Nov 29 17:04:06.629 INFO checking synthkaf/ping-rs against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 17:04:06.629 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-3/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +32252761328f59ccfadb1bafb8148c685bc830b3-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 29 17:04:06.997 INFO [stdout] 0df3a9e0847bb5b24bcfad6e27e5b4afdf9fd11338cd2a9fe4813af37c0917bf
Nov 29 17:04:07.002 INFO running `"docker" "start" "-a" "0df3a9e0847bb5b24bcfad6e27e5b4afdf9fd11338cd2a9fe4813af37c0917bf"`
Nov 29 17:04:08.384 INFO [stderr] usermod: no changes
Nov 29 17:04:08.656 INFO [stderr]    Compiling bitflags v0.5.0
Nov 29 17:04:08.656 INFO [stderr]     Checking pnet_base v0.21.0
Nov 29 17:04:08.656 INFO [stderr]     Checking ipnetwork v0.12.8
Nov 29 17:04:08.674 INFO [stderr]    Compiling pnet v0.21.0
Nov 29 17:04:08.676 INFO [stderr]    Compiling syntex_pos v0.42.0
Nov 29 17:04:08.676 INFO [stderr]    Compiling regex-syntax v0.5.6
Nov 29 17:04:08.676 INFO [stderr]     Checking pnet_sys v0.21.0
Nov 29 17:04:09.478 INFO [stderr]     Checking pnet_macros_support v0.21.0
Nov 29 17:04:10.952 INFO [stderr]     Checking pnet_datalink v0.21.0
Nov 29 17:04:12.062 INFO [stderr]    Compiling syntex_errors v0.42.0
Nov 29 17:04:17.218 INFO [stderr]    Compiling syntex_syntax v0.42.0
Nov 29 17:04:28.243 INFO [stderr]    Compiling regex v0.2.11
Nov 29 17:05:17.880 INFO [stderr]    Compiling syntex v0.42.2
Nov 29 17:05:18.980 INFO [stderr]    Compiling pnet_macros v0.21.0
Nov 29 17:05:21.969 INFO [stderr]    Compiling pnet_packet v0.21.0
Nov 29 17:05:34.332 INFO [stderr]     Checking pnet_transport v0.21.0
Nov 29 17:05:34.988 INFO [stderr]     Checking ping-rs v0.1.0 (/source)
Nov 29 17:05:35.580 INFO [stderr] warning: unused import: `IcmpPacket`
Nov 29 17:05:35.580 INFO [stderr]  --> src/pinger.rs:8:45
Nov 29 17:05:35.580 INFO [stderr]   |
Nov 29 17:05:35.580 INFO [stderr] 8 | use pnet::packet::icmp::{MutableIcmpPacket, IcmpPacket, IcmpCode, IcmpType};
Nov 29 17:05:35.580 INFO [stderr]   |                                             ^^^^^^^^^^
Nov 29 17:05:35.580 INFO [stderr]   |
Nov 29 17:05:35.580 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 29 17:05:35.580 INFO [stderr] 
Nov 29 17:05:35.580 INFO [stderr] warning: unused import: `cli::Args`
Nov 29 17:05:35.580 INFO [stderr]  --> src/main.rs:7:5
Nov 29 17:05:35.580 INFO [stderr]   |
Nov 29 17:05:35.580 INFO [stderr] 7 | use cli::Args;
Nov 29 17:05:35.580 INFO [stderr]   |     ^^^^^^^^^
Nov 29 17:05:35.580 INFO [stderr] 
Nov 29 17:05:35.580 INFO [stderr] warning: unused import: `IcmpPacket`
Nov 29 17:05:35.580 INFO [stderr]  --> src/pinger.rs:8:45
Nov 29 17:05:35.581 INFO [stderr]   |
Nov 29 17:05:35.581 INFO [stderr] 8 | use pnet::packet::icmp::{MutableIcmpPacket, IcmpPacket, IcmpCode, IcmpType};
Nov 29 17:05:35.581 INFO [stderr]   |                                             ^^^^^^^^^^
Nov 29 17:05:35.581 INFO [stderr]   |
Nov 29 17:05:35.581 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 29 17:05:35.581 INFO [stderr] 
Nov 29 17:05:35.581 INFO [stderr] warning: unused import: `cli::Args`
Nov 29 17:05:35.581 INFO [stderr]  --> src/main.rs:7:5
Nov 29 17:05:35.581 INFO [stderr]   |
Nov 29 17:05:35.581 INFO [stderr] 7 | use cli::Args;
Nov 29 17:05:35.581 INFO [stderr]   |     ^^^^^^^^^
Nov 29 17:05:35.584 INFO [stderr] 
Nov 29 17:05:35.679 INFO [stderr] warning: unused variable: `iter`
Nov 29 17:05:35.679 INFO [stderr]   --> src/pinger.rs:51:17
Nov 29 17:05:35.679 INFO [stderr]    |
Nov 29 17:05:35.679 INFO [stderr] 51 |         let mut iter =  icmp_packet_iter(&mut rx);
Nov 29 17:05:35.679 INFO [stderr]    |                 ^^^^ help: consider using `_iter` instead
Nov 29 17:05:35.679 INFO [stderr]    |
Nov 29 17:05:35.680 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 17:05:35.680 INFO [stderr] 
Nov 29 17:05:35.709 INFO [stderr] warning: unused variable: `iter`
Nov 29 17:05:35.709 INFO [stderr]   --> src/pinger.rs:51:17
Nov 29 17:05:35.709 INFO [stderr]    |
Nov 29 17:05:35.709 INFO [stderr] 51 |         let mut iter =  icmp_packet_iter(&mut rx);
Nov 29 17:05:35.709 INFO [stderr]    |                 ^^^^ help: consider using `_iter` instead
Nov 29 17:05:35.712 INFO [stderr]    |
Nov 29 17:05:35.712 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 17:05:35.712 INFO [stderr] 
Nov 29 17:05:35.718 INFO [stderr] warning: variable does not need to be mutable
Nov 29 17:05:35.718 INFO [stderr]   --> src/pinger.rs:51:13
Nov 29 17:05:35.718 INFO [stderr]    |
Nov 29 17:05:35.718 INFO [stderr] 51 |         let mut iter =  icmp_packet_iter(&mut rx);
Nov 29 17:05:35.718 INFO [stderr]    |             ----^^^^
Nov 29 17:05:35.718 INFO [stderr]    |             |
Nov 29 17:05:35.718 INFO [stderr]    |             help: remove this `mut`
Nov 29 17:05:35.718 INFO [stderr]    |
Nov 29 17:05:35.718 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 17:05:35.718 INFO [stderr] 
Nov 29 17:05:35.718 INFO [stderr] warning: function is never used: `validate_count`
Nov 29 17:05:35.718 INFO [stderr]  --> src/cli.rs:7:1
Nov 29 17:05:35.718 INFO [stderr]   |
Nov 29 17:05:35.718 INFO [stderr] 7 | fn validate_count(s: String) -> Result<(), String> {
Nov 29 17:05:35.718 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:05:35.718 INFO [stderr]   |
Nov 29 17:05:35.718 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 29 17:05:35.718 INFO [stderr] 
Nov 29 17:05:35.718 INFO [stderr] warning: function is never used: `build_arg_parser`
Nov 29 17:05:35.718 INFO [stderr]   --> src/cli.rs:17:1
Nov 29 17:05:35.718 INFO [stderr]    |
Nov 29 17:05:35.718 INFO [stderr] 17 | fn build_arg_parser() -> App<'static, 'static> {
Nov 29 17:05:35.718 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:05:35.718 INFO [stderr] 
Nov 29 17:05:35.718 INFO [stderr] warning: struct is never constructed: `Args`
Nov 29 17:05:35.718 INFO [stderr]   --> src/cli.rs:38:1
Nov 29 17:05:35.718 INFO [stderr]    |
Nov 29 17:05:35.718 INFO [stderr] 38 | pub struct Args {
Nov 29 17:05:35.718 INFO [stderr]    | ^^^^^^^^^^^^^^^
Nov 29 17:05:35.718 INFO [stderr] 
Nov 29 17:05:35.718 INFO [stderr] warning: function is never used: `resolve_host`
Nov 29 17:05:35.718 INFO [stderr]   --> src/cli.rs:44:1
Nov 29 17:05:35.718 INFO [stderr]    |
Nov 29 17:05:35.718 INFO [stderr] 44 | fn resolve_host(host: &str) -> Option<IpAddr> {
Nov 29 17:05:35.718 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:05:35.718 INFO [stderr] 
Nov 29 17:05:35.719 INFO [stderr] warning: method is never used: `from`
Nov 29 17:05:35.719 INFO [stderr]   --> src/cli.rs:57:5
Nov 29 17:05:35.719 INFO [stderr]    |
Nov 29 17:05:35.719 INFO [stderr] 57 |     fn from<'a, I: IntoIterator<Item = String> + 'a>(args: I) -> Result<Args, String> {
Nov 29 17:05:35.719 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:05:35.719 INFO [stderr] 
Nov 29 17:05:35.719 INFO [stderr] warning: method is never used: `from_cmdline`
Nov 29 17:05:35.719 INFO [stderr]   --> src/cli.rs:83:5
Nov 29 17:05:35.719 INFO [stderr]    |
Nov 29 17:05:35.719 INFO [stderr] 83 |     pub fn from_cmdline() -> Result<Args, String> {
Nov 29 17:05:35.719 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:05:35.719 INFO [stderr] 
Nov 29 17:05:35.719 INFO [stderr] warning: field is never used: `packets_received`
Nov 29 17:05:35.719 INFO [stderr]   --> src/pinger.rs:17:5
Nov 29 17:05:35.719 INFO [stderr]    |
Nov 29 17:05:35.719 INFO [stderr] 17 |     packets_received: u32,
Nov 29 17:05:35.719 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:05:35.719 INFO [stderr] 
Nov 29 17:05:35.719 INFO [stderr] warning: field is never used: `rtts`
Nov 29 17:05:35.719 INFO [stderr]   --> src/pinger.rs:18:5
Nov 29 17:05:35.719 INFO [stderr]    |
Nov 29 17:05:35.719 INFO [stderr] 18 |     rtts: Vec<time::Duration>
Nov 29 17:05:35.719 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:05:35.728 INFO [stderr] 
Nov 29 17:05:35.776 INFO [stderr] warning: variable does not need to be mutable
Nov 29 17:05:35.776 INFO [stderr]   --> src/pinger.rs:51:13
Nov 29 17:05:35.776 INFO [stderr]    |
Nov 29 17:05:35.776 INFO [stderr] 51 |         let mut iter =  icmp_packet_iter(&mut rx);
Nov 29 17:05:35.776 INFO [stderr]    |             ----^^^^
Nov 29 17:05:35.776 INFO [stderr]    |             |
Nov 29 17:05:35.776 INFO [stderr]    |             help: remove this `mut`
Nov 29 17:05:35.776 INFO [stderr]    |
Nov 29 17:05:35.776 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 17:05:35.776 INFO [stderr] 
Nov 29 17:05:35.776 INFO [stderr] warning: function is never used: `validate_count`
Nov 29 17:05:35.776 INFO [stderr]  --> src/cli.rs:7:1
Nov 29 17:05:35.776 INFO [stderr]   |
Nov 29 17:05:35.777 INFO [stderr] 7 | fn validate_count(s: String) -> Result<(), String> {
Nov 29 17:05:35.777 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:05:35.777 INFO [stderr]   |
Nov 29 17:05:35.777 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 29 17:05:35.777 INFO [stderr] 
Nov 29 17:05:35.777 INFO [stderr] warning: function is never used: `build_arg_parser`
Nov 29 17:05:35.777 INFO [stderr]   --> src/cli.rs:17:1
Nov 29 17:05:35.777 INFO [stderr]    |
Nov 29 17:05:35.777 INFO [stderr] 17 | fn build_arg_parser() -> App<'static, 'static> {
Nov 29 17:05:35.777 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:05:35.777 INFO [stderr] 
Nov 29 17:05:35.777 INFO [stderr] warning: struct is never constructed: `Args`
Nov 29 17:05:35.777 INFO [stderr]   --> src/cli.rs:38:1
Nov 29 17:05:35.777 INFO [stderr]    |
Nov 29 17:05:35.777 INFO [stderr] 38 | pub struct Args {
Nov 29 17:05:35.777 INFO [stderr]    | ^^^^^^^^^^^^^^^
Nov 29 17:05:35.777 INFO [stderr] 
Nov 29 17:05:35.777 INFO [stderr] warning: function is never used: `resolve_host`
Nov 29 17:05:35.777 INFO [stderr]   --> src/cli.rs:44:1
Nov 29 17:05:35.777 INFO [stderr]    |
Nov 29 17:05:35.777 INFO [stderr] 44 | fn resolve_host(host: &str) -> Option<IpAddr> {
Nov 29 17:05:35.777 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:05:35.777 INFO [stderr] 
Nov 29 17:05:35.777 INFO [stderr] warning: method is never used: `from`
Nov 29 17:05:35.777 INFO [stderr]   --> src/cli.rs:57:5
Nov 29 17:05:35.777 INFO [stderr]    |
Nov 29 17:05:35.777 INFO [stderr] 57 |     fn from<'a, I: IntoIterator<Item = String> + 'a>(args: I) -> Result<Args, String> {
Nov 29 17:05:35.777 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:05:35.777 INFO [stderr] 
Nov 29 17:05:35.777 INFO [stderr] warning: method is never used: `from_cmdline`
Nov 29 17:05:35.777 INFO [stderr]   --> src/cli.rs:83:5
Nov 29 17:05:35.777 INFO [stderr]    |
Nov 29 17:05:35.777 INFO [stderr] 83 |     pub fn from_cmdline() -> Result<Args, String> {
Nov 29 17:05:35.777 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:05:35.777 INFO [stderr] 
Nov 29 17:05:35.777 INFO [stderr] warning: field is never used: `packets_received`
Nov 29 17:05:35.777 INFO [stderr]   --> src/pinger.rs:17:5
Nov 29 17:05:35.777 INFO [stderr]    |
Nov 29 17:05:35.777 INFO [stderr] 17 |     packets_received: u32,
Nov 29 17:05:35.777 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:05:35.777 INFO [stderr] 
Nov 29 17:05:35.777 INFO [stderr] warning: field is never used: `rtts`
Nov 29 17:05:35.777 INFO [stderr]   --> src/pinger.rs:18:5
Nov 29 17:05:35.777 INFO [stderr]    |
Nov 29 17:05:35.777 INFO [stderr] 18 |     rtts: Vec<time::Duration>
Nov 29 17:05:35.777 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:05:35.777 INFO [stderr] 
Nov 29 17:05:35.810 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 27s
Nov 29 17:05:35.816 INFO [stderr] su: No module specific data is present
Nov 29 17:05:36.848 INFO running `"docker" "inspect" "0df3a9e0847bb5b24bcfad6e27e5b4afdf9fd11338cd2a9fe4813af37c0917bf"`
Nov 29 17:05:37.074 INFO running `"docker" "rm" "-f" "0df3a9e0847bb5b24bcfad6e27e5b4afdf9fd11338cd2a9fe4813af37c0917bf"`
Nov 29 17:05:37.391 INFO [stdout] 0df3a9e0847bb5b24bcfad6e27e5b4afdf9fd11338cd2a9fe4813af37c0917bf