Dec 05 07:40:05.517 INFO testing shiroyasha/rust-too-many-lists against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 05 07:40:05.518 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 05 07:40:05.912 INFO [stdout] 7fcf674c7b36644ec7e677b96c7ecd3b466aa307abd4697f017623f65a50dd26
Dec 05 07:40:05.914 INFO running `"docker" "start" "-a" "7fcf674c7b36644ec7e677b96c7ecd3b466aa307abd4697f017623f65a50dd26"`
Dec 05 07:40:06.878 INFO [stderr] usermod: no changes
Dec 05 07:40:06.936 INFO [stderr]    Compiling rust-too-many-lists v0.1.0 (/source)
Dec 05 07:40:07.184 INFO [stderr] warning: struct is never constructed: `List`
Dec 05 07:40:07.184 INFO [stderr]  --> src/first.rs:3:1
Dec 05 07:40:07.184 INFO [stderr]   |
Dec 05 07:40:07.184 INFO [stderr] 3 | pub struct List {
Dec 05 07:40:07.184 INFO [stderr]   | ^^^^^^^^^^^^^^^
Dec 05 07:40:07.184 INFO [stderr]   |
Dec 05 07:40:07.184 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 07:40:07.184 INFO [stderr] 
Dec 05 07:40:07.184 INFO [stderr] warning: variant is never constructed: `More`
Dec 05 07:40:07.184 INFO [stderr]  --> src/first.rs:9:5
Dec 05 07:40:07.184 INFO [stderr]   |
Dec 05 07:40:07.184 INFO [stderr] 9 |     More(Box<Node>),
Dec 05 07:40:07.184 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 05 07:40:07.184 INFO [stderr] 
Dec 05 07:40:07.184 INFO [stderr] warning: field is never used: `elem`
Dec 05 07:40:07.184 INFO [stderr]   --> src/first.rs:13:5
Dec 05 07:40:07.184 INFO [stderr]    |
Dec 05 07:40:07.184 INFO [stderr] 13 |     elem: i32,
Dec 05 07:40:07.184 INFO [stderr]    |     ^^^^^^^^^
Dec 05 07:40:07.184 INFO [stderr] 
Dec 05 07:40:07.184 INFO [stderr] warning: method is never used: `new`
Dec 05 07:40:07.184 INFO [stderr]   --> src/first.rs:18:5
Dec 05 07:40:07.184 INFO [stderr]    |
Dec 05 07:40:07.184 INFO [stderr] 18 |     pub fn new() -> Self {
Dec 05 07:40:07.184 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.184 INFO [stderr] 
Dec 05 07:40:07.184 INFO [stderr] warning: method is never used: `push`
Dec 05 07:40:07.184 INFO [stderr]   --> src/first.rs:22:5
Dec 05 07:40:07.184 INFO [stderr]    |
Dec 05 07:40:07.184 INFO [stderr] 22 |     pub fn push(&mut self, elem: i32) {
Dec 05 07:40:07.184 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.184 INFO [stderr] 
Dec 05 07:40:07.184 INFO [stderr] warning: method is never used: `pop`
Dec 05 07:40:07.184 INFO [stderr]   --> src/first.rs:31:5
Dec 05 07:40:07.184 INFO [stderr]    |
Dec 05 07:40:07.184 INFO [stderr] 31 |     pub fn pop(&mut self) -> Option<i32> {
Dec 05 07:40:07.184 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.184 INFO [stderr] 
Dec 05 07:40:07.184 INFO [stderr] warning: type alias is never used: `Link`
Dec 05 07:40:07.184 INFO [stderr]  --> src/second.rs:7:1
Dec 05 07:40:07.184 INFO [stderr]   |
Dec 05 07:40:07.184 INFO [stderr] 7 | type Link<T> = Option<Box<Node<T>>>;
Dec 05 07:40:07.184 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.184 INFO [stderr] 
Dec 05 07:40:07.184 INFO [stderr] warning: struct is never constructed: `Node`
Dec 05 07:40:07.184 INFO [stderr]  --> src/second.rs:9:1
Dec 05 07:40:07.184 INFO [stderr]   |
Dec 05 07:40:07.184 INFO [stderr] 9 | struct Node<T> {
Dec 05 07:40:07.185 INFO [stderr]   | ^^^^^^^^^^^^^^
Dec 05 07:40:07.185 INFO [stderr] 
Dec 05 07:40:07.185 INFO [stderr] warning: method is never used: `new`
Dec 05 07:40:07.185 INFO [stderr]   --> src/second.rs:15:5
Dec 05 07:40:07.185 INFO [stderr]    |
Dec 05 07:40:07.185 INFO [stderr] 15 |     pub fn new() -> Self {
Dec 05 07:40:07.185 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.185 INFO [stderr] 
Dec 05 07:40:07.185 INFO [stderr] warning: method is never used: `push`
Dec 05 07:40:07.185 INFO [stderr]   --> src/second.rs:19:5
Dec 05 07:40:07.185 INFO [stderr]    |
Dec 05 07:40:07.185 INFO [stderr] 19 |     pub fn push(&mut self, elem: T) {
Dec 05 07:40:07.185 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.185 INFO [stderr] 
Dec 05 07:40:07.185 INFO [stderr] warning: method is never used: `peek`
Dec 05 07:40:07.185 INFO [stderr]   --> src/second.rs:37:5
Dec 05 07:40:07.185 INFO [stderr]    |
Dec 05 07:40:07.185 INFO [stderr] 37 |     pub fn peek(&self) -> Option<&T> {
Dec 05 07:40:07.185 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.185 INFO [stderr] 
Dec 05 07:40:07.185 INFO [stderr] warning: method is never used: `peek_mut`
Dec 05 07:40:07.185 INFO [stderr]   --> src/second.rs:43:5
Dec 05 07:40:07.185 INFO [stderr]    |
Dec 05 07:40:07.185 INFO [stderr] 43 |     pub fn peek_mut(&mut self) -> Option<&mut T> {
Dec 05 07:40:07.185 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.185 INFO [stderr] 
Dec 05 07:40:07.185 INFO [stderr] warning: struct is never constructed: `IntoIter`
Dec 05 07:40:07.185 INFO [stderr]   --> src/second.rs:60:1
Dec 05 07:40:07.185 INFO [stderr]    |
Dec 05 07:40:07.185 INFO [stderr] 60 | pub struct IntoIter<T>(List<T>);
Dec 05 07:40:07.185 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.185 INFO [stderr] 
Dec 05 07:40:07.185 INFO [stderr] warning: method is never used: `into_iter`
Dec 05 07:40:07.185 INFO [stderr]   --> src/second.rs:63:5
Dec 05 07:40:07.185 INFO [stderr]    |
Dec 05 07:40:07.185 INFO [stderr] 63 |     pub fn into_iter(self) -> IntoIter<T> {
Dec 05 07:40:07.185 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.185 INFO [stderr] 
Dec 05 07:40:07.185 INFO [stderr] warning: struct is never constructed: `Iter`
Dec 05 07:40:07.185 INFO [stderr]   --> src/second.rs:76:1
Dec 05 07:40:07.185 INFO [stderr]    |
Dec 05 07:40:07.185 INFO [stderr] 76 | pub struct Iter<'a, T: 'a> {
Dec 05 07:40:07.185 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.185 INFO [stderr] 
Dec 05 07:40:07.185 INFO [stderr] warning: method is never used: `iter`
Dec 05 07:40:07.185 INFO [stderr]   --> src/second.rs:81:5
Dec 05 07:40:07.185 INFO [stderr]    |
Dec 05 07:40:07.185 INFO [stderr] 81 |     pub fn iter<'a>(&'a self) -> Iter<'a, T> {
Dec 05 07:40:07.185 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.185 INFO [stderr] 
Dec 05 07:40:07.185 INFO [stderr] warning: struct is never constructed: `Tree`
Dec 05 07:40:07.185 INFO [stderr]  --> src/treeee.rs:1:1
Dec 05 07:40:07.185 INFO [stderr]   |
Dec 05 07:40:07.185 INFO [stderr] 1 | pub struct Tree<'a> {
Dec 05 07:40:07.185 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.185 INFO [stderr] 
Dec 05 07:40:07.185 INFO [stderr] warning: type alias is never used: `Link`
Dec 05 07:40:07.185 INFO [stderr]  --> src/treeee.rs:5:1
Dec 05 07:40:07.185 INFO [stderr]   |
Dec 05 07:40:07.185 INFO [stderr] 5 | type Link<'a> = Option<Box<Node<'a>>>;
Dec 05 07:40:07.185 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.185 INFO [stderr] 
Dec 05 07:40:07.185 INFO [stderr] warning: struct is never constructed: `Node`
Dec 05 07:40:07.185 INFO [stderr]  --> src/treeee.rs:7:1
Dec 05 07:40:07.185 INFO [stderr]   |
Dec 05 07:40:07.185 INFO [stderr] 7 | struct Node<'a> {
Dec 05 07:40:07.185 INFO [stderr]   | ^^^^^^^^^^^^^^^
Dec 05 07:40:07.185 INFO [stderr] 
Dec 05 07:40:07.185 INFO [stderr] warning: method is never used: `new`
Dec 05 07:40:07.185 INFO [stderr]   --> src/treeee.rs:14:5
Dec 05 07:40:07.185 INFO [stderr]    |
Dec 05 07:40:07.185 INFO [stderr] 14 |     pub fn new() -> Self {
Dec 05 07:40:07.185 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.185 INFO [stderr] 
Dec 05 07:40:07.185 INFO [stderr] warning: method is never used: `add`
Dec 05 07:40:07.185 INFO [stderr]   --> src/treeee.rs:18:5
Dec 05 07:40:07.185 INFO [stderr]    |
Dec 05 07:40:07.185 INFO [stderr] 18 |     pub fn add(&mut self, value: &'a str) {
Dec 05 07:40:07.185 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.185 INFO [stderr] 
Dec 05 07:40:07.185 INFO [stderr] warning: method is never used: `display`
Dec 05 07:40:07.185 INFO [stderr]   --> src/treeee.rs:31:5
Dec 05 07:40:07.185 INFO [stderr]    |
Dec 05 07:40:07.185 INFO [stderr] 31 |     pub fn display(&self) {
Dec 05 07:40:07.185 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.185 INFO [stderr] 
Dec 05 07:40:07.185 INFO [stderr] warning: method is never used: `insert`
Dec 05 07:40:07.185 INFO [stderr]   --> src/treeee.rs:35:5
Dec 05 07:40:07.185 INFO [stderr]    |
Dec 05 07:40:07.185 INFO [stderr] 35 |     fn insert(head: &mut Node<'a>, new_node : Box<Node<'a>>) {
Dec 05 07:40:07.185 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.186 INFO [stderr] 
Dec 05 07:40:07.186 INFO [stderr] warning: method is never used: `display_node`
Dec 05 07:40:07.186 INFO [stderr]   --> src/treeee.rs:49:5
Dec 05 07:40:07.186 INFO [stderr]    |
Dec 05 07:40:07.186 INFO [stderr] 49 |     fn display_node(node : &Node, depth: i32) {
Dec 05 07:40:07.186 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.186 INFO [stderr] 
Dec 05 07:40:07.186 INFO [stderr] warning: struct is never constructed: `Collection`
Dec 05 07:40:07.186 INFO [stderr]  --> src/four.rs:3:1
Dec 05 07:40:07.186 INFO [stderr]   |
Dec 05 07:40:07.186 INFO [stderr] 3 | struct Collection<'a> {
Dec 05 07:40:07.186 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.186 INFO [stderr] 
Dec 05 07:40:07.186 INFO [stderr] warning: struct is never constructed: `Elem`
Dec 05 07:40:07.186 INFO [stderr]  --> src/four.rs:8:1
Dec 05 07:40:07.186 INFO [stderr]   |
Dec 05 07:40:07.186 INFO [stderr] 8 | struct Elem<'a> {
Dec 05 07:40:07.186 INFO [stderr]   | ^^^^^^^^^^^^^^^
Dec 05 07:40:07.186 INFO [stderr] 
Dec 05 07:40:07.186 INFO [stderr] warning: function is never used: `insert`
Dec 05 07:40:07.186 INFO [stderr]   --> src/four.rs:12:1
Dec 05 07:40:07.186 INFO [stderr]    |
Dec 05 07:40:07.186 INFO [stderr] 12 | fn insert<'a>(c : &mut Collection<'a>, e : Box<Elem<'a>>) {
Dec 05 07:40:07.186 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.186 INFO [stderr] 
Dec 05 07:40:07.186 INFO [stderr] warning: function is never used: `a`
Dec 05 07:40:07.186 INFO [stderr]   --> src/four.rs:17:1
Dec 05 07:40:07.186 INFO [stderr]    |
Dec 05 07:40:07.186 INFO [stderr] 17 | fn a<'a>() -> Collection<'a> {
Dec 05 07:40:07.186 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:40:07.186 INFO [stderr] 
Dec 05 07:40:07.467 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
Dec 05 07:40:07.467 INFO [stderr] su: No module specific data is present
Dec 05 07:40:08.224 INFO running `"docker" "inspect" "7fcf674c7b36644ec7e677b96c7ecd3b466aa307abd4697f017623f65a50dd26"`
Dec 05 07:40:08.490 INFO running `"docker" "rm" "-f" "7fcf674c7b36644ec7e677b96c7ecd3b466aa307abd4697f017623f65a50dd26"`
Dec 05 07:40:08.720 INFO [stdout] 7fcf674c7b36644ec7e677b96c7ecd3b466aa307abd4697f017623f65a50dd26
Dec 05 07:40:08.725 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 05 07:40:09.072 INFO [stdout] 4aa9bff192be4e6a6e0c51f2d626e6646876e43b9d73e7f7e0824a759b952121
Dec 05 07:40:09.074 INFO running `"docker" "start" "-a" "4aa9bff192be4e6a6e0c51f2d626e6646876e43b9d73e7f7e0824a759b952121"`
Dec 05 07:40:10.180 INFO [stderr] usermod: no changes
Dec 05 07:40:10.244 INFO [stderr]    Compiling rust-too-many-lists v0.1.0 (/source)
Dec 05 07:40:11.380 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
Dec 05 07:40:11.380 INFO [stderr] su: No module specific data is present
Dec 05 07:40:11.944 INFO running `"docker" "inspect" "4aa9bff192be4e6a6e0c51f2d626e6646876e43b9d73e7f7e0824a759b952121"`
Dec 05 07:40:12.186 INFO running `"docker" "rm" "-f" "4aa9bff192be4e6a6e0c51f2d626e6646876e43b9d73e7f7e0824a759b952121"`
Dec 05 07:40:12.480 INFO [stdout] 4aa9bff192be4e6a6e0c51f2d626e6646876e43b9d73e7f7e0824a759b952121
Dec 05 07:40:12.486 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 05 07:40:12.982 INFO [stdout] 68a3d0cc1b8350d7ada26da7c4956b805e165d59e7b85d784c8c3bdea9b38eab
Dec 05 07:40:12.984 INFO running `"docker" "start" "-a" "68a3d0cc1b8350d7ada26da7c4956b805e165d59e7b85d784c8c3bdea9b38eab"`
Dec 05 07:40:14.440 INFO [stderr] usermod: no changes
Dec 05 07:40:14.512 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 05 07:40:14.516 INFO [stderr]      Running /target/debug/deps/rust_too_many_lists-f7f040d28ca826a3
Dec 05 07:40:14.521 INFO [stdout] 
Dec 05 07:40:14.522 INFO [stdout] running 8 tests
Dec 05 07:40:14.533 INFO [stdout] test four::a_test ... ok
Dec 05 07:40:14.533 INFO [stdout] test second::test::basics ... ok
Dec 05 07:40:14.533 INFO [stdout] test second::test::into_iter_test ... ok
Dec 05 07:40:14.533 INFO [stdout] test second::test::iter ... ok
Dec 05 07:40:14.533 INFO [stdout] test second::test::peek_mut_test ... ok
Dec 05 07:40:14.533 INFO [stdout] test first::test::basics ... ok
Dec 05 07:40:14.540 INFO [stdout] test second::test::peek_test ... ok
Dec 05 07:40:14.540 INFO [stdout] test treeee::test::treeee_test ... ok
Dec 05 07:40:14.540 INFO [stdout] 
Dec 05 07:40:14.540 INFO [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 07:40:14.540 INFO [stdout] 
Dec 05 07:40:14.542 INFO [stderr] su: No module specific data is present
Dec 05 07:40:15.472 INFO running `"docker" "inspect" "68a3d0cc1b8350d7ada26da7c4956b805e165d59e7b85d784c8c3bdea9b38eab"`
Dec 05 07:40:15.702 INFO running `"docker" "rm" "-f" "68a3d0cc1b8350d7ada26da7c4956b805e165d59e7b85d784c8c3bdea9b38eab"`
Dec 05 07:40:15.984 INFO [stdout] 68a3d0cc1b8350d7ada26da7c4956b805e165d59e7b85d784c8c3bdea9b38eab