Dec 13 03:31:13.056 INFO testing shiroyasha/rust-too-many-lists against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 13 03:31:13.056 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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"`
Dec 13 03:31:13.451 INFO [stdout] 917ccb527e43320c9611691cd0d75b77547e008cc2ede06718c0447949820625
Dec 13 03:31:13.457 INFO running `"docker" "start" "-a" "917ccb527e43320c9611691cd0d75b77547e008cc2ede06718c0447949820625"`
Dec 13 03:31:14.655 INFO [stderr] usermod: no changes
Dec 13 03:31:14.731 INFO [stderr]    Compiling rust-too-many-lists v0.1.0 (/source)
Dec 13 03:31:15.131 INFO [stderr] warning: struct is never constructed: `List`
Dec 13 03:31:15.131 INFO [stderr]  --> src/first.rs:3:1
Dec 13 03:31:15.131 INFO [stderr]   |
Dec 13 03:31:15.131 INFO [stderr] 3 | pub struct List {
Dec 13 03:31:15.131 INFO [stderr]   | ^^^^^^^^^^^^^^^
Dec 13 03:31:15.131 INFO [stderr]   |
Dec 13 03:31:15.131 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 13 03:31:15.131 INFO [stderr] 
Dec 13 03:31:15.131 INFO [stderr] warning: variant is never constructed: `More`
Dec 13 03:31:15.131 INFO [stderr]  --> src/first.rs:9:5
Dec 13 03:31:15.131 INFO [stderr]   |
Dec 13 03:31:15.131 INFO [stderr] 9 |     More(Box<Node>),
Dec 13 03:31:15.131 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 13 03:31:15.131 INFO [stderr] 
Dec 13 03:31:15.131 INFO [stderr] warning: field is never used: `elem`
Dec 13 03:31:15.131 INFO [stderr]   --> src/first.rs:13:5
Dec 13 03:31:15.131 INFO [stderr]    |
Dec 13 03:31:15.131 INFO [stderr] 13 |     elem: i32,
Dec 13 03:31:15.131 INFO [stderr]    |     ^^^^^^^^^
Dec 13 03:31:15.131 INFO [stderr] 
Dec 13 03:31:15.131 INFO [stderr] warning: method is never used: `new`
Dec 13 03:31:15.131 INFO [stderr]   --> src/first.rs:18:5
Dec 13 03:31:15.131 INFO [stderr]    |
Dec 13 03:31:15.131 INFO [stderr] 18 |     pub fn new() -> Self {
Dec 13 03:31:15.132 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.132 INFO [stderr] 
Dec 13 03:31:15.132 INFO [stderr] warning: method is never used: `push`
Dec 13 03:31:15.132 INFO [stderr]   --> src/first.rs:22:5
Dec 13 03:31:15.132 INFO [stderr]    |
Dec 13 03:31:15.132 INFO [stderr] 22 |     pub fn push(&mut self, elem: i32) {
Dec 13 03:31:15.132 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.132 INFO [stderr] 
Dec 13 03:31:15.132 INFO [stderr] warning: method is never used: `pop`
Dec 13 03:31:15.132 INFO [stderr]   --> src/first.rs:31:5
Dec 13 03:31:15.132 INFO [stderr]    |
Dec 13 03:31:15.132 INFO [stderr] 31 |     pub fn pop(&mut self) -> Option<i32> {
Dec 13 03:31:15.132 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.132 INFO [stderr] 
Dec 13 03:31:15.132 INFO [stderr] warning: type alias is never used: `Link`
Dec 13 03:31:15.132 INFO [stderr]  --> src/second.rs:7:1
Dec 13 03:31:15.132 INFO [stderr]   |
Dec 13 03:31:15.132 INFO [stderr] 7 | type Link<T> = Option<Box<Node<T>>>;
Dec 13 03:31:15.132 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.132 INFO [stderr] 
Dec 13 03:31:15.132 INFO [stderr] warning: struct is never constructed: `Node`
Dec 13 03:31:15.132 INFO [stderr]  --> src/second.rs:9:1
Dec 13 03:31:15.132 INFO [stderr]   |
Dec 13 03:31:15.132 INFO [stderr] 9 | struct Node<T> {
Dec 13 03:31:15.132 INFO [stderr]   | ^^^^^^^^^^^^^^
Dec 13 03:31:15.132 INFO [stderr] 
Dec 13 03:31:15.132 INFO [stderr] warning: method is never used: `new`
Dec 13 03:31:15.132 INFO [stderr]   --> src/second.rs:15:5
Dec 13 03:31:15.132 INFO [stderr]    |
Dec 13 03:31:15.132 INFO [stderr] 15 |     pub fn new() -> Self {
Dec 13 03:31:15.132 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.132 INFO [stderr] 
Dec 13 03:31:15.132 INFO [stderr] warning: method is never used: `push`
Dec 13 03:31:15.132 INFO [stderr]   --> src/second.rs:19:5
Dec 13 03:31:15.132 INFO [stderr]    |
Dec 13 03:31:15.132 INFO [stderr] 19 |     pub fn push(&mut self, elem: T) {
Dec 13 03:31:15.132 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.132 INFO [stderr] 
Dec 13 03:31:15.132 INFO [stderr] warning: method is never used: `peek`
Dec 13 03:31:15.132 INFO [stderr]   --> src/second.rs:37:5
Dec 13 03:31:15.132 INFO [stderr]    |
Dec 13 03:31:15.132 INFO [stderr] 37 |     pub fn peek(&self) -> Option<&T> {
Dec 13 03:31:15.132 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.132 INFO [stderr] 
Dec 13 03:31:15.132 INFO [stderr] warning: method is never used: `peek_mut`
Dec 13 03:31:15.132 INFO [stderr]   --> src/second.rs:43:5
Dec 13 03:31:15.132 INFO [stderr]    |
Dec 13 03:31:15.132 INFO [stderr] 43 |     pub fn peek_mut(&mut self) -> Option<&mut T> {
Dec 13 03:31:15.132 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.132 INFO [stderr] 
Dec 13 03:31:15.132 INFO [stderr] warning: struct is never constructed: `IntoIter`
Dec 13 03:31:15.132 INFO [stderr]   --> src/second.rs:60:1
Dec 13 03:31:15.132 INFO [stderr]    |
Dec 13 03:31:15.132 INFO [stderr] 60 | pub struct IntoIter<T>(List<T>);
Dec 13 03:31:15.132 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.132 INFO [stderr] 
Dec 13 03:31:15.132 INFO [stderr] warning: method is never used: `into_iter`
Dec 13 03:31:15.132 INFO [stderr]   --> src/second.rs:63:5
Dec 13 03:31:15.132 INFO [stderr]    |
Dec 13 03:31:15.132 INFO [stderr] 63 |     pub fn into_iter(self) -> IntoIter<T> {
Dec 13 03:31:15.132 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.132 INFO [stderr] 
Dec 13 03:31:15.132 INFO [stderr] warning: struct is never constructed: `Iter`
Dec 13 03:31:15.132 INFO [stderr]   --> src/second.rs:76:1
Dec 13 03:31:15.132 INFO [stderr]    |
Dec 13 03:31:15.132 INFO [stderr] 76 | pub struct Iter<'a, T: 'a> {
Dec 13 03:31:15.132 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.132 INFO [stderr] 
Dec 13 03:31:15.132 INFO [stderr] warning: method is never used: `iter`
Dec 13 03:31:15.132 INFO [stderr]   --> src/second.rs:81:5
Dec 13 03:31:15.132 INFO [stderr]    |
Dec 13 03:31:15.132 INFO [stderr] 81 |     pub fn iter<'a>(&'a self) -> Iter<'a, T> {
Dec 13 03:31:15.132 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.132 INFO [stderr] 
Dec 13 03:31:15.132 INFO [stderr] warning: struct is never constructed: `Tree`
Dec 13 03:31:15.132 INFO [stderr]  --> src/treeee.rs:1:1
Dec 13 03:31:15.132 INFO [stderr]   |
Dec 13 03:31:15.132 INFO [stderr] 1 | pub struct Tree<'a> {
Dec 13 03:31:15.132 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.132 INFO [stderr] 
Dec 13 03:31:15.132 INFO [stderr] warning: type alias is never used: `Link`
Dec 13 03:31:15.132 INFO [stderr]  --> src/treeee.rs:5:1
Dec 13 03:31:15.132 INFO [stderr]   |
Dec 13 03:31:15.132 INFO [stderr] 5 | type Link<'a> = Option<Box<Node<'a>>>;
Dec 13 03:31:15.132 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.132 INFO [stderr] 
Dec 13 03:31:15.133 INFO [stderr] warning: struct is never constructed: `Node`
Dec 13 03:31:15.133 INFO [stderr]  --> src/treeee.rs:7:1
Dec 13 03:31:15.133 INFO [stderr]   |
Dec 13 03:31:15.133 INFO [stderr] 7 | struct Node<'a> {
Dec 13 03:31:15.133 INFO [stderr]   | ^^^^^^^^^^^^^^^
Dec 13 03:31:15.133 INFO [stderr] 
Dec 13 03:31:15.133 INFO [stderr] warning: method is never used: `new`
Dec 13 03:31:15.133 INFO [stderr]   --> src/treeee.rs:14:5
Dec 13 03:31:15.133 INFO [stderr]    |
Dec 13 03:31:15.133 INFO [stderr] 14 |     pub fn new() -> Self {
Dec 13 03:31:15.133 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.133 INFO [stderr] 
Dec 13 03:31:15.133 INFO [stderr] warning: method is never used: `add`
Dec 13 03:31:15.133 INFO [stderr]   --> src/treeee.rs:18:5
Dec 13 03:31:15.133 INFO [stderr]    |
Dec 13 03:31:15.133 INFO [stderr] 18 |     pub fn add(&mut self, value: &'a str) {
Dec 13 03:31:15.133 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.133 INFO [stderr] 
Dec 13 03:31:15.133 INFO [stderr] warning: method is never used: `display`
Dec 13 03:31:15.133 INFO [stderr]   --> src/treeee.rs:31:5
Dec 13 03:31:15.133 INFO [stderr]    |
Dec 13 03:31:15.133 INFO [stderr] 31 |     pub fn display(&self) {
Dec 13 03:31:15.133 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.133 INFO [stderr] 
Dec 13 03:31:15.133 INFO [stderr] warning: method is never used: `insert`
Dec 13 03:31:15.133 INFO [stderr]   --> src/treeee.rs:35:5
Dec 13 03:31:15.133 INFO [stderr]    |
Dec 13 03:31:15.133 INFO [stderr] 35 |     fn insert(head: &mut Node<'a>, new_node : Box<Node<'a>>) {
Dec 13 03:31:15.133 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.133 INFO [stderr] 
Dec 13 03:31:15.133 INFO [stderr] warning: method is never used: `display_node`
Dec 13 03:31:15.133 INFO [stderr]   --> src/treeee.rs:49:5
Dec 13 03:31:15.133 INFO [stderr]    |
Dec 13 03:31:15.133 INFO [stderr] 49 |     fn display_node(node : &Node, depth: i32) {
Dec 13 03:31:15.133 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.133 INFO [stderr] 
Dec 13 03:31:15.133 INFO [stderr] warning: struct is never constructed: `Collection`
Dec 13 03:31:15.133 INFO [stderr]  --> src/four.rs:3:1
Dec 13 03:31:15.133 INFO [stderr]   |
Dec 13 03:31:15.133 INFO [stderr] 3 | struct Collection<'a> {
Dec 13 03:31:15.133 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.133 INFO [stderr] 
Dec 13 03:31:15.133 INFO [stderr] warning: struct is never constructed: `Elem`
Dec 13 03:31:15.133 INFO [stderr]  --> src/four.rs:8:1
Dec 13 03:31:15.133 INFO [stderr]   |
Dec 13 03:31:15.133 INFO [stderr] 8 | struct Elem<'a> {
Dec 13 03:31:15.133 INFO [stderr]   | ^^^^^^^^^^^^^^^
Dec 13 03:31:15.133 INFO [stderr] 
Dec 13 03:31:15.133 INFO [stderr] warning: function is never used: `insert`
Dec 13 03:31:15.133 INFO [stderr]   --> src/four.rs:12:1
Dec 13 03:31:15.133 INFO [stderr]    |
Dec 13 03:31:15.133 INFO [stderr] 12 | fn insert<'a>(c : &mut Collection<'a>, e : Box<Elem<'a>>) {
Dec 13 03:31:15.133 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.133 INFO [stderr] 
Dec 13 03:31:15.133 INFO [stderr] warning: function is never used: `a`
Dec 13 03:31:15.133 INFO [stderr]   --> src/four.rs:17:1
Dec 13 03:31:15.133 INFO [stderr]    |
Dec 13 03:31:15.133 INFO [stderr] 17 | fn a<'a>() -> Collection<'a> {
Dec 13 03:31:15.133 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:31:15.133 INFO [stderr] 
Dec 13 03:31:15.438 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
Dec 13 03:31:15.440 INFO [stderr] su: No module specific data is present
Dec 13 03:31:15.925 INFO running `"docker" "inspect" "917ccb527e43320c9611691cd0d75b77547e008cc2ede06718c0447949820625"`
Dec 13 03:31:16.167 INFO running `"docker" "rm" "-f" "917ccb527e43320c9611691cd0d75b77547e008cc2ede06718c0447949820625"`
Dec 13 03:31:16.503 INFO [stdout] 917ccb527e43320c9611691cd0d75b77547e008cc2ede06718c0447949820625
Dec 13 03:31:16.508 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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"`
Dec 13 03:31:16.870 INFO [stdout] 6f00d86aa887511a884ef345abc0eae878fbdd8edeea2a1ef502263af43f8579
Dec 13 03:31:16.881 INFO running `"docker" "start" "-a" "6f00d86aa887511a884ef345abc0eae878fbdd8edeea2a1ef502263af43f8579"`
Dec 13 03:31:18.073 INFO [stderr] usermod: no changes
Dec 13 03:31:18.127 INFO [stderr]    Compiling rust-too-many-lists v0.1.0 (/source)
Dec 13 03:31:19.159 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
Dec 13 03:31:19.248 INFO [stderr] su: No module specific data is present
Dec 13 03:31:19.936 INFO running `"docker" "inspect" "6f00d86aa887511a884ef345abc0eae878fbdd8edeea2a1ef502263af43f8579"`
Dec 13 03:31:20.299 INFO running `"docker" "rm" "-f" "6f00d86aa887511a884ef345abc0eae878fbdd8edeea2a1ef502263af43f8579"`
Dec 13 03:31:20.550 INFO [stdout] 6f00d86aa887511a884ef345abc0eae878fbdd8edeea2a1ef502263af43f8579
Dec 13 03:31:20.559 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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"`
Dec 13 03:31:20.939 INFO [stdout] b8a69f22cdb9b7636ebd3f607a9a555d0d7778e190e3531c3d7379c89b2d1f52
Dec 13 03:31:20.947 INFO running `"docker" "start" "-a" "b8a69f22cdb9b7636ebd3f607a9a555d0d7778e190e3531c3d7379c89b2d1f52"`
Dec 13 03:31:22.723 INFO [stderr] usermod: no changes
Dec 13 03:31:22.791 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 13 03:31:22.797 INFO [stderr]      Running /target/debug/deps/rust_too_many_lists-4cec7ed6d278dfc3
Dec 13 03:31:22.815 INFO [stdout] 
Dec 13 03:31:22.815 INFO [stdout] running 8 tests
Dec 13 03:31:22.815 INFO [stdout] test second::test::iter ... ok
Dec 13 03:31:22.815 INFO [stdout] test second::test::basics ... ok
Dec 13 03:31:22.815 INFO [stdout] test first::test::basics ... ok
Dec 13 03:31:22.815 INFO [stdout] test second::test::peek_test ... ok
Dec 13 03:31:22.815 INFO [stdout] test treeee::test::treeee_test ... ok
Dec 13 03:31:22.815 INFO [stdout] test second::test::into_iter_test ... ok
Dec 13 03:31:22.823 INFO [stdout] test four::a_test ... ok
Dec 13 03:31:22.823 INFO [stderr] su: No module specific data is present
Dec 13 03:31:22.823 INFO [stdout] test second::test::peek_mut_test ... ok
Dec 13 03:31:22.823 INFO [stdout] 
Dec 13 03:31:22.823 INFO [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 03:31:22.823 INFO [stdout] 
Dec 13 03:31:23.627 INFO running `"docker" "inspect" "b8a69f22cdb9b7636ebd3f607a9a555d0d7778e190e3531c3d7379c89b2d1f52"`
Dec 13 03:31:23.993 INFO running `"docker" "rm" "-f" "b8a69f22cdb9b7636ebd3f607a9a555d0d7778e190e3531c3d7379c89b2d1f52"`
Dec 13 03:31:24.371 INFO [stdout] b8a69f22cdb9b7636ebd3f607a9a555d0d7778e190e3531c3d7379c89b2d1f52