[INFO] cloning repository https://github.com/CryptArchy/RuStatsD
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CryptArchy/RuStatsD" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCryptArchy%2FRuStatsD", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCryptArchy%2FRuStatsD'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 46c08407b102d32b7ff7a764eb7ea182f2ccda78
[INFO] testing CryptArchy/RuStatsD against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCryptArchy%2FRuStatsD" "/workspace/builds/worker-23/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-23/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CryptArchy/RuStatsD on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CryptArchy/RuStatsD
[INFO] finished tweaking git repo https://github.com/CryptArchy/RuStatsD
[INFO] tweaked toml for git repo https://github.com/CryptArchy/RuStatsD written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] crate git repo https://github.com/CryptArchy/RuStatsD already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f592eb0f8e78ff1a94d9bf2bcf9d550b0005e1a81a00abfab3ae5cc2f8cbe29c
[INFO] running `Command { std: "docker" "start" "-a" "f592eb0f8e78ff1a94d9bf2bcf9d550b0005e1a81a00abfab3ae5cc2f8cbe29c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f592eb0f8e78ff1a94d9bf2bcf9d550b0005e1a81a00abfab3ae5cc2f8cbe29c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f592eb0f8e78ff1a94d9bf2bcf9d550b0005e1a81a00abfab3ae5cc2f8cbe29c", kill_on_drop: false }`
[INFO] [stdout] f592eb0f8e78ff1a94d9bf2bcf9d550b0005e1a81a00abfab3ae5cc2f8cbe29c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c678970e0be350559d781c8801c36125cb94e20dd1f3952bfeaa8911ded50d0
[INFO] running `Command { std: "docker" "start" "-a" "3c678970e0be350559d781c8801c36125cb94e20dd1f3952bfeaa8911ded50d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.1.35
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling traitobject v0.0.3
[INFO] [stderr]    Compiling cfg-if v0.1.0
[INFO] [stderr]    Compiling serde v0.7.15
[INFO] [stderr]    Compiling quick-error v1.1.0
[INFO] [stderr]    Compiling log v0.3.6
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling unicode-width v0.1.3
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling vec_map v0.6.0
[INFO] [stderr]    Compiling lazycell v0.4.0
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stderr]    Compiling crossbeam v0.2.10
[INFO] [stderr]    Compiling strsim v0.5.1
[INFO] [stderr]    Compiling antidote v1.0.0
[INFO] [stderr]    Compiling unicode-segmentation v0.1.2
[INFO] [stderr]    Compiling version v2.0.1
[INFO] [stderr]    Compiling bytes v0.3.0
[INFO] [stderr]    Compiling term_size v0.2.1
[INFO] [stderr]    Compiling net2 v0.2.26
[INFO] [stderr]    Compiling unsafe-any v0.4.1
[INFO] [stderr]    Compiling humantime v0.1.3
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling clap v2.13.0
[INFO] [stderr]    Compiling num-integer v0.1.32
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling num-iter v0.1.32
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]    Compiling toml v0.1.30
[INFO] [stderr]    Compiling num v0.1.35
[INFO] [stderr]    Compiling ordered-float v0.1.0
[INFO] [stderr]    Compiling chrono v0.2.25
[INFO] [stderr]    Compiling serde-value v0.2.1
[INFO] [stderr]    Compiling log4rs v0.4.8
[INFO] [stderr]    Compiling mio v0.6.0
[INFO] [stderr]    Compiling rustatsd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sync_token::*`
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sync_token::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TokenSource`
[INFO] [stdout]  --> src/sync_token.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct TokenSource {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Token`
[INFO] [stdout]  --> src/sync_token.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Token {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/sync_token.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new() -> TokenSource {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_token`
[INFO] [stdout]   --> src/sync_token.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn get_token(&self) -> Arc<Token> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `trigger`
[INFO] [stdout]   --> src/sync_token.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn trigger(&self) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_triggered`
[INFO] [stdout]   --> src/sync_token.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn is_triggered(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::io::Read;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AppSettings`, `App`, `Arg`
[INFO] [stdout]   --> src/main.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | use clap::{Arg, App, AppSettings};
[INFO] [stdout]    |            ^^^  ^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/metrics.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::result`
[INFO] [stdout]  --> src/metrics.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::result;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `from_utf8`
[INFO] [stdout]  --> src/metrics.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::str::{from_utf8, FromStr};
[INFO] [stdout]   |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/metrics.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/metrics.rs:86:16
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let kind = try!(parse_kind(parts[2]));
[INFO] [stdout]    |                ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/metrics.rs:91:21
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let value = try!(parts[1].parse());
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/metrics.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |             try!(parts[3][1..].parse())
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/frontends/udp_server.rs:50:23
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let address = try!(connection_string.parse::<SocketAddr>());
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/frontends/udp_server.rs:51:22
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let socket = try!(UdpSocket::bind(&address));
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mio`
[INFO] [stdout]  --> src/backends/console.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use mio;
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/backends/console.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::result`
[INFO] [stdout]  --> src/backends/console.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::result;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str`
[INFO] [stdout]  --> src/backends/console.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `backends::*`
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use backends::*;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/metrics.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn from(err: num::ParseIntError) -> ParseMessageError {
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/metrics.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn from(err: num::ParseFloatError) -> ParseMessageError {
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kind`
[INFO] [stdout]    --> src/frontends/udp_server.rs:101:32
[INFO] [stdout]     |
[INFO] [stdout] 101 |                     (RX_TOKEN, kind) => {
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_kind`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kind`
[INFO] [stdout]   --> src/backends/console.rs:42:32
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     (RX_TOKEN, kind) => {
[INFO] [stdout]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_kind`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/frontends/udp_server.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let mut poll = Poll::new().unwrap();
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/backends/console.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let mut poll = Poll::new().unwrap();
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `UserConfiguration`
[INFO] [stdout]   --> src/main.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct UserConfiguration {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Bucket`
[INFO] [stdout]   --> src/main.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct Bucket {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `env_check`
[INFO] [stdout]    --> src/main.rs:153:4
[INFO] [stdout]     |
[INFO] [stdout] 153 | fn env_check(env_var: &str, help: &str) {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `upgrade_str_option`
[INFO] [stdout]    --> src/main.rs:160:4
[INFO] [stdout]     |
[INFO] [stdout] 160 | fn upgrade_str_option(o: Option<&str>) -> Option<String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_timer`
[INFO] [stdout]    --> src/metrics.rs:151:4
[INFO] [stdout]     |
[INFO] [stdout] 151 | fn test_timer() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `address`
[INFO] [stdout]   --> src/frontends/udp_server.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     address: SocketAddr,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `RX_TOKEN`
[INFO] [stdout]  --> src/backends/console.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const RX_TOKEN: Token = Token(0);
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ConsoleBackend`
[INFO] [stdout]  --> src/backends/console.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct ConsoleBackend {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/backends/console.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn new() -> ConsoleBackend {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]   --> src/backends/console.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn run(&mut self) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/frontends/udp_server.rs:96:37
[INFO] [stdout]    |
[INFO] [stdout] 96 | ...                   tx.send(msg.to_string());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.28s
[INFO] running `Command { std: "docker" "inspect" "3c678970e0be350559d781c8801c36125cb94e20dd1f3952bfeaa8911ded50d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c678970e0be350559d781c8801c36125cb94e20dd1f3952bfeaa8911ded50d0", kill_on_drop: false }`
[INFO] [stdout] 3c678970e0be350559d781c8801c36125cb94e20dd1f3952bfeaa8911ded50d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2d6ebe030c0594f19e5eaf95802cf2e31d9c742fb2c6a6277132bb3f4bd56aa
[INFO] running `Command { std: "docker" "start" "-a" "b2d6ebe030c0594f19e5eaf95802cf2e31d9c742fb2c6a6277132bb3f4bd56aa", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `sync_token::*`
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sync_token::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TokenSource`
[INFO] [stdout]  --> src/sync_token.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct TokenSource {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Token`
[INFO] [stdout]  --> src/sync_token.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Token {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/sync_token.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new() -> TokenSource {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_token`
[INFO] [stdout]   --> src/sync_token.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn get_token(&self) -> Arc<Token> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustatsd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `trigger`
[INFO] [stdout]   --> src/sync_token.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn trigger(&self) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_triggered`
[INFO] [stdout]   --> src/sync_token.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn is_triggered(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::io::Read;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AppSettings`, `App`, `Arg`
[INFO] [stdout]   --> src/main.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | use clap::{Arg, App, AppSettings};
[INFO] [stdout]    |            ^^^  ^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/metrics.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::result`
[INFO] [stdout]  --> src/metrics.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::result;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `from_utf8`
[INFO] [stdout]  --> src/metrics.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::str::{from_utf8, FromStr};
[INFO] [stdout]   |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/metrics.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/metrics.rs:86:16
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let kind = try!(parse_kind(parts[2]));
[INFO] [stdout]    |                ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/metrics.rs:91:21
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let value = try!(parts[1].parse());
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/metrics.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |             try!(parts[3][1..].parse())
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/frontends/udp_server.rs:50:23
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let address = try!(connection_string.parse::<SocketAddr>());
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/frontends/udp_server.rs:51:22
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let socket = try!(UdpSocket::bind(&address));
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mio`
[INFO] [stdout]  --> src/backends/console.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use mio;
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/backends/console.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::result`
[INFO] [stdout]  --> src/backends/console.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::result;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str`
[INFO] [stdout]  --> src/backends/console.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `backends::*`
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use backends::*;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `actual`
[INFO] [stdout]    --> src/metrics.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |     let actual: StatMsg = "test.key:delete".parse().unwrap();
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_actual`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `actual`
[INFO] [stdout]    --> src/metrics.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 239 |     let actual: StatMsg = "test.key:1|x".parse().unwrap();
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_actual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/metrics.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn from(err: num::ParseIntError) -> ParseMessageError {
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/metrics.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn from(err: num::ParseFloatError) -> ParseMessageError {
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kind`
[INFO] [stdout]    --> src/frontends/udp_server.rs:101:32
[INFO] [stdout]     |
[INFO] [stdout] 101 |                     (RX_TOKEN, kind) => {
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_kind`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kind`
[INFO] [stdout]   --> src/backends/console.rs:42:32
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     (RX_TOKEN, kind) => {
[INFO] [stdout]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_kind`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/frontends/udp_server.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let mut poll = Poll::new().unwrap();
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/backends/console.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let mut poll = Poll::new().unwrap();
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `UserConfiguration`
[INFO] [stdout]   --> src/main.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct UserConfiguration {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Bucket`
[INFO] [stdout]   --> src/main.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct Bucket {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `env_check`
[INFO] [stdout]    --> src/main.rs:153:4
[INFO] [stdout]     |
[INFO] [stdout] 153 | fn env_check(env_var: &str, help: &str) {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `upgrade_str_option`
[INFO] [stdout]    --> src/main.rs:160:4
[INFO] [stdout]     |
[INFO] [stdout] 160 | fn upgrade_str_option(o: Option<&str>) -> Option<String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_timer`
[INFO] [stdout]    --> src/metrics.rs:151:4
[INFO] [stdout]     |
[INFO] [stdout] 151 | fn test_timer() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `address`
[INFO] [stdout]   --> src/frontends/udp_server.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     address: SocketAddr,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `RX_TOKEN`
[INFO] [stdout]  --> src/backends/console.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const RX_TOKEN: Token = Token(0);
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ConsoleBackend`
[INFO] [stdout]  --> src/backends/console.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct ConsoleBackend {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/backends/console.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn new() -> ConsoleBackend {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]   --> src/backends/console.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn run(&mut self) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/frontends/udp_server.rs:96:37
[INFO] [stdout]    |
[INFO] [stdout] 96 | ...                   tx.send(msg.to_string());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 35 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.06s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/rustatsd-cd5f6925288139c8)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rustatsd-82658b04e33a2cc9)
[INFO] running `Command { std: "docker" "inspect" "b2d6ebe030c0594f19e5eaf95802cf2e31d9c742fb2c6a6277132bb3f4bd56aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2d6ebe030c0594f19e5eaf95802cf2e31d9c742fb2c6a6277132bb3f4bd56aa", kill_on_drop: false }`
[INFO] [stdout] b2d6ebe030c0594f19e5eaf95802cf2e31d9c742fb2c6a6277132bb3f4bd56aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 82e6c826dadeb4b4c060e71759cbb52011ee80f1d7c3581156ce409385b6d2fa
[INFO] running `Command { std: "docker" "start" "-a" "82e6c826dadeb4b4c060e71759cbb52011ee80f1d7c3581156ce409385b6d2fa", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `sync_token::*`
[INFO] [stderr]  --> src/lib.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use sync_token::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> src/lib.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/lib.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TokenSource`
[INFO] [stderr]  --> src/sync_token.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct TokenSource {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Token`
[INFO] [stderr]  --> src/sync_token.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct Token {
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/sync_token.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new() -> TokenSource {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_token`
[INFO] [stderr]   --> src/sync_token.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn get_token(&self) -> Arc<Token> {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `trigger`
[INFO] [stderr]   --> src/sync_token.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn trigger(&self) {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_triggered`
[INFO] [stderr]   --> src/sync_token.rs:29:12
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn is_triggered(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rustatsd` (lib) generated 9 warnings
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::io::Read;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `AppSettings`, `App`, `Arg`
[INFO] [stderr]   --> src/main.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 15 | use clap::{Arg, App, AppSettings};
[INFO] [stderr]    |            ^^^  ^^^  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/metrics.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::result`
[INFO] [stderr]  --> src/metrics.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::result;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `from_utf8`
[INFO] [stderr]  --> src/metrics.rs:3:16
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::str::{from_utf8, FromStr};
[INFO] [stderr]   |                ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/metrics.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/metrics.rs:86:16
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let kind = try!(parse_kind(parts[2]));
[INFO] [stderr]    |                ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/metrics.rs:91:21
[INFO] [stderr]    |
[INFO] [stderr] 91 |         let value = try!(parts[1].parse());
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/metrics.rs:93:13
[INFO] [stderr]    |
[INFO] [stderr] 93 |             try!(parts[3][1..].parse())
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/frontends/udp_server.rs:50:23
[INFO] [stderr]    |
[INFO] [stderr] 50 |         let address = try!(connection_string.parse::<SocketAddr>());
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/frontends/udp_server.rs:51:22
[INFO] [stderr]    |
[INFO] [stderr] 51 |         let socket = try!(UdpSocket::bind(&address));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `mio`
[INFO] [stderr]  --> src/backends/console.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use mio;
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/backends/console.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::result`
[INFO] [stderr]  --> src/backends/console.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::result;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]  --> src/backends/console.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::str;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `backends::*`
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | use backends::*;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `actual`
[INFO] [stderr]    --> src/metrics.rs:202:9
[INFO] [stderr]     |
[INFO] [stderr] 202 |     let actual: StatMsg = "test.key:delete".parse().unwrap();
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_actual`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `actual`
[INFO] [stderr]    --> src/metrics.rs:239:9
[INFO] [stderr]     |
[INFO] [stderr] 239 |     let actual: StatMsg = "test.key:1|x".parse().unwrap();
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_actual`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/metrics.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn from(err: num::ParseIntError) -> ParseMessageError {
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/metrics.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn from(err: num::ParseFloatError) -> ParseMessageError {
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `kind`
[INFO] [stderr]    --> src/frontends/udp_server.rs:101:32
[INFO] [stderr]     |
[INFO] [stderr] 101 |                     (RX_TOKEN, kind) => {
[INFO] [stderr]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_kind`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `kind`
[INFO] [stderr]   --> src/backends/console.rs:42:32
[INFO] [stderr]    |
[INFO] [stderr] 42 |                     (RX_TOKEN, kind) => {
[INFO] [stderr]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_kind`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/frontends/udp_server.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |         let mut poll = Poll::new().unwrap();
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/backends/console.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let mut poll = Poll::new().unwrap();
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `UserConfiguration`
[INFO] [stderr]   --> src/main.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | struct UserConfiguration {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Bucket`
[INFO] [stderr]   --> src/main.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | struct Bucket {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `env_check`
[INFO] [stderr]    --> src/main.rs:153:4
[INFO] [stderr]     |
[INFO] [stderr] 153 | fn env_check(env_var: &str, help: &str) {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `upgrade_str_option`
[INFO] [stderr]    --> src/main.rs:160:4
[INFO] [stderr]     |
[INFO] [stderr] 160 | fn upgrade_str_option(o: Option<&str>) -> Option<String> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_timer`
[INFO] [stderr]    --> src/metrics.rs:151:4
[INFO] [stderr]     |
[INFO] [stderr] 151 | fn test_timer() {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `address`
[INFO] [stderr]   --> src/frontends/udp_server.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     address: SocketAddr,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `RX_TOKEN`
[INFO] [stderr]  --> src/backends/console.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | const RX_TOKEN: Token = Token(0);
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ConsoleBackend`
[INFO] [stderr]  --> src/backends/console.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct ConsoleBackend {
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/backends/console.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn new() -> ConsoleBackend {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `run`
[INFO] [stderr]   --> src/backends/console.rs:29:12
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn run(&mut self) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/frontends/udp_server.rs:96:37
[INFO] [stderr]    |
[INFO] [stderr] 96 | ...                   tx.send(msg.to_string());
[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] 
[INFO] [stderr] warning: `rustatsd` (bin "rustatsd" test) generated 35 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rustatsd-cd5f6925288139c8)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_sync_token ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustatsd-82658b04e33a2cc9)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test metrics::test_counter ... ok
[INFO] [stdout] test metrics::test_counter_with_rate ... ok
[INFO] [stdout] test metrics::test_delete ... ok
[INFO] [stdout] test metrics::test_gauge_delta_neg ... ok
[INFO] [stdout] test metrics::test_gauge_absolute ... ok
[INFO] [stdout] test metrics::test_gauge_delta_pos ... ok
[INFO] [stdout] test metrics::test_multi ... ok
[INFO] [stdout] test metrics::test_no_type ... ok
[INFO] [stdout] test metrics::test_no_value ... ok
[INFO] [stdout] test metrics::test_only_name ... ok
[INFO] [stdout] test metrics::test_sets ... ok
[INFO] [stdout] test metrics::test_timer_with_rate ... ok
[INFO] [stdout] test metrics::test_fail_unknown_type - should panic ... ok
[INFO] [stdout] test metrics::test_fail_delete_no_type - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rustatsd
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "82e6c826dadeb4b4c060e71759cbb52011ee80f1d7c3581156ce409385b6d2fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82e6c826dadeb4b4c060e71759cbb52011ee80f1d7c3581156ce409385b6d2fa", kill_on_drop: false }`
[INFO] [stdout] 82e6c826dadeb4b4c060e71759cbb52011ee80f1d7c3581156ce409385b6d2fa