[INFO] cloning repository https://github.com/ammar-abu-yaman/simple-torrent
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ammar-abu-yaman/simple-torrent" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fammar-abu-yaman%2Fsimple-torrent", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d27dbb705ca5d221d326ce1cb556385fe05bd8dc
[INFO] testing ammar-abu-yaman/simple-torrent against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fammar-abu-yaman%2Fsimple-torrent" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ammar-abu-yaman/simple-torrent
[INFO] finished tweaking git repo https://github.com/ammar-abu-yaman/simple-torrent
[INFO] tweaked toml for git repo https://github.com/ammar-abu-yaman/simple-torrent written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ammar-abu-yaman/simple-torrent on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ammar-abu-yaman/simple-torrent 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 8751ac17d7bf1ef3617b44b7b3af668b3afef76f1974df8563573e24e950dfeb
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[INFO] [stdout] 8a91514297cff35cd1b9e32bfa61841ed851b42e80ede9b948e28d40b4fb54a7
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[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> stlib/src/model/torrent.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `udp_connector::*`
[INFO] [stdout]  --> stlib/src/tracker/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use udp_connector::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `request`
[INFO] [stdout]   --> stlib/src/tracker/mod.rs:12:32
[INFO] [stdout]    |
[INFO] [stdout] 12 |     async fn scrape(&mut self, request: &TrackerScrapeRequest) -> Result<TrackerScrapeResponse, String> {
[INFO] [stdout]    |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]   --> stlib/src/model/torrent.rs:57:48
[INFO] [stdout]    |
[INFO] [stdout] 57 |                         let FileEntryBencode { length, path } = file;
[INFO] [stdout]    |                                                ^^^^^^ help: try ignoring the field: `length: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> stlib/src/model/tracker.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 73 | struct LegacyPeerInfo {
[INFO] [stdout]    |        -------------- field in this struct
[INFO] [stdout] 74 |     #[serde(with = "serde_bytes")]
[INFO] [stdout] 75 |     pub id: Sha1Hash,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LegacyPeerInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `choked`, `chocking`, `interested`, and `bitfield` are never read
[INFO] [stdout]   --> stlib/src/peer/peer.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub struct Peer {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     choked: bool,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 11 |     chocking: bool,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 12 |     interested: bool,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 13 |     bitfield: BitVec,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> stlib/src/peer/peer.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Peer {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 17 |     fn new(ip: u32, port: u16) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ip` is never read
[INFO] [stdout]   --> stlib/src/tracker/mod.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct TrackerAnnounceRequest {
[INFO] [stdout]    |            ---------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 25 |     ip: u32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MINUTE_SECONDS` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const MINUTE_SECONDS: u64 = 60;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CONNECT_REQUEST_PROTOCOL_ID` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const CONNECT_REQUEST_PROTOCOL_ID: u64 = 0x41727101980;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CONNECT_REQUEST_MIN_PACKET_SIZE` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const CONNECT_REQUEST_MIN_PACKET_SIZE: usize = 16;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ANNOUNCE_REQUEST_MIN_PACKET_SIZE` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const ANNOUNCE_REQUEST_MIN_PACKET_SIZE: usize = 20;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `IPV4_PORT_SIZE` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const IPV4_PORT_SIZE: usize = 4 + 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UdpTrackerConnector` is never constructed
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct UdpTrackerConnector {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl UdpTrackerConnector {
[INFO] [stdout]    | ------------------------ associated function in this implementation
[INFO] [stdout] 25 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `connect` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:98:14
[INFO] [stdout]    |
[INFO] [stdout] 96 | impl UdpTrackerConnector {
[INFO] [stdout]    | ------------------------ method in this implementation
[INFO] [stdout] 97 |     
[INFO] [stdout] 98 |     async fn connect(&mut self, socket: &mut UdpSocket, timeout_multiplier: &mut u32) -> Result<(), io::Error> {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Action` is never used
[INFO] [stdout]    --> stlib/src/tracker/udp_connector.rs:130:6
[INFO] [stdout]     |
[INFO] [stdout] 130 | enum Action {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `send_recv_timeout` is never used
[INFO] [stdout]    --> stlib/src/tracker/udp_connector.rs:135:4
[INFO] [stdout]     |
[INFO] [stdout] 135 | fn send_recv_timeout(socket: &mut UdpSocket, buf: &mut [u8], message: &[u8], timeout_multiplier: u32) -> Result<usize, io::Error> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_connection_request` is never used
[INFO] [stdout]    --> stlib/src/tracker/udp_connector.rs:145:4
[INFO] [stdout]     |
[INFO] [stdout] 145 | fn make_connection_request(translation_id: u32) -> [u8; 16] {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_announce_request` is never used
[INFO] [stdout]    --> stlib/src/tracker/udp_connector.rs:156:4
[INFO] [stdout]     |
[INFO] [stdout] 156 | fn make_announce_request(connection_id: u64, transaction_id: u32, key: u32, request: &TrackerAnnounceRequest) -> [u8; 98] {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stdout]   --> stlib/src/tracker/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     async fn scrape(&mut self, request: &TrackerScrapeRequest) -> Result<TrackerScrapeResponse, String> {
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stdout]    = note: `#[warn(async_fn_in_trait)]` on by default
[INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stdout]    |
[INFO] [stdout] 12 ~     fn scrape(&mut self, request: &TrackerScrapeRequest) -> impl std::future::Future<Output = Result<TrackerScrapeResponse, String>> + Send {async {
[INFO] [stdout] 13 |         unimplemented!("Not implemented")
[INFO] [stdout] 14 ~     } }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 12s
[INFO] running `Command { std: "docker" "inspect" "8a91514297cff35cd1b9e32bfa61841ed851b42e80ede9b948e28d40b4fb54a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a91514297cff35cd1b9e32bfa61841ed851b42e80ede9b948e28d40b4fb54a7", kill_on_drop: false }`
[INFO] [stdout] 8a91514297cff35cd1b9e32bfa61841ed851b42e80ede9b948e28d40b4fb54a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Copt-level=3" "-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0dfd923ef3c7eaf318a90e835e2272446ebe2a775a4619c316558851688f3635
[INFO] running `Command { std: "docker" "start" "-a" "0dfd923ef3c7eaf318a90e835e2272446ebe2a775a4619c316558851688f3635", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> stlib/src/model/torrent.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `udp_connector::*`
[INFO] [stdout]  --> stlib/src/tracker/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use udp_connector::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `request`
[INFO] [stdout]   --> stlib/src/tracker/mod.rs:12:32
[INFO] [stdout]    |
[INFO] [stdout] 12 |     async fn scrape(&mut self, request: &TrackerScrapeRequest) -> Result<TrackerScrapeResponse, String> {
[INFO] [stdout]    |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]   --> stlib/src/model/torrent.rs:57:48
[INFO] [stdout]    |
[INFO] [stdout] 57 |                         let FileEntryBencode { length, path } = file;
[INFO] [stdout]    |                                                ^^^^^^ help: try ignoring the field: `length: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> stlib/src/model/tracker.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 73 | struct LegacyPeerInfo {
[INFO] [stdout]    |        -------------- field in this struct
[INFO] [stdout] 74 |     #[serde(with = "serde_bytes")]
[INFO] [stdout] 75 |     pub id: Sha1Hash,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LegacyPeerInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `choked`, `chocking`, `interested`, and `bitfield` are never read
[INFO] [stdout]   --> stlib/src/peer/peer.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub struct Peer {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     choked: bool,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 11 |     chocking: bool,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 12 |     interested: bool,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 13 |     bitfield: BitVec,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> stlib/src/peer/peer.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Peer {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 17 |     fn new(ip: u32, port: u16) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ip` is never read
[INFO] [stdout]   --> stlib/src/tracker/mod.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct TrackerAnnounceRequest {
[INFO] [stdout]    |            ---------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 25 |     ip: u32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MINUTE_SECONDS` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const MINUTE_SECONDS: u64 = 60;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CONNECT_REQUEST_PROTOCOL_ID` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const CONNECT_REQUEST_PROTOCOL_ID: u64 = 0x41727101980;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CONNECT_REQUEST_MIN_PACKET_SIZE` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const CONNECT_REQUEST_MIN_PACKET_SIZE: usize = 16;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ANNOUNCE_REQUEST_MIN_PACKET_SIZE` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const ANNOUNCE_REQUEST_MIN_PACKET_SIZE: usize = 20;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `IPV4_PORT_SIZE` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const IPV4_PORT_SIZE: usize = 4 + 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UdpTrackerConnector` is never constructed
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct UdpTrackerConnector {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl UdpTrackerConnector {
[INFO] [stdout]    | ------------------------ associated function in this implementation
[INFO] [stdout] 25 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `connect` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:98:14
[INFO] [stdout]    |
[INFO] [stdout] 96 | impl UdpTrackerConnector {
[INFO] [stdout]    | ------------------------ method in this implementation
[INFO] [stdout] 97 |     
[INFO] [stdout] 98 |     async fn connect(&mut self, socket: &mut UdpSocket, timeout_multiplier: &mut u32) -> Result<(), io::Error> {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Action` is never used
[INFO] [stdout]    --> stlib/src/tracker/udp_connector.rs:130:6
[INFO] [stdout]     |
[INFO] [stdout] 130 | enum Action {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `send_recv_timeout` is never used
[INFO] [stdout]    --> stlib/src/tracker/udp_connector.rs:135:4
[INFO] [stdout]     |
[INFO] [stdout] 135 | fn send_recv_timeout(socket: &mut UdpSocket, buf: &mut [u8], message: &[u8], timeout_multiplier: u32) -> Result<usize, io::Error> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_connection_request` is never used
[INFO] [stdout]    --> stlib/src/tracker/udp_connector.rs:145:4
[INFO] [stdout]     |
[INFO] [stdout] 145 | fn make_connection_request(translation_id: u32) -> [u8; 16] {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_announce_request` is never used
[INFO] [stdout]    --> stlib/src/tracker/udp_connector.rs:156:4
[INFO] [stdout]     |
[INFO] [stdout] 156 | fn make_announce_request(connection_id: u64, transaction_id: u32, key: u32, request: &TrackerAnnounceRequest) -> [u8; 98] {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stdout]   --> stlib/src/tracker/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     async fn scrape(&mut self, request: &TrackerScrapeRequest) -> Result<TrackerScrapeResponse, String> {
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stdout]    = note: `#[warn(async_fn_in_trait)]` on by default
[INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stdout]    |
[INFO] [stdout] 12 ~     fn scrape(&mut self, request: &TrackerScrapeRequest) -> impl std::future::Future<Output = Result<TrackerScrapeResponse, String>> + Send {async {
[INFO] [stdout] 13 |         unimplemented!("Not implemented")
[INFO] [stdout] 14 ~     } }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling engine v0.1.0 (/opt/rustwide/workdir/stlib)
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> stlib/src/model/torrent.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `udp_connector::*`
[INFO] [stdout]  --> stlib/src/tracker/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use udp_connector::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `request`
[INFO] [stdout]   --> stlib/src/tracker/mod.rs:12:32
[INFO] [stdout]    |
[INFO] [stdout] 12 |     async fn scrape(&mut self, request: &TrackerScrapeRequest) -> Result<TrackerScrapeResponse, String> {
[INFO] [stdout]    |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]   --> stlib/src/model/torrent.rs:57:48
[INFO] [stdout]    |
[INFO] [stdout] 57 |                         let FileEntryBencode { length, path } = file;
[INFO] [stdout]    |                                                ^^^^^^ help: try ignoring the field: `length: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> stlib/src/model/tracker.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 73 | struct LegacyPeerInfo {
[INFO] [stdout]    |        -------------- field in this struct
[INFO] [stdout] 74 |     #[serde(with = "serde_bytes")]
[INFO] [stdout] 75 |     pub id: Sha1Hash,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LegacyPeerInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `choked`, `chocking`, `interested`, and `bitfield` are never read
[INFO] [stdout]   --> stlib/src/peer/peer.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub struct Peer {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     choked: bool,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 11 |     chocking: bool,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 12 |     interested: bool,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 13 |     bitfield: BitVec,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> stlib/src/peer/peer.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Peer {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 17 |     fn new(ip: u32, port: u16) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ip` is never read
[INFO] [stdout]   --> stlib/src/tracker/mod.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct TrackerAnnounceRequest {
[INFO] [stdout]    |            ---------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 25 |     ip: u32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MINUTE_SECONDS` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const MINUTE_SECONDS: u64 = 60;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CONNECT_REQUEST_PROTOCOL_ID` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const CONNECT_REQUEST_PROTOCOL_ID: u64 = 0x41727101980;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CONNECT_REQUEST_MIN_PACKET_SIZE` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const CONNECT_REQUEST_MIN_PACKET_SIZE: usize = 16;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ANNOUNCE_REQUEST_MIN_PACKET_SIZE` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const ANNOUNCE_REQUEST_MIN_PACKET_SIZE: usize = 20;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `IPV4_PORT_SIZE` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const IPV4_PORT_SIZE: usize = 4 + 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UdpTrackerConnector` is never constructed
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct UdpTrackerConnector {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl UdpTrackerConnector {
[INFO] [stdout]    | ------------------------ associated function in this implementation
[INFO] [stdout] 25 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `connect` is never used
[INFO] [stdout]   --> stlib/src/tracker/udp_connector.rs:98:14
[INFO] [stdout]    |
[INFO] [stdout] 96 | impl UdpTrackerConnector {
[INFO] [stdout]    | ------------------------ method in this implementation
[INFO] [stdout] 97 |     
[INFO] [stdout] 98 |     async fn connect(&mut self, socket: &mut UdpSocket, timeout_multiplier: &mut u32) -> Result<(), io::Error> {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Action` is never used
[INFO] [stdout]    --> stlib/src/tracker/udp_connector.rs:130:6
[INFO] [stdout]     |
[INFO] [stdout] 130 | enum Action {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `send_recv_timeout` is never used
[INFO] [stdout]    --> stlib/src/tracker/udp_connector.rs:135:4
[INFO] [stdout]     |
[INFO] [stdout] 135 | fn send_recv_timeout(socket: &mut UdpSocket, buf: &mut [u8], message: &[u8], timeout_multiplier: u32) -> Result<usize, io::Error> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_connection_request` is never used
[INFO] [stdout]    --> stlib/src/tracker/udp_connector.rs:145:4
[INFO] [stdout]     |
[INFO] [stdout] 145 | fn make_connection_request(translation_id: u32) -> [u8; 16] {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_announce_request` is never used
[INFO] [stdout]    --> stlib/src/tracker/udp_connector.rs:156:4
[INFO] [stdout]     |
[INFO] [stdout] 156 | fn make_announce_request(connection_id: u64, transaction_id: u32, key: u32, request: &TrackerAnnounceRequest) -> [u8; 98] {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stdout]   --> stlib/src/tracker/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     async fn scrape(&mut self, request: &TrackerScrapeRequest) -> Result<TrackerScrapeResponse, String> {
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stdout]    = note: `#[warn(async_fn_in_trait)]` on by default
[INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stdout]    |
[INFO] [stdout] 12 ~     fn scrape(&mut self, request: &TrackerScrapeRequest) -> impl std::future::Future<Output = Result<TrackerScrapeResponse, String>> + Send {async {
[INFO] [stdout] 13 |         unimplemented!("Not implemented")
[INFO] [stdout] 14 ~     } }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.57s
[INFO] running `Command { std: "docker" "inspect" "0dfd923ef3c7eaf318a90e835e2272446ebe2a775a4619c316558851688f3635", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dfd923ef3c7eaf318a90e835e2272446ebe2a775a4619c316558851688f3635", kill_on_drop: false }`
[INFO] [stdout] 0dfd923ef3c7eaf318a90e835e2272446ebe2a775a4619c316558851688f3635
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Copt-level=3" "-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 42c797c5a5a10619d73b1388141a11f29ae8484052bca168a40d2d95b75c04fd
[INFO] running `Command { std: "docker" "start" "-a" "42c797c5a5a10619d73b1388141a11f29ae8484052bca168a40d2d95b75c04fd", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> stlib/src/model/torrent.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `udp_connector::*`
[INFO] [stderr]  --> stlib/src/tracker/mod.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub use udp_connector::*;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `request`
[INFO] [stderr]   --> stlib/src/tracker/mod.rs:12:32
[INFO] [stderr]    |
[INFO] [stderr] 12 |     async fn scrape(&mut self, request: &TrackerScrapeRequest) -> Result<TrackerScrapeResponse, String> {
[INFO] [stderr]    |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `length`
[INFO] [stderr]   --> stlib/src/model/torrent.rs:57:48
[INFO] [stderr]    |
[INFO] [stderr] 57 |                         let FileEntryBencode { length, path } = file;
[INFO] [stderr]    |                                                ^^^^^^ help: try ignoring the field: `length: _`
[INFO] [stderr] 
[INFO] [stderr] warning: field `id` is never read
[INFO] [stderr]   --> stlib/src/model/tracker.rs:75:9
[INFO] [stderr]    |
[INFO] [stderr] 73 | struct LegacyPeerInfo {
[INFO] [stderr]    |        -------------- field in this struct
[INFO] [stderr] 74 |     #[serde(with = "serde_bytes")]
[INFO] [stderr] 75 |     pub id: Sha1Hash,
[INFO] [stderr]    |         ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `LegacyPeerInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `choked`, `chocking`, `interested`, and `bitfield` are never read
[INFO] [stderr]   --> stlib/src/peer/peer.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 6  | pub struct Peer {
[INFO] [stderr]    |            ---- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 10 |     choked: bool,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 11 |     chocking: bool,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 12 |     interested: bool,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 13 |     bitfield: BitVec,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> stlib/src/peer/peer.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 16 | impl Peer {
[INFO] [stderr]    | --------- associated function in this implementation
[INFO] [stderr] 17 |     fn new(ip: u32, port: u16) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `ip` is never read
[INFO] [stderr]   --> stlib/src/tracker/mod.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct TrackerAnnounceRequest {
[INFO] [stderr]    |            ---------------------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 25 |     ip: u32,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `MINUTE_SECONDS` is never used
[INFO] [stderr]   --> stlib/src/tracker/udp_connector.rs:11:7
[INFO] [stderr]    |
[INFO] [stderr] 11 | const MINUTE_SECONDS: u64 = 60;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `CONNECT_REQUEST_PROTOCOL_ID` is never used
[INFO] [stderr]   --> stlib/src/tracker/udp_connector.rs:12:7
[INFO] [stderr]    |
[INFO] [stderr] 12 | const CONNECT_REQUEST_PROTOCOL_ID: u64 = 0x41727101980;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `CONNECT_REQUEST_MIN_PACKET_SIZE` is never used
[INFO] [stderr]   --> stlib/src/tracker/udp_connector.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 | const CONNECT_REQUEST_MIN_PACKET_SIZE: usize = 16;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `ANNOUNCE_REQUEST_MIN_PACKET_SIZE` is never used
[INFO] [stderr]   --> stlib/src/tracker/udp_connector.rs:14:7
[INFO] [stderr]    |
[INFO] [stderr] 14 | const ANNOUNCE_REQUEST_MIN_PACKET_SIZE: usize = 20;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `IPV4_PORT_SIZE` is never used
[INFO] [stderr]   --> stlib/src/tracker/udp_connector.rs:15:7
[INFO] [stderr]    |
[INFO] [stderr] 15 | const IPV4_PORT_SIZE: usize = 4 + 2;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `UdpTrackerConnector` is never constructed
[INFO] [stderr]   --> stlib/src/tracker/udp_connector.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | struct UdpTrackerConnector {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> stlib/src/tracker/udp_connector.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 24 | impl UdpTrackerConnector {
[INFO] [stderr]    | ------------------------ associated function in this implementation
[INFO] [stderr] 25 |     fn new() -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `connect` is never used
[INFO] [stderr]   --> stlib/src/tracker/udp_connector.rs:98:14
[INFO] [stderr]    |
[INFO] [stderr] 96 | impl UdpTrackerConnector {
[INFO] [stderr]    | ------------------------ method in this implementation
[INFO] [stderr] 97 |     
[INFO] [stderr] 98 |     async fn connect(&mut self, socket: &mut UdpSocket, timeout_multiplier: &mut u32) -> Result<(), io::Error> {
[INFO] [stderr]    |              ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Action` is never used
[INFO] [stderr]    --> stlib/src/tracker/udp_connector.rs:130:6
[INFO] [stderr]     |
[INFO] [stderr] 130 | enum Action {
[INFO] [stderr]     |      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `send_recv_timeout` is never used
[INFO] [stderr]    --> stlib/src/tracker/udp_connector.rs:135:4
[INFO] [stderr]     |
[INFO] [stderr] 135 | fn send_recv_timeout(socket: &mut UdpSocket, buf: &mut [u8], message: &[u8], timeout_multiplier: u32) -> Result<usize, io::Error> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `make_connection_request` is never used
[INFO] [stderr]    --> stlib/src/tracker/udp_connector.rs:145:4
[INFO] [stderr]     |
[INFO] [stderr] 145 | fn make_connection_request(translation_id: u32) -> [u8; 16] {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `make_announce_request` is never used
[INFO] [stderr]    --> stlib/src/tracker/udp_connector.rs:156:4
[INFO] [stderr]     |
[INFO] [stderr] 156 | fn make_announce_request(connection_id: u64, transaction_id: u32, key: u32, request: &TrackerAnnounceRequest) -> [u8; 98] {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stderr]   --> stlib/src/tracker/mod.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     async fn scrape(&mut self, request: &TrackerScrapeRequest) -> Result<TrackerScrapeResponse, String> {
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stderr]    = note: `#[warn(async_fn_in_trait)]` on by default
[INFO] [stderr] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stderr]    |
[INFO] [stderr] 12 ~     fn scrape(&mut self, request: &TrackerScrapeRequest) -> impl std::future::Future<Output = Result<TrackerScrapeResponse, String>> + Send {async {
[INFO] [stderr] 13 |         unimplemented!("Not implemented")
[INFO] [stderr] 14 ~     } }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `engine` (lib) generated 21 warnings (run `cargo fix --lib -p engine` to apply 2 suggestions)
[INFO] [stderr] warning: `engine` (lib test) generated 21 warnings (21 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/engine-a562e31e7af7efd3)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test util::common::tests::test_hashing ... ok
[INFO] [stdout] test model::torrent::tests::test_parse_single_file_torrent ... ok
[INFO] [stdout] test model::torrent::tests::test_parse_multi_torrent ... ok
[INFO] [stdout] test util::common::tests::test_resolve_ipv4_addr_given_ip_addr ... ok
[INFO] [stdout] test util::common::tests::test_resolve_ipv4_addr_given_malformed_addr ... ok
[INFO] [stdout] test util::common::tests::test_resolve_ipv4_addr_given_domain_name ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- util::common::tests::test_resolve_ipv4_addr_given_domain_name stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'util::common::tests::test_resolve_ipv4_addr_given_domain_name' panicked at stlib/src/util/common.rs:44:51:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Custom { kind: Uncategorized, error: "failed to lookup address information: Temporary failure in name resolution" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55a8d5eedf52 - std::backtrace_rs::backtrace::libunwind::trace::hd39b1f53d3cf9745
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x55a8d5eedf52 - std::backtrace_rs::backtrace::trace_unsynchronized::he91d9a75d4e3972b
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x55a8d5eedf52 - std::sys::backtrace::_print_fmt::hca46938f8c6e22cf
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x55a8d5eedf52 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha499add612cccf8e
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x55a8d5f156a3 - core::fmt::rt::Argument::fmt::hd21145b75a833b7a
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x55a8d5f156a3 - core::fmt::write::hb10c956f5235c8a4
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/fmt/mod.rs:1465:25
[INFO] [stdout]    6:     0x55a8d5eeac03 - std::io::default_write_fmt::hdb7615052be2ba4d
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x55a8d5eeac03 - std::io::Write::write_fmt::he1bcd251ec6e4153
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x55a8d5eedda2 - std::sys::backtrace::BacktraceLock::print::hb47c770ef659fd10
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x55a8d5eef4bc - std::panicking::default_hook::{{closure}}::hdda8afb9d457a22c
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x55a8d5eef312 - std::panicking::default_hook::h7c46b44874fe5c9a
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x55a8d5eb4a24 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h178a5fcedee41e2f
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x55a8d5eb4a24 - test::test_main_with_exit_callback::{{closure}}::h951a41e0149d6d5d
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x55a8d5eefe9b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h13602080f5b63276
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x55a8d5eefe9b - std::panicking::rust_panic_with_hook::ha6cb99ed099eb1c5
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x55a8d5eefc6a - std::panicking::begin_panic_handler::{{closure}}::he11808bc797ee921
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:706:13
[INFO] [stdout]   16:     0x55a8d5eee449 - std::sys::backtrace::__rust_end_short_backtrace::h9418807cb7346258
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   17:     0x55a8d5eef8fd - __rustc[18fb429eef004894]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x55a8d5f13e20 - core::panicking::panic_fmt::hd890aeb12c3a3fc3
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x55a8d5f14196 - core::result::unwrap_failed::h31c9775ec1a50121
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/result.rs:1761:5
[INFO] [stdout]   20:     0x55a8d5e74800 - core::result::Result<T,E>::unwrap::h455d6bbb28a5ac99
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/result.rs:1167:23
[INFO] [stdout]   21:     0x55a8d5e74800 - engine::util::common::tests::test_resolve_ipv4_addr_given_domain_name::h14452a58b2671c0d
[INFO] [stdout]                                at /opt/rustwide/workdir/stlib/src/util/common.rs:44:51
[INFO] [stdout]   22:     0x55a8d5e72329 - engine::util::common::tests::test_resolve_ipv4_addr_given_domain_name::{{closure}}::h6b2651a03a076a31
[INFO] [stdout]                                at /opt/rustwide/workdir/stlib/src/util/common.rs:42:50
[INFO] [stdout]   23:     0x55a8d5e72329 - core::ops::function::FnOnce::call_once::h7ae5f03176751d9b
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x55a8d5eba1ab - core::ops::function::FnOnce::call_once::h2869fb5b0a2b0bdc
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x55a8d5eba1ab - test::__rust_begin_short_backtrace::h7dd7142bd62fa711
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:648:18
[INFO] [stdout]   26:     0x55a8d5eb939e - test::run_test_in_process::{{closure}}::h43a753f038d36b3f
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:671:74
[INFO] [stdout]   27:     0x55a8d5eb939e - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h0ca95dd3e12d1e16
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x55a8d5eb939e - std::panicking::catch_unwind::do_call::he308587d70ac34ba
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:589:40
[INFO] [stdout]   29:     0x55a8d5eb939e - std::panicking::catch_unwind::h30dcba31973e8fb0
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:552:19
[INFO] [stdout]   30:     0x55a8d5eb939e - std::panic::catch_unwind::hfb68364e5621fbee
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x55a8d5eb939e - test::run_test_in_process::hcdcc2977903b998a
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:671:27
[INFO] [stdout]   32:     0x55a8d5eb939e - test::run_test::{{closure}}::h544a6550958c5d14
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:592:43
[INFO] [stdout]   33:     0x55a8d5e7cf14 - test::run_test::{{closure}}::hb172e48ebe2b92c7
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:622:41
[INFO] [stdout]   34:     0x55a8d5e7cf14 - std::sys::backtrace::__rust_begin_short_backtrace::h7e79d8706638bea0
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   35:     0x55a8d5e808ea - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hc4a275f1e71b8ab0
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x55a8d5e808ea - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h01ed0d242df78cfd
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x55a8d5e808ea - std::panicking::catch_unwind::do_call::h052f373fb905fee0
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:589:40
[INFO] [stdout]   38:     0x55a8d5e808ea - std::panicking::catch_unwind::hb425d20c8ffb09c8
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:552:19
[INFO] [stdout]   39:     0x55a8d5e808ea - std::panic::catch_unwind::ha0d5dfbf18fdeda5
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x55a8d5e808ea - std::thread::Builder::spawn_unchecked_::{{closure}}::hbe79182bd37949c7
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x55a8d5e808ea - core::ops::function::FnOnce::call_once{{vtable.shim}}::hc096c4a06972fde5
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x55a8d5ef2df7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h47377e27fb938a26
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   43:     0x55a8d5ef2df7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h72f1fe5d095abf57
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   44:     0x55a8d5ef2df7 - std::sys::pal::unix::thread::Thread::new::thread_start::h0a4d8e1b9c0d38cf
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/pal/unix/thread.rs:97:17
[INFO] [stdout]   45:     0x73f4646abaa4 - <unknown>
[INFO] [stdout]   46:     0x73f464738a34 - clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     util::common::tests::test_resolve_ipv4_addr_given_domain_name
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 5 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "42c797c5a5a10619d73b1388141a11f29ae8484052bca168a40d2d95b75c04fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42c797c5a5a10619d73b1388141a11f29ae8484052bca168a40d2d95b75c04fd", kill_on_drop: false }`
[INFO] [stdout] 42c797c5a5a10619d73b1388141a11f29ae8484052bca168a40d2d95b75c04fd
