[INFO] fetching crate crack 0.1.0...
[INFO] testing crack-0.1.0 against 1.76.0 for beta-1.77-1
[INFO] extracting crate crack 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate crack 0.1.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate crack 0.1.0
[INFO] finished tweaking crates.io crate crack 0.1.0
[INFO] tweaked toml for crates.io crate crack 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thread-id v2.0.0
[INFO] [stderr]   Downloaded env_logger v0.3.5
[INFO] [stderr]   Downloaded regex-syntax v0.3.9
[INFO] [stderr]   Downloaded memchr v0.1.11
[INFO] [stderr]   Downloaded serde_codegen_internals v0.14.2
[INFO] [stderr]   Downloaded quickcheck v0.2.27
[INFO] [stderr]   Downloaded utf8-ranges v0.1.3
[INFO] [stderr]   Downloaded serde v0.9.15
[INFO] [stderr]   Downloaded aho-corasick v0.5.3
[INFO] [stderr]   Downloaded regex v0.1.80
[INFO] [stderr]   Downloaded serde_json v0.9.10
[INFO] [stderr]   Downloaded crossbeam v0.2.12
[INFO] [stderr]   Downloaded serde_derive v0.9.15
[INFO] [stderr]   Downloaded error-chain v0.9.0
[INFO] [stderr]   Downloaded itoa v0.3.4
[INFO] [stderr]   Downloaded uuid v0.4.0
[INFO] [stderr]   Downloaded crdts v1.3.0
[INFO] [stderr]   Downloaded bincode v0.9.2
[INFO] [stderr]   Downloaded thread_local v0.2.7
[INFO] [stderr]   Downloaded bincode v0.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e7a1e079715dd940a6d7fa30a00e6f5fb833190cd7ee48319e19f9c55272d9f
[INFO] running `Command { std: "docker" "start" "-a" "5e7a1e079715dd940a6d7fa30a00e6f5fb833190cd7ee48319e19f9c55272d9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e7a1e079715dd940a6d7fa30a00e6f5fb833190cd7ee48319e19f9c55272d9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e7a1e079715dd940a6d7fa30a00e6f5fb833190cd7ee48319e19f9c55272d9f", kill_on_drop: false }`
[INFO] [stdout] 5e7a1e079715dd940a6d7fa30a00e6f5fb833190cd7ee48319e19f9c55272d9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13236a797ce206a4f6ae3f8c3650721bbe6fc6c04d957d16bd36feea9f02d1e1
[INFO] running `Command { std: "docker" "start" "-a" "13236a797ce206a4f6ae3f8c3650721bbe6fc6c04d957d16bd36feea9f02d1e1", kill_on_drop: false }`
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[INFO] [stderr]    Compiling ucd-util v0.1.10
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[INFO] [stderr]    Compiling net2 v0.2.39
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[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling bincode v0.6.1
[INFO] [stderr]    Compiling tokio-core v0.1.18
[INFO] [stderr]    Compiling serde_json v0.9.10
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[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling crdts v1.3.0
[INFO] [stderr]    Compiling crack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/transport.rs:160:17
[INFO] [stdout]     |
[INFO] [stdout] 160 | #[derive(Debug, RustcEncodable, RustcDecodable)]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/transport.rs:160:33
[INFO] [stdout]     |
[INFO] [stdout] 160 | #[derive(Debug, RustcEncodable, RustcDecodable)]
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert`
[INFO] [stdout]  --> src/transport.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::convert;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/transport.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/transport.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter`
[INFO] [stdout]  --> src/transport.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::iter;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/transport.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str`
[INFO] [stdout]  --> src/transport.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::str;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::PhantomData`
[INFO] [stdout]  --> src/transport.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::marker::PhantomData;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Handle`
[INFO] [stdout]   --> src/transport.rs:17:33
[INFO] [stdout]    |
[INFO] [stdout] 17 | use tokio_core::reactor::{Core, Handle};
[INFO] [stdout]    |                                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DecodingResult`
[INFO] [stdout]   --> src/transport.rs:20:48
[INFO] [stdout]    |
[INFO] [stdout] 20 | use bincode::rustc_serialize::{encode, decode, DecodingResult};
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json`
[INFO] [stdout]   --> src/transport.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufMut`, `BytesMut`
[INFO] [stdout]   --> src/transport.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 | use bytes::{BufMut, BytesMut};
[INFO] [stdout]    |             ^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Decoder`, `Encoder`
[INFO] [stdout]   --> src/transport.rs:23:23
[INFO] [stdout]    |
[INFO] [stdout] 23 | use tokio_io::codec::{Encoder, Decoder, length_delimited};
[INFO] [stdout]    |                       ^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio_io::AsyncRead`
[INFO] [stdout]   --> src/transport.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use tokio_io::AsyncRead;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `future`, `sink`
[INFO] [stdout]   --> src/transport.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 | use futures::{future, sink, Sink, Stream, Future, IntoFuture};
[INFO] [stdout]    |               ^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SplitSink`, `SplitStream`, `self`
[INFO] [stdout]   --> src/transport.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout] 26 | use futures::stream::{self, SplitSink, SplitStream};
[INFO] [stdout]    |                       ^^^^  ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `uuid::Uuid`
[INFO] [stdout]   --> src/transport.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use uuid::Uuid;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `from_binary`, `to_binary`
[INFO] [stdout]   --> src/transport.rs:29:6
[INFO] [stdout]    |
[INFO] [stdout] 29 | use {to_binary, from_binary};
[INFO] [stdout]    |      ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `kernel::Peer`
[INFO] [stdout]   --> src/transport.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | use kernel::Peer;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/kernel.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn ping(&self, Peer) -> Result<(), ()>;
[INFO] [stdout]    |                    ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Peer`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/kernel.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn purge(&self, Peer);
[INFO] [stdout]    |                     ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Peer`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `crc16_arr`, `crc16`
[INFO] [stdout]   --> src/lib.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 | use crc16::{crc16_arr, crc16};
[INFO] [stdout]    |             ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `tokio_io::codec::length_delimited`: Moved to tokio-codec
[INFO] [stdout]   --> src/transport.rs:23:41
[INFO] [stdout]    |
[INFO] [stdout] 23 | use tokio_io::codec::{Encoder, Decoder, length_delimited};
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tokio_io::length_delimited::FramedRead`: Moved to tokio-codec
[INFO] [stdout]    --> src/transport.rs:108:46
[INFO] [stdout]     |
[INFO] [stdout] 108 |             let deframed = length_delimited::FramedRead::new(socket);
[INFO] [stdout]     |                                              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tokio_io::length_delimited::FramedWrite`: Moved to tokio-codec
[INFO] [stdout]    --> src/transport.rs:143:44
[INFO] [stdout]     |
[INFO] [stdout] 143 |             let framed = length_delimited::FramedWrite::new(socket);
[INFO] [stdout]     |                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/model.rs:62:48
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub struct Process<A>(Vec<(Option<String>, Box<Fn(A) -> A>)>);
[INFO] [stdout]    |                                                ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub struct Process<A>(Vec<(Option<String>, Box<dyn Fn(A) -> A>)>);
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/model.rs:72:29
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub invariants: Vec<Box<Fn(&A) -> bool>>,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub invariants: Vec<Box<dyn Fn(&A) -> bool>>,
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/model.rs:73:49
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub processes: Vec<Vec<(Option<String>, Box<Fn(A) -> A>)>>,
[INFO] [stdout]    |                                                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub processes: Vec<Vec<(Option<String>, Box<dyn Fn(A) -> A>)>>,
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/model.rs:65:41
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn new<'a>(steps: Vec<(&'a str, Box<Fn(A) -> A>)>) -> Process<A> {
[INFO] [stdout]    |                                         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn new<'a>(steps: Vec<(&'a str, Box<dyn Fn(A) -> A>)>) -> Process<A> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::sync::mpsc::UnboundedSender::<T>::send`: renamed to `unbounded_send`
[INFO] [stdout]   --> src/transport.rs:61:24
[INFO] [stdout]    |
[INFO] [stdout] 61 |                     tx.send(msg).unwrap();
[INFO] [stdout]    |                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peer`
[INFO] [stdout]   --> src/kernel.rs:38:20
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn ping(&self, peer: Peer) -> Result<(), ()> {
[INFO] [stdout]    |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_peer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peer`
[INFO] [stdout]   --> src/kernel.rs:42:21
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn purge(&self, peer: Peer) {}
[INFO] [stdout]    |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_peer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `note`
[INFO] [stdout]   --> src/model.rs:84:26
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 let (ref note, ref f) = self.processes[choice][*index];
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_note`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `connections` is never read
[INFO] [stdout]   --> src/transport.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct TCPTransport<Rx, Tx> {
[INFO] [stdout]    |        ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 41 |     connections: Arc<RwLock<HashMap<SocketAddr, mpsc::UnboundedSender<Tx>>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/transport.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | / impl<Rx, Tx> TCPTransport<Rx, Tx>
[INFO] [stdout] 45 | |     where Rx: Decodable + Send + 'static,
[INFO] [stdout] 46 | |           Tx: Encodable + Send + 'static
[INFO] [stdout]    | |________________________________________- associated function in this implementation
[INFO] [stdout] 47 |   {
[INFO] [stdout] 48 |       pub fn new(addr: SocketAddr) -> TCPTransport<Rx, Tx> {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `recv` is never used
[INFO] [stdout]   --> src/transport.rs:91:4
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn recv<T>(addr: SocketAddr) -> Arc<MsQueue<(SocketAddr, T)>>
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `send` is never used
[INFO] [stdout]    --> src/transport.rs:130:4
[INFO] [stdout]     |
[INFO] [stdout] 130 | fn send<T>(addr: SocketAddr) -> mpsc::UnboundedSender<T>
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Connected` and `Disconnected` are never constructed
[INFO] [stdout]  --> src/kernel.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum PeerState {
[INFO] [stdout]   |          --------- variants in this enum
[INFO] [stdout] 2 |     Connected,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 3 |     Disconnected,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `state` and `addr` are never read
[INFO] [stdout]  --> src/kernel.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Peer {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 7 |     state: PeerState,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 8 |     addr: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `peers` is never read
[INFO] [stdout]   --> src/kernel.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct K {
[INFO] [stdout]    |            - field in this struct
[INFO] [stdout] 18 |     peers: Vec<Peer>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cron` is never used
[INFO] [stdout]   --> src/kernel.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl K {
[INFO] [stdout]    | ------ method in this implementation
[INFO] [stdout] 28 |     fn cron(&self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/model.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Runs {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 14 |     fn new<I>(inner: &Vec<Vec<I>>) -> Runs {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Process` is never constructed
[INFO] [stdout]   --> src/model.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub struct Process<A>(Vec<(Option<String>, Box<Fn(A) -> A>)>);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/model.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | impl<A> Process<A> {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 65 |     fn new<'a>(steps: Vec<(&'a str, Box<Fn(A) -> A>)>) -> Process<A> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `System` is never constructed
[INFO] [stdout]   --> src/model.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub struct System<A> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `test` is never used
[INFO] [stdout]   --> src/model.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl<A: Clone> System<A> {
[INFO] [stdout]    | ------------------------ method in this implementation
[INFO] [stdout] 77 |     fn test(&self) -> Result<(), String> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fact` is never used
[INFO] [stdout]    --> src/model.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn fact(n: usize) -> usize {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/transport.rs:109:50
[INFO] [stdout]     |
[INFO] [stdout] 109 |             let rx = deframed.map_err(|e| panic!(e))
[INFO] [stdout]     |                                                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 109 |             let rx = deframed.map_err(|e| panic!("{}", e))
[INFO] [stdout]     |                                                  +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 109 |             let rx = deframed.map_err(|e| std::panic::panic_any(e))
[INFO] [stdout]     |                                           ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/transport.rs:110:65
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 .and_then(|buf| decode(&buf).map_err(|e| panic!(e)));
[INFO] [stdout]     |                                                                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 .and_then(|buf| decode(&buf).map_err(|e| panic!("{}", e)));
[INFO] [stdout]     |                                                                 +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 .and_then(|buf| decode(&buf).map_err(|e| std::panic::panic_any(e)));
[INFO] [stdout]     |                                                          ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/transport.rs:145:37
[INFO] [stdout]     |
[INFO] [stdout] 145 |                 .map_err(|e| panic!(e))
[INFO] [stdout]     |                                     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{:?}" format string to use the `Debug` implementation of `()`
[INFO] [stdout]     |
[INFO] [stdout] 145 |                 .map_err(|e| panic!("{:?}", e))
[INFO] [stdout]     |                                     +++++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 145 |                 .map_err(|e| std::panic::panic_any(e))
[INFO] [stdout]     |                              ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `futures::stream::MapErr` in tuple element 0 that must be used
[INFO] [stdout]    --> src/transport.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |         core.run(client).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: streams do nothing unless polled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 53 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.64s
[INFO] running `Command { std: "docker" "inspect" "13236a797ce206a4f6ae3f8c3650721bbe6fc6c04d957d16bd36feea9f02d1e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13236a797ce206a4f6ae3f8c3650721bbe6fc6c04d957d16bd36feea9f02d1e1", kill_on_drop: false }`
[INFO] [stdout] 13236a797ce206a4f6ae3f8c3650721bbe6fc6c04d957d16bd36feea9f02d1e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.76.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d62bd8cc7f2c430ff5a2fbe8f79f97338c654347c869264f096775df4b2b219
[INFO] running `Command { std: "docker" "start" "-a" "5d62bd8cc7f2c430ff5a2fbe8f79f97338c654347c869264f096775df4b2b219", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/transport.rs:160:17
[INFO] [stdout]     |
[INFO] [stdout] 160 | #[derive(Debug, RustcEncodable, RustcDecodable)]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/transport.rs:160:33
[INFO] [stdout]     |
[INFO] [stdout] 160 | #[derive(Debug, RustcEncodable, RustcDecodable)]
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert`
[INFO] [stdout]  --> src/transport.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::convert;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/transport.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/transport.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter`
[INFO] [stdout]  --> src/transport.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::iter;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/transport.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str`
[INFO] [stdout]  --> src/transport.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::str;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::PhantomData`
[INFO] [stdout]  --> src/transport.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::marker::PhantomData;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Handle`
[INFO] [stdout]   --> src/transport.rs:17:33
[INFO] [stdout]    |
[INFO] [stdout] 17 | use tokio_core::reactor::{Core, Handle};
[INFO] [stdout]    |                                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DecodingResult`
[INFO] [stdout]   --> src/transport.rs:20:48
[INFO] [stdout]    |
[INFO] [stdout] 20 | use bincode::rustc_serialize::{encode, decode, DecodingResult};
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json`
[INFO] [stdout]   --> src/transport.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufMut`, `BytesMut`
[INFO] [stdout]   --> src/transport.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 | use bytes::{BufMut, BytesMut};
[INFO] [stdout]    |             ^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Decoder`, `Encoder`
[INFO] [stdout]   --> src/transport.rs:23:23
[INFO] [stdout]    |
[INFO] [stdout] 23 | use tokio_io::codec::{Encoder, Decoder, length_delimited};
[INFO] [stdout]    |                       ^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio_io::AsyncRead`
[INFO] [stdout]   --> src/transport.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use tokio_io::AsyncRead;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `future`, `sink`
[INFO] [stdout]   --> src/transport.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 | use futures::{future, sink, Sink, Stream, Future, IntoFuture};
[INFO] [stdout]    |               ^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SplitSink`, `SplitStream`, `self`
[INFO] [stdout]   --> src/transport.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout] 26 | use futures::stream::{self, SplitSink, SplitStream};
[INFO] [stdout]    |                       ^^^^  ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `uuid::Uuid`
[INFO] [stdout]   --> src/transport.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use uuid::Uuid;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `from_binary`, `to_binary`
[INFO] [stdout]   --> src/transport.rs:29:6
[INFO] [stdout]    |
[INFO] [stdout] 29 | use {to_binary, from_binary};
[INFO] [stdout]    |      ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `kernel::Peer`
[INFO] [stdout]   --> src/transport.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | use kernel::Peer;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/kernel.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn ping(&self, Peer) -> Result<(), ()>;
[INFO] [stdout]    |                    ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Peer`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/kernel.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn purge(&self, Peer);
[INFO] [stdout]    |                     ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Peer`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `crc16_arr`, `crc16`
[INFO] [stdout]   --> src/lib.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 | use crc16::{crc16_arr, crc16};
[INFO] [stdout]    |             ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `tokio_io::codec::length_delimited`: Moved to tokio-codec
[INFO] [stdout]   --> src/transport.rs:23:41
[INFO] [stdout]    |
[INFO] [stdout] 23 | use tokio_io::codec::{Encoder, Decoder, length_delimited};
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tokio_io::length_delimited::FramedRead`: Moved to tokio-codec
[INFO] [stdout]    --> src/transport.rs:108:46
[INFO] [stdout]     |
[INFO] [stdout] 108 |             let deframed = length_delimited::FramedRead::new(socket);
[INFO] [stdout]     |                                              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tokio_io::length_delimited::FramedWrite`: Moved to tokio-codec
[INFO] [stdout]    --> src/transport.rs:143:44
[INFO] [stdout]     |
[INFO] [stdout] 143 |             let framed = length_delimited::FramedWrite::new(socket);
[INFO] [stdout]     |                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/model.rs:62:48
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub struct Process<A>(Vec<(Option<String>, Box<Fn(A) -> A>)>);
[INFO] [stdout]    |                                                ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub struct Process<A>(Vec<(Option<String>, Box<dyn Fn(A) -> A>)>);
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/model.rs:72:29
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub invariants: Vec<Box<Fn(&A) -> bool>>,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub invariants: Vec<Box<dyn Fn(&A) -> bool>>,
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/model.rs:73:49
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub processes: Vec<Vec<(Option<String>, Box<Fn(A) -> A>)>>,
[INFO] [stdout]    |                                                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub processes: Vec<Vec<(Option<String>, Box<dyn Fn(A) -> A>)>>,
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/model.rs:65:41
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn new<'a>(steps: Vec<(&'a str, Box<Fn(A) -> A>)>) -> Process<A> {
[INFO] [stdout]    |                                         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn new<'a>(steps: Vec<(&'a str, Box<dyn Fn(A) -> A>)>) -> Process<A> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::sync::mpsc::UnboundedSender::<T>::send`: renamed to `unbounded_send`
[INFO] [stdout]   --> src/transport.rs:61:24
[INFO] [stdout]    |
[INFO] [stdout] 61 |                     tx.send(msg).unwrap();
[INFO] [stdout]    |                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peer`
[INFO] [stdout]   --> src/kernel.rs:38:20
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn ping(&self, peer: Peer) -> Result<(), ()> {
[INFO] [stdout]    |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_peer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peer`
[INFO] [stdout]   --> src/kernel.rs:42:21
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn purge(&self, peer: Peer) {}
[INFO] [stdout]    |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_peer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `note`
[INFO] [stdout]   --> src/model.rs:84:26
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 let (ref note, ref f) = self.processes[choice][*index];
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_note`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `connections` is never read
[INFO] [stdout]   --> src/transport.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct TCPTransport<Rx, Tx> {
[INFO] [stdout]    |        ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 41 |     connections: Arc<RwLock<HashMap<SocketAddr, mpsc::UnboundedSender<Tx>>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/transport.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | / impl<Rx, Tx> TCPTransport<Rx, Tx>
[INFO] [stdout] 45 | |     where Rx: Decodable + Send + 'static,
[INFO] [stdout] 46 | |           Tx: Encodable + Send + 'static
[INFO] [stdout]    | |________________________________________- associated function in this implementation
[INFO] [stdout] 47 |   {
[INFO] [stdout] 48 |       pub fn new(addr: SocketAddr) -> TCPTransport<Rx, Tx> {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `recv` is never used
[INFO] [stdout]   --> src/transport.rs:91:4
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn recv<T>(addr: SocketAddr) -> Arc<MsQueue<(SocketAddr, T)>>
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `send` is never used
[INFO] [stdout]    --> src/transport.rs:130:4
[INFO] [stdout]     |
[INFO] [stdout] 130 | fn send<T>(addr: SocketAddr) -> mpsc::UnboundedSender<T>
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Connected` and `Disconnected` are never constructed
[INFO] [stdout]  --> src/kernel.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum PeerState {
[INFO] [stdout]   |          --------- variants in this enum
[INFO] [stdout] 2 |     Connected,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 3 |     Disconnected,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `state` and `addr` are never read
[INFO] [stdout]  --> src/kernel.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Peer {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 7 |     state: PeerState,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 8 |     addr: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `peers` is never read
[INFO] [stdout]   --> src/kernel.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct K {
[INFO] [stdout]    |            - field in this struct
[INFO] [stdout] 18 |     peers: Vec<Peer>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cron` is never used
[INFO] [stdout]   --> src/kernel.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl K {
[INFO] [stdout]    | ------ method in this implementation
[INFO] [stdout] 28 |     fn cron(&self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/model.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Runs {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 14 |     fn new<I>(inner: &Vec<Vec<I>>) -> Runs {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Process` is never constructed
[INFO] [stdout]   --> src/model.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub struct Process<A>(Vec<(Option<String>, Box<Fn(A) -> A>)>);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/model.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | impl<A> Process<A> {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 65 |     fn new<'a>(steps: Vec<(&'a str, Box<Fn(A) -> A>)>) -> Process<A> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `System` is never constructed
[INFO] [stdout]   --> src/model.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub struct System<A> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `test` is never used
[INFO] [stdout]   --> src/model.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl<A: Clone> System<A> {
[INFO] [stdout]    | ------------------------ method in this implementation
[INFO] [stdout] 77 |     fn test(&self) -> Result<(), String> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fact` is never used
[INFO] [stdout]    --> src/model.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn fact(n: usize) -> usize {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/transport.rs:109:50
[INFO] [stdout]     |
[INFO] [stdout] 109 |             let rx = deframed.map_err(|e| panic!(e))
[INFO] [stdout]     |                                                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 109 |             let rx = deframed.map_err(|e| panic!("{}", e))
[INFO] [stdout]     |                                                  +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 109 |             let rx = deframed.map_err(|e| std::panic::panic_any(e))
[INFO] [stdout]     |                                           ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/transport.rs:110:65
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 .and_then(|buf| decode(&buf).map_err(|e| panic!(e)));
[INFO] [stdout]     |                                                                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 .and_then(|buf| decode(&buf).map_err(|e| panic!("{}", e)));
[INFO] [stdout]     |                                                                 +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 .and_then(|buf| decode(&buf).map_err(|e| std::panic::panic_any(e)));
[INFO] [stdout]     |                                                          ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/transport.rs:145:37
[INFO] [stdout]     |
[INFO] [stdout] 145 |                 .map_err(|e| panic!(e))
[INFO] [stdout]     |                                     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{:?}" format string to use the `Debug` implementation of `()`
[INFO] [stdout]     |
[INFO] [stdout] 145 |                 .map_err(|e| panic!("{:?}", e))
[INFO] [stdout]     |                                     +++++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 145 |                 .map_err(|e| std::panic::panic_any(e))
[INFO] [stdout]     |                              ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `futures::stream::MapErr` in tuple element 0 that must be used
[INFO] [stdout]    --> src/transport.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |         core.run(client).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: streams do nothing unless polled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 53 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling quickcheck v0.2.27
[INFO] [stderr]    Compiling crack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/transport.rs:160:17
[INFO] [stdout]     |
[INFO] [stdout] 160 | #[derive(Debug, RustcEncodable, RustcDecodable)]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/transport.rs:160:33
[INFO] [stdout]     |
[INFO] [stdout] 160 | #[derive(Debug, RustcEncodable, RustcDecodable)]
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert`
[INFO] [stdout]  --> src/transport.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::convert;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/transport.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/transport.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter`
[INFO] [stdout]  --> src/transport.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::iter;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/transport.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str`
[INFO] [stdout]  --> src/transport.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::str;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::PhantomData`
[INFO] [stdout]  --> src/transport.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::marker::PhantomData;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Handle`
[INFO] [stdout]   --> src/transport.rs:17:33
[INFO] [stdout]    |
[INFO] [stdout] 17 | use tokio_core::reactor::{Core, Handle};
[INFO] [stdout]    |                                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DecodingResult`
[INFO] [stdout]   --> src/transport.rs:20:48
[INFO] [stdout]    |
[INFO] [stdout] 20 | use bincode::rustc_serialize::{encode, decode, DecodingResult};
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json`
[INFO] [stdout]   --> src/transport.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufMut`, `BytesMut`
[INFO] [stdout]   --> src/transport.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 | use bytes::{BufMut, BytesMut};
[INFO] [stdout]    |             ^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Decoder`, `Encoder`
[INFO] [stdout]   --> src/transport.rs:23:23
[INFO] [stdout]    |
[INFO] [stdout] 23 | use tokio_io::codec::{Encoder, Decoder, length_delimited};
[INFO] [stdout]    |                       ^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio_io::AsyncRead`
[INFO] [stdout]   --> src/transport.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use tokio_io::AsyncRead;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `future`, `sink`
[INFO] [stdout]   --> src/transport.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 | use futures::{future, sink, Sink, Stream, Future, IntoFuture};
[INFO] [stdout]    |               ^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SplitSink`, `SplitStream`, `self`
[INFO] [stdout]   --> src/transport.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout] 26 | use futures::stream::{self, SplitSink, SplitStream};
[INFO] [stdout]    |                       ^^^^  ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `uuid::Uuid`
[INFO] [stdout]   --> src/transport.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use uuid::Uuid;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `from_binary`, `to_binary`
[INFO] [stdout]   --> src/transport.rs:29:6
[INFO] [stdout]    |
[INFO] [stdout] 29 | use {to_binary, from_binary};
[INFO] [stdout]    |      ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `kernel::Peer`
[INFO] [stdout]   --> src/transport.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | use kernel::Peer;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/kernel.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn ping(&self, Peer) -> Result<(), ()>;
[INFO] [stdout]    |                    ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Peer`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/kernel.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn purge(&self, Peer);
[INFO] [stdout]    |                     ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Peer`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `crc16_arr`, `crc16`
[INFO] [stdout]   --> src/lib.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 | use crc16::{crc16_arr, crc16};
[INFO] [stdout]    |             ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `tokio_io::codec::length_delimited`: Moved to tokio-codec
[INFO] [stdout]   --> src/transport.rs:23:41
[INFO] [stdout]    |
[INFO] [stdout] 23 | use tokio_io::codec::{Encoder, Decoder, length_delimited};
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tokio_io::length_delimited::FramedRead`: Moved to tokio-codec
[INFO] [stdout]    --> src/transport.rs:108:46
[INFO] [stdout]     |
[INFO] [stdout] 108 |             let deframed = length_delimited::FramedRead::new(socket);
[INFO] [stdout]     |                                              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tokio_io::length_delimited::FramedWrite`: Moved to tokio-codec
[INFO] [stdout]    --> src/transport.rs:143:44
[INFO] [stdout]     |
[INFO] [stdout] 143 |             let framed = length_delimited::FramedWrite::new(socket);
[INFO] [stdout]     |                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]    --> src/transport.rs:172:17
[INFO] [stdout]     |
[INFO] [stdout] 172 |         thread::sleep_ms(300);
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/model.rs:62:48
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub struct Process<A>(Vec<(Option<String>, Box<Fn(A) -> A>)>);
[INFO] [stdout]    |                                                ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub struct Process<A>(Vec<(Option<String>, Box<dyn Fn(A) -> A>)>);
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/model.rs:72:29
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub invariants: Vec<Box<Fn(&A) -> bool>>,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub invariants: Vec<Box<dyn Fn(&A) -> bool>>,
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/model.rs:73:49
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub processes: Vec<Vec<(Option<String>, Box<Fn(A) -> A>)>>,
[INFO] [stdout]    |                                                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub processes: Vec<Vec<(Option<String>, Box<dyn Fn(A) -> A>)>>,
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/model.rs:65:41
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn new<'a>(steps: Vec<(&'a str, Box<Fn(A) -> A>)>) -> Process<A> {
[INFO] [stdout]    |                                         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn new<'a>(steps: Vec<(&'a str, Box<dyn Fn(A) -> A>)>) -> Process<A> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::sync::mpsc::UnboundedSender::<T>::send`: renamed to `unbounded_send`
[INFO] [stdout]   --> src/transport.rs:61:24
[INFO] [stdout]    |
[INFO] [stdout] 61 |                     tx.send(msg).unwrap();
[INFO] [stdout]    |                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/transport.rs:180:13
[INFO] [stdout]     |
[INFO] [stdout] 180 |         for i in 1..4 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peer`
[INFO] [stdout]   --> src/kernel.rs:38:20
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn ping(&self, peer: Peer) -> Result<(), ()> {
[INFO] [stdout]    |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_peer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peer`
[INFO] [stdout]   --> src/kernel.rs:42:21
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn purge(&self, peer: Peer) {}
[INFO] [stdout]    |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_peer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `note`
[INFO] [stdout]   --> src/model.rs:84:26
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 let (ref note, ref f) = self.processes[choice][*index];
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_note`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `connections` is never read
[INFO] [stdout]   --> src/transport.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct TCPTransport<Rx, Tx> {
[INFO] [stdout]    |        ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 41 |     connections: Arc<RwLock<HashMap<SocketAddr, mpsc::UnboundedSender<Tx>>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/transport.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | / impl<Rx, Tx> TCPTransport<Rx, Tx>
[INFO] [stdout] 45 | |     where Rx: Decodable + Send + 'static,
[INFO] [stdout] 46 | |           Tx: Encodable + Send + 'static
[INFO] [stdout]    | |________________________________________- associated function in this implementation
[INFO] [stdout] 47 |   {
[INFO] [stdout] 48 |       pub fn new(addr: SocketAddr) -> TCPTransport<Rx, Tx> {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Connected` and `Disconnected` are never constructed
[INFO] [stdout]  --> src/kernel.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum PeerState {
[INFO] [stdout]   |          --------- variants in this enum
[INFO] [stdout] 2 |     Connected,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 3 |     Disconnected,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `state` and `addr` are never read
[INFO] [stdout]  --> src/kernel.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Peer {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 7 |     state: PeerState,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 8 |     addr: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `peers` is never read
[INFO] [stdout]   --> src/kernel.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct K {
[INFO] [stdout]    |            - field in this struct
[INFO] [stdout] 18 |     peers: Vec<Peer>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cron` is never used
[INFO] [stdout]   --> src/kernel.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl K {
[INFO] [stdout]    | ------ method in this implementation
[INFO] [stdout] 28 |     fn cron(&self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Inner` is never constructed
[INFO] [stdout]   --> src/fsm.rs:39:16
[INFO] [stdout]    |
[INFO] [stdout] 39 |         struct Inner {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fact` is never used
[INFO] [stdout]    --> src/model.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn fact(n: usize) -> usize {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/transport.rs:109:50
[INFO] [stdout]     |
[INFO] [stdout] 109 |             let rx = deframed.map_err(|e| panic!(e))
[INFO] [stdout]     |                                                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 109 |             let rx = deframed.map_err(|e| panic!("{}", e))
[INFO] [stdout]     |                                                  +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 109 |             let rx = deframed.map_err(|e| std::panic::panic_any(e))
[INFO] [stdout]     |                                           ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/transport.rs:110:65
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 .and_then(|buf| decode(&buf).map_err(|e| panic!(e)));
[INFO] [stdout]     |                                                                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 .and_then(|buf| decode(&buf).map_err(|e| panic!("{}", e)));
[INFO] [stdout]     |                                                                 +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 .and_then(|buf| decode(&buf).map_err(|e| std::panic::panic_any(e)));
[INFO] [stdout]     |                                                          ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/transport.rs:145:37
[INFO] [stdout]     |
[INFO] [stdout] 145 |                 .map_err(|e| panic!(e))
[INFO] [stdout]     |                                     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{:?}" format string to use the `Debug` implementation of `()`
[INFO] [stdout]     |
[INFO] [stdout] 145 |                 .map_err(|e| panic!("{:?}", e))
[INFO] [stdout]     |                                     +++++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 145 |                 .map_err(|e| std::panic::panic_any(e))
[INFO] [stdout]     |                              ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `futures::stream::MapErr` in tuple element 0 that must be used
[INFO] [stdout]    --> src/transport.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |         core.run(client).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: streams do nothing unless polled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 49 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.57s
[INFO] running `Command { std: "docker" "inspect" "5d62bd8cc7f2c430ff5a2fbe8f79f97338c654347c869264f096775df4b2b219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d62bd8cc7f2c430ff5a2fbe8f79f97338c654347c869264f096775df4b2b219", kill_on_drop: false }`
[INFO] [stdout] 5d62bd8cc7f2c430ff5a2fbe8f79f97338c654347c869264f096775df4b2b219
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.76.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 10d54074f46d8dcbb71b45dfa584f9057564f98de54a2b91d574e35b904a3a37
[INFO] running `Command { std: "docker" "start" "-a" "10d54074f46d8dcbb71b45dfa584f9057564f98de54a2b91d574e35b904a3a37", kill_on_drop: false }`
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stderr]    --> src/transport.rs:160:17
[INFO] [stderr]     |
[INFO] [stderr] 160 | #[derive(Debug, RustcEncodable, RustcDecodable)]
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stderr]    --> src/transport.rs:160:33
[INFO] [stderr]     |
[INFO] [stderr] 160 | #[derive(Debug, RustcEncodable, RustcDecodable)]
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::convert`
[INFO] [stderr]  --> src/transport.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::convert;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]  --> src/transport.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::cell::RefCell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/transport.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter`
[INFO] [stderr]  --> src/transport.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::iter;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/transport.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]  --> src/transport.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::str;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::marker::PhantomData`
[INFO] [stderr]  --> src/transport.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::marker::PhantomData;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Handle`
[INFO] [stderr]   --> src/transport.rs:17:33
[INFO] [stderr]    |
[INFO] [stderr] 17 | use tokio_core::reactor::{Core, Handle};
[INFO] [stderr]    |                                 ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `DecodingResult`
[INFO] [stderr]   --> src/transport.rs:20:48
[INFO] [stderr]    |
[INFO] [stderr] 20 | use bincode::rustc_serialize::{encode, decode, DecodingResult};
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde_json`
[INFO] [stderr]   --> src/transport.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | use serde_json;
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufMut`, `BytesMut`
[INFO] [stderr]   --> src/transport.rs:22:13
[INFO] [stderr]    |
[INFO] [stderr] 22 | use bytes::{BufMut, BytesMut};
[INFO] [stderr]    |             ^^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Decoder`, `Encoder`
[INFO] [stderr]   --> src/transport.rs:23:23
[INFO] [stderr]    |
[INFO] [stderr] 23 | use tokio_io::codec::{Encoder, Decoder, length_delimited};
[INFO] [stderr]    |                       ^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tokio_io::AsyncRead`
[INFO] [stderr]   --> src/transport.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | use tokio_io::AsyncRead;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `future`, `sink`
[INFO] [stderr]   --> src/transport.rs:25:15
[INFO] [stderr]    |
[INFO] [stderr] 25 | use futures::{future, sink, Sink, Stream, Future, IntoFuture};
[INFO] [stderr]    |               ^^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SplitSink`, `SplitStream`, `self`
[INFO] [stderr]   --> src/transport.rs:26:23
[INFO] [stderr]    |
[INFO] [stderr] 26 | use futures::stream::{self, SplitSink, SplitStream};
[INFO] [stderr]    |                       ^^^^  ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `uuid::Uuid`
[INFO] [stderr]   --> src/transport.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 | use uuid::Uuid;
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `from_binary`, `to_binary`
[INFO] [stderr]   --> src/transport.rs:29:6
[INFO] [stderr]    |
[INFO] [stderr] 29 | use {to_binary, from_binary};
[INFO] [stderr]    |      ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `kernel::Peer`
[INFO] [stderr]   --> src/transport.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 | use kernel::Peer;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]   --> src/kernel.rs:13:20
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn ping(&self, Peer) -> Result<(), ()>;
[INFO] [stderr]    |                    ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Peer`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]   --> src/kernel.rs:14:21
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn purge(&self, Peer);
[INFO] [stderr]    |                     ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Peer`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `crc16_arr`, `crc16`
[INFO] [stderr]   --> src/lib.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 | use crc16::{crc16_arr, crc16};
[INFO] [stderr]    |             ^^^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated module `tokio_io::codec::length_delimited`: Moved to tokio-codec
[INFO] [stderr]   --> src/transport.rs:23:41
[INFO] [stderr]    |
[INFO] [stderr] 23 | use tokio_io::codec::{Encoder, Decoder, length_delimited};
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated struct `tokio_io::length_delimited::FramedRead`: Moved to tokio-codec
[INFO] [stderr]    --> src/transport.rs:108:46
[INFO] [stderr]     |
[INFO] [stderr] 108 |             let deframed = length_delimited::FramedRead::new(socket);
[INFO] [stderr]     |                                              ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated struct `tokio_io::length_delimited::FramedWrite`: Moved to tokio-codec
[INFO] [stderr]    --> src/transport.rs:143:44
[INFO] [stderr]     |
[INFO] [stderr] 143 |             let framed = length_delimited::FramedWrite::new(socket);
[INFO] [stderr]     |                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/model.rs:62:48
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub struct Process<A>(Vec<(Option<String>, Box<Fn(A) -> A>)>);
[INFO] [stderr]    |                                                ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub struct Process<A>(Vec<(Option<String>, Box<dyn Fn(A) -> A>)>);
[INFO] [stderr]    |                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/model.rs:72:29
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub invariants: Vec<Box<Fn(&A) -> bool>>,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub invariants: Vec<Box<dyn Fn(&A) -> bool>>,
[INFO] [stderr]    |                             +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/model.rs:73:49
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub processes: Vec<Vec<(Option<String>, Box<Fn(A) -> A>)>>,
[INFO] [stderr]    |                                                 ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub processes: Vec<Vec<(Option<String>, Box<dyn Fn(A) -> A>)>>,
[INFO] [stderr]    |                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/model.rs:65:41
[INFO] [stderr]    |
[INFO] [stderr] 65 |     fn new<'a>(steps: Vec<(&'a str, Box<Fn(A) -> A>)>) -> Process<A> {
[INFO] [stderr]    |                                         ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 65 |     fn new<'a>(steps: Vec<(&'a str, Box<dyn Fn(A) -> A>)>) -> Process<A> {
[INFO] [stderr]    |                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `futures::sync::mpsc::UnboundedSender::<T>::send`: renamed to `unbounded_send`
[INFO] [stderr]   --> src/transport.rs:61:24
[INFO] [stderr]    |
[INFO] [stderr] 61 |                     tx.send(msg).unwrap();
[INFO] [stderr]    |                        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `peer`
[INFO] [stderr]   --> src/kernel.rs:38:20
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn ping(&self, peer: Peer) -> Result<(), ()> {
[INFO] [stderr]    |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_peer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `peer`
[INFO] [stderr]   --> src/kernel.rs:42:21
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn purge(&self, peer: Peer) {}
[INFO] [stderr]    |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_peer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `note`
[INFO] [stderr]   --> src/model.rs:84:26
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 let (ref note, ref f) = self.processes[choice][*index];
[INFO] [stderr]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_note`
[INFO] [stderr] 
[INFO] [stderr] warning: field `connections` is never read
[INFO] [stderr]   --> src/transport.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | struct TCPTransport<Rx, Tx> {
[INFO] [stderr]    |        ------------ field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 41 |     connections: Arc<RwLock<HashMap<SocketAddr, mpsc::UnboundedSender<Tx>>>>,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/transport.rs:48:12
[INFO] [stderr]    |
[INFO] [stderr] 44 | / impl<Rx, Tx> TCPTransport<Rx, Tx>
[INFO] [stderr] 45 | |     where Rx: Decodable + Send + 'static,
[INFO] [stderr] 46 | |           Tx: Encodable + Send + 'static
[INFO] [stderr]    | |________________________________________- associated function in this implementation
[INFO] [stderr] 47 |   {
[INFO] [stderr] 48 |       pub fn new(addr: SocketAddr) -> TCPTransport<Rx, Tx> {
[INFO] [stderr]    |              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `recv` is never used
[INFO] [stderr]   --> src/transport.rs:91:4
[INFO] [stderr]    |
[INFO] [stderr] 91 | fn recv<T>(addr: SocketAddr) -> Arc<MsQueue<(SocketAddr, T)>>
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `send` is never used
[INFO] [stderr]    --> src/transport.rs:130:4
[INFO] [stderr]     |
[INFO] [stderr] 130 | fn send<T>(addr: SocketAddr) -> mpsc::UnboundedSender<T>
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Connected` and `Disconnected` are never constructed
[INFO] [stderr]  --> src/kernel.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub enum PeerState {
[INFO] [stderr]   |          --------- variants in this enum
[INFO] [stderr] 2 |     Connected,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 3 |     Disconnected,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `state` and `addr` are never read
[INFO] [stderr]  --> src/kernel.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Peer {
[INFO] [stderr]   |            ---- fields in this struct
[INFO] [stderr] 7 |     state: PeerState,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 8 |     addr: String,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `peers` is never read
[INFO] [stderr]   --> src/kernel.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct K {
[INFO] [stderr]    |            - field in this struct
[INFO] [stderr] 18 |     peers: Vec<Peer>,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `cron` is never used
[INFO] [stderr]   --> src/kernel.rs:28:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | impl K {
[INFO] [stderr]    | ------ method in this implementation
[INFO] [stderr] 28 |     fn cron(&self) {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/model.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 13 | impl Runs {
[INFO] [stderr]    | --------- associated function in this implementation
[INFO] [stderr] 14 |     fn new<I>(inner: &Vec<Vec<I>>) -> Runs {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Process` is never constructed
[INFO] [stderr]   --> src/model.rs:62:12
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub struct Process<A>(Vec<(Option<String>, Box<Fn(A) -> A>)>);
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/model.rs:65:8
[INFO] [stderr]    |
[INFO] [stderr] 64 | impl<A> Process<A> {
[INFO] [stderr]    | ------------------ associated function in this implementation
[INFO] [stderr] 65 |     fn new<'a>(steps: Vec<(&'a str, Box<Fn(A) -> A>)>) -> Process<A> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `System` is never constructed
[INFO] [stderr]   --> src/model.rs:70:12
[INFO] [stderr]    |
[INFO] [stderr] 70 | pub struct System<A> {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `test` is never used
[INFO] [stderr]   --> src/model.rs:77:8
[INFO] [stderr]    |
[INFO] [stderr] 76 | impl<A: Clone> System<A> {
[INFO] [stderr]    | ------------------------ method in this implementation
[INFO] [stderr] 77 |     fn test(&self) -> Result<(), String> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `fact` is never used
[INFO] [stderr]    --> src/model.rs:101:4
[INFO] [stderr]     |
[INFO] [stderr] 101 | fn fact(n: usize) -> usize {
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/transport.rs:109:50
[INFO] [stderr]     |
[INFO] [stderr] 109 |             let rx = deframed.map_err(|e| panic!(e))
[INFO] [stderr]     |                                                  ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]     |
[INFO] [stderr] 109 |             let rx = deframed.map_err(|e| panic!("{}", e))
[INFO] [stderr]     |                                                  +++++
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 109 |             let rx = deframed.map_err(|e| std::panic::panic_any(e))
[INFO] [stderr]     |                                           ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/transport.rs:110:65
[INFO] [stderr]     |
[INFO] [stderr] 110 |                 .and_then(|buf| decode(&buf).map_err(|e| panic!(e)));
[INFO] [stderr]     |                                                                 ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]     |
[INFO] [stderr] 110 |                 .and_then(|buf| decode(&buf).map_err(|e| panic!("{}", e)));
[INFO] [stderr]     |                                                                 +++++
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 110 |                 .and_then(|buf| decode(&buf).map_err(|e| std::panic::panic_any(e)));
[INFO] [stderr]     |                                                          ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/transport.rs:145:37
[INFO] [stderr]     |
[INFO] [stderr] 145 |                 .map_err(|e| panic!(e))
[INFO] [stderr]     |                                     ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{:?}" format string to use the `Debug` implementation of `()`
[INFO] [stderr]     |
[INFO] [stderr] 145 |                 .map_err(|e| panic!("{:?}", e))
[INFO] [stderr]     |                                     +++++++
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 145 |                 .map_err(|e| std::panic::panic_any(e))
[INFO] [stderr]     |                              ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] 
[INFO] [stderr] warning: unused `futures::stream::MapErr` in tuple element 0 that must be used
[INFO] [stderr]    --> src/transport.rs:151:9
[INFO] [stderr]     |
[INFO] [stderr] 151 |         core.run(client).unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: streams do nothing unless polled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stderr]    --> src/transport.rs:172:17
[INFO] [stderr]     |
[INFO] [stderr] 172 |         thread::sleep_ms(300);
[INFO] [stderr]     |                 ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/transport.rs:180:13
[INFO] [stderr]     |
[INFO] [stderr] 180 |         for i in 1..4 {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `peer`
[INFO] [stderr]   --> src/kernel.rs:38:20
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn ping(&self, peer: Peer) -> Result<(), ()> {
[INFO] [stderr]    |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_peer`
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Inner` is never constructed
[INFO] [stderr]   --> src/fsm.rs:39:16
[INFO] [stderr]    |
[INFO] [stderr] 39 |         struct Inner {
[INFO] [stderr]    |                ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `crack` (lib) generated 53 warnings (run `cargo fix --lib -p crack` to apply 31 suggestions)
[INFO] [stderr] warning: `crack` (lib test) generated 49 warnings (45 duplicates) (run `cargo fix --lib -p crack --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/crack-1f5124d545863644)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test fsm::tests::it_works ... ignored
[INFO] [stderr] thread 'transport::tests::it_works' panicked at library/core/src/panicking.rs:155:5:
[INFO] [stdout] test crc16::test_crc16 ... ok
[INFO] [stderr] attempted to leave type `(core::net::socket_addr::SocketAddr, transport::Msg)` uninitialized, which is invalid
[INFO] [stdout] test kernel::tests::it_works ... ok
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x559a3d6f1e36 - std::backtrace_rs::backtrace::libunwind::trace::hbee8a7973eeb6c93
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stderr]    1:     0x559a3d6f1e36 - std::backtrace_rs::backtrace::trace_unsynchronized::hc8ac75eea3aa6899
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x559a3d6f1e36 - std::sys_common::backtrace::_print_fmt::hc7f3e3b5298b1083
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]    3:     0x559a3d6f1e36 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hbb235daedd7c6190
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]    4:     0x559a3d71d580 - core::fmt::rt::Argument::fmt::h76c38a80d925a410
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]    5:     0x559a3d71d580 - core::fmt::write::h3ed6aeaa977c8e45
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/fmt/mod.rs:1120:17
[INFO] [stderr]    6:     0x559a3d6ef3bf - std::io::Write::write_fmt::h78b18af5775fedb5
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/io/mod.rs:1810:15
[INFO] [stderr]    7:     0x559a3d6f1c14 - std::sys_common::backtrace::_print::h5d645a07e0fcfdbb
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]    8:     0x559a3d6f1c14 - std::sys_common::backtrace::print::h85035a511aafe7a8
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]    9:     0x559a3d6f3987 - std::panicking::default_hook::{{closure}}::hcce8cea212785a25
[INFO] [stderr]   10:     0x559a3d6f36e9 - std::panicking::default_hook::hf5fcb0f213fe709a
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:292:9
[INFO] [stderr]   11:     0x559a3d5b6f87 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h60265c2dfa87ee34
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/alloc/src/boxed.rs:2029:9
[INFO] [stderr]   12:     0x559a3d5b6f87 - test::test_main::{{closure}}::h77865bd3127078c6
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:138:21
[INFO] [stderr]   13:     0x559a3d6f3fa6 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hbc5ccf4eb663e1e5
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/alloc/src/boxed.rs:2029:9
[INFO] [stderr]   14:     0x559a3d6f3fa6 - std::panicking::rust_panic_with_hook::h095fccf1dc9379ee
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:783:13
[INFO] [stderr]   15:     0x559a3d6f3cb9 - std::panicking::begin_panic_handler::{{closure}}::h032ba12139b353db
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:649:13
[INFO] [stderr]   16:     0x559a3d6f2336 - std::sys_common::backtrace::__rust_end_short_backtrace::h9259bc2ff8fd0f76
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]   17:     0x559a3d6f3a50 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:645:5
[INFO] [stderr]   18:     0x559a3d551d9a - core::panicking::panic_nounwind_fmt::runtime::hc18fd4a76c1e2aab
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/panicking.rs:110:18
[INFO] [stderr]   19:     0x559a3d551d9a - core::panicking::panic_nounwind_fmt::hcb87f45b1afb5c5d
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/panicking.rs:122:9
[INFO] [stderr]   20:     0x559a3d551e49 - core::panicking::panic_nounwind::h63c25437b93d358c
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/panicking.rs:155:5
[INFO] [stderr]   21:     0x559a3d55af4f - core::mem::uninitialized::h94125a5495cfe871
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/mem/mod.rs:693:9
[INFO] [stderr]   22:     0x559a3d55af4f - crossbeam::sync::ms_queue::MsQueue<T>::new::h4546e2ecc556f6b6
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-0.2.12/src/sync/ms_queue.rs:66:45
[INFO] [stderr]   23:     0x559a3d55cc4b - crack::transport::recv::h47a7b9aedb9310fa
[INFO] [stderr]                                at /opt/rustwide/workdir/src/transport.rs:95:25
[INFO] [stderr]   24:     0x559a3d55dea9 - crack::transport::tests::it_works::hdfe8e15092cb1fb5
[INFO] [stderr]                                at /opt/rustwide/workdir/src/transport.rs:171:18
[INFO] [stderr]   25:     0x559a3d55de37 - crack::transport::tests::it_works::{{closure}}::h753f41739c3db955
[INFO] [stderr]                                at /opt/rustwide/workdir/src/transport.rs:170:18
[INFO] [stderr]   26:     0x559a3d570f76 - core::ops::function::FnOnce::call_once::h0ba66a2499137a03
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   27:     0x559a3d5bc85f - core::ops::function::FnOnce::call_once::h8dc6907944022cf6
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   28:     0x559a3d5bc85f - test::__rust_begin_short_backtrace::haae1a87433f1efb3
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:627:18
[INFO] [stderr]   29:     0x559a3d5bb5e1 - test::run_test_in_process::{{closure}}::h8c7decfa7c14e152
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:650:60
[INFO] [stderr]   30:     0x559a3d5bb5e1 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h19e6ff056d9d21e9
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stderr]   31:     0x559a3d5bb5e1 - std::panicking::try::do_call::h89c848fcaa37c035
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:552:40
[INFO] [stderr]   32:     0x559a3d5bb5e1 - std::panicking::try::h57ab3dc74e2839b8
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:516:19
[INFO] [stderr]   33:     0x559a3d5bb5e1 - std::panic::catch_unwind::hfb6a1b1abc120fb9
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panic.rs:142:14
[INFO] [stderr]   34:     0x559a3d5bb5e1 - test::run_test_in_process::h5ae2f9875edd562d
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:650:27
[INFO] [stderr]   35:     0x559a3d5bb5e1 - test::run_test::{{closure}}::h35d7300d8928a067
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:573:43
[INFO] [stderr]   36:     0x559a3d582916 - test::run_test::{{closure}}::h7525ced405d23d1b
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:601:41
[INFO] [stderr]   37:     0x559a3d582916 - std::sys_common::backtrace::__rust_begin_short_backtrace::h4e7db78ce05afad8
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stderr]   38:     0x559a3d587977 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hcfbcb64f1a1b3482
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/thread/mod.rs:529:17
[INFO] [stderr]   39:     0x559a3d587977 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9d89c5c4108bd689
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stderr]   40:     0x559a3d587977 - std::panicking::try::do_call::h8a4869bc94ec50c9
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:552:40
[INFO] [stderr]   41:     0x559a3d587977 - std::panicking::try::h9a576f20ff81ac30
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:516:19
[INFO] [stderr]   42:     0x559a3d587977 - std::panic::catch_unwind::hbcb4e3f860ef9830
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panic.rs:142:14
[INFO] [stderr]   43:     0x559a3d587977 - std::thread::Builder::spawn_unchecked_::{{closure}}::h93c79a6be1505948
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/thread/mod.rs:528:30
[INFO] [stderr]   44:     0x559a3d587977 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h426d96740c81bdaf
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   45:     0x559a3d6f8af5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h12de4fc57affb195
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/alloc/src/boxed.rs:2015:9
[INFO] [stderr]   46:     0x559a3d6f8af5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h3c619f45059d5cf1
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/alloc/src/boxed.rs:2015:9
[INFO] [stderr]   47:     0x559a3d6f8af5 - std::sys::unix::thread::Thread::new::thread_start::hbac657605e4b7389
[INFO] [stderr]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stderr]   48:     0x7fef6eb63ac3 - <unknown>
[INFO] [stderr]   49:     0x7fef6ebf4bf4 - __clone
[INFO] [stderr]   50:                0x0 - <unknown>
[INFO] [stderr] thread caused non-unwinding panic. aborting.
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/crack-1f5124d545863644` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "10d54074f46d8dcbb71b45dfa584f9057564f98de54a2b91d574e35b904a3a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10d54074f46d8dcbb71b45dfa584f9057564f98de54a2b91d574e35b904a3a37", kill_on_drop: false }`
[INFO] [stdout] 10d54074f46d8dcbb71b45dfa584f9057564f98de54a2b91d574e35b904a3a37
