Oct 12 16:20:41.758 INFO checking nuclearpesto/rust-binary-tree against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 16:20:41.759 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-5/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-5/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +4021bd0b3c5815b087d6db10ce461e7e4854ade7-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 12 16:20:42.218 INFO blam! 23b35ee83beba0d6bdc83855012736a683f712de903bfd37830fb4df7a148efd
Oct 12 16:20:42.220 INFO running `"docker" "start" "-a" "23b35ee83beba0d6bdc83855012736a683f712de903bfd37830fb4df7a148efd"`
Oct 12 16:20:44.507 INFO kablam! usermod: no changes
Oct 12 16:20:44.560 INFO kablam!     Checking binarytree v0.1.0 (/source)
Oct 12 16:20:45.184 INFO kablam! warning[E0170]: pattern binding `Less` is named the same as one of the variants of the type `std::cmp::Ordering`
Oct 12 16:20:45.184 INFO kablam!   --> src/main.rs:55:17
Oct 12 16:20:45.184 INFO kablam!    |
Oct 12 16:20:45.184 INFO kablam! 55 |                 Less => {
Oct 12 16:20:45.184 INFO kablam!    |                 ^^^^ help: to match on the variant, qualify the path: `std::cmp::Ordering::Less`
Oct 12 16:20:45.184 INFO kablam! 
Oct 12 16:20:45.184 INFO kablam! warning[E0170]: pattern binding `Equal` is named the same as one of the variants of the type `std::cmp::Ordering`
Oct 12 16:20:45.184 INFO kablam!   --> src/main.rs:67:17
Oct 12 16:20:45.184 INFO kablam!    |
Oct 12 16:20:45.184 INFO kablam! 67 |                 Equal => {
Oct 12 16:20:45.184 INFO kablam!    |                 ^^^^^ help: to match on the variant, qualify the path: `std::cmp::Ordering::Equal`
Oct 12 16:20:45.184 INFO kablam! 
Oct 12 16:20:45.187 INFO kablam! warning: unreachable pattern
Oct 12 16:20:45.187 INFO kablam!   --> src/main.rs:61:17
Oct 12 16:20:45.187 INFO kablam!    |
Oct 12 16:20:45.187 INFO kablam! 55 |                 Less => {
Oct 12 16:20:45.187 INFO kablam!    |                 ---- matches any value
Oct 12 16:20:45.187 INFO kablam! ...
Oct 12 16:20:45.187 INFO kablam! 61 |                 More => {
Oct 12 16:20:45.187 INFO kablam!    |                 ^^^^ unreachable pattern
Oct 12 16:20:45.188 INFO kablam!    |
Oct 12 16:20:45.188 INFO kablam!    = note: #[warn(unreachable_patterns)] on by default
Oct 12 16:20:45.188 INFO kablam! 
Oct 12 16:20:45.188 INFO kablam! warning: unreachable pattern
Oct 12 16:20:45.188 INFO kablam!   --> src/main.rs:67:17
Oct 12 16:20:45.188 INFO kablam!    |
Oct 12 16:20:45.188 INFO kablam! 55 |                 Less => {
Oct 12 16:20:45.188 INFO kablam!    |                 ---- matches any value
Oct 12 16:20:45.188 INFO kablam! ...
Oct 12 16:20:45.188 INFO kablam! 67 |                 Equal => {
Oct 12 16:20:45.188 INFO kablam!    |                 ^^^^^ unreachable pattern
Oct 12 16:20:45.188 INFO kablam! 
Oct 12 16:20:45.188 INFO kablam! warning: unused variable: `Less`
Oct 12 16:20:45.188 INFO kablam!   --> src/main.rs:55:17
Oct 12 16:20:45.188 INFO kablam!    |
Oct 12 16:20:45.188 INFO kablam! 55 |                 Less => {
Oct 12 16:20:45.188 INFO kablam!    |                 ^^^^ help: consider using `_Less` instead
Oct 12 16:20:45.188 INFO kablam!    |
Oct 12 16:20:45.188 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 12 16:20:45.188 INFO kablam! 
Oct 12 16:20:45.188 INFO kablam! warning: unused variable: `More`
Oct 12 16:20:45.188 INFO kablam!   --> src/main.rs:61:17
Oct 12 16:20:45.188 INFO kablam!    |
Oct 12 16:20:45.188 INFO kablam! 61 |                 More => {
Oct 12 16:20:45.188 INFO kablam!    |                 ^^^^ help: consider using `_More` instead
Oct 12 16:20:45.188 INFO kablam! 
Oct 12 16:20:45.188 INFO kablam! warning: unused variable: `Equal`
Oct 12 16:20:45.188 INFO kablam!   --> src/main.rs:67:17
Oct 12 16:20:45.188 INFO kablam!    |
Oct 12 16:20:45.188 INFO kablam! 67 |                 Equal => {
Oct 12 16:20:45.188 INFO kablam!    |                 ^^^^^ help: consider using `_Equal` instead
Oct 12 16:20:45.188 INFO kablam! 
Oct 12 16:20:45.210 INFO kablam! warning: struct is never constructed: `BTree`
Oct 12 16:20:45.210 INFO kablam!  --> src/main.rs:4:5
Oct 12 16:20:45.210 INFO kablam!   |
Oct 12 16:20:45.210 INFO kablam! 4 |     pub struct BTree {
Oct 12 16:20:45.210 INFO kablam!   |     ^^^^^^^^^^^^^^^^
Oct 12 16:20:45.210 INFO kablam!   |
Oct 12 16:20:45.212 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 12 16:20:45.212 INFO kablam! 
Oct 12 16:20:45.212 INFO kablam! warning: method is never used: `insert`
Oct 12 16:20:45.212 INFO kablam!  --> src/main.rs:8:9
Oct 12 16:20:45.212 INFO kablam!   |
Oct 12 16:20:45.212 INFO kablam! 8 |         pub fn insert(tree: &BTree, key: &str) -> BTree {
Oct 12 16:20:45.212 INFO kablam!   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 16:20:45.212 INFO kablam! 
Oct 12 16:20:45.212 INFO kablam! warning: method is never used: `new`
Oct 12 16:20:45.212 INFO kablam!   --> src/main.rs:13:9
Oct 12 16:20:45.212 INFO kablam!    |
Oct 12 16:20:45.212 INFO kablam! 13 |         pub fn new(key: &str) -> BTree {
Oct 12 16:20:45.212 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 16:20:45.212 INFO kablam! 
Oct 12 16:20:45.212 INFO kablam! warning: struct is never constructed: `Node`
Oct 12 16:20:45.212 INFO kablam!   --> src/main.rs:21:5
Oct 12 16:20:45.212 INFO kablam!    |
Oct 12 16:20:45.212 INFO kablam! 21 |     struct Node {
Oct 12 16:20:45.212 INFO kablam!    |     ^^^^^^^^^^^
Oct 12 16:20:45.212 INFO kablam! 
Oct 12 16:20:45.212 INFO kablam! warning: method is never used: `insert`
Oct 12 16:20:45.212 INFO kablam!   --> src/main.rs:28:9
Oct 12 16:20:45.212 INFO kablam!    |
Oct 12 16:20:45.212 INFO kablam! 28 |         pub fn insert(tree: &Option<Rc<Node>>, key: &str) -> (Option<Rc<Node>>) {
Oct 12 16:20:45.212 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 16:20:45.212 INFO kablam! 
Oct 12 16:20:45.212 INFO kablam! warning: method is never used: `clone_node`
Oct 12 16:20:45.212 INFO kablam!   --> src/main.rs:35:9
Oct 12 16:20:45.212 INFO kablam!    |
Oct 12 16:20:45.212 INFO kablam! 35 |         fn clone_node(node: &Option<Rc<Node>>) -> (Option<Rc<Node>>) {
Oct 12 16:20:45.212 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 16:20:45.212 INFO kablam! 
Oct 12 16:20:45.212 INFO kablam! warning: method is never used: `new_leaf`
Oct 12 16:20:45.212 INFO kablam!   --> src/main.rs:41:9
Oct 12 16:20:45.212 INFO kablam!    |
Oct 12 16:20:45.212 INFO kablam! 41 |         fn new_leaf(key: &str) -> (Option<Rc<Node>>) {
Oct 12 16:20:45.212 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 16:20:45.212 INFO kablam! 
Oct 12 16:20:45.212 INFO kablam! warning: method is never used: `tree_by_key`
Oct 12 16:20:45.212 INFO kablam!   --> src/main.rs:49:9
Oct 12 16:20:45.212 INFO kablam!    |
Oct 12 16:20:45.212 INFO kablam! 49 |         fn tree_by_key(tree: &Rc<Node>, key: &str) -> (Option<Rc<Node>>) {
Oct 12 16:20:45.212 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 16:20:45.212 INFO kablam! 
Oct 12 16:20:45.212 INFO kablam! warning: variable `Less` should have a snake case name such as `less`
Oct 12 16:20:45.212 INFO kablam!   --> src/main.rs:55:17
Oct 12 16:20:45.212 INFO kablam!    |
Oct 12 16:20:45.212 INFO kablam! 55 |                 Less => {
Oct 12 16:20:45.212 INFO kablam!    |                 ^^^^
Oct 12 16:20:45.212 INFO kablam!    |
Oct 12 16:20:45.212 INFO kablam!    = note: #[warn(non_snake_case)] on by default
Oct 12 16:20:45.212 INFO kablam! 
Oct 12 16:20:45.212 INFO kablam! warning: variable `More` should have a snake case name such as `more`
Oct 12 16:20:45.212 INFO kablam!   --> src/main.rs:61:17
Oct 12 16:20:45.212 INFO kablam!    |
Oct 12 16:20:45.213 INFO kablam! 61 |                 More => {
Oct 12 16:20:45.213 INFO kablam!    |                 ^^^^
Oct 12 16:20:45.213 INFO kablam! 
Oct 12 16:20:45.213 INFO kablam! warning: variable `Equal` should have a snake case name such as `equal`
Oct 12 16:20:45.213 INFO kablam!   --> src/main.rs:67:17
Oct 12 16:20:45.213 INFO kablam!    |
Oct 12 16:20:45.213 INFO kablam! 67 |                 Equal => {
Oct 12 16:20:45.213 INFO kablam!    |                 ^^^^^
Oct 12 16:20:45.213 INFO kablam! 
Oct 12 16:20:45.236 INFO kablam! warning[E0170]: pattern binding `Less` is named the same as one of the variants of the type `std::cmp::Ordering`
Oct 12 16:20:45.236 INFO kablam!   --> src/main.rs:55:17
Oct 12 16:20:45.236 INFO kablam!    |
Oct 12 16:20:45.236 INFO kablam! 55 |                 Less => {
Oct 12 16:20:45.236 INFO kablam!    |                 ^^^^ help: to match on the variant, qualify the path: `std::cmp::Ordering::Less`
Oct 12 16:20:45.236 INFO kablam! 
Oct 12 16:20:45.236 INFO kablam! warning[E0170]: pattern binding `Equal` is named the same as one of the variants of the type `std::cmp::Ordering`
Oct 12 16:20:45.236 INFO kablam!   --> src/main.rs:67:17
Oct 12 16:20:45.236 INFO kablam!    |
Oct 12 16:20:45.236 INFO kablam! 67 |                 Equal => {
Oct 12 16:20:45.236 INFO kablam!    |                 ^^^^^ help: to match on the variant, qualify the path: `std::cmp::Ordering::Equal`
Oct 12 16:20:45.236 INFO kablam! 
Oct 12 16:20:45.236 INFO kablam! warning: unreachable pattern
Oct 12 16:20:45.236 INFO kablam!   --> src/main.rs:61:17
Oct 12 16:20:45.236 INFO kablam!    |
Oct 12 16:20:45.236 INFO kablam! 55 |                 Less => {
Oct 12 16:20:45.236 INFO kablam!    |                 ---- matches any value
Oct 12 16:20:45.236 INFO kablam! ...
Oct 12 16:20:45.236 INFO kablam! 61 |                 More => {
Oct 12 16:20:45.236 INFO kablam!    |                 ^^^^ unreachable pattern
Oct 12 16:20:45.236 INFO kablam!    |
Oct 12 16:20:45.236 INFO kablam!    = note: #[warn(unreachable_patterns)] on by default
Oct 12 16:20:45.236 INFO kablam! 
Oct 12 16:20:45.236 INFO kablam! warning: unreachable pattern
Oct 12 16:20:45.236 INFO kablam!   --> src/main.rs:67:17
Oct 12 16:20:45.236 INFO kablam!    |
Oct 12 16:20:45.236 INFO kablam! 55 |                 Less => {
Oct 12 16:20:45.236 INFO kablam!    |                 ---- matches any value
Oct 12 16:20:45.236 INFO kablam! ...
Oct 12 16:20:45.236 INFO kablam! 67 |                 Equal => {
Oct 12 16:20:45.236 INFO kablam!    |                 ^^^^^ unreachable pattern
Oct 12 16:20:45.237 INFO kablam! 
Oct 12 16:20:45.237 INFO kablam! warning: unused variable: `Less`
Oct 12 16:20:45.237 INFO kablam!   --> src/main.rs:55:17
Oct 12 16:20:45.237 INFO kablam!    |
Oct 12 16:20:45.237 INFO kablam! 55 |                 Less => {
Oct 12 16:20:45.237 INFO kablam!    |                 ^^^^ help: consider using `_Less` instead
Oct 12 16:20:45.237 INFO kablam!    |
Oct 12 16:20:45.237 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 12 16:20:45.237 INFO kablam! 
Oct 12 16:20:45.237 INFO kablam! warning: unused variable: `More`
Oct 12 16:20:45.237 INFO kablam!   --> src/main.rs:61:17
Oct 12 16:20:45.237 INFO kablam!    |
Oct 12 16:20:45.237 INFO kablam! 61 |                 More => {
Oct 12 16:20:45.237 INFO kablam!    |                 ^^^^ help: consider using `_More` instead
Oct 12 16:20:45.237 INFO kablam! 
Oct 12 16:20:45.237 INFO kablam! warning: unused variable: `Equal`
Oct 12 16:20:45.237 INFO kablam!   --> src/main.rs:67:17
Oct 12 16:20:45.237 INFO kablam!    |
Oct 12 16:20:45.237 INFO kablam! 67 |                 Equal => {
Oct 12 16:20:45.237 INFO kablam!    |                 ^^^^^ help: consider using `_Equal` instead
Oct 12 16:20:45.237 INFO kablam! 
Oct 12 16:20:45.248 INFO kablam! warning: variable `Less` should have a snake case name such as `less`
Oct 12 16:20:45.248 INFO kablam!   --> src/main.rs:55:17
Oct 12 16:20:45.248 INFO kablam!    |
Oct 12 16:20:45.248 INFO kablam! 55 |                 Less => {
Oct 12 16:20:45.248 INFO kablam!    |                 ^^^^
Oct 12 16:20:45.248 INFO kablam!    |
Oct 12 16:20:45.248 INFO kablam!    = note: #[warn(non_snake_case)] on by default
Oct 12 16:20:45.248 INFO kablam! 
Oct 12 16:20:45.248 INFO kablam! warning: variable `More` should have a snake case name such as `more`
Oct 12 16:20:45.248 INFO kablam!   --> src/main.rs:61:17
Oct 12 16:20:45.248 INFO kablam!    |
Oct 12 16:20:45.248 INFO kablam! 61 |                 More => {
Oct 12 16:20:45.248 INFO kablam!    |                 ^^^^
Oct 12 16:20:45.248 INFO kablam! 
Oct 12 16:20:45.248 INFO kablam! warning: variable `Equal` should have a snake case name such as `equal`
Oct 12 16:20:45.248 INFO kablam!   --> src/main.rs:67:17
Oct 12 16:20:45.248 INFO kablam!    |
Oct 12 16:20:45.248 INFO kablam! 67 |                 Equal => {
Oct 12 16:20:45.248 INFO kablam!    |                 ^^^^^
Oct 12 16:20:45.248 INFO kablam! 
Oct 12 16:20:45.297 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
Oct 12 16:20:45.299 INFO kablam! su: No module specific data is present
Oct 12 16:20:47.285 INFO running `"docker" "rm" "-f" "23b35ee83beba0d6bdc83855012736a683f712de903bfd37830fb4df7a148efd"`
Oct 12 16:20:47.660 INFO blam! 23b35ee83beba0d6bdc83855012736a683f712de903bfd37830fb4df7a148efd