[INFO] updating cached repository CryptArchy/RuStatsD [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/CryptArchy/RuStatsD [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/CryptArchy/RuStatsD" "work/ex/beta-1.38-1/sources/1.37.0/gh/CryptArchy/RuStatsD"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/CryptArchy/RuStatsD'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/CryptArchy/RuStatsD" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CryptArchy/RuStatsD"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CryptArchy/RuStatsD'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 46c08407b102d32b7ff7a764eb7ea182f2ccda78 [INFO] sha for GitHub repo CryptArchy/RuStatsD: 46c08407b102d32b7ff7a764eb7ea182f2ccda78 [INFO] validating manifest of CryptArchy/RuStatsD on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of CryptArchy/RuStatsD on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing CryptArchy/RuStatsD [INFO] finished frobbing CryptArchy/RuStatsD [INFO] frobbed toml for CryptArchy/RuStatsD written to work/ex/beta-1.38-1/sources/1.37.0/gh/CryptArchy/RuStatsD/Cargo.toml [INFO] started frobbing CryptArchy/RuStatsD [INFO] finished frobbing CryptArchy/RuStatsD [INFO] frobbed toml for CryptArchy/RuStatsD written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CryptArchy/RuStatsD/Cargo.toml [INFO] crate CryptArchy/RuStatsD already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] testing CryptArchy/RuStatsD against beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CryptArchy/RuStatsD:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"` [INFO] [stdout] bd485cd65b9c6d4b93452f6180acee4e2203dbfb3e16d7bad5e68f017808c3be [INFO] running `"docker" "start" "-a" "bd485cd65b9c6d4b93452f6180acee4e2203dbfb3e16d7bad5e68f017808c3be"` [INFO] [stderr] Compiling traitobject v0.0.3 [INFO] [stderr] Compiling serde v0.7.15 [INFO] [stderr] Compiling quick-error v1.1.0 [INFO] [stderr] Compiling strsim v0.5.1 [INFO] [stderr] Compiling unicode-width v0.1.3 [INFO] [stderr] Compiling bytes v0.3.0 [INFO] [stderr] Compiling version v2.0.1 [INFO] [stderr] Compiling term_size v0.2.1 [INFO] [stderr] Compiling net2 v0.2.26 [INFO] [stderr] Compiling nix v0.6.0 [INFO] [stderr] Compiling unsafe-any v0.4.1 [INFO] [stderr] Compiling humantime v0.1.3 [INFO] [stderr] Compiling num v0.1.35 [INFO] [stderr] Compiling clap v2.13.0 [INFO] [stderr] Compiling typemap v0.3.3 [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 toml v0.1.30 [INFO] [stderr] Compiling mio v0.6.0 [INFO] [stderr] Compiling log4rs v0.4.8 [INFO] [stderr] Compiling rustatsd v0.1.0 (/opt/crater/workdir) [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:4:1 [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:8:1 [INFO] [stderr] | [INFO] [stderr] 8 | pub struct Token { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/sync_token.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | pub fn new() -> TokenSource { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_token` [INFO] [stderr] --> src/sync_token.rs:19:5 [INFO] [stderr] | [INFO] [stderr] 19 | pub fn get_token(&self) -> Arc { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `trigger` [INFO] [stderr] --> src/sync_token.rs:23:5 [INFO] [stderr] | [INFO] [stderr] 23 | pub fn trigger(&self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_triggered` [INFO] [stderr] --> src/sync_token.rs:29:5 [INFO] [stderr] | [INFO] [stderr] 29 | pub fn is_triggered(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [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: 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: `err` [INFO] [stderr] --> src/metrics.rs:21:13 [INFO] [stderr] | [INFO] [stderr] 21 | fn from(err: num::ParseIntError) -> ParseMessageError { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_err` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [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: consider prefixing 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: consider prefixing 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: consider prefixing 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: function is never used: `test_timer` [INFO] [stderr] --> src/metrics.rs:151:1 [INFO] [stderr] | [INFO] [stderr] 151 | fn test_timer() { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `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 item 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:9:1 [INFO] [stderr] | [INFO] [stderr] 9 | pub struct ConsoleBackend { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/backends/console.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | pub fn new() -> ConsoleBackend { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `run` [INFO] [stderr] --> src/backends/console.rs:29:5 [INFO] [stderr] | [INFO] [stderr] 29 | pub fn run(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `UserConfiguration` [INFO] [stderr] --> src/main.rs:23:1 [INFO] [stderr] | [INFO] [stderr] 23 | struct UserConfiguration { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Bucket` [INFO] [stderr] --> src/main.rs:31:1 [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:153:1 [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:160:1 [INFO] [stderr] | [INFO] [stderr] 160 | fn upgrade_str_option(o: Option<&str>) -> Option { [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] Finished dev [unoptimized + debuginfo] target(s) in 41.23s [INFO] running `"docker" "inspect" "bd485cd65b9c6d4b93452f6180acee4e2203dbfb3e16d7bad5e68f017808c3be"` [INFO] running `"docker" "rm" "-f" "bd485cd65b9c6d4b93452f6180acee4e2203dbfb3e16d7bad5e68f017808c3be"` [INFO] [stdout] bd485cd65b9c6d4b93452f6180acee4e2203dbfb3e16d7bad5e68f017808c3be [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CryptArchy/RuStatsD:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"` [INFO] [stdout] c5bda515cc2b688c2ea7aa5b36e533c9d87f5c9f26de8fc5ca7c68922416908c [INFO] running `"docker" "start" "-a" "c5bda515cc2b688c2ea7aa5b36e533c9d87f5c9f26de8fc5ca7c68922416908c"` [INFO] [stderr] Compiling rustatsd v0.1.0 (/opt/crater/workdir) [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: 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: consider prefixing 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: consider prefixing 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: consider prefixing 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: consider prefixing 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: consider prefixing 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: consider prefixing 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: function is never used: `test_timer` [INFO] [stderr] --> src/metrics.rs:151:1 [INFO] [stderr] | [INFO] [stderr] 151 | fn test_timer() { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `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 item 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:9:1 [INFO] [stderr] | [INFO] [stderr] 9 | pub struct ConsoleBackend { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/backends/console.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | pub fn new() -> ConsoleBackend { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `run` [INFO] [stderr] --> src/backends/console.rs:29:5 [INFO] [stderr] | [INFO] [stderr] 29 | pub fn run(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `UserConfiguration` [INFO] [stderr] --> src/main.rs:23:1 [INFO] [stderr] | [INFO] [stderr] 23 | struct UserConfiguration { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Bucket` [INFO] [stderr] --> src/main.rs:31:1 [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:153:1 [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:160:1 [INFO] [stderr] | [INFO] [stderr] 160 | fn upgrade_str_option(o: Option<&str>) -> Option { [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] Finished dev [unoptimized + debuginfo] target(s) in 1.67s [INFO] running `"docker" "inspect" "c5bda515cc2b688c2ea7aa5b36e533c9d87f5c9f26de8fc5ca7c68922416908c"` [INFO] running `"docker" "rm" "-f" "c5bda515cc2b688c2ea7aa5b36e533c9d87f5c9f26de8fc5ca7c68922416908c"` [INFO] [stdout] c5bda515cc2b688c2ea7aa5b36e533c9d87f5c9f26de8fc5ca7c68922416908c [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CryptArchy/RuStatsD:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"` [INFO] [stdout] 4188f72dff472ab84b0b044d704f2f3364d13f6836c2459f19a69811f71dcd7e [INFO] running `"docker" "start" "-a" "4188f72dff472ab84b0b044d704f2f3364d13f6836c2459f19a69811f71dcd7e"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running /opt/crater/target/debug/deps/rustatsd-d1011ebcf715625e [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] Done 9 [INFO] [stdout] Done 8 [INFO] [stdout] Done 3 [INFO] [stdout] Done 2 [INFO] [stdout] Done 1 [INFO] [stdout] Done 0 [INFO] [stdout] Done 5 [INFO] [stdout] Done 6 [INFO] [stdout] Done 7 [INFO] [stdout] Done 4 [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 [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/rustatsd-a8a269d27cc1b53a [INFO] [stdout] [INFO] [stdout] running 14 tests [INFO] [stdout] test metrics::test_gauge_absolute ... ok [INFO] [stdout] test metrics::test_delete ... ok [INFO] [stdout] test metrics::test_gauge_delta_neg ... ok [INFO] [stdout] test metrics::test_multi ... ok [INFO] [stdout] test metrics::test_no_type ... ok [INFO] [stdout] test metrics::test_gauge_delta_pos ... ok [INFO] [stdout] test metrics::test_sets ... ok [INFO] [stdout] test metrics::test_counter_with_rate ... ok [INFO] [stdout] test metrics::test_counter ... ok [INFO] [stdout] test metrics::test_no_value ... ok [INFO] [stdout] test metrics::test_timer_with_rate ... ok [INFO] [stdout] test metrics::test_only_name ... ok [INFO] [stdout] test metrics::test_fail_unknown_type ... ok [INFO] [stdout] test metrics::test_fail_delete_no_type ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [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 [INFO] [stdout] [INFO] running `"docker" "inspect" "4188f72dff472ab84b0b044d704f2f3364d13f6836c2459f19a69811f71dcd7e"` [INFO] running `"docker" "rm" "-f" "4188f72dff472ab84b0b044d704f2f3364d13f6836c2459f19a69811f71dcd7e"` [INFO] [stdout] 4188f72dff472ab84b0b044d704f2f3364d13f6836c2459f19a69811f71dcd7e