Nov 06 14:34:18.774 INFO checking sbwtw/RBTree against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 06 14:34:18.776 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-1/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/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 +24e66c28980442a48d9458f1a4f9b76cc722dc8a-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"`
Nov 06 14:34:19.098 INFO blam! cdc5d82a42ca68feef542c093d935af7709a2868e91c3f704638dba25252fff2
Nov 06 14:34:19.098 INFO running `"docker" "start" "-a" "cdc5d82a42ca68feef542c093d935af7709a2868e91c3f704638dba25252fff2"`
Nov 06 14:34:20.672 INFO kablam! usermod: no changes
Nov 06 14:34:20.708 INFO kablam!     Checking rbtree v0.1.0 (/source)
Nov 06 14:34:21.160 INFO kablam! warning: variant is never constructed: `Red`
Nov 06 14:34:21.160 INFO kablam!  --> src/main.rs:7:5
Nov 06 14:34:21.160 INFO kablam!   |
Nov 06 14:34:21.160 INFO kablam! 7 |     Red,
Nov 06 14:34:21.160 INFO kablam!   |     ^^^
Nov 06 14:34:21.160 INFO kablam!   |
Nov 06 14:34:21.160 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 06 14:34:21.160 INFO kablam! 
Nov 06 14:34:21.160 INFO kablam! warning: enum is never used: `Direction`
Nov 06 14:34:21.160 INFO kablam!   --> src/main.rs:12:1
Nov 06 14:34:21.160 INFO kablam!    |
Nov 06 14:34:21.160 INFO kablam! 12 | enum Direction {
Nov 06 14:34:21.160 INFO kablam!    | ^^^^^^^^^^^^^^
Nov 06 14:34:21.160 INFO kablam! 
Nov 06 14:34:21.160 INFO kablam! warning: function is never used: `ensure_root_black`
Nov 06 14:34:21.160 INFO kablam!   --> src/main.rs:79:1
Nov 06 14:34:21.160 INFO kablam!    |
Nov 06 14:34:21.160 INFO kablam! 79 | fn ensure_root_black<K: KeyTrait, V: ValueTrait>(root: &mut OptNode<K, V>) {
Nov 06 14:34:21.160 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 14:34:21.160 INFO kablam! 
Nov 06 14:34:21.160 INFO kablam! warning: function is never used: `insert_n`
Nov 06 14:34:21.160 INFO kablam!   --> src/main.rs:85:1
Nov 06 14:34:21.160 INFO kablam!    |
Nov 06 14:34:21.160 INFO kablam! 85 | fn insert_n<K: KeyTrait, V: ValueTrait>(root: &mut OptNode<K, V>, key: K, value: V) -> Option<V> {
Nov 06 14:34:21.160 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 14:34:21.160 INFO kablam! 
Nov 06 14:34:21.160 INFO kablam! warning: method is never used: `set_color`
Nov 06 14:34:21.160 INFO kablam!    --> src/main.rs:120:5
Nov 06 14:34:21.160 INFO kablam!     |
Nov 06 14:34:21.160 INFO kablam! 120 |     fn set_color(&mut self, color: RBColor) {
Nov 06 14:34:21.160 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 14:34:21.160 INFO kablam! 
Nov 06 14:34:21.224 INFO kablam! warning: variant is never constructed: `Red`
Nov 06 14:34:21.224 INFO kablam!  --> src/main.rs:7:5
Nov 06 14:34:21.224 INFO kablam!   |
Nov 06 14:34:21.224 INFO kablam! 7 |     Red,
Nov 06 14:34:21.224 INFO kablam!   |     ^^^
Nov 06 14:34:21.224 INFO kablam!   |
Nov 06 14:34:21.224 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 06 14:34:21.224 INFO kablam! 
Nov 06 14:34:21.225 INFO kablam! warning: enum is never used: `Direction`
Nov 06 14:34:21.225 INFO kablam!   --> src/main.rs:12:1
Nov 06 14:34:21.225 INFO kablam!    |
Nov 06 14:34:21.225 INFO kablam! 12 | enum Direction {
Nov 06 14:34:21.225 INFO kablam!    | ^^^^^^^^^^^^^^
Nov 06 14:34:21.225 INFO kablam! 
Nov 06 14:34:21.225 INFO kablam! warning: function is never used: `ensure_root_black`
Nov 06 14:34:21.225 INFO kablam!   --> src/main.rs:79:1
Nov 06 14:34:21.225 INFO kablam!    |
Nov 06 14:34:21.225 INFO kablam! 79 | fn ensure_root_black<K: KeyTrait, V: ValueTrait>(root: &mut OptNode<K, V>) {
Nov 06 14:34:21.225 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 14:34:21.225 INFO kablam! 
Nov 06 14:34:21.225 INFO kablam! warning: function is never used: `insert_n`
Nov 06 14:34:21.225 INFO kablam!   --> src/main.rs:85:1
Nov 06 14:34:21.225 INFO kablam!    |
Nov 06 14:34:21.225 INFO kablam! 85 | fn insert_n<K: KeyTrait, V: ValueTrait>(root: &mut OptNode<K, V>, key: K, value: V) -> Option<V> {
Nov 06 14:34:21.225 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 14:34:21.225 INFO kablam! 
Nov 06 14:34:21.225 INFO kablam! warning: method is never used: `set_color`
Nov 06 14:34:21.225 INFO kablam!    --> src/main.rs:120:5
Nov 06 14:34:21.225 INFO kablam!     |
Nov 06 14:34:21.225 INFO kablam! 120 |     fn set_color(&mut self, color: RBColor) {
Nov 06 14:34:21.225 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 14:34:21.225 INFO kablam! 
Nov 06 14:34:21.245 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
Nov 06 14:34:21.246 INFO kablam! su: No module specific data is present
Nov 06 14:34:22.081 INFO running `"docker" "rm" "-f" "cdc5d82a42ca68feef542c093d935af7709a2868e91c3f704638dba25252fff2"`
Nov 06 14:34:22.317 INFO blam! cdc5d82a42ca68feef542c093d935af7709a2868e91c3f704638dba25252fff2