[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'... 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[INFO] [stderr] Downloaded array2d v0.2.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c75a8679586926f39b2b2b1aa70a5eba35aecd53e72b482fceefc8871496f4e4 [INFO] running `Command { std: "docker" "start" "-a" "c75a8679586926f39b2b2b1aa70a5eba35aecd53e72b482fceefc8871496f4e4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c75a8679586926f39b2b2b1aa70a5eba35aecd53e72b482fceefc8871496f4e4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c75a8679586926f39b2b2b1aa70a5eba35aecd53e72b482fceefc8871496f4e4", kill_on_drop: false }` [INFO] [stdout] c75a8679586926f39b2b2b1aa70a5eba35aecd53e72b482fceefc8871496f4e4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 42a29fab88ea43134c07ced862aa82117d261185f8ff21c72995e6a02e9a02f1 [INFO] running `Command { std: "docker" "start" "-a" "42a29fab88ea43134c07ced862aa82117d261185f8ff21c72995e6a02e9a02f1", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.77 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling indexmap v1.6.0 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Checking hashbrown v0.9.1 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking ppv-lite86 v0.2.9 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking linked-hash-map v0.5.3 [INFO] [stderr] Checking termcolor v1.1.0 [INFO] [stderr] Checking fixedbitset v0.2.0 [INFO] [stderr] Checking array2d v0.2.1 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking yaml-rust v0.4.4 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Checking petgraph v0.5.1 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking housing-optimization v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `std` is imported redundantly [INFO] [stdout] --> src/optimizers/network.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std; [INFO] [stdout] | ^^^ the item `std` is already imported by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Eq` is imported redundantly [INFO] [stdout] --> src/optimizers/network.rs:4:16 [INFO] [stdout] | [INFO] [stdout] 4 | use std::cmp::{Eq, Ordering}; [INFO] [stdout] | ^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:124:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Eq` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `ballot::Ballot` [INFO] [stdout] --> src/optimizers/mcmc.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | use ballot::Ballot; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `std` is imported redundantly [INFO] [stdout] --> src/optimizers/network.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std; [INFO] [stdout] | ^^^ the item `std` is already imported by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Eq` is imported redundantly [INFO] [stdout] --> src/optimizers/network.rs:4:16 [INFO] [stdout] | [INFO] [stdout] 4 | use std::cmp::{Eq, Ordering}; [INFO] [stdout] | ^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:124:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Eq` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `extra_room_float` [INFO] [stdout] --> src/optimizers/mcmc/minimax.rs:39:13 [INFO] [stdout] | [INFO] [stdout] 39 | let extra_room_float: f64 = 0.1; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extra_room_float` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `extra_room_constant` [INFO] [stdout] --> src/optimizers/mcmc/minimax.rs:40:17 [INFO] [stdout] | [INFO] [stdout] 40 | let mut extra_room_constant: usize = 0; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extra_room_constant` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `other_constant` [INFO] [stdout] --> src/optimizers/mcmc/minimax.rs:41:17 [INFO] [stdout] | [INFO] [stdout] 41 | let mut other_constant: f64 = 0.5; [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_other_constant` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/optimizers/mcmc/minimax.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | let mut extra_room_constant: usize = 0; [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/optimizers/mcmc/minimax.rs:41:13 [INFO] [stdout] | [INFO] [stdout] 41 | let mut other_constant: f64 = 0.5; [INFO] [stdout] | ----^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `extra_room_float` [INFO] [stdout] --> src/optimizers/mcmc/minimax.rs:39:13 [INFO] [stdout] | [INFO] [stdout] 39 | let extra_room_float: f64 = 0.1; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extra_room_float` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `extra_room_constant` [INFO] [stdout] --> src/optimizers/mcmc/minimax.rs:40:17 [INFO] [stdout] | [INFO] [stdout] 40 | let mut extra_room_constant: usize = 0; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extra_room_constant` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `other_constant` [INFO] [stdout] --> src/optimizers/mcmc/minimax.rs:41:17 [INFO] [stdout] | [INFO] [stdout] 41 | let mut other_constant: f64 = 0.5; [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_other_constant` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/optimizers/mcmc/minimax.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | let mut extra_room_constant: usize = 0; [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/optimizers/mcmc/minimax.rs:41:13 [INFO] [stdout] | [INFO] [stdout] 41 | let mut other_constant: f64 = 0.5; [INFO] [stdout] | ----^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `new_seed` [INFO] [stdout] --> src/optimizers/mcmcswap/mcmc_swap.rs:166:26 [INFO] [stdout] | [INFO] [stdout] 166 | fn reseed(&mut self, new_seed: u64) {} [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_seed` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `new_seed` [INFO] [stdout] --> src/optimizers/mcmcswap/mcmc_swap.rs:166:26 [INFO] [stdout] | [INFO] [stdout] 166 | fn reseed(&mut self, new_seed: u64) {} [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_seed` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `graph` [INFO] [stdout] --> src/optimizers/network.rs:253:13 [INFO] [stdout] | [INFO] [stdout] 253 | let graph = optimizers::network::NetworkOptimizer::new(&ballot, 10.0, 10.0); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_graph` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/optimizers/network.rs:260:13 [INFO] [stdout] | [INFO] [stdout] 260 | let mut graph = optimizers::network::NetworkOptimizer::new(&ballot, 10.0, 10.0); [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/network.rs:279:13 [INFO] [stdout] | [INFO] [stdout] 279 | let mut graph = optimizers::network::NetworkOptimizer::new(&ballot, 10.0, 10.0); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `exclude` [INFO] [stdout] --> src/optimizers/network.rs:297:17 [INFO] [stdout] | [INFO] [stdout] 297 | let mut exclude: HashMap = HashMap::new(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_exclude` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/optimizers/network.rs:297:13 [INFO] [stdout] | [INFO] [stdout] 297 | let mut exclude: HashMap = HashMap::new(); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `objective` is never used [INFO] [stdout] --> src/optimizers.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 18 | pub trait Optimizer { [INFO] [stdout] | --------- method in this trait [INFO] [stdout] ... [INFO] [stdout] 21 | fn objective(&self) -> f64; // the objective function to optimize [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `size` is never used [INFO] [stdout] --> src/optimizers/mcmc/minimax_swap.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 10 | impl MinimaxSwap { [INFO] [stdout] | ---------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 18 | fn size(&self, schedule: Vec>) -> (Vec>, usize) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `name` is never read [INFO] [stdout] --> src/optimizers/network.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct Node { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 11 | pub name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `objective` is never used [INFO] [stdout] --> src/optimizers.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 18 | pub trait Optimizer { [INFO] [stdout] | --------- method in this trait [INFO] [stdout] ... [INFO] [stdout] 21 | fn objective(&self) -> f64; // the objective function to optimize [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `size` is never used [INFO] [stdout] --> src/optimizers/mcmc/minimax_swap.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 10 | impl MinimaxSwap { [INFO] [stdout] | ---------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 18 | fn size(&self, schedule: Vec>) -> (Vec>, usize) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `name` is never read [INFO] [stdout] --> src/optimizers/network.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct Node { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 11 | pub name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 17 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.21s [INFO] running `Command { std: "docker" "inspect" "42a29fab88ea43134c07ced862aa82117d261185f8ff21c72995e6a02e9a02f1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "42a29fab88ea43134c07ced862aa82117d261185f8ff21c72995e6a02e9a02f1", kill_on_drop: false }` [INFO] [stdout] 42a29fab88ea43134c07ced862aa82117d261185f8ff21c72995e6a02e9a02f1