Nov 27 19:14:08.619 INFO checking synthkaf/ping-rs against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 27 19:14:08.621 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-3/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 27 19:14:09.034 INFO [stdout] 0eaa0f3723ae4e081a8fb1062b2bc15fd7e9946ecb46eee756ec9d6823cadfaa
Nov 27 19:14:09.041 INFO running `"docker" "start" "-a" "0eaa0f3723ae4e081a8fb1062b2bc15fd7e9946ecb46eee756ec9d6823cadfaa"`
Nov 27 19:14:11.016 INFO [stderr] usermod: no changes
Nov 27 19:14:11.147 INFO [stderr]    Compiling lazy_static v1.2.0
Nov 27 19:14:11.148 INFO [stderr]    Compiling ucd-util v0.1.2
Nov 27 19:14:11.148 INFO [stderr]    Compiling utf8-ranges v1.0.2
Nov 27 19:14:11.149 INFO [stderr]     Checking pnet_base v0.21.0
Nov 27 19:14:11.165 INFO [stderr]    Compiling pnet v0.21.0
Nov 27 19:14:11.165 INFO [stderr]     Checking ipnetwork v0.12.8
Nov 27 19:14:11.181 INFO [stderr]    Compiling syntex_pos v0.42.0
Nov 27 19:14:11.181 INFO [stderr]     Checking pnet_sys v0.21.0
Nov 27 19:14:12.577 INFO [stderr]    Compiling thread_local v0.3.6
Nov 27 19:14:13.242 INFO [stderr]    Compiling aho-corasick v0.6.9
Nov 27 19:14:13.494 INFO [stderr]     Checking pnet_macros_support v0.21.0
Nov 27 19:14:14.878 INFO [stderr]     Checking pnet_datalink v0.21.0
Nov 27 19:14:15.380 INFO [stderr]    Compiling regex-syntax v0.5.6
Nov 27 19:14:17.540 INFO [stderr]    Compiling syntex_errors v0.42.0
Nov 27 19:14:23.006 INFO [stderr]    Compiling syntex_syntax v0.42.0
Nov 27 19:14:35.871 INFO [stderr]    Compiling regex v0.2.11
Nov 27 19:15:22.961 INFO [stderr]    Compiling syntex v0.42.2
Nov 27 19:15:24.190 INFO [stderr]    Compiling pnet_macros v0.21.0
Nov 27 19:15:27.225 INFO [stderr]    Compiling pnet_packet v0.21.0
Nov 27 19:15:39.628 INFO [stderr]     Checking pnet_transport v0.21.0
Nov 27 19:15:40.224 INFO [stderr]     Checking ping-rs v0.1.0 (/source)
Nov 27 19:15:40.788 INFO [stderr] warning: unused import: `IcmpPacket`
Nov 27 19:15:40.789 INFO [stderr]  --> src/pinger.rs:8:45
Nov 27 19:15:40.789 INFO [stderr]   |
Nov 27 19:15:40.789 INFO [stderr] 8 | use pnet::packet::icmp::{MutableIcmpPacket, IcmpPacket, IcmpCode, IcmpType};
Nov 27 19:15:40.790 INFO [stderr]   |                                             ^^^^^^^^^^
Nov 27 19:15:40.804 INFO [stderr] warning: unused import: `IcmpPacket`
Nov 27 19:15:40.805 INFO [stderr]  --> src/pinger.rs:8:45
Nov 27 19:15:40.805 INFO [stderr]   |
Nov 27 19:15:40.805 INFO [stderr] 8 | use pnet::packet::icmp::{MutableIcmpPacket, IcmpPacket, IcmpCode, IcmpType};
Nov 27 19:15:40.806 INFO [stderr]   |                                             ^^^^^^^^^^
Nov 27 19:15:40.806 INFO [stderr]   |
Nov 27 19:15:40.806 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 19:15:40.807 INFO [stderr] 
Nov 27 19:15:40.807 INFO [stderr] warning: unused import: `cli::Args`
Nov 27 19:15:40.807 INFO [stderr]  --> src/main.rs:7:5
Nov 27 19:15:40.807 INFO [stderr]   |
Nov 27 19:15:40.808 INFO [stderr] 7 | use cli::Args;
Nov 27 19:15:40.808 INFO [stderr]   |     ^^^^^^^^^
Nov 27 19:15:40.808 INFO [stderr] 
Nov 27 19:15:40.817 INFO [stderr]   |
Nov 27 19:15:40.817 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 19:15:40.818 INFO [stderr] 
Nov 27 19:15:40.818 INFO [stderr] warning: unused import: `cli::Args`
Nov 27 19:15:40.818 INFO [stderr]  --> src/main.rs:7:5
Nov 27 19:15:40.818 INFO [stderr]   |
Nov 27 19:15:40.819 INFO [stderr] 7 | use cli::Args;
Nov 27 19:15:40.819 INFO [stderr]   |     ^^^^^^^^^
Nov 27 19:15:40.819 INFO [stderr] 
Nov 27 19:15:40.917 INFO [stderr] warning: unused variable: `iter`
Nov 27 19:15:40.917 INFO [stderr]   --> src/pinger.rs:51:17
Nov 27 19:15:40.917 INFO [stderr]    |
Nov 27 19:15:40.918 INFO [stderr] 51 |         let mut iter =  icmp_packet_iter(&mut rx);
Nov 27 19:15:40.918 INFO [stderr]    |                 ^^^^ help: consider using `_iter` instead
Nov 27 19:15:40.918 INFO [stderr]    |
Nov 27 19:15:40.919 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 19:15:40.919 INFO [stderr] 
Nov 27 19:15:40.924 INFO [stderr] warning: unused variable: `iter`
Nov 27 19:15:40.925 INFO [stderr]   --> src/pinger.rs:51:17
Nov 27 19:15:40.925 INFO [stderr]    |
Nov 27 19:15:40.925 INFO [stderr] 51 |         let mut iter =  icmp_packet_iter(&mut rx);
Nov 27 19:15:40.926 INFO [stderr]    |                 ^^^^ help: consider using `_iter` instead
Nov 27 19:15:40.926 INFO [stderr]    |
Nov 27 19:15:40.926 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 19:15:40.927 INFO [stderr] 
Nov 27 19:15:40.964 INFO [stderr] warning: variable does not need to be mutable
Nov 27 19:15:40.964 INFO [stderr]   --> src/pinger.rs:51:13
Nov 27 19:15:40.964 INFO [stderr]    |
Nov 27 19:15:40.965 INFO [stderr] 51 |         let mut iter =  icmp_packet_iter(&mut rx);
Nov 27 19:15:40.965 INFO [stderr]    |             ----^^^^
Nov 27 19:15:40.965 INFO [stderr]    |             |
Nov 27 19:15:40.966 INFO [stderr]    |             help: remove this `mut`
Nov 27 19:15:40.966 INFO [stderr]    |
Nov 27 19:15:40.966 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 27 19:15:40.967 INFO [stderr] 
Nov 27 19:15:40.967 INFO [stderr] warning: function is never used: `validate_count`
Nov 27 19:15:40.967 INFO [stderr]  --> src/cli.rs:7:1
Nov 27 19:15:40.968 INFO [stderr]   |
Nov 27 19:15:40.968 INFO [stderr] 7 | fn validate_count(s: String) -> Result<(), String> {
Nov 27 19:15:40.968 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:15:40.968 INFO [stderr]   |
Nov 27 19:15:40.969 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 27 19:15:40.969 INFO [stderr] 
Nov 27 19:15:40.969 INFO [stderr] warning: function is never used: `build_arg_parser`
Nov 27 19:15:40.970 INFO [stderr]   --> src/cli.rs:17:1
Nov 27 19:15:40.970 INFO [stderr]    |
Nov 27 19:15:40.970 INFO [stderr] 17 | fn build_arg_parser() -> App<'static, 'static> {
Nov 27 19:15:40.971 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:15:40.971 INFO [stderr] 
Nov 27 19:15:40.971 INFO [stderr] warning: struct is never constructed: `Args`
Nov 27 19:15:40.972 INFO [stderr]   --> src/cli.rs:38:1
Nov 27 19:15:40.972 INFO [stderr]    |
Nov 27 19:15:40.972 INFO [stderr] 38 | pub struct Args {
Nov 27 19:15:40.973 INFO [stderr]    | ^^^^^^^^^^^^^^^
Nov 27 19:15:40.973 INFO [stderr] 
Nov 27 19:15:40.973 INFO [stderr] warning: function is never used: `resolve_host`
Nov 27 19:15:40.973 INFO [stderr]   --> src/cli.rs:44:1
Nov 27 19:15:40.974 INFO [stderr]    |
Nov 27 19:15:40.974 INFO [stderr] 44 | fn resolve_host(host: &str) -> Option<IpAddr> {
Nov 27 19:15:40.974 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:15:40.975 INFO [stderr] 
Nov 27 19:15:40.975 INFO [stderr] warning: method is never used: `from`
Nov 27 19:15:40.975 INFO [stderr]   --> src/cli.rs:57:5
Nov 27 19:15:40.975 INFO [stderr]    |
Nov 27 19:15:40.976 INFO [stderr] 57 |     fn from<'a, I: IntoIterator<Item = String> + 'a>(args: I) -> Result<Args, String> {
Nov 27 19:15:40.976 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:15:40.976 INFO [stderr] 
Nov 27 19:15:40.977 INFO [stderr] warning: method is never used: `from_cmdline`
Nov 27 19:15:40.977 INFO [stderr]   --> src/cli.rs:83:5
Nov 27 19:15:40.977 INFO [stderr]    |
Nov 27 19:15:40.978 INFO [stderr] 83 |     pub fn from_cmdline() -> Result<Args, String> {
Nov 27 19:15:40.978 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:15:40.978 INFO [stderr] 
Nov 27 19:15:40.978 INFO [stderr] warning: field is never used: `packets_received`
Nov 27 19:15:40.979 INFO [stderr]   --> src/pinger.rs:17:5
Nov 27 19:15:40.979 INFO [stderr]    |
Nov 27 19:15:40.979 INFO [stderr] 17 |     packets_received: u32,
Nov 27 19:15:40.980 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:15:40.980 INFO [stderr] 
Nov 27 19:15:40.980 INFO [stderr] warning: field is never used: `rtts`
Nov 27 19:15:40.980 INFO [stderr]   --> src/pinger.rs:18:5
Nov 27 19:15:40.981 INFO [stderr]    |
Nov 27 19:15:40.981 INFO [stderr] 18 |     rtts: Vec<time::Duration>
Nov 27 19:15:40.981 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:15:40.982 INFO [stderr] 
Nov 27 19:15:40.982 INFO [stderr] warning: variable does not need to be mutable
Nov 27 19:15:40.982 INFO [stderr]   --> src/pinger.rs:51:13
Nov 27 19:15:40.983 INFO [stderr]    |
Nov 27 19:15:41.013 INFO [stderr] 51 |         let mut iter =  icmp_packet_iter(&mut rx);
Nov 27 19:15:41.014 INFO [stderr]    |             ----^^^^
Nov 27 19:15:41.014 INFO [stderr]    |             |
Nov 27 19:15:41.015 INFO [stderr]    |             help: remove this `mut`
Nov 27 19:15:41.015 INFO [stderr]    |
Nov 27 19:15:41.015 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 27 19:15:41.016 INFO [stderr] 
Nov 27 19:15:41.016 INFO [stderr] warning: function is never used: `validate_count`
Nov 27 19:15:41.017 INFO [stderr]  --> src/cli.rs:7:1
Nov 27 19:15:41.017 INFO [stderr]   |
Nov 27 19:15:41.017 INFO [stderr] 7 | fn validate_count(s: String) -> Result<(), String> {
Nov 27 19:15:41.017 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:15:41.017 INFO [stderr]   |
Nov 27 19:15:41.017 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 27 19:15:41.017 INFO [stderr] 
Nov 27 19:15:41.017 INFO [stderr] warning: function is never used: `build_arg_parser`
Nov 27 19:15:41.017 INFO [stderr]   --> src/cli.rs:17:1
Nov 27 19:15:41.017 INFO [stderr]    |
Nov 27 19:15:41.017 INFO [stderr] 17 | fn build_arg_parser() -> App<'static, 'static> {
Nov 27 19:15:41.017 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:15:41.017 INFO [stderr] 
Nov 27 19:15:41.017 INFO [stderr] warning: struct is never constructed: `Args`
Nov 27 19:15:41.017 INFO [stderr]   --> src/cli.rs:38:1
Nov 27 19:15:41.017 INFO [stderr]    |
Nov 27 19:15:41.017 INFO [stderr] 38 | pub struct Args {
Nov 27 19:15:41.017 INFO [stderr]    | ^^^^^^^^^^^^^^^
Nov 27 19:15:41.017 INFO [stderr] 
Nov 27 19:15:41.017 INFO [stderr] warning: function is never used: `resolve_host`
Nov 27 19:15:41.017 INFO [stderr]   --> src/cli.rs:44:1
Nov 27 19:15:41.017 INFO [stderr]    |
Nov 27 19:15:41.017 INFO [stderr] 44 | fn resolve_host(host: &str) -> Option<IpAddr> {
Nov 27 19:15:41.017 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:15:41.017 INFO [stderr] 
Nov 27 19:15:41.017 INFO [stderr] warning: method is never used: `from`
Nov 27 19:15:41.017 INFO [stderr]   --> src/cli.rs:57:5
Nov 27 19:15:41.017 INFO [stderr]    |
Nov 27 19:15:41.017 INFO [stderr] 57 |     fn from<'a, I: IntoIterator<Item = String> + 'a>(args: I) -> Result<Args, String> {
Nov 27 19:15:41.017 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:15:41.017 INFO [stderr] 
Nov 27 19:15:41.017 INFO [stderr] warning: method is never used: `from_cmdline`
Nov 27 19:15:41.017 INFO [stderr]   --> src/cli.rs:83:5
Nov 27 19:15:41.017 INFO [stderr]    |
Nov 27 19:15:41.017 INFO [stderr] 83 |     pub fn from_cmdline() -> Result<Args, String> {
Nov 27 19:15:41.017 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:15:41.017 INFO [stderr] 
Nov 27 19:15:41.017 INFO [stderr] warning: field is never used: `packets_received`
Nov 27 19:15:41.017 INFO [stderr]   --> src/pinger.rs:17:5
Nov 27 19:15:41.017 INFO [stderr]    |
Nov 27 19:15:41.017 INFO [stderr] 17 |     packets_received: u32,
Nov 27 19:15:41.017 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:15:41.017 INFO [stderr] 
Nov 27 19:15:41.017 INFO [stderr] warning: field is never used: `rtts`
Nov 27 19:15:41.017 INFO [stderr]   --> src/pinger.rs:18:5
Nov 27 19:15:41.017 INFO [stderr]    |
Nov 27 19:15:41.017 INFO [stderr] 18 |     rtts: Vec<time::Duration>
Nov 27 19:15:41.017 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:15:41.017 INFO [stderr] 
Nov 27 19:15:41.018 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 29s
Nov 27 19:15:41.025 INFO [stderr] su: No module specific data is present
Nov 27 19:15:41.838 INFO running `"docker" "inspect" "0eaa0f3723ae4e081a8fb1062b2bc15fd7e9946ecb46eee756ec9d6823cadfaa"`
Nov 27 19:15:42.125 INFO running `"docker" "rm" "-f" "0eaa0f3723ae4e081a8fb1062b2bc15fd7e9946ecb46eee756ec9d6823cadfaa"`
Nov 27 19:15:42.604 INFO [stdout] 0eaa0f3723ae4e081a8fb1062b2bc15fd7e9946ecb46eee756ec9d6823cadfaa