[INFO] crate crack 0.1.0 is already in cache
[INFO] extracting crate crack 0.1.0 into work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/reg/crack/0.1.0
[INFO] extracting crate crack 0.1.0 into work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/reg/crack/0.1.0
[INFO] validating manifest of crack-0.1.0 on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of crack-0.1.0 on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing crack-0.1.0
[INFO] finished frobbing crack-0.1.0
[INFO] frobbed toml for crack-0.1.0 written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/reg/crack/0.1.0/Cargo.toml
[INFO] started frobbing crack-0.1.0
[INFO] finished frobbing crack-0.1.0
[INFO] frobbed toml for crack-0.1.0 written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/reg/crack/0.1.0/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking crack-0.1.0 against try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-3/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/reg/crack/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f3cad47044920089eae750e96eb6b15d6fb4ab094bcbd8eb2c737257efc22f8f
[INFO] running `"docker" "start" "-a" "f3cad47044920089eae750e96eb6b15d6fb4ab094bcbd8eb2c737257efc22f8f"`
[INFO] [stderr]     Checking crdts v1.3.0
[INFO] [stderr]     Checking crack v0.1.0 (/opt/crater/workdir)
[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: 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::fmt::Debug`
[INFO] [stderr]  --> src/transport.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fmt::Debug;
[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: 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 item '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]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_io::codec::length_delimited::FramedRead': Moved to tokio-codec
[INFO] [stderr]    --> src/transport.rs:108:28
[INFO] [stderr]     |
[INFO] [stderr] 108 |             let deframed = length_delimited::FramedRead::new(socket);
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_io::codec::length_delimited::FramedWrite': Moved to tokio-codec
[INFO] [stderr]    --> src/transport.rs:143:26
[INFO] [stderr]     |
[INFO] [stderr] 143 |             let framed = length_delimited::FramedWrite::new(socket);
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]    --> src/transport.rs:172:9
[INFO] [stderr]     |
[INFO] [stderr] 172 |         thread::sleep_ms(300);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[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: 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::fmt::Debug`
[INFO] [stderr]  --> src/transport.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fmt::Debug;
[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: 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 item '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]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_io::codec::length_delimited::FramedRead': Moved to tokio-codec
[INFO] [stderr]    --> src/transport.rs:108:28
[INFO] [stderr]     |
[INFO] [stderr] 108 |             let deframed = length_delimited::FramedRead::new(socket);
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_io::codec::length_delimited::FramedWrite': Moved to tokio-codec
[INFO] [stderr]    --> src/transport.rs:143:26
[INFO] [stderr]     |
[INFO] [stderr] 143 |             let framed = length_delimited::FramedWrite::new(socket);
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '<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: use of deprecated item '<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: `i`
[INFO] [stderr]    --> src/transport.rs:180:13
[INFO] [stderr]     |
[INFO] [stderr] 180 |         for i in 1..4 {
[INFO] [stderr]     |             ^ help: consider prefixing 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: consider prefixing with an underscore: `_peer`
[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: consider prefixing 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: consider prefixing with an underscore: `_note`
[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: consider prefixing 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: consider prefixing 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: consider prefixing with an underscore: `_note`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TCPTransport`
[INFO] [stderr]   --> src/transport.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | struct TCPTransport<Rx, Tx> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/transport.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn new(addr: SocketAddr) -> TCPTransport<Rx, Tx> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Connected`
[INFO] [stderr]  --> src/kernel.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     Connected,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Disconnected`
[INFO] [stderr]  --> src/kernel.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     Disconnected,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `state`
[INFO] [stderr]  --> src/kernel.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     state: PeerState,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `addr`
[INFO] [stderr]  --> src/kernel.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     addr: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `peers`
[INFO] [stderr]   --> src/kernel.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     peers: Vec<Peer>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `cron`
[INFO] [stderr]   --> src/kernel.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn cron(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Inner`
[INFO] [stderr]   --> src/fsm.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |         struct Inner {
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fact`
[INFO] [stderr]    --> src/model.rs:101:1
[INFO] [stderr]     |
[INFO] [stderr] 101 | fn fact(n: usize) -> usize {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TCPTransport`
[INFO] [stderr]   --> src/transport.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | struct TCPTransport<Rx, Tx> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/transport.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn new(addr: SocketAddr) -> TCPTransport<Rx, Tx> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `recv`
[INFO] [stderr]    --> src/transport.rs:91:1
[INFO] [stderr]     |
[INFO] [stderr] 91  | / fn recv<T>(addr: SocketAddr) -> Arc<MsQueue<(SocketAddr, T)>>
[INFO] [stderr] 92  | |     where T: Decodable + Send + 'static
[INFO] [stderr] 93  | | {
[INFO] [stderr] 94  | |
[INFO] [stderr] ...   |
[INFO] [stderr] 127 | |     msgs
[INFO] [stderr] 128 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `send`
[INFO] [stderr]    --> src/transport.rs:130:1
[INFO] [stderr]     |
[INFO] [stderr] 130 | / fn send<T>(addr: SocketAddr) -> mpsc::UnboundedSender<T>
[INFO] [stderr] 131 | |     where T: Encodable + Send + 'static
[INFO] [stderr] 132 | | {
[INFO] [stderr] 133 | |     let (outbound_tx, outbound_rx) = mpsc::unbounded();
[INFO] [stderr] ...   |
[INFO] [stderr] 157 | |     outbound_tx
[INFO] [stderr] 158 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Connected`
[INFO] [stderr]  --> src/kernel.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     Connected,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Disconnected`
[INFO] [stderr]  --> src/kernel.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     Disconnected,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `state`
[INFO] [stderr]  --> src/kernel.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     state: PeerState,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `addr`
[INFO] [stderr]  --> src/kernel.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     addr: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `peers`
[INFO] [stderr]   --> src/kernel.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     peers: Vec<Peer>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `cron`
[INFO] [stderr]   --> src/kernel.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn cron(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Runs`
[INFO] [stderr]  --> src/model.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | struct Runs {
[INFO] [stderr]   | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/model.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn new<I>(inner: &Vec<Vec<I>>) -> Runs {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Process`
[INFO] [stderr]   --> src/model.rs:62:1
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub struct Process<A>(Vec<(Option<String>, Box<Fn(A) -> A>)>);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/model.rs:65:5
[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: struct is never constructed: `System`
[INFO] [stderr]   --> src/model.rs:70:1
[INFO] [stderr]    |
[INFO] [stderr] 70 | pub struct System<A> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `test`
[INFO] [stderr]   --> src/model.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     fn test(&self) -> Result<(), String> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fact`
[INFO] [stderr]    --> src/model.rs:101:1
[INFO] [stderr]     |
[INFO] [stderr] 101 | fn fact(n: usize) -> usize {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.28s
[INFO] running `"docker" "inspect" "f3cad47044920089eae750e96eb6b15d6fb4ab094bcbd8eb2c737257efc22f8f"`
[INFO] running `"docker" "rm" "-f" "f3cad47044920089eae750e96eb6b15d6fb4ab094bcbd8eb2c737257efc22f8f"`
[INFO] [stdout] f3cad47044920089eae750e96eb6b15d6fb4ab094bcbd8eb2c737257efc22f8f