Dec 18 13:13:09.456 INFO checking packet-0.1.2 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 13:13:09.456 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/packet/0.1.2:/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 13:13:09.706 INFO [stdout] 290f34f5f1279a262896e62cbee4140a954f03c1a137b9dab0a9f605ee05f9fb
Dec 18 13:13:09.708 INFO running `"docker" "start" "-a" "290f34f5f1279a262896e62cbee4140a954f03c1a137b9dab0a9f605ee05f9fb"`
Dec 18 13:13:11.532 INFO [stderr]    Compiling libflate v0.1.19
Dec 18 13:13:11.544 INFO [stderr]    Compiling uuid v0.7.1
Dec 18 13:13:11.545 INFO [stderr]    Compiling futures-cpupool v0.1.8
Dec 18 13:13:11.565 INFO [stderr]    Compiling openssl v0.10.16
Dec 18 13:13:11.565 INFO [stderr]    Compiling serde_urlencoded v0.5.4
Dec 18 13:13:11.565 INFO [stderr]    Compiling http v0.1.14
Dec 18 13:13:11.574 INFO [stderr]    Compiling mime_guess v2.0.0-alpha.6
Dec 18 13:13:24.058 INFO [stderr]    Compiling native-tls v0.2.2
Dec 18 13:13:26.600 INFO [stderr]    Compiling h2 v0.1.14
Dec 18 13:13:32.276 INFO [stderr]    Compiling hyper v0.12.18
Dec 18 13:13:38.836 INFO [stderr]    Compiling hyper-tls v0.3.1
Dec 18 13:13:40.144 INFO [stderr]    Compiling reqwest v0.9.5
Dec 18 13:13:46.789 INFO [stderr]    Compiling hwaddr v0.1.5
Dec 18 13:13:53.644 INFO [stderr]     Checking packet v0.1.2 (/opt/crater/workdir)
Dec 18 13:13:54.484 INFO [stderr] warning: unnecessary parentheses around method argument
Dec 18 13:13:54.484 INFO [stderr]   --> src/ip/v4/packet.rs:43:51
Dec 18 13:13:54.484 INFO [stderr]    |
Dec 18 13:13:54.484 INFO [stderr] 43 |         size: p => (p.length() as usize).saturating_sub((p.header() as usize * 4)),
Dec 18 13:13:54.484 INFO [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 18 13:13:54.484 INFO [stderr]    |
Dec 18 13:13:54.484 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 18 13:13:54.484 INFO [stderr] 
Dec 18 13:13:54.484 INFO [stderr] warning: unused import: `std::net::Ipv4Addr`
Dec 18 13:13:54.484 INFO [stderr]   --> src/ip/v6/packet.rs:16:5
Dec 18 13:13:54.484 INFO [stderr]    |
Dec 18 13:13:54.484 INFO [stderr] 16 | use std::net::Ipv4Addr;
Dec 18 13:13:54.484 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 18 13:13:54.484 INFO [stderr]    |
Dec 18 13:13:54.484 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 13:13:54.484 INFO [stderr] 
Dec 18 13:13:54.484 INFO [stderr] warning: unused imports: `BigEndian`, `ReadBytesExt`
Dec 18 13:13:54.484 INFO [stderr]   --> src/ip/v6/packet.rs:17:17
Dec 18 13:13:54.484 INFO [stderr]    |
Dec 18 13:13:54.484 INFO [stderr] 17 | use byteorder::{ReadBytesExt, BigEndian};
Dec 18 13:13:54.484 INFO [stderr]    |                 ^^^^^^^^^^^^  ^^^^^^^^^
Dec 18 13:13:54.484 INFO [stderr] 
Dec 18 13:13:54.484 INFO [stderr] warning: unused import: `size`
Dec 18 13:13:54.484 INFO [stderr]   --> src/ip/v6/packet.rs:20:5
Dec 18 13:13:54.484 INFO [stderr]    |
Dec 18 13:13:54.484 INFO [stderr] 20 | use size;
Dec 18 13:13:54.484 INFO [stderr]    |     ^^^^
Dec 18 13:13:54.484 INFO [stderr] 
Dec 18 13:13:54.484 INFO [stderr] warning: unused import: `ip::Protocol`
Dec 18 13:13:54.484 INFO [stderr]   --> src/ip/v6/packet.rs:22:5
Dec 18 13:13:54.485 INFO [stderr]    |
Dec 18 13:13:54.485 INFO [stderr] 22 | use ip::Protocol;
Dec 18 13:13:54.485 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 18 13:13:54.485 INFO [stderr] 
Dec 18 13:13:54.485 INFO [stderr] warning: unused import: `ip::v4::Flags`
Dec 18 13:13:54.485 INFO [stderr]   --> src/ip/v6/packet.rs:23:5
Dec 18 13:13:54.485 INFO [stderr]    |
Dec 18 13:13:54.485 INFO [stderr] 23 | use ip::v4::Flags;
Dec 18 13:13:54.485 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 18 13:13:54.485 INFO [stderr] 
Dec 18 13:13:54.485 INFO [stderr] warning: unused import: `ip::v4::option`
Dec 18 13:13:54.485 INFO [stderr]   --> src/ip/v6/packet.rs:24:5
Dec 18 13:13:54.485 INFO [stderr]    |
Dec 18 13:13:54.485 INFO [stderr] 24 | use ip::v4::option;
Dec 18 13:13:54.485 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 18 13:13:54.485 INFO [stderr] 
Dec 18 13:13:54.485 INFO [stderr] warning: unused import: `ip::v4::checksum`
Dec 18 13:13:54.485 INFO [stderr]   --> src/ip/v6/packet.rs:25:5
Dec 18 13:13:54.485 INFO [stderr]    |
Dec 18 13:13:54.485 INFO [stderr] 25 | use ip::v4::checksum;
Dec 18 13:13:54.485 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 18 13:13:54.485 INFO [stderr] 
Dec 18 13:13:54.485 INFO [stderr] warning: unused import: `std::io::Cursor`
Dec 18 13:13:54.485 INFO [stderr]   --> src/ip/v6/builder.rs:15:5
Dec 18 13:13:54.485 INFO [stderr]    |
Dec 18 13:13:54.485 INFO [stderr] 15 | use std::io::Cursor;
Dec 18 13:13:54.485 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 13:13:54.485 INFO [stderr] 
Dec 18 13:13:54.485 INFO [stderr] warning: unused imports: `BigEndian`, `WriteBytesExt`
Dec 18 13:13:54.485 INFO [stderr]   --> src/ip/v6/builder.rs:16:17
Dec 18 13:13:54.485 INFO [stderr]    |
Dec 18 13:13:54.485 INFO [stderr] 16 | use byteorder::{WriteBytesExt, BigEndian};
Dec 18 13:13:54.485 INFO [stderr]    |                 ^^^^^^^^^^^^^  ^^^^^^^^^
Dec 18 13:13:54.485 INFO [stderr] 
Dec 18 13:13:54.632 INFO [stderr] warning: unnecessary parentheses around method argument
Dec 18 13:13:54.632 INFO [stderr]   --> src/ip/v4/packet.rs:43:51
Dec 18 13:13:54.632 INFO [stderr]    |
Dec 18 13:13:54.632 INFO [stderr] 43 |         size: p => (p.length() as usize).saturating_sub((p.header() as usize * 4)),
Dec 18 13:13:54.632 INFO [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 18 13:13:54.632 INFO [stderr]    |
Dec 18 13:13:54.632 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 18 13:13:54.632 INFO [stderr] 
Dec 18 13:13:54.632 INFO [stderr] warning: unused import: `std::net::Ipv4Addr`
Dec 18 13:13:54.632 INFO [stderr]   --> src/ip/v6/packet.rs:16:5
Dec 18 13:13:54.632 INFO [stderr]    |
Dec 18 13:13:54.632 INFO [stderr] 16 | use std::net::Ipv4Addr;
Dec 18 13:13:54.632 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 18 13:13:54.632 INFO [stderr]    |
Dec 18 13:13:54.632 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 13:13:54.632 INFO [stderr] 
Dec 18 13:13:54.632 INFO [stderr] warning: unused imports: `BigEndian`, `ReadBytesExt`
Dec 18 13:13:54.632 INFO [stderr]   --> src/ip/v6/packet.rs:17:17
Dec 18 13:13:54.632 INFO [stderr]    |
Dec 18 13:13:54.632 INFO [stderr] 17 | use byteorder::{ReadBytesExt, BigEndian};
Dec 18 13:13:54.633 INFO [stderr]    |                 ^^^^^^^^^^^^  ^^^^^^^^^
Dec 18 13:13:54.633 INFO [stderr] 
Dec 18 13:13:54.633 INFO [stderr] warning: unused import: `size`
Dec 18 13:13:54.633 INFO [stderr]   --> src/ip/v6/packet.rs:20:5
Dec 18 13:13:54.633 INFO [stderr]    |
Dec 18 13:13:54.633 INFO [stderr] 20 | use size;
Dec 18 13:13:54.633 INFO [stderr]    |     ^^^^
Dec 18 13:13:54.633 INFO [stderr] 
Dec 18 13:13:54.633 INFO [stderr] warning: unused import: `ip::Protocol`
Dec 18 13:13:54.633 INFO [stderr]   --> src/ip/v6/packet.rs:22:5
Dec 18 13:13:54.633 INFO [stderr]    |
Dec 18 13:13:54.633 INFO [stderr] 22 | use ip::Protocol;
Dec 18 13:13:54.633 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 18 13:13:54.633 INFO [stderr] 
Dec 18 13:13:54.633 INFO [stderr] warning: unused import: `ip::v4::Flags`
Dec 18 13:13:54.633 INFO [stderr]   --> src/ip/v6/packet.rs:23:5
Dec 18 13:13:54.633 INFO [stderr]    |
Dec 18 13:13:54.633 INFO [stderr] 23 | use ip::v4::Flags;
Dec 18 13:13:54.633 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 18 13:13:54.633 INFO [stderr] 
Dec 18 13:13:54.633 INFO [stderr] warning: unused import: `ip::v4::option`
Dec 18 13:13:54.633 INFO [stderr]   --> src/ip/v6/packet.rs:24:5
Dec 18 13:13:54.633 INFO [stderr]    |
Dec 18 13:13:54.633 INFO [stderr] 24 | use ip::v4::option;
Dec 18 13:13:54.633 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 18 13:13:54.633 INFO [stderr] 
Dec 18 13:13:54.633 INFO [stderr] warning: unused import: `ip::v4::checksum`
Dec 18 13:13:54.633 INFO [stderr]   --> src/ip/v6/packet.rs:25:5
Dec 18 13:13:54.633 INFO [stderr]    |
Dec 18 13:13:54.633 INFO [stderr] 25 | use ip::v4::checksum;
Dec 18 13:13:54.633 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 18 13:13:54.633 INFO [stderr] 
Dec 18 13:13:54.633 INFO [stderr] warning: unused import: `std::io::Cursor`
Dec 18 13:13:54.633 INFO [stderr]   --> src/ip/v6/builder.rs:15:5
Dec 18 13:13:54.633 INFO [stderr]    |
Dec 18 13:13:54.633 INFO [stderr] 15 | use std::io::Cursor;
Dec 18 13:13:54.633 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 13:13:54.633 INFO [stderr] 
Dec 18 13:13:54.633 INFO [stderr] warning: unused imports: `BigEndian`, `WriteBytesExt`
Dec 18 13:13:54.633 INFO [stderr]   --> src/ip/v6/builder.rs:16:17
Dec 18 13:13:54.633 INFO [stderr]    |
Dec 18 13:13:54.633 INFO [stderr] 16 | use byteorder::{WriteBytesExt, BigEndian};
Dec 18 13:13:54.633 INFO [stderr]    |                 ^^^^^^^^^^^^^  ^^^^^^^^^
Dec 18 13:13:54.633 INFO [stderr] 
Dec 18 13:13:55.380 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 13:13:55.380 INFO [stderr]   --> src/error.rs:15:1
Dec 18 13:13:55.380 INFO [stderr]    |
Dec 18 13:13:55.380 INFO [stderr] 15 | / error_chain! {
Dec 18 13:13:55.380 INFO [stderr] 16 | |     errors {
Dec 18 13:13:55.380 INFO [stderr] 17 | |         /// The buffer is too small.
Dec 18 13:13:55.380 INFO [stderr] 18 | |         SmallBuffer { }
Dec 18 13:13:55.380 INFO [stderr] ...  |
Dec 18 13:13:55.380 INFO [stderr] 33 | |     }
Dec 18 13:13:55.380 INFO [stderr] 34 | | }
Dec 18 13:13:55.381 INFO [stderr]    | |_^
Dec 18 13:13:55.381 INFO [stderr]    |
Dec 18 13:13:55.381 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 18 13:13:55.381 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 13:13:55.381 INFO [stderr] 
Dec 18 13:13:55.381 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 13:13:55.381 INFO [stderr]   --> src/error.rs:15:1
Dec 18 13:13:55.381 INFO [stderr]    |
Dec 18 13:13:55.381 INFO [stderr] 15 | / error_chain! {
Dec 18 13:13:55.381 INFO [stderr] 16 | |     errors {
Dec 18 13:13:55.381 INFO [stderr] 17 | |         /// The buffer is too small.
Dec 18 13:13:55.381 INFO [stderr] 18 | |         SmallBuffer { }
Dec 18 13:13:55.381 INFO [stderr] ...  |
Dec 18 13:13:55.381 INFO [stderr] 33 | |     }
Dec 18 13:13:55.381 INFO [stderr] 34 | | }
Dec 18 13:13:55.381 INFO [stderr]    | |_^
Dec 18 13:13:55.381 INFO [stderr]    |
Dec 18 13:13:55.381 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 13:13:55.381 INFO [stderr] 
Dec 18 13:13:55.576 INFO [stderr] warning: unused variable: `packet`
Dec 18 13:13:55.576 INFO [stderr]   --> src/tcp/mod.rs:53:22
Dec 18 13:13:55.576 INFO [stderr]    |
Dec 18 13:13:55.576 INFO [stderr] 53 |         ip::Packet::V6(ref packet) => {
Dec 18 13:13:55.576 INFO [stderr]    |                            ^^^^^^ help: consider using `_packet` instead
Dec 18 13:13:55.576 INFO [stderr]    |
Dec 18 13:13:55.576 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 13:13:55.576 INFO [stderr] 
Dec 18 13:13:55.576 INFO [stderr] warning: unused variable: `packet`
Dec 18 13:13:55.576 INFO [stderr]   --> src/udp/mod.rs:45:22
Dec 18 13:13:55.576 INFO [stderr]    |
Dec 18 13:13:55.576 INFO [stderr] 45 |         ip::Packet::V6(ref packet) => {
Dec 18 13:13:55.576 INFO [stderr]    |                            ^^^^^^ help: consider using `_packet` instead
Dec 18 13:13:55.580 INFO [stderr] 
Dec 18 13:13:55.692 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:13:55.692 INFO [stderr]    --> src/ip/v4/packet.rs:173:7
Dec 18 13:13:55.692 INFO [stderr]     |
Dec 18 13:13:55.692 INFO [stderr] 173 |         let mut buffer = self.buffer.as_mut();
Dec 18 13:13:55.692 INFO [stderr]     |             ----^^^^^^
Dec 18 13:13:55.692 INFO [stderr]     |             |
Dec 18 13:13:55.692 INFO [stderr]     |             help: remove this `mut`
Dec 18 13:13:55.692 INFO [stderr]     |
Dec 18 13:13:55.692 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 13:13:55.692 INFO [stderr] 
Dec 18 13:13:55.692 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:13:55.692 INFO [stderr]    --> src/ip/v4/packet.rs:174:7
Dec 18 13:13:55.692 INFO [stderr]     |
Dec 18 13:13:55.692 INFO [stderr] 174 |         let mut buffer = if buffer.len() < header + payload {
Dec 18 13:13:55.692 INFO [stderr]     |             ----^^^^^^
Dec 18 13:13:55.692 INFO [stderr]     |             |
Dec 18 13:13:55.692 INFO [stderr]     |             help: remove this `mut`
Dec 18 13:13:55.692 INFO [stderr] 
Dec 18 13:13:55.747 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 13:13:55.747 INFO [stderr]   --> src/error.rs:15:1
Dec 18 13:13:55.747 INFO [stderr]    |
Dec 18 13:13:55.747 INFO [stderr] 15 | / error_chain! {
Dec 18 13:13:55.747 INFO [stderr] 16 | |     errors {
Dec 18 13:13:55.747 INFO [stderr] 17 | |         /// The buffer is too small.
Dec 18 13:13:55.747 INFO [stderr] 18 | |         SmallBuffer { }
Dec 18 13:13:55.747 INFO [stderr] ...  |
Dec 18 13:13:55.747 INFO [stderr] 33 | |     }
Dec 18 13:13:55.747 INFO [stderr] 34 | | }
Dec 18 13:13:55.747 INFO [stderr]    | |_^
Dec 18 13:13:55.747 INFO [stderr]    |
Dec 18 13:13:55.747 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 18 13:13:55.747 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 13:13:55.747 INFO [stderr] 
Dec 18 13:13:55.747 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 13:13:55.747 INFO [stderr]   --> src/error.rs:15:1
Dec 18 13:13:55.747 INFO [stderr]    |
Dec 18 13:13:55.747 INFO [stderr] 15 | / error_chain! {
Dec 18 13:13:55.747 INFO [stderr] 16 | |     errors {
Dec 18 13:13:55.747 INFO [stderr] 17 | |         /// The buffer is too small.
Dec 18 13:13:55.747 INFO [stderr] 18 | |         SmallBuffer { }
Dec 18 13:13:55.747 INFO [stderr] ...  |
Dec 18 13:13:55.747 INFO [stderr] 33 | |     }
Dec 18 13:13:55.747 INFO [stderr] 34 | | }
Dec 18 13:13:55.747 INFO [stderr]    | |_^
Dec 18 13:13:55.747 INFO [stderr]    |
Dec 18 13:13:55.748 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 13:13:55.748 INFO [stderr] 
Dec 18 13:13:55.864 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:13:55.864 INFO [stderr]    --> src/udp/packet.rs:154:7
Dec 18 13:13:55.864 INFO [stderr]     |
Dec 18 13:13:55.864 INFO [stderr] 154 |         let mut buffer = self.buffer.as_mut();
Dec 18 13:13:55.864 INFO [stderr]     |             ----^^^^^^
Dec 18 13:13:55.864 INFO [stderr]     |             |
Dec 18 13:13:55.864 INFO [stderr]     |             help: remove this `mut`
Dec 18 13:13:55.865 INFO [stderr] 
Dec 18 13:13:55.865 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:13:55.865 INFO [stderr]    --> src/udp/packet.rs:155:7
Dec 18 13:13:55.866 INFO [stderr]     |
Dec 18 13:13:55.866 INFO [stderr] 155 |         let mut buffer = if buffer.len() < header + payload {
Dec 18 13:13:55.866 INFO [stderr]     |             ----^^^^^^
Dec 18 13:13:55.866 INFO [stderr]     |             |
Dec 18 13:13:55.866 INFO [stderr]     |             help: remove this `mut`
Dec 18 13:13:55.866 INFO [stderr] 
Dec 18 13:13:55.931 INFO [stderr] warning: field is never used: `buffer`
Dec 18 13:13:55.931 INFO [stderr]   --> src/ip/v6/builder.rs:24:2
Dec 18 13:13:55.931 INFO [stderr]    |
Dec 18 13:13:55.931 INFO [stderr] 24 |     buffer:    B,
Dec 18 13:13:55.932 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 18 13:13:55.932 INFO [stderr]    |
Dec 18 13:13:55.932 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 13:13:55.936 INFO [stderr] 
Dec 18 13:13:55.960 INFO [stderr] warning: unused variable: `packet`
Dec 18 13:13:55.960 INFO [stderr]   --> src/tcp/mod.rs:53:22
Dec 18 13:13:55.960 INFO [stderr]    |
Dec 18 13:13:55.960 INFO [stderr] 53 |         ip::Packet::V6(ref packet) => {
Dec 18 13:13:55.961 INFO [stderr]    |                            ^^^^^^ help: consider using `_packet` instead
Dec 18 13:13:55.961 INFO [stderr]    |
Dec 18 13:13:55.961 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 13:13:55.961 INFO [stderr] 
Dec 18 13:13:55.961 INFO [stderr] warning: unused variable: `packet`
Dec 18 13:13:55.961 INFO [stderr]   --> src/udp/mod.rs:45:22
Dec 18 13:13:55.961 INFO [stderr]    |
Dec 18 13:13:55.961 INFO [stderr] 45 |         ip::Packet::V6(ref packet) => {
Dec 18 13:13:55.961 INFO [stderr]    |                            ^^^^^^ help: consider using `_packet` instead
Dec 18 13:13:55.961 INFO [stderr] 
Dec 18 13:13:56.109 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:13:56.109 INFO [stderr]    --> src/ip/v4/packet.rs:173:7
Dec 18 13:13:56.109 INFO [stderr]     |
Dec 18 13:13:56.109 INFO [stderr] 173 |         let mut buffer = self.buffer.as_mut();
Dec 18 13:13:56.109 INFO [stderr]     |             ----^^^^^^
Dec 18 13:13:56.109 INFO [stderr]     |             |
Dec 18 13:13:56.109 INFO [stderr]     |             help: remove this `mut`
Dec 18 13:13:56.109 INFO [stderr]     |
Dec 18 13:13:56.109 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 13:13:56.109 INFO [stderr] 
Dec 18 13:13:56.109 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:13:56.109 INFO [stderr]    --> src/ip/v4/packet.rs:174:7
Dec 18 13:13:56.109 INFO [stderr]     |
Dec 18 13:13:56.109 INFO [stderr] 174 |         let mut buffer = if buffer.len() < header + payload {
Dec 18 13:13:56.109 INFO [stderr]     |             ----^^^^^^
Dec 18 13:13:56.109 INFO [stderr]     |             |
Dec 18 13:13:56.109 INFO [stderr]     |             help: remove this `mut`
Dec 18 13:13:56.109 INFO [stderr] 
Dec 18 13:13:56.294 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:13:56.294 INFO [stderr]    --> src/tcp/packet.rs:427:12
Dec 18 13:13:56.294 INFO [stderr]     |
Dec 18 13:13:56.294 INFO [stderr] 427 |         let (ip, mut tcp) = ip.split_mut();
Dec 18 13:13:56.294 INFO [stderr]     |                  ----^^^
Dec 18 13:13:56.294 INFO [stderr]     |                  |
Dec 18 13:13:56.294 INFO [stderr]     |                  help: remove this `mut`
Dec 18 13:13:56.294 INFO [stderr] 
Dec 18 13:13:56.332 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:13:56.332 INFO [stderr]    --> src/udp/packet.rs:154:7
Dec 18 13:13:56.332 INFO [stderr]     |
Dec 18 13:13:56.332 INFO [stderr] 154 |         let mut buffer = self.buffer.as_mut();
Dec 18 13:13:56.332 INFO [stderr]     |             ----^^^^^^
Dec 18 13:13:56.332 INFO [stderr]     |             |
Dec 18 13:13:56.332 INFO [stderr]     |             help: remove this `mut`
Dec 18 13:13:56.332 INFO [stderr] 
Dec 18 13:13:56.332 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:13:56.332 INFO [stderr]    --> src/udp/packet.rs:155:7
Dec 18 13:13:56.332 INFO [stderr]     |
Dec 18 13:13:56.332 INFO [stderr] 155 |         let mut buffer = if buffer.len() < header + payload {
Dec 18 13:13:56.332 INFO [stderr]     |             ----^^^^^^
Dec 18 13:13:56.332 INFO [stderr]     |             |
Dec 18 13:13:56.332 INFO [stderr]     |             help: remove this `mut`
Dec 18 13:13:56.332 INFO [stderr] 
Dec 18 13:13:56.340 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:13:56.340 INFO [stderr]    --> src/udp/packet.rs:316:12
Dec 18 13:13:56.340 INFO [stderr]     |
Dec 18 13:13:56.340 INFO [stderr] 316 |         let (ip, mut udp) = ip.split_mut();
Dec 18 13:13:56.340 INFO [stderr]     |                  ----^^^
Dec 18 13:13:56.340 INFO [stderr]     |                  |
Dec 18 13:13:56.340 INFO [stderr]     |                  help: remove this `mut`
Dec 18 13:13:56.340 INFO [stderr] 
Dec 18 13:13:56.424 INFO [stderr] warning: field is never used: `buffer`
Dec 18 13:13:56.424 INFO [stderr]   --> src/ip/v6/builder.rs:24:2
Dec 18 13:13:56.424 INFO [stderr]    |
Dec 18 13:13:56.424 INFO [stderr] 24 |     buffer:    B,
Dec 18 13:13:56.424 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 18 13:13:56.424 INFO [stderr]    |
Dec 18 13:13:56.424 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 13:13:56.424 INFO [stderr] 
Dec 18 13:13:56.505 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.34s
Dec 18 13:13:57.391 INFO running `"docker" "inspect" "290f34f5f1279a262896e62cbee4140a954f03c1a137b9dab0a9f605ee05f9fb"`
Dec 18 13:13:57.652 INFO running `"docker" "rm" "-f" "290f34f5f1279a262896e62cbee4140a954f03c1a137b9dab0a9f605ee05f9fb"`
Dec 18 13:13:57.940 INFO [stdout] 290f34f5f1279a262896e62cbee4140a954f03c1a137b9dab0a9f605ee05f9fb