[INFO] cloning repository https://github.com/CalirDeminar/city_generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CalirDeminar/city_generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCalirDeminar%2Fcity_generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCalirDeminar%2Fcity_generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4b42dbe0512241dfea576b60cb47b5ce954ffc37
[INFO] checking CalirDeminar/city_generator against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCalirDeminar%2Fcity_generator" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/CalirDeminar/city_generator
[INFO] finished tweaking git repo https://github.com/CalirDeminar/city_generator
[INFO] tweaked toml for git repo https://github.com/CalirDeminar/city_generator written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/CalirDeminar/city_generator on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/CalirDeminar/city_generator 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded html-builder v0.5.1
[INFO] [stderr]   Downloaded uuid-macro-internal v1.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 279b7cb22afef0e72f9093f04b81f6191a0d4325fb29e3e97e7540914488c51e
[INFO] running `Command { std: "docker" "start" "-a" "279b7cb22afef0e72f9093f04b81f6191a0d4325fb29e3e97e7540914488c51e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "279b7cb22afef0e72f9093f04b81f6191a0d4325fb29e3e97e7540914488c51e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "279b7cb22afef0e72f9093f04b81f6191a0d4325fb29e3e97e7540914488c51e", kill_on_drop: false }`
[INFO] [stdout] 279b7cb22afef0e72f9093f04b81f6191a0d4325fb29e3e97e7540914488c51e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f37ea647a90daf0ce565dc687776b19f23c280145aaba02563f1635f5a28c70
[INFO] running `Command { std: "docker" "start" "-a" "2f37ea647a90daf0ce565dc687776b19f23c280145aaba02563f1635f5a28c70", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling proc-macro2 v1.0.58
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]     Checking utf8-width v0.1.6
[INFO] [stderr]     Checking regex-syntax v0.7.1
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking aho-corasick v1.0.1
[INFO] [stderr]     Checking html-escape v0.2.13
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking html-builder v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling syn v2.0.16
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex v1.8.1
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking csv v1.2.1
[INFO] [stderr]    Compiling uuid-macro-internal v1.3.3
[INFO] [stderr]     Checking uuid v1.3.3
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]     Checking city_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]    --> src/language2.rs:338:13
[INFO] [stdout]     |
[INFO] [stdout] 338 |         use std::collections::HashMap;
[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: `LogicalOperator`
[INFO] [stdout]    --> src/language2.rs:340:61
[INFO] [stdout]     |
[INFO] [stdout] 340 |         use crate::language2::language2::{build_dictionary, LogicalOperator};
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::Dictionary`
[INFO] [stdout]    --> src/language2.rs:342:13
[INFO] [stdout]     |
[INFO] [stdout] 342 |         use super::Dictionary;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `strum::IntoEnumIterator`
[INFO] [stdout]   --> src/language2.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     use strum::IntoEnumIterator;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `strum::IntoEnumIterator`
[INFO] [stdout]   --> src/language2.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     use strum::IntoEnumIterator;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/city/population.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let mut city = c;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/city.rs:165:17
[INFO] [stdout]     |
[INFO] [stdout] 165 |             let mut worker = city.citizens.values_mut().find(|m| m.id.eq(&w.id)).unwrap();
[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/city/population.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let mut city = c;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/city.rs:165:17
[INFO] [stdout]     |
[INFO] [stdout] 165 |             let mut worker = city.citizens.values_mut().find(|m| m.id.eq(&w.id)).unwrap();
[INFO] [stdout]     |                 ----^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hash_population_by_inst_visits` is never used
[INFO] [stdout]    --> src/city/population/mind/relations/friends.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn hash_population_by_inst_visits(population: &Population) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/institutions/visits.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 |             drop(inst);
[INFO] [stdout]     |             ^^^^^----^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&mut city::institutions::institutions::Institution`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 114 -             drop(inst);
[INFO] [stdout] 114 +             let _ = inst;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/institutions/visits.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |         drop(mind);
[INFO] [stdout]     |         ^^^^^----^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 116 -         drop(mind);
[INFO] [stdout] 116 +         let _ = mind;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/institutions.rs:448:17
[INFO] [stdout]     |
[INFO] [stdout] 448 |                 drop(mind_mut);
[INFO] [stdout]     |                 ^^^^^--------^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 448 -                 drop(mind_mut);
[INFO] [stdout] 448 +                 let _ = mind_mut;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/institutions.rs:472:17
[INFO] [stdout]     |
[INFO] [stdout] 472 |                 drop(mind);
[INFO] [stdout]     |                 ^^^^^----^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 472 -                 drop(mind);
[INFO] [stdout] 472 +                 let _ = mind;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&city::population::mind::mind::Mind` instead of cloning the inner type
[INFO] [stdout]   --> src/city/population/mind/relations/friends.rs:52:40
[INFO] [stdout]    |
[INFO] [stdout] 52 |                         to_add_0.push(m.clone());
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&city::population::mind::mind::Mind` instead of cloning the inner type
[INFO] [stdout]   --> src/city/population/mind/relations/friends.rs:54:40
[INFO] [stdout]    |
[INFO] [stdout] 54 |                         to_add_1.push(m.clone());
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/friends.rs:180:21
[INFO] [stdout]     |
[INFO] [stdout] 180 |                     drop(current);
[INFO] [stdout]     |                     ^^^^^-------^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          argument has type `&mut Vec<Uuid>`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 180 -                     drop(current);
[INFO] [stdout] 180 +                     let _ = current;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/friends.rs:196:25
[INFO] [stdout]     |
[INFO] [stdout] 196 |                         drop(mind);
[INFO] [stdout]     |                         ^^^^^----^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 196 -                         drop(mind);
[INFO] [stdout] 196 +                         let _ = mind;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/friends.rs:205:25
[INFO] [stdout]     |
[INFO] [stdout] 205 |                         drop(mind);
[INFO] [stdout]     |                         ^^^^^----^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 205 -                         drop(mind);
[INFO] [stdout] 205 +                         let _ = mind;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/friends.rs:220:25
[INFO] [stdout]     |
[INFO] [stdout] 220 |                         drop(mind);
[INFO] [stdout]     |                         ^^^^^----^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 220 -                         drop(mind);
[INFO] [stdout] 220 +                         let _ = mind;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/friends.rs:232:25
[INFO] [stdout]     |
[INFO] [stdout] 232 |                         drop(mind);
[INFO] [stdout]     |                         ^^^^^----^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 232 -                         drop(mind);
[INFO] [stdout] 232 +                         let _ = mind;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/friends.rs:246:25
[INFO] [stdout]     |
[INFO] [stdout] 246 |                         drop(mind);
[INFO] [stdout]     |                         ^^^^^----^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 246 -                         drop(mind);
[INFO] [stdout] 246 +                         let _ = mind;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/friends.rs:315:21
[INFO] [stdout]     |
[INFO] [stdout] 315 |                     drop(friend_m);
[INFO] [stdout]     |                     ^^^^^--------^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 315 -                     drop(friend_m);
[INFO] [stdout] 315 +                     let _ = friend_m;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/friends.rs:321:21
[INFO] [stdout]     |
[INFO] [stdout] 321 |                     drop(mind_m);
[INFO] [stdout]     |                     ^^^^^------^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 321 -                     drop(mind_m);
[INFO] [stdout] 321 +                     let _ = mind_m;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/city/population/mind/relations/parental_naming_formats.rs:62:35
[INFO] [stdout]    |
[INFO] [stdout] 62 |             output.push_str(prefix.clone());
[INFO] [stdout]    |                                   ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/parents.rs:218:21
[INFO] [stdout]     |
[INFO] [stdout] 218 |                     drop(mind_1);
[INFO] [stdout]     |                     ^^^^^------^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 218 -                     drop(mind_1);
[INFO] [stdout] 218 +                     let _ = mind_1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/parents.rs:225:21
[INFO] [stdout]     |
[INFO] [stdout] 225 |                     drop(mind_2);
[INFO] [stdout]     |                     ^^^^^------^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 225 -                     drop(mind_2);
[INFO] [stdout] 225 +                     let _ = mind_2;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/partners.rs:274:13
[INFO] [stdout]     |
[INFO] [stdout] 274 |             drop(mind_1);
[INFO] [stdout]     |             ^^^^^------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 274 -             drop(mind_1);
[INFO] [stdout] 274 +             let _ = mind_1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/partners.rs:278:13
[INFO] [stdout]     |
[INFO] [stdout] 278 |             drop(mind_2);
[INFO] [stdout]     |             ^^^^^------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 278 -             drop(mind_2);
[INFO] [stdout] 278 +             let _ = mind_2;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/city/population/mind/relations/residences.rs:38:21
[INFO] [stdout]    |
[INFO] [stdout] 38 |                     drop(m_mut);
[INFO] [stdout]    |                     ^^^^^-----^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 38 -                     drop(m_mut);
[INFO] [stdout] 38 +                     let _ = m_mut;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/city/population/mind/relations/residences.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 drop(mind);
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 46 -                 drop(mind);
[INFO] [stdout] 46 +                 let _ = mind;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/residences.rs:128:17
[INFO] [stdout]     |
[INFO] [stdout] 128 |                 drop(mind);
[INFO] [stdout]     |                 ^^^^^----^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 128 -                 drop(mind);
[INFO] [stdout] 128 +                 let _ = mind;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations.rs:156:17
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 drop(m);
[INFO] [stdout]     |                 ^^^^^-^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 156 -                 drop(m);
[INFO] [stdout] 156 +                 let _ = m;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations.rs:245:29
[INFO] [stdout]     |
[INFO] [stdout] 245 | ...                   drop(sibling);
[INFO] [stdout]     |                       ^^^^^-------^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 245 -                             drop(sibling);
[INFO] [stdout] 245 +                             let _ = sibling;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations.rs:269:29
[INFO] [stdout]     |
[INFO] [stdout] 269 | ...                   drop(pibling);
[INFO] [stdout]     |                       ^^^^^-------^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 269 -                             drop(pibling);
[INFO] [stdout] 269 +                             let _ = pibling;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations.rs:339:25
[INFO] [stdout]     |
[INFO] [stdout] 339 |                         drop(cousin);
[INFO] [stdout]     |                         ^^^^^------^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 339 -                         drop(cousin);
[INFO] [stdout] 339 +                         let _ = cousin;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&language::language::Word` instead of cloning the inner type
[INFO] [stdout]    --> src/language/nouns/food.rs:137:44
[INFO] [stdout]     |
[INFO] [stdout] 137 |         return ingredients.first().unwrap().clone();
[INFO] [stdout]     |                                            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/language2.rs:251:29
[INFO] [stdout]     |
[INFO] [stdout] 251 | ...                   drop(noun);
[INFO] [stdout]     |                       ^^^^^----^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            argument has type `&mut Noun`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 251 -                             drop(noun);
[INFO] [stdout] 251 +                             let _ = noun;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/language2.rs:266:29
[INFO] [stdout]     |
[INFO] [stdout] 266 | ...                   drop(adjective);
[INFO] [stdout]     |                       ^^^^^---------^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            argument has type `&mut Noun`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 266 -                             drop(adjective);
[INFO] [stdout] 266 +                             let _ = adjective;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]   --> src/templater.rs:75:35
[INFO] [stdout]    |
[INFO] [stdout] 75 |             output.push_str(prefix.clone());
[INFO] [stdout]    |                                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hash_population_by_inst_visits` is never used
[INFO] [stdout]    --> src/city/population/mind/relations/friends.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn hash_population_by_inst_visits(population: &Population) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `DataFileGroup` is never used
[INFO] [stdout]   --> src/parser.rs:39:10
[INFO] [stdout]    |
[INFO] [stdout] 39 |     type DataFileGroup = (String, Vec<String>);
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `format_file` is never used
[INFO] [stdout]   --> src/parser.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn format_file(filename: String) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `format_folder` is never used
[INFO] [stdout]   --> src/parser.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn format_folder(path: String) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/institutions/visits.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 |             drop(inst);
[INFO] [stdout]     |             ^^^^^----^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&mut city::institutions::institutions::Institution`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 114 -             drop(inst);
[INFO] [stdout] 114 +             let _ = inst;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/institutions/visits.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |         drop(mind);
[INFO] [stdout]     |         ^^^^^----^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 116 -         drop(mind);
[INFO] [stdout] 116 +         let _ = mind;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/institutions.rs:448:17
[INFO] [stdout]     |
[INFO] [stdout] 448 |                 drop(mind_mut);
[INFO] [stdout]     |                 ^^^^^--------^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 448 -                 drop(mind_mut);
[INFO] [stdout] 448 +                 let _ = mind_mut;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/institutions.rs:472:17
[INFO] [stdout]     |
[INFO] [stdout] 472 |                 drop(mind);
[INFO] [stdout]     |                 ^^^^^----^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 472 -                 drop(mind);
[INFO] [stdout] 472 +                 let _ = mind;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&city::population::mind::mind::Mind` instead of cloning the inner type
[INFO] [stdout]   --> src/city/population/mind/relations/friends.rs:52:40
[INFO] [stdout]    |
[INFO] [stdout] 52 |                         to_add_0.push(m.clone());
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&city::population::mind::mind::Mind` instead of cloning the inner type
[INFO] [stdout]   --> src/city/population/mind/relations/friends.rs:54:40
[INFO] [stdout]    |
[INFO] [stdout] 54 |                         to_add_1.push(m.clone());
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/friends.rs:180:21
[INFO] [stdout]     |
[INFO] [stdout] 180 |                     drop(current);
[INFO] [stdout]     |                     ^^^^^-------^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          argument has type `&mut Vec<Uuid>`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 180 -                     drop(current);
[INFO] [stdout] 180 +                     let _ = current;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/friends.rs:196:25
[INFO] [stdout]     |
[INFO] [stdout] 196 |                         drop(mind);
[INFO] [stdout]     |                         ^^^^^----^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 196 -                         drop(mind);
[INFO] [stdout] 196 +                         let _ = mind;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/friends.rs:205:25
[INFO] [stdout]     |
[INFO] [stdout] 205 |                         drop(mind);
[INFO] [stdout]     |                         ^^^^^----^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 205 -                         drop(mind);
[INFO] [stdout] 205 +                         let _ = mind;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/friends.rs:220:25
[INFO] [stdout]     |
[INFO] [stdout] 220 |                         drop(mind);
[INFO] [stdout]     |                         ^^^^^----^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 220 -                         drop(mind);
[INFO] [stdout] 220 +                         let _ = mind;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/friends.rs:232:25
[INFO] [stdout]     |
[INFO] [stdout] 232 |                         drop(mind);
[INFO] [stdout]     |                         ^^^^^----^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 232 -                         drop(mind);
[INFO] [stdout] 232 +                         let _ = mind;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/friends.rs:246:25
[INFO] [stdout]     |
[INFO] [stdout] 246 |                         drop(mind);
[INFO] [stdout]     |                         ^^^^^----^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 246 -                         drop(mind);
[INFO] [stdout] 246 +                         let _ = mind;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/friends.rs:315:21
[INFO] [stdout]     |
[INFO] [stdout] 315 |                     drop(friend_m);
[INFO] [stdout]     |                     ^^^^^--------^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 315 -                     drop(friend_m);
[INFO] [stdout] 315 +                     let _ = friend_m;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/friends.rs:321:21
[INFO] [stdout]     |
[INFO] [stdout] 321 |                     drop(mind_m);
[INFO] [stdout]     |                     ^^^^^------^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 321 -                     drop(mind_m);
[INFO] [stdout] 321 +                     let _ = mind_m;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/city/population/mind/relations/parental_naming_formats.rs:62:35
[INFO] [stdout]    |
[INFO] [stdout] 62 |             output.push_str(prefix.clone());
[INFO] [stdout]    |                                   ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/parents.rs:218:21
[INFO] [stdout]     |
[INFO] [stdout] 218 |                     drop(mind_1);
[INFO] [stdout]     |                     ^^^^^------^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 218 -                     drop(mind_1);
[INFO] [stdout] 218 +                     let _ = mind_1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/parents.rs:225:21
[INFO] [stdout]     |
[INFO] [stdout] 225 |                     drop(mind_2);
[INFO] [stdout]     |                     ^^^^^------^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 225 -                     drop(mind_2);
[INFO] [stdout] 225 +                     let _ = mind_2;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/partners.rs:274:13
[INFO] [stdout]     |
[INFO] [stdout] 274 |             drop(mind_1);
[INFO] [stdout]     |             ^^^^^------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 274 -             drop(mind_1);
[INFO] [stdout] 274 +             let _ = mind_1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/partners.rs:278:13
[INFO] [stdout]     |
[INFO] [stdout] 278 |             drop(mind_2);
[INFO] [stdout]     |             ^^^^^------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 278 -             drop(mind_2);
[INFO] [stdout] 278 +             let _ = mind_2;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/city/population/mind/relations/residences.rs:38:21
[INFO] [stdout]    |
[INFO] [stdout] 38 |                     drop(m_mut);
[INFO] [stdout]    |                     ^^^^^-----^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 38 -                     drop(m_mut);
[INFO] [stdout] 38 +                     let _ = m_mut;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/city/population/mind/relations/residences.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 drop(mind);
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 46 -                 drop(mind);
[INFO] [stdout] 46 +                 let _ = mind;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations/residences.rs:128:17
[INFO] [stdout]     |
[INFO] [stdout] 128 |                 drop(mind);
[INFO] [stdout]     |                 ^^^^^----^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 128 -                 drop(mind);
[INFO] [stdout] 128 +                 let _ = mind;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations.rs:156:17
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 drop(m);
[INFO] [stdout]     |                 ^^^^^-^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 156 -                 drop(m);
[INFO] [stdout] 156 +                 let _ = m;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations.rs:245:29
[INFO] [stdout]     |
[INFO] [stdout] 245 | ...                   drop(sibling);
[INFO] [stdout]     |                       ^^^^^-------^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 245 -                             drop(sibling);
[INFO] [stdout] 245 +                             let _ = sibling;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations.rs:269:29
[INFO] [stdout]     |
[INFO] [stdout] 269 | ...                   drop(pibling);
[INFO] [stdout]     |                       ^^^^^-------^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 269 -                             drop(pibling);
[INFO] [stdout] 269 +                             let _ = pibling;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/city/population/mind/relations.rs:339:25
[INFO] [stdout]     |
[INFO] [stdout] 339 |                         drop(cousin);
[INFO] [stdout]     |                         ^^^^^------^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 339 -                         drop(cousin);
[INFO] [stdout] 339 +                         let _ = cousin;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&language::language::Word` instead of cloning the inner type
[INFO] [stdout]    --> src/language/nouns/food.rs:137:44
[INFO] [stdout]     |
[INFO] [stdout] 137 |         return ingredients.first().unwrap().clone();
[INFO] [stdout]     |                                            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/language2.rs:251:29
[INFO] [stdout]     |
[INFO] [stdout] 251 | ...                   drop(noun);
[INFO] [stdout]     |                       ^^^^^----^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            argument has type `&mut Noun`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 251 -                             drop(noun);
[INFO] [stdout] 251 +                             let _ = noun;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/language2.rs:266:29
[INFO] [stdout]     |
[INFO] [stdout] 266 | ...                   drop(adjective);
[INFO] [stdout]     |                       ^^^^^---------^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            argument has type `&mut Noun`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 266 -                             drop(adjective);
[INFO] [stdout] 266 +                             let _ = adjective;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]   --> src/templater.rs:75:35
[INFO] [stdout]    |
[INFO] [stdout] 75 |             output.push_str(prefix.clone());
[INFO] [stdout]    |                                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.23s
[INFO] running `Command { std: "docker" "inspect" "2f37ea647a90daf0ce565dc687776b19f23c280145aaba02563f1635f5a28c70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f37ea647a90daf0ce565dc687776b19f23c280145aaba02563f1635f5a28c70", kill_on_drop: false }`
[INFO] [stdout] 2f37ea647a90daf0ce565dc687776b19f23c280145aaba02563f1635f5a28c70
