[INFO] updating cached repository Jiyuu/udpPing
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Jiyuu/udpPing
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Jiyuu/udpPing" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/Jiyuu/udpPing"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/Jiyuu/udpPing'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Jiyuu/udpPing" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/Jiyuu/udpPing"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/Jiyuu/udpPing'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f45d4a7acdc328e7ffe585c661c69452f4c26c5a
[INFO] sha for GitHub repo Jiyuu/udpPing: f45d4a7acdc328e7ffe585c661c69452f4c26c5a
[INFO] validating manifest of Jiyuu/udpPing on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Jiyuu/udpPing on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Jiyuu/udpPing
[INFO] finished frobbing Jiyuu/udpPing
[INFO] frobbed toml for Jiyuu/udpPing written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/Jiyuu/udpPing/Cargo.toml
[INFO] started frobbing Jiyuu/udpPing
[INFO] finished frobbing Jiyuu/udpPing
[INFO] frobbed toml for Jiyuu/udpPing written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/Jiyuu/udpPing/Cargo.toml
[INFO] crate Jiyuu/udpPing already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Jiyuu/udpPing against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-7/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/Jiyuu/udpPing:/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=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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a57f37ae4dfbae15420c4189dd7b49dcde089f956b3ad7cd6edc8eaad0d30439
[INFO] running `"docker" "start" "-a" "a57f37ae4dfbae15420c4189dd7b49dcde089f956b3ad7cd6edc8eaad0d30439"`
[INFO] [stderr]     Checking udpPing v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `ArgGroup`, `SubCommand`
[INFO] [stderr]  --> src/main.rs:8:22
[INFO] [stderr]   |
[INFO] [stderr] 8 | use clap::{Arg, App, SubCommand, ArgGroup};
[INFO] [stderr]   |                      ^^^^^^^^^^  ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Duration`
[INFO] [stderr]   --> src/main.rs:12:25
[INFO] [stderr]    |
[INFO] [stderr] 12 | use time::{PreciseTime, Duration};
[INFO] [stderr]    |                         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:42:8
[INFO] [stderr]    |
[INFO] [stderr] 42 |     if (!daemon_mode) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]   --> src/main.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     while true {
[INFO] [stderr]    |     ^^^^^^^^^^ help: use `loop`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(while_true)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:89:12
[INFO] [stderr]    |
[INFO] [stderr] 89 |         if (received_data != data.len())
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ArgGroup`, `SubCommand`
[INFO] [stderr]  --> src/main.rs:8:22
[INFO] [stderr]   |
[INFO] [stderr] 8 | use clap::{Arg, App, SubCommand, ArgGroup};
[INFO] [stderr]   |                      ^^^^^^^^^^  ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Duration`
[INFO] [stderr]   --> src/main.rs:12:25
[INFO] [stderr]    |
[INFO] [stderr] 12 | use time::{PreciseTime, Duration};
[INFO] [stderr]    |                         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:42:8
[INFO] [stderr]    |
[INFO] [stderr] 42 |     if (!daemon_mode) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]   --> src/main.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     while true {
[INFO] [stderr]    |     ^^^^^^^^^^ help: use `loop`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(while_true)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:89:12
[INFO] [stderr]    |
[INFO] [stderr] 89 |         if (received_data != data.len())
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: crate `udpPing` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `udp_ping`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 |             socket.set_nonblocking(false);
[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: crate `udpPing` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `udp_ping`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 |             socket.set_nonblocking(false);
[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 1.15s
[INFO] running `"docker" "inspect" "a57f37ae4dfbae15420c4189dd7b49dcde089f956b3ad7cd6edc8eaad0d30439"`
[INFO] running `"docker" "rm" "-f" "a57f37ae4dfbae15420c4189dd7b49dcde089f956b3ad7cd6edc8eaad0d30439"`
[INFO] [stdout] a57f37ae4dfbae15420c4189dd7b49dcde089f956b3ad7cd6edc8eaad0d30439