[INFO] updating cached repository davidpeklak/rust-algorithms [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/davidpeklak/rust-algorithms [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/davidpeklak/rust-algorithms" "work/ex/beta-1.38-1/sources/1.37.0/gh/davidpeklak/rust-algorithms"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/davidpeklak/rust-algorithms'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/davidpeklak/rust-algorithms" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/davidpeklak/rust-algorithms"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/davidpeklak/rust-algorithms'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 91e623a8fd1cc020b36d665a68b1d4405d10d82a [INFO] sha for GitHub repo davidpeklak/rust-algorithms: 91e623a8fd1cc020b36d665a68b1d4405d10d82a [INFO] validating manifest of davidpeklak/rust-algorithms on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of davidpeklak/rust-algorithms on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing davidpeklak/rust-algorithms [INFO] finished frobbing davidpeklak/rust-algorithms [INFO] frobbed toml for davidpeklak/rust-algorithms written to work/ex/beta-1.38-1/sources/1.37.0/gh/davidpeklak/rust-algorithms/Cargo.toml [INFO] started frobbing davidpeklak/rust-algorithms [INFO] finished frobbing davidpeklak/rust-algorithms [INFO] frobbed toml for davidpeklak/rust-algorithms written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/davidpeklak/rust-algorithms/Cargo.toml [INFO] crate davidpeklak/rust-algorithms already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing davidpeklak/rust-algorithms against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/davidpeklak/rust-algorithms:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 211e4763eacac043eebeab2f381f226e60ca9ead2f8c5b77309f024917d6df14 [INFO] running `"docker" "start" "-a" "211e4763eacac043eebeab2f381f226e60ca9ead2f8c5b77309f024917d6df14"` [INFO] [stderr] Compiling num-bigint v0.1.44 [INFO] [stderr] Compiling num-rational v0.1.42 [INFO] [stderr] Compiling num v0.1.42 [INFO] [stderr] Compiling stopwatch v0.0.7 [INFO] [stderr] Compiling algorithms v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib/linked_list.rs:29:41 [INFO] [stderr] | [INFO] [stderr] 29 | fn tail<'a>(&'a self) -> Option<&'a LinkedList>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(bare_trait_objects)] on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib/linked_list.rs:36:12 [INFO] [stderr] | [INFO] [stderr] 36 | l: &'a LinkedList [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib/linked_list.rs:56:41 [INFO] [stderr] | [INFO] [stderr] 56 | fn tail<'a>(&'a self) -> Option<&'a LinkedList> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib/linked_list.rs:65:28 [INFO] [stderr] | [INFO] [stderr] 65 | impl LinkedList for Box> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib/linked_list.rs:72:38 [INFO] [stderr] | [INFO] [stderr] 72 | fn tail<'a>(&'a self) -> Option<&LinkedList> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib/linked_list.rs:88:41 [INFO] [stderr] | [INFO] [stderr] 88 | fn tail<'a>(&'a self) -> Option<&'a LinkedList> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList` [INFO] [stderr] [INFO] [stderr] warning: unused import: `cmp` [INFO] [stderr] --> src/lib/red_black_bst.rs:3:11 [INFO] [stderr] | [INFO] [stderr] 3 | use std::{cmp, mem}; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Range` [INFO] [stderr] --> src/lib/red_black_bst.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::ops::Range; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Range` [INFO] [stderr] --> src/lib/red_black_bst_2.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::ops::Range; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cmp` [INFO] [stderr] --> src/lib/red_black_bst_2.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::cmp; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Red` [INFO] [stderr] --> src/lib/red_black_bst.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | Red, [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Black` [INFO] [stderr] --> src/lib/red_black_bst.rs:12:5 [INFO] [stderr] | [INFO] [stderr] 12 | Black [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `End` [INFO] [stderr] --> src/lib/red_black_bst.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | End, [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `ColoredLink` [INFO] [stderr] --> src/lib/red_black_bst.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | / ColoredLink { [INFO] [stderr] 19 | | color: Color, [INFO] [stderr] 20 | | node_box: Box>, [INFO] [stderr] 21 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `insert_val` [INFO] [stderr] --> src/lib/red_black_bst.rs:51:5 [INFO] [stderr] | [INFO] [stderr] 51 | fn insert_val(&mut self, value: Item) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `insert_node` [INFO] [stderr] --> src/lib/red_black_bst.rs:56:5 [INFO] [stderr] | [INFO] [stderr] 56 | fn insert_node(&mut self, node: Node) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `make_black` [INFO] [stderr] --> src/lib/red_black_bst.rs:69:5 [INFO] [stderr] | [INFO] [stderr] 69 | fn make_black(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `modify` [INFO] [stderr] --> src/lib/red_black_bst.rs:76:5 [INFO] [stderr] | [INFO] [stderr] 76 | / fn modify(&mut self, f: F) [INFO] [stderr] 77 | | where F: Fn(Link) -> Link { [INFO] [stderr] 78 | | let self_owned = mem::replace(self, End); [INFO] [stderr] 79 | | let new_self = f(self_owned); [INFO] [stderr] 80 | | mem::replace(self, new_self); [INFO] [stderr] 81 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `consume_node_consume` [INFO] [stderr] --> src/lib/red_black_bst.rs:83:5 [INFO] [stderr] | [INFO] [stderr] 83 | / fn consume_node_consume(self, f: F) -> Link [INFO] [stderr] 84 | | where F: Fn(Node) -> Node { [INFO] [stderr] 85 | | match self { [INFO] [stderr] 86 | | End => self, [INFO] [stderr] ... | [INFO] [stderr] 91 | | } [INFO] [stderr] 92 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `rotate_left` [INFO] [stderr] --> src/lib/red_black_bst.rs:94:5 [INFO] [stderr] | [INFO] [stderr] 94 | fn rotate_left(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `rotate_right` [INFO] [stderr] --> src/lib/red_black_bst.rs:98:5 [INFO] [stderr] | [INFO] [stderr] 98 | fn rotate_right(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `color_flip` [INFO] [stderr] --> src/lib/red_black_bst.rs:102:5 [INFO] [stderr] | [INFO] [stderr] 102 | fn color_flip(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/lib/red_black_bst.rs:204:5 [INFO] [stderr] | [INFO] [stderr] 204 | fn new(value: Item) -> Node [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `insert_val` [INFO] [stderr] --> src/lib/red_black_bst.rs:209:5 [INFO] [stderr] | [INFO] [stderr] 209 | fn insert_val(&mut self, value: Item) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `insert_node` [INFO] [stderr] --> src/lib/red_black_bst.rs:214:5 [INFO] [stderr] | [INFO] [stderr] 214 | fn insert_node(&mut self, node: Node) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `left_value_ref` [INFO] [stderr] --> src/lib/red_black_bst.rs:230:5 [INFO] [stderr] | [INFO] [stderr] 230 | fn left_value_ref(&self) -> Option<&Item> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `left_value` [INFO] [stderr] --> src/lib/red_black_bst.rs:234:5 [INFO] [stderr] | [INFO] [stderr] 234 | / fn left_value(&self) -> Option [INFO] [stderr] 235 | | where Item: Copy { [INFO] [stderr] 236 | | self.left.value() [INFO] [stderr] 237 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `right_value_ref` [INFO] [stderr] --> src/lib/red_black_bst.rs:239:5 [INFO] [stderr] | [INFO] [stderr] 239 | fn right_value_ref(&self) -> Option<&Item> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `right_value` [INFO] [stderr] --> src/lib/red_black_bst.rs:243:5 [INFO] [stderr] | [INFO] [stderr] 243 | / fn right_value(&self) -> Option [INFO] [stderr] 244 | | where Item: Copy { [INFO] [stderr] 245 | | self.right.value() [INFO] [stderr] 246 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `rotate_left` [INFO] [stderr] --> src/lib/red_black_bst.rs:248:5 [INFO] [stderr] | [INFO] [stderr] 248 | fn rotate_left(self) -> Node { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `rotate_right` [INFO] [stderr] --> src/lib/red_black_bst.rs:284:5 [INFO] [stderr] | [INFO] [stderr] 284 | fn rotate_right(self) -> Node { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.24s [INFO] running `"docker" "inspect" "211e4763eacac043eebeab2f381f226e60ca9ead2f8c5b77309f024917d6df14"` [INFO] running `"docker" "rm" "-f" "211e4763eacac043eebeab2f381f226e60ca9ead2f8c5b77309f024917d6df14"` [INFO] [stdout] 211e4763eacac043eebeab2f381f226e60ca9ead2f8c5b77309f024917d6df14 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/davidpeklak/rust-algorithms:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 908cd8fe9dbac35638a7884ce63f76ddce51d98ca63c86045c13e22fdeec03f4 [INFO] running `"docker" "start" "-a" "908cd8fe9dbac35638a7884ce63f76ddce51d98ca63c86045c13e22fdeec03f4"` [INFO] [stderr] Compiling algorithms v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `size` [INFO] [stderr] --> tests/performance_red_black.rs:25:23 [INFO] [stderr] | [INFO] [stderr] 25 | fn run(&mut self, size: usize, rng: &mut ThreadRng) { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_size` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib/linked_list.rs:29:41 [INFO] [stderr] | [INFO] [stderr] 29 | fn tail<'a>(&'a self) -> Option<&'a LinkedList>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(bare_trait_objects)] on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib/linked_list.rs:36:12 [INFO] [stderr] | [INFO] [stderr] 36 | l: &'a LinkedList [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib/linked_list.rs:56:41 [INFO] [stderr] | [INFO] [stderr] 56 | fn tail<'a>(&'a self) -> Option<&'a LinkedList> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib/linked_list.rs:65:28 [INFO] [stderr] | [INFO] [stderr] 65 | impl LinkedList for Box> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib/linked_list.rs:72:38 [INFO] [stderr] | [INFO] [stderr] 72 | fn tail<'a>(&'a self) -> Option<&LinkedList> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib/linked_list.rs:88:41 [INFO] [stderr] | [INFO] [stderr] 88 | fn tail<'a>(&'a self) -> Option<&'a LinkedList> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib/linked_list.rs:134:34 [INFO] [stderr] | [INFO] [stderr] 134 | fn some_linked_list() -> Box> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib/linked_list.rs:153:41 [INFO] [stderr] | [INFO] [stderr] 153 | fn prepend_some<'a, L>(l: L) -> Box + 'a> [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LinkedList + 'a` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib/graph.rs:51:13 [INFO] [stderr] | [INFO] [stderr] 51 | let mut g: Vec> = Graph::new(4); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `insert_val` [INFO] [stderr] --> src/lib/red_black_bst.rs:209:5 [INFO] [stderr] | [INFO] [stderr] 209 | fn insert_val(&mut self, value: Item) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `right_value_ref` [INFO] [stderr] --> src/lib/red_black_bst.rs:239:5 [INFO] [stderr] | [INFO] [stderr] 239 | fn right_value_ref(&self) -> Option<&Item> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `right_value` [INFO] [stderr] --> src/lib/red_black_bst.rs:243:5 [INFO] [stderr] | [INFO] [stderr] 243 | / fn right_value(&self) -> Option [INFO] [stderr] 244 | | where Item: Copy { [INFO] [stderr] 245 | | self.right.value() [INFO] [stderr] 246 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 12.81s [INFO] running `"docker" "inspect" "908cd8fe9dbac35638a7884ce63f76ddce51d98ca63c86045c13e22fdeec03f4"` [INFO] running `"docker" "rm" "-f" "908cd8fe9dbac35638a7884ce63f76ddce51d98ca63c86045c13e22fdeec03f4"` [INFO] [stdout] 908cd8fe9dbac35638a7884ce63f76ddce51d98ca63c86045c13e22fdeec03f4 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/davidpeklak/rust-algorithms:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"` [INFO] [stdout] 5270966c2fc66ce7a79824822b005733344e950c4966bfb192439ed58214fedb [INFO] running `"docker" "start" "-a" "5270966c2fc66ce7a79824822b005733344e950c4966bfb192439ed58214fedb"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running /opt/crater/target/debug/deps/algorithms-faa52bb507f35fe2 [INFO] [stdout] [INFO] [stdout] running 90 tests [INFO] [stdout] test deque::tests::add_first_and_query ... ok [INFO] [stdout] test deque::tests::add_last_and_query ... ok [INFO] [stdout] test deque::tests::box_to_non_null_to_box ... ok [INFO] [stdout] test deque::tests::construct_deque_and_query ... ok [INFO] [stdout] test deque::tests::fifo_left ... ok [INFO] [stdout] test deque::tests::fifo_right ... ok [INFO] [stdout] test deque::tests::filo_left ... ok [INFO] [stdout] test deque::tests::filo_right ... ok [INFO] [stdout] test deque::tests::iter ... ok [INFO] [stdout] test deque::tests::sizes ... ok [INFO] [stdout] test graph::tests::test_adj ... ok [INFO] [stdout] test graph::tests::test_number_of_vertices ... ok [INFO] [stdout] test graph::tests::test_number_of_edges ... ok [INFO] [stdout] test index_ops::test::vec_length ... ok [INFO] [stdout] test linked_list::tests::heap_construction ... ok [INFO] [stdout] test is_sorted::test_is_sorted ... ok [INFO] [stdout] test linked_list::tests::iter_stack ... ok [INFO] [stdout] test insertion_sort::test::small_example ... ok [INFO] [stdout] test linked_list::tests::iter_loop ... ok [INFO] [stdout] test linked_list::tests::stack_construction ... ok [INFO] [stdout] test linked_list::tests::mixed_construction ... ok [INFO] [stdout] test max_pq::tests::test_heap_sort ... ok [INFO] [stdout] test max_pq::tests::test_insert ... ok [INFO] [stdout] test max_pq::tests::test_del_max ... ok [INFO] [stdout] test max_pq::tests::test_is_binary_heap ... ok [INFO] [stdout] test max_pq::tests::test_make_heap ... ok [INFO] [stdout] test merge_sort::test::merge_some ... ok [INFO] [stdout] test merge_sort::test::merge_sort_is_sorted ... ok [INFO] [stdout] test max_pq::tests::test_manual_sinking ... ok [INFO] [stdout] test percolation::tests::new_percolation_is_full ... ok [INFO] [stdout] test percolation::tests::percolate_1 ... ok [INFO] [stdout] test percolation::tests::percolate_3_z ... ok [INFO] [stdout] test percolation::tests::open_once ... ok [INFO] [stdout] test percolation::tests::open_twice ... ok [INFO] [stdout] test percolation::tests::percolate_3_s ... ok [INFO] [stdout] test merge_sort::test::merge_sort_some ... ok [INFO] [stdout] test quick_find::tests::test_3_c ... ok [INFO] [stdout] test quick_find::tests::test_3 ... ok [INFO] [stdout] test quick_sort::tests::three_way_partition_some ... ok [INFO] [stdout] test quick_union::tests::test_3 ... ok [INFO] [stdout] test red_black_bst::tests::color_flip ... ok [INFO] [stdout] test red_black_bst::tests::insert_higher_value ... ok [INFO] [stdout] test quick_sort::tests::partition_some ... ok [INFO] [stdout] test quick_union::tests::test_3_c ... ok [INFO] [stdout] test red_black_bst::tests::insert_lower_value ... ok [INFO] [stdout] test red_black_bst::tests::depth ... ok [INFO] [stdout] test insertion_sort::test::insertion_sort_some ... ok [INFO] [stdout] test red_black_bst::tests::test_left_value ... ok [INFO] [stdout] test red_black_bst::tests::test_left_value_ref ... ok [INFO] [stdout] test quick_sort::tests::test_quick_select ... ok [INFO] [stdout] test red_black_bst::tests::test_rotate_left ... ok [INFO] [stdout] test red_black_bst::tests::test_is_bst ... ok [INFO] [stdout] test quick_sort::tests::three_way_quick_sort_some ... ok [INFO] [stdout] test quick_sort::tests::quick_sort_some ... ok [INFO] [stdout] test red_black_bst_2::tests::test_big_tree ... ok [INFO] [stdout] test red_black_bst_2::tests::test_black_depth ... ok [INFO] [stdout] test red_black_bst_2::tests::test_color_flip ... ok [INFO] [stdout] test red_black_bst::tests::test_rotate_right ... ok [INFO] [stdout] test red_black_bst::tests::test_new ... ok [INFO] [stdout] test red_black_bst_2::tests::test_from_iter ... ok [INFO] [stdout] test red_black_bst_2::tests::test_insert_3 ... ok [INFO] [stdout] test red_black_bst_2::tests::test_contains ... ok [INFO] [stdout] test red_black_bst_2::tests::test_has_consecutive_red_links ... ok [INFO] [stdout] test red_black_bst_2::tests::multiple_insertion_results_in_bst ... ok [INFO] [stdout] test red_black_bst_2::tests::test_is_bst ... ok [INFO] [stdout] test red_black_bst_2::tests::test_rotate_left ... ok [INFO] [stdout] test red_black_bst_2::tests::test_iter ... ok [INFO] [stdout] test red_black_bst_2::tests::test_rotate_right ... ok [INFO] [stdout] test red_black_bst_2::tests::test_size ... ok [INFO] [stdout] test red_black_bst_2::tests::test_total_depth ... ok [INFO] [stdout] test red_black_bst_2::tests::test_insert_2 ... ok [INFO] [stdout] test red_black_bst_2::tests::test_insert_1 ... ok [INFO] [stdout] test shell_sort::test::h_generation ... ok [INFO] [stdout] test red_black_bst_2::tests::test_has_right_leaning_red_links ... ok [INFO] [stdout] test shell_sort::test::small_example ... ok [INFO] [stdout] test selection_sort::test::vec_swap ... ok [INFO] [stdout] test shell_sort::test::handwritten ... ok [INFO] [stdout] test red_black_bst_2::tests::test_into_iter ... ok [INFO] [stdout] test step::test::index_mut ... ok [INFO] [stdout] test step::test::index_offset ... ok [INFO] [stdout] test step::test::index ... ok [INFO] [stdout] test step::test::len_offset ... ok [INFO] [stdout] test shell_sort::test::sorted_step ... ok [INFO] [stdout] test shell_sort::test::example_from_course ... ok [INFO] [stdout] test step::test::len ... ok [INFO] [stdout] test weighted_quick_union::tests::test_3 ... ok [INFO] [stdout] test weighted_quick_union::tests::test_3_c ... ok [INFO] [stdout] test selection_sort::test::selection_sort_some ... ok [INFO] [stdout] test red_black_bst::tests::multiple_insertion_results_in_bst ... FAILED [INFO] [stdout] test shell_sort::test::shell_sort_some ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- red_black_bst::tests::multiple_insertion_results_in_bst stdout ---- [INFO] [stdout] thread 'red_black_bst::tests::multiple_insertion_results_in_bst' panicked at 'ColoredLink { color: Black, node_box: Node { value: 53, left: ColoredLink { color: Black, node_box: Node { value: 34, left: ColoredLink { color: Black, node_box: Node { value: 17, left: ColoredLink { color: Black, node_box: Node { value: 15, left: ColoredLink { color: Red, node_box: Node { value: 7, left: End, right: End } }, right: End } }, right: ColoredLink { color: Black, node_box: Node { value: 19, left: End, right: End } } } }, right: ColoredLink { color: Black, node_box: Node { value: 42, left: ColoredLink { color: Black, node_box: Node { value: 41, left: ColoredLink { color: Red, node_box: Node { value: 35, left: End, right: End } }, right: End } }, right: ColoredLink { color: Black, node_box: Node { value: 51, left: ColoredLink { color: Red, node_box: Node { value: 50, left: End, right: End } }, right: End } } } } } }, right: ColoredLink { color: Black, node_box: Node { value: 91, left: ColoredLink { color: Black, node_box: Node { value: 67, left: ColoredLink { color: Black, node_box: Node { value: 66, left: End, right: End } }, right: ColoredLink { color: Black, node_box: Node { value: 81, left: ColoredLink { color: Red, node_box: Node { value: 77, left: End, right: End } }, right: End } } } }, right: ColoredLink { color: Black, node_box: Node { value: 95, left: ColoredLink { color: Black, node_box: Node { value: 93, left: End, right: End } }, right: ColoredLink { color: Black, node_box: Node { value: 99, left: End, right: End } } } } } } } }', src/lib/red_black_bst.rs:687:9 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55f77f05c45b - backtrace::backtrace::libunwind::trace::hfe5db90796807973 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stdout] 1: 0x55f77f05c45b - backtrace::backtrace::trace_unsynchronized::h34b865a835594335 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x55f77f05c45b - std::sys_common::backtrace::_print::h527254ae44989167 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stdout] 3: 0x55f77f05c45b - std::sys_common::backtrace::print::he85dd5ddddf46503 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stdout] 4: 0x55f77f05c45b - std::panicking::default_hook::{{closure}}::h847a2eb38b396f14 [INFO] [stdout] at src/libstd/panicking.rs:200 [INFO] [stdout] 5: 0x55f77f05c0ca - std::panicking::default_hook::h2ca0f9a30a0e206b [INFO] [stdout] at src/libstd/panicking.rs:211 [INFO] [stdout] 6: 0x55f77f05cbd0 - std::panicking::rust_panic_with_hook::hffcefc09751839d1 [INFO] [stdout] at src/libstd/panicking.rs:477 [INFO] [stdout] 7: 0x55f77f05c752 - std::panicking::continue_panic_fmt::hc0f142c930c846fc [INFO] [stdout] at src/libstd/panicking.rs:384 [INFO] [stdout] 8: 0x55f77f05c69f - std::panicking::begin_panic_fmt::ha6acf0ffd6d7f80d [INFO] [stdout] at src/libstd/panicking.rs:339 [INFO] [stdout] 9: 0x55f77efaa1c0 - algorithms::red_black_bst::tests::multiple_insertion_results_in_bst::haab7f07941ae10f0 [INFO] [stdout] at src/lib/red_black_bst.rs:687 [INFO] [stdout] 10: 0x55f77efa9f2a - algorithms::red_black_bst::tests::multiple_insertion_results_in_bst::{{closure}}::h0dfd0085cda5d1be [INFO] [stdout] at src/lib/red_black_bst.rs:676 [INFO] [stdout] 11: 0x55f77efdbc0e - core::ops::function::FnOnce::call_once::h1197a914792ce04f [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/ops/function.rs:231 [INFO] [stdout] 12: 0x55f77efebf7f - as core::ops::function::FnOnce>::call_once::h4a13ee3f0d7b4201 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stdout] 13: 0x55f77f05f1da - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:82 [INFO] [stdout] 14: 0x55f77f006578 - std::panicking::try::h5a93466ab2078586 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:275 [INFO] [stdout] 15: 0x55f77f006578 - std::panic::catch_unwind::h752cbeae6ac7bdea [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:394 [INFO] [stdout] 16: 0x55f77f006578 - test::run_test::run_test_inner::{{closure}}::h206c9c16936edaca [INFO] [stdout] at src/libtest/lib.rs:1466 [INFO] [stdout] 17: 0x55f77efe13f5 - std::sys_common::backtrace::__rust_begin_short_backtrace::hc7edbac42990d270 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/sys_common/backtrace.rs:77 [INFO] [stdout] 18: 0x55f77efe54b5 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::he53c58e7adee87af [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/thread/mod.rs:470 [INFO] [stdout] 19: 0x55f77efe54b5 - as core::ops::function::FnOnce<()>>::call_once::h1aff7c42b6bb3726 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:315 [INFO] [stdout] 20: 0x55f77efe54b5 - std::panicking::try::do_call::h41f8559f88100f6c [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:296 [INFO] [stdout] 21: 0x55f77f05f1da - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:82 [INFO] [stdout] 22: 0x55f77efe5bb2 - std::panicking::try::hb54ba808181fe352 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:275 [INFO] [stdout] 23: 0x55f77efe5bb2 - std::panic::catch_unwind::h555ccf4e835e93f4 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:394 [INFO] [stdout] 24: 0x55f77efe5bb2 - std::thread::Builder::spawn_unchecked::{{closure}}::hd4dae6e19e80fc1a [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/thread/mod.rs:469 [INFO] [stdout] 25: 0x55f77efe5bb2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hc35d54c07710e1a1 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/ops/function.rs:231 [INFO] [stdout] 26: 0x55f77f051f8f - as core::ops::function::FnOnce>::call_once::h42806b83647d4c79 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stdout] 27: 0x55f77f05e930 - as core::ops::function::FnOnce>::call_once::h83c921c8e826dd1d [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stdout] 28: 0x55f77f05e930 - std::sys_common::thread::start_thread::h2613204ce513782e [INFO] [stdout] at src/libstd/sys_common/thread.rs:13 [INFO] [stdout] 29: 0x55f77f05e930 - std::sys::unix::thread::Thread::new::thread_start::h4570080769500bcd [INFO] [stdout] at src/libstd/sys/unix/thread.rs:79 [INFO] [stdout] 30: 0x7f61ef4da4a4 - start_thread [INFO] [stdout] 31: 0x7f61ef005d0f - __clone [INFO] [stdout] 32: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] red_black_bst::tests::multiple_insertion_results_in_bst [INFO] [stdout] [INFO] [stdout] test result: FAILED. 89 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--lib' [INFO] running `"docker" "inspect" "5270966c2fc66ce7a79824822b005733344e950c4966bfb192439ed58214fedb"` [INFO] running `"docker" "rm" "-f" "5270966c2fc66ce7a79824822b005733344e950c4966bfb192439ed58214fedb"` [INFO] [stdout] 5270966c2fc66ce7a79824822b005733344e950c4966bfb192439ed58214fedb