[INFO] cloning repository https://github.com/prahaladbelavadi/bitcoin-rust-experimenting
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/prahaladbelavadi/bitcoin-rust-experimenting" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprahaladbelavadi%2Fbitcoin-rust-experimenting", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprahaladbelavadi%2Fbitcoin-rust-experimenting'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fa6066cc42baa371b5e61e9ccc75965cbf3582b7
[INFO] checking prahaladbelavadi/bitcoin-rust-experimenting against try#8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprahaladbelavadi%2Fbitcoin-rust-experimenting" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/prahaladbelavadi/bitcoin-rust-experimenting on toolchain 8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/prahaladbelavadi/bitcoin-rust-experimenting
[INFO] finished tweaking git repo https://github.com/prahaladbelavadi/bitcoin-rust-experimenting
[INFO] tweaked toml for git repo https://github.com/prahaladbelavadi/bitcoin-rust-experimenting written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/prahaladbelavadi/bitcoin-rust-experimenting already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitcoin_hashes v0.9.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "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] fb6682bf596863b9314ae191a4174107d61499a0cb88258b00ecfe630aac097a
[INFO] running `Command { std: "docker" "start" "-a" "fb6682bf596863b9314ae191a4174107d61499a0cb88258b00ecfe630aac097a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb6682bf596863b9314ae191a4174107d61499a0cb88258b00ecfe630aac097a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb6682bf596863b9314ae191a4174107d61499a0cb88258b00ecfe630aac097a", kill_on_drop: false }`
[INFO] [stdout] fb6682bf596863b9314ae191a4174107d61499a0cb88258b00ecfe630aac097a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b745b98f037d70ca68baead2d9c2e2ebc7961706a5b0bac8b12555bef70c9d72
[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" "b745b98f037d70ca68baead2d9c2e2ebc7961706a5b0bac8b12555bef70c9d72", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]     Checking bitcoin_hashes v0.9.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling secp256k1-sys v0.4.0
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking secp256k1 v0.20.2
[INFO] [stderr]     Checking bitcoin-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stdout]    --> src/bitcoin.rs:255:12
[INFO] [stdout]     |
[INFO] [stdout] 255 | use rand::{thread_rng, Rng};
[INFO] [stdout]     |            ^^^^^^^^^^  ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stdout]    --> src/bitcoin.rs:255:12
[INFO] [stdout]     |
[INFO] [stdout] 255 | use rand::{thread_rng, Rng};
[INFO] [stdout]     |            ^^^^^^^^^^  ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `public_key`
[INFO] [stdout]    --> src/bitcoin.rs:270:20
[INFO] [stdout]     |
[INFO] [stdout] 270 |   let (secret_key, public_key) = secp.generate_keypair(&mut rng);
[INFO] [stdout]     |                    ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_public_key`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_keys`
[INFO] [stdout]    --> src/bitcoin.rs:262:8
[INFO] [stdout]     |
[INFO] [stdout] 262 | pub fn create_keys()->Result<String,String>{
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sign`
[INFO] [stdout]    --> src/bitcoin.rs:275:8
[INFO] [stdout]     |
[INFO] [stdout] 275 | pub fn sign(priv_key:&str, message:&str)->Result<String, String>{
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `public_key`
[INFO] [stdout]    --> src/bitcoin.rs:270:20
[INFO] [stdout]     |
[INFO] [stdout] 270 |   let (secret_key, public_key) = secp.generate_keypair(&mut rng);
[INFO] [stdout]     |                    ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_public_key`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.40s
[INFO] running `Command { std: "docker" "inspect" "b745b98f037d70ca68baead2d9c2e2ebc7961706a5b0bac8b12555bef70c9d72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b745b98f037d70ca68baead2d9c2e2ebc7961706a5b0bac8b12555bef70c9d72", kill_on_drop: false }`
[INFO] [stdout] b745b98f037d70ca68baead2d9c2e2ebc7961706a5b0bac8b12555bef70c9d72