[INFO] cloning repository https://github.com/queirozrphl/rust_merkle_tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/queirozrphl/rust_merkle_tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqueirozrphl%2Frust_merkle_tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqueirozrphl%2Frust_merkle_tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8080db56bf50f89b664bc810ca79d8087f6eea63
[INFO] testing queirozrphl/rust_merkle_tree against beta-2025-10-28 for beta-1.92-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqueirozrphl%2Frust_merkle_tree" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/queirozrphl/rust_merkle_tree
[INFO] finished tweaking git repo https://github.com/queirozrphl/rust_merkle_tree
[INFO] tweaked toml for git repo https://github.com/queirozrphl/rust_merkle_tree written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/queirozrphl/rust_merkle_tree on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/queirozrphl/rust_merkle_tree already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 425bde51fc1731074d254831f3b7c3a4ef72c03641e5aa77fee594ffdac9ea4b
[INFO] running `Command { std: "docker" "start" "-a" "425bde51fc1731074d254831f3b7c3a4ef72c03641e5aa77fee594ffdac9ea4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "425bde51fc1731074d254831f3b7c3a4ef72c03641e5aa77fee594ffdac9ea4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "425bde51fc1731074d254831f3b7c3a4ef72c03641e5aa77fee594ffdac9ea4b", kill_on_drop: false }`
[INFO] [stdout] 425bde51fc1731074d254831f3b7c3a4ef72c03641e5aa77fee594ffdac9ea4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7c48a1cf89dd2c592721488624ff5548d9d1d120a1d75d3c4a3417f01f973ad
[INFO] running `Command { std: "docker" "start" "-a" "d7c48a1cf89dd2c592721488624ff5548d9d1d120a1d75d3c4a3417f01f973ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling merkle_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/merkle_metrics.rs:21:7
[INFO] [stdout]    |
[INFO] [stdout] 21 |   for i in 0..(number_of_measurements + 1) {
[INFO] [stdout]    |       ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `merkle_tree`
[INFO] [stdout]   --> src/merkle_metrics.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let merkle_tree = merkle_tree::MerkleTree::new((&random_numbers).clone());
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_merkle_tree`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/merkle_metrics.rs:41:7
[INFO] [stdout]    |
[INFO] [stdout] 41 |   for i in 0..(number_of_measurements + 1) {
[INFO] [stdout]    |       ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `proof`
[INFO] [stdout]   --> src/merkle_metrics.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let proof: Vec<(Vec<u8>, bool)> = merkle_tree.generate_proof(random_index as u8);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_proof`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/merkle_metrics.rs:63:7
[INFO] [stdout]    |
[INFO] [stdout] 63 |   for i in 0..(number_of_measurements + 1) {
[INFO] [stdout]    |       ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_valid`
[INFO] [stdout]   --> src/merkle_metrics.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let is_valid = merkle_tree.verify_proof(proof, data_value, root_hash);
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_valid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_random_numbers` is never used
[INFO] [stdout]  --> src/merkle_metrics.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn generate_random_numbers(n: usize) -> Vec<u8> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testing_creation_time` is never used
[INFO] [stdout]   --> src/merkle_metrics.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn testing_creation_time() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testing_proof_gen_time` is never used
[INFO] [stdout]   --> src/merkle_metrics.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn testing_proof_gen_time() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testing_verify_proof_time` is never used
[INFO] [stdout]   --> src/merkle_metrics.rs:57:4
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn testing_verify_proof_time() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_metrics` is never used
[INFO] [stdout]   --> src/merkle_metrics.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub fn run_metrics() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `Command { std: "docker" "inspect" "d7c48a1cf89dd2c592721488624ff5548d9d1d120a1d75d3c4a3417f01f973ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7c48a1cf89dd2c592721488624ff5548d9d1d120a1d75d3c4a3417f01f973ad", kill_on_drop: false }`
[INFO] [stdout] d7c48a1cf89dd2c592721488624ff5548d9d1d120a1d75d3c4a3417f01f973ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8787d52d6c1838b7f1dc67380f43e9421c6d0f6317111d427a6bc385d11cc64
[INFO] running `Command { std: "docker" "start" "-a" "d8787d52d6c1838b7f1dc67380f43e9421c6d0f6317111d427a6bc385d11cc64", kill_on_drop: false }`
[INFO] [stderr]    Compiling merkle_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/merkle_metrics.rs:21:7
[INFO] [stdout]    |
[INFO] [stdout] 21 |   for i in 0..(number_of_measurements + 1) {
[INFO] [stdout]    |       ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `merkle_tree`
[INFO] [stdout]   --> src/merkle_metrics.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let merkle_tree = merkle_tree::MerkleTree::new((&random_numbers).clone());
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_merkle_tree`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/merkle_metrics.rs:41:7
[INFO] [stdout]    |
[INFO] [stdout] 41 |   for i in 0..(number_of_measurements + 1) {
[INFO] [stdout]    |       ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `proof`
[INFO] [stdout]   --> src/merkle_metrics.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let proof: Vec<(Vec<u8>, bool)> = merkle_tree.generate_proof(random_index as u8);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_proof`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/merkle_metrics.rs:63:7
[INFO] [stdout]    |
[INFO] [stdout] 63 |   for i in 0..(number_of_measurements + 1) {
[INFO] [stdout]    |       ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_valid`
[INFO] [stdout]   --> src/merkle_metrics.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let is_valid = merkle_tree.verify_proof(proof, data_value, root_hash);
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_valid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_random_numbers` is never used
[INFO] [stdout]  --> src/merkle_metrics.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn generate_random_numbers(n: usize) -> Vec<u8> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testing_creation_time` is never used
[INFO] [stdout]   --> src/merkle_metrics.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn testing_creation_time() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testing_proof_gen_time` is never used
[INFO] [stdout]   --> src/merkle_metrics.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn testing_proof_gen_time() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testing_verify_proof_time` is never used
[INFO] [stdout]   --> src/merkle_metrics.rs:57:4
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn testing_verify_proof_time() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_metrics` is never used
[INFO] [stdout]   --> src/merkle_metrics.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub fn run_metrics() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "d8787d52d6c1838b7f1dc67380f43e9421c6d0f6317111d427a6bc385d11cc64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8787d52d6c1838b7f1dc67380f43e9421c6d0f6317111d427a6bc385d11cc64", kill_on_drop: false }`
[INFO] [stdout] d8787d52d6c1838b7f1dc67380f43e9421c6d0f6317111d427a6bc385d11cc64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 10d983a05dbcc38c80066b5ef69c8647c2f686ec57ee3c749466b1536c606c4f
[INFO] running `Command { std: "docker" "start" "-a" "10d983a05dbcc38c80066b5ef69c8647c2f686ec57ee3c749466b1536c606c4f", kill_on_drop: false }`
[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] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/merkle_metrics.rs:21:7
[INFO] [stderr]    |
[INFO] [stderr] 21 |   for i in 0..(number_of_measurements + 1) {
[INFO] [stderr]    |       ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `merkle_tree`
[INFO] [stderr]   --> src/merkle_metrics.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let merkle_tree = merkle_tree::MerkleTree::new((&random_numbers).clone());
[INFO] [stderr]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_merkle_tree`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/merkle_metrics.rs:41:7
[INFO] [stderr]    |
[INFO] [stderr] 41 |   for i in 0..(number_of_measurements + 1) {
[INFO] [stderr]    |       ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `proof`
[INFO] [stderr]   --> src/merkle_metrics.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let proof: Vec<(Vec<u8>, bool)> = merkle_tree.generate_proof(random_index as u8);
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_proof`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/merkle_metrics.rs:63:7
[INFO] [stderr]    |
[INFO] [stderr] 63 |   for i in 0..(number_of_measurements + 1) {
[INFO] [stderr]    |       ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `is_valid`
[INFO] [stderr]   --> src/merkle_metrics.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let is_valid = merkle_tree.verify_proof(proof, data_value, root_hash);
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_valid`
[INFO] [stderr] 
[INFO] [stderr] warning: function `generate_random_numbers` is never used
[INFO] [stderr]  --> src/merkle_metrics.rs:5:4
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn generate_random_numbers(n: usize) -> Vec<u8> {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `testing_creation_time` is never used
[INFO] [stderr]   --> src/merkle_metrics.rs:17:4
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn testing_creation_time() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `testing_proof_gen_time` is never used
[INFO] [stderr]   --> src/merkle_metrics.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn testing_proof_gen_time() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `testing_verify_proof_time` is never used
[INFO] [stderr]   --> src/merkle_metrics.rs:57:4
[INFO] [stderr]    |
[INFO] [stderr] 57 | fn testing_verify_proof_time() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run_metrics` is never used
[INFO] [stderr]   --> src/merkle_metrics.rs:83:8
[INFO] [stderr]    |
[INFO] [stderr] 83 | pub fn run_metrics() {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `merkle_tree` (bin "merkle_tree" test) generated 11 warnings (run `cargo fix --bin "merkle_tree" -p merkle_tree --tests` to apply 6 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/merkle_tree-2e0a5b8343f59064)
[INFO] running `Command { std: "docker" "inspect" "10d983a05dbcc38c80066b5ef69c8647c2f686ec57ee3c749466b1536c606c4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10d983a05dbcc38c80066b5ef69c8647c2f686ec57ee3c749466b1536c606c4f", kill_on_drop: false }`
[INFO] [stdout] 10d983a05dbcc38c80066b5ef69c8647c2f686ec57ee3c749466b1536c606c4f