[INFO] cloning repository https://github.com/ikeogu/bit-wallet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ikeogu/bit-wallet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikeogu%2Fbit-wallet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikeogu%2Fbit-wallet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 66b784265ffcbfc169bc0791c0683ec2df409dd5
[INFO] checking ikeogu/bit-wallet against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikeogu%2Fbit-wallet" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ikeogu/bit-wallet on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ikeogu/bit-wallet
[INFO] finished tweaking git repo https://github.com/ikeogu/bit-wallet
[INFO] tweaked toml for git repo https://github.com/ikeogu/bit-wallet written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ikeogu/bit-wallet 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e6ed5003090215bf762eb89b4f08f1df1eff66c636bb4075128601970fb54c7
[INFO] running `Command { std: "docker" "start" "-a" "7e6ed5003090215bf762eb89b4f08f1df1eff66c636bb4075128601970fb54c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e6ed5003090215bf762eb89b4f08f1df1eff66c636bb4075128601970fb54c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e6ed5003090215bf762eb89b4f08f1df1eff66c636bb4075128601970fb54c7", kill_on_drop: false }`
[INFO] [stdout] 7e6ed5003090215bf762eb89b4f08f1df1eff66c636bb4075128601970fb54c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69b437a313ef8ced25284304a6f2c7a412f3db78f50a5857e86427d75f91fbef
[INFO] running `Command { std: "docker" "start" "-a" "69b437a313ef8ced25284304a6f2c7a412f3db78f50a5857e86427d75f91fbef", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
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[INFO] [stderr]     Checking bitcoincore-rpc v0.18.0
[INFO] [stderr]     Checking bit_wallet_solution v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `network`
[INFO] [stdout]   --> src/bitcoin_rpc_client.rs:10:63
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(rpc_url: &str, rpc_user: &str, rpc_pass: &str, network: bitcoincore_rpc::bitcoin::Network) -> Result<Self, Box<dyn Error>> {
[INFO] [stdout]    |                                                               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_network`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `network`
[INFO] [stdout]   --> src/bitcoin_rpc_client.rs:10:63
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(rpc_url: &str, rpc_user: &str, rpc_pass: &str, network: bitcoincore_rpc::bitcoin::Network) -> Result<Self, Box<dyn Error>> {
[INFO] [stdout]    |                                                               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_network`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `secp`
[INFO] [stdout]   --> src/wallet.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let secp = Secp256k1::new();
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_secp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `secp`
[INFO] [stdout]   --> src/wallet.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let secp = Secp256k1::new();
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_secp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BitcoinRPC` is never constructed
[INFO] [stdout]  --> src/bitcoin_rpc_client.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct BitcoinRPC {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BitcoinRPC` is never constructed
[INFO] [stdout]  --> src/bitcoin_rpc_client.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct BitcoinRPC {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `get_blockchain_info` are never used
[INFO] [stdout]   --> src/bitcoin_rpc_client.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl BitcoinRPC {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn new(rpc_url: &str, rpc_user: &str, rpc_pass: &str, network: bitcoincore_rpc::bitcoin::Network) -> Result<Self, Box<dyn Error>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn get_blockchain_info(&self) -> Result<bitcoincore_rpc::json::GetBlockchainInfoResult, bitcoincore_rpc::Error> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `get_blockchain_info` are never used
[INFO] [stdout]   --> src/bitcoin_rpc_client.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl BitcoinRPC {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn new(rpc_url: &str, rpc_user: &str, rpc_pass: &str, network: bitcoincore_rpc::bitcoin::Network) -> Result<Self, Box<dyn Error>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn get_blockchain_info(&self) -> Result<bitcoincore_rpc::json::GetBlockchainInfoResult, bitcoincore_rpc::Error> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.54s
[INFO] running `Command { std: "docker" "inspect" "69b437a313ef8ced25284304a6f2c7a412f3db78f50a5857e86427d75f91fbef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69b437a313ef8ced25284304a6f2c7a412f3db78f50a5857e86427d75f91fbef", kill_on_drop: false }`
[INFO] [stdout] 69b437a313ef8ced25284304a6f2c7a412f3db78f50a5857e86427d75f91fbef