[INFO] cloning repository https://github.com/Benjamonmytoast/learn_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Benjamonmytoast/learn_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenjamonmytoast%2Flearn_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenjamonmytoast%2Flearn_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bc1c53bd267530b1168ee1f8da65f697e008c53e
[INFO] testing Benjamonmytoast/learn_rust against master#1ef7943ee607160a564655b6596f83670ef95df5 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenjamonmytoast%2Flearn_rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Benjamonmytoast/learn_rust
[INFO] finished tweaking git repo https://github.com/Benjamonmytoast/learn_rust
[INFO] tweaked toml for git repo https://github.com/Benjamonmytoast/learn_rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Benjamonmytoast/learn_rust on toolchain 1ef7943ee607160a564655b6596f83670ef95df5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Benjamonmytoast/learn_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memoize v0.4.2
[INFO] [stderr]   Downloaded memoize-inner v0.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66c57bd45e219460e5ae436b99b5578e2ff386ffdf1dc2f3a1916c2a4f753df0
[INFO] running `Command { std: "docker" "start" "-a" "66c57bd45e219460e5ae436b99b5578e2ff386ffdf1dc2f3a1916c2a4f753df0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66c57bd45e219460e5ae436b99b5578e2ff386ffdf1dc2f3a1916c2a4f753df0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66c57bd45e219460e5ae436b99b5578e2ff386ffdf1dc2f3a1916c2a4f753df0", kill_on_drop: false }`
[INFO] [stdout] 66c57bd45e219460e5ae436b99b5578e2ff386ffdf1dc2f3a1916c2a4f753df0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57bed251e291e6559c35e4d94b2f2125f9a855d299e93cb4cfe9101eb7d4f3b0
[INFO] running `Command { std: "docker" "start" "-a" "57bed251e291e6559c35e4d94b2f2125f9a855d299e93cb4cfe9101eb7d4f3b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling lru v0.7.8
[INFO] [stderr]    Compiling memoize-inner v0.4.3
[INFO] [stderr]    Compiling memoize v0.4.2
[INFO] [stderr]    Compiling untitled v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `floor`
[INFO] [stdout]   --> src/elevator_events.rs:46:30
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn lobby_call_button_pressed(floor: Floor, dir: Direction) -> Event {
[INFO] [stdout]    |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_floor`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dir`
[INFO] [stdout]   --> src/elevator_events.rs:46:44
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn lobby_call_button_pressed(floor: Floor, dir: Direction) -> Event {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_dir`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `original_collatz_length` is never used
[INFO] [stdout]   --> src/main.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn original_collatz_length(n:u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/elevator_events.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 |     CarArrived(Floor),
[INFO] [stdout]   |     ---------- ^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 -     CarArrived(Floor),
[INFO] [stdout] 5 +     CarArrived(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/elevator_events.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 |     ButtonPressed(Button),
[INFO] [stdout]   |     ------------- ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 6 -     ButtonPressed(Button),
[INFO] [stdout] 6 +     ButtonPressed(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/elevator_events.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |     CarDoor(Door)
[INFO] [stdout]   |     ------- ^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 7 -     CarDoor(Door)
[INFO] [stdout] 7 +     CarDoor(())
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/elevator_events.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Floor(Floor)
[INFO] [stdout]    |     ----- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Button` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 -     Floor(Floor)
[INFO] [stdout] 13 +     Floor(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Down` is never constructed
[INFO] [stdout]   --> src/elevator_events.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | enum Direction {
[INFO] [stdout]    |      --------- variant in this enum
[INFO] [stdout] 26 |     Up,
[INFO] [stdout] 27 |     Down,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Direction` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Operation` is never used
[INFO] [stdout]  --> src/expression_eval.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum Operation {
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expression` is never used
[INFO] [stdout]   --> src/expression_eval.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | enum Expression {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `eval` is never used
[INFO] [stdout]   --> src/expression_eval.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn eval(e: Expression) -> Result<i64, String> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.84s
[INFO] running `Command { std: "docker" "inspect" "57bed251e291e6559c35e4d94b2f2125f9a855d299e93cb4cfe9101eb7d4f3b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57bed251e291e6559c35e4d94b2f2125f9a855d299e93cb4cfe9101eb7d4f3b0", kill_on_drop: false }`
[INFO] [stdout] 57bed251e291e6559c35e4d94b2f2125f9a855d299e93cb4cfe9101eb7d4f3b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 489b8d95320652d9ab73a37242467de64df359495ef0bbf52f4c0ce593084e1e
[INFO] running `Command { std: "docker" "start" "-a" "489b8d95320652d9ab73a37242467de64df359495ef0bbf52f4c0ce593084e1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling untitled v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `floor`
[INFO] [stdout]   --> src/elevator_events.rs:46:30
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn lobby_call_button_pressed(floor: Floor, dir: Direction) -> Event {
[INFO] [stdout]    |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_floor`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dir`
[INFO] [stdout]   --> src/elevator_events.rs:46:44
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn lobby_call_button_pressed(floor: Floor, dir: Direction) -> Event {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_dir`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `original_collatz_length` is never used
[INFO] [stdout]   --> src/main.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn original_collatz_length(n:u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/elevator_events.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 |     CarArrived(Floor),
[INFO] [stdout]   |     ---------- ^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 -     CarArrived(Floor),
[INFO] [stdout] 5 +     CarArrived(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/elevator_events.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 |     ButtonPressed(Button),
[INFO] [stdout]   |     ------------- ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 6 -     ButtonPressed(Button),
[INFO] [stdout] 6 +     ButtonPressed(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/elevator_events.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |     CarDoor(Door)
[INFO] [stdout]   |     ------- ^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 7 -     CarDoor(Door)
[INFO] [stdout] 7 +     CarDoor(())
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/elevator_events.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Floor(Floor)
[INFO] [stdout]    |     ----- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Button` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 -     Floor(Floor)
[INFO] [stdout] 13 +     Floor(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Down` is never constructed
[INFO] [stdout]   --> src/elevator_events.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | enum Direction {
[INFO] [stdout]    |      --------- variant in this enum
[INFO] [stdout] 26 |     Up,
[INFO] [stdout] 27 |     Down,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Direction` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "489b8d95320652d9ab73a37242467de64df359495ef0bbf52f4c0ce593084e1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "489b8d95320652d9ab73a37242467de64df359495ef0bbf52f4c0ce593084e1e", kill_on_drop: false }`
[INFO] [stdout] 489b8d95320652d9ab73a37242467de64df359495ef0bbf52f4c0ce593084e1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d58898234f0f074ca63e0be50b0bbc067b58d6e88c37f7dd719763f230184e46
[INFO] running `Command { std: "docker" "start" "-a" "d58898234f0f074ca63e0be50b0bbc067b58d6e88c37f7dd719763f230184e46", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `floor`
[INFO] [stderr]   --> src/elevator_events.rs:46:30
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn lobby_call_button_pressed(floor: Floor, dir: Direction) -> Event {
[INFO] [stderr]    |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_floor`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dir`
[INFO] [stderr]   --> src/elevator_events.rs:46:44
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn lobby_call_button_pressed(floor: Floor, dir: Direction) -> Event {
[INFO] [stderr]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_dir`
[INFO] [stderr] 
[INFO] [stderr] warning: function `original_collatz_length` is never used
[INFO] [stderr]   --> src/main.rs:53:4
[INFO] [stderr]    |
[INFO] [stderr] 53 | fn original_collatz_length(n:u32) -> u32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]  --> src/elevator_events.rs:5:16
[INFO] [stderr]   |
[INFO] [stderr] 5 |     CarArrived(Floor),
[INFO] [stderr]   |     ---------- ^^^^^
[INFO] [stderr]   |     |
[INFO] [stderr]   |     field in this variant
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]   |
[INFO] [stderr] 5 -     CarArrived(Floor),
[INFO] [stderr] 5 +     CarArrived(()),
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]  --> src/elevator_events.rs:6:19
[INFO] [stderr]   |
[INFO] [stderr] 6 |     ButtonPressed(Button),
[INFO] [stderr]   |     ------------- ^^^^^^
[INFO] [stderr]   |     |
[INFO] [stderr]   |     field in this variant
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]   |
[INFO] [stderr] 6 -     ButtonPressed(Button),
[INFO] [stderr] 6 +     ButtonPressed(()),
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]  --> src/elevator_events.rs:7:13
[INFO] [stderr]   |
[INFO] [stderr] 7 |     CarDoor(Door)
[INFO] [stderr]   |     ------- ^^^^
[INFO] [stderr]   |     |
[INFO] [stderr]   |     field in this variant
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]   |
[INFO] [stderr] 7 -     CarDoor(Door)
[INFO] [stderr] 7 +     CarDoor(())
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/elevator_events.rs:13:11
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Floor(Floor)
[INFO] [stderr]    |     ----- ^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Button` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 13 -     Floor(Floor)
[INFO] [stderr] 13 +     Floor(())
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Down` is never constructed
[INFO] [stderr]   --> src/elevator_events.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | enum Direction {
[INFO] [stderr]    |      --------- variant in this enum
[INFO] [stderr] 26 |     Up,
[INFO] [stderr] 27 |     Down,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Direction` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `untitled` (bin "untitled" test) generated 8 warnings (run `cargo fix --bin "untitled" -p untitled --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/untitled-9103e7d955cdf523)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test expression_eval::test_recursion ... ok
[INFO] [stdout] test expression_eval::test_sum ... ok
[INFO] [stdout] test expression_eval::test_value ... ok
[INFO] [stdout] test expression_eval::test_error ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- expression_eval::test_error stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'expression_eval::test_error' (25) panicked at src/expression_eval.rs:87:5:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: Err("Division by zero.")
[INFO] [stdout]  right: Err("division by zero")
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x60e931cda182 - std::backtrace_rs::backtrace::libunwind::trace::h786de35fecf3582f
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x60e931cda182 - std::backtrace_rs::backtrace::trace_unsynchronized::h4a7da1a2a64387f1
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x60e931cda182 - std::sys::backtrace::_print_fmt::h6bd7d500070c788c
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x60e931cda182 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h6d82c1afff976903
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x60e931ce9fdf - core::fmt::rt::Argument::fmt::hc4ce6d643d397690
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x60e931ce9fdf - core::fmt::write::hb1e7ca88b6a3936e
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x60e931ca7b23 - std::io::default_write_fmt::haffd49d96f1984a8
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x60e931ca7b23 - std::io::Write::write_fmt::h027871c57cf57c01
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x60e931cb39f2 - std::sys::backtrace::BacktraceLock::print::ha2430613ee79d059
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x60e931cb84cf - std::panicking::default_hook::{{closure}}::hdbd2db9e5c303cf6
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x60e931cb8361 - std::panicking::default_hook::hed93c70cba5fdcf0
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x60e931c7b52e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd0ee8b569efc6a07
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   12:     0x60e931c7b52e - test::test_main_with_exit_callback::{{closure}}::hf10864b576ecd15d
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x60e931cb8adf - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h3a55ca34534c0d00
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   14:     0x60e931cb8adf - std::panicking::panic_with_hook::h3862d766c2cec19b
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x60e931cb893a - std::panicking::panic_handler::{{closure}}::hb95eb402b5e28ee1
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x60e931cb3b29 - std::sys::backtrace::__rust_end_short_backtrace::hf73a26dc1835d85a
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x60e931c9c41d - __rustc[6ed5915ee467787]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x60e931cf18b0 - core::panicking::panic_fmt::h3454303eb8e6f7cd
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x60e931cf16b3 - core::panicking::assert_failed_inner::hdcc703ae7c807131
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panicking.rs:444:17
[INFO] [stdout]   20:     0x60e931c58b37 - core::panicking::assert_failed::hbbb501ffee442b36
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panicking.rs:399:5
[INFO] [stdout]   21:     0x60e931c59b6c - untitled::expression_eval::test_error::hc28abefddc6f6f72
[INFO] [stdout]                                at /opt/rustwide/workdir/src/expression_eval.rs:87:5
[INFO] [stdout]   22:     0x60e931c59bc7 - untitled::expression_eval::test_error::{{closure}}::haf38aa4f76927b0e
[INFO] [stdout]                                at /opt/rustwide/workdir/src/expression_eval.rs:86:16
[INFO] [stdout]   23:     0x60e931c57e86 - core::ops::function::FnOnce::call_once::h9fe18b70aebdd3d0
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x60e931c7b30b - core::ops::function::FnOnce::call_once::ha729ee35d2fab541
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x60e931c7b30b - test::__rust_begin_short_backtrace::ha40f4db8207e1111
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x60e931c8f38d - test::run_test_in_process::{{closure}}::hc1b77cda5d44f0f3
[INFO] [stderr] error: test failed, to rerun pass `--bin untitled`
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x60e931c8f38d - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h1dbea1de64785521
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x60e931c8f38d - std::panicking::catch_unwind::do_call::hd5febe9affd5a1b3
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x60e931c8f38d - std::panicking::catch_unwind::h51ea89627559b6f4
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x60e931c8f38d - std::panic::catch_unwind::hb8b8c2367cae3d66
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x60e931c8f38d - test::run_test_in_process::ha5b55801407ea100
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x60e931c8f38d - test::run_test::{{closure}}::h0b9d4072b527abf5
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x60e931c688a4 - test::run_test::{{closure}}::hb1056b5731205822
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x60e931c688a4 - std::sys::backtrace::__rust_begin_short_backtrace::hb61ff5a34023c7ef
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x60e931c6c1da - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hb0a83c0e8b353cff
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/thread/mod.rs:562:17
[INFO] [stdout]   36:     0x60e931c6c1da - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb4f32cb008535298
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x60e931c6c1da - std::panicking::catch_unwind::do_call::h16d110e4fc35789a
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x60e931c6c1da - std::panicking::catch_unwind::hea9118f355699c4b
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x60e931c6c1da - std::panic::catch_unwind::hf4b3c2a06d3f42f5
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x60e931c6c1da - std::thread::Builder::spawn_unchecked_::{{closure}}::h3f4cb733a52d53d5
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/thread/mod.rs:560:30
[INFO] [stdout]   41:     0x60e931c6c1da - core::ops::function::FnOnce::call_once{{vtable.shim}}::h4052f0967b37caeb
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x60e931caef2f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7ec433abd3f148b4
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/alloc/src/boxed.rs:2085:9
[INFO] [stdout]   43:     0x60e931caef2f - std::sys::thread::unix::Thread::new::thread_start::he514622d3d7ba65c
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/thread/unix.rs:124:17
[INFO] [stdout]   44:     0x7626dc04caa4 - <unknown>
[INFO] [stdout]   45:     0x7626dc0d9a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     expression_eval::test_error
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d58898234f0f074ca63e0be50b0bbc067b58d6e88c37f7dd719763f230184e46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d58898234f0f074ca63e0be50b0bbc067b58d6e88c37f7dd719763f230184e46", kill_on_drop: false }`
[INFO] [stdout] d58898234f0f074ca63e0be50b0bbc067b58d6e88c37f7dd719763f230184e46
