Dec 18 09:11:55.804 INFO checking wping-0.3.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 09:11:55.808 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 09:11:56.240 INFO [stdout] ca494617f30f452c41b9491bb2069401a018f402292fd7de0adc5fb6b0d7622d
Dec 18 09:11:56.243 INFO running `"docker" "start" "-a" "ca494617f30f452c41b9491bb2069401a018f402292fd7de0adc5fb6b0d7622d"`
Dec 18 09:11:57.803 INFO [stderr]     Checking unicode-xid v0.0.3
Dec 18 09:11:57.805 INFO [stderr]     Checking pnet_macros_support v0.1.1
Dec 18 09:11:57.809 INFO [stderr]     Checking syntex_pos v0.42.0
Dec 18 09:11:57.810 INFO [stderr]    Compiling syntex_errors v0.42.0
Dec 18 09:11:57.811 INFO [stderr]     Checking resolve v0.1.2
Dec 18 09:11:57.811 INFO [stderr]     Checking chrono v0.3.0
Dec 18 09:12:04.312 INFO [stderr]     Checking syntex_syntax v0.42.0
Dec 18 09:12:23.926 INFO [stderr]     Checking syntex v0.42.2
Dec 18 09:12:24.852 INFO [stderr]     Checking pnet_macros v0.15.0
Dec 18 09:12:54.063 INFO [stderr]    Compiling pnet v0.16.0
Dec 18 09:13:02.319 INFO [stderr]     Checking wping v0.3.0 (/opt/crater/workdir)
Dec 18 09:13:03.010 INFO [stderr] warning: variable does not need to be mutable
Dec 18 09:13:03.010 INFO [stderr]    --> src/main.rs:115:9
Dec 18 09:13:03.010 INFO [stderr]     |
Dec 18 09:13:03.010 INFO [stderr] 115 |     let mut ipv4_payload = ipv4.payload_mut();
Dec 18 09:13:03.010 INFO [stderr]     |         ----^^^^^^^^^^^^
Dec 18 09:13:03.010 INFO [stderr]     |         |
Dec 18 09:13:03.010 INFO [stderr]     |         help: remove this `mut`
Dec 18 09:13:03.010 INFO [stderr]     |
Dec 18 09:13:03.010 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 09:13:03.010 INFO [stderr] 
Dec 18 09:13:03.119 INFO [stderr] warning: variable does not need to be mutable
Dec 18 09:13:03.119 INFO [stderr]    --> src/main.rs:115:9
Dec 18 09:13:03.119 INFO [stderr]     |
Dec 18 09:13:03.119 INFO [stderr] 115 |     let mut ipv4_payload = ipv4.payload_mut();
Dec 18 09:13:03.119 INFO [stderr]     |         ----^^^^^^^^^^^^
Dec 18 09:13:03.119 INFO [stderr]     |         |
Dec 18 09:13:03.119 INFO [stderr]     |         help: remove this `mut`
Dec 18 09:13:03.119 INFO [stderr]     |
Dec 18 09:13:03.119 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 09:13:03.119 INFO [stderr] 
Dec 18 09:13:03.207 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 05s
Dec 18 09:13:03.577 INFO running `"docker" "inspect" "ca494617f30f452c41b9491bb2069401a018f402292fd7de0adc5fb6b0d7622d"`
Dec 18 09:13:03.659 INFO running `"docker" "rm" "-f" "ca494617f30f452c41b9491bb2069401a018f402292fd7de0adc5fb6b0d7622d"`
Dec 18 09:13:03.765 INFO [stdout] ca494617f30f452c41b9491bb2069401a018f402292fd7de0adc5fb6b0d7622d