Dec 19 08:24:42.897 INFO checking sourcepirate/covert_tcp against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 08:24:42.897 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/sourcepirate/covert_tcp:/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 08:24:43.196 INFO [stdout] e7d945c934b57214e219e1870bb2be630a63798a0de5e235234a2d91c740aadb
Dec 19 08:24:43.198 INFO running `"docker" "start" "-a" "e7d945c934b57214e219e1870bb2be630a63798a0de5e235234a2d91c740aadb"`
Dec 19 08:24:44.532 INFO [stderr]    Compiling rustc-serialize v0.3.24
Dec 19 08:24:44.532 INFO [stderr]    Compiling term v0.4.6
Dec 19 08:24:44.532 INFO [stderr]    Compiling ucd-util v0.1.2
Dec 19 08:24:44.532 INFO [stderr]    Compiling bitflags v0.5.0
Dec 19 08:24:44.532 INFO [stderr]     Checking pnet_base v0.21.0
Dec 19 08:24:44.532 INFO [stderr]    Compiling pnet v0.21.0
Dec 19 08:24:44.532 INFO [stderr]     Checking ipnetwork v0.12.8
Dec 19 08:24:44.544 INFO [stderr]     Checking pnet_sys v0.21.0
Dec 19 08:24:45.212 INFO [stderr]    Compiling memchr v2.1.1
Dec 19 08:24:45.513 INFO [stderr]    Compiling thread_local v0.3.6
Dec 19 08:24:45.624 INFO [stderr]     Checking pnet_macros_support v0.21.0
Dec 19 08:24:45.696 INFO [stderr]     Checking pnet_datalink v0.21.0
Dec 19 08:24:45.760 INFO [stderr]     Checking env_logger v0.5.13
Dec 19 08:24:46.684 INFO [stderr]     Checking docopt v1.0.2
Dec 19 08:24:46.790 INFO [stderr]    Compiling regex-syntax v0.5.6
Dec 19 08:24:50.072 INFO [stderr]    Compiling aho-corasick v0.6.9
Dec 19 08:24:57.956 INFO [stderr]    Compiling syntex_pos v0.42.0
Dec 19 08:24:58.076 INFO [stderr]    Compiling regex v0.2.11
Dec 19 08:24:59.204 INFO [stderr]    Compiling syntex_errors v0.42.0
Dec 19 08:25:02.036 INFO [stderr]    Compiling syntex_syntax v0.42.0
Dec 19 08:25:42.760 INFO [stderr]    Compiling syntex v0.42.2
Dec 19 08:25:43.766 INFO [stderr]    Compiling pnet_macros v0.21.0
Dec 19 08:25:46.788 INFO [stderr]    Compiling pnet_packet v0.21.0
Dec 19 08:25:58.744 INFO [stderr]     Checking pnet_transport v0.21.0
Dec 19 08:25:59.340 INFO [stderr]     Checking covert_tcp v0.1.0 (/opt/crater/workdir)
Dec 19 08:25:59.764 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 08:25:59.764 INFO [stderr]   --> src/packet.rs:66:9
Dec 19 08:25:59.764 INFO [stderr]    |
Dec 19 08:25:59.764 INFO [stderr] 66 |         /// Building an IPV4 packet.
Dec 19 08:25:59.764 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:25:59.764 INFO [stderr]    |
Dec 19 08:25:59.764 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Dec 19 08:25:59.764 INFO [stderr] 
Dec 19 08:25:59.764 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 08:25:59.764 INFO [stderr]   --> src/packet.rs:78:9
Dec 19 08:25:59.764 INFO [stderr]    |
Dec 19 08:25:59.764 INFO [stderr] 78 |         /// Building an TCP packet
Dec 19 08:25:59.764 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:25:59.764 INFO [stderr] 
Dec 19 08:25:59.764 INFO [stderr] warning: unused import: `EtherTypes`
Dec 19 08:25:59.764 INFO [stderr]  --> src/sniffer.rs:3:30
Dec 19 08:25:59.764 INFO [stderr]   |
Dec 19 08:25:59.764 INFO [stderr] 3 | use pnet::packet::ethernet::{EtherTypes, EthernetPacket, MutableEthernetPacket};
Dec 19 08:25:59.764 INFO [stderr]   |                              ^^^^^^^^^^
Dec 19 08:25:59.764 INFO [stderr]   |
Dec 19 08:25:59.764 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 08:25:59.764 INFO [stderr] 
Dec 19 08:25:59.764 INFO [stderr] warning: unused import: `pnet::packet::icmpv6::Icmpv6Packet`
Dec 19 08:25:59.764 INFO [stderr]  --> src/sniffer.rs:4:5
Dec 19 08:25:59.764 INFO [stderr]   |
Dec 19 08:25:59.764 INFO [stderr] 4 | use pnet::packet::icmpv6::Icmpv6Packet;
Dec 19 08:25:59.764 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:25:59.765 INFO [stderr] 
Dec 19 08:25:59.765 INFO [stderr] warning: unused imports: `IpNextHeaderProtocol`, `IpNextHeaderProtocols`
Dec 19 08:25:59.765 INFO [stderr]  --> src/sniffer.rs:5:24
Dec 19 08:25:59.765 INFO [stderr]   |
Dec 19 08:25:59.766 INFO [stderr] 5 | use pnet::packet::ip::{IpNextHeaderProtocol, IpNextHeaderProtocols};
Dec 19 08:25:59.766 INFO [stderr]   |                        ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:25:59.766 INFO [stderr] 
Dec 19 08:25:59.766 INFO [stderr] warning: unused import: `pnet::packet::ipv6::Ipv6Packet`
Dec 19 08:25:59.766 INFO [stderr]  --> src/sniffer.rs:7:5
Dec 19 08:25:59.766 INFO [stderr]   |
Dec 19 08:25:59.766 INFO [stderr] 7 | use pnet::packet::ipv6::Ipv6Packet;
Dec 19 08:25:59.766 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:25:59.766 INFO [stderr] 
Dec 19 08:25:59.766 INFO [stderr] warning: unused import: `pnet::packet::tcp::TcpPacket`
Dec 19 08:25:59.766 INFO [stderr]  --> src/sniffer.rs:8:5
Dec 19 08:25:59.766 INFO [stderr]   |
Dec 19 08:25:59.766 INFO [stderr] 8 | use pnet::packet::tcp::TcpPacket;
Dec 19 08:25:59.767 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:25:59.767 INFO [stderr] 
Dec 19 08:25:59.767 INFO [stderr] warning: unused import: `pnet::util::MacAddr`
Dec 19 08:25:59.767 INFO [stderr]   --> src/sniffer.rs:10:5
Dec 19 08:25:59.767 INFO [stderr]    |
Dec 19 08:25:59.767 INFO [stderr] 10 | use pnet::util::MacAddr;
Dec 19 08:25:59.767 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 19 08:25:59.767 INFO [stderr] 
Dec 19 08:25:59.767 INFO [stderr] warning: unused import: `std::io::Write`
Dec 19 08:25:59.767 INFO [stderr]   --> src/sniffer.rs:12:5
Dec 19 08:25:59.767 INFO [stderr]    |
Dec 19 08:25:59.767 INFO [stderr] 12 | use std::io::Write;
Dec 19 08:25:59.767 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 19 08:25:59.767 INFO [stderr] 
Dec 19 08:25:59.767 INFO [stderr] warning: unused import: `std::net::IpAddr`
Dec 19 08:25:59.767 INFO [stderr]   --> src/sniffer.rs:13:5
Dec 19 08:25:59.767 INFO [stderr]    |
Dec 19 08:25:59.767 INFO [stderr] 13 | use std::net::IpAddr;
Dec 19 08:25:59.767 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 19 08:25:59.768 INFO [stderr] 
Dec 19 08:25:59.804 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 08:25:59.805 INFO [stderr]   --> src/packet.rs:66:9
Dec 19 08:25:59.805 INFO [stderr]    |
Dec 19 08:25:59.805 INFO [stderr] 66 |         /// Building an IPV4 packet.
Dec 19 08:25:59.805 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:25:59.805 INFO [stderr]    |
Dec 19 08:25:59.805 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Dec 19 08:25:59.805 INFO [stderr] 
Dec 19 08:25:59.805 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 08:25:59.805 INFO [stderr]   --> src/packet.rs:78:9
Dec 19 08:25:59.805 INFO [stderr]    |
Dec 19 08:25:59.805 INFO [stderr] 78 |         /// Building an TCP packet
Dec 19 08:25:59.805 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:25:59.805 INFO [stderr] 
Dec 19 08:25:59.805 INFO [stderr] warning: unused import: `EtherTypes`
Dec 19 08:25:59.805 INFO [stderr]  --> src/sniffer.rs:3:30
Dec 19 08:25:59.805 INFO [stderr]   |
Dec 19 08:25:59.805 INFO [stderr] 3 | use pnet::packet::ethernet::{EtherTypes, EthernetPacket, MutableEthernetPacket};
Dec 19 08:25:59.805 INFO [stderr]   |                              ^^^^^^^^^^
Dec 19 08:25:59.805 INFO [stderr]   |
Dec 19 08:25:59.805 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 08:25:59.805 INFO [stderr] 
Dec 19 08:25:59.805 INFO [stderr] warning: unused import: `pnet::packet::icmpv6::Icmpv6Packet`
Dec 19 08:25:59.805 INFO [stderr]  --> src/sniffer.rs:4:5
Dec 19 08:25:59.805 INFO [stderr]   |
Dec 19 08:25:59.805 INFO [stderr] 4 | use pnet::packet::icmpv6::Icmpv6Packet;
Dec 19 08:25:59.805 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:25:59.805 INFO [stderr] 
Dec 19 08:25:59.805 INFO [stderr] warning: unused imports: `IpNextHeaderProtocol`, `IpNextHeaderProtocols`
Dec 19 08:25:59.805 INFO [stderr]  --> src/sniffer.rs:5:24
Dec 19 08:25:59.805 INFO [stderr]   |
Dec 19 08:25:59.805 INFO [stderr] 5 | use pnet::packet::ip::{IpNextHeaderProtocol, IpNextHeaderProtocols};
Dec 19 08:25:59.805 INFO [stderr]   |                        ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:25:59.805 INFO [stderr] 
Dec 19 08:25:59.805 INFO [stderr] warning: unused import: `pnet::packet::ipv6::Ipv6Packet`
Dec 19 08:25:59.805 INFO [stderr]  --> src/sniffer.rs:7:5
Dec 19 08:25:59.805 INFO [stderr]   |
Dec 19 08:25:59.805 INFO [stderr] 7 | use pnet::packet::ipv6::Ipv6Packet;
Dec 19 08:25:59.805 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:25:59.805 INFO [stderr] 
Dec 19 08:25:59.805 INFO [stderr] warning: unused import: `pnet::packet::tcp::TcpPacket`
Dec 19 08:25:59.805 INFO [stderr]  --> src/sniffer.rs:8:5
Dec 19 08:25:59.805 INFO [stderr]   |
Dec 19 08:25:59.805 INFO [stderr] 8 | use pnet::packet::tcp::TcpPacket;
Dec 19 08:25:59.805 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:25:59.805 INFO [stderr] 
Dec 19 08:25:59.805 INFO [stderr] warning: unused import: `pnet::util::MacAddr`
Dec 19 08:25:59.805 INFO [stderr]   --> src/sniffer.rs:10:5
Dec 19 08:25:59.805 INFO [stderr]    |
Dec 19 08:25:59.805 INFO [stderr] 10 | use pnet::util::MacAddr;
Dec 19 08:25:59.805 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 19 08:25:59.805 INFO [stderr] 
Dec 19 08:25:59.805 INFO [stderr] warning: unused import: `std::io::Write`
Dec 19 08:25:59.805 INFO [stderr]   --> src/sniffer.rs:12:5
Dec 19 08:25:59.805 INFO [stderr]    |
Dec 19 08:25:59.805 INFO [stderr] 12 | use std::io::Write;
Dec 19 08:25:59.805 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 19 08:25:59.805 INFO [stderr] 
Dec 19 08:25:59.805 INFO [stderr] warning: unused import: `std::net::IpAddr`
Dec 19 08:25:59.805 INFO [stderr]   --> src/sniffer.rs:13:5
Dec 19 08:25:59.806 INFO [stderr]    |
Dec 19 08:25:59.806 INFO [stderr] 13 | use std::net::IpAddr;
Dec 19 08:25:59.806 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 19 08:25:59.806 INFO [stderr] 
Dec 19 08:25:59.897 INFO [stderr] warning: unreachable expression
Dec 19 08:25:59.897 INFO [stderr]   --> src/sniffer.rs:73:9
Dec 19 08:25:59.897 INFO [stderr]    |
Dec 19 08:25:59.898 INFO [stderr] 73 |         Ok(())
Dec 19 08:25:59.898 INFO [stderr]    |         ^^^^^^
Dec 19 08:25:59.898 INFO [stderr]    |
Dec 19 08:25:59.898 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Dec 19 08:25:59.899 INFO [stderr] 
Dec 19 08:25:59.911 INFO [stderr] warning: unused variable: `e`
Dec 19 08:25:59.911 INFO [stderr]   --> src/sniffer.rs:59:17
Dec 19 08:25:59.911 INFO [stderr]    |
Dec 19 08:25:59.912 INFO [stderr] 59 |             Err(e) => return Err(ReciverError::PacketError),
Dec 19 08:25:59.912 INFO [stderr]    |                 ^ help: consider using `_e` instead
Dec 19 08:25:59.912 INFO [stderr]    |
Dec 19 08:25:59.912 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 08:25:59.912 INFO [stderr] 
Dec 19 08:25:59.912 INFO [stderr] warning: unused variable: `fake_ethernet_frame`
Dec 19 08:25:59.912 INFO [stderr]   --> src/sniffer.rs:64:21
Dec 19 08:25:59.912 INFO [stderr]    |
Dec 19 08:25:59.912 INFO [stderr] 64 |             let mut fake_ethernet_frame = MutableEthernetPacket::new(&mut buf[..]).unwrap();
Dec 19 08:25:59.912 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^ help: consider using `_fake_ethernet_frame` instead
Dec 19 08:25:59.912 INFO [stderr] 
Dec 19 08:25:59.974 INFO [stderr] warning: variable does not need to be mutable
Dec 19 08:25:59.974 INFO [stderr]   --> src/main.rs:61:13
Dec 19 08:25:59.975 INFO [stderr]    |
Dec 19 08:25:59.975 INFO [stderr] 61 |         let mut relative_path: PathBuf;
Dec 19 08:25:59.975 INFO [stderr]    |             ----^^^^^^^^^^^^^
Dec 19 08:25:59.975 INFO [stderr]    |             |
Dec 19 08:25:59.975 INFO [stderr]    |             help: remove this `mut`
Dec 19 08:25:59.975 INFO [stderr]    |
Dec 19 08:25:59.976 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 08:25:59.976 INFO [stderr] 
Dec 19 08:25:59.976 INFO [stderr] warning: variable does not need to be mutable
Dec 19 08:25:59.976 INFO [stderr]   --> src/main.rs:67:13
Dec 19 08:25:59.976 INFO [stderr]    |
Dec 19 08:25:59.976 INFO [stderr] 67 |         let mut file = File::open(relative_path).unwrap();
Dec 19 08:25:59.976 INFO [stderr]    |             ----^^^^
Dec 19 08:25:59.976 INFO [stderr]    |             |
Dec 19 08:25:59.976 INFO [stderr]    |             help: remove this `mut`
Dec 19 08:25:59.976 INFO [stderr] 
Dec 19 08:26:00.004 INFO [stderr] warning: variable does not need to be mutable
Dec 19 08:26:00.004 INFO [stderr]   --> src/sniffer.rs:64:17
Dec 19 08:26:00.004 INFO [stderr]    |
Dec 19 08:26:00.004 INFO [stderr] 64 |             let mut fake_ethernet_frame = MutableEthernetPacket::new(&mut buf[..]).unwrap();
Dec 19 08:26:00.004 INFO [stderr]    |                 ----^^^^^^^^^^^^^^^^^^^
Dec 19 08:26:00.004 INFO [stderr]    |                 |
Dec 19 08:26:00.008 INFO [stderr]    |                 help: remove this `mut`
Dec 19 08:26:00.008 INFO [stderr] 
Dec 19 08:26:00.008 INFO [stderr] warning: field is never used: `rx`
Dec 19 08:26:00.008 INFO [stderr]   --> src/packet.rs:17:5
Dec 19 08:26:00.008 INFO [stderr]    |
Dec 19 08:26:00.008 INFO [stderr] 17 |     rx: TransportReceiver,
Dec 19 08:26:00.008 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:26:00.008 INFO [stderr]    |
Dec 19 08:26:00.008 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 08:26:00.008 INFO [stderr] 
Dec 19 08:26:00.008 INFO [stderr] warning: method is never used: `packets`
Dec 19 08:26:00.008 INFO [stderr]   --> src/packet.rs:36:5
Dec 19 08:26:00.008 INFO [stderr]    |
Dec 19 08:26:00.008 INFO [stderr] 36 |     pub fn packets(&mut self) -> Ipv4TransportChannelIterator {
Dec 19 08:26:00.008 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:26:00.008 INFO [stderr] 
Dec 19 08:26:00.008 INFO [stderr] warning: method is never used: `recv`
Dec 19 08:26:00.008 INFO [stderr]   --> src/packet.rs:97:5
Dec 19 08:26:00.008 INFO [stderr]    |
Dec 19 08:26:00.008 INFO [stderr] 97 |     pub fn recv(&mut self) -> () {
Dec 19 08:26:00.008 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:26:00.008 INFO [stderr] 
Dec 19 08:26:00.024 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 08:26:00.024 INFO [stderr]   --> src/main.rs:97:9
Dec 19 08:26:00.024 INFO [stderr]    |
Dec 19 08:26:00.024 INFO [stderr] 97 |         sniff.recv();
Dec 19 08:26:00.024 INFO [stderr]    |         ^^^^^^^^^^^^^
Dec 19 08:26:00.024 INFO [stderr]    |
Dec 19 08:26:00.024 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 08:26:00.024 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 08:26:00.024 INFO [stderr] 
Dec 19 08:26:00.048 INFO [stderr] warning: unreachable expression
Dec 19 08:26:00.048 INFO [stderr]   --> src/sniffer.rs:73:9
Dec 19 08:26:00.049 INFO [stderr]    |
Dec 19 08:26:00.049 INFO [stderr] 73 |         Ok(())
Dec 19 08:26:00.049 INFO [stderr]    |         ^^^^^^
Dec 19 08:26:00.049 INFO [stderr]    |
Dec 19 08:26:00.049 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Dec 19 08:26:00.049 INFO [stderr] 
Dec 19 08:26:00.068 INFO [stderr] warning: unused variable: `e`
Dec 19 08:26:00.068 INFO [stderr]   --> src/sniffer.rs:59:17
Dec 19 08:26:00.068 INFO [stderr]    |
Dec 19 08:26:00.068 INFO [stderr] 59 |             Err(e) => return Err(ReciverError::PacketError),
Dec 19 08:26:00.068 INFO [stderr]    |                 ^ help: consider using `_e` instead
Dec 19 08:26:00.068 INFO [stderr]    |
Dec 19 08:26:00.068 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 08:26:00.068 INFO [stderr] 
Dec 19 08:26:00.072 INFO [stderr] warning: unused variable: `fake_ethernet_frame`
Dec 19 08:26:00.072 INFO [stderr]   --> src/sniffer.rs:64:21
Dec 19 08:26:00.072 INFO [stderr]    |
Dec 19 08:26:00.072 INFO [stderr] 64 |             let mut fake_ethernet_frame = MutableEthernetPacket::new(&mut buf[..]).unwrap();
Dec 19 08:26:00.072 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^ help: consider using `_fake_ethernet_frame` instead
Dec 19 08:26:00.072 INFO [stderr] 
Dec 19 08:26:00.188 INFO [stderr] warning: variable does not need to be mutable
Dec 19 08:26:00.188 INFO [stderr]   --> src/main.rs:61:13
Dec 19 08:26:00.188 INFO [stderr]    |
Dec 19 08:26:00.188 INFO [stderr] 61 |         let mut relative_path: PathBuf;
Dec 19 08:26:00.188 INFO [stderr]    |             ----^^^^^^^^^^^^^
Dec 19 08:26:00.188 INFO [stderr]    |             |
Dec 19 08:26:00.188 INFO [stderr]    |             help: remove this `mut`
Dec 19 08:26:00.188 INFO [stderr]    |
Dec 19 08:26:00.188 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 08:26:00.188 INFO [stderr] 
Dec 19 08:26:00.189 INFO [stderr] warning: variable does not need to be mutable
Dec 19 08:26:00.189 INFO [stderr]   --> src/main.rs:67:13
Dec 19 08:26:00.189 INFO [stderr]    |
Dec 19 08:26:00.189 INFO [stderr] 67 |         let mut file = File::open(relative_path).unwrap();
Dec 19 08:26:00.189 INFO [stderr]    |             ----^^^^
Dec 19 08:26:00.189 INFO [stderr]    |             |
Dec 19 08:26:00.189 INFO [stderr]    |             help: remove this `mut`
Dec 19 08:26:00.189 INFO [stderr] 
Dec 19 08:26:00.229 INFO [stderr] warning: variable does not need to be mutable
Dec 19 08:26:00.232 INFO [stderr]   --> src/sniffer.rs:64:17
Dec 19 08:26:00.232 INFO [stderr]    |
Dec 19 08:26:00.232 INFO [stderr] 64 |             let mut fake_ethernet_frame = MutableEthernetPacket::new(&mut buf[..]).unwrap();
Dec 19 08:26:00.232 INFO [stderr]    |                 ----^^^^^^^^^^^^^^^^^^^
Dec 19 08:26:00.232 INFO [stderr]    |                 |
Dec 19 08:26:00.232 INFO [stderr]    |                 help: remove this `mut`
Dec 19 08:26:00.232 INFO [stderr] 
Dec 19 08:26:00.232 INFO [stderr] warning: field is never used: `rx`
Dec 19 08:26:00.232 INFO [stderr]   --> src/packet.rs:17:5
Dec 19 08:26:00.232 INFO [stderr]    |
Dec 19 08:26:00.232 INFO [stderr] 17 |     rx: TransportReceiver,
Dec 19 08:26:00.232 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:26:00.232 INFO [stderr]    |
Dec 19 08:26:00.232 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 08:26:00.232 INFO [stderr] 
Dec 19 08:26:00.232 INFO [stderr] warning: method is never used: `packets`
Dec 19 08:26:00.232 INFO [stderr]   --> src/packet.rs:36:5
Dec 19 08:26:00.232 INFO [stderr]    |
Dec 19 08:26:00.232 INFO [stderr] 36 |     pub fn packets(&mut self) -> Ipv4TransportChannelIterator {
Dec 19 08:26:00.232 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:26:00.232 INFO [stderr] 
Dec 19 08:26:00.232 INFO [stderr] warning: method is never used: `recv`
Dec 19 08:26:00.232 INFO [stderr]   --> src/packet.rs:97:5
Dec 19 08:26:00.232 INFO [stderr]    |
Dec 19 08:26:00.232 INFO [stderr] 97 |     pub fn recv(&mut self) -> () {
Dec 19 08:26:00.232 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:26:00.232 INFO [stderr] 
Dec 19 08:26:00.236 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 08:26:00.236 INFO [stderr]   --> src/main.rs:97:9
Dec 19 08:26:00.236 INFO [stderr]    |
Dec 19 08:26:00.236 INFO [stderr] 97 |         sniff.recv();
Dec 19 08:26:00.236 INFO [stderr]    |         ^^^^^^^^^^^^^
Dec 19 08:26:00.236 INFO [stderr]    |
Dec 19 08:26:00.236 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 08:26:00.236 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 08:26:00.236 INFO [stderr] 
Dec 19 08:26:00.268 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 15s
Dec 19 08:26:01.240 INFO running `"docker" "inspect" "e7d945c934b57214e219e1870bb2be630a63798a0de5e235234a2d91c740aadb"`
Dec 19 08:26:01.570 INFO running `"docker" "rm" "-f" "e7d945c934b57214e219e1870bb2be630a63798a0de5e235234a2d91c740aadb"`
Dec 19 08:26:01.901 INFO [stdout] e7d945c934b57214e219e1870bb2be630a63798a0de5e235234a2d91c740aadb