Nov 16 13:40:02.868 INFO testing shiroyasha/rust-too-many-lists against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 16 13:40:02.869 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt build --frozen" "-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 16 13:40:03.220 INFO [stdout] f0eade8e2e338594679239f2456f9892e6883efab6245e7bc037dedcc946ccbd
Nov 16 13:40:03.230 INFO running `"docker" "start" "-a" "f0eade8e2e338594679239f2456f9892e6883efab6245e7bc037dedcc946ccbd"`
Nov 16 13:40:04.371 INFO [stderr] usermod: no changes
Nov 16 13:40:04.423 INFO [stderr]    Compiling rust-too-many-lists v0.1.0 (/source)
Nov 16 13:40:04.692 INFO [stderr] warning: struct is never constructed: `List`
Nov 16 13:40:04.692 INFO [stderr]  --> src/first.rs:3:1
Nov 16 13:40:04.692 INFO [stderr]   |
Nov 16 13:40:04.692 INFO [stderr] 3 | pub struct List {
Nov 16 13:40:04.692 INFO [stderr]   | ^^^^^^^^^^^^^^^
Nov 16 13:40:04.693 INFO [stderr]   |
Nov 16 13:40:04.693 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 16 13:40:04.693 INFO [stderr] 
Nov 16 13:40:04.693 INFO [stderr] warning: variant is never constructed: `More`
Nov 16 13:40:04.693 INFO [stderr]  --> src/first.rs:9:5
Nov 16 13:40:04.693 INFO [stderr]   |
Nov 16 13:40:04.693 INFO [stderr] 9 |     More(Box<Node>),
Nov 16 13:40:04.693 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 16 13:40:04.693 INFO [stderr] 
Nov 16 13:40:04.693 INFO [stderr] warning: field is never used: `elem`
Nov 16 13:40:04.693 INFO [stderr]   --> src/first.rs:13:5
Nov 16 13:40:04.693 INFO [stderr]    |
Nov 16 13:40:04.693 INFO [stderr] 13 |     elem: i32,
Nov 16 13:40:04.693 INFO [stderr]    |     ^^^^^^^^^
Nov 16 13:40:04.693 INFO [stderr] 
Nov 16 13:40:04.694 INFO [stderr] warning: method is never used: `new`
Nov 16 13:40:04.694 INFO [stderr]   --> src/first.rs:18:5
Nov 16 13:40:04.694 INFO [stderr]    |
Nov 16 13:40:04.694 INFO [stderr] 18 |     pub fn new() -> Self {
Nov 16 13:40:04.694 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.694 INFO [stderr] 
Nov 16 13:40:04.694 INFO [stderr] warning: method is never used: `push`
Nov 16 13:40:04.694 INFO [stderr]   --> src/first.rs:22:5
Nov 16 13:40:04.694 INFO [stderr]    |
Nov 16 13:40:04.694 INFO [stderr] 22 |     pub fn push(&mut self, elem: i32) {
Nov 16 13:40:04.694 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.694 INFO [stderr] 
Nov 16 13:40:04.694 INFO [stderr] warning: method is never used: `pop`
Nov 16 13:40:04.694 INFO [stderr]   --> src/first.rs:31:5
Nov 16 13:40:04.695 INFO [stderr]    |
Nov 16 13:40:04.695 INFO [stderr] 31 |     pub fn pop(&mut self) -> Option<i32> {
Nov 16 13:40:04.695 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.695 INFO [stderr] 
Nov 16 13:40:04.695 INFO [stderr] warning: type alias is never used: `Link`
Nov 16 13:40:04.695 INFO [stderr]  --> src/second.rs:7:1
Nov 16 13:40:04.695 INFO [stderr]   |
Nov 16 13:40:04.695 INFO [stderr] 7 | type Link<T> = Option<Box<Node<T>>>;
Nov 16 13:40:04.695 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.695 INFO [stderr] 
Nov 16 13:40:04.697 INFO [stderr] warning: struct is never constructed: `Node`
Nov 16 13:40:04.697 INFO [stderr]  --> src/second.rs:9:1
Nov 16 13:40:04.697 INFO [stderr]   |
Nov 16 13:40:04.697 INFO [stderr] 9 | struct Node<T> {
Nov 16 13:40:04.697 INFO [stderr]   | ^^^^^^^^^^^^^^
Nov 16 13:40:04.697 INFO [stderr] 
Nov 16 13:40:04.697 INFO [stderr] warning: method is never used: `new`
Nov 16 13:40:04.697 INFO [stderr]   --> src/second.rs:15:5
Nov 16 13:40:04.697 INFO [stderr]    |
Nov 16 13:40:04.697 INFO [stderr] 15 |     pub fn new() -> Self {
Nov 16 13:40:04.697 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.697 INFO [stderr] 
Nov 16 13:40:04.697 INFO [stderr] warning: method is never used: `push`
Nov 16 13:40:04.698 INFO [stderr]   --> src/second.rs:19:5
Nov 16 13:40:04.698 INFO [stderr]    |
Nov 16 13:40:04.698 INFO [stderr] 19 |     pub fn push(&mut self, elem: T) {
Nov 16 13:40:04.698 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.698 INFO [stderr] 
Nov 16 13:40:04.698 INFO [stderr] warning: method is never used: `peek`
Nov 16 13:40:04.698 INFO [stderr]   --> src/second.rs:37:5
Nov 16 13:40:04.698 INFO [stderr]    |
Nov 16 13:40:04.698 INFO [stderr] 37 |     pub fn peek(&self) -> Option<&T> {
Nov 16 13:40:04.698 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.698 INFO [stderr] 
Nov 16 13:40:04.698 INFO [stderr] warning: method is never used: `peek_mut`
Nov 16 13:40:04.698 INFO [stderr]   --> src/second.rs:43:5
Nov 16 13:40:04.698 INFO [stderr]    |
Nov 16 13:40:04.698 INFO [stderr] 43 |     pub fn peek_mut(&mut self) -> Option<&mut T> {
Nov 16 13:40:04.698 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.698 INFO [stderr] 
Nov 16 13:40:04.698 INFO [stderr] warning: struct is never constructed: `IntoIter`
Nov 16 13:40:04.698 INFO [stderr]   --> src/second.rs:60:1
Nov 16 13:40:04.698 INFO [stderr]    |
Nov 16 13:40:04.698 INFO [stderr] 60 | pub struct IntoIter<T>(List<T>);
Nov 16 13:40:04.698 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.698 INFO [stderr] 
Nov 16 13:40:04.699 INFO [stderr] warning: method is never used: `into_iter`
Nov 16 13:40:04.699 INFO [stderr]   --> src/second.rs:63:5
Nov 16 13:40:04.699 INFO [stderr]    |
Nov 16 13:40:04.699 INFO [stderr] 63 |     pub fn into_iter(self) -> IntoIter<T> {
Nov 16 13:40:04.699 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.699 INFO [stderr] 
Nov 16 13:40:04.699 INFO [stderr] warning: struct is never constructed: `Iter`
Nov 16 13:40:04.699 INFO [stderr]   --> src/second.rs:76:1
Nov 16 13:40:04.699 INFO [stderr]    |
Nov 16 13:40:04.699 INFO [stderr] 76 | pub struct Iter<'a, T: 'a> {
Nov 16 13:40:04.699 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.699 INFO [stderr] 
Nov 16 13:40:04.699 INFO [stderr] warning: method is never used: `iter`
Nov 16 13:40:04.699 INFO [stderr]   --> src/second.rs:81:5
Nov 16 13:40:04.699 INFO [stderr]    |
Nov 16 13:40:04.699 INFO [stderr] 81 |     pub fn iter<'a>(&'a self) -> Iter<'a, T> {
Nov 16 13:40:04.699 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.699 INFO [stderr] 
Nov 16 13:40:04.699 INFO [stderr] warning: struct is never constructed: `Tree`
Nov 16 13:40:04.699 INFO [stderr]  --> src/treeee.rs:1:1
Nov 16 13:40:04.699 INFO [stderr]   |
Nov 16 13:40:04.699 INFO [stderr] 1 | pub struct Tree<'a> {
Nov 16 13:40:04.699 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.700 INFO [stderr] 
Nov 16 13:40:04.700 INFO [stderr] warning: type alias is never used: `Link`
Nov 16 13:40:04.700 INFO [stderr]  --> src/treeee.rs:5:1
Nov 16 13:40:04.700 INFO [stderr]   |
Nov 16 13:40:04.700 INFO [stderr] 5 | type Link<'a> = Option<Box<Node<'a>>>;
Nov 16 13:40:04.700 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.700 INFO [stderr] 
Nov 16 13:40:04.700 INFO [stderr] warning: struct is never constructed: `Node`
Nov 16 13:40:04.700 INFO [stderr]  --> src/treeee.rs:7:1
Nov 16 13:40:04.700 INFO [stderr]   |
Nov 16 13:40:04.700 INFO [stderr] 7 | struct Node<'a> {
Nov 16 13:40:04.700 INFO [stderr]   | ^^^^^^^^^^^^^^^
Nov 16 13:40:04.700 INFO [stderr] 
Nov 16 13:40:04.700 INFO [stderr] warning: method is never used: `new`
Nov 16 13:40:04.700 INFO [stderr]   --> src/treeee.rs:14:5
Nov 16 13:40:04.700 INFO [stderr]    |
Nov 16 13:40:04.700 INFO [stderr] 14 |     pub fn new() -> Self {
Nov 16 13:40:04.700 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.700 INFO [stderr] 
Nov 16 13:40:04.700 INFO [stderr] warning: method is never used: `add`
Nov 16 13:40:04.700 INFO [stderr]   --> src/treeee.rs:18:5
Nov 16 13:40:04.700 INFO [stderr]    |
Nov 16 13:40:04.700 INFO [stderr] 18 |     pub fn add(&mut self, value: &'a str) {
Nov 16 13:40:04.700 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.701 INFO [stderr] 
Nov 16 13:40:04.701 INFO [stderr] warning: method is never used: `display`
Nov 16 13:40:04.701 INFO [stderr]   --> src/treeee.rs:31:5
Nov 16 13:40:04.701 INFO [stderr]    |
Nov 16 13:40:04.701 INFO [stderr] 31 |     pub fn display(&self) {
Nov 16 13:40:04.701 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.701 INFO [stderr] 
Nov 16 13:40:04.701 INFO [stderr] warning: method is never used: `insert`
Nov 16 13:40:04.701 INFO [stderr]   --> src/treeee.rs:35:5
Nov 16 13:40:04.701 INFO [stderr]    |
Nov 16 13:40:04.701 INFO [stderr] 35 |     fn insert(head: &mut Node<'a>, new_node : Box<Node<'a>>) {
Nov 16 13:40:04.701 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.701 INFO [stderr] 
Nov 16 13:40:04.701 INFO [stderr] warning: method is never used: `display_node`
Nov 16 13:40:04.701 INFO [stderr]   --> src/treeee.rs:49:5
Nov 16 13:40:04.701 INFO [stderr]    |
Nov 16 13:40:04.701 INFO [stderr] 49 |     fn display_node(node : &Node, depth: i32) {
Nov 16 13:40:04.701 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.701 INFO [stderr] 
Nov 16 13:40:04.701 INFO [stderr] warning: struct is never constructed: `Collection`
Nov 16 13:40:04.701 INFO [stderr]  --> src/four.rs:3:1
Nov 16 13:40:04.701 INFO [stderr]   |
Nov 16 13:40:04.701 INFO [stderr] 3 | struct Collection<'a> {
Nov 16 13:40:04.701 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.702 INFO [stderr] 
Nov 16 13:40:04.702 INFO [stderr] warning: struct is never constructed: `Elem`
Nov 16 13:40:04.702 INFO [stderr]  --> src/four.rs:8:1
Nov 16 13:40:04.702 INFO [stderr]   |
Nov 16 13:40:04.702 INFO [stderr] 8 | struct Elem<'a> {
Nov 16 13:40:04.702 INFO [stderr]   | ^^^^^^^^^^^^^^^
Nov 16 13:40:04.702 INFO [stderr] 
Nov 16 13:40:04.702 INFO [stderr] warning: function is never used: `insert`
Nov 16 13:40:04.702 INFO [stderr]   --> src/four.rs:12:1
Nov 16 13:40:04.702 INFO [stderr]    |
Nov 16 13:40:04.702 INFO [stderr] 12 | fn insert<'a>(c : &mut Collection<'a>, e : Box<Elem<'a>>) {
Nov 16 13:40:04.702 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.702 INFO [stderr] 
Nov 16 13:40:04.702 INFO [stderr] warning: function is never used: `a`
Nov 16 13:40:04.702 INFO [stderr]   --> src/four.rs:17:1
Nov 16 13:40:04.702 INFO [stderr]    |
Nov 16 13:40:04.702 INFO [stderr] 17 | fn a<'a>() -> Collection<'a> {
Nov 16 13:40:04.702 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:04.702 INFO [stderr] 
Nov 16 13:40:05.011 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
Nov 16 13:40:05.020 INFO [stderr] su: No module specific data is present
Nov 16 13:40:05.633 INFO running `"docker" "inspect" "f0eade8e2e338594679239f2456f9892e6883efab6245e7bc037dedcc946ccbd"`
Nov 16 13:40:05.907 INFO running `"docker" "rm" "-f" "f0eade8e2e338594679239f2456f9892e6883efab6245e7bc037dedcc946ccbd"`
Nov 16 13:40:06.171 INFO [stdout] f0eade8e2e338594679239f2456f9892e6883efab6245e7bc037dedcc946ccbd
Nov 16 13:40:06.177 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt test --frozen --no-run" "-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 16 13:40:06.572 INFO [stdout] ee5d60559381156fcfbca4e2e45af6a4657c28293aa6a86b09e0eb56d65bcd03
Nov 16 13:40:06.575 INFO running `"docker" "start" "-a" "ee5d60559381156fcfbca4e2e45af6a4657c28293aa6a86b09e0eb56d65bcd03"`
Nov 16 13:40:07.935 INFO [stderr] usermod: no changes
Nov 16 13:40:08.004 INFO [stderr]    Compiling rust-too-many-lists v0.1.0 (/source)
Nov 16 13:40:09.157 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
Nov 16 13:40:09.160 INFO [stderr] su: No module specific data is present
Nov 16 13:40:09.744 INFO running `"docker" "inspect" "ee5d60559381156fcfbca4e2e45af6a4657c28293aa6a86b09e0eb56d65bcd03"`
Nov 16 13:40:10.103 INFO running `"docker" "rm" "-f" "ee5d60559381156fcfbca4e2e45af6a4657c28293aa6a86b09e0eb56d65bcd03"`
Nov 16 13:40:10.391 INFO [stdout] ee5d60559381156fcfbca4e2e45af6a4657c28293aa6a86b09e0eb56d65bcd03
Nov 16 13:40:10.393 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt test --frozen" "-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 16 13:40:10.860 INFO [stdout] 11ee58a364e3e7b0d81eb9d13c93c632b766ffcbc39b41b114b305e87b2cf2de
Nov 16 13:40:10.863 INFO running `"docker" "start" "-a" "11ee58a364e3e7b0d81eb9d13c93c632b766ffcbc39b41b114b305e87b2cf2de"`
Nov 16 13:40:12.566 INFO [stderr] usermod: no changes
Nov 16 13:40:12.616 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Nov 16 13:40:12.619 INFO [stderr]      Running /target/debug/deps/rust_too_many_lists-6c985c70a6890dfa
Nov 16 13:40:12.623 INFO [stdout] 
Nov 16 13:40:12.623 INFO [stdout] running 8 tests
Nov 16 13:40:12.623 INFO [stdout] test four::a_test ... ok
Nov 16 13:40:12.623 INFO [stdout] test first::test::basics ... ok
Nov 16 13:40:12.623 INFO [stdout] test second::test::into_iter_test ... ok
Nov 16 13:40:12.623 INFO [stdout] test second::test::iter ... ok
Nov 16 13:40:12.623 INFO [stdout] test second::test::peek_mut_test ... ok
Nov 16 13:40:12.623 INFO [stdout] test second::test::basics ... ok
Nov 16 13:40:12.623 INFO [stdout] test treeee::test::treeee_test ... ok
Nov 16 13:40:12.623 INFO [stdout] test second::test::peek_test ... ok
Nov 16 13:40:12.623 INFO [stdout] 
Nov 16 13:40:12.623 INFO [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 16 13:40:12.623 INFO [stdout] 
Nov 16 13:40:12.629 INFO [stderr] su: No module specific data is present
Nov 16 13:40:13.209 INFO running `"docker" "inspect" "11ee58a364e3e7b0d81eb9d13c93c632b766ffcbc39b41b114b305e87b2cf2de"`
Nov 16 13:40:13.499 INFO running `"docker" "rm" "-f" "11ee58a364e3e7b0d81eb9d13c93c632b766ffcbc39b41b114b305e87b2cf2de"`
Nov 16 13:40:13.761 INFO [stdout] 11ee58a364e3e7b0d81eb9d13c93c632b766ffcbc39b41b114b305e87b2cf2de