[INFO] cloning repository https://github.com/zxqcs/rusmachine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zxqcs/rusmachine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzxqcs%2Frusmachine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzxqcs%2Frusmachine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9e911e35f03dc85e5a544e30a501bb4a7fdef215
[INFO] testing zxqcs/rusmachine against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzxqcs%2Frusmachine" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zxqcs/rusmachine on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zxqcs/rusmachine
[INFO] finished tweaking git repo https://github.com/zxqcs/rusmachine
[INFO] tweaked toml for git repo https://github.com/zxqcs/rusmachine written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/zxqcs/rusmachine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7983d91dc0fe3031d49b015f1ee0696a8a047dcb837efa48715751f79410f7cf
[INFO] running `Command { std: "docker" "start" "-a" "7983d91dc0fe3031d49b015f1ee0696a8a047dcb837efa48715751f79410f7cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7983d91dc0fe3031d49b015f1ee0696a8a047dcb837efa48715751f79410f7cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7983d91dc0fe3031d49b015f1ee0696a8a047dcb837efa48715751f79410f7cf", kill_on_drop: false }`
[INFO] [stdout] 7983d91dc0fe3031d49b015f1ee0696a8a047dcb837efa48715751f79410f7cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5453dbe9ded4b8ef3aa130dea2e7b00e32cd2c4f0c3d05d2f2e430799197907f
[INFO] running `Command { std: "docker" "start" "-a" "5453dbe9ded4b8ef3aa130dea2e7b00e32cd2c4f0c3d05d2f2e430799197907f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling machine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::scheme_list`
[INFO] [stdout]  --> src/assembler.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use crate::scheme_list;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `append`, `set_car`
[INFO] [stdout]  --> src/assembler.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         append, car, cdr, scheme_cons, set_car, set_cdr, Exp, Pair,
[INFO] [stdout]   |         ^^^^^^                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::infrastructure::register::Register`
[INFO] [stdout]  --> src/gc.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     use crate::infrastructure::register::Register;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `machine_case` should have an upper camel case name
[INFO] [stdout]  --> src/machine_cases.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub struct machine_case {
[INFO] [stdout]   |                ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `MachineCase`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/memory.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 |         fmt::{self, write},
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gc::garbage_collector::garbage_collector`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use gc::garbage_collector::garbage_collector;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `register`, `stack::Stack`
[INFO] [stdout]   --> src/main.rs:18:22
[INFO] [stdout]    |
[INFO] [stdout] 18 | use infrastructure::{register, stack::Stack};
[INFO] [stdout]    |                      ^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/gc.rs:208:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |             label_one => reassign_root(machine, memory),
[INFO] [stdout]     |             --------- matches any value
[INFO] [stdout] 208 |             label_two => gc_loop(machine, memory),
[INFO] [stdout]     |             ^^^^^^^^^ unreachable pattern
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/gc.rs:209:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |             label_one => reassign_root(machine, memory),
[INFO] [stdout]     |             --------- matches any value
[INFO] [stdout] 208 |             label_two => gc_loop(machine, memory),
[INFO] [stdout] 209 |             label_three => gc_flip(memory),
[INFO] [stdout]     |             ^^^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/gc.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |             label_one => reassign_root(machine, memory),
[INFO] [stdout]     |             --------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 210 |             label_four => update_car(machine, memory),
[INFO] [stdout]     |             ^^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/gc.rs:211:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |             label_one => reassign_root(machine, memory),
[INFO] [stdout]     |             --------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 211 |             label_five => update_cdr(machine, memory),
[INFO] [stdout]     |             ^^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/gc.rs:212:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |             label_one => reassign_root(machine, memory),
[INFO] [stdout]     |             --------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 212 |             _ => panic!("not a proper label!"),
[INFO] [stdout]     |             ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insts`
[INFO] [stdout]   --> src/assembler.rs:37:24
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn update_inst(insts: Exp, labels: Exp, machine: &mut BasicMachine) -> Exp {
[INFO] [stdout]    |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_insts`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `labels`
[INFO] [stdout]   --> src/assembler.rs:37:36
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn update_inst(insts: Exp, labels: Exp, machine: &mut BasicMachine) -> Exp {
[INFO] [stdout]    |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_labels`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `machine`
[INFO] [stdout]   --> src/assembler.rs:37:49
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn update_inst(insts: Exp, labels: Exp, machine: &mut BasicMachine) -> Exp {
[INFO] [stdout]    |                                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `labels`
[INFO] [stdout]   --> src/assembler.rs:72:21
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn lookup_label(labels: Exp, label_name: Exp) -> Exp {
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_labels`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_name`
[INFO] [stdout]   --> src/assembler.rs:72:34
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn lookup_label(labels: Exp, label_name: Exp) -> Exp {
[INFO] [stdout]    |                                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label`
[INFO] [stdout]   --> src/gc.rs:63:25
[INFO] [stdout]    |
[INFO] [stdout] 63 |                     let label = machine.get_register_contents("relocate_continue").unwrap();
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_label`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/gc.rs:81:17
[INFO] [stdout]    |
[INFO] [stdout] 81 |         let mut x = Object::Nil;
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label`
[INFO] [stdout]    --> src/gc.rs:135:25
[INFO] [stdout]     |
[INFO] [stdout] 135 |                     let label = machine.get_register_contents("relocate_continue").unwrap();
[INFO] [stdout]     |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_label`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/gc.rs:154:30
[INFO] [stdout]     |
[INFO] [stdout] 154 |                 Object::Pair(x) => true,
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_one`
[INFO] [stdout]    --> src/gc.rs:200:13
[INFO] [stdout]     |
[INFO] [stdout] 200 |         let label_one = Object::Symbol("reassign-root".to_string());
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_one`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_two`
[INFO] [stdout]    --> src/gc.rs:201:13
[INFO] [stdout]     |
[INFO] [stdout] 201 |         let label_two = Object::Symbol("gc-loop".to_string());
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_two`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_three`
[INFO] [stdout]    --> src/gc.rs:202:13
[INFO] [stdout]     |
[INFO] [stdout] 202 |         let label_three = Object::Symbol("gc_flip".to_string());
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_three`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_four`
[INFO] [stdout]    --> src/gc.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let label_four = Object::Symbol("update_car".to_string());
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_four`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_five`
[INFO] [stdout]    --> src/gc.rs:204:13
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let label_five = Object::Symbol("update_cdr".to_string());
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_five`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_one`
[INFO] [stdout]    --> src/gc.rs:207:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |             label_one => reassign_root(machine, memory),
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_one`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_two`
[INFO] [stdout]    --> src/gc.rs:208:13
[INFO] [stdout]     |
[INFO] [stdout] 208 |             label_two => gc_loop(machine, memory),
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_two`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_three`
[INFO] [stdout]    --> src/gc.rs:209:13
[INFO] [stdout]     |
[INFO] [stdout] 209 |             label_three => gc_flip(memory),
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_three`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_four`
[INFO] [stdout]    --> src/gc.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 210 |             label_four => update_car(machine, memory),
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_four`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_five`
[INFO] [stdout]    --> src/gc.rs:211:13
[INFO] [stdout]     |
[INFO] [stdout] 211 |             label_five => update_cdr(machine, memory),
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_five`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/machine.rs:177:38
[INFO] [stdout]     |
[INFO] [stdout] 177 |         pub fn assign_car(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/machine.rs:177:55
[INFO] [stdout]     |
[INFO] [stdout] 177 |         pub fn assign_car(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                                       ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `memory`
[INFO] [stdout]    --> src/machine.rs:177:72
[INFO] [stdout]     |
[INFO] [stdout] 177 |         pub fn assign_car(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/machine.rs:181:38
[INFO] [stdout]     |
[INFO] [stdout] 181 |         pub fn assign_cdr(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/machine.rs:181:55
[INFO] [stdout]     |
[INFO] [stdout] 181 |         pub fn assign_cdr(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                                       ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `memory`
[INFO] [stdout]    --> src/machine.rs:181:72
[INFO] [stdout]     |
[INFO] [stdout] 181 |         pub fn assign_cdr(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/machine.rs:185:35
[INFO] [stdout]     |
[INFO] [stdout] 185 |         pub fn set_car(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/machine.rs:185:52
[INFO] [stdout]     |
[INFO] [stdout] 185 |         pub fn set_car(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                                    ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `memory`
[INFO] [stdout]    --> src/machine.rs:185:69
[INFO] [stdout]     |
[INFO] [stdout] 185 |         pub fn set_car(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/machine.rs:189:35
[INFO] [stdout]     |
[INFO] [stdout] 189 |         pub fn set_cdr(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/machine.rs:189:52
[INFO] [stdout]     |
[INFO] [stdout] 189 |         pub fn set_cdr(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                                    ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `memory`
[INFO] [stdout]    --> src/machine.rs:189:69
[INFO] [stdout]     |
[INFO] [stdout] 189 |         pub fn set_cdr(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/machine.rs:195:13
[INFO] [stdout]     |
[INFO] [stdout] 195 |             x: &'static str,
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/machine.rs:196:13
[INFO] [stdout]     |
[INFO] [stdout] 196 |             y: &'static str,
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]    --> src/machine.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |             z: &'static str,
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `memory`
[INFO] [stdout]    --> src/machine.rs:198:13
[INFO] [stdout]     |
[INFO] [stdout] 198 |             memory: &mut Memory,
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/memory.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |             for i in 0..size {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]    --> src/tpfordev.rs:108:37
[INFO] [stdout]     |
[INFO] [stdout] 108 |         if let Exp::List(Pair::Cons(lhs, rhs)) = x {
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/tpfordev.rs:117:42
[INFO] [stdout]     |
[INFO] [stdout] 117 |         if let Exp::List(Pair::Cons(lhs, rhs)) = x {
[INFO] [stdout]     |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let mut ss = s.replace("(", " ( ");
[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: function is never used: `garbage_collector`
[INFO] [stdout]  --> src/gc.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn garbage_collector(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `reassign_root`
[INFO] [stdout]   --> src/gc.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn reassign_root(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `relocate_old_result_in_new`
[INFO] [stdout]   --> src/gc.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn relocate_old_result_in_new(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `relocate_pair`
[INFO] [stdout]   --> src/gc.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn relocate_pair(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `assign_to_register_from_memory`
[INFO] [stdout]   --> src/gc.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn assign_to_register_from_memory(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `perform_memeory_set`
[INFO] [stdout]    --> src/gc.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn perform_memeory_set(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `give_a_location`
[INFO] [stdout]    --> src/gc.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn give_a_location(machine: &BasicMachine, name: &'static str) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `already_moved`
[INFO] [stdout]    --> src/gc.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn already_moved(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_pair`
[INFO] [stdout]    --> src/gc.rs:150:8
[INFO] [stdout]     |
[INFO] [stdout] 150 |     fn is_pair(old: &Object, memory: &Memory) -> bool {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `update_car`
[INFO] [stdout]    --> src/gc.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn update_car(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `update_cdr`
[INFO] [stdout]    --> src/gc.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout] 171 |     fn update_cdr(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gc_loop`
[INFO] [stdout]    --> src/gc.rs:178:8
[INFO] [stdout]     |
[INFO] [stdout] 178 |     fn gc_loop(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gc_flip`
[INFO] [stdout]    --> src/gc.rs:191:8
[INFO] [stdout]     |
[INFO] [stdout] 191 |     fn gc_flip(memory: &mut Memory) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `where_to_go`
[INFO] [stdout]    --> src/gc.rs:195:8
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn where_to_go(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/infrastructure.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 |         pub fn new(s: &'static str) -> Self {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `car`
[INFO] [stdout]   --> src/infrastructure.rs:62:16
[INFO] [stdout]    |
[INFO] [stdout] 62 |         pub fn car(&self, memory: &Memory) -> Object {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cdr`
[INFO] [stdout]   --> src/infrastructure.rs:67:16
[INFO] [stdout]    |
[INFO] [stdout] 67 |         pub fn cdr(&self, memory: &Memory) -> Object {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `capacity`
[INFO] [stdout]    --> src/infrastructure.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 |         capacity: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/infrastructure.rs:177:16
[INFO] [stdout]     |
[INFO] [stdout] 177 |         pub fn new() -> Self {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push`
[INFO] [stdout]    --> src/infrastructure.rs:184:16
[INFO] [stdout]     |
[INFO] [stdout] 184 |         pub fn push(&mut self, item: Object) {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop`
[INFO] [stdout]    --> src/infrastructure.rs:192:16
[INFO] [stdout]     |
[INFO] [stdout] 192 |         pub fn pop(&mut self) -> Option<Object> {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stack`
[INFO] [stdout]   --> src/machine.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         stack: Stack,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `initilize_registers`
[INFO] [stdout]   --> src/machine.rs:25:16
[INFO] [stdout]    |
[INFO] [stdout] 25 |         pub fn initilize_registers(&mut self) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/machine.rs:47:16
[INFO] [stdout]    |
[INFO] [stdout] 47 |         pub fn new() -> Self {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_register_contents_as_in_memory`
[INFO] [stdout]    --> src/machine.rs:110:16
[INFO] [stdout]     |
[INFO] [stdout] 110 |         pub fn set_register_contents_as_in_memory(
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/memory.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 |         pub fn new(size: usize) -> Self {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `capacity`
[INFO] [stdout]   --> src/memory.rs:30:16
[INFO] [stdout]    |
[INFO] [stdout] 30 |         pub fn capacity(&self) -> usize {
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `flip`
[INFO] [stdout]   --> src/memory.rs:55:16
[INFO] [stdout]    |
[INFO] [stdout] 55 |         pub fn flip(&mut self) {
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_car`
[INFO] [stdout]   --> src/memory.rs:77:16
[INFO] [stdout]    |
[INFO] [stdout] 77 |         pub fn new_car(&self, i: usize) -> Object {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_cdr`
[INFO] [stdout]   --> src/memory.rs:83:16
[INFO] [stdout]    |
[INFO] [stdout] 83 |         pub fn new_cdr(&self, i: usize) -> Object {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Empty`
[INFO] [stdout]   --> src/representation.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         Empty,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `build_syntax_tree_into_memeory_works`
[INFO] [stdout]   --> src/main.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn build_syntax_tree_into_memeory_works() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_register_contents_as_in_memory_works`
[INFO] [stdout]   --> src/main.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn set_register_contents_as_in_memory_works() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `str_to_exp_works`
[INFO] [stdout]   --> src/main.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn str_to_exp_works() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `BROKEN_HEART` should have a snake case name
[INFO] [stdout]   --> src/gc.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let BROKEN_HEART = Object::Symbol("broken_heart".to_string());
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: convert the identifier to snake case: `broken_heart`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 86 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.74s
[INFO] running `Command { std: "docker" "inspect" "5453dbe9ded4b8ef3aa130dea2e7b00e32cd2c4f0c3d05d2f2e430799197907f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5453dbe9ded4b8ef3aa130dea2e7b00e32cd2c4f0c3d05d2f2e430799197907f", kill_on_drop: false }`
[INFO] [stdout] 5453dbe9ded4b8ef3aa130dea2e7b00e32cd2c4f0c3d05d2f2e430799197907f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 191e8d603f9cf9f94826853e0a24e9da20a10f14e3f4225065d7cb71e796b762
[INFO] running `Command { std: "docker" "start" "-a" "191e8d603f9cf9f94826853e0a24e9da20a10f14e3f4225065d7cb71e796b762", kill_on_drop: false }`
[INFO] [stderr]    Compiling machine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::scheme_list`
[INFO] [stdout]  --> src/assembler.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use crate::scheme_list;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `append`, `set_car`
[INFO] [stdout]  --> src/assembler.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         append, car, cdr, scheme_cons, set_car, set_cdr, Exp, Pair,
[INFO] [stdout]   |         ^^^^^^                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::infrastructure::register::Register`
[INFO] [stdout]  --> src/gc.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     use crate::infrastructure::register::Register;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::garbage_collector`
[INFO] [stdout]    --> src/gc.rs:219:9
[INFO] [stdout]     |
[INFO] [stdout] 219 |     use super::garbage_collector;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `machine_case` should have an upper camel case name
[INFO] [stdout]  --> src/machine_cases.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub struct machine_case {
[INFO] [stdout]   |                ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `MachineCase`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/memory.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 |         fmt::{self, write},
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gc::garbage_collector::garbage_collector`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use gc::garbage_collector::garbage_collector;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `register`, `stack::Stack`
[INFO] [stdout]   --> src/main.rs:18:22
[INFO] [stdout]    |
[INFO] [stdout] 18 | use infrastructure::{register, stack::Stack};
[INFO] [stdout]    |                      ^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/gc.rs:208:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |             label_one => reassign_root(machine, memory),
[INFO] [stdout]     |             --------- matches any value
[INFO] [stdout] 208 |             label_two => gc_loop(machine, memory),
[INFO] [stdout]     |             ^^^^^^^^^ unreachable pattern
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/gc.rs:209:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |             label_one => reassign_root(machine, memory),
[INFO] [stdout]     |             --------- matches any value
[INFO] [stdout] 208 |             label_two => gc_loop(machine, memory),
[INFO] [stdout] 209 |             label_three => gc_flip(memory),
[INFO] [stdout]     |             ^^^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/gc.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |             label_one => reassign_root(machine, memory),
[INFO] [stdout]     |             --------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 210 |             label_four => update_car(machine, memory),
[INFO] [stdout]     |             ^^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/gc.rs:211:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |             label_one => reassign_root(machine, memory),
[INFO] [stdout]     |             --------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 211 |             label_five => update_cdr(machine, memory),
[INFO] [stdout]     |             ^^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/gc.rs:212:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |             label_one => reassign_root(machine, memory),
[INFO] [stdout]     |             --------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 212 |             _ => panic!("not a proper label!"),
[INFO] [stdout]     |             ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insts`
[INFO] [stdout]   --> src/assembler.rs:37:24
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn update_inst(insts: Exp, labels: Exp, machine: &mut BasicMachine) -> Exp {
[INFO] [stdout]    |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_insts`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `labels`
[INFO] [stdout]   --> src/assembler.rs:37:36
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn update_inst(insts: Exp, labels: Exp, machine: &mut BasicMachine) -> Exp {
[INFO] [stdout]    |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_labels`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `machine`
[INFO] [stdout]   --> src/assembler.rs:37:49
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn update_inst(insts: Exp, labels: Exp, machine: &mut BasicMachine) -> Exp {
[INFO] [stdout]    |                                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `labels`
[INFO] [stdout]   --> src/assembler.rs:72:21
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn lookup_label(labels: Exp, label_name: Exp) -> Exp {
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_labels`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_name`
[INFO] [stdout]   --> src/assembler.rs:72:34
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn lookup_label(labels: Exp, label_name: Exp) -> Exp {
[INFO] [stdout]    |                                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label`
[INFO] [stdout]   --> src/gc.rs:63:25
[INFO] [stdout]    |
[INFO] [stdout] 63 |                     let label = machine.get_register_contents("relocate_continue").unwrap();
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_label`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/gc.rs:81:17
[INFO] [stdout]    |
[INFO] [stdout] 81 |         let mut x = Object::Nil;
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label`
[INFO] [stdout]    --> src/gc.rs:135:25
[INFO] [stdout]     |
[INFO] [stdout] 135 |                     let label = machine.get_register_contents("relocate_continue").unwrap();
[INFO] [stdout]     |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_label`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/gc.rs:154:30
[INFO] [stdout]     |
[INFO] [stdout] 154 |                 Object::Pair(x) => true,
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_one`
[INFO] [stdout]    --> src/gc.rs:200:13
[INFO] [stdout]     |
[INFO] [stdout] 200 |         let label_one = Object::Symbol("reassign-root".to_string());
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_one`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_two`
[INFO] [stdout]    --> src/gc.rs:201:13
[INFO] [stdout]     |
[INFO] [stdout] 201 |         let label_two = Object::Symbol("gc-loop".to_string());
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_two`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_three`
[INFO] [stdout]    --> src/gc.rs:202:13
[INFO] [stdout]     |
[INFO] [stdout] 202 |         let label_three = Object::Symbol("gc_flip".to_string());
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_three`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_four`
[INFO] [stdout]    --> src/gc.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let label_four = Object::Symbol("update_car".to_string());
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_four`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_five`
[INFO] [stdout]    --> src/gc.rs:204:13
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let label_five = Object::Symbol("update_cdr".to_string());
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_five`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_one`
[INFO] [stdout]    --> src/gc.rs:207:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |             label_one => reassign_root(machine, memory),
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_one`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_two`
[INFO] [stdout]    --> src/gc.rs:208:13
[INFO] [stdout]     |
[INFO] [stdout] 208 |             label_two => gc_loop(machine, memory),
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_two`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_three`
[INFO] [stdout]    --> src/gc.rs:209:13
[INFO] [stdout]     |
[INFO] [stdout] 209 |             label_three => gc_flip(memory),
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_three`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_four`
[INFO] [stdout]    --> src/gc.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 210 |             label_four => update_car(machine, memory),
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_four`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label_five`
[INFO] [stdout]    --> src/gc.rs:211:13
[INFO] [stdout]     |
[INFO] [stdout] 211 |             label_five => update_cdr(machine, memory),
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_five`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `another_root`
[INFO] [stdout]    --> src/infrastructure.rs:257:13
[INFO] [stdout]     |
[INFO] [stdout] 257 |         let another_root = build_syntax_tree_into_memeory(&mut ttokens, &mut memory, &mut machine);
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/infrastructure.rs:259:13
[INFO] [stdout]     |
[INFO] [stdout] 259 |         let s = String::from("(( 7 8) 9)");
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/machine.rs:177:38
[INFO] [stdout]     |
[INFO] [stdout] 177 |         pub fn assign_car(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/machine.rs:177:55
[INFO] [stdout]     |
[INFO] [stdout] 177 |         pub fn assign_car(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                                       ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `memory`
[INFO] [stdout]    --> src/machine.rs:177:72
[INFO] [stdout]     |
[INFO] [stdout] 177 |         pub fn assign_car(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/machine.rs:181:38
[INFO] [stdout]     |
[INFO] [stdout] 181 |         pub fn assign_cdr(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/machine.rs:181:55
[INFO] [stdout]     |
[INFO] [stdout] 181 |         pub fn assign_cdr(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                                       ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `memory`
[INFO] [stdout]    --> src/machine.rs:181:72
[INFO] [stdout]     |
[INFO] [stdout] 181 |         pub fn assign_cdr(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/machine.rs:185:35
[INFO] [stdout]     |
[INFO] [stdout] 185 |         pub fn set_car(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/machine.rs:185:52
[INFO] [stdout]     |
[INFO] [stdout] 185 |         pub fn set_car(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                                    ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `memory`
[INFO] [stdout]    --> src/machine.rs:185:69
[INFO] [stdout]     |
[INFO] [stdout] 185 |         pub fn set_car(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/machine.rs:189:35
[INFO] [stdout]     |
[INFO] [stdout] 189 |         pub fn set_cdr(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/machine.rs:189:52
[INFO] [stdout]     |
[INFO] [stdout] 189 |         pub fn set_cdr(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                                    ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `memory`
[INFO] [stdout]    --> src/machine.rs:189:69
[INFO] [stdout]     |
[INFO] [stdout] 189 |         pub fn set_cdr(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stdout]     |                                                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/machine.rs:195:13
[INFO] [stdout]     |
[INFO] [stdout] 195 |             x: &'static str,
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/machine.rs:196:13
[INFO] [stdout]     |
[INFO] [stdout] 196 |             y: &'static str,
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]    --> src/machine.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |             z: &'static str,
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `memory`
[INFO] [stdout]    --> src/machine.rs:198:13
[INFO] [stdout]     |
[INFO] [stdout] 198 |             memory: &mut Memory,
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/memory.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |             for i in 0..size {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]    --> src/tpfordev.rs:108:37
[INFO] [stdout]     |
[INFO] [stdout] 108 |         if let Exp::List(Pair::Cons(lhs, rhs)) = x {
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/tpfordev.rs:117:42
[INFO] [stdout]     |
[INFO] [stdout] 117 |         if let Exp::List(Pair::Cons(lhs, rhs)) = x {
[INFO] [stdout]     |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let mut ss = s.replace("(", " ( ");
[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: function is never used: `garbage_collector`
[INFO] [stdout]  --> src/gc.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn garbage_collector(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `reassign_root`
[INFO] [stdout]   --> src/gc.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn reassign_root(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `relocate_old_result_in_new`
[INFO] [stdout]   --> src/gc.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn relocate_old_result_in_new(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `relocate_pair`
[INFO] [stdout]   --> src/gc.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn relocate_pair(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `assign_to_register_from_memory`
[INFO] [stdout]   --> src/gc.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn assign_to_register_from_memory(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `perform_memeory_set`
[INFO] [stdout]    --> src/gc.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn perform_memeory_set(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `give_a_location`
[INFO] [stdout]    --> src/gc.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn give_a_location(machine: &BasicMachine, name: &'static str) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `already_moved`
[INFO] [stdout]    --> src/gc.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn already_moved(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_pair`
[INFO] [stdout]    --> src/gc.rs:150:8
[INFO] [stdout]     |
[INFO] [stdout] 150 |     fn is_pair(old: &Object, memory: &Memory) -> bool {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `update_car`
[INFO] [stdout]    --> src/gc.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn update_car(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `update_cdr`
[INFO] [stdout]    --> src/gc.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout] 171 |     fn update_cdr(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gc_loop`
[INFO] [stdout]    --> src/gc.rs:178:8
[INFO] [stdout]     |
[INFO] [stdout] 178 |     fn gc_loop(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gc_flip`
[INFO] [stdout]    --> src/gc.rs:191:8
[INFO] [stdout]     |
[INFO] [stdout] 191 |     fn gc_flip(memory: &mut Memory) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `where_to_go`
[INFO] [stdout]    --> src/gc.rs:195:8
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn where_to_go(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `relocate_old_result_in_new_works`
[INFO] [stdout]    --> src/gc.rs:224:8
[INFO] [stdout]     |
[INFO] [stdout] 224 |     fn relocate_old_result_in_new_works() {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `car`
[INFO] [stdout]   --> src/infrastructure.rs:62:16
[INFO] [stdout]    |
[INFO] [stdout] 62 |         pub fn car(&self, memory: &Memory) -> Object {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cdr`
[INFO] [stdout]   --> src/infrastructure.rs:67:16
[INFO] [stdout]    |
[INFO] [stdout] 67 |         pub fn cdr(&self, memory: &Memory) -> Object {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stack`
[INFO] [stdout]   --> src/machine.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         stack: Stack,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `capacity`
[INFO] [stdout]   --> src/memory.rs:30:16
[INFO] [stdout]    |
[INFO] [stdout] 30 |         pub fn capacity(&self) -> usize {
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `flip`
[INFO] [stdout]   --> src/memory.rs:55:16
[INFO] [stdout]    |
[INFO] [stdout] 55 |         pub fn flip(&mut self) {
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_car`
[INFO] [stdout]   --> src/memory.rs:77:16
[INFO] [stdout]    |
[INFO] [stdout] 77 |         pub fn new_car(&self, i: usize) -> Object {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_cdr`
[INFO] [stdout]   --> src/memory.rs:83:16
[INFO] [stdout]    |
[INFO] [stdout] 83 |         pub fn new_cdr(&self, i: usize) -> Object {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `build_syntax_tree_into_memeory_works`
[INFO] [stdout]   --> src/main.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn build_syntax_tree_into_memeory_works() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_register_contents_as_in_memory_works`
[INFO] [stdout]   --> src/main.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn set_register_contents_as_in_memory_works() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `str_to_exp_works`
[INFO] [stdout]   --> src/main.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn str_to_exp_works() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `BROKEN_HEART` should have a snake case name
[INFO] [stdout]   --> src/gc.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let BROKEN_HEART = Object::Symbol("broken_heart".to_string());
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: convert the identifier to snake case: `broken_heart`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 80 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "191e8d603f9cf9f94826853e0a24e9da20a10f14e3f4225065d7cb71e796b762", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "191e8d603f9cf9f94826853e0a24e9da20a10f14e3f4225065d7cb71e796b762", kill_on_drop: false }`
[INFO] [stdout] 191e8d603f9cf9f94826853e0a24e9da20a10f14e3f4225065d7cb71e796b762
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 92ab078b5e81cf52a40b8f00bfc8801285c7ee162d5a1dda9a3d0aeaa177639a
[INFO] running `Command { std: "docker" "start" "-a" "92ab078b5e81cf52a40b8f00bfc8801285c7ee162d5a1dda9a3d0aeaa177639a", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::scheme_list`
[INFO] [stderr]  --> src/assembler.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     use crate::scheme_list;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `append`, `set_car`
[INFO] [stderr]  --> src/assembler.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |         append, car, cdr, scheme_cons, set_car, set_cdr, Exp, Pair,
[INFO] [stderr]   |         ^^^^^^                         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::infrastructure::register::Register`
[INFO] [stderr]  --> src/gc.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 |     use crate::infrastructure::register::Register;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::garbage_collector`
[INFO] [stderr]    --> src/gc.rs:219:9
[INFO] [stderr]     |
[INFO] [stderr] 219 |     use super::garbage_collector;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type `machine_case` should have an upper camel case name
[INFO] [stderr]  --> src/machine_cases.rs:2:16
[INFO] [stderr]   |
[INFO] [stderr] 2 |     pub struct machine_case {
[INFO] [stderr]   |                ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `MachineCase`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `write`
[INFO] [stderr]  --> src/memory.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 |         fmt::{self, write},
[INFO] [stderr]   |                     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `gc::garbage_collector::garbage_collector`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use gc::garbage_collector::garbage_collector;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `register`, `stack::Stack`
[INFO] [stderr]   --> src/main.rs:18:22
[INFO] [stderr]    |
[INFO] [stderr] 18 | use infrastructure::{register, stack::Stack};
[INFO] [stderr]    |                      ^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/gc.rs:208:13
[INFO] [stderr]     |
[INFO] [stderr] 207 |             label_one => reassign_root(machine, memory),
[INFO] [stderr]     |             --------- matches any value
[INFO] [stderr] 208 |             label_two => gc_loop(machine, memory),
[INFO] [stderr]     |             ^^^^^^^^^ unreachable pattern
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/gc.rs:209:13
[INFO] [stderr]     |
[INFO] [stderr] 207 |             label_one => reassign_root(machine, memory),
[INFO] [stderr]     |             --------- matches any value
[INFO] [stderr] 208 |             label_two => gc_loop(machine, memory),
[INFO] [stderr] 209 |             label_three => gc_flip(memory),
[INFO] [stderr]     |             ^^^^^^^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/gc.rs:210:13
[INFO] [stderr]     |
[INFO] [stderr] 207 |             label_one => reassign_root(machine, memory),
[INFO] [stderr]     |             --------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 210 |             label_four => update_car(machine, memory),
[INFO] [stderr]     |             ^^^^^^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/gc.rs:211:13
[INFO] [stderr]     |
[INFO] [stderr] 207 |             label_one => reassign_root(machine, memory),
[INFO] [stderr]     |             --------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 211 |             label_five => update_cdr(machine, memory),
[INFO] [stderr]     |             ^^^^^^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/gc.rs:212:13
[INFO] [stderr]     |
[INFO] [stderr] 207 |             label_one => reassign_root(machine, memory),
[INFO] [stderr]     |             --------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 212 |             _ => panic!("not a proper label!"),
[INFO] [stderr]     |             ^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insts`
[INFO] [stderr]   --> src/assembler.rs:37:24
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn update_inst(insts: Exp, labels: Exp, machine: &mut BasicMachine) -> Exp {
[INFO] [stderr]    |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_insts`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `labels`
[INFO] [stderr]   --> src/assembler.rs:37:36
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn update_inst(insts: Exp, labels: Exp, machine: &mut BasicMachine) -> Exp {
[INFO] [stderr]    |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_labels`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `machine`
[INFO] [stderr]   --> src/assembler.rs:37:49
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn update_inst(insts: Exp, labels: Exp, machine: &mut BasicMachine) -> Exp {
[INFO] [stderr]    |                                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_machine`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `labels`
[INFO] [stderr]   --> src/assembler.rs:72:21
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn lookup_label(labels: Exp, label_name: Exp) -> Exp {
[INFO] [stderr]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_labels`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `label_name`
[INFO] [stderr]   --> src/assembler.rs:72:34
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn lookup_label(labels: Exp, label_name: Exp) -> Exp {
[INFO] [stderr]    |                                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `label`
[INFO] [stderr]   --> src/gc.rs:63:25
[INFO] [stderr]    |
[INFO] [stderr] 63 |                     let label = machine.get_register_contents("relocate_continue").unwrap();
[INFO] [stderr]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_label`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `x` is never read
[INFO] [stderr]   --> src/gc.rs:81:17
[INFO] [stderr]    |
[INFO] [stderr] 81 |         let mut x = Object::Nil;
[INFO] [stderr]    |                 ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `label`
[INFO] [stderr]    --> src/gc.rs:135:25
[INFO] [stderr]     |
[INFO] [stderr] 135 |                     let label = machine.get_register_contents("relocate_continue").unwrap();
[INFO] [stderr]     |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_label`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/gc.rs:154:30
[INFO] [stderr]     |
[INFO] [stderr] 154 |                 Object::Pair(x) => true,
[INFO] [stderr]     |                              ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `label_one`
[INFO] [stderr]    --> src/gc.rs:200:13
[INFO] [stderr]     |
[INFO] [stderr] 200 |         let label_one = Object::Symbol("reassign-root".to_string());
[INFO] [stderr]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_one`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `label_two`
[INFO] [stderr]    --> src/gc.rs:201:13
[INFO] [stderr]     |
[INFO] [stderr] 201 |         let label_two = Object::Symbol("gc-loop".to_string());
[INFO] [stderr]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_two`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `label_three`
[INFO] [stderr]    --> src/gc.rs:202:13
[INFO] [stderr]     |
[INFO] [stderr] 202 |         let label_three = Object::Symbol("gc_flip".to_string());
[INFO] [stderr]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_three`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `label_four`
[INFO] [stderr]    --> src/gc.rs:203:13
[INFO] [stderr]     |
[INFO] [stderr] 203 |         let label_four = Object::Symbol("update_car".to_string());
[INFO] [stderr]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_four`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `label_five`
[INFO] [stderr]    --> src/gc.rs:204:13
[INFO] [stderr]     |
[INFO] [stderr] 204 |         let label_five = Object::Symbol("update_cdr".to_string());
[INFO] [stderr]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_five`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `label_one`
[INFO] [stderr]    --> src/gc.rs:207:13
[INFO] [stderr]     |
[INFO] [stderr] 207 |             label_one => reassign_root(machine, memory),
[INFO] [stderr]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_one`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `label_two`
[INFO] [stderr]    --> src/gc.rs:208:13
[INFO] [stderr]     |
[INFO] [stderr] 208 |             label_two => gc_loop(machine, memory),
[INFO] [stderr]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_two`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `label_three`
[INFO] [stderr]    --> src/gc.rs:209:13
[INFO] [stderr]     |
[INFO] [stderr] 209 |             label_three => gc_flip(memory),
[INFO] [stderr]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_three`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `label_four`
[INFO] [stderr]    --> src/gc.rs:210:13
[INFO] [stderr]     |
[INFO] [stderr] 210 |             label_four => update_car(machine, memory),
[INFO] [stderr]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_four`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `label_five`
[INFO] [stderr]    --> src/gc.rs:211:13
[INFO] [stderr]     |
[INFO] [stderr] 211 |             label_five => update_cdr(machine, memory),
[INFO] [stderr]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_label_five`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `another_root`
[INFO] [stderr]    --> src/infrastructure.rs:257:13
[INFO] [stderr]     |
[INFO] [stderr] 257 |         let another_root = build_syntax_tree_into_memeory(&mut ttokens, &mut memory, &mut machine);
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another_root`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> src/infrastructure.rs:259:13
[INFO] [stderr]     |
[INFO] [stderr] 259 |         let s = String::from("(( 7 8) 9)");
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/machine.rs:177:38
[INFO] [stderr]     |
[INFO] [stderr] 177 |         pub fn assign_car(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stderr]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/machine.rs:177:55
[INFO] [stderr]     |
[INFO] [stderr] 177 |         pub fn assign_car(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stderr]     |                                                       ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `memory`
[INFO] [stderr]    --> src/machine.rs:177:72
[INFO] [stderr]     |
[INFO] [stderr] 177 |         pub fn assign_car(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stderr]     |                                                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/machine.rs:181:38
[INFO] [stderr]     |
[INFO] [stderr] 181 |         pub fn assign_cdr(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stderr]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/machine.rs:181:55
[INFO] [stderr]     |
[INFO] [stderr] 181 |         pub fn assign_cdr(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stderr]     |                                                       ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `memory`
[INFO] [stderr]    --> src/machine.rs:181:72
[INFO] [stderr]     |
[INFO] [stderr] 181 |         pub fn assign_cdr(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stderr]     |                                                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/machine.rs:185:35
[INFO] [stderr]     |
[INFO] [stderr] 185 |         pub fn set_car(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stderr]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/machine.rs:185:52
[INFO] [stderr]     |
[INFO] [stderr] 185 |         pub fn set_car(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stderr]     |                                                    ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `memory`
[INFO] [stderr]    --> src/machine.rs:185:69
[INFO] [stderr]     |
[INFO] [stderr] 185 |         pub fn set_car(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stderr]     |                                                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/machine.rs:189:35
[INFO] [stderr]     |
[INFO] [stderr] 189 |         pub fn set_cdr(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stderr]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/machine.rs:189:52
[INFO] [stderr]     |
[INFO] [stderr] 189 |         pub fn set_cdr(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stderr]     |                                                    ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `memory`
[INFO] [stderr]    --> src/machine.rs:189:69
[INFO] [stderr]     |
[INFO] [stderr] 189 |         pub fn set_cdr(&mut self, x: &'static str, y: &'static str, memory: &mut Memory) {}
[INFO] [stderr]     |                                                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/machine.rs:195:13
[INFO] [stderr]     |
[INFO] [stderr] 195 |             x: &'static str,
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/machine.rs:196:13
[INFO] [stderr]     |
[INFO] [stderr] 196 |             y: &'static str,
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `z`
[INFO] [stderr]    --> src/machine.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |             z: &'static str,
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `memory`
[INFO] [stderr]    --> src/machine.rs:198:13
[INFO] [stderr]     |
[INFO] [stderr] 198 |             memory: &mut Memory,
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/memory.rs:18:17
[INFO] [stderr]    |
[INFO] [stderr] 18 |             for i in 0..size {
[INFO] [stderr]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lhs`
[INFO] [stderr]    --> src/tpfordev.rs:108:37
[INFO] [stderr]     |
[INFO] [stderr] 108 |         if let Exp::List(Pair::Cons(lhs, rhs)) = x {
[INFO] [stderr]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rhs`
[INFO] [stderr]    --> src/tpfordev.rs:117:42
[INFO] [stderr]     |
[INFO] [stderr] 117 |         if let Exp::List(Pair::Cons(lhs, rhs)) = x {
[INFO] [stderr]     |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/parser.rs:45:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |         let mut ss = s.replace("(", " ( ");
[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: function is never used: `garbage_collector`
[INFO] [stderr]  --> src/gc.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn garbage_collector(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `reassign_root`
[INFO] [stderr]   --> src/gc.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn reassign_root(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `relocate_old_result_in_new`
[INFO] [stderr]   --> src/gc.rs:26:8
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn relocate_old_result_in_new(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `relocate_pair`
[INFO] [stderr]   --> src/gc.rs:36:8
[INFO] [stderr]    |
[INFO] [stderr] 36 |     fn relocate_pair(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `assign_to_register_from_memory`
[INFO] [stderr]   --> src/gc.rs:73:8
[INFO] [stderr]    |
[INFO] [stderr] 73 |     fn assign_to_register_from_memory(
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `perform_memeory_set`
[INFO] [stderr]    --> src/gc.rs:106:8
[INFO] [stderr]     |
[INFO] [stderr] 106 |     fn perform_memeory_set(
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `give_a_location`
[INFO] [stderr]    --> src/gc.rs:117:8
[INFO] [stderr]     |
[INFO] [stderr] 117 |     fn give_a_location(machine: &BasicMachine, name: &'static str) -> usize {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `already_moved`
[INFO] [stderr]    --> src/gc.rs:127:8
[INFO] [stderr]     |
[INFO] [stderr] 127 |     fn already_moved(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_pair`
[INFO] [stderr]    --> src/gc.rs:150:8
[INFO] [stderr]     |
[INFO] [stderr] 150 |     fn is_pair(old: &Object, memory: &Memory) -> bool {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `update_car`
[INFO] [stderr]    --> src/gc.rs:162:8
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn update_car(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `update_cdr`
[INFO] [stderr]    --> src/gc.rs:171:8
[INFO] [stderr]     |
[INFO] [stderr] 171 |     fn update_cdr(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gc_loop`
[INFO] [stderr]    --> src/gc.rs:178:8
[INFO] [stderr]     |
[INFO] [stderr] 178 |     fn gc_loop(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gc_flip`
[INFO] [stderr]    --> src/gc.rs:191:8
[INFO] [stderr]     |
[INFO] [stderr] 191 |     fn gc_flip(memory: &mut Memory) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `where_to_go`
[INFO] [stderr]    --> src/gc.rs:195:8
[INFO] [stderr]     |
[INFO] [stderr] 195 |     fn where_to_go(machine: &mut BasicMachine, memory: &mut Memory) {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `relocate_old_result_in_new_works`
[INFO] [stderr]    --> src/gc.rs:224:8
[INFO] [stderr]     |
[INFO] [stderr] 224 |     fn relocate_old_result_in_new_works() {}
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `car`
[INFO] [stderr]   --> src/infrastructure.rs:62:16
[INFO] [stderr]    |
[INFO] [stderr] 62 |         pub fn car(&self, memory: &Memory) -> Object {
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `cdr`
[INFO] [stderr]   --> src/infrastructure.rs:67:16
[INFO] [stderr]    |
[INFO] [stderr] 67 |         pub fn cdr(&self, memory: &Memory) -> Object {
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `stack`
[INFO] [stderr]   --> src/machine.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |         stack: Stack,
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `capacity`
[INFO] [stderr]   --> src/memory.rs:30:16
[INFO] [stderr]    |
[INFO] [stderr] 30 |         pub fn capacity(&self) -> usize {
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `flip`
[INFO] [stderr]   --> src/memory.rs:55:16
[INFO] [stderr]    |
[INFO] [stderr] 55 |         pub fn flip(&mut self) {
[INFO] [stderr]    |                ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_car`
[INFO] [stderr]   --> src/memory.rs:77:16
[INFO] [stderr]    |
[INFO] [stderr] 77 |         pub fn new_car(&self, i: usize) -> Object {
[INFO] [stderr]    |                ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_cdr`
[INFO] [stderr]   --> src/memory.rs:83:16
[INFO] [stderr]    |
[INFO] [stderr] 83 |         pub fn new_cdr(&self, i: usize) -> Object {
[INFO] [stderr]    |                ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `build_syntax_tree_into_memeory_works`
[INFO] [stderr]   --> src/main.rs:37:4
[INFO] [stderr]    |
[INFO] [stderr] 37 | fn build_syntax_tree_into_memeory_works() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `set_register_contents_as_in_memory_works`
[INFO] [stderr]   --> src/main.rs:53:4
[INFO] [stderr]    |
[INFO] [stderr] 53 | fn set_register_contents_as_in_memory_works() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `str_to_exp_works`
[INFO] [stderr]   --> src/main.rs:65:4
[INFO] [stderr]    |
[INFO] [stderr] 65 | fn str_to_exp_works() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `BROKEN_HEART` should have a snake case name
[INFO] [stderr]   --> src/gc.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let BROKEN_HEART = Object::Symbol("broken_heart".to_string());
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: convert the identifier to snake case: `broken_heart`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 80 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/machine-0e29c276425c3161)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test gc::test::is_pair_works ... ok
[INFO] [stdout] test infrastructure::test::stack_push_pop ... ok
[INFO] [stdout] test infrastructure::test::register_set_works ... ok
[INFO] [stdout] test parser::test::read_scheme_string_works ... ok
[INFO] [stdout] test tpfordev::test::scheme_map_works ... ok
[INFO] [stdout] test machine::test::set_register_contents_as_in_memory_works ... ok
[INFO] [stdout] test parserfordev::test::str_to_exp_works ... ok
[INFO] [stdout] test tpfordev::test::car_works ... ok
[INFO] [stdout] test tpfordev::test::cdr_works ... ok
[INFO] [stdout] test parser::test::tokenizer_works ... ok
[INFO] [stdout] test infrastructure::test::get_list_from_memory_as_str_works ... ok
[INFO] [stdout] test parser::test::read_scheme_quote_works ... ok
[INFO] [stdout] test infrastructure::test::register_get_works ... ok
[INFO] [stdout] test parser::test::is_end_with_double_quote_works ... ok
[INFO] [stdout] test parser::test::build_syntax_tree_into_memeory_works ... ok
[INFO] [stdout] test parserfordev::test::exp_to_str_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "92ab078b5e81cf52a40b8f00bfc8801285c7ee162d5a1dda9a3d0aeaa177639a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92ab078b5e81cf52a40b8f00bfc8801285c7ee162d5a1dda9a3d0aeaa177639a", kill_on_drop: false }`
[INFO] [stdout] 92ab078b5e81cf52a40b8f00bfc8801285c7ee162d5a1dda9a3d0aeaa177639a