[INFO] updating cached repository et4te/swim
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/et4te/swim
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/et4te/swim" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/et4te/swim"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/et4te/swim'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/et4te/swim" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/et4te/swim"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/et4te/swim'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3bb49e22e1cfe12cd081aeac06ceb883535a92a7
[INFO] sha for GitHub repo et4te/swim: 3bb49e22e1cfe12cd081aeac06ceb883535a92a7
[INFO] validating manifest of et4te/swim on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of et4te/swim on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing et4te/swim
[INFO] finished frobbing et4te/swim
[INFO] frobbed toml for et4te/swim written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/et4te/swim/Cargo.toml
[INFO] started frobbing et4te/swim
[INFO] finished frobbing et4te/swim
[INFO] frobbed toml for et4te/swim written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/et4te/swim/Cargo.toml
[INFO] crate et4te/swim already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking et4te/swim against try#58b21121d0b447ceb3f1a655155d802191acf044 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-6/try#58b21121d0b447ceb3f1a655155d802191acf044:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/et4te/swim:/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" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6c7c38299731de9ff061adfcb68a31b672d0eda6209cb7cff17290ddf869397a
[INFO] running `"docker" "start" "-a" "6c7c38299731de9ff061adfcb68a31b672d0eda6209cb7cff17290ddf869397a"`
[INFO] [stderr]     Checking crossbeam-utils v0.6.1 (https://github.com/crossbeam-rs/crossbeam#d627067b)
[INFO] [stderr]     Checking tokio-executor v0.1.5 (https://github.com/tokio-rs/tokio#09f2ac85)
[INFO] [stderr]     Checking tokio-io v0.1.10 (https://github.com/tokio-rs/tokio#09f2ac85)
[INFO] [stderr]     Checking tokio-serde v0.3.0
[INFO] [stderr]     Checking pretty_env_logger v0.2.5
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1 (https://github.com/crossbeam-rs/crossbeam#d627067b)
[INFO] [stderr]     Checking tokio-threadpool v0.1.8 (https://github.com/tokio-rs/tokio#09f2ac85)
[INFO] [stderr]     Checking tokio-timer v0.2.7 (https://github.com/tokio-rs/tokio#09f2ac85)
[INFO] [stderr]     Checking tokio-current-thread v0.1.3 (https://github.com/tokio-rs/tokio#09f2ac85)
[INFO] [stderr]     Checking crossbeam-channel v0.3.2 (https://github.com/crossbeam-rs/crossbeam#d627067b)
[INFO] [stderr]     Checking crossbeam-deque v0.6.2 (https://github.com/crossbeam-rs/crossbeam#d627067b)
[INFO] [stderr]     Checking crossbeam-skiplist v0.0.0 (https://github.com/crossbeam-rs/crossbeam#d627067b)
[INFO] [stderr]     Checking tokio-codec v0.1.1 (https://github.com/tokio-rs/tokio#09f2ac85)
[INFO] [stderr]     Checking tokio-reactor v0.1.6 (https://github.com/tokio-rs/tokio#09f2ac85)
[INFO] [stderr]     Checking tokio-fs v0.1.4 (https://github.com/tokio-rs/tokio#09f2ac85)
[INFO] [stderr]     Checking tokio-udp v0.1.2 (https://github.com/tokio-rs/tokio#09f2ac85)
[INFO] [stderr]     Checking tokio-uds v0.2.3 (https://github.com/tokio-rs/tokio#09f2ac85)
[INFO] [stderr]     Checking tokio-tcp v0.1.2 (https://github.com/tokio-rs/tokio#09f2ac85)
[INFO] [stderr]     Checking crossbeam v0.5.0 (https://github.com/crossbeam-rs/crossbeam#d627067b)
[INFO] [stderr]     Checking tokio v0.1.12 (https://github.com/tokio-rs/tokio#09f2ac85)
[INFO] [stderr]     Checking swim v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `adj`
[INFO] [stderr]   --> src/digraph.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn adj(&self, v: u32) -> Vec<u32> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `outdegree`
[INFO] [stderr]   --> src/digraph.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn outdegree(&self, v: u32) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `indegree`
[INFO] [stderr]   --> src/digraph.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn indegree(&self, v: u32) -> u32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reverse`
[INFO] [stderr]   --> src/digraph.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     pub fn reverse(&self) -> Digraph {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `A`
[INFO] [stderr]   --> src/protocol/slush.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const A: f32 = 0.5;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `K`
[INFO] [stderr]   --> src/protocol/slush.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | const K: usize = 4;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/protocol/slush.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn new(addr: NetAddr) -> Slush {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_col`
[INFO] [stderr]   --> src/protocol/slush.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn set_col(&mut self, col: Colour) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_query`
[INFO] [stderr]   --> src/protocol/slush.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn send_query(&self, tx: ColourTx, peer_addr: NetAddr) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `handle_query`
[INFO] [stderr]   --> src/protocol/slush.rs:66:5
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn handle_query(&mut self, tx: ResponseTx, col: Colour) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `run`
[INFO] [stderr]   --> src/protocol/slush.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     pub fn run(&mut self, tx: &ColourTx, rx: &mut ColourRx, membership: &Membership) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `outcome`
[INFO] [stderr]    --> src/protocol/slush.rs:112:1
[INFO] [stderr]     |
[INFO] [stderr] 112 | pub fn outcome(votes: Vec<Colour>) -> (u32, u32) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `A`
[INFO] [stderr]   --> src/protocol/snowflake.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | const A: f32 = 0.5;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `B`
[INFO] [stderr]   --> src/protocol/snowflake.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const B: u32 = 11;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `K`
[INFO] [stderr]   --> src/protocol/snowflake.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | const K: usize = 4;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Snowflake`
[INFO] [stderr]   --> src/protocol/snowflake.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct Snowflake {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/protocol/snowflake.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn new(addr: NetAddr) -> Snowflake {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_col`
[INFO] [stderr]   --> src/protocol/snowflake.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn set_col(&mut self, col: Colour) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_cnt`
[INFO] [stderr]   --> src/protocol/snowflake.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn set_cnt(&mut self, cnt: u32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_query`
[INFO] [stderr]   --> src/protocol/snowflake.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn send_query(&self, tx: ColourTx, peer_addr: NetAddr) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `handle_query`
[INFO] [stderr]   --> src/protocol/snowflake.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn handle_query(&mut self, tx: ResponseTx, col: Colour) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `run`
[INFO] [stderr]   --> src/protocol/snowflake.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn run(&mut self, tx: &ColourTx, rx: &mut ColourRx, membership: &Membership) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `outcome`
[INFO] [stderr]    --> src/protocol/snowflake.rs:139:1
[INFO] [stderr]     |
[INFO] [stderr] 139 | pub fn outcome(votes: Vec<Colour>) -> (u32, u32) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/digraph.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |         write!(f, "{:?} vertices, {:?} edges\n", self.v(), self.e());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/digraph.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |             write!(f, "{:?}: ", v);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/digraph.rs:16:17
[INFO] [stderr]    |
[INFO] [stderr] 16 |                 write!(f, "{:?} ", w);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/digraph.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |             write!(f, "\n");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]   --> src/digraph.rs:42:12
[INFO] [stderr]    |
[INFO] [stderr] 42 |         if v < 0 || v >= self.v {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_comparisons)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `indegree`
[INFO] [stderr]  --> src/digraph.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     indegree: Vec<u32>, // indegree[v] = indegree of vertex v
[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/digraph.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn new(v: u32) -> Digraph {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `validate_vertex`
[INFO] [stderr]   --> src/digraph.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn validate_vertex(&self, v: u32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_edge`
[INFO] [stderr]   --> src/digraph.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn add_edge(&mut self, v: u32, w: u32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `adj`
[INFO] [stderr]   --> src/digraph.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn adj(&self, v: u32) -> Vec<u32> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `outdegree`
[INFO] [stderr]   --> src/digraph.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn outdegree(&self, v: u32) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `indegree`
[INFO] [stderr]   --> src/digraph.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn indegree(&self, v: u32) -> u32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reverse`
[INFO] [stderr]   --> src/digraph.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     pub fn reverse(&self) -> Digraph {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `A`
[INFO] [stderr]   --> src/protocol/slush.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const A: f32 = 0.5;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `K`
[INFO] [stderr]   --> src/protocol/slush.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | const K: usize = 4;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/protocol/slush.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn new(addr: NetAddr) -> Slush {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_col`
[INFO] [stderr]   --> src/protocol/slush.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn set_col(&mut self, col: Colour) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_query`
[INFO] [stderr]   --> src/protocol/slush.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn send_query(&self, tx: ColourTx, peer_addr: NetAddr) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `handle_query`
[INFO] [stderr]   --> src/protocol/slush.rs:66:5
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn handle_query(&mut self, tx: ResponseTx, col: Colour) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `run`
[INFO] [stderr]   --> src/protocol/slush.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     pub fn run(&mut self, tx: &ColourTx, rx: &mut ColourRx, membership: &Membership) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `outcome`
[INFO] [stderr]    --> src/protocol/slush.rs:112:1
[INFO] [stderr]     |
[INFO] [stderr] 112 | pub fn outcome(votes: Vec<Colour>) -> (u32, u32) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `A`
[INFO] [stderr]   --> src/protocol/snowflake.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | const A: f32 = 0.5;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `B`
[INFO] [stderr]   --> src/protocol/snowflake.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const B: u32 = 11;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `K`
[INFO] [stderr]   --> src/protocol/snowflake.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | const K: usize = 4;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Snowflake`
[INFO] [stderr]   --> src/protocol/snowflake.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct Snowflake {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/protocol/snowflake.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn new(addr: NetAddr) -> Snowflake {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_col`
[INFO] [stderr]   --> src/protocol/snowflake.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn set_col(&mut self, col: Colour) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_cnt`
[INFO] [stderr]   --> src/protocol/snowflake.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn set_cnt(&mut self, cnt: u32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_query`
[INFO] [stderr]   --> src/protocol/snowflake.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn send_query(&self, tx: ColourTx, peer_addr: NetAddr) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `handle_query`
[INFO] [stderr]   --> src/protocol/snowflake.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn handle_query(&mut self, tx: ResponseTx, col: Colour) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `run`
[INFO] [stderr]   --> src/protocol/snowflake.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn run(&mut self, tx: &ColourTx, rx: &mut ColourRx, membership: &Membership) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `outcome`
[INFO] [stderr]    --> src/protocol/snowflake.rs:139:1
[INFO] [stderr]     |
[INFO] [stderr] 139 | pub fn outcome(votes: Vec<Colour>) -> (u32, u32) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/digraph.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |         write!(f, "{:?} vertices, {:?} edges\n", self.v(), self.e());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/digraph.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |             write!(f, "{:?}: ", v);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/digraph.rs:16:17
[INFO] [stderr]    |
[INFO] [stderr] 16 |                 write!(f, "{:?} ", w);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/digraph.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |             write!(f, "\n");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]   --> src/digraph.rs:42:12
[INFO] [stderr]    |
[INFO] [stderr] 42 |         if v < 0 || v >= self.v {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_comparisons)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.83s
[INFO] running `"docker" "inspect" "6c7c38299731de9ff061adfcb68a31b672d0eda6209cb7cff17290ddf869397a"`
[INFO] running `"docker" "rm" "-f" "6c7c38299731de9ff061adfcb68a31b672d0eda6209cb7cff17290ddf869397a"`
[INFO] [stdout] 6c7c38299731de9ff061adfcb68a31b672d0eda6209cb7cff17290ddf869397a