Dec 17 15:00:01.618 INFO checking sourcepirate/covert_tcp against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 15:00:01.619 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 15:00:02.122 INFO [stdout] 5f2b8195645651c5a2afb4982209c18366b1a0f2c465be27f6f471ea29be123b
Dec 17 15:00:02.124 INFO running `"docker" "start" "-a" "5f2b8195645651c5a2afb4982209c18366b1a0f2c465be27f6f471ea29be123b"`
Dec 17 15:00:03.843 INFO [stderr]    Compiling ucd-util v0.1.2
Dec 17 15:00:03.844 INFO [stderr]     Checking pnet_sys v0.21.0
Dec 17 15:00:03.846 INFO [stderr]    Compiling memchr v2.1.1
Dec 17 15:00:03.846 INFO [stderr]    Compiling syntex_errors v0.42.0
Dec 17 15:00:03.846 INFO [stderr]    Compiling syn v0.15.18
Dec 17 15:00:03.847 INFO [stderr]     Checking regex v1.0.5
Dec 17 15:00:04.976 INFO [stderr]     Checking pnet_datalink v0.21.0
Dec 17 15:00:05.022 INFO [stderr]    Compiling regex-syntax v0.5.6
Dec 17 15:00:06.893 INFO [stderr]    Compiling aho-corasick v0.6.9
Dec 17 15:00:09.673 INFO [stderr]    Compiling syntex_syntax v0.42.0
Dec 17 15:00:11.748 INFO [stderr]     Checking env_logger v0.5.13
Dec 17 15:00:19.996 INFO [stderr]    Compiling serde_derive v1.0.80
Dec 17 15:00:20.077 INFO [stderr]    Compiling regex v0.2.11
Dec 17 15:00:34.315 INFO [stderr]     Checking docopt v1.0.2
Dec 17 15:00:59.470 INFO [stderr]    Compiling syntex v0.42.2
Dec 17 15:01:00.631 INFO [stderr]    Compiling pnet_macros v0.21.0
Dec 17 15:01:03.323 INFO [stderr]    Compiling pnet_packet v0.21.0
Dec 17 15:01:14.856 INFO [stderr]     Checking pnet_transport v0.21.0
Dec 17 15:01:15.176 INFO [stderr]     Checking pnet v0.21.0
Dec 17 15:01:15.336 INFO [stderr]     Checking covert_tcp v0.1.0 (/opt/crater/workdir)
Dec 17 15:01:15.670 INFO [stderr] warning: doc comment not used by rustdoc
Dec 17 15:01:15.670 INFO [stderr]   --> src/packet.rs:66:9
Dec 17 15:01:15.670 INFO [stderr]    |
Dec 17 15:01:15.671 INFO [stderr] 66 |         /// Building an IPV4 packet.
Dec 17 15:01:15.671 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:15.671 INFO [stderr]    |
Dec 17 15:01:15.671 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Dec 17 15:01:15.672 INFO [stderr] 
Dec 17 15:01:15.672 INFO [stderr] warning: doc comment not used by rustdoc
Dec 17 15:01:15.672 INFO [stderr]   --> src/packet.rs:78:9
Dec 17 15:01:15.672 INFO [stderr]    |
Dec 17 15:01:15.673 INFO [stderr] 78 |         /// Building an TCP packet
Dec 17 15:01:15.673 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:15.673 INFO [stderr] 
Dec 17 15:01:15.673 INFO [stderr] warning: unused import: `EtherTypes`
Dec 17 15:01:15.673 INFO [stderr]  --> src/sniffer.rs:3:30
Dec 17 15:01:15.674 INFO [stderr]   |
Dec 17 15:01:15.674 INFO [stderr] 3 | use pnet::packet::ethernet::{EtherTypes, EthernetPacket, MutableEthernetPacket};
Dec 17 15:01:15.674 INFO [stderr]   |                              ^^^^^^^^^^
Dec 17 15:01:15.674 INFO [stderr]   |
Dec 17 15:01:15.675 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 15:01:15.675 INFO [stderr] 
Dec 17 15:01:15.675 INFO [stderr] warning: unused import: `pnet::packet::icmpv6::Icmpv6Packet`
Dec 17 15:01:15.675 INFO [stderr]  --> src/sniffer.rs:4:5
Dec 17 15:01:15.675 INFO [stderr]   |
Dec 17 15:01:15.676 INFO [stderr] 4 | use pnet::packet::icmpv6::Icmpv6Packet;
Dec 17 15:01:15.676 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:15.676 INFO [stderr] 
Dec 17 15:01:15.676 INFO [stderr] warning: unused imports: `IpNextHeaderProtocol`, `IpNextHeaderProtocols`
Dec 17 15:01:15.676 INFO [stderr]  --> src/sniffer.rs:5:24
Dec 17 15:01:15.677 INFO [stderr]   |
Dec 17 15:01:15.677 INFO [stderr] 5 | use pnet::packet::ip::{IpNextHeaderProtocol, IpNextHeaderProtocols};
Dec 17 15:01:15.677 INFO [stderr]   |                        ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:15.677 INFO [stderr] 
Dec 17 15:01:15.678 INFO [stderr] warning: unused import: `pnet::packet::ipv6::Ipv6Packet`
Dec 17 15:01:15.678 INFO [stderr]  --> src/sniffer.rs:7:5
Dec 17 15:01:15.678 INFO [stderr]   |
Dec 17 15:01:15.678 INFO [stderr] 7 | use pnet::packet::ipv6::Ipv6Packet;
Dec 17 15:01:15.678 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:15.679 INFO [stderr] 
Dec 17 15:01:15.679 INFO [stderr] warning: unused import: `pnet::packet::tcp::TcpPacket`
Dec 17 15:01:15.679 INFO [stderr]  --> src/sniffer.rs:8:5
Dec 17 15:01:15.679 INFO [stderr]   |
Dec 17 15:01:15.680 INFO [stderr] 8 | use pnet::packet::tcp::TcpPacket;
Dec 17 15:01:15.680 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:15.680 INFO [stderr] 
Dec 17 15:01:15.680 INFO [stderr] warning: unused import: `pnet::util::MacAddr`
Dec 17 15:01:15.681 INFO [stderr]   --> src/sniffer.rs:10:5
Dec 17 15:01:15.681 INFO [stderr]    |
Dec 17 15:01:15.681 INFO [stderr] 10 | use pnet::util::MacAddr;
Dec 17 15:01:15.681 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:15.681 INFO [stderr] 
Dec 17 15:01:15.682 INFO [stderr] warning: unused import: `std::io::Write`
Dec 17 15:01:15.682 INFO [stderr]   --> src/sniffer.rs:12:5
Dec 17 15:01:15.682 INFO [stderr]    |
Dec 17 15:01:15.682 INFO [stderr] 12 | use std::io::Write;
Dec 17 15:01:15.683 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 17 15:01:15.683 INFO [stderr] 
Dec 17 15:01:15.683 INFO [stderr] warning: unused import: `std::net::IpAddr`
Dec 17 15:01:15.683 INFO [stderr]   --> src/sniffer.rs:13:5
Dec 17 15:01:15.683 INFO [stderr]    |
Dec 17 15:01:15.683 INFO [stderr] 13 | use std::net::IpAddr;
Dec 17 15:01:15.683 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 17 15:01:15.683 INFO [stderr] 
Dec 17 15:01:15.688 INFO [stderr] warning: doc comment not used by rustdoc
Dec 17 15:01:15.689 INFO [stderr]   --> src/packet.rs:66:9
Dec 17 15:01:15.689 INFO [stderr]    |
Dec 17 15:01:15.689 INFO [stderr] 66 |         /// Building an IPV4 packet.
Dec 17 15:01:15.689 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:15.690 INFO [stderr]    |
Dec 17 15:01:15.690 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Dec 17 15:01:15.690 INFO [stderr] 
Dec 17 15:01:15.690 INFO [stderr] warning: doc comment not used by rustdoc
Dec 17 15:01:15.691 INFO [stderr]   --> src/packet.rs:78:9
Dec 17 15:01:15.691 INFO [stderr]    |
Dec 17 15:01:15.691 INFO [stderr] 78 |         /// Building an TCP packet
Dec 17 15:01:15.691 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:15.692 INFO [stderr] 
Dec 17 15:01:15.692 INFO [stderr] warning: unused import: `EtherTypes`
Dec 17 15:01:15.692 INFO [stderr]  --> src/sniffer.rs:3:30
Dec 17 15:01:15.692 INFO [stderr]   |
Dec 17 15:01:15.693 INFO [stderr] 3 | use pnet::packet::ethernet::{EtherTypes, EthernetPacket, MutableEthernetPacket};
Dec 17 15:01:15.693 INFO [stderr]   |                              ^^^^^^^^^^
Dec 17 15:01:15.693 INFO [stderr]   |
Dec 17 15:01:15.694 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 15:01:15.694 INFO [stderr] 
Dec 17 15:01:15.694 INFO [stderr] warning: unused import: `pnet::packet::icmpv6::Icmpv6Packet`
Dec 17 15:01:15.694 INFO [stderr]  --> src/sniffer.rs:4:5
Dec 17 15:01:15.694 INFO [stderr]   |
Dec 17 15:01:15.695 INFO [stderr] 4 | use pnet::packet::icmpv6::Icmpv6Packet;
Dec 17 15:01:15.695 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:15.695 INFO [stderr] 
Dec 17 15:01:15.695 INFO [stderr] warning: unused imports: `IpNextHeaderProtocol`, `IpNextHeaderProtocols`
Dec 17 15:01:15.696 INFO [stderr]  --> src/sniffer.rs:5:24
Dec 17 15:01:15.696 INFO [stderr]   |
Dec 17 15:01:15.696 INFO [stderr] 5 | use pnet::packet::ip::{IpNextHeaderProtocol, IpNextHeaderProtocols};
Dec 17 15:01:15.697 INFO [stderr]   |                        ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:15.697 INFO [stderr] 
Dec 17 15:01:15.697 INFO [stderr] warning: unused import: `pnet::packet::ipv6::Ipv6Packet`
Dec 17 15:01:15.697 INFO [stderr]  --> src/sniffer.rs:7:5
Dec 17 15:01:15.697 INFO [stderr]   |
Dec 17 15:01:15.698 INFO [stderr] 7 | use pnet::packet::ipv6::Ipv6Packet;
Dec 17 15:01:15.698 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:15.698 INFO [stderr] 
Dec 17 15:01:15.698 INFO [stderr] warning: unused import: `pnet::packet::tcp::TcpPacket`
Dec 17 15:01:15.699 INFO [stderr]  --> src/sniffer.rs:8:5
Dec 17 15:01:15.699 INFO [stderr]   |
Dec 17 15:01:15.699 INFO [stderr] 8 | use pnet::packet::tcp::TcpPacket;
Dec 17 15:01:15.699 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:15.700 INFO [stderr] 
Dec 17 15:01:15.700 INFO [stderr] warning: unused import: `pnet::util::MacAddr`
Dec 17 15:01:15.700 INFO [stderr]   --> src/sniffer.rs:10:5
Dec 17 15:01:15.700 INFO [stderr]    |
Dec 17 15:01:15.700 INFO [stderr] 10 | use pnet::util::MacAddr;
Dec 17 15:01:15.700 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:15.700 INFO [stderr] 
Dec 17 15:01:15.700 INFO [stderr] warning: unused import: `std::io::Write`
Dec 17 15:01:15.700 INFO [stderr]   --> src/sniffer.rs:12:5
Dec 17 15:01:15.700 INFO [stderr]    |
Dec 17 15:01:15.700 INFO [stderr] 12 | use std::io::Write;
Dec 17 15:01:15.700 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 17 15:01:15.700 INFO [stderr] 
Dec 17 15:01:15.700 INFO [stderr] warning: unused import: `std::net::IpAddr`
Dec 17 15:01:15.700 INFO [stderr]   --> src/sniffer.rs:13:5
Dec 17 15:01:15.700 INFO [stderr]    |
Dec 17 15:01:15.700 INFO [stderr] 13 | use std::net::IpAddr;
Dec 17 15:01:15.700 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 17 15:01:15.700 INFO [stderr] 
Dec 17 15:01:15.940 INFO [stderr] warning: unreachable expression
Dec 17 15:01:15.940 INFO [stderr]   --> src/sniffer.rs:73:9
Dec 17 15:01:15.940 INFO [stderr]    |
Dec 17 15:01:15.940 INFO [stderr] 73 |         Ok(())
Dec 17 15:01:15.940 INFO [stderr]    |         ^^^^^^
Dec 17 15:01:15.957 INFO [stderr]    |
Dec 17 15:01:15.957 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Dec 17 15:01:15.957 INFO [stderr] 
Dec 17 15:01:15.980 INFO [stderr] warning: unreachable expression
Dec 17 15:01:15.980 INFO [stderr]   --> src/sniffer.rs:73:9
Dec 17 15:01:15.980 INFO [stderr]    |
Dec 17 15:01:15.980 INFO [stderr] 73 |         Ok(())
Dec 17 15:01:15.980 INFO [stderr]    |         ^^^^^^
Dec 17 15:01:15.980 INFO [stderr]    |
Dec 17 15:01:15.980 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Dec 17 15:01:15.980 INFO [stderr] 
Dec 17 15:01:15.982 INFO [stderr] warning: unused variable: `e`
Dec 17 15:01:15.982 INFO [stderr]   --> src/sniffer.rs:59:17
Dec 17 15:01:15.982 INFO [stderr]    |
Dec 17 15:01:15.982 INFO [stderr] 59 |             Err(e) => return Err(ReciverError::PacketError),
Dec 17 15:01:15.982 INFO [stderr]    |                 ^ help: consider using `_e` instead
Dec 17 15:01:15.982 INFO [stderr]    |
Dec 17 15:01:15.982 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 15:01:15.982 INFO [stderr] 
Dec 17 15:01:15.982 INFO [stderr] warning: unused variable: `fake_ethernet_frame`
Dec 17 15:01:15.982 INFO [stderr]   --> src/sniffer.rs:64:21
Dec 17 15:01:15.982 INFO [stderr]    |
Dec 17 15:01:15.982 INFO [stderr] 64 |             let mut fake_ethernet_frame = MutableEthernetPacket::new(&mut buf[..]).unwrap();
Dec 17 15:01:15.982 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^ help: consider using `_fake_ethernet_frame` instead
Dec 17 15:01:15.982 INFO [stderr] 
Dec 17 15:01:15.991 INFO [stderr] warning: unused variable: `e`
Dec 17 15:01:15.991 INFO [stderr]   --> src/sniffer.rs:59:17
Dec 17 15:01:15.991 INFO [stderr]    |
Dec 17 15:01:15.991 INFO [stderr] 59 |             Err(e) => return Err(ReciverError::PacketError),
Dec 17 15:01:15.991 INFO [stderr]    |                 ^ help: consider using `_e` instead
Dec 17 15:01:15.991 INFO [stderr]    |
Dec 17 15:01:15.991 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 15:01:15.991 INFO [stderr] 
Dec 17 15:01:15.991 INFO [stderr] warning: unused variable: `fake_ethernet_frame`
Dec 17 15:01:15.991 INFO [stderr]   --> src/sniffer.rs:64:21
Dec 17 15:01:15.991 INFO [stderr]    |
Dec 17 15:01:15.991 INFO [stderr] 64 |             let mut fake_ethernet_frame = MutableEthernetPacket::new(&mut buf[..]).unwrap();
Dec 17 15:01:15.991 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^ help: consider using `_fake_ethernet_frame` instead
Dec 17 15:01:15.991 INFO [stderr] 
Dec 17 15:01:16.081 INFO [stderr] warning: variable does not need to be mutable
Dec 17 15:01:16.081 INFO [stderr]   --> src/main.rs:61:13
Dec 17 15:01:16.081 INFO [stderr]    |
Dec 17 15:01:16.081 INFO [stderr] 61 |         let mut relative_path: PathBuf;
Dec 17 15:01:16.081 INFO [stderr]    |             ----^^^^^^^^^^^^^
Dec 17 15:01:16.081 INFO [stderr]    |             |
Dec 17 15:01:16.081 INFO [stderr]    |             help: remove this `mut`
Dec 17 15:01:16.081 INFO [stderr]    |
Dec 17 15:01:16.081 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 15:01:16.081 INFO [stderr] 
Dec 17 15:01:16.081 INFO [stderr] warning: variable does not need to be mutable
Dec 17 15:01:16.081 INFO [stderr]   --> src/main.rs:67:13
Dec 17 15:01:16.081 INFO [stderr]    |
Dec 17 15:01:16.081 INFO [stderr] 67 |         let mut file = File::open(relative_path).unwrap();
Dec 17 15:01:16.081 INFO [stderr]    |             ----^^^^
Dec 17 15:01:16.081 INFO [stderr]    |             |
Dec 17 15:01:16.081 INFO [stderr]    |             help: remove this `mut`
Dec 17 15:01:16.081 INFO [stderr] 
Dec 17 15:01:16.117 INFO [stderr] warning: variable does not need to be mutable
Dec 17 15:01:16.117 INFO [stderr]   --> src/sniffer.rs:64:17
Dec 17 15:01:16.117 INFO [stderr]    |
Dec 17 15:01:16.117 INFO [stderr] 64 |             let mut fake_ethernet_frame = MutableEthernetPacket::new(&mut buf[..]).unwrap();
Dec 17 15:01:16.117 INFO [stderr]    |                 ----^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:16.117 INFO [stderr]    |                 |
Dec 17 15:01:16.117 INFO [stderr]    |                 help: remove this `mut`
Dec 17 15:01:16.117 INFO [stderr] 
Dec 17 15:01:16.117 INFO [stderr] warning: field is never used: `rx`
Dec 17 15:01:16.117 INFO [stderr]   --> src/packet.rs:17:5
Dec 17 15:01:16.117 INFO [stderr]    |
Dec 17 15:01:16.117 INFO [stderr] 17 |     rx: TransportReceiver,
Dec 17 15:01:16.118 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:16.118 INFO [stderr]    |
Dec 17 15:01:16.118 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 15:01:16.118 INFO [stderr] 
Dec 17 15:01:16.118 INFO [stderr] warning: method is never used: `packets`
Dec 17 15:01:16.118 INFO [stderr]   --> src/packet.rs:36:5
Dec 17 15:01:16.118 INFO [stderr]    |
Dec 17 15:01:16.119 INFO [stderr] 36 |     pub fn packets(&mut self) -> Ipv4TransportChannelIterator {
Dec 17 15:01:16.119 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:16.119 INFO [stderr] 
Dec 17 15:01:16.119 INFO [stderr] warning: method is never used: `recv`
Dec 17 15:01:16.119 INFO [stderr]   --> src/packet.rs:97:5
Dec 17 15:01:16.119 INFO [stderr]    |
Dec 17 15:01:16.120 INFO [stderr] 97 |     pub fn recv(&mut self) -> () {
Dec 17 15:01:16.120 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:16.120 INFO [stderr] 
Dec 17 15:01:16.128 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 15:01:16.129 INFO [stderr]   --> src/main.rs:97:9
Dec 17 15:01:16.129 INFO [stderr]    |
Dec 17 15:01:16.129 INFO [stderr] 97 |         sniff.recv();
Dec 17 15:01:16.129 INFO [stderr]    |         ^^^^^^^^^^^^^
Dec 17 15:01:16.129 INFO [stderr]    |
Dec 17 15:01:16.129 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 15:01:16.129 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 15:01:16.129 INFO [stderr] 
Dec 17 15:01:16.133 INFO [stderr] warning: variable does not need to be mutable
Dec 17 15:01:16.133 INFO [stderr]   --> src/main.rs:61:13
Dec 17 15:01:16.133 INFO [stderr]    |
Dec 17 15:01:16.133 INFO [stderr] 61 |         let mut relative_path: PathBuf;
Dec 17 15:01:16.133 INFO [stderr]    |             ----^^^^^^^^^^^^^
Dec 17 15:01:16.133 INFO [stderr]    |             |
Dec 17 15:01:16.133 INFO [stderr]    |             help: remove this `mut`
Dec 17 15:01:16.133 INFO [stderr]    |
Dec 17 15:01:16.133 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 15:01:16.133 INFO [stderr] 
Dec 17 15:01:16.133 INFO [stderr] warning: variable does not need to be mutable
Dec 17 15:01:16.133 INFO [stderr]   --> src/main.rs:67:13
Dec 17 15:01:16.133 INFO [stderr]    |
Dec 17 15:01:16.133 INFO [stderr] 67 |         let mut file = File::open(relative_path).unwrap();
Dec 17 15:01:16.133 INFO [stderr]    |             ----^^^^
Dec 17 15:01:16.133 INFO [stderr]    |             |
Dec 17 15:01:16.133 INFO [stderr]    |             help: remove this `mut`
Dec 17 15:01:16.133 INFO [stderr] 
Dec 17 15:01:16.164 INFO [stderr] warning: variable does not need to be mutable
Dec 17 15:01:16.164 INFO [stderr]   --> src/sniffer.rs:64:17
Dec 17 15:01:16.165 INFO [stderr]    |
Dec 17 15:01:16.165 INFO [stderr] 64 |             let mut fake_ethernet_frame = MutableEthernetPacket::new(&mut buf[..]).unwrap();
Dec 17 15:01:16.165 INFO [stderr]    |                 ----^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:16.165 INFO [stderr]    |                 |
Dec 17 15:01:16.166 INFO [stderr]    |                 help: remove this `mut`
Dec 17 15:01:16.166 INFO [stderr] 
Dec 17 15:01:16.167 INFO [stderr] warning: field is never used: `rx`
Dec 17 15:01:16.167 INFO [stderr]   --> src/packet.rs:17:5
Dec 17 15:01:16.167 INFO [stderr]    |
Dec 17 15:01:16.167 INFO [stderr] 17 |     rx: TransportReceiver,
Dec 17 15:01:16.168 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:16.168 INFO [stderr]    |
Dec 17 15:01:16.168 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 15:01:16.168 INFO [stderr] 
Dec 17 15:01:16.169 INFO [stderr] warning: method is never used: `packets`
Dec 17 15:01:16.169 INFO [stderr]   --> src/packet.rs:36:5
Dec 17 15:01:16.169 INFO [stderr]    |
Dec 17 15:01:16.170 INFO [stderr] 36 |     pub fn packets(&mut self) -> Ipv4TransportChannelIterator {
Dec 17 15:01:16.170 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:16.170 INFO [stderr] 
Dec 17 15:01:16.170 INFO [stderr] warning: method is never used: `recv`
Dec 17 15:01:16.171 INFO [stderr]   --> src/packet.rs:97:5
Dec 17 15:01:16.171 INFO [stderr]    |
Dec 17 15:01:16.171 INFO [stderr] 97 |     pub fn recv(&mut self) -> () {
Dec 17 15:01:16.172 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:01:16.172 INFO [stderr] 
Dec 17 15:01:16.175 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 15:01:16.175 INFO [stderr]   --> src/main.rs:97:9
Dec 17 15:01:16.175 INFO [stderr]    |
Dec 17 15:01:16.176 INFO [stderr] 97 |         sniff.recv();
Dec 17 15:01:16.176 INFO [stderr]    |         ^^^^^^^^^^^^^
Dec 17 15:01:16.176 INFO [stderr]    |
Dec 17 15:01:16.177 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 15:01:16.178 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 15:01:16.178 INFO [stderr] 
Dec 17 15:01:16.227 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 12s
Dec 17 15:01:16.877 INFO running `"docker" "inspect" "5f2b8195645651c5a2afb4982209c18366b1a0f2c465be27f6f471ea29be123b"`
Dec 17 15:01:17.136 INFO running `"docker" "rm" "-f" "5f2b8195645651c5a2afb4982209c18366b1a0f2c465be27f6f471ea29be123b"`
Dec 17 15:01:17.484 INFO [stdout] 5f2b8195645651c5a2afb4982209c18366b1a0f2c465be27f6f471ea29be123b