[INFO] cloning repository https://github.com/rafaelgdgs/binary-tree-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rafaelgdgs/binary-tree-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frafaelgdgs%2Fbinary-tree-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frafaelgdgs%2Fbinary-tree-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9572004ce7a7cd7ea11b016ce97409d07c136aa7
[INFO] checking rafaelgdgs/binary-tree-rust against try#863511eff87e66198b396935f3b5c8a543022f53 for pr-139493-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frafaelgdgs%2Fbinary-tree-rust" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rafaelgdgs/binary-tree-rust
[INFO] finished tweaking git repo https://github.com/rafaelgdgs/binary-tree-rust
[INFO] tweaked toml for git repo https://github.com/rafaelgdgs/binary-tree-rust written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rafaelgdgs/binary-tree-rust on toolchain 863511eff87e66198b396935f3b5c8a543022f53
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+863511eff87e66198b396935f3b5c8a543022f53" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rafaelgdgs/binary-tree-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" "+863511eff87e66198b396935f3b5c8a543022f53" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+863511eff87e66198b396935f3b5c8a543022f53" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1dd34fb8ee876423bec59308ff92630cf5695a4ac0ffed4bee80c1d9f7a38e5e
[INFO] running `Command { std: "docker" "start" "-a" "1dd34fb8ee876423bec59308ff92630cf5695a4ac0ffed4bee80c1d9f7a38e5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1dd34fb8ee876423bec59308ff92630cf5695a4ac0ffed4bee80c1d9f7a38e5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dd34fb8ee876423bec59308ff92630cf5695a4ac0ffed4bee80c1d9f7a38e5e", kill_on_drop: false }`
[INFO] [stdout] 1dd34fb8ee876423bec59308ff92630cf5695a4ac0ffed4bee80c1d9f7a38e5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+863511eff87e66198b396935f3b5c8a543022f53" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7d37e4400701b91a4f1c7e80ee2eb5f9665b191134d03682689adcc5bfc878c
[INFO] running `Command { std: "docker" "start" "-a" "a7d37e4400701b91a4f1c7e80ee2eb5f9665b191134d03682689adcc5bfc878c", kill_on_drop: false }`
[INFO] [stderr]     Checking vending_machine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut N1 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut N2 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut N1 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut N3 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut N4 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut N5 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let mut N6 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut N2 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let mut N7 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut N3 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let mut N8 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let mut N9 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut N4 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let mut N10 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let mut N11 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut N5 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let mut N12 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let mut N6 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let mut N13 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let mut N7 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |     let mut N15 = Rc::new(RefCell::new(Node {
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let mut N8 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let mut N16 = Rc::new(RefCell::new(Node {
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let mut N9 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let mut N10 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let mut N11 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let mut N12 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let mut N13 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |     let mut N15 = Rc::new(RefCell::new(Node {
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let mut N16 = Rc::new(RefCell::new(Node {
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N1` should have a snake case name
[INFO] [stdout]   --> src/main.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut N1 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `n1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N2` should have a snake case name
[INFO] [stdout]   --> src/main.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut N2 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `n2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N3` should have a snake case name
[INFO] [stdout]   --> src/main.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut N3 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `n3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N4` should have a snake case name
[INFO] [stdout]   --> src/main.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut N4 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `n4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N5` should have a snake case name
[INFO] [stdout]   --> src/main.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut N5 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `n5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N6` should have a snake case name
[INFO] [stdout]   --> src/main.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let mut N6 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `n6`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N7` should have a snake case name
[INFO] [stdout]   --> src/main.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let mut N7 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `n7`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N8` should have a snake case name
[INFO] [stdout]   --> src/main.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let mut N8 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `n8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N9` should have a snake case name
[INFO] [stdout]   --> src/main.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let mut N9 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `n9`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N10` should have a snake case name
[INFO] [stdout]   --> src/main.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let mut N10 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^^ help: convert the identifier to snake case: `n10`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N11` should have a snake case name
[INFO] [stdout]   --> src/main.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let mut N11 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^^ help: convert the identifier to snake case: `n11`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N12` should have a snake case name
[INFO] [stdout]   --> src/main.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let mut N12 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^^ help: convert the identifier to snake case: `n12`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N13` should have a snake case name
[INFO] [stdout]   --> src/main.rs:95:13
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let mut N13 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^^ help: convert the identifier to snake case: `n13`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N15` should have a snake case name
[INFO] [stdout]    --> src/main.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |     let mut N15 = Rc::new(RefCell::new(Node {
[INFO] [stdout]     |             ^^^ help: convert the identifier to snake case: `n15`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N16` should have a snake case name
[INFO] [stdout]    --> src/main.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let mut N16 = Rc::new(RefCell::new(Node {
[INFO] [stdout]     |             ^^^ help: convert the identifier to snake case: `n16`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N1` should have a snake case name
[INFO] [stdout]   --> src/main.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut N1 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `n1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N2` should have a snake case name
[INFO] [stdout]   --> src/main.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut N2 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `n2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N3` should have a snake case name
[INFO] [stdout]   --> src/main.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut N3 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `n3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N4` should have a snake case name
[INFO] [stdout]   --> src/main.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut N4 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `n4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N5` should have a snake case name
[INFO] [stdout]   --> src/main.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut N5 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `n5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N6` should have a snake case name
[INFO] [stdout]   --> src/main.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let mut N6 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `n6`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N7` should have a snake case name
[INFO] [stdout]   --> src/main.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let mut N7 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `n7`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N8` should have a snake case name
[INFO] [stdout]   --> src/main.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let mut N8 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `n8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N9` should have a snake case name
[INFO] [stdout]   --> src/main.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let mut N9 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^ help: convert the identifier to snake case: `n9`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N10` should have a snake case name
[INFO] [stdout]   --> src/main.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let mut N10 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^^ help: convert the identifier to snake case: `n10`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N11` should have a snake case name
[INFO] [stdout]   --> src/main.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let mut N11 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^^ help: convert the identifier to snake case: `n11`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N12` should have a snake case name
[INFO] [stdout]   --> src/main.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let mut N12 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^^ help: convert the identifier to snake case: `n12`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N13` should have a snake case name
[INFO] [stdout]   --> src/main.rs:95:13
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let mut N13 = Rc::new(RefCell::new(Node {
[INFO] [stdout]    |             ^^^ help: convert the identifier to snake case: `n13`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N15` should have a snake case name
[INFO] [stdout]    --> src/main.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |     let mut N15 = Rc::new(RefCell::new(Node {
[INFO] [stdout]     |             ^^^ help: convert the identifier to snake case: `n15`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N16` should have a snake case name
[INFO] [stdout]    --> src/main.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let mut N16 = Rc::new(RefCell::new(Node {
[INFO] [stdout]     |             ^^^ help: convert the identifier to snake case: `n16`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "a7d37e4400701b91a4f1c7e80ee2eb5f9665b191134d03682689adcc5bfc878c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7d37e4400701b91a4f1c7e80ee2eb5f9665b191134d03682689adcc5bfc878c", kill_on_drop: false }`
[INFO] [stdout] a7d37e4400701b91a4f1c7e80ee2eb5f9665b191134d03682689adcc5bfc878c