[INFO] cloning repository https://github.com/GBujak/bfplan
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GBujak/bfplan" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGBujak%2Fbfplan", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGBujak%2Fbfplan'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cde88b7b07ba8331182440b166b6e68bd011d417
[INFO] checking GBujak/bfplan against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGBujak%2Fbfplan" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GBujak/bfplan on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/GBujak/bfplan
[INFO] finished tweaking git repo https://github.com/GBujak/bfplan
[INFO] tweaked toml for git repo https://github.com/GBujak/bfplan written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/GBujak/bfplan already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cbc35861356cc922e955321a587442841a0430f927b36ce481ac65228723d29
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6cbc35861356cc922e955321a587442841a0430f927b36ce481ac65228723d29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cbc35861356cc922e955321a587442841a0430f927b36ce481ac65228723d29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cbc35861356cc922e955321a587442841a0430f927b36ce481ac65228723d29", kill_on_drop: false }`
[INFO] [stdout] 6cbc35861356cc922e955321a587442841a0430f927b36ce481ac65228723d29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7bf3c41adddcfa4874bc667e5fba545c7b9f033506ea9bbb239378c87cc73d3d
[INFO] running `Command { std: "docker" "start" "-a" "7bf3c41adddcfa4874bc667e5fba545c7b9f033506ea9bbb239378c87cc73d3d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]     Checking serde v1.0.124
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking bfplan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/data_types/lesson.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/data_types/simple_date.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Subject`
[INFO] [stdout]  --> src/annealing/adapter.rs:4:43
[INFO] [stdout]   |
[INFO] [stdout] 4 |     data_types::{Classroom, StudentGroup, Subject, Teacher},
[INFO] [stdout]   |                                           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::input::PlanInput`
[INFO] [stdout]  --> src/annealing/annealing_buffer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::input::PlanInput;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::mutation::*`
[INFO] [stdout]  --> src/annealing/annealing_buffer.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::mutation::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/data_types/lesson.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/data_types/simple_date.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Subject`
[INFO] [stdout]  --> src/annealing/adapter.rs:4:43
[INFO] [stdout]   |
[INFO] [stdout] 4 |     data_types::{Classroom, StudentGroup, Subject, Teacher},
[INFO] [stdout]   |                                           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::input::PlanInput`
[INFO] [stdout]  --> src/annealing/annealing_buffer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::input::PlanInput;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::mutation::*`
[INFO] [stdout]  --> src/annealing/annealing_buffer.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::mutation::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/data_types/subject.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new(name: String, subject_type: SubjectType, count: i8) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/data_types/teacher.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(name: String, can_teach: Vec<String>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_logic_error`
[INFO] [stdout]   --> src/illegal_state.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn is_logic_error(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/input.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `subject_info`
[INFO] [stdout]   --> src/annealing/adapter.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     subject_info: HashMap<&'a str, SubjectInfo<'a>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `lesson_info`
[INFO] [stdout]   --> src/annealing/adapter.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     lesson_info: Vec<LessonInfo<'a>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `plan_input`
[INFO] [stdout]   --> src/annealing/adapter.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     plan_input: Option<&'a PlanInput>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `of_plan_input`
[INFO] [stdout]   --> src/annealing/adapter.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn of_plan_input(plan_input: &'a PlanInput) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `teacher_count`
[INFO] [stdout]   --> src/annealing/annealing_buffer.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     teacher_count: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `classroom_count`
[INFO] [stdout]   --> src/annealing/annealing_buffer.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     classroom_count: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `can_teach`
[INFO] [stdout]   --> src/annealing/annealing_buffer.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     can_teach: HashSet<(u8, u8)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `can_hold`
[INFO] [stdout]   --> src/annealing/annealing_buffer.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     can_hold: HashSet<(u8, u8)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `classroom_time_map`
[INFO] [stdout]   --> src/annealing/annealing_buffer.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     classroom_time_map: HashMap<ClassroomTimeKey, u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `teacher_time_map`
[INFO] [stdout]   --> src/annealing/annealing_buffer.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     teacher_time_map: HashMap<TeacherTimeKey, u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `lessons`
[INFO] [stdout]   --> src/annealing/annealing_buffer.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     lessons: Vec<Lesson>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/annealing/annealing_buffer.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_free_teacher`
[INFO] [stdout]   --> src/annealing/annealing_buffer.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn is_free_teacher(&self, teacher_tk: TeacherTimeKey) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_free_classroom`
[INFO] [stdout]   --> src/annealing/annealing_buffer.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn is_free_classroom(&self, classroom_tk: ClassroomTimeKey) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `IllegalBuffer`
[INFO] [stdout]   --> src/annealing/illegal_buffer.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct IllegalBuffer {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/annealing/illegal_buffer.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn new(can_teach: HashSet<CanTeach>, can_hold: HashSet<CanHold>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `can_teach`
[INFO] [stdout]   --> src/annealing/illegal_buffer.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn can_teach(&self, can_teach: CanTeach) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `can_hold`
[INFO] [stdout]   --> src/annealing/illegal_buffer.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn can_hold(&self, can_hold: CanHold) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_can_teach`
[INFO] [stdout]   --> src/annealing/illegal_buffer.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn insert_can_teach(&mut self, can_teach: CanTeach) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_can_hold`
[INFO] [stdout]   --> src/annealing/illegal_buffer.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn insert_can_hold(&mut self, can_hold: CanHold) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `MutationType`
[INFO] [stdout]  --> src/annealing/mutation.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum MutationType {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Mutation`
[INFO] [stdout]   --> src/annealing/mutation.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Mutation {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/annealing/mutation.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(target_lesson: u8, mutation_type: MutationType) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reverse_mutation`
[INFO] [stdout]   --> src/annealing/mutation.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn reverse_mutation(&self, applied_to_id: u8, applied_to: &Lesson) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/data_types/subject.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new(name: String, subject_type: SubjectType, count: i8) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/data_types/teacher.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(name: String, can_teach: Vec<String>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_logic_error`
[INFO] [stdout]   --> src/illegal_state.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn is_logic_error(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/input.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `subject_info`
[INFO] [stdout]   --> src/annealing/adapter.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     subject_info: HashMap<&'a str, SubjectInfo<'a>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `lesson_info`
[INFO] [stdout]   --> src/annealing/adapter.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     lesson_info: Vec<LessonInfo<'a>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `plan_input`
[INFO] [stdout]   --> src/annealing/adapter.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     plan_input: Option<&'a PlanInput>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `of_plan_input`
[INFO] [stdout]   --> src/annealing/adapter.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn of_plan_input(plan_input: &'a PlanInput) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `teacher_count`
[INFO] [stdout]   --> src/annealing/annealing_buffer.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     teacher_count: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `classroom_count`
[INFO] [stdout]   --> src/annealing/annealing_buffer.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     classroom_count: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `can_teach`
[INFO] [stdout]   --> src/annealing/annealing_buffer.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     can_teach: HashSet<(u8, u8)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `can_hold`
[INFO] [stdout]   --> src/annealing/annealing_buffer.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     can_hold: HashSet<(u8, u8)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `classroom_time_map`
[INFO] [stdout]   --> src/annealing/annealing_buffer.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     classroom_time_map: HashMap<ClassroomTimeKey, u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `teacher_time_map`
[INFO] [stdout]   --> src/annealing/annealing_buffer.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     teacher_time_map: HashMap<TeacherTimeKey, u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `lessons`
[INFO] [stdout]   --> src/annealing/annealing_buffer.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     lessons: Vec<Lesson>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/annealing/annealing_buffer.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_free_teacher`
[INFO] [stdout]   --> src/annealing/annealing_buffer.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn is_free_teacher(&self, teacher_tk: TeacherTimeKey) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_free_classroom`
[INFO] [stdout]   --> src/annealing/annealing_buffer.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn is_free_classroom(&self, classroom_tk: ClassroomTimeKey) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `IllegalBuffer`
[INFO] [stdout]   --> src/annealing/illegal_buffer.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct IllegalBuffer {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/annealing/illegal_buffer.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn new(can_teach: HashSet<CanTeach>, can_hold: HashSet<CanHold>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `can_teach`
[INFO] [stdout]   --> src/annealing/illegal_buffer.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn can_teach(&self, can_teach: CanTeach) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `can_hold`
[INFO] [stdout]   --> src/annealing/illegal_buffer.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn can_hold(&self, can_hold: CanHold) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_can_teach`
[INFO] [stdout]   --> src/annealing/illegal_buffer.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn insert_can_teach(&mut self, can_teach: CanTeach) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_can_hold`
[INFO] [stdout]   --> src/annealing/illegal_buffer.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn insert_can_hold(&mut self, can_hold: CanHold) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `MutationType`
[INFO] [stdout]  --> src/annealing/mutation.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum MutationType {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Mutation`
[INFO] [stdout]   --> src/annealing/mutation.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Mutation {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/annealing/mutation.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(target_lesson: u8, mutation_type: MutationType) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reverse_mutation`
[INFO] [stdout]   --> src/annealing/mutation.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn reverse_mutation(&self, applied_to_id: u8, applied_to: &Lesson) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.83s
[INFO] running `Command { std: "docker" "inspect" "7bf3c41adddcfa4874bc667e5fba545c7b9f033506ea9bbb239378c87cc73d3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bf3c41adddcfa4874bc667e5fba545c7b9f033506ea9bbb239378c87cc73d3d", kill_on_drop: false }`
[INFO] [stdout] 7bf3c41adddcfa4874bc667e5fba545c7b9f033506ea9bbb239378c87cc73d3d