[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] b86e338b9f267f89b5f120c09850ca04ca637aa2
[INFO] testing CalirDeminar/city_generator against 1.76.0 for beta-1.77-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCalirDeminar%2Fcity_generator" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CalirDeminar/city_generator on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-5-tc1/source/Cargo.toml
[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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uuid-macro-internal v1.3.3
[INFO] [stderr]   Downloaded html-builder v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10cf74f55a355605b9bf732f4baac9a01c0ef3f672dfe8b92985cffef07205a5
[INFO] running `Command { std: "docker" "start" "-a" "10cf74f55a355605b9bf732f4baac9a01c0ef3f672dfe8b92985cffef07205a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10cf74f55a355605b9bf732f4baac9a01c0ef3f672dfe8b92985cffef07205a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10cf74f55a355605b9bf732f4baac9a01c0ef3f672dfe8b92985cffef07205a5", kill_on_drop: false }`
[INFO] [stdout] 10cf74f55a355605b9bf732f4baac9a01c0ef3f672dfe8b92985cffef07205a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81ea55aa27595b1265356c822308719327c72a19ffc52f4bcaab13a6119bb927
[INFO] running `Command { std: "docker" "start" "-a" "81ea55aa27595b1265356c822308719327c72a19ffc52f4bcaab13a6119bb927", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.58
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling utf8-width v0.1.6
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling regex-syntax v0.7.1
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling strum v0.24.1
[INFO] [stderr]    Compiling aho-corasick v1.0.1
[INFO] [stderr]    Compiling html-escape v0.2.13
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling html-builder v0.5.1
[INFO] [stderr]    Compiling getrandom v0.2.9
[INFO] [stderr]    Compiling syn v2.0.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rand_distr v0.4.3
[INFO] [stderr]    Compiling regex v1.8.1
[INFO] [stderr]    Compiling uuid-macro-internal v1.3.3
[INFO] [stderr]    Compiling csv v1.2.1
[INFO] [stderr]    Compiling uuid v1.3.3
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]    Compiling city_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `uuid::Uuid`
[INFO] [stdout]  --> src/language2/templater2.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use uuid::Uuid;
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Noun`
[INFO] [stdout]  --> src/language2/templater2.rs:6:51
[INFO] [stdout]   |
[INFO] [stdout] 6 |     use crate::language2::language2::{Dictionary, Noun};
[INFO] [stdout]   |                                                   ^^^^
[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)]` 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `AND_TOKEN` is never used
[INFO] [stdout]  --> src/language2/templater2.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     const AND_TOKEN: &str = "AND";
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OR_TOKEN` is never used
[INFO] [stdout]   --> src/language2/templater2.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 |     const OR_TOKEN: &str = "OR";
[INFO] [stdout]    |           ^^^^^^^^
[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: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_references)]` 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: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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]    = note: use `let _ = ...` to ignore the expression or result
[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]    = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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:197:29
[INFO] [stdout]     |
[INFO] [stdout] 197 | ...                   drop(noun);
[INFO] [stdout]     |                       ^^^^^----^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            argument has type `&mut Noun`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[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:212:29
[INFO] [stdout]     |
[INFO] [stdout] 212 | ...                   drop(adjective);
[INFO] [stdout]     |                       ^^^^^---------^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            argument has type `&mut Noun`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[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: 40 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.61s
[INFO] running `Command { std: "docker" "inspect" "81ea55aa27595b1265356c822308719327c72a19ffc52f4bcaab13a6119bb927", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81ea55aa27595b1265356c822308719327c72a19ffc52f4bcaab13a6119bb927", kill_on_drop: false }`
[INFO] [stdout] 81ea55aa27595b1265356c822308719327c72a19ffc52f4bcaab13a6119bb927
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67b4f2948e692dd1419e02a81eba822c031e28a305635efae7e1f71d25ca3b7d
[INFO] running `Command { std: "docker" "start" "-a" "67b4f2948e692dd1419e02a81eba822c031e28a305635efae7e1f71d25ca3b7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling city_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `uuid::Uuid`
[INFO] [stdout]  --> src/language2/templater2.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use uuid::Uuid;
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Noun`
[INFO] [stdout]  --> src/language2/templater2.rs:6:51
[INFO] [stdout]   |
[INFO] [stdout] 6 |     use crate::language2::language2::{Dictionary, Noun};
[INFO] [stdout]   |                                                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]    --> src/language2.rs:278:13
[INFO] [stdout]     |
[INFO] [stdout] 278 |         use std::collections::HashMap;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::Dictionary`
[INFO] [stdout]    --> src/language2.rs:282:13
[INFO] [stdout]     |
[INFO] [stdout] 282 |         use super::Dictionary;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[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)]` 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `AND_TOKEN` is never used
[INFO] [stdout]  --> src/language2/templater2.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     const AND_TOKEN: &str = "AND";
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OR_TOKEN` is never used
[INFO] [stdout]   --> src/language2/templater2.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 |     const OR_TOKEN: &str = "OR";
[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: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_references)]` 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: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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]    = note: use `let _ = ...` to ignore the expression or result
[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]    = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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:197:29
[INFO] [stdout]     |
[INFO] [stdout] 197 | ...                   drop(noun);
[INFO] [stdout]     |                       ^^^^^----^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            argument has type `&mut Noun`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[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:212:29
[INFO] [stdout]     |
[INFO] [stdout] 212 | ...                   drop(adjective);
[INFO] [stdout]     |                       ^^^^^---------^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            argument has type `&mut Noun`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[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: 39 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.07s
[INFO] running `Command { std: "docker" "inspect" "67b4f2948e692dd1419e02a81eba822c031e28a305635efae7e1f71d25ca3b7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67b4f2948e692dd1419e02a81eba822c031e28a305635efae7e1f71d25ca3b7d", kill_on_drop: false }`
[INFO] [stdout] 67b4f2948e692dd1419e02a81eba822c031e28a305635efae7e1f71d25ca3b7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a7c318a465a331b36be0fa925caf1a191353ab1511759ae342f0b0cdcb5fb12e
[INFO] running `Command { std: "docker" "start" "-a" "a7c318a465a331b36be0fa925caf1a191353ab1511759ae342f0b0cdcb5fb12e", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `uuid::Uuid`
[INFO] [stderr]  --> src/language2/templater2.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     use uuid::Uuid;
[INFO] [stderr]   |         ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Noun`
[INFO] [stderr]  --> src/language2/templater2.rs:6:51
[INFO] [stderr]   |
[INFO] [stderr] 6 |     use crate::language2::language2::{Dictionary, Noun};
[INFO] [stderr]   |                                                   ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]    --> src/language2.rs:278:13
[INFO] [stderr]     |
[INFO] [stderr] 278 |         use std::collections::HashMap;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::Dictionary`
[INFO] [stderr]    --> src/language2.rs:282:13
[INFO] [stderr]     |
[INFO] [stderr] 282 |         use super::Dictionary;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/city/population.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let mut city = c;
[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/city.rs:165:17
[INFO] [stderr]     |
[INFO] [stderr] 165 |             let mut worker = city.citizens.values_mut().find(|m| m.id.eq(&w.id)).unwrap();
[INFO] [stderr]     |                 ----^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function `hash_population_by_inst_visits` is never used
[INFO] [stderr]    --> src/city/population/mind/relations/friends.rs:168:8
[INFO] [stderr]     |
[INFO] [stderr] 168 |     fn hash_population_by_inst_visits(population: &Population) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `AND_TOKEN` is never used
[INFO] [stderr]  --> src/language2/templater2.rs:8:11
[INFO] [stderr]   |
[INFO] [stderr] 8 |     const AND_TOKEN: &str = "AND";
[INFO] [stderr]   |           ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `OR_TOKEN` is never used
[INFO] [stderr]   --> src/language2/templater2.rs:10:11
[INFO] [stderr]    |
[INFO] [stderr] 10 |     const OR_TOKEN: &str = "OR";
[INFO] [stderr]    |           ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/institutions/visits.rs:114:13
[INFO] [stderr]     |
[INFO] [stderr] 114 |             drop(inst);
[INFO] [stderr]     |             ^^^^^----^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  argument has type `&mut city::institutions::institutions::Institution`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/institutions/visits.rs:116:9
[INFO] [stderr]     |
[INFO] [stderr] 116 |         drop(mind);
[INFO] [stderr]     |         ^^^^^----^
[INFO] [stderr]     |              |
[INFO] [stderr]     |              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/institutions.rs:448:17
[INFO] [stderr]     |
[INFO] [stderr] 448 |                 drop(mind_mut);
[INFO] [stderr]     |                 ^^^^^--------^
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/institutions.rs:472:17
[INFO] [stderr]     |
[INFO] [stderr] 472 |                 drop(mind);
[INFO] [stderr]     |                 ^^^^^----^
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&city::population::mind::mind::Mind` instead of cloning the inner type
[INFO] [stderr]   --> src/city/population/mind/relations/friends.rs:52:40
[INFO] [stderr]    |
[INFO] [stderr] 52 |                         to_add_0.push(m.clone());
[INFO] [stderr]    |                                        ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&city::population::mind::mind::Mind` instead of cloning the inner type
[INFO] [stderr]   --> src/city/population/mind/relations/friends.rs:54:40
[INFO] [stderr]    |
[INFO] [stderr] 54 |                         to_add_1.push(m.clone());
[INFO] [stderr]    |                                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/friends.rs:180:21
[INFO] [stderr]     |
[INFO] [stderr] 180 |                     drop(current);
[INFO] [stderr]     |                     ^^^^^-------^
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          argument has type `&mut Vec<Uuid>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/friends.rs:196:25
[INFO] [stderr]     |
[INFO] [stderr] 196 |                         drop(mind);
[INFO] [stderr]     |                         ^^^^^----^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/friends.rs:205:25
[INFO] [stderr]     |
[INFO] [stderr] 205 |                         drop(mind);
[INFO] [stderr]     |                         ^^^^^----^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/friends.rs:220:25
[INFO] [stderr]     |
[INFO] [stderr] 220 |                         drop(mind);
[INFO] [stderr]     |                         ^^^^^----^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/friends.rs:232:25
[INFO] [stderr]     |
[INFO] [stderr] 232 |                         drop(mind);
[INFO] [stderr]     |                         ^^^^^----^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/friends.rs:246:25
[INFO] [stderr]     |
[INFO] [stderr] 246 |                         drop(mind);
[INFO] [stderr]     |                         ^^^^^----^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/friends.rs:315:21
[INFO] [stderr]     |
[INFO] [stderr] 315 |                     drop(friend_m);
[INFO] [stderr]     |                     ^^^^^--------^
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/friends.rs:321:21
[INFO] [stderr]     |
[INFO] [stderr] 321 |                     drop(mind_m);
[INFO] [stderr]     |                     ^^^^^------^
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stderr]   --> src/city/population/mind/relations/parental_naming_formats.rs:62:35
[INFO] [stderr]    |
[INFO] [stderr] 62 |             output.push_str(prefix.clone());
[INFO] [stderr]    |                                   ^^^^^^^^ help: remove this redundant call
[INFO] [stderr]    |
[INFO] [stderr]    = 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] [stderr]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/parents.rs:218:21
[INFO] [stderr]     |
[INFO] [stderr] 218 |                     drop(mind_1);
[INFO] [stderr]     |                     ^^^^^------^
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/parents.rs:225:21
[INFO] [stderr]     |
[INFO] [stderr] 225 |                     drop(mind_2);
[INFO] [stderr]     |                     ^^^^^------^
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/partners.rs:274:13
[INFO] [stderr]     |
[INFO] [stderr] 274 |             drop(mind_1);
[INFO] [stderr]     |             ^^^^^------^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/partners.rs:278:13
[INFO] [stderr]     |
[INFO] [stderr] 278 |             drop(mind_2);
[INFO] [stderr]     |             ^^^^^------^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]   --> src/city/population/mind/relations/residences.rs:38:21
[INFO] [stderr]    |
[INFO] [stderr] 38 |                     drop(m_mut);
[INFO] [stderr]    |                     ^^^^^-----^
[INFO] [stderr]    |                          |
[INFO] [stderr]    |                          argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]    |
[INFO] [stderr]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]   --> src/city/population/mind/relations/residences.rs:46:17
[INFO] [stderr]    |
[INFO] [stderr] 46 |                 drop(mind);
[INFO] [stderr]    |                 ^^^^^----^
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]    |
[INFO] [stderr]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/residences.rs:128:17
[INFO] [stderr]     |
[INFO] [stderr] 128 |                 drop(mind);
[INFO] [stderr]     |                 ^^^^^----^
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations.rs:156:17
[INFO] [stderr]     |
[INFO] [stderr] 156 |                 drop(m);
[INFO] [stderr]     |                 ^^^^^-^
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations.rs:245:29
[INFO] [stderr]     |
[INFO] [stderr] 245 | ...                   drop(sibling);
[INFO] [stderr]     |                       ^^^^^-------^
[INFO] [stderr]     |                            |
[INFO] [stderr]     |                            argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations.rs:269:29
[INFO] [stderr]     |
[INFO] [stderr] 269 | ...                   drop(pibling);
[INFO] [stderr]     |                       ^^^^^-------^
[INFO] [stderr]     |                            |
[INFO] [stderr]     |                            argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations.rs:339:25
[INFO] [stderr]     |
[INFO] [stderr] 339 |                         drop(cousin);
[INFO] [stderr]     |                         ^^^^^------^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&language::language::Word` instead of cloning the inner type
[INFO] [stderr]    --> src/language/nouns/food.rs:137:44
[INFO] [stderr]     |
[INFO] [stderr] 137 |         return ingredients.first().unwrap().clone();
[INFO] [stderr]     |                                            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/language2.rs:197:29
[INFO] [stderr]     |
[INFO] [stderr] 197 | ...                   drop(noun);
[INFO] [stderr]     |                       ^^^^^----^
[INFO] [stderr]     |                            |
[INFO] [stderr]     |                            argument has type `&mut Noun`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/language2.rs:212:29
[INFO] [stderr]     |
[INFO] [stderr] 212 | ...                   drop(adjective);
[INFO] [stderr]     |                       ^^^^^---------^
[INFO] [stderr]     |                            |
[INFO] [stderr]     |                            argument has type `&mut Noun`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stderr]   --> src/templater.rs:75:35
[INFO] [stderr]    |
[INFO] [stderr] 75 |             output.push_str(prefix.clone());
[INFO] [stderr]    |                                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `city_generator` (bin "city_generator" test) generated 39 warnings (run `cargo fix --bin "city_generator" --tests` to apply 7 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/city_generator-0ba3cea62dc5f3a8)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test city::population::mind::relations::parental_naming_formats::parental_naming_formats::test_parse_format ... ok
[INFO] [stdout] test language::adjectives::adjectives::test_adjective_parser ... ok
[INFO] [stdout] test parser::parser::format_data_files ... FAILED
[INFO] [stdout] test language::nouns::food::food::test_random_foods ... ok
[INFO] [stdout] test city::locations::locations::test_gen_location_name ... ok
[INFO] [stdout] test city::population::mind::appearance::appearance::random_description_test ... ok
[INFO] [stdout] test city::building::building::test_new_building ... ok
[INFO] [stdout] test culture::culture::test_random_culture ... ok
[INFO] [stdout] test language::nouns::nouns::test_noun_parser ... ok
[INFO] [stdout] test templater::templater::test_render_template ... ok
[INFO] [stdout] test city::institutions::food_institutions::food_institutions::test_random_spec_food_inst ... ok
[INFO] [stdout] test language2::names::names::tests::last_name_formats ... ok
[INFO] [stdout] test language2::templater2::templater2::tests::test_templater ... ok
[INFO] [stdout] test language2::language2::tests::tag_and_filter ... ok
[INFO] [stdout] test language2::names::names::tests::gen_names ... ok
[INFO] [stdout] test city::city::test_simulation has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "a7c318a465a331b36be0fa925caf1a191353ab1511759ae342f0b0cdcb5fb12e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7c318a465a331b36be0fa925caf1a191353ab1511759ae342f0b0cdcb5fb12e", kill_on_drop: false }`
[INFO] [stdout] a7c318a465a331b36be0fa925caf1a191353ab1511759ae342f0b0cdcb5fb12e
[INFO] testing CalirDeminar/city_generator against beta-2024-02-10 for beta-1.77-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCalirDeminar%2Fcity_generator" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CalirDeminar/city_generator on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-5-tc2/source/Cargo.toml
[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" "+beta-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab9e8719e678fcc5394de2e6b6ec165f605fd2631002ecf199cf0c7c45ddd2bb
[INFO] running `Command { std: "docker" "start" "-a" "ab9e8719e678fcc5394de2e6b6ec165f605fd2631002ecf199cf0c7c45ddd2bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab9e8719e678fcc5394de2e6b6ec165f605fd2631002ecf199cf0c7c45ddd2bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab9e8719e678fcc5394de2e6b6ec165f605fd2631002ecf199cf0c7c45ddd2bb", kill_on_drop: false }`
[INFO] [stdout] ab9e8719e678fcc5394de2e6b6ec165f605fd2631002ecf199cf0c7c45ddd2bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1656d692bbd71e5183cc502c478fa06537ba76b1f9d66e8777177a6cc945c61f
[INFO] running `Command { std: "docker" "start" "-a" "1656d692bbd71e5183cc502c478fa06537ba76b1f9d66e8777177a6cc945c61f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.58
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling utf8-width v0.1.6
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling regex-syntax v0.7.1
[INFO] [stderr]    Compiling strum v0.24.1
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling aho-corasick v1.0.1
[INFO] [stderr]    Compiling html-escape v0.2.13
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling html-builder v0.5.1
[INFO] [stderr]    Compiling syn v2.0.16
[INFO] [stderr]    Compiling getrandom v0.2.9
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling regex v1.8.1
[INFO] [stderr]    Compiling rand_distr v0.4.3
[INFO] [stderr]    Compiling uuid-macro-internal v1.3.3
[INFO] [stderr]    Compiling csv v1.2.1
[INFO] [stderr]    Compiling uuid v1.3.3
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]    Compiling city_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `uuid::Uuid`
[INFO] [stdout]  --> src/language2/templater2.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use uuid::Uuid;
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Noun`
[INFO] [stdout]  --> src/language2/templater2.rs:6:51
[INFO] [stdout]   |
[INFO] [stdout] 6 |     use crate::language2::language2::{Dictionary, Noun};
[INFO] [stdout]   |                                                   ^^^^
[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)]` 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `AND_TOKEN` is never used
[INFO] [stdout]  --> src/language2/templater2.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     const AND_TOKEN: &str = "AND";
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OR_TOKEN` is never used
[INFO] [stdout]   --> src/language2/templater2.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 |     const OR_TOKEN: &str = "OR";
[INFO] [stdout]    |           ^^^^^^^^
[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: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_references)]` 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: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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]    = note: use `let _ = ...` to ignore the expression or result
[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]    = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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:197:29
[INFO] [stdout]     |
[INFO] [stdout] 197 | ...                   drop(noun);
[INFO] [stdout]     |                       ^^^^^----^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            argument has type `&mut Noun`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[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:212:29
[INFO] [stdout]     |
[INFO] [stdout] 212 | ...                   drop(adjective);
[INFO] [stdout]     |                       ^^^^^---------^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            argument has type `&mut Noun`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[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: 40 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.78s
[INFO] running `Command { std: "docker" "inspect" "1656d692bbd71e5183cc502c478fa06537ba76b1f9d66e8777177a6cc945c61f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1656d692bbd71e5183cc502c478fa06537ba76b1f9d66e8777177a6cc945c61f", kill_on_drop: false }`
[INFO] [stdout] 1656d692bbd71e5183cc502c478fa06537ba76b1f9d66e8777177a6cc945c61f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9725d87d2c575f3f937c455b984eaf8a17f3a6ee9a33de4ec659f6635fadc6de
[INFO] running `Command { std: "docker" "start" "-a" "9725d87d2c575f3f937c455b984eaf8a17f3a6ee9a33de4ec659f6635fadc6de", kill_on_drop: false }`
[INFO] [stderr]    Compiling city_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `uuid::Uuid`
[INFO] [stdout]  --> src/language2/templater2.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use uuid::Uuid;
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Noun`
[INFO] [stdout]  --> src/language2/templater2.rs:6:51
[INFO] [stdout]   |
[INFO] [stdout] 6 |     use crate::language2::language2::{Dictionary, Noun};
[INFO] [stdout]   |                                                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]    --> src/language2.rs:278:13
[INFO] [stdout]     |
[INFO] [stdout] 278 |         use std::collections::HashMap;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::Dictionary`
[INFO] [stdout]    --> src/language2.rs:282:13
[INFO] [stdout]     |
[INFO] [stdout] 282 |         use super::Dictionary;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[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)]` 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `AND_TOKEN` is never used
[INFO] [stdout]  --> src/language2/templater2.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     const AND_TOKEN: &str = "AND";
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OR_TOKEN` is never used
[INFO] [stdout]   --> src/language2/templater2.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 |     const OR_TOKEN: &str = "OR";
[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: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_references)]` 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: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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]    = note: use `let _ = ...` to ignore the expression or result
[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]    = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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]     = note: use `let _ = ...` to ignore the expression or result
[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:197:29
[INFO] [stdout]     |
[INFO] [stdout] 197 | ...                   drop(noun);
[INFO] [stdout]     |                       ^^^^^----^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            argument has type `&mut Noun`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[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:212:29
[INFO] [stdout]     |
[INFO] [stdout] 212 | ...                   drop(adjective);
[INFO] [stdout]     |                       ^^^^^---------^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            argument has type `&mut Noun`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[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: 39 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.18s
[INFO] running `Command { std: "docker" "inspect" "9725d87d2c575f3f937c455b984eaf8a17f3a6ee9a33de4ec659f6635fadc6de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9725d87d2c575f3f937c455b984eaf8a17f3a6ee9a33de4ec659f6635fadc6de", kill_on_drop: false }`
[INFO] [stdout] 9725d87d2c575f3f937c455b984eaf8a17f3a6ee9a33de4ec659f6635fadc6de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 73cec4fb5c69bb4fb6a847c9749adfe581db15b5b4d23eb2b1a7e24357d9da6f
[INFO] running `Command { std: "docker" "start" "-a" "73cec4fb5c69bb4fb6a847c9749adfe581db15b5b4d23eb2b1a7e24357d9da6f", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `uuid::Uuid`
[INFO] [stderr]  --> src/language2/templater2.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     use uuid::Uuid;
[INFO] [stderr]   |         ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Noun`
[INFO] [stderr]  --> src/language2/templater2.rs:6:51
[INFO] [stderr]   |
[INFO] [stderr] 6 |     use crate::language2::language2::{Dictionary, Noun};
[INFO] [stderr]   |                                                   ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]    --> src/language2.rs:278:13
[INFO] [stderr]     |
[INFO] [stderr] 278 |         use std::collections::HashMap;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::Dictionary`
[INFO] [stderr]    --> src/language2.rs:282:13
[INFO] [stderr]     |
[INFO] [stderr] 282 |         use super::Dictionary;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/city/population.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let mut city = c;
[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/city.rs:165:17
[INFO] [stderr]     |
[INFO] [stderr] 165 |             let mut worker = city.citizens.values_mut().find(|m| m.id.eq(&w.id)).unwrap();
[INFO] [stderr]     |                 ----^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function `hash_population_by_inst_visits` is never used
[INFO] [stderr]    --> src/city/population/mind/relations/friends.rs:168:8
[INFO] [stderr]     |
[INFO] [stderr] 168 |     fn hash_population_by_inst_visits(population: &Population) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `AND_TOKEN` is never used
[INFO] [stderr]  --> src/language2/templater2.rs:8:11
[INFO] [stderr]   |
[INFO] [stderr] 8 |     const AND_TOKEN: &str = "AND";
[INFO] [stderr]   |           ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `OR_TOKEN` is never used
[INFO] [stderr]   --> src/language2/templater2.rs:10:11
[INFO] [stderr]    |
[INFO] [stderr] 10 |     const OR_TOKEN: &str = "OR";
[INFO] [stderr]    |           ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/institutions/visits.rs:114:13
[INFO] [stderr]     |
[INFO] [stderr] 114 |             drop(inst);
[INFO] [stderr]     |             ^^^^^----^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  argument has type `&mut city::institutions::institutions::Institution`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/institutions/visits.rs:116:9
[INFO] [stderr]     |
[INFO] [stderr] 116 |         drop(mind);
[INFO] [stderr]     |         ^^^^^----^
[INFO] [stderr]     |              |
[INFO] [stderr]     |              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/institutions.rs:448:17
[INFO] [stderr]     |
[INFO] [stderr] 448 |                 drop(mind_mut);
[INFO] [stderr]     |                 ^^^^^--------^
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/institutions.rs:472:17
[INFO] [stderr]     |
[INFO] [stderr] 472 |                 drop(mind);
[INFO] [stderr]     |                 ^^^^^----^
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&city::population::mind::mind::Mind` instead of cloning the inner type
[INFO] [stderr]   --> src/city/population/mind/relations/friends.rs:52:40
[INFO] [stderr]    |
[INFO] [stderr] 52 |                         to_add_0.push(m.clone());
[INFO] [stderr]    |                                        ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&city::population::mind::mind::Mind` instead of cloning the inner type
[INFO] [stderr]   --> src/city/population/mind/relations/friends.rs:54:40
[INFO] [stderr]    |
[INFO] [stderr] 54 |                         to_add_1.push(m.clone());
[INFO] [stderr]    |                                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/friends.rs:180:21
[INFO] [stderr]     |
[INFO] [stderr] 180 |                     drop(current);
[INFO] [stderr]     |                     ^^^^^-------^
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          argument has type `&mut Vec<Uuid>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/friends.rs:196:25
[INFO] [stderr]     |
[INFO] [stderr] 196 |                         drop(mind);
[INFO] [stderr]     |                         ^^^^^----^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/friends.rs:205:25
[INFO] [stderr]     |
[INFO] [stderr] 205 |                         drop(mind);
[INFO] [stderr]     |                         ^^^^^----^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/friends.rs:220:25
[INFO] [stderr]     |
[INFO] [stderr] 220 |                         drop(mind);
[INFO] [stderr]     |                         ^^^^^----^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/friends.rs:232:25
[INFO] [stderr]     |
[INFO] [stderr] 232 |                         drop(mind);
[INFO] [stderr]     |                         ^^^^^----^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/friends.rs:246:25
[INFO] [stderr]     |
[INFO] [stderr] 246 |                         drop(mind);
[INFO] [stderr]     |                         ^^^^^----^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/friends.rs:315:21
[INFO] [stderr]     |
[INFO] [stderr] 315 |                     drop(friend_m);
[INFO] [stderr]     |                     ^^^^^--------^
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/friends.rs:321:21
[INFO] [stderr]     |
[INFO] [stderr] 321 |                     drop(mind_m);
[INFO] [stderr]     |                     ^^^^^------^
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stderr]   --> src/city/population/mind/relations/parental_naming_formats.rs:62:35
[INFO] [stderr]    |
[INFO] [stderr] 62 |             output.push_str(prefix.clone());
[INFO] [stderr]    |                                   ^^^^^^^^ help: remove this redundant call
[INFO] [stderr]    |
[INFO] [stderr]    = 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] [stderr]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/parents.rs:218:21
[INFO] [stderr]     |
[INFO] [stderr] 218 |                     drop(mind_1);
[INFO] [stderr]     |                     ^^^^^------^
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/parents.rs:225:21
[INFO] [stderr]     |
[INFO] [stderr] 225 |                     drop(mind_2);
[INFO] [stderr]     |                     ^^^^^------^
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/partners.rs:274:13
[INFO] [stderr]     |
[INFO] [stderr] 274 |             drop(mind_1);
[INFO] [stderr]     |             ^^^^^------^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/partners.rs:278:13
[INFO] [stderr]     |
[INFO] [stderr] 278 |             drop(mind_2);
[INFO] [stderr]     |             ^^^^^------^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]   --> src/city/population/mind/relations/residences.rs:38:21
[INFO] [stderr]    |
[INFO] [stderr] 38 |                     drop(m_mut);
[INFO] [stderr]    |                     ^^^^^-----^
[INFO] [stderr]    |                          |
[INFO] [stderr]    |                          argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]    |
[INFO] [stderr]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]   --> src/city/population/mind/relations/residences.rs:46:17
[INFO] [stderr]    |
[INFO] [stderr] 46 |                 drop(mind);
[INFO] [stderr]    |                 ^^^^^----^
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]    |
[INFO] [stderr]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations/residences.rs:128:17
[INFO] [stderr]     |
[INFO] [stderr] 128 |                 drop(mind);
[INFO] [stderr]     |                 ^^^^^----^
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations.rs:156:17
[INFO] [stderr]     |
[INFO] [stderr] 156 |                 drop(m);
[INFO] [stderr]     |                 ^^^^^-^
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations.rs:245:29
[INFO] [stderr]     |
[INFO] [stderr] 245 | ...                   drop(sibling);
[INFO] [stderr]     |                       ^^^^^-------^
[INFO] [stderr]     |                            |
[INFO] [stderr]     |                            argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations.rs:269:29
[INFO] [stderr]     |
[INFO] [stderr] 269 | ...                   drop(pibling);
[INFO] [stderr]     |                       ^^^^^-------^
[INFO] [stderr]     |                            |
[INFO] [stderr]     |                            argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/city/population/mind/relations.rs:339:25
[INFO] [stderr]     |
[INFO] [stderr] 339 |                         drop(cousin);
[INFO] [stderr]     |                         ^^^^^------^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              argument has type `&mut city::population::mind::mind::Mind`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&language::language::Word` instead of cloning the inner type
[INFO] [stderr]    --> src/language/nouns/food.rs:137:44
[INFO] [stderr]     |
[INFO] [stderr] 137 |         return ingredients.first().unwrap().clone();
[INFO] [stderr]     |                                            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/language2.rs:197:29
[INFO] [stderr]     |
[INFO] [stderr] 197 | ...                   drop(noun);
[INFO] [stderr]     |                       ^^^^^----^
[INFO] [stderr]     |                            |
[INFO] [stderr]     |                            argument has type `&mut Noun`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/language2.rs:212:29
[INFO] [stderr]     |
[INFO] [stderr] 212 | ...                   drop(adjective);
[INFO] [stderr]     |                       ^^^^^---------^
[INFO] [stderr]     |                            |
[INFO] [stderr]     |                            argument has type `&mut Noun`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stderr]   --> src/templater.rs:75:35
[INFO] [stderr]    |
[INFO] [stderr] 75 |             output.push_str(prefix.clone());
[INFO] [stderr]    |                                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `city_generator` (bin "city_generator" test) generated 39 warnings (run `cargo fix --bin "city_generator" --tests` to apply 7 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/city_generator-70a80a285bd89410)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test city::population::mind::relations::parental_naming_formats::parental_naming_formats::test_parse_format ... ok
[INFO] [stdout] test language::adjectives::adjectives::test_adjective_parser ... ok
[INFO] [stdout] test parser::parser::format_data_files ... FAILED
[INFO] [stdout] test language::nouns::nouns::test_noun_parser ... ok
[INFO] [stdout] test language::nouns::food::food::test_random_foods ... ok
[INFO] [stdout] test city::locations::locations::test_gen_location_name ... ok
[INFO] [stdout] test city::building::building::test_new_building ... ok
[INFO] [stdout] test templater::templater::test_render_template ... ok
[INFO] [stdout] test city::population::mind::appearance::appearance::random_description_test ... ok
[INFO] [stdout] test culture::culture::test_random_culture ... ok
[INFO] [stdout] test city::institutions::food_institutions::food_institutions::test_random_spec_food_inst ... ok
[INFO] [stdout] test language2::names::names::tests::last_name_formats ... ok
[INFO] [stdout] test language2::language2::tests::tag_and_filter ... ok
[INFO] [stdout] test language2::templater2::templater2::tests::test_templater ... ok
[INFO] [stdout] test language2::names::names::tests::gen_names ... ok
[INFO] [stdout] test city::city::test_simulation has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "73cec4fb5c69bb4fb6a847c9749adfe581db15b5b4d23eb2b1a7e24357d9da6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73cec4fb5c69bb4fb6a847c9749adfe581db15b5b4d23eb2b1a7e24357d9da6f", kill_on_drop: false }`
[INFO] [stdout] 73cec4fb5c69bb4fb6a847c9749adfe581db15b5b4d23eb2b1a7e24357d9da6f
