[INFO] updating cached repository MaxfieldWalker/blindsearch
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/MaxfieldWalker/blindsearch
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/MaxfieldWalker/blindsearch" "work/ex/beta-1.38-1/sources/1.37.0/gh/MaxfieldWalker/blindsearch"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/MaxfieldWalker/blindsearch'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/MaxfieldWalker/blindsearch" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MaxfieldWalker/blindsearch"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MaxfieldWalker/blindsearch'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 87a9d48254268a753735c842c5ac569d1eb2a72c
[INFO] sha for GitHub repo MaxfieldWalker/blindsearch: 87a9d48254268a753735c842c5ac569d1eb2a72c
[INFO] validating manifest of MaxfieldWalker/blindsearch 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 MaxfieldWalker/blindsearch 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 MaxfieldWalker/blindsearch
[INFO] finished frobbing MaxfieldWalker/blindsearch
[INFO] frobbed toml for MaxfieldWalker/blindsearch written to work/ex/beta-1.38-1/sources/1.37.0/gh/MaxfieldWalker/blindsearch/Cargo.toml
[INFO] started frobbing MaxfieldWalker/blindsearch
[INFO] finished frobbing MaxfieldWalker/blindsearch
[INFO] frobbed toml for MaxfieldWalker/blindsearch written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MaxfieldWalker/blindsearch/Cargo.toml
[INFO] crate MaxfieldWalker/blindsearch 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 MaxfieldWalker/blindsearch 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/MaxfieldWalker/blindsearch:/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] 03fb37c4c116e25975fc3022ae77a294be2863c8799ed63ab7d8eb1d8eb7cc50
[INFO] running `"docker" "start" "-a" "03fb37c4c116e25975fc3022ae77a294be2863c8799ed63ab7d8eb1d8eb7cc50"`
[INFO] [stderr]    Compiling blindsearch v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `blind_search_dfs`
[INFO] [stderr]  --> src/dfs.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn blind_search_dfs(root_node: &Node, goals: &Vec<String>) -> BlindSearchResult {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dig`
[INFO] [stderr]   --> src/dfs.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | / fn dig(l1: &mut Vec<Node>,
[INFO] [stderr] 23 | |        l2: &mut Vec<Node>,
[INFO] [stderr] 24 | |        loop_count: u32,
[INFO] [stderr] 25 | |        goals: &Vec<String>)
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `NodeRef`
[INFO] [stderr]  --> src/tree.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | type NodeRef = Rc<RefCell<_Node>>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Node`
[INFO] [stderr]   --> src/tree.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub struct Node(NodeRef);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/tree.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn new(value: String) -> Node {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_child`
[INFO] [stderr]   --> src/tree.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn add_child(&self, child_node: &Node) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `stringify`
[INFO] [stderr]   --> src/tree.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn stringify(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `inner_stringify`
[INFO] [stderr]   --> src/tree.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn inner_stringify(&self, depth: i32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `find_node`
[INFO] [stderr]   --> src/tree.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn find_node(&self, value: &str) -> Option<(Node, u32)> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `inner_find_node`
[INFO] [stderr]   --> src/tree.rs:66:5
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn inner_find_node(&self, value: &str, current_depth: u32) -> Option<(Node, u32)> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `children`
[INFO] [stderr]   --> src/tree.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     pub fn children(&self) -> Vec<Node> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `name`
[INFO] [stderr]   --> src/tree.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub fn name(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `has_child_node`
[INFO] [stderr]    --> src/tree.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     pub fn has_child_node(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ref_clone`
[INFO] [stderr]    --> src/tree.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     pub fn ref_clone(&self) -> Node {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `BlindSearchStatus`
[INFO] [stderr]  --> src/blindsearch.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct BlindSearchStatus {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/blindsearch.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub fn new(status: String, result: SearchResult) -> BlindSearchStatus {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Found`
[INFO] [stderr]   --> src/blindsearch.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     Found,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NotFound`
[INFO] [stderr]   --> src/blindsearch.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     NotFound,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `BlindSearchResult`
[INFO] [stderr]   --> src/blindsearch.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub struct BlindSearchResult {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `capture`
[INFO] [stderr]   --> src/core.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn capture<'a>(s: &'a String) -> regex::Captures<'a> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_line`
[INFO] [stderr]   --> src/core.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn parse_line<'a>(line: &'a String) -> (String, Vec<(bool, String)>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `build_tree`
[INFO] [stderr]   --> src/core.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | fn build_tree(line: String, root_node: &Node, goals: &mut Vec<String>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `build_tree_from_input`
[INFO] [stderr]   --> src/core.rs:72:1
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub fn build_tree_from_input(input_path: &str) -> Node {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `blind_search_bfs`
[INFO] [stderr]  --> src/bfs.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn blind_search_bfs(root_node: &Node, goals: &Vec<String>) -> BlindSearchResult {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dig`
[INFO] [stderr]   --> src/bfs.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | / fn dig(l1: &mut Vec<Node>,
[INFO] [stderr] 21 | |        l2: &mut Vec<Node>,
[INFO] [stderr] 22 | |        loop_count: u32,
[INFO] [stderr] 23 | |        goals: &Vec<String>)
[INFO] [stderr] ...  |
[INFO] [stderr] 61 | |     }
[INFO] [stderr] 62 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `blind_search_iddfs`
[INFO] [stderr]   --> src/iddfs.rs:6:1
[INFO] [stderr]    |
[INFO] [stderr] 6  | / pub fn blind_search_iddfs(root_node: &Node,
[INFO] [stderr] 7  | |                           goals: &Vec<String>,
[INFO] [stderr] 8  | |                           cutoff_threshold: u32)
[INFO] [stderr] 9  | |                           -> BlindSearchResult {
[INFO] [stderr] ...  |
[INFO] [stderr] 32 | |     }
[INFO] [stderr] 33 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dig`
[INFO] [stderr]    --> src/iddfs.rs:36:1
[INFO] [stderr]     |
[INFO] [stderr] 36  | / fn dig(l1: &mut Vec<Node>,
[INFO] [stderr] 37  | |        l2: &mut Vec<Node>,
[INFO] [stderr] 38  | |        cutoff: u32,
[INFO] [stderr] 39  | |        cutoff_threshold: u32,
[INFO] [stderr] ...   |
[INFO] [stderr] 105 | |     }
[INFO] [stderr] 106 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `"docker" "inspect" "03fb37c4c116e25975fc3022ae77a294be2863c8799ed63ab7d8eb1d8eb7cc50"`
[INFO] running `"docker" "rm" "-f" "03fb37c4c116e25975fc3022ae77a294be2863c8799ed63ab7d8eb1d8eb7cc50"`
[INFO] [stdout] 03fb37c4c116e25975fc3022ae77a294be2863c8799ed63ab7d8eb1d8eb7cc50
[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/MaxfieldWalker/blindsearch:/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] fc2c248c636d0e4843e25421d95b1864557b50d5797c6b05a1cbb4fd6c7ec171
[INFO] running `"docker" "start" "-a" "fc2c248c636d0e4843e25421d95b1864557b50d5797c6b05a1cbb4fd6c7ec171"`
[INFO] [stderr]    Compiling blindsearch v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `stringify`
[INFO] [stderr]   --> src/tree.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn stringify(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `inner_stringify`
[INFO] [stderr]   --> src/tree.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn inner_stringify(&self, depth: i32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.22s
[INFO] running `"docker" "inspect" "fc2c248c636d0e4843e25421d95b1864557b50d5797c6b05a1cbb4fd6c7ec171"`
[INFO] running `"docker" "rm" "-f" "fc2c248c636d0e4843e25421d95b1864557b50d5797c6b05a1cbb4fd6c7ec171"`
[INFO] [stdout] fc2c248c636d0e4843e25421d95b1864557b50d5797c6b05a1cbb4fd6c7ec171
[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/MaxfieldWalker/blindsearch:/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] b41fe061f71487c74dfbacc07a36816ff266b0e2fb72c5686a7b89aa95cb413c
[INFO] running `"docker" "start" "-a" "b41fe061f71487c74dfbacc07a36816ff266b0e2fb72c5686a7b89aa95cb413c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/blindsearch-802b003e965f28b5
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test dfs::tests::test_dfs ... ok
[INFO] [stdout] test bfs::tests::test_dfs ... ok
[INFO] [stdout] test iddfs::tests::test_dfs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b41fe061f71487c74dfbacc07a36816ff266b0e2fb72c5686a7b89aa95cb413c"`
[INFO] running `"docker" "rm" "-f" "b41fe061f71487c74dfbacc07a36816ff266b0e2fb72c5686a7b89aa95cb413c"`
[INFO] [stdout] b41fe061f71487c74dfbacc07a36816ff266b0e2fb72c5686a7b89aa95cb413c