[INFO] cloning repository https://github.com/iamfaiz123/peerTopeerDatabase
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iamfaiz123/peerTopeerDatabase" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamfaiz123%2FpeerTopeerDatabase", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamfaiz123%2FpeerTopeerDatabase'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0de125a473f7668f3ccaa8b37c2017de15af052c
[INFO] checking iamfaiz123/peerTopeerDatabase against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamfaiz123%2FpeerTopeerDatabase" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iamfaiz123/peerTopeerDatabase on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iamfaiz123/peerTopeerDatabase
[INFO] finished tweaking git repo https://github.com/iamfaiz123/peerTopeerDatabase
[INFO] tweaked toml for git repo https://github.com/iamfaiz123/peerTopeerDatabase written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/iamfaiz123/peerTopeerDatabase 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mac_address v1.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13e60ce6970e50f97b8da7efca4386e6469b78c71485cea1912bfa7831461f7b
[INFO] running `Command { std: "docker" "start" "-a" "13e60ce6970e50f97b8da7efca4386e6469b78c71485cea1912bfa7831461f7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13e60ce6970e50f97b8da7efca4386e6469b78c71485cea1912bfa7831461f7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13e60ce6970e50f97b8da7efca4386e6469b78c71485cea1912bfa7831461f7b", kill_on_drop: false }`
[INFO] [stdout] 13e60ce6970e50f97b8da7efca4386e6469b78c71485cea1912bfa7831461f7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4351a829f5ee3054e016b8b8beb73e8d24baeec5e9775457b0415ea64502a03
[INFO] running `Command { std: "docker" "start" "-a" "a4351a829f5ee3054e016b8b8beb73e8d24baeec5e9775457b0415ea64502a03", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking nix v0.23.2
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking mac_address v1.1.5
[INFO] [stderr]     Checking serde_json v1.0.111
[INFO] [stderr]     Checking p2p_database v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `KeyValueStore` is never constructed
[INFO] [stdout]  --> src/utils/database.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct KeyValueStore {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set`, and `get` are never used
[INFO] [stdout]   --> src/utils/database.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl KeyValueStore {
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] 10 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     async fn set(&self, key: String, value: String) {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     async fn get(&self, key: &str) -> Option<String> {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `last_seen` and `tcp_addr` are never read
[INFO] [stdout]   --> src/utils/node.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct NodeInfo {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 10 |     last_seen: std::time::Instant,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 11 |     // node communicate to other nodes using tcp
[INFO] [stdout] 12 |     tcp_addr: SocketAddr,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `KeyValueStore` is never constructed
[INFO] [stdout]  --> src/utils/database.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct KeyValueStore {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set`, and `get` are never used
[INFO] [stdout]   --> src/utils/database.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl KeyValueStore {
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] 10 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     async fn set(&self, key: String, value: String) {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     async fn get(&self, key: &str) -> Option<String> {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `last_seen` and `tcp_addr` are never read
[INFO] [stdout]   --> src/utils/node.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct NodeInfo {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 10 |     last_seen: std::time::Instant,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 11 |     // node communicate to other nodes using tcp
[INFO] [stdout] 12 |     tcp_addr: SocketAddr,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     loop{}
[INFO] [stdout]    |     ------ any code following this expression is unreachable
[INFO] [stdout] 20 |     Ok(())
[INFO] [stdout]    |     ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nodes`
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let nodes = RwLock::new(HashMap::<String,NodeInfo>::new());
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_nodes`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     loop{}
[INFO] [stdout]    |     ------ any code following this expression is unreachable
[INFO] [stdout] 20 |     Ok(())
[INFO] [stdout]    |     ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nodes`
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let nodes = RwLock::new(HashMap::<String,NodeInfo>::new());
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_nodes`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.92s
[INFO] running `Command { std: "docker" "inspect" "a4351a829f5ee3054e016b8b8beb73e8d24baeec5e9775457b0415ea64502a03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4351a829f5ee3054e016b8b8beb73e8d24baeec5e9775457b0415ea64502a03", kill_on_drop: false }`
[INFO] [stdout] a4351a829f5ee3054e016b8b8beb73e8d24baeec5e9775457b0415ea64502a03