[INFO] cloning repository https://github.com/evgeniy-scherbina/rust-electrumx-client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/evgeniy-scherbina/rust-electrumx-client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fevgeniy-scherbina%2Frust-electrumx-client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fevgeniy-scherbina%2Frust-electrumx-client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fbdc42557fec2b13df02630a0229f8d3096a3576
[INFO] checking evgeniy-scherbina/rust-electrumx-client against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fevgeniy-scherbina%2Frust-electrumx-client" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/evgeniy-scherbina/rust-electrumx-client on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/evgeniy-scherbina/rust-electrumx-client
[INFO] finished tweaking git repo https://github.com/evgeniy-scherbina/rust-electrumx-client
[INFO] tweaked toml for git repo https://github.com/evgeniy-scherbina/rust-electrumx-client written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/evgeniy-scherbina/rust-electrumx-client already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", 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] fa903817479213fd83db6023b05801bc4c3a6d51c1f3b199214ad695383f352d
[INFO] running `Command { std: "docker" "start" "-a" "fa903817479213fd83db6023b05801bc4c3a6d51c1f3b199214ad695383f352d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa903817479213fd83db6023b05801bc4c3a6d51c1f3b199214ad695383f352d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa903817479213fd83db6023b05801bc4c3a6d51c1f3b199214ad695383f352d", kill_on_drop: false }`
[INFO] [stdout] fa903817479213fd83db6023b05801bc4c3a6d51c1f3b199214ad695383f352d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d18ecb652e062f44e2ae25730407b3a96a5f33cc3451fbe6c59779f3fae7c8cc
[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" "d18ecb652e062f44e2ae25730407b3a96a5f33cc3451fbe6c59779f3fae7c8cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]     Checking bitcoin_hashes v0.3.2
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking secp256k1 v0.12.2
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]     Checking bitcoin v0.18.0
[INFO] [stderr]     Checking electrumx_client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/electrumx_client.rs:23:73
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn get_block_header(&mut self, height: usize) -> Result<String, Box<Error>> {
[INFO] [stdout]    |                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/electrumx_client.rs:31:111
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn get_block_headers(&mut self, start_height: usize, count: usize) -> Result<GetBlockHeadersResponse, Box<Error>> {
[INFO] [stdout]    |                                                                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/electrumx_client.rs:43:66
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn estimate_fee(&mut self, number: usize) -> Result<f64, Box<Error>> {
[INFO] [stdout]    |                                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/electrumx_client.rs:51:48
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn relay_fee(&mut self) -> Result<f64, Box<Error>> {
[INFO] [stdout]    |                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/electrumx_client.rs:59:77
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn get_balance(&mut self, addr: &str) -> Result<GetBalanceResponse, Box<Error>> {
[INFO] [stdout]    |                                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/electrumx_client.rs:69:82
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn get_history(&mut self, addr: &str) -> Result<Vec<GetHistoryResponse>, Box<Error>> {
[INFO] [stdout]    |                                                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/electrumx_client.rs:80:66
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn get_mempool(&mut self, addr: &str) -> Result<Vec<u8>, Box<Error>> {
[INFO] [stdout]    |                                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/electrumx_client.rs:90:62
[INFO] [stdout]    |
[INFO] [stdout] 90 |     fn history(&mut self, addr: &str) -> Result<Vec<u8>, Box<Error>> {
[INFO] [stdout]    |                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/electrumx_client.rs:99:91
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn get_list_unspent(&mut self, addr: &str) -> Result<Vec<GetListUnspentResponse>, Box<Error>> {
[INFO] [stdout]    |                                                                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/electrumx_client.rs:110:64
[INFO] [stdout]     |
[INFO] [stdout] 110 |     fn get_utxos(&mut self, addr: &str) -> Result<Vec<u8>, Box<Error>> {
[INFO] [stdout]     |                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/electrumx_client.rs:119:79
[INFO] [stdout]     |
[INFO] [stdout] 119 |     fn broadcast_transaction(&mut self, raw_tx: String) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/electrumx_client.rs:128:103
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn get_transaction(&mut self, tx_hash: String, verbose: bool, merkle: bool) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/electrumx_client.rs:142:97
[INFO] [stdout]     |
[INFO] [stdout] 142 |     fn get_merkle_transaction(&mut self, tx_hash: String, height: usize) -> Result<Vec<u8>, Box<Error>> {
[INFO] [stdout]     |                                                                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/electrumx_client.rs:154:110
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn transaction_id_from_pos(&mut self, height: usize, tx_pos: usize, merkle: bool) -> Result<Vec<u8>, Box<Error>> {
[INFO] [stdout]     |                                                                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/electrumx_client.rs:166:68
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn get_fee_histogram_mempool(&mut self) -> Result<Vec<u8>, Box<Error>> {
[INFO] [stdout]     |                                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/electrumx_client.rs:183:56
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn call(&mut self, req: Request) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/interface.rs:8:73
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn get_block_header(&mut self, height: usize) -> Result<String, Box<Error>>;
[INFO] [stdout]   |                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:19:111
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn get_block_headers(&mut self, start_height: usize, count: usize) -> Result<GetBlockHeadersResponse, Box<Error>>;
[INFO] [stdout]    |                                                                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:25:66
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn estimate_fee(&mut self, number: usize) -> Result<f64, Box<Error>>;
[INFO] [stdout]    |                                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:31:48
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn relay_fee(&mut self) -> Result<f64, Box<Error>>;
[INFO] [stdout]    |                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:36:77
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn get_balance(&mut self, addr: &str) -> Result<GetBalanceResponse, Box<Error>>;
[INFO] [stdout]    |                                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:44:82
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn get_history(&mut self, addr: &str) -> Result<Vec<GetHistoryResponse>, Box<Error>>;
[INFO] [stdout]    |                                                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:45:66
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn get_mempool(&mut self, addr: &str) -> Result<Vec<u8>, Box<Error>>;
[INFO] [stdout]    |                                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:46:62
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn history(&mut self, addr: &str) -> Result<Vec<u8>, Box<Error>>;
[INFO] [stdout]    |                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:47:91
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn get_list_unspent(&mut self, addr: &str) -> Result<Vec<GetListUnspentResponse>, Box<Error>>;
[INFO] [stdout]    |                                                                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:48:64
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn get_utxos(&mut self, addr: &str) -> Result<Vec<u8>, Box<Error>>;
[INFO] [stdout]    |                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:49:79
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn broadcast_transaction(&mut self, raw_tx: String) -> Result<String, Box<Error>>;
[INFO] [stdout]    |                                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:50:103
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn get_transaction(&mut self, tx_hash: String, verbose: bool, merkle: bool) -> Result<String, Box<Error>>;
[INFO] [stdout]    |                                                                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:51:97
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn get_merkle_transaction(&mut self, tx_hash: String, height: usize) -> Result<Vec<u8>, Box<Error>>;
[INFO] [stdout]    |                                                                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:52:110
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn transaction_id_from_pos(&mut self, height: usize, tx_pos: usize, merkle: bool) -> Result<Vec<u8>, Box<Error>>;
[INFO] [stdout]    |                                                                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:53:68
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn get_fee_histogram_mempool(&mut self) -> Result<Vec<u8>, Box<Error>>;
[INFO] [stdout]    |                                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/electrumx_client.rs:23:73
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn get_block_header(&mut self, height: usize) -> Result<String, Box<Error>> {
[INFO] [stdout]    |                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/electrumx_client.rs:31:111
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn get_block_headers(&mut self, start_height: usize, count: usize) -> Result<GetBlockHeadersResponse, Box<Error>> {
[INFO] [stdout]    |                                                                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/electrumx_client.rs:43:66
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn estimate_fee(&mut self, number: usize) -> Result<f64, Box<Error>> {
[INFO] [stdout]    |                                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/electrumx_client.rs:51:48
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn relay_fee(&mut self) -> Result<f64, Box<Error>> {
[INFO] [stdout]    |                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/electrumx_client.rs:59:77
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn get_balance(&mut self, addr: &str) -> Result<GetBalanceResponse, Box<Error>> {
[INFO] [stdout]    |                                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/electrumx_client.rs:69:82
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn get_history(&mut self, addr: &str) -> Result<Vec<GetHistoryResponse>, Box<Error>> {
[INFO] [stdout]    |                                                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/electrumx_client.rs:80:66
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn get_mempool(&mut self, addr: &str) -> Result<Vec<u8>, Box<Error>> {
[INFO] [stdout]    |                                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/electrumx_client.rs:90:62
[INFO] [stdout]    |
[INFO] [stdout] 90 |     fn history(&mut self, addr: &str) -> Result<Vec<u8>, Box<Error>> {
[INFO] [stdout]    |                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/electrumx_client.rs:99:91
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn get_list_unspent(&mut self, addr: &str) -> Result<Vec<GetListUnspentResponse>, Box<Error>> {
[INFO] [stdout]    |                                                                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/electrumx_client.rs:110:64
[INFO] [stdout]     |
[INFO] [stdout] 110 |     fn get_utxos(&mut self, addr: &str) -> Result<Vec<u8>, Box<Error>> {
[INFO] [stdout]     |                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/electrumx_client.rs:119:79
[INFO] [stdout]     |
[INFO] [stdout] 119 |     fn broadcast_transaction(&mut self, raw_tx: String) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/electrumx_client.rs:128:103
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn get_transaction(&mut self, tx_hash: String, verbose: bool, merkle: bool) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/electrumx_client.rs:142:97
[INFO] [stdout]     |
[INFO] [stdout] 142 |     fn get_merkle_transaction(&mut self, tx_hash: String, height: usize) -> Result<Vec<u8>, Box<Error>> {
[INFO] [stdout]     |                                                                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/electrumx_client.rs:154:110
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn transaction_id_from_pos(&mut self, height: usize, tx_pos: usize, merkle: bool) -> Result<Vec<u8>, Box<Error>> {
[INFO] [stdout]     |                                                                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/electrumx_client.rs:166:68
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn get_fee_histogram_mempool(&mut self) -> Result<Vec<u8>, Box<Error>> {
[INFO] [stdout]     |                                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/electrumx_client.rs:183:56
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn call(&mut self, req: Request) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/interface.rs:8:73
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn get_block_header(&mut self, height: usize) -> Result<String, Box<Error>>;
[INFO] [stdout]   |                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:19:111
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn get_block_headers(&mut self, start_height: usize, count: usize) -> Result<GetBlockHeadersResponse, Box<Error>>;
[INFO] [stdout]    |                                                                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:25:66
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn estimate_fee(&mut self, number: usize) -> Result<f64, Box<Error>>;
[INFO] [stdout]    |                                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:31:48
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn relay_fee(&mut self) -> Result<f64, Box<Error>>;
[INFO] [stdout]    |                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:36:77
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn get_balance(&mut self, addr: &str) -> Result<GetBalanceResponse, Box<Error>>;
[INFO] [stdout]    |                                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:44:82
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn get_history(&mut self, addr: &str) -> Result<Vec<GetHistoryResponse>, Box<Error>>;
[INFO] [stdout]    |                                                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:45:66
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn get_mempool(&mut self, addr: &str) -> Result<Vec<u8>, Box<Error>>;
[INFO] [stdout]    |                                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:46:62
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn history(&mut self, addr: &str) -> Result<Vec<u8>, Box<Error>>;
[INFO] [stdout]    |                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:47:91
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn get_list_unspent(&mut self, addr: &str) -> Result<Vec<GetListUnspentResponse>, Box<Error>>;
[INFO] [stdout]    |                                                                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:48:64
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn get_utxos(&mut self, addr: &str) -> Result<Vec<u8>, Box<Error>>;
[INFO] [stdout]    |                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:49:79
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn broadcast_transaction(&mut self, raw_tx: String) -> Result<String, Box<Error>>;
[INFO] [stdout]    |                                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:50:103
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn get_transaction(&mut self, tx_hash: String, verbose: bool, merkle: bool) -> Result<String, Box<Error>>;
[INFO] [stdout]    |                                                                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:51:97
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn get_merkle_transaction(&mut self, tx_hash: String, height: usize) -> Result<Vec<u8>, Box<Error>>;
[INFO] [stdout]    |                                                                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:52:110
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn transaction_id_from_pos(&mut self, height: usize, tx_pos: usize, merkle: bool) -> Result<Vec<u8>, Box<Error>>;
[INFO] [stdout]    |                                                                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interface.rs:53:68
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn get_fee_histogram_mempool(&mut self) -> Result<Vec<u8>, Box<Error>>;
[INFO] [stdout]    |                                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 31 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 31 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.30s
[INFO] running `Command { std: "docker" "inspect" "d18ecb652e062f44e2ae25730407b3a96a5f33cc3451fbe6c59779f3fae7c8cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d18ecb652e062f44e2ae25730407b3a96a5f33cc3451fbe6c59779f3fae7c8cc", kill_on_drop: false }`
[INFO] [stdout] d18ecb652e062f44e2ae25730407b3a96a5f33cc3451fbe6c59779f3fae7c8cc