[INFO] cloning repository https://github.com/TonyYanTony/blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TonyYanTony/blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTonyYanTony%2Fblockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTonyYanTony%2Fblockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 77f9acbcdd5bc7e4b219fe7bb104e159c773623f
[INFO] building TonyYanTony/blockchain against try#58b1b3c5342a414c161338871f8004258ccef2a7 for pr-149937
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTonyYanTony%2Fblockchain" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/TonyYanTony/blockchain
[INFO] finished tweaking git repo https://github.com/TonyYanTony/blockchain
[INFO] tweaked toml for git repo https://github.com/TonyYanTony/blockchain written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/TonyYanTony/blockchain on toolchain 58b1b3c5342a414c161338871f8004258ccef2a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/TonyYanTony/blockchain 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" "+58b1b3c5342a414c161338871f8004258ccef2a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89474c7cf8d292da9a3e53ae79e443ab9aecf419c419f2382bb86536da1512d1
[INFO] running `Command { std: "docker" "start" "-a" "89474c7cf8d292da9a3e53ae79e443ab9aecf419c419f2382bb86536da1512d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89474c7cf8d292da9a3e53ae79e443ab9aecf419c419f2382bb86536da1512d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89474c7cf8d292da9a3e53ae79e443ab9aecf419c419f2382bb86536da1512d1", kill_on_drop: false }`
[INFO] [stdout] 89474c7cf8d292da9a3e53ae79e443ab9aecf419c419f2382bb86536da1512d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1e66f6e342d746c98445d4c0eaba9821e881520e304b3147bcc2c5c1d1a2294
[INFO] running `Command { std: "docker" "start" "-a" "c1e66f6e342d746c98445d4c0eaba9821e881520e304b3147bcc2c5c1d1a2294", kill_on_drop: false }`
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[INFO] [stderr]    Compiling libp2p-kad v0.32.0
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[INFO] [stderr]    Compiling unsigned-varint v0.7.2
[INFO] [stderr]    Compiling soketto v0.7.1
[INFO] [stderr]    Compiling yamux v0.9.0
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[INFO] [stderr]    Compiling multistream-select v0.10.4
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[INFO] [stderr]    Compiling idna_adapter v1.2.0
[INFO] [stderr]    Compiling idna v1.0.3
[INFO] [stderr]    Compiling url v2.5.4
[INFO] [stderr]    Compiling multiaddr v0.13.0
[INFO] [stderr]    Compiling trust-dns-proto v0.20.4
[INFO] [stderr]    Compiling trust-dns-resolver v0.20.4
[INFO] [stderr]    Compiling libp2p-swarm v0.31.0
[INFO] [stderr]    Compiling libp2p-websocket v0.31.0
[INFO] [stderr]    Compiling libp2p-deflate v0.30.0
[INFO] [stderr]    Compiling libp2p-tcp v0.30.0
[INFO] [stderr]    Compiling libp2p-wasm-ext v0.30.0
[INFO] [stderr]    Compiling libp2p-yamux v0.34.0
[INFO] [stderr]    Compiling libp2p-uds v0.30.0
[INFO] [stderr]    Compiling libp2p-mplex v0.30.0
[INFO] [stderr]    Compiling libp2p-ping v0.31.0
[INFO] [stderr]    Compiling libp2p-request-response v0.13.0
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[INFO] [stderr]    Compiling async-std-resolver v0.20.4
[INFO] [stderr]    Compiling libp2p-dns v0.30.0
[INFO] [stderr]    Compiling libp2p-metrics v0.1.0
[INFO] [stderr]    Compiling libp2p v0.40.0
[INFO] [stderr]    Compiling blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `blockchain`
[INFO] [stdout]    --> src/p2p.rs:246:5
[INFO] [stdout]     |
[INFO] [stdout] 246 |     blockchain: Arc<Mutex<Blockchain>>,
[INFO] [stdout]     |     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_blockchain`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `blockchain`
[INFO] [stdout]   --> src/main.rs:18:31
[INFO] [stdout]    |
[INFO] [stdout] 18 | async fn run_interactive_mode(blockchain: Arc<Mutex<Blockchain>>, tx: mpsc::Sender<BlockchainCommand>) {
[INFO] [stdout]    |                               ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_blockchain`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Transactions` is never constructed
[INFO] [stdout]   --> src/p2p.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | enum BlockchainResponse {
[INFO] [stdout]    |      ------------------ variant in this enum
[INFO] [stdout] 47 |     Blocks(Vec<Block>),
[INFO] [stdout] 48 |     Transactions(Vec<Transaction>),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BlockchainResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `broadcast_block`, `broadcast_transaction`, and `peers` are never used
[INFO] [stdout]    --> src/p2p.rs:185:12
[INFO] [stdout]     |
[INFO] [stdout] 112 | impl P2P {
[INFO] [stdout]     | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 185 |     pub fn broadcast_block(&mut self, block: Block) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 192 |     pub fn broadcast_transaction(&mut self, transaction: Transaction) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 239 |     pub fn peers(&self) -> Vec<PeerId> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Number` is never constructed
[INFO] [stdout]   --> src/algo.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Number {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_str` is never used
[INFO] [stdout]   --> src/algo.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Number {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 17 |     fn from_str(s: &str) -> Option<Self> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_number` is never used
[INFO] [stdout]   --> src/algo.rs:49:4
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn generate_number() -> Number {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compare` is never used
[INFO] [stdout]   --> src/algo.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn compare(a: &Number, b: &Number) -> Ordering {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/algo.rs:94:4
[INFO] [stdout]    |
[INFO] [stdout] 94 | fn check(n: &str) -> Result<(), String> {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/algo.rs:112:4
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 44s
[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 4`
[INFO] running `Command { std: "docker" "inspect" "c1e66f6e342d746c98445d4c0eaba9821e881520e304b3147bcc2c5c1d1a2294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1e66f6e342d746c98445d4c0eaba9821e881520e304b3147bcc2c5c1d1a2294", kill_on_drop: false }`
[INFO] [stdout] c1e66f6e342d746c98445d4c0eaba9821e881520e304b3147bcc2c5c1d1a2294
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17aa1167786702412f96ddf314960ffd232c82c341d446a6c2a9ce9030fcfcd1
[INFO] running `Command { std: "docker" "start" "-a" "17aa1167786702412f96ddf314960ffd232c82c341d446a6c2a9ce9030fcfcd1", kill_on_drop: false }`
[INFO] [stderr]    Compiling blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `blockchain`
[INFO] [stdout]    --> src/p2p.rs:246:5
[INFO] [stdout]     |
[INFO] [stdout] 246 |     blockchain: Arc<Mutex<Blockchain>>,
[INFO] [stdout]     |     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_blockchain`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `blockchain`
[INFO] [stdout]   --> src/main.rs:18:31
[INFO] [stdout]    |
[INFO] [stdout] 18 | async fn run_interactive_mode(blockchain: Arc<Mutex<Blockchain>>, tx: mpsc::Sender<BlockchainCommand>) {
[INFO] [stdout]    |                               ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_blockchain`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Transactions` is never constructed
[INFO] [stdout]   --> src/p2p.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | enum BlockchainResponse {
[INFO] [stdout]    |      ------------------ variant in this enum
[INFO] [stdout] 47 |     Blocks(Vec<Block>),
[INFO] [stdout] 48 |     Transactions(Vec<Transaction>),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BlockchainResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `broadcast_block`, `broadcast_transaction`, and `peers` are never used
[INFO] [stdout]    --> src/p2p.rs:185:12
[INFO] [stdout]     |
[INFO] [stdout] 112 | impl P2P {
[INFO] [stdout]     | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 185 |     pub fn broadcast_block(&mut self, block: Block) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 192 |     pub fn broadcast_transaction(&mut self, transaction: Transaction) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 239 |     pub fn peers(&self) -> Vec<PeerId> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Number` is never constructed
[INFO] [stdout]   --> src/algo.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Number {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_str` is never used
[INFO] [stdout]   --> src/algo.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Number {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 17 |     fn from_str(s: &str) -> Option<Self> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_number` is never used
[INFO] [stdout]   --> src/algo.rs:49:4
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn generate_number() -> Number {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compare` is never used
[INFO] [stdout]   --> src/algo.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn compare(a: &Number, b: &Number) -> Ordering {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/algo.rs:94:4
[INFO] [stdout]    |
[INFO] [stdout] 94 | fn check(n: &str) -> Result<(), String> {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/algo.rs:112:4
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.03s
[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 4`
[INFO] running `Command { std: "docker" "inspect" "17aa1167786702412f96ddf314960ffd232c82c341d446a6c2a9ce9030fcfcd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17aa1167786702412f96ddf314960ffd232c82c341d446a6c2a9ce9030fcfcd1", kill_on_drop: false }`
[INFO] [stdout] 17aa1167786702412f96ddf314960ffd232c82c341d446a6c2a9ce9030fcfcd1
