[INFO] cloning repository https://github.com/Sahan-g/PoW-Blockchain_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Sahan-g/PoW-Blockchain_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSahan-g%2FPoW-Blockchain_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSahan-g%2FPoW-Blockchain_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 520588ba6b43829bcd1ee3a7e2e658232ed7fb17
[INFO] building Sahan-g/PoW-Blockchain_rust against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSahan-g%2FPoW-Blockchain_rust" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Sahan-g/PoW-Blockchain_rust
[INFO] finished tweaking git repo https://github.com/Sahan-g/PoW-Blockchain_rust
[INFO] tweaked toml for git repo https://github.com/Sahan-g/PoW-Blockchain_rust written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Sahan-g/PoW-Blockchain_rust on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Sahan-g/PoW-Blockchain_rust 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa74170f1fa7e3243f441dd20f7616ed71f6f2400a4acce165eea40692b7cfa6
[INFO] running `Command { std: "docker" "start" "-a" "aa74170f1fa7e3243f441dd20f7616ed71f6f2400a4acce165eea40692b7cfa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa74170f1fa7e3243f441dd20f7616ed71f6f2400a4acce165eea40692b7cfa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa74170f1fa7e3243f441dd20f7616ed71f6f2400a4acce165eea40692b7cfa6", kill_on_drop: false }`
[INFO] [stdout] aa74170f1fa7e3243f441dd20f7616ed71f6f2400a4acce165eea40692b7cfa6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25ca9a8c87d15023d87c22ef38fd046dff892769f91cd1eedf489c26f5e262ae
[INFO] running `Command { std: "docker" "start" "-a" "25ca9a8c87d15023d87c22ef38fd046dff892769f91cd1eedf489c26f5e262ae", kill_on_drop: false }`
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[INFO] [stderr]    Compiling libp2p-yamux v0.34.0
[INFO] [stderr]    Compiling libp2p-websocket v0.31.0
[INFO] [stderr]    Compiling libp2p-dns v0.30.0
[INFO] [stderr]    Compiling libp2p-uds v0.30.0
[INFO] [stderr]    Compiling libp2p-ping v0.31.0
[INFO] [stderr]    Compiling libp2p-mdns v0.32.0
[INFO] [stderr]    Compiling libp2p-request-response v0.13.0
[INFO] [stderr]    Compiling libp2p-metrics v0.1.0
[INFO] [stderr]    Compiling libp2p v0.40.0
[INFO] [stderr]    Compiling blockchain_rust_pow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Read` and `Write`
[INFO] [stdout]  --> src/main.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peer`
[INFO] [stdout]    --> src/main.rs:292:29
[INFO] [stdout]     |
[INFO] [stdout] 292 |                         for peer in peers {
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_peer`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `init_sender` is never read
[INFO] [stdout]   --> src/blockchain.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct AppBehaviour {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub init_sender: mpsc::UnboundedSender<bool>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/blockchain.rs:53:14
[INFO] [stdout]    |
[INFO] [stdout] 53 |     Floodsub(FloodsubEvent),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 53 -     Floodsub(FloodsubEvent),
[INFO] [stdout] 53 +     Floodsub(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/blockchain.rs:54:10
[INFO] [stdout]    |
[INFO] [stdout] 54 |     Mdns(MdnsEvent),
[INFO] [stdout]    |     ---- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 54 -     Mdns(MdnsEvent),
[INFO] [stdout] 54 +     Mdns(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ChainResponse`, `Input`, and `Init` are never constructed
[INFO] [stdout]   --> src/blockchain.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub enum Event {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 52 |     ChainResponse(ChainResponse),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     Input(String),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 56 |     Init,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 20s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: snow v0.8.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "25ca9a8c87d15023d87c22ef38fd046dff892769f91cd1eedf489c26f5e262ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25ca9a8c87d15023d87c22ef38fd046dff892769f91cd1eedf489c26f5e262ae", kill_on_drop: false }`
[INFO] [stdout] 25ca9a8c87d15023d87c22ef38fd046dff892769f91cd1eedf489c26f5e262ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 516f378e11620a205f203778148352614a787c196b543fc3f98d78da1f0327a5
[INFO] running `Command { std: "docker" "start" "-a" "516f378e11620a205f203778148352614a787c196b543fc3f98d78da1f0327a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling blockchain_rust_pow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Read` and `Write`
[INFO] [stdout]  --> src/main.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peer`
[INFO] [stdout]    --> src/main.rs:292:29
[INFO] [stdout]     |
[INFO] [stdout] 292 |                         for peer in peers {
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_peer`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `init_sender` is never read
[INFO] [stdout]   --> src/blockchain.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct AppBehaviour {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub init_sender: mpsc::UnboundedSender<bool>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/blockchain.rs:53:14
[INFO] [stdout]    |
[INFO] [stdout] 53 |     Floodsub(FloodsubEvent),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 53 -     Floodsub(FloodsubEvent),
[INFO] [stdout] 53 +     Floodsub(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/blockchain.rs:54:10
[INFO] [stdout]    |
[INFO] [stdout] 54 |     Mdns(MdnsEvent),
[INFO] [stdout]    |     ---- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 54 -     Mdns(MdnsEvent),
[INFO] [stdout] 54 +     Mdns(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ChainResponse`, `Input`, and `Init` are never constructed
[INFO] [stdout]   --> src/blockchain.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub enum Event {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 52 |     ChainResponse(ChainResponse),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     Input(String),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 56 |     Init,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.02s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: snow v0.8.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "516f378e11620a205f203778148352614a787c196b543fc3f98d78da1f0327a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "516f378e11620a205f203778148352614a787c196b543fc3f98d78da1f0327a5", kill_on_drop: false }`
[INFO] [stdout] 516f378e11620a205f203778148352614a787c196b543fc3f98d78da1f0327a5