Dec 19 09:08:58.653 INFO checking sebglazebrook/ping-rs against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 09:08:58.653 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/sebglazebrook/ping-rs:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 09:08:59.154 INFO [stdout] da4fccf04760c1da76b374b4c9d00b8f881abe572d2e0b4493d358cec2979a9e
Dec 19 09:08:59.162 INFO running `"docker" "start" "-a" "da4fccf04760c1da76b374b4c9d00b8f881abe572d2e0b4493d358cec2979a9e"`
Dec 19 09:09:00.599 INFO [stderr]    Compiling libc v0.2.36
Dec 19 09:09:00.604 INFO [stderr]    Compiling regex-syntax v0.4.2
Dec 19 09:09:00.604 INFO [stderr]    Compiling pnet v0.20.0
Dec 19 09:09:00.610 INFO [stderr]     Checking pnet_macros_support v0.20.0
Dec 19 09:09:00.614 INFO [stderr]     Checking pnet_sys v0.20.0
Dec 19 09:09:00.614 INFO [stderr]    Compiling thread_local v0.3.5
Dec 19 09:09:01.128 INFO [stderr]     Checking pnet_datalink v0.20.0
Dec 19 09:09:03.088 INFO [stderr]    Compiling memchr v2.0.1
Dec 19 09:09:03.088 INFO [stderr]    Compiling syntex_errors v0.42.0
Dec 19 09:09:03.518 INFO [stderr]    Compiling aho-corasick v0.6.4
Dec 19 09:09:08.597 INFO [stderr]    Compiling regex v0.2.6
Dec 19 09:09:08.726 INFO [stderr]    Compiling syntex_syntax v0.42.0
Dec 19 09:09:59.234 INFO [stderr]    Compiling syntex v0.42.2
Dec 19 09:10:00.284 INFO [stderr]    Compiling pnet_macros v0.20.0
Dec 19 09:10:02.773 INFO [stderr]    Compiling pnet_packet v0.20.0
Dec 19 09:10:15.149 INFO [stderr]     Checking pnet_transport v0.20.0
Dec 19 09:10:15.740 INFO [stderr]     Checking ping-rs v0.1.0 (/opt/crater/workdir)
Dec 19 09:10:16.216 INFO [stderr] warning: variable does not need to be mutable
Dec 19 09:10:16.216 INFO [stderr]   --> src/ping/network_layer.rs:15:22
Dec 19 09:10:16.216 INFO [stderr]    |
Dec 19 09:10:16.216 INFO [stderr] 15 |         let (mut tx, mut rx) = match datalink::channel(&interface, datalink::Config::default()) {
Dec 19 09:10:16.216 INFO [stderr]    |                      ----^^
Dec 19 09:10:16.216 INFO [stderr]    |                      |
Dec 19 09:10:16.217 INFO [stderr]    |                      help: remove this `mut`
Dec 19 09:10:16.217 INFO [stderr]    |
Dec 19 09:10:16.217 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 09:10:16.217 INFO [stderr] 
Dec 19 09:10:16.217 INFO [stderr] warning: variable does not need to be mutable
Dec 19 09:10:16.217 INFO [stderr]   --> src/ping/network_layer.rs:15:14
Dec 19 09:10:16.217 INFO [stderr]    |
Dec 19 09:10:16.217 INFO [stderr] 15 |         let (mut tx, mut rx) = match datalink::channel(&interface, datalink::Config::default()) {
Dec 19 09:10:16.217 INFO [stderr]    |              ----^^
Dec 19 09:10:16.217 INFO [stderr]    |              |
Dec 19 09:10:16.217 INFO [stderr]    |              help: remove this `mut`
Dec 19 09:10:16.217 INFO [stderr] 
Dec 19 09:10:16.228 INFO [stderr] warning: field is never used: `interface`
Dec 19 09:10:16.228 INFO [stderr]  --> src/ping/network_layer.rs:6:5
Dec 19 09:10:16.228 INFO [stderr]   |
Dec 19 09:10:16.228 INFO [stderr] 6 |     interface: datalink::NetworkInterface,
Dec 19 09:10:16.228 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:10:16.228 INFO [stderr]   |
Dec 19 09:10:16.228 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 09:10:16.228 INFO [stderr] 
Dec 19 09:10:16.229 INFO [stderr] warning: field is never used: `receiver`
Dec 19 09:10:16.229 INFO [stderr]  --> src/ping/network_layer.rs:8:5
Dec 19 09:10:16.229 INFO [stderr]   |
Dec 19 09:10:16.229 INFO [stderr] 8 |     receiver: Box<datalink::DataLinkReceiver>,
Dec 19 09:10:16.229 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:10:16.229 INFO [stderr] 
Dec 19 09:10:16.230 INFO [stderr] warning: literal out of range for u8
Dec 19 09:10:16.230 INFO [stderr]   --> src/ping/ip_header.rs:31:22
Dec 19 09:10:16.230 INFO [stderr]    |
Dec 19 09:10:16.231 INFO [stderr] 31 |             version: 0x0800, // TODO correct value ??
Dec 19 09:10:16.231 INFO [stderr]    |                      ^^^^^^
Dec 19 09:10:16.231 INFO [stderr]    |
Dec 19 09:10:16.231 INFO [stderr]    = note: #[warn(overflowing_literals)] on by default
Dec 19 09:10:16.232 INFO [stderr]    = note: the literal `0x0800` (decimal `2048`) does not fit into an `u8` and will become `0u8`
Dec 19 09:10:16.232 INFO [stderr]    = help: consider using `u16` instead
Dec 19 09:10:16.232 INFO [stderr] 
Dec 19 09:10:16.232 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 09:10:16.233 INFO [stderr]   --> src/ping/ip_header.rs:70:9
Dec 19 09:10:16.233 INFO [stderr]    |
Dec 19 09:10:16.233 INFO [stderr] 70 |         header_checksum.write_u16::<BigEndian>(self.header_checksum);
Dec 19 09:10:16.233 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:10:16.233 INFO [stderr]    |
Dec 19 09:10:16.234 INFO [stderr] warning: variable does not need to be mutable
Dec 19 09:10:16.234 INFO [stderr]   --> src/ping/network_layer.rs:15:22
Dec 19 09:10:16.234 INFO [stderr]    |
Dec 19 09:10:16.234 INFO [stderr] 15 |         let (mut tx, mut rx) = match datalink::channel(&interface, datalink::Config::default()) {
Dec 19 09:10:16.234 INFO [stderr]    |                      ----^^
Dec 19 09:10:16.235 INFO [stderr]    |                      |
Dec 19 09:10:16.235 INFO [stderr]    |                      help: remove this `mut`
Dec 19 09:10:16.235 INFO [stderr]    |
Dec 19 09:10:16.235 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 09:10:16.235 INFO [stderr] 
Dec 19 09:10:16.235 INFO [stderr] warning: variable does not need to be mutable
Dec 19 09:10:16.236 INFO [stderr]   --> src/ping/network_layer.rs:15:14
Dec 19 09:10:16.236 INFO [stderr]    |
Dec 19 09:10:16.236 INFO [stderr] 15 |         let (mut tx, mut rx) = match datalink::channel(&interface, datalink::Config::default()) {
Dec 19 09:10:16.236 INFO [stderr]    |              ----^^
Dec 19 09:10:16.237 INFO [stderr]    |              |
Dec 19 09:10:16.237 INFO [stderr]    |              help: remove this `mut`
Dec 19 09:10:16.237 INFO [stderr] 
Dec 19 09:10:16.237 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 09:10:16.237 INFO [stderr] warning: field is never used: `interface`
Dec 19 09:10:16.238 INFO [stderr]  --> src/ping/network_layer.rs:6:5
Dec 19 09:10:16.238 INFO [stderr]   |
Dec 19 09:10:16.238 INFO [stderr] 6 |     interface: datalink::NetworkInterface,
Dec 19 09:10:16.238 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:10:16.238 INFO [stderr]   |
Dec 19 09:10:16.239 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 09:10:16.239 INFO [stderr] 
Dec 19 09:10:16.239 INFO [stderr] warning: field is never used: `receiver`
Dec 19 09:10:16.239 INFO [stderr]  --> src/ping/network_layer.rs:8:5
Dec 19 09:10:16.239 INFO [stderr]   |
Dec 19 09:10:16.240 INFO [stderr] 8 |     receiver: Box<datalink::DataLinkReceiver>,
Dec 19 09:10:16.240 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:10:16.240 INFO [stderr] 
Dec 19 09:10:16.240 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 09:10:16.240 INFO [stderr] 
Dec 19 09:10:16.261 INFO [stderr] warning: literal out of range for u8
Dec 19 09:10:16.261 INFO [stderr]   --> src/ping/ip_header.rs:31:22
Dec 19 09:10:16.261 INFO [stderr]    |
Dec 19 09:10:16.261 INFO [stderr] 31 |             version: 0x0800, // TODO correct value ??
Dec 19 09:10:16.261 INFO [stderr]    |                      ^^^^^^
Dec 19 09:10:16.261 INFO [stderr]    |
Dec 19 09:10:16.261 INFO [stderr]    = note: #[warn(overflowing_literals)] on by default
Dec 19 09:10:16.261 INFO [stderr]    = note: the literal `0x0800` (decimal `2048`) does not fit into an `u8` and will become `0u8`
Dec 19 09:10:16.261 INFO [stderr]    = help: consider using `u16` instead
Dec 19 09:10:16.261 INFO [stderr] 
Dec 19 09:10:16.261 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 09:10:16.261 INFO [stderr]   --> src/ping/ip_header.rs:70:9
Dec 19 09:10:16.261 INFO [stderr]    |
Dec 19 09:10:16.261 INFO [stderr] 70 |         header_checksum.write_u16::<BigEndian>(self.header_checksum);
Dec 19 09:10:16.261 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:10:16.261 INFO [stderr]    |
Dec 19 09:10:16.261 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 09:10:16.261 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 09:10:16.261 INFO [stderr] 
Dec 19 09:10:16.726 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 16s
Dec 19 09:10:18.618 INFO running `"docker" "inspect" "da4fccf04760c1da76b374b4c9d00b8f881abe572d2e0b4493d358cec2979a9e"`
Dec 19 09:10:18.887 INFO running `"docker" "rm" "-f" "da4fccf04760c1da76b374b4c9d00b8f881abe572d2e0b4493d358cec2979a9e"`
Dec 19 09:10:19.216 INFO [stdout] da4fccf04760c1da76b374b4c9d00b8f881abe572d2e0b4493d358cec2979a9e