Dec 18 09:11:55.742 INFO checking wping-0.3.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 09:11:55.743 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/wping/0.3.0:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 09:11:56.144 INFO [stdout] 66035410aaa50a09690b215208b046474df642dbfe169469fc566a15cc310715
Dec 18 09:11:56.154 INFO running `"docker" "start" "-a" "66035410aaa50a09690b215208b046474df642dbfe169469fc566a15cc310715"`
Dec 18 09:11:57.760 INFO [stderr]     Checking unicode-xid v0.0.3
Dec 18 09:11:57.764 INFO [stderr]     Checking pnet_macros_support v0.1.1
Dec 18 09:11:57.767 INFO [stderr]     Checking syntex_pos v0.42.0
Dec 18 09:11:57.777 INFO [stderr]    Compiling syntex_errors v0.42.0
Dec 18 09:11:57.777 INFO [stderr]     Checking resolve v0.1.2
Dec 18 09:11:57.779 INFO [stderr]     Checking chrono v0.3.0
Dec 18 09:12:04.272 INFO [stderr]     Checking syntex_syntax v0.42.0
Dec 18 09:12:27.142 INFO [stderr]     Checking syntex v0.42.2
Dec 18 09:12:27.848 INFO [stderr]     Checking pnet_macros v0.15.0
Dec 18 09:12:54.701 INFO [stderr]    Compiling pnet v0.16.0
Dec 18 09:13:02.989 INFO [stderr]     Checking wping v0.3.0 (/opt/crater/workdir)
Dec 18 09:13:03.638 INFO [stderr] warning: variable does not need to be mutable
Dec 18 09:13:03.638 INFO [stderr]    --> src/main.rs:115:9
Dec 18 09:13:03.638 INFO [stderr]     |
Dec 18 09:13:03.638 INFO [stderr] 115 |     let mut ipv4_payload = ipv4.payload_mut();
Dec 18 09:13:03.638 INFO [stderr]     |         ----^^^^^^^^^^^^
Dec 18 09:13:03.638 INFO [stderr]     |         |
Dec 18 09:13:03.638 INFO [stderr]     |         help: remove this `mut`
Dec 18 09:13:03.638 INFO [stderr]     |
Dec 18 09:13:03.638 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 09:13:03.638 INFO [stderr] 
Dec 18 09:13:03.692 INFO [stderr] warning: variable does not need to be mutable
Dec 18 09:13:03.692 INFO [stderr]    --> src/main.rs:115:9
Dec 18 09:13:03.692 INFO [stderr]     |
Dec 18 09:13:03.692 INFO [stderr] 115 |     let mut ipv4_payload = ipv4.payload_mut();
Dec 18 09:13:03.692 INFO [stderr]     |         ----^^^^^^^^^^^^
Dec 18 09:13:03.692 INFO [stderr]     |         |
Dec 18 09:13:03.692 INFO [stderr]     |         help: remove this `mut`
Dec 18 09:13:03.692 INFO [stderr]     |
Dec 18 09:13:03.692 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 09:13:03.692 INFO [stderr] 
Dec 18 09:13:03.792 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 06s
Dec 18 09:13:04.036 INFO running `"docker" "inspect" "66035410aaa50a09690b215208b046474df642dbfe169469fc566a15cc310715"`
Dec 18 09:13:04.102 INFO running `"docker" "rm" "-f" "66035410aaa50a09690b215208b046474df642dbfe169469fc566a15cc310715"`
Dec 18 09:13:04.204 INFO [stdout] 66035410aaa50a09690b215208b046474df642dbfe169469fc566a15cc310715