] --> src/optimizers/mcmc.rs:58:14 [INFO] [stdout] | [INFO] [stdout] 58 | fn normalize(student: Student) -> Student { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_student` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `student` [INFO] [stdout] --> src/optimizers/mcmc/mcmc_naive.rs:49:17 [INFO] [stdout] | [INFO] [stdout] 49 | for student in house { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_student` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `round` [INFO] [stdout] --> src/optimizers/mcmc/mcmc_naive.rs:76:13 [INFO] [stdout] | [INFO] [stdout] 76 | for round in 0..(rounds*1000){ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_round` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/optimizers/deans_algorithm.rs:53:13 [INFO] [stdout] | [INFO] [stdout] 53 | for i in 0..input.len() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rounds` [INFO] [stdout] --> src/optimizers/deans_algorithm.rs:46:28 [INFO] [stdout] | [INFO] [stdout] 46 | fn optimize(&mut self, rounds: usize) -> Vec> { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_rounds` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item` [INFO] [stdout] --> src/optimizers/multi_dist.rs:41:14 [INFO] [stdout] | [INFO] [stdout] 41 | |item, weight, index| { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_item` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> src/optimizers/multi_dist.rs:50:20 [INFO] [stdout] | [INFO] [stdout] 50 | |item, index| { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> src/optimizers/multi_dist.rs:53:28 [INFO] [stdout] | [INFO] [stdout] 53 | |item, weight, index| { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item` [INFO] [stdout] --> src/optimizers/multi_dist.rs:65:34 [INFO] [stdout] | [INFO] [stdout] 65 | let move_house_weight = |item: &Vec, index: usize| -> f64 { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_item` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item` [INFO] [stdout] --> src/optimizers/multi_dist.rs:72:14 [INFO] [stdout] | [INFO] [stdout] 72 | |item, weight, index| { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_item` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> src/optimizers/multi_dist.rs:78:52 [INFO] [stdout] | [INFO] [stdout] 78 | let move_student_weight = |item: &Student, index: usize| -> f64 { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> src/optimizers/multi_dist.rs:84:28 [INFO] [stdout] | [INFO] [stdout] 84 | |item, weight, index| { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:49:13 [INFO] [stdout] | [INFO] [stdout] 49 | let mut rounds: usize = 1*num.pow(x as u32); [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/data_output.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut data_file = File::create("data_output.yaml").expect("file creation failed"); [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/optimizers/mcmc.rs:50:17 [INFO] [stdout] | [INFO] [stdout] 50 | let mut student = schedule[proposed_change.student_location.0].remove(proposed_change.student_location.1); [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/optimizers/mcmc/mcmc_naive.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | let mut student_location = self.gen_range(0, size); [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/optimizers/multi_dist.rs:102:13 [INFO] [stdout] | [INFO] [stdout] 102 | let mut dist = WeightedIndex::new(&weights).unwrap(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `scale` [INFO] [stdout] --> src/ballot.rs:51:8 [INFO] [stdout] | [INFO] [stdout] 51 | pub fn scale(student: Student) -> Student { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `identity` [INFO] [stdout] --> src/ballot.rs:83:8 [INFO] [stdout] | [INFO] [stdout] 83 | pub fn identity(student: Student) -> Student { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/optimizers/identity.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 12 | pub fn new(ballots: &Ballot) -> Identity { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `size` [INFO] [stdout] --> src/optimizers/mcmc/mcmc_naive.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | fn size(&self , schedule: Vec>) -> (Vec>, usize) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/optimizers/mcmc.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | fn new(student_location: (usize, usize), proposed_house: usize) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `normalize` [INFO] [stdout] --> src/optimizers/mcmc.rs:58:4 [INFO] [stdout] | [INFO] [stdout] 58 | fn normalize(student: Student) -> Student { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/optimizers/deans_algorithm.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn new(ballots: Ballot) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/optimizers/multi_dist.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 15 | pub fn new(ballots: &Ballot, random_seed: u64, weight_power: f64) -> MultiDist { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `student_weight` [INFO] [stdout] --> src/optimizers/multi_dist.rs:111:8 [INFO] [stdout] | [INFO] [stdout] 111 | fn student_weight(student: &Student, house_id: usize) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Number` should have a snake case name [INFO] [stdout] --> src/data_output.rs:8:98 [INFO] [stdout] | [INFO] [stdout] 8 | pub fn write_output(allocations: &Vec>, ballot: &Ballot, optimized_time: &Duration, Number: &str) { [INFO] [stdout] | ^^^^^^ help: convert the identifier to snake case: `number` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 31 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.06s [INFO] running `Command { std: "docker" "inspect" "7ce8a61b8cd335d713820758e7cc114336459acc64d395be34c678579488a9df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7ce8a61b8cd335d713820758e7cc114336459acc64d395be34c678579488a9df", kill_on_drop: false }` [INFO] [stdout] 7ce8a61b8cd335d713820758e7cc114336459acc64d395be34c678579488a9df [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 52ec09864c59654a9ff7245ef3926bf82cd55ef20cca529cacc60aa06fd588de [INFO] running `Command { std: "docker" "start" "-a" "52ec09864c59654a9ff7245ef3926bf82cd55ef20cca529cacc60aa06fd588de", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `optimizers::rand::SeedableRng` [INFO] [stderr] --> src/optimizers/deans_algorithm.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use optimizers::rand::SeedableRng; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `optimizers::rand::seq::IteratorRandom` [INFO] [stderr] --> src/optimizers/deans_algorithm.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use optimizers::rand::seq::IteratorRandom; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `data_file` [INFO] [stderr] --> src/data_output.rs:11:13 [INFO] [stderr] | [INFO] [stderr] 11 | let mut data_file = File::create("data_output.yaml").expect("file creation failed"); [INFO] [stderr] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_file` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `rounds` [INFO] [stderr] --> src/optimizers/identity.rs:20:28 [INFO] [stderr] | [INFO] [stderr] 20 | fn optimize(&mut self, rounds: usize) -> Vec> { [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_rounds` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `student` [INFO] [stderr] --> src/optimizers/mcmc.rs:58:14 [INFO] [stderr] | [INFO] [stderr] 58 | fn normalize(student: Student) -> Student { [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_student` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `student` [INFO] [stderr] --> src/optimizers/mcmc/mcmc_naive.rs:49:17 [INFO] [stderr] | [INFO] [stderr] 49 | for student in house { [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_student` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `round` [INFO] [stderr] --> src/optimizers/mcmc/mcmc_naive.rs:76:13 [INFO] [stderr] | [INFO] [stderr] 76 | for round in 0..(rounds*1000){ [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_round` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/optimizers/deans_algorithm.rs:53:13 [INFO] [stderr] | [INFO] [stderr] 53 | for i in 0..input.len() { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `rounds` [INFO] [stderr] --> src/optimizers/deans_algorithm.rs:46:28 [INFO] [stderr] | [INFO] [stderr] 46 | fn optimize(&mut self, rounds: usize) -> Vec> { [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_rounds` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `item` [INFO] [stderr] --> src/optimizers/multi_dist.rs:41:14 [INFO] [stderr] | [INFO] [stderr] 41 | |item, weight, index| { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_item` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `index` [INFO] [stderr] --> src/optimizers/multi_dist.rs:50:20 [INFO] [stderr] | [INFO] [stderr] 50 | |item, index| { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `index` [INFO] [stderr] --> src/optimizers/multi_dist.rs:53:28 [INFO] [stderr] | [INFO] [stderr] 53 | |item, weight, index| { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `item` [INFO] [stderr] --> src/optimizers/multi_dist.rs:65:34 [INFO] [stderr] | [INFO] [stderr] 65 | let move_house_weight = |item: &Vec, index: usize| -> f64 { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_item` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `item` [INFO] [stderr] --> src/optimizers/multi_dist.rs:72:14 [INFO] [stderr] | [INFO] [stderr] 72 | |item, weight, index| { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_item` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `index` [INFO] [stderr] --> src/optimizers/multi_dist.rs:78:52 [INFO] [stderr] | [INFO] [stderr] 78 | let move_student_weight = |item: &Student, index: usize| -> f64 { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `index` [INFO] [stderr] --> src/optimizers/multi_dist.rs:84:28 [INFO] [stderr] | [INFO] [stderr] 84 | |item, weight, index| { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:49:13 [INFO] [stderr] | [INFO] [stderr] 49 | let mut rounds: usize = 1*num.pow(x as u32); [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: variable does not need to be mutable [INFO] [stderr] --> src/data_output.rs:11:13 [INFO] [stderr] | [INFO] [stderr] 11 | let mut data_file = File::create("data_output.yaml").expect("file creation failed"); [INFO] [stderr] | ----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/optimizers/mcmc.rs:50:17 [INFO] [stderr] | [INFO] [stderr] 50 | let mut student = schedule[proposed_change.student_location.0].remove(proposed_change.student_location.1); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/optimizers/mcmc/mcmc_naive.rs:40:13 [INFO] [stderr] | [INFO] [stderr] 40 | let mut student_location = self.gen_range(0, size); [INFO] [stderr] | ----^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/optimizers/multi_dist.rs:102:13 [INFO] [stderr] | [INFO] [stderr] 102 | let mut dist = WeightedIndex::new(&weights).unwrap(); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `scale` [INFO] [stderr] --> src/ballot.rs:51:8 [INFO] [stderr] | [INFO] [stderr] 51 | pub fn scale(student: Student) -> Student { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `identity` [INFO] [stderr] --> src/ballot.rs:83:8 [INFO] [stderr] | [INFO] [stderr] 83 | pub fn identity(student: Student) -> Student { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/optimizers/identity.rs:12:12 [INFO] [stderr] | [INFO] [stderr] 12 | pub fn new(ballots: &Ballot) -> Identity { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `size` [INFO] [stderr] --> src/optimizers/mcmc/mcmc_naive.rs:15:8 [INFO] [stderr] | [INFO] [stderr] 15 | fn size(&self , schedule: Vec>) -> (Vec>, usize) { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/optimizers/mcmc.rs:15:8 [INFO] [stderr] | [INFO] [stderr] 15 | fn new(student_location: (usize, usize), proposed_house: usize) -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `normalize` [INFO] [stderr] --> src/optimizers/mcmc.rs:58:4 [INFO] [stderr] | [INFO] [stderr] 58 | fn normalize(student: Student) -> Student { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/optimizers/deans_algorithm.rs:16:12 [INFO] [stderr] | [INFO] [stderr] 16 | pub fn new(ballots: Ballot) -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/optimizers/multi_dist.rs:15:12 [INFO] [stderr] | [INFO] [stderr] 15 | pub fn new(ballots: &Ballot, random_seed: u64, weight_power: f64) -> MultiDist { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `student_weight` [INFO] [stderr] --> src/optimizers/multi_dist.rs:111:8 [INFO] [stderr] | [INFO] [stderr] 111 | fn student_weight(student: &Student, house_id: usize) -> f64 { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable `Number` should have a snake case name [INFO] [stderr] --> src/data_output.rs:8:98 [INFO] [stderr] | [INFO] [stderr] 8 | pub fn write_output(allocations: &Vec>, ballot: &Ballot, optimized_time: &Duration, Number: &str) { [INFO] [stderr] | ^^^^^^ help: convert the identifier to snake case: `number` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 31 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/housing_optimization-560b262c71138c02 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "52ec09864c59654a9ff7245ef3926bf82cd55ef20cca529cacc60aa06fd588de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "52ec09864c59654a9ff7245ef3926bf82cd55ef20cca529cacc60aa06fd588de", kill_on_drop: false }` [INFO] [stdout] 52ec09864c59654a9ff7245ef3926bf82cd55ef20cca529cacc60aa06fd588de