[INFO] cloning repository https://github.com/undergg/anagram-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/undergg/anagram-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fundergg%2Fanagram-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fundergg%2Fanagram-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a4f129a3187dff16c12ef9a090b68d7ee317190c
[INFO] testing undergg/anagram-solver against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fundergg%2Fanagram-solver" "/workspace/builds/worker-93/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-93/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/undergg/anagram-solver on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/undergg/anagram-solver
[INFO] finished tweaking git repo https://github.com/undergg/anagram-solver
[INFO] tweaked toml for git repo https://github.com/undergg/anagram-solver written to /workspace/builds/worker-93/source/Cargo.toml
[INFO] crate git repo https://github.com/undergg/anagram-solver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 277fc38dc914afe7c602cecc9263ed326158d9d023de4e55348d672b3a5ca6a3
[INFO] running `Command { std: "docker" "start" "-a" "277fc38dc914afe7c602cecc9263ed326158d9d023de4e55348d672b3a5ca6a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "277fc38dc914afe7c602cecc9263ed326158d9d023de4e55348d672b3a5ca6a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "277fc38dc914afe7c602cecc9263ed326158d9d023de4e55348d672b3a5ca6a3", kill_on_drop: false }`
[INFO] [stdout] 277fc38dc914afe7c602cecc9263ed326158d9d023de4e55348d672b3a5ca6a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76a6457a396cf0fe02c7396c9746576f9df143cf5bcc824ce8d07e72294bf19c
[INFO] running `Command { std: "docker" "start" "-a" "76a6457a396cf0fe02c7396c9746576f9df143cf5bcc824ce8d07e72294bf19c", kill_on_drop: false }`
[INFO] [stderr]    Compiling anagram-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::trie::Trie`
[INFO] [stdout]  --> src/solver.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::trie::Trie;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `todo`
[INFO] [stdout]  --> src/solver.rs:2:44
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{collections::{HashMap, HashSet}, todo};
[INFO] [stdout]   |                                            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delete`
[INFO] [stdout]   --> src/trie.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn delete(&mut self, item: &str) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `contains`
[INFO] [stdout]   --> src/trie.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn contains(&self, item: &str) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `delete_helper`
[INFO] [stdout]   --> src/trie.rs:98:4
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn delete_helper(node: &mut TrieNode, c_iter: &mut Chars, delete_node: &mut bool) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `contains_helper`
[INFO] [stdout]    --> src/trie.rs:150:4
[INFO] [stdout]     |
[INFO] [stdout] 150 | fn contains_helper(node: &TrieNode, c_iter: &mut Chars) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.86s
[INFO] running `Command { std: "docker" "inspect" "76a6457a396cf0fe02c7396c9746576f9df143cf5bcc824ce8d07e72294bf19c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76a6457a396cf0fe02c7396c9746576f9df143cf5bcc824ce8d07e72294bf19c", kill_on_drop: false }`
[INFO] [stdout] 76a6457a396cf0fe02c7396c9746576f9df143cf5bcc824ce8d07e72294bf19c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d1d8fd629e5fc6a9cc925cbceff42dc1161254d3d758858c743a922053bf47a
[INFO] running `Command { std: "docker" "start" "-a" "8d1d8fd629e5fc6a9cc925cbceff42dc1161254d3d758858c743a922053bf47a", kill_on_drop: false }`
[INFO] [stderr]    Compiling anagram-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::trie::Trie`
[INFO] [stdout]  --> src/solver.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::trie::Trie;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `todo`
[INFO] [stdout]  --> src/solver.rs:2:44
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{collections::{HashMap, HashSet}, todo};
[INFO] [stdout]   |                                            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delete`
[INFO] [stdout]   --> src/trie.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn delete(&mut self, item: &str) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `contains`
[INFO] [stdout]   --> src/trie.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn contains(&self, item: &str) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `delete_helper`
[INFO] [stdout]   --> src/trie.rs:98:4
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn delete_helper(node: &mut TrieNode, c_iter: &mut Chars, delete_node: &mut bool) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `contains_helper`
[INFO] [stdout]    --> src/trie.rs:150:4
[INFO] [stdout]     |
[INFO] [stdout] 150 | fn contains_helper(node: &TrieNode, c_iter: &mut Chars) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::trie::Trie`
[INFO] [stdout]  --> src/solver.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::trie::Trie;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `todo`
[INFO] [stdout]  --> src/solver.rs:2:44
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{collections::{HashMap, HashSet}, todo};
[INFO] [stdout]   |                                            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.02s
[INFO] running `Command { std: "docker" "inspect" "8d1d8fd629e5fc6a9cc925cbceff42dc1161254d3d758858c743a922053bf47a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d1d8fd629e5fc6a9cc925cbceff42dc1161254d3d758858c743a922053bf47a", kill_on_drop: false }`
[INFO] [stdout] 8d1d8fd629e5fc6a9cc925cbceff42dc1161254d3d758858c743a922053bf47a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 910e454eeffc18dcb280ad613a4578b8764c8105eafaac86aac746dca9bb0943
[INFO] running `Command { std: "docker" "start" "-a" "910e454eeffc18dcb280ad613a4578b8764c8105eafaac86aac746dca9bb0943", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `super::trie::Trie`
[INFO] [stderr]  --> src/solver.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use super::trie::Trie;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `todo`
[INFO] [stderr]  --> src/solver.rs:2:44
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{collections::{HashMap, HashSet}, todo};
[INFO] [stderr]   |                                            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `delete`
[INFO] [stderr]   --> src/trie.rs:52:12
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn delete(&mut self, item: &str) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `contains`
[INFO] [stderr]   --> src/trie.rs:59:12
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn contains(&self, item: &str) -> bool {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `delete_helper`
[INFO] [stderr]   --> src/trie.rs:98:4
[INFO] [stderr]    |
[INFO] [stderr] 98 | fn delete_helper(node: &mut TrieNode, c_iter: &mut Chars, delete_node: &mut bool) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `contains_helper`
[INFO] [stderr]    --> src/trie.rs:150:4
[INFO] [stderr]     |
[INFO] [stderr] 150 | fn contains_helper(node: &TrieNode, c_iter: &mut Chars) -> bool {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `anagram-solver` (lib) generated 6 warnings
[INFO] [stderr] warning: `anagram-solver` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/anagram_solver-4cdaa1a0ac6e7fa1)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test trie::tests::test_trie_add_contains ... ok
[INFO] [stdout] test trie::tests::test_trie_delete ... ok
[INFO] [stdout] test trie::tests::test_trie_delete_word_does_not_exist ... ok
[INFO] [stdout] test trie::tests::test_trie_find_anagrams ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/anagram_solver-4dd171383ce92cb9)
[INFO] [stderr]    Doc-tests anagram-solver
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "910e454eeffc18dcb280ad613a4578b8764c8105eafaac86aac746dca9bb0943", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "910e454eeffc18dcb280ad613a4578b8764c8105eafaac86aac746dca9bb0943", kill_on_drop: false }`
[INFO] [stdout] 910e454eeffc18dcb280ad613a4578b8764c8105eafaac86aac746dca9bb0943