[INFO] cloning repository https://github.com/kcalvinalvin/rustreexo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kcalvinalvin/rustreexo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkcalvinalvin%2Frustreexo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkcalvinalvin%2Frustreexo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7fa88a0d8371fc1a2ff4c27a1c2e112d048d9cd5
[INFO] checking kcalvinalvin/rustreexo against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkcalvinalvin%2Frustreexo" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kcalvinalvin/rustreexo on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kcalvinalvin/rustreexo
[INFO] finished tweaking git repo https://github.com/kcalvinalvin/rustreexo
[INFO] tweaked toml for git repo https://github.com/kcalvinalvin/rustreexo written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/kcalvinalvin/rustreexo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6c404058b32a6481d4c9e59eef884925d52164652638bbcd74b3d4ff2b886cf
[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" "f6c404058b32a6481d4c9e59eef884925d52164652638bbcd74b3d4ff2b886cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6c404058b32a6481d4c9e59eef884925d52164652638bbcd74b3d4ff2b886cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6c404058b32a6481d4c9e59eef884925d52164652638bbcd74b3d4ff2b886cf", kill_on_drop: false }`
[INFO] [stdout] f6c404058b32a6481d4c9e59eef884925d52164652638bbcd74b3d4ff2b886cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0bb91f3cb60c23cee1ed67e007c4b300b7e67cc88eefcf412f199dc3a617191
[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" "e0bb91f3cb60c23cee1ed67e007c4b300b7e67cc88eefcf412f199dc3a617191", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]     Checking bitcoin_hashes v0.7.6
[INFO] [stderr]     Checking bech32 v0.7.2
[INFO] [stderr]    Compiling secp256k1-sys v0.1.2
[INFO] [stderr]     Checking secp256k1 v0.17.2
[INFO] [stderr]     Checking bitcoin v0.23.0
[INFO] [stderr]     Checking rustreexo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/accumulator/pollard.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashEngine`
[INFO] [stdout]   --> src/accumulator/pollard.rs:12:37
[INFO] [stdout]    |
[INFO] [stdout] 12 | use bitcoin::hashes::{sha256, Hash, HashEngine};
[INFO] [stdout]    |                                     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `println as info`, `println as warn`
[INFO] [stdout]    --> src/accumulator/util.rs:278:11
[INFO] [stdout]     |
[INFO] [stdout] 278 | use std::{println as info, println as warn};
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/accumulator/pollard.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashEngine`
[INFO] [stdout]   --> src/accumulator/pollard.rs:12:37
[INFO] [stdout]    |
[INFO] [stdout] 12 | use bitcoin::hashes::{sha256, Hash, HashEngine};
[INFO] [stdout]    |                                     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]    --> src/accumulator/pollard.rs:415:13
[INFO] [stdout]     |
[INFO] [stdout] 415 |         use std::mem;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Hash`
[INFO] [stdout]   --> src/accumulator/pollard.rs:12:31
[INFO] [stdout]    |
[INFO] [stdout] 12 | use bitcoin::hashes::{sha256, Hash, HashEngine};
[INFO] [stdout]    |                               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_leaves`
[INFO] [stdout]    --> src/accumulator/util.rs:240:22
[INFO] [stdout]     |
[INFO] [stdout] 240 | fn get_roots_reverse(num_leaves: u64, forest_rows: u8) {
[INFO] [stdout]     |                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_leaves`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `forest_rows`
[INFO] [stdout]    --> src/accumulator/util.rs:240:39
[INFO] [stdout]     |
[INFO] [stdout] 240 | fn get_roots_reverse(num_leaves: u64, forest_rows: u8) {
[INFO] [stdout]     |                                       ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_forest_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value passed to `p_node_sib` is never read
[INFO] [stdout]    --> src/accumulator/pollard.rs:153:44
[INFO] [stdout]     |
[INFO] [stdout] 153 |         fn grab_niece(mut p_node: PolNode, mut p_node_sib: PolNode, branch_len: u8, bits: u64) -> Option<(PolNode, PolNode, u8)> {
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `remember`
[INFO] [stdout]   --> src/accumulator/pollard.rs:69:50
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn add_single(&mut self, utxo: sha256::Hash, remember: bool) {
[INFO] [stdout]    |                                                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_remember`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `leaves_after_del`
[INFO] [stdout]    --> src/accumulator/pollard.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |         let leaves_after_del = self.num_leaves - dels.len() as u64;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_leaves_after_del`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/accumulator/pollard.rs:127:26
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn remove(&mut self, mut dels: Vec<u64>) {
[INFO] [stdout]     |                          ----^^^^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `row_offset`
[INFO] [stdout]   --> src/accumulator/util.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn row_offset(row: u8, forest_rows: u8) -> u64 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `child`
[INFO] [stdout]    --> src/accumulator/util.rs:124:4
[INFO] [stdout]     |
[INFO] [stdout] 124 | fn child(pos: u64, forest_rows: u8) -> u64 {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `n_grandchild`
[INFO] [stdout]    --> src/accumulator/util.rs:132:4
[INFO] [stdout]     |
[INFO] [stdout] 132 | fn n_grandchild(pos: u64, drop: u8, forest_rows: u8) -> Result<u64, u8> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cousin`
[INFO] [stdout]    --> src/accumulator/util.rs:166:4
[INFO] [stdout]     |
[INFO] [stdout] 166 | fn cousin(pos: u64) -> u64 {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `num_roots`
[INFO] [stdout]    --> src/accumulator/util.rs:216:4
[INFO] [stdout]     |
[INFO] [stdout] 216 | fn num_roots(num_leaves: u64) -> u8 {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_roots_reverse`
[INFO] [stdout]    --> src/accumulator/util.rs:240:4
[INFO] [stdout]     |
[INFO] [stdout] 240 | fn get_roots_reverse(num_leaves: u64, forest_rows: u8) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `subtree_positions`
[INFO] [stdout]    --> src/accumulator/util.rs:246:4
[INFO] [stdout]     |
[INFO] [stdout] 246 | fn subtree_positions() {}
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `subtree_leafrange`
[INFO] [stdout]    --> src/accumulator/util.rs:248:4
[INFO] [stdout]     |
[INFO] [stdout] 248 | fn subtree_leafrange() {}
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `to_leaves`
[INFO] [stdout]    --> src/accumulator/util.rs:250:4
[INFO] [stdout]     |
[INFO] [stdout] 250 | fn to_leaves() {}
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `previous_pow2`
[INFO] [stdout]    --> src/accumulator/util.rs:254:4
[INFO] [stdout]     |
[INFO] [stdout] 254 | fn previous_pow2(n: u64) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `block_header`
[INFO] [stdout]   --> src/accumulator/types.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     block_header: HASH,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `outpoint`
[INFO] [stdout]   --> src/accumulator/types.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     outpoint: transaction::OutPoint,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `height`
[INFO] [stdout]   --> src/accumulator/types.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     height: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `is_coinbase`
[INFO] [stdout]   --> src/accumulator/types.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     is_coinbase: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `amt`
[INFO] [stdout]   --> src/accumulator/types.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     amt: i64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pk_script`
[INFO] [stdout]   --> src/accumulator/types.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pk_script: Vec<u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `grab_pos`
[INFO] [stdout]    --> src/accumulator/pollard.rs:151:8
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn grab_pos(&mut self, pos: u64) -> Option<(PolNode, PolNode, HashableNode)> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `grab_niece`
[INFO] [stdout]    --> src/accumulator/pollard.rs:153:12
[INFO] [stdout]     |
[INFO] [stdout] 153 |         fn grab_niece(mut p_node: PolNode, mut p_node_sib: PolNode, branch_len: u8, bits: u64) -> Option<(PolNode, PolNode, u8)> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `aunt_op`
[INFO] [stdout]    --> src/accumulator/pollard.rs:244:8
[INFO] [stdout]     |
[INFO] [stdout] 244 |     fn aunt_op(&self) -> sha256::Hash {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pol_swap`
[INFO] [stdout]    --> src/accumulator/pollard.rs:293:4
[INFO] [stdout]     |
[INFO] [stdout] 293 | fn pol_swap<'a, 'b>(mut a: &'a mut PolNode, mut asib: &'b mut PolNode, mut b: &'a mut PolNode, mut bsib: &'b mut PolNode) {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Hash`
[INFO] [stdout]   --> src/accumulator/pollard.rs:12:31
[INFO] [stdout]    |
[INFO] [stdout] 12 | use bitcoin::hashes::{sha256, Hash, HashEngine};
[INFO] [stdout]    |                               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_leaves`
[INFO] [stdout]    --> src/accumulator/util.rs:240:22
[INFO] [stdout]     |
[INFO] [stdout] 240 | fn get_roots_reverse(num_leaves: u64, forest_rows: u8) {
[INFO] [stdout]     |                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_leaves`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `forest_rows`
[INFO] [stdout]    --> src/accumulator/util.rs:240:39
[INFO] [stdout]     |
[INFO] [stdout] 240 | fn get_roots_reverse(num_leaves: u64, forest_rows: u8) {
[INFO] [stdout]     |                                       ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_forest_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value passed to `p_node_sib` is never read
[INFO] [stdout]    --> src/accumulator/pollard.rs:153:44
[INFO] [stdout]     |
[INFO] [stdout] 153 |         fn grab_niece(mut p_node: PolNode, mut p_node_sib: PolNode, branch_len: u8, bits: u64) -> Option<(PolNode, PolNode, u8)> {
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `remember`
[INFO] [stdout]   --> src/accumulator/pollard.rs:69:50
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn add_single(&mut self, utxo: sha256::Hash, remember: bool) {
[INFO] [stdout]    |                                                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_remember`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `leaves_after_del`
[INFO] [stdout]    --> src/accumulator/pollard.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |         let leaves_after_del = self.num_leaves - dels.len() as u64;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_leaves_after_del`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `h1_copy`
[INFO] [stdout]    --> src/accumulator/pollard.rs:421:13
[INFO] [stdout]     |
[INFO] [stdout] 421 |         let h1_copy = h1.clone();
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_h1_copy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `h2_copy`
[INFO] [stdout]    --> src/accumulator/pollard.rs:427:13
[INFO] [stdout]     |
[INFO] [stdout] 427 |         let h2_copy = h2.clone();
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_h2_copy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `h3_copy`
[INFO] [stdout]    --> src/accumulator/pollard.rs:433:13
[INFO] [stdout]     |
[INFO] [stdout] 433 |         let h3_copy = h3.clone();
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_h3_copy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `h4_copy`
[INFO] [stdout]    --> src/accumulator/pollard.rs:439:13
[INFO] [stdout]     |
[INFO] [stdout] 439 |         let h4_copy = h4.clone();
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_h4_copy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/accumulator/pollard.rs:127:26
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn remove(&mut self, mut dels: Vec<u64>) {
[INFO] [stdout]     |                          ----^^^^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `child`
[INFO] [stdout]    --> src/accumulator/util.rs:124:4
[INFO] [stdout]     |
[INFO] [stdout] 124 | fn child(pos: u64, forest_rows: u8) -> u64 {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `n_grandchild`
[INFO] [stdout]    --> src/accumulator/util.rs:132:4
[INFO] [stdout]     |
[INFO] [stdout] 132 | fn n_grandchild(pos: u64, drop: u8, forest_rows: u8) -> Result<u64, u8> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cousin`
[INFO] [stdout]    --> src/accumulator/util.rs:166:4
[INFO] [stdout]     |
[INFO] [stdout] 166 | fn cousin(pos: u64) -> u64 {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `num_roots`
[INFO] [stdout]    --> src/accumulator/util.rs:216:4
[INFO] [stdout]     |
[INFO] [stdout] 216 | fn num_roots(num_leaves: u64) -> u8 {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_roots_reverse`
[INFO] [stdout]    --> src/accumulator/util.rs:240:4
[INFO] [stdout]     |
[INFO] [stdout] 240 | fn get_roots_reverse(num_leaves: u64, forest_rows: u8) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `subtree_positions`
[INFO] [stdout]    --> src/accumulator/util.rs:246:4
[INFO] [stdout]     |
[INFO] [stdout] 246 | fn subtree_positions() {}
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `subtree_leafrange`
[INFO] [stdout]    --> src/accumulator/util.rs:248:4
[INFO] [stdout]     |
[INFO] [stdout] 248 | fn subtree_leafrange() {}
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `to_leaves`
[INFO] [stdout]    --> src/accumulator/util.rs:250:4
[INFO] [stdout]     |
[INFO] [stdout] 250 | fn to_leaves() {}
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `previous_pow2`
[INFO] [stdout]    --> src/accumulator/util.rs:254:4
[INFO] [stdout]     |
[INFO] [stdout] 254 | fn previous_pow2(n: u64) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `block_header`
[INFO] [stdout]   --> src/accumulator/types.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     block_header: HASH,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `outpoint`
[INFO] [stdout]   --> src/accumulator/types.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     outpoint: transaction::OutPoint,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `height`
[INFO] [stdout]   --> src/accumulator/types.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     height: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `is_coinbase`
[INFO] [stdout]   --> src/accumulator/types.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     is_coinbase: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `amt`
[INFO] [stdout]   --> src/accumulator/types.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     amt: i64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pk_script`
[INFO] [stdout]   --> src/accumulator/types.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pk_script: Vec<u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `grab_pos`
[INFO] [stdout]    --> src/accumulator/pollard.rs:151:8
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn grab_pos(&mut self, pos: u64) -> Option<(PolNode, PolNode, HashableNode)> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `grab_niece`
[INFO] [stdout]    --> src/accumulator/pollard.rs:153:12
[INFO] [stdout]     |
[INFO] [stdout] 153 |         fn grab_niece(mut p_node: PolNode, mut p_node_sib: PolNode, branch_len: u8, bits: u64) -> Option<(PolNode, PolNode, u8)> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `aunt_op`
[INFO] [stdout]    --> src/accumulator/pollard.rs:244:8
[INFO] [stdout]     |
[INFO] [stdout] 244 |     fn aunt_op(&self) -> sha256::Hash {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pol_swap`
[INFO] [stdout]    --> src/accumulator/pollard.rs:293:4
[INFO] [stdout]     |
[INFO] [stdout] 293 | fn pol_swap<'a, 'b>(mut a: &'a mut PolNode, mut asib: &'b mut PolNode, mut b: &'a mut PolNode, mut bsib: &'b mut PolNode) {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `check_root`
[INFO] [stdout]    --> src/accumulator/pollard.rs:356:8
[INFO] [stdout]     |
[INFO] [stdout] 356 |     fn check_root() {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_pol_del`
[INFO] [stdout]    --> src/accumulator/pollard.rs:359:8
[INFO] [stdout]     |
[INFO] [stdout] 359 |     fn test_pol_del() {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 36 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.24s
[INFO] running `Command { std: "docker" "inspect" "e0bb91f3cb60c23cee1ed67e007c4b300b7e67cc88eefcf412f199dc3a617191", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0bb91f3cb60c23cee1ed67e007c4b300b7e67cc88eefcf412f199dc3a617191", kill_on_drop: false }`
[INFO] [stdout] e0bb91f3cb60c23cee1ed67e007c4b300b7e67cc88eefcf412f199dc3a617191