[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 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fundergg%2Fanagram-solver" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/undergg/anagram-solver on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-3/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" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1349108708f64ae0ad7bba7195d535bb3041b462f63db97ed6895432e5204fcf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1349108708f64ae0ad7bba7195d535bb3041b462f63db97ed6895432e5204fcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1349108708f64ae0ad7bba7195d535bb3041b462f63db97ed6895432e5204fcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1349108708f64ae0ad7bba7195d535bb3041b462f63db97ed6895432e5204fcf", kill_on_drop: false }`
[INFO] [stdout] 1349108708f64ae0ad7bba7195d535bb3041b462f63db97ed6895432e5204fcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f13209c252d92fc46886c696a27085558719a32ecf1dc41027daf2a00d76ea83
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f13209c252d92fc46886c696a27085558719a32ecf1dc41027daf2a00d76ea83", 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 3.08s
[INFO] running `Command { std: "docker" "inspect" "f13209c252d92fc46886c696a27085558719a32ecf1dc41027daf2a00d76ea83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f13209c252d92fc46886c696a27085558719a32ecf1dc41027daf2a00d76ea83", kill_on_drop: false }`
[INFO] [stdout] f13209c252d92fc46886c696a27085558719a32ecf1dc41027daf2a00d76ea83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9137a90ca04c78669bc516665be29282414c0d1c835af5ebf6cd19f6bc20c4e6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9137a90ca04c78669bc516665be29282414c0d1c835af5ebf6cd19f6bc20c4e6", kill_on_drop: false }`
[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] [stderr]    Compiling anagram-solver v0.1.0 (/opt/rustwide/workdir)
[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 2.08s
[INFO] running `Command { std: "docker" "inspect" "9137a90ca04c78669bc516665be29282414c0d1c835af5ebf6cd19f6bc20c4e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9137a90ca04c78669bc516665be29282414c0d1c835af5ebf6cd19f6bc20c4e6", kill_on_drop: false }`
[INFO] [stdout] 9137a90ca04c78669bc516665be29282414c0d1c835af5ebf6cd19f6bc20c4e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 95d9c350d9fd32855386edbaa1c1217f22536ce64bce4dfca51f9013bf26e1a5
[INFO] running `Command { std: "docker" "start" "-a" "95d9c350d9fd32855386edbaa1c1217f22536ce64bce4dfca51f9013bf26e1a5", kill_on_drop: false }`
[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 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/anagram_solver-5afc235589eca947)
[INFO] [stdout] running 4 tests
[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] test trie::tests::test_trie_delete ... ok
[INFO] [stdout] test trie::tests::test_trie_add_contains ... 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-4056c03ac31e3e49)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests anagram-solver
[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" "95d9c350d9fd32855386edbaa1c1217f22536ce64bce4dfca51f9013bf26e1a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95d9c350d9fd32855386edbaa1c1217f22536ce64bce4dfca51f9013bf26e1a5", kill_on_drop: false }`
[INFO] [stdout] 95d9c350d9fd32855386edbaa1c1217f22536ce64bce4dfca51f9013bf26e1a5