[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] 1a5040d5e87d1dfb4be098c7ac7a3dd800d9f556
[INFO] checking kcalvinalvin/rustreexo against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkcalvinalvin%2Frustreexo" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kcalvinalvin/rustreexo on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "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-9/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" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded secp256k1-sys v0.1.2
[INFO] [stderr]   Downloaded bitcoin_hashes v0.7.6
[INFO] [stderr]   Downloaded bech32 v0.7.2
[INFO] [stderr]   Downloaded secp256k1 v0.17.2
[INFO] [stderr]   Downloaded bitcoin v0.23.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ca52c18d248bdbb1c3b577b13114249c1b4d83ba0b1fe796c4a889445c0a0ad
[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" "1ca52c18d248bdbb1c3b577b13114249c1b4d83ba0b1fe796c4a889445c0a0ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ca52c18d248bdbb1c3b577b13114249c1b4d83ba0b1fe796c4a889445c0a0ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ca52c18d248bdbb1c3b577b13114249c1b4d83ba0b1fe796c4a889445c0a0ad", kill_on_drop: false }`
[INFO] [stdout] 1ca52c18d248bdbb1c3b577b13114249c1b4d83ba0b1fe796c4a889445c0a0ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8592a34fd7872ed57102be76d6085ca9cfe0276005316316c83e98eae304ad9
[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" "d8592a34fd7872ed57102be76d6085ca9cfe0276005316316c83e98eae304ad9", kill_on_drop: false }`
[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 imports: `println as info`, `println as warn`
[INFO] [stdout]    --> src/accumulator/util.rs:220:11
[INFO] [stdout]     |
[INFO] [stdout] 220 | 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 imports: `println as info`, `println as warn`
[INFO] [stdout]    --> src/accumulator/util.rs:236:19
[INFO] [stdout]     |
[INFO] [stdout] 236 |         use std::{println as info, println as warn};
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/accumulator/types.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         Hash => return hash,
[INFO] [stdout]    |         ---- matches any value
[INFO] [stdout] 51 |         // TODO actually handle this
[INFO] [stdout] 52 |         _ => panic!("parent_hash err"),
[INFO] [stdout]    |         ^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Hash`
[INFO] [stdout]   --> src/accumulator/types.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         Hash => return hash,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_Hash`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_leaves`
[INFO] [stdout]    --> src/accumulator/util.rs:182:22
[INFO] [stdout]     |
[INFO] [stdout] 182 | 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] 
[INFO] [stdout] warning: unused variable: `forest_rows`
[INFO] [stdout]    --> src/accumulator/util.rs:182:39
[INFO] [stdout]     |
[INFO] [stdout] 182 | 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: unreachable pattern
[INFO] [stdout]   --> src/accumulator/types.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         Hash => return hash,
[INFO] [stdout]    |         ---- matches any value
[INFO] [stdout] 51 |         // TODO actually handle this
[INFO] [stdout] 52 |         _ => panic!("parent_hash err"),
[INFO] [stdout]    |         ^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Hash`
[INFO] [stdout]   --> src/accumulator/types.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         Hash => return hash,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_Hash`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_leaves`
[INFO] [stdout]    --> src/accumulator/util.rs:182:22
[INFO] [stdout]     |
[INFO] [stdout] 182 | 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] 
[INFO] [stdout] warning: unused variable: `forest_rows`
[INFO] [stdout]    --> src/accumulator/util.rs:182:39
[INFO] [stdout]     |
[INFO] [stdout] 182 | 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: associated function is never used: `aunt_op`
[INFO] [stdout]   --> src/accumulator/pollard.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn aunt_op(&self) -> sha256::Hash {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `hash`
[INFO] [stdout]   --> src/accumulator/types.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     hash: HASH,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `remember`
[INFO] [stdout]   --> src/accumulator/types.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     remember: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `block_header`
[INFO] [stdout]   --> src/accumulator/types.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     block_header: HASH,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `outpoint`
[INFO] [stdout]   --> src/accumulator/types.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     outpoint: transaction::OutPoint,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `height`
[INFO] [stdout]   --> src/accumulator/types.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     height: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `is_coinbase`
[INFO] [stdout]   --> src/accumulator/types.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     is_coinbase: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `amt`
[INFO] [stdout]   --> src/accumulator/types.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     amt: i64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pk_script`
[INFO] [stdout]   --> src/accumulator/types.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pk_script: Vec<u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Arrow`
[INFO] [stdout]   --> src/accumulator/types.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct Arrow {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `detect_sub_tree_rows`
[INFO] [stdout]   --> src/accumulator/util.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn detect_sub_tree_rows(pos: u64, num_leaves: u64) -> u8 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `detect_row`
[INFO] [stdout]   --> src/accumulator/util.rs:49:4
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn detect_row(pos: u64, forest_rows: u8) -> u8 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `child`
[INFO] [stdout]   --> src/accumulator/util.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | 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:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | 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: `n_grandparent`
[INFO] [stdout]   --> src/accumulator/util.rs:92:4
[INFO] [stdout]    |
[INFO] [stdout] 92 | fn n_grandparent(pos: u64, rise: 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:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn cousin(pos: u64) -> u64 {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `tree_rows`
[INFO] [stdout]    --> src/accumulator/util.rs:131:4
[INFO] [stdout]     |
[INFO] [stdout] 131 | fn tree_rows(n: u64) -> u8 {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `num_roots`
[INFO] [stdout]    --> src/accumulator/util.rs:167:4
[INFO] [stdout]     |
[INFO] [stdout] 167 | fn num_roots(num_leaves: u64) -> u8 {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `root_position`
[INFO] [stdout]    --> src/accumulator/util.rs:173:4
[INFO] [stdout]     |
[INFO] [stdout] 173 | fn root_position(num_leaves: u64, h: u8, forest_rows: u8) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_roots_reverse`
[INFO] [stdout]    --> src/accumulator/util.rs:182:4
[INFO] [stdout]     |
[INFO] [stdout] 182 | fn get_roots_reverse(num_leaves: u64, forest_rows: u8) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sub_tree_positions`
[INFO] [stdout]    --> src/accumulator/util.rs:188:4
[INFO] [stdout]     |
[INFO] [stdout] 188 | fn sub_tree_positions() {}
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sub_tree_leafrange`
[INFO] [stdout]    --> src/accumulator/util.rs:190:4
[INFO] [stdout]     |
[INFO] [stdout] 190 | fn sub_tree_leafrange() {}
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `to_leaves`
[INFO] [stdout]    --> src/accumulator/util.rs:192:4
[INFO] [stdout]     |
[INFO] [stdout] 192 | fn to_leaves() {}
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `previous_pow2`
[INFO] [stdout]    --> src/accumulator/util.rs:196:4
[INFO] [stdout]     |
[INFO] [stdout] 196 | fn previous_pow2(n: u64) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `next_pow2`
[INFO] [stdout]    --> src/accumulator/util.rs:208:4
[INFO] [stdout]     |
[INFO] [stdout] 208 | fn next_pow2(n: u64) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `aunt_op`
[INFO] [stdout]   --> src/accumulator/pollard.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn aunt_op(&self) -> sha256::Hash {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `hash`
[INFO] [stdout]   --> src/accumulator/types.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     hash: HASH,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `remember`
[INFO] [stdout]   --> src/accumulator/types.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     remember: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `block_header`
[INFO] [stdout]   --> src/accumulator/types.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     block_header: HASH,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `outpoint`
[INFO] [stdout]   --> src/accumulator/types.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     outpoint: transaction::OutPoint,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `height`
[INFO] [stdout]   --> src/accumulator/types.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     height: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `is_coinbase`
[INFO] [stdout]   --> src/accumulator/types.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     is_coinbase: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `amt`
[INFO] [stdout]   --> src/accumulator/types.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     amt: i64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pk_script`
[INFO] [stdout]   --> src/accumulator/types.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pk_script: Vec<u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Arrow`
[INFO] [stdout]   --> src/accumulator/types.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct Arrow {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `detect_sub_tree_rows`
[INFO] [stdout]   --> src/accumulator/util.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn detect_sub_tree_rows(pos: u64, num_leaves: u64) -> u8 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Hash` should have a snake case name
[INFO] [stdout]   --> src/accumulator/types.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         Hash => return hash,
[INFO] [stdout]    |         ^^^^ help: convert the identifier to snake case: `hash`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `detect_row`
[INFO] [stdout]   --> src/accumulator/util.rs:49:4
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn detect_row(pos: u64, forest_rows: u8) -> u8 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `child`
[INFO] [stdout]   --> src/accumulator/util.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | 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:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | 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: `n_grandparent`
[INFO] [stdout]   --> src/accumulator/util.rs:92:4
[INFO] [stdout]    |
[INFO] [stdout] 92 | fn n_grandparent(pos: u64, rise: 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:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | 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:167:4
[INFO] [stdout]     |
[INFO] [stdout] 167 | fn num_roots(num_leaves: u64) -> u8 {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `root_position`
[INFO] [stdout]    --> src/accumulator/util.rs:173:4
[INFO] [stdout]     |
[INFO] [stdout] 173 | fn root_position(num_leaves: u64, h: u8, forest_rows: u8) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_roots_reverse`
[INFO] [stdout]    --> src/accumulator/util.rs:182:4
[INFO] [stdout]     |
[INFO] [stdout] 182 | fn get_roots_reverse(num_leaves: u64, forest_rows: u8) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sub_tree_positions`
[INFO] [stdout]    --> src/accumulator/util.rs:188:4
[INFO] [stdout]     |
[INFO] [stdout] 188 | fn sub_tree_positions() {}
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sub_tree_leafrange`
[INFO] [stdout]    --> src/accumulator/util.rs:190:4
[INFO] [stdout]     |
[INFO] [stdout] 190 | fn sub_tree_leafrange() {}
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `to_leaves`
[INFO] [stdout]    --> src/accumulator/util.rs:192:4
[INFO] [stdout]     |
[INFO] [stdout] 192 | fn to_leaves() {}
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `previous_pow2`
[INFO] [stdout]    --> src/accumulator/util.rs:196:4
[INFO] [stdout]     |
[INFO] [stdout] 196 | fn previous_pow2(n: u64) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Hash` should have a snake case name
[INFO] [stdout]   --> src/accumulator/types.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         Hash => return hash,
[INFO] [stdout]    |         ^^^^ help: convert the identifier to snake case: `hash`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.64s
[INFO] running `Command { std: "docker" "inspect" "d8592a34fd7872ed57102be76d6085ca9cfe0276005316316c83e98eae304ad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8592a34fd7872ed57102be76d6085ca9cfe0276005316316c83e98eae304ad9", kill_on_drop: false }`
[INFO] [stdout] d8592a34fd7872ed57102be76d6085ca9cfe0276005316316c83e98eae304ad9