Dec 11 15:54:46.880 INFO checking justinbarclay/ArpPoison against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 15:54:46.880 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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"`
Dec 11 15:54:47.359 INFO [stdout] 97c1ee656ff6b076ea04b92a3ab5cce24abf59129a47afa63b412e3d30be6b7e
Dec 11 15:54:47.361 INFO running `"docker" "start" "-a" "97c1ee656ff6b076ea04b92a3ab5cce24abf59129a47afa63b412e3d30be6b7e"`
Dec 11 15:54:49.427 INFO [stderr] usermod: no changes
Dec 11 15:54:49.628 INFO [stderr]    Compiling lazy_static v0.2.9
Dec 11 15:54:49.636 INFO [stderr]     Checking pnet_base v0.20.0
Dec 11 15:54:49.636 INFO [stderr]    Compiling pnet v0.20.0
Dec 11 15:54:49.644 INFO [stderr]     Checking ipnetwork v0.12.7
Dec 11 15:54:49.644 INFO [stderr]    Compiling memchr v1.0.2
Dec 11 15:54:49.644 INFO [stderr]     Checking pnet_sys v0.20.0
Dec 11 15:54:49.644 INFO [stderr]    Compiling syntex_errors v0.42.0
Dec 11 15:54:51.345 INFO [stderr]    Compiling thread_local v0.3.4
Dec 11 15:54:52.016 INFO [stderr]     Checking pnet_macros_support v0.20.0
Dec 11 15:54:52.558 INFO [stderr]     Checking pnet_datalink v0.20.0
Dec 11 15:54:52.600 INFO [stderr]    Compiling aho-corasick v0.6.3
Dec 11 15:54:57.505 INFO [stderr]    Compiling regex v0.2.2
Dec 11 15:54:57.593 INFO [stderr]    Compiling syntex_syntax v0.42.0
Dec 11 15:55:44.423 INFO [stderr]    Compiling syntex v0.42.2
Dec 11 15:55:45.476 INFO [stderr]    Compiling pnet_macros v0.20.0
Dec 11 15:55:48.196 INFO [stderr]    Compiling pnet_packet v0.20.0
Dec 11 15:56:02.169 INFO [stderr]     Checking pnet_transport v0.20.0
Dec 11 15:56:03.151 INFO [stderr]     Checking arp v0.1.0 (/source)
Dec 11 15:56:04.192 INFO [stderr] warning: variable does not need to be mutable
Dec 11 15:56:04.192 INFO [stderr]   --> src/main.rs:43:27
Dec 11 15:56:04.192 INFO [stderr]    |
Dec 11 15:56:04.192 INFO [stderr] 43 |                     &mut |mut new_packet| {
Dec 11 15:56:04.192 INFO [stderr]    |                           ----^^^^^^^^^^
Dec 11 15:56:04.192 INFO [stderr]    |                           |
Dec 11 15:56:04.192 INFO [stderr]    |                           help: remove this `mut`
Dec 11 15:56:04.192 INFO [stderr]    |
Dec 11 15:56:04.193 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 15:56:04.193 INFO [stderr] 
Dec 11 15:56:04.252 INFO [stderr] warning: variable does not need to be mutable
Dec 11 15:56:04.252 INFO [stderr]   --> src/main.rs:43:27
Dec 11 15:56:04.252 INFO [stderr]    |
Dec 11 15:56:04.252 INFO [stderr] 43 |                     &mut |mut new_packet| {
Dec 11 15:56:04.252 INFO [stderr]    |                           ----^^^^^^^^^^
Dec 11 15:56:04.252 INFO [stderr]    |                           |
Dec 11 15:56:04.253 INFO [stderr]    |                           help: remove this `mut`
Dec 11 15:56:04.253 INFO [stderr]    |
Dec 11 15:56:04.253 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 15:56:04.253 INFO [stderr] 
Dec 11 15:56:04.296 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 14s
Dec 11 15:56:04.305 INFO [stderr] su: No module specific data is present
Dec 11 15:56:05.680 INFO running `"docker" "inspect" "97c1ee656ff6b076ea04b92a3ab5cce24abf59129a47afa63b412e3d30be6b7e"`
Dec 11 15:56:06.078 INFO running `"docker" "rm" "-f" "97c1ee656ff6b076ea04b92a3ab5cce24abf59129a47afa63b412e3d30be6b7e"`
Dec 11 15:56:06.376 INFO [stdout] 97c1ee656ff6b076ea04b92a3ab5cce24abf59129a47afa63b412e3d30be6b7e