Oct 12 13:52:58.249 INFO checking shiroyasha/rust-too-many-lists against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 12 13:52:58.249 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-1/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-1/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/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 +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-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 13:52:58.690 INFO blam! abdd342a3028930e0c11a246237fe6ab7b95930828258312b187a9f91bfeaf05
Oct 12 13:52:58.692 INFO running `"docker" "start" "-a" "abdd342a3028930e0c11a246237fe6ab7b95930828258312b187a9f91bfeaf05"`
Oct 12 13:52:59.944 INFO kablam! usermod: no changes
Oct 12 13:53:00.000 INFO kablam!     Checking rust-too-many-lists v0.1.0 (/source)
Oct 12 13:53:00.460 INFO kablam! warning: struct is never constructed: `List`
Oct 12 13:53:00.460 INFO kablam!  --> src/first.rs:3:1
Oct 12 13:53:00.460 INFO kablam!   |
Oct 12 13:53:00.460 INFO kablam! 3 | pub struct List {
Oct 12 13:53:00.460 INFO kablam!   | ^^^^^^^^^^^^^^^
Oct 12 13:53:00.460 INFO kablam!   |
Oct 12 13:53:00.460 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 12 13:53:00.460 INFO kablam! 
Oct 12 13:53:00.460 INFO kablam! warning: variant is never constructed: `More`
Oct 12 13:53:00.460 INFO kablam!  --> src/first.rs:9:5
Oct 12 13:53:00.460 INFO kablam!   |
Oct 12 13:53:00.460 INFO kablam! 9 |     More(Box<Node>),
Oct 12 13:53:00.460 INFO kablam!   |     ^^^^^^^^^^^^^^^
Oct 12 13:53:00.460 INFO kablam! 
Oct 12 13:53:00.460 INFO kablam! warning: field is never used: `elem`
Oct 12 13:53:00.460 INFO kablam!   --> src/first.rs:13:5
Oct 12 13:53:00.460 INFO kablam!    |
Oct 12 13:53:00.460 INFO kablam! 13 |     elem: i32,
Oct 12 13:53:00.460 INFO kablam!    |     ^^^^^^^^^
Oct 12 13:53:00.460 INFO kablam! 
Oct 12 13:53:00.460 INFO kablam! warning: method is never used: `new`
Oct 12 13:53:00.460 INFO kablam!   --> src/first.rs:18:5
Oct 12 13:53:00.460 INFO kablam!    |
Oct 12 13:53:00.460 INFO kablam! 18 |     pub fn new() -> Self {
Oct 12 13:53:00.460 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.460 INFO kablam! 
Oct 12 13:53:00.460 INFO kablam! warning: method is never used: `push`
Oct 12 13:53:00.460 INFO kablam!   --> src/first.rs:22:5
Oct 12 13:53:00.460 INFO kablam!    |
Oct 12 13:53:00.460 INFO kablam! 22 |     pub fn push(&mut self, elem: i32) {
Oct 12 13:53:00.460 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.460 INFO kablam! 
Oct 12 13:53:00.460 INFO kablam! warning: method is never used: `pop`
Oct 12 13:53:00.460 INFO kablam!   --> src/first.rs:31:5
Oct 12 13:53:00.460 INFO kablam!    |
Oct 12 13:53:00.460 INFO kablam! 31 |     pub fn pop(&mut self) -> Option<i32> {
Oct 12 13:53:00.460 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.460 INFO kablam! 
Oct 12 13:53:00.461 INFO kablam! warning: type alias is never used: `Link`
Oct 12 13:53:00.461 INFO kablam!  --> src/second.rs:7:1
Oct 12 13:53:00.461 INFO kablam!   |
Oct 12 13:53:00.461 INFO kablam! 7 | type Link<T> = Option<Box<Node<T>>>;
Oct 12 13:53:00.461 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.461 INFO kablam! 
Oct 12 13:53:00.461 INFO kablam! warning: struct is never constructed: `Node`
Oct 12 13:53:00.461 INFO kablam!  --> src/second.rs:9:1
Oct 12 13:53:00.461 INFO kablam!   |
Oct 12 13:53:00.461 INFO kablam! 9 | struct Node<T> {
Oct 12 13:53:00.461 INFO kablam!   | ^^^^^^^^^^^^^^
Oct 12 13:53:00.461 INFO kablam! 
Oct 12 13:53:00.461 INFO kablam! warning: method is never used: `new`
Oct 12 13:53:00.461 INFO kablam!   --> src/second.rs:15:5
Oct 12 13:53:00.464 INFO kablam!    |
Oct 12 13:53:00.464 INFO kablam! 15 |     pub fn new() -> Self {
Oct 12 13:53:00.464 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.464 INFO kablam! 
Oct 12 13:53:00.464 INFO kablam! warning: method is never used: `push`
Oct 12 13:53:00.464 INFO kablam!   --> src/second.rs:19:5
Oct 12 13:53:00.464 INFO kablam!    |
Oct 12 13:53:00.464 INFO kablam! 19 |     pub fn push(&mut self, elem: T) {
Oct 12 13:53:00.464 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.464 INFO kablam! 
Oct 12 13:53:00.464 INFO kablam! warning: method is never used: `peek`
Oct 12 13:53:00.464 INFO kablam!   --> src/second.rs:37:5
Oct 12 13:53:00.464 INFO kablam!    |
Oct 12 13:53:00.464 INFO kablam! 37 |     pub fn peek(&self) -> Option<&T> {
Oct 12 13:53:00.464 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.464 INFO kablam! 
Oct 12 13:53:00.464 INFO kablam! warning: method is never used: `peek_mut`
Oct 12 13:53:00.464 INFO kablam!   --> src/second.rs:43:5
Oct 12 13:53:00.464 INFO kablam!    |
Oct 12 13:53:00.464 INFO kablam! 43 |     pub fn peek_mut(&mut self) -> Option<&mut T> {
Oct 12 13:53:00.464 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.464 INFO kablam! 
Oct 12 13:53:00.464 INFO kablam! warning: struct is never constructed: `IntoIter`
Oct 12 13:53:00.464 INFO kablam!   --> src/second.rs:60:1
Oct 12 13:53:00.464 INFO kablam!    |
Oct 12 13:53:00.464 INFO kablam! 60 | pub struct IntoIter<T>(List<T>);
Oct 12 13:53:00.464 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.464 INFO kablam! 
Oct 12 13:53:00.464 INFO kablam! warning: method is never used: `into_iter`
Oct 12 13:53:00.464 INFO kablam!   --> src/second.rs:63:5
Oct 12 13:53:00.464 INFO kablam!    |
Oct 12 13:53:00.464 INFO kablam! 63 |     pub fn into_iter(self) -> IntoIter<T> {
Oct 12 13:53:00.464 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.464 INFO kablam! 
Oct 12 13:53:00.464 INFO kablam! warning: struct is never constructed: `Iter`
Oct 12 13:53:00.464 INFO kablam!   --> src/second.rs:76:1
Oct 12 13:53:00.464 INFO kablam!    |
Oct 12 13:53:00.464 INFO kablam! 76 | pub struct Iter<'a, T: 'a> {
Oct 12 13:53:00.464 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.464 INFO kablam! 
Oct 12 13:53:00.464 INFO kablam! warning: method is never used: `iter`
Oct 12 13:53:00.464 INFO kablam!   --> src/second.rs:81:5
Oct 12 13:53:00.464 INFO kablam!    |
Oct 12 13:53:00.464 INFO kablam! 81 |     pub fn iter<'a>(&'a self) -> Iter<'a, T> {
Oct 12 13:53:00.464 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.464 INFO kablam! 
Oct 12 13:53:00.464 INFO kablam! warning: struct is never constructed: `Tree`
Oct 12 13:53:00.464 INFO kablam!  --> src/treeee.rs:1:1
Oct 12 13:53:00.464 INFO kablam!   |
Oct 12 13:53:00.464 INFO kablam! 1 | pub struct Tree<'a> {
Oct 12 13:53:00.465 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.465 INFO kablam! 
Oct 12 13:53:00.465 INFO kablam! warning: type alias is never used: `Link`
Oct 12 13:53:00.465 INFO kablam!  --> src/treeee.rs:5:1
Oct 12 13:53:00.465 INFO kablam!   |
Oct 12 13:53:00.465 INFO kablam! 5 | type Link<'a> = Option<Box<Node<'a>>>;
Oct 12 13:53:00.465 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.465 INFO kablam! 
Oct 12 13:53:00.465 INFO kablam! warning: struct is never constructed: `Node`
Oct 12 13:53:00.465 INFO kablam!  --> src/treeee.rs:7:1
Oct 12 13:53:00.465 INFO kablam!   |
Oct 12 13:53:00.465 INFO kablam! 7 | struct Node<'a> {
Oct 12 13:53:00.465 INFO kablam!   | ^^^^^^^^^^^^^^^
Oct 12 13:53:00.465 INFO kablam! 
Oct 12 13:53:00.465 INFO kablam! warning: method is never used: `new`
Oct 12 13:53:00.465 INFO kablam!   --> src/treeee.rs:14:5
Oct 12 13:53:00.465 INFO kablam!    |
Oct 12 13:53:00.465 INFO kablam! 14 |     pub fn new() -> Self {
Oct 12 13:53:00.465 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.465 INFO kablam! 
Oct 12 13:53:00.465 INFO kablam! warning: method is never used: `add`
Oct 12 13:53:00.465 INFO kablam!   --> src/treeee.rs:18:5
Oct 12 13:53:00.465 INFO kablam!    |
Oct 12 13:53:00.465 INFO kablam! 18 |     pub fn add(&mut self, value: &'a str) {
Oct 12 13:53:00.465 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.465 INFO kablam! 
Oct 12 13:53:00.465 INFO kablam! warning: method is never used: `display`
Oct 12 13:53:00.465 INFO kablam!   --> src/treeee.rs:31:5
Oct 12 13:53:00.465 INFO kablam!    |
Oct 12 13:53:00.465 INFO kablam! 31 |     pub fn display(&self) {
Oct 12 13:53:00.465 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.465 INFO kablam! 
Oct 12 13:53:00.465 INFO kablam! warning: method is never used: `insert`
Oct 12 13:53:00.465 INFO kablam!   --> src/treeee.rs:35:5
Oct 12 13:53:00.465 INFO kablam!    |
Oct 12 13:53:00.465 INFO kablam! 35 |     fn insert(head: &mut Node<'a>, new_node : Box<Node<'a>>) {
Oct 12 13:53:00.465 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.465 INFO kablam! 
Oct 12 13:53:00.465 INFO kablam! warning: method is never used: `display_node`
Oct 12 13:53:00.465 INFO kablam!   --> src/treeee.rs:49:5
Oct 12 13:53:00.465 INFO kablam!    |
Oct 12 13:53:00.465 INFO kablam! 49 |     fn display_node(node : &Node, depth: i32) {
Oct 12 13:53:00.465 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.465 INFO kablam! 
Oct 12 13:53:00.465 INFO kablam! warning: struct is never constructed: `Collection`
Oct 12 13:53:00.465 INFO kablam!  --> src/four.rs:3:1
Oct 12 13:53:00.465 INFO kablam!   |
Oct 12 13:53:00.465 INFO kablam! 3 | struct Collection<'a> {
Oct 12 13:53:00.465 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.465 INFO kablam! 
Oct 12 13:53:00.465 INFO kablam! warning: struct is never constructed: `Elem`
Oct 12 13:53:00.465 INFO kablam!  --> src/four.rs:8:1
Oct 12 13:53:00.465 INFO kablam!   |
Oct 12 13:53:00.465 INFO kablam! 8 | struct Elem<'a> {
Oct 12 13:53:00.465 INFO kablam!   | ^^^^^^^^^^^^^^^
Oct 12 13:53:00.465 INFO kablam! 
Oct 12 13:53:00.465 INFO kablam! warning: function is never used: `insert`
Oct 12 13:53:00.465 INFO kablam!   --> src/four.rs:12:1
Oct 12 13:53:00.465 INFO kablam!    |
Oct 12 13:53:00.465 INFO kablam! 12 | fn insert<'a>(c : &mut Collection<'a>, e : Box<Elem<'a>>) {
Oct 12 13:53:00.465 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.465 INFO kablam! 
Oct 12 13:53:00.465 INFO kablam! warning: function is never used: `a`
Oct 12 13:53:00.465 INFO kablam!   --> src/four.rs:17:1
Oct 12 13:53:00.465 INFO kablam!    |
Oct 12 13:53:00.465 INFO kablam! 17 | fn a<'a>() -> Collection<'a> {
Oct 12 13:53:00.465 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:53:00.465 INFO kablam! 
Oct 12 13:53:00.756 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
Oct 12 13:53:00.756 INFO kablam! su: No module specific data is present
Oct 12 13:53:01.300 INFO running `"docker" "rm" "-f" "abdd342a3028930e0c11a246237fe6ab7b95930828258312b187a9f91bfeaf05"`
Oct 12 13:53:01.544 INFO blam! abdd342a3028930e0c11a246237fe6ab7b95930828258312b187a9f91bfeaf05