[INFO] cloning repository https://github.com/ur-fault/graphs-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ur-fault/graphs-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fur-fault%2Fgraphs-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fur-fault%2Fgraphs-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 39048b84df7f59491f13b207ade96cc2f08a2568
[INFO] checking ur-fault/graphs-rs against try#173780a87744406b7489b28349c0176f14bb3881 for pr-135841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fur-fault%2Fgraphs-rs" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ur-fault/graphs-rs on toolchain 173780a87744406b7489b28349c0176f14bb3881
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+173780a87744406b7489b28349c0176f14bb3881" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ur-fault/graphs-rs
[INFO] finished tweaking git repo https://github.com/ur-fault/graphs-rs
[INFO] tweaked toml for git repo https://github.com/ur-fault/graphs-rs written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ur-fault/graphs-rs 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" "+173780a87744406b7489b28349c0176f14bb3881" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+173780a87744406b7489b28349c0176f14bb3881" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 652f46c4333801e085f07a9ea773a64edbf1c627a5c0373e34ff9fe62f18d15e
[INFO] running `Command { std: "docker" "start" "-a" "652f46c4333801e085f07a9ea773a64edbf1c627a5c0373e34ff9fe62f18d15e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "652f46c4333801e085f07a9ea773a64edbf1c627a5c0373e34ff9fe62f18d15e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "652f46c4333801e085f07a9ea773a64edbf1c627a5c0373e34ff9fe62f18d15e", kill_on_drop: false }`
[INFO] [stdout] 652f46c4333801e085f07a9ea773a64edbf1c627a5c0373e34ff9fe62f18d15e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+173780a87744406b7489b28349c0176f14bb3881" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9eb8763facd7d29b8a2ae4065504b26c162f9a879e2fbbf7fd1475ae3bb28321
[INFO] running `Command { std: "docker" "start" "-a" "9eb8763facd7d29b8a2ae4065504b26c162f9a879e2fbbf7fd1475ae3bb28321", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking itertools v0.12.0
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking graphs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition: `create_cycle`
[INFO] [stdout]   --> src/cycle.rs:58:14
[INFO] [stdout]    |
[INFO] [stdout] 58 | macro_rules! create_cycle {
[INFO] [stdout]    |              ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `create_cycle`
[INFO] [stdout]   --> src/cycle.rs:64:16
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub(crate) use create_cycle;
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `create_cycle`
[INFO] [stdout]   --> src/cycle.rs:58:14
[INFO] [stdout]    |
[INFO] [stdout] 58 | macro_rules! create_cycle {
[INFO] [stdout]    |              ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `create_cycle`
[INFO] [stdout]   --> src/cycle.rs:64:16
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub(crate) use create_cycle;
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/cycle.rs:52:18
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 .intersperse(" => ".to_string())
[INFO] [stdout]    |                  ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse`
[INFO] [stdout]   --> src/main.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  + #![feature(iter_intersperse)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/cycle.rs:52:18
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 .intersperse(" => ".to_string())
[INFO] [stdout]    |                  ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse`
[INFO] [stdout]   --> src/main.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  + #![feature(iter_intersperse)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/parsing.rs:79:15
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn expression(input: &str) -> IResult<&str, Expression> {
[INFO] [stdout]    |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/graph.rs:18:8
[INFO] [stdout]     |
[INFO] [stdout] 13  | impl Graph {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 18  |     fn with_node(&mut self, id: u32) -> &mut BTreeSet<u32> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22  |     pub fn connect(&mut self, from: u32, to: u32) -> bool {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34  |     pub fn disconnect(&mut self, from: u32, to: u32) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41  |     pub fn subgraph(&self, nodes: &[u32]) -> Self {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59  |     pub fn cleanup(&mut self) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74  |     pub fn to(&self, to: u32) -> impl Iterator<Item = u32> + '_ {
[INFO] [stdout]     |            ^^
[INFO] [stdout] ...
[INFO] [stdout] 84  |     pub fn from(&self, id: u32) -> Option<&BTreeSet<u32>> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 88  |     pub fn find_cycle(&self) -> Option<Cycle> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 130 |     pub fn check_cycle(&self, cycle: &Cycle) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 144 |     pub fn collapse_pair(&mut self, a: u32, b: u32) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 173 |     pub fn collapse_cycle(&mut self, cycle: &Cycle) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 |     pub fn simplify(&mut self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 200 |     pub fn simplified(mut self) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 205 |     pub fn find_ends(&self) -> (Vec<u32>, Vec<u32>) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 221 |     pub fn needed_to_connect(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `rotate`, `new`, `len`, and `slice` are never used
[INFO] [stdout]   --> src/cycle.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Cycle {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 10 |     fn rotate(cycle: &mut [u32], by: usize) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn new(mut nodes: Vec<u32>) -> Option<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn slice(&self) -> &[u32] {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Node` is never used
[INFO] [stdout]   --> src/parsing.rs:26:6
[INFO] [stdout]    |
[INFO] [stdout] 26 | enum Node {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ConnectionType` is never used
[INFO] [stdout]   --> src/parsing.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 | enum ConnectionType {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Connection` is never constructed
[INFO] [stdout]   --> src/parsing.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct Connection {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `List` is never constructed
[INFO] [stdout]   --> src/parsing.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct List(Vec<Exportable>);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Full` is never constructed
[INFO] [stdout]   --> src/parsing.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | struct Full(Vec<Exportable>);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cycle` is never constructed
[INFO] [stdout]   --> src/parsing.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | struct Cycle(Vec<Exportable>);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expression` is never used
[INFO] [stdout]   --> src/parsing.rs:48:6
[INFO] [stdout]    |
[INFO] [stdout] 48 | enum Expression {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Exportable` is never constructed
[INFO] [stdout]   --> src/parsing.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | struct Exportable {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `name` is never used
[INFO] [stdout]   --> src/parsing.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn name(input: &str) -> IResult<&str, String> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `number` is never used
[INFO] [stdout]   --> src/parsing.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn number(input: &str) -> IResult<&str, u32> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `node` is never used
[INFO] [stdout]   --> src/parsing.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn node(input: &str) -> IResult<&str, Node> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expression` is never used
[INFO] [stdout]   --> src/parsing.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn expression(input: &str) -> IResult<&str, Expression> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `exportable` is never used
[INFO] [stdout]   --> src/parsing.rs:83:4
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn exportable(input: &str) -> IResult<&str, Exportable> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cycle` is never used
[INFO] [stdout]   --> src/parsing.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn cycle(input: &str) -> IResult<&str, Cycle> {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/parsing.rs:79:15
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn expression(input: &str) -> IResult<&str, Expression> {
[INFO] [stdout]    |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/graph.rs:18:8
[INFO] [stdout]     |
[INFO] [stdout] 13  | impl Graph {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 18  |     fn with_node(&mut self, id: u32) -> &mut BTreeSet<u32> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22  |     pub fn connect(&mut self, from: u32, to: u32) -> bool {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34  |     pub fn disconnect(&mut self, from: u32, to: u32) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41  |     pub fn subgraph(&self, nodes: &[u32]) -> Self {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59  |     pub fn cleanup(&mut self) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74  |     pub fn to(&self, to: u32) -> impl Iterator<Item = u32> + '_ {
[INFO] [stdout]     |            ^^
[INFO] [stdout] ...
[INFO] [stdout] 84  |     pub fn from(&self, id: u32) -> Option<&BTreeSet<u32>> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 88  |     pub fn find_cycle(&self) -> Option<Cycle> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 130 |     pub fn check_cycle(&self, cycle: &Cycle) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 144 |     pub fn collapse_pair(&mut self, a: u32, b: u32) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 173 |     pub fn collapse_cycle(&mut self, cycle: &Cycle) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 |     pub fn simplify(&mut self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 200 |     pub fn simplified(mut self) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 205 |     pub fn find_ends(&self) -> (Vec<u32>, Vec<u32>) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 221 |     pub fn needed_to_connect(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `rotate`, `new`, `len`, and `slice` are never used
[INFO] [stdout]   --> src/cycle.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Cycle {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 10 |     fn rotate(cycle: &mut [u32], by: usize) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn new(mut nodes: Vec<u32>) -> Option<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn slice(&self) -> &[u32] {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Node` is never used
[INFO] [stdout]   --> src/parsing.rs:26:6
[INFO] [stdout]    |
[INFO] [stdout] 26 | enum Node {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ConnectionType` is never used
[INFO] [stdout]   --> src/parsing.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 | enum ConnectionType {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Connection` is never constructed
[INFO] [stdout]   --> src/parsing.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct Connection {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `List` is never constructed
[INFO] [stdout]   --> src/parsing.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct List(Vec<Exportable>);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Full` is never constructed
[INFO] [stdout]   --> src/parsing.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | struct Full(Vec<Exportable>);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cycle` is never constructed
[INFO] [stdout]   --> src/parsing.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | struct Cycle(Vec<Exportable>);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expression` is never used
[INFO] [stdout]   --> src/parsing.rs:48:6
[INFO] [stdout]    |
[INFO] [stdout] 48 | enum Expression {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Exportable` is never constructed
[INFO] [stdout]   --> src/parsing.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | struct Exportable {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `name` is never used
[INFO] [stdout]   --> src/parsing.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn name(input: &str) -> IResult<&str, String> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `number` is never used
[INFO] [stdout]   --> src/parsing.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn number(input: &str) -> IResult<&str, u32> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `node` is never used
[INFO] [stdout]   --> src/parsing.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn node(input: &str) -> IResult<&str, Node> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expression` is never used
[INFO] [stdout]   --> src/parsing.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn expression(input: &str) -> IResult<&str, Expression> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `exportable` is never used
[INFO] [stdout]   --> src/parsing.rs:83:4
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn exportable(input: &str) -> IResult<&str, Exportable> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cycle` is never used
[INFO] [stdout]   --> src/parsing.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn cycle(input: &str) -> IResult<&str, Cycle> {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.97s
[INFO] running `Command { std: "docker" "inspect" "9eb8763facd7d29b8a2ae4065504b26c162f9a879e2fbbf7fd1475ae3bb28321", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9eb8763facd7d29b8a2ae4065504b26c162f9a879e2fbbf7fd1475ae3bb28321", kill_on_drop: false }`
[INFO] [stdout] 9eb8763facd7d29b8a2ae4065504b26c162f9a879e2fbbf7fd1475ae3bb28321