Dec 07 05:09:06.016 INFO testing packet-0.1.2 against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 07 05:09:06.016 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt build --frozen" "-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 07 05:09:06.248 INFO [stdout] 15973e821265a1fb8e27810819a84f3933539820e24f04bb965161d11e49c518
Dec 07 05:09:06.250 INFO running `"docker" "start" "-a" "15973e821265a1fb8e27810819a84f3933539820e24f04bb965161d11e49c518"`
Dec 07 05:09:07.864 INFO [stderr] usermod: no changes
Dec 07 05:09:08.345 INFO [stderr]    Compiling hwaddr v0.1.5
Dec 07 05:09:21.060 INFO [stderr]    Compiling packet v0.1.2 (/source)
Dec 07 05:09:21.782 INFO [stderr] warning: unnecessary parentheses around method argument
Dec 07 05:09:21.782 INFO [stderr]   --> src/ip/v4/packet.rs:43:51
Dec 07 05:09:21.782 INFO [stderr]    |
Dec 07 05:09:21.782 INFO [stderr] 43 |         size: p => (p.length() as usize).saturating_sub((p.header() as usize * 4)),
Dec 07 05:09:21.782 INFO [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 07 05:09:21.782 INFO [stderr]    |
Dec 07 05:09:21.782 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 07 05:09:21.782 INFO [stderr] 
Dec 07 05:09:21.782 INFO [stderr] warning: unused import: `std::net::Ipv4Addr`
Dec 07 05:09:21.782 INFO [stderr]   --> src/ip/v6/packet.rs:16:5
Dec 07 05:09:21.782 INFO [stderr]    |
Dec 07 05:09:21.782 INFO [stderr] 16 | use std::net::Ipv4Addr;
Dec 07 05:09:21.782 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 07 05:09:21.782 INFO [stderr]    |
Dec 07 05:09:21.782 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 07 05:09:21.782 INFO [stderr] 
Dec 07 05:09:21.782 INFO [stderr] warning: unused imports: `BigEndian`, `ReadBytesExt`
Dec 07 05:09:21.782 INFO [stderr]   --> src/ip/v6/packet.rs:17:17
Dec 07 05:09:21.782 INFO [stderr]    |
Dec 07 05:09:21.782 INFO [stderr] 17 | use byteorder::{ReadBytesExt, BigEndian};
Dec 07 05:09:21.782 INFO [stderr]    |                 ^^^^^^^^^^^^  ^^^^^^^^^
Dec 07 05:09:21.782 INFO [stderr] 
Dec 07 05:09:21.782 INFO [stderr] warning: unused import: `size`
Dec 07 05:09:21.782 INFO [stderr]   --> src/ip/v6/packet.rs:20:5
Dec 07 05:09:21.782 INFO [stderr]    |
Dec 07 05:09:21.782 INFO [stderr] 20 | use size;
Dec 07 05:09:21.782 INFO [stderr]    |     ^^^^
Dec 07 05:09:21.782 INFO [stderr] 
Dec 07 05:09:21.782 INFO [stderr] warning: unused import: `ip::Protocol`
Dec 07 05:09:21.782 INFO [stderr]   --> src/ip/v6/packet.rs:22:5
Dec 07 05:09:21.782 INFO [stderr]    |
Dec 07 05:09:21.782 INFO [stderr] 22 | use ip::Protocol;
Dec 07 05:09:21.782 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 07 05:09:21.782 INFO [stderr] 
Dec 07 05:09:21.782 INFO [stderr] warning: unused import: `ip::v4::Flags`
Dec 07 05:09:21.782 INFO [stderr]   --> src/ip/v6/packet.rs:23:5
Dec 07 05:09:21.782 INFO [stderr]    |
Dec 07 05:09:21.782 INFO [stderr] 23 | use ip::v4::Flags;
Dec 07 05:09:21.782 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 07 05:09:21.782 INFO [stderr] 
Dec 07 05:09:21.786 INFO [stderr] warning: unused import: `ip::v4::option`
Dec 07 05:09:21.786 INFO [stderr]   --> src/ip/v6/packet.rs:24:5
Dec 07 05:09:21.786 INFO [stderr]    |
Dec 07 05:09:21.786 INFO [stderr] 24 | use ip::v4::option;
Dec 07 05:09:21.786 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 07 05:09:21.786 INFO [stderr] 
Dec 07 05:09:21.786 INFO [stderr] warning: unused import: `ip::v4::checksum`
Dec 07 05:09:21.786 INFO [stderr]   --> src/ip/v6/packet.rs:25:5
Dec 07 05:09:21.786 INFO [stderr]    |
Dec 07 05:09:21.786 INFO [stderr] 25 | use ip::v4::checksum;
Dec 07 05:09:21.786 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 07 05:09:21.786 INFO [stderr] 
Dec 07 05:09:21.786 INFO [stderr] warning: unused import: `std::io::Cursor`
Dec 07 05:09:21.786 INFO [stderr]   --> src/ip/v6/builder.rs:15:5
Dec 07 05:09:21.787 INFO [stderr]    |
Dec 07 05:09:21.787 INFO [stderr] 15 | use std::io::Cursor;
Dec 07 05:09:21.787 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 07 05:09:21.787 INFO [stderr] 
Dec 07 05:09:21.787 INFO [stderr] warning: unused imports: `BigEndian`, `WriteBytesExt`
Dec 07 05:09:21.787 INFO [stderr]   --> src/ip/v6/builder.rs:16:17
Dec 07 05:09:21.787 INFO [stderr]    |
Dec 07 05:09:21.787 INFO [stderr] 16 | use byteorder::{WriteBytesExt, BigEndian};
Dec 07 05:09:21.787 INFO [stderr]    |                 ^^^^^^^^^^^^^  ^^^^^^^^^
Dec 07 05:09:21.787 INFO [stderr] 
Dec 07 05:09:22.648 INFO [stderr] warning: unused variable: `packet`
Dec 07 05:09:22.648 INFO [stderr]   --> src/tcp/mod.rs:53:22
Dec 07 05:09:22.648 INFO [stderr]    |
Dec 07 05:09:22.648 INFO [stderr] 53 |         ip::Packet::V6(ref packet) => {
Dec 07 05:09:22.648 INFO [stderr]    |                            ^^^^^^ help: consider using `_packet` instead
Dec 07 05:09:22.648 INFO [stderr]    |
Dec 07 05:09:22.648 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 07 05:09:22.648 INFO [stderr] 
Dec 07 05:09:22.648 INFO [stderr] warning: unused variable: `packet`
Dec 07 05:09:22.648 INFO [stderr]   --> src/udp/mod.rs:45:22
Dec 07 05:09:22.648 INFO [stderr]    |
Dec 07 05:09:22.648 INFO [stderr] 45 |         ip::Packet::V6(ref packet) => {
Dec 07 05:09:22.648 INFO [stderr]    |                            ^^^^^^ help: consider using `_packet` instead
Dec 07 05:09:22.648 INFO [stderr] 
Dec 07 05:09:22.740 INFO [stderr] warning: variable does not need to be mutable
Dec 07 05:09:22.740 INFO [stderr]    --> src/ip/v4/packet.rs:173:7
Dec 07 05:09:22.742 INFO [stderr]     |
Dec 07 05:09:22.742 INFO [stderr] 173 |         let mut buffer = self.buffer.as_mut();
Dec 07 05:09:22.742 INFO [stderr]     |             ----^^^^^^
Dec 07 05:09:22.742 INFO [stderr]     |             |
Dec 07 05:09:22.742 INFO [stderr]     |             help: remove this `mut`
Dec 07 05:09:22.742 INFO [stderr]     |
Dec 07 05:09:22.742 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 07 05:09:22.742 INFO [stderr] 
Dec 07 05:09:22.742 INFO [stderr] warning: variable does not need to be mutable
Dec 07 05:09:22.742 INFO [stderr]    --> src/ip/v4/packet.rs:174:7
Dec 07 05:09:22.742 INFO [stderr]     |
Dec 07 05:09:22.742 INFO [stderr] 174 |         let mut buffer = if buffer.len() < header + payload {
Dec 07 05:09:22.742 INFO [stderr]     |             ----^^^^^^
Dec 07 05:09:22.742 INFO [stderr]     |             |
Dec 07 05:09:22.742 INFO [stderr]     |             help: remove this `mut`
Dec 07 05:09:22.742 INFO [stderr] 
Dec 07 05:09:22.888 INFO [stderr] warning: variable does not need to be mutable
Dec 07 05:09:22.888 INFO [stderr]    --> src/udp/packet.rs:154:7
Dec 07 05:09:22.888 INFO [stderr]     |
Dec 07 05:09:22.888 INFO [stderr] 154 |         let mut buffer = self.buffer.as_mut();
Dec 07 05:09:22.888 INFO [stderr]     |             ----^^^^^^
Dec 07 05:09:22.888 INFO [stderr]     |             |
Dec 07 05:09:22.888 INFO [stderr]     |             help: remove this `mut`
Dec 07 05:09:22.888 INFO [stderr] 
Dec 07 05:09:22.888 INFO [stderr] warning: variable does not need to be mutable
Dec 07 05:09:22.888 INFO [stderr]    --> src/udp/packet.rs:155:7
Dec 07 05:09:22.888 INFO [stderr]     |
Dec 07 05:09:22.888 INFO [stderr] 155 |         let mut buffer = if buffer.len() < header + payload {
Dec 07 05:09:22.888 INFO [stderr]     |             ----^^^^^^
Dec 07 05:09:22.888 INFO [stderr]     |             |
Dec 07 05:09:22.888 INFO [stderr]     |             help: remove this `mut`
Dec 07 05:09:22.888 INFO [stderr] 
Dec 07 05:09:22.948 INFO [stderr] warning: field is never used: `buffer`
Dec 07 05:09:22.948 INFO [stderr]   --> src/ip/v6/builder.rs:24:2
Dec 07 05:09:22.948 INFO [stderr]    |
Dec 07 05:09:22.948 INFO [stderr] 24 |     buffer:    B,
Dec 07 05:09:22.948 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 07 05:09:22.948 INFO [stderr]    |
Dec 07 05:09:22.948 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 07 05:09:22.948 INFO [stderr] 
Dec 07 05:09:23.444 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.55s
Dec 07 05:09:23.454 INFO [stderr] su: No module specific data is present
Dec 07 05:09:23.776 INFO running `"docker" "inspect" "15973e821265a1fb8e27810819a84f3933539820e24f04bb965161d11e49c518"`
Dec 07 05:09:23.886 INFO running `"docker" "rm" "-f" "15973e821265a1fb8e27810819a84f3933539820e24f04bb965161d11e49c518"`
Dec 07 05:09:24.069 INFO [stdout] 15973e821265a1fb8e27810819a84f3933539820e24f04bb965161d11e49c518
Dec 07 05:09:24.074 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt test --frozen --no-run" "-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 07 05:09:24.480 INFO [stdout] 59ba2cae108d20d936daf67834be1415e7dc0b2c74eead3fb3c8207bde27bdfb
Dec 07 05:09:24.482 INFO running `"docker" "start" "-a" "59ba2cae108d20d936daf67834be1415e7dc0b2c74eead3fb3c8207bde27bdfb"`
Dec 07 05:09:25.747 INFO [stderr] usermod: no changes
Dec 07 05:09:26.062 INFO [stderr]    Compiling packet v0.1.2 (/source)
Dec 07 05:09:27.388 INFO [stderr] warning: unnecessary parentheses around method argument
Dec 07 05:09:27.388 INFO [stderr]   --> src/ip/v4/packet.rs:43:51
Dec 07 05:09:27.388 INFO [stderr]    |
Dec 07 05:09:27.388 INFO [stderr] 43 |         size: p => (p.length() as usize).saturating_sub((p.header() as usize * 4)),
Dec 07 05:09:27.388 INFO [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 07 05:09:27.388 INFO [stderr]    |
Dec 07 05:09:27.388 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 07 05:09:27.388 INFO [stderr] 
Dec 07 05:09:27.388 INFO [stderr] warning: unused import: `std::net::Ipv4Addr`
Dec 07 05:09:27.388 INFO [stderr]   --> src/ip/v6/packet.rs:16:5
Dec 07 05:09:27.388 INFO [stderr]    |
Dec 07 05:09:27.389 INFO [stderr] 16 | use std::net::Ipv4Addr;
Dec 07 05:09:27.389 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 07 05:09:27.389 INFO [stderr]    |
Dec 07 05:09:27.389 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 07 05:09:27.389 INFO [stderr] 
Dec 07 05:09:27.389 INFO [stderr] warning: unused imports: `BigEndian`, `ReadBytesExt`
Dec 07 05:09:27.389 INFO [stderr]   --> src/ip/v6/packet.rs:17:17
Dec 07 05:09:27.389 INFO [stderr]    |
Dec 07 05:09:27.389 INFO [stderr] 17 | use byteorder::{ReadBytesExt, BigEndian};
Dec 07 05:09:27.389 INFO [stderr]    |                 ^^^^^^^^^^^^  ^^^^^^^^^
Dec 07 05:09:27.389 INFO [stderr] 
Dec 07 05:09:27.389 INFO [stderr] warning: unused import: `size`
Dec 07 05:09:27.389 INFO [stderr]   --> src/ip/v6/packet.rs:20:5
Dec 07 05:09:27.389 INFO [stderr]    |
Dec 07 05:09:27.389 INFO [stderr] 20 | use size;
Dec 07 05:09:27.389 INFO [stderr]    |     ^^^^
Dec 07 05:09:27.389 INFO [stderr] 
Dec 07 05:09:27.389 INFO [stderr] warning: unused import: `ip::Protocol`
Dec 07 05:09:27.389 INFO [stderr]   --> src/ip/v6/packet.rs:22:5
Dec 07 05:09:27.389 INFO [stderr]    |
Dec 07 05:09:27.389 INFO [stderr] 22 | use ip::Protocol;
Dec 07 05:09:27.389 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 07 05:09:27.389 INFO [stderr] 
Dec 07 05:09:27.389 INFO [stderr] warning: unused import: `ip::v4::Flags`
Dec 07 05:09:27.389 INFO [stderr]   --> src/ip/v6/packet.rs:23:5
Dec 07 05:09:27.389 INFO [stderr]    |
Dec 07 05:09:27.389 INFO [stderr] 23 | use ip::v4::Flags;
Dec 07 05:09:27.389 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 07 05:09:27.389 INFO [stderr] 
Dec 07 05:09:27.389 INFO [stderr] warning: unused import: `ip::v4::option`
Dec 07 05:09:27.389 INFO [stderr]   --> src/ip/v6/packet.rs:24:5
Dec 07 05:09:27.389 INFO [stderr]    |
Dec 07 05:09:27.389 INFO [stderr] 24 | use ip::v4::option;
Dec 07 05:09:27.389 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 07 05:09:27.389 INFO [stderr] 
Dec 07 05:09:27.389 INFO [stderr] warning: unused import: `ip::v4::checksum`
Dec 07 05:09:27.389 INFO [stderr]   --> src/ip/v6/packet.rs:25:5
Dec 07 05:09:27.389 INFO [stderr]    |
Dec 07 05:09:27.389 INFO [stderr] 25 | use ip::v4::checksum;
Dec 07 05:09:27.389 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 07 05:09:27.389 INFO [stderr] 
Dec 07 05:09:27.389 INFO [stderr] warning: unused import: `std::io::Cursor`
Dec 07 05:09:27.389 INFO [stderr]   --> src/ip/v6/builder.rs:15:5
Dec 07 05:09:27.389 INFO [stderr]    |
Dec 07 05:09:27.389 INFO [stderr] 15 | use std::io::Cursor;
Dec 07 05:09:27.389 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 07 05:09:27.389 INFO [stderr] 
Dec 07 05:09:27.389 INFO [stderr] warning: unused imports: `BigEndian`, `WriteBytesExt`
Dec 07 05:09:27.389 INFO [stderr]   --> src/ip/v6/builder.rs:16:17
Dec 07 05:09:27.389 INFO [stderr]    |
Dec 07 05:09:27.389 INFO [stderr] 16 | use byteorder::{WriteBytesExt, BigEndian};
Dec 07 05:09:27.389 INFO [stderr]    |                 ^^^^^^^^^^^^^  ^^^^^^^^^
Dec 07 05:09:27.389 INFO [stderr] 
Dec 07 05:09:28.656 INFO [stderr] warning: unused variable: `packet`
Dec 07 05:09:28.656 INFO [stderr]   --> src/tcp/mod.rs:53:22
Dec 07 05:09:28.656 INFO [stderr]    |
Dec 07 05:09:28.656 INFO [stderr] 53 |         ip::Packet::V6(ref packet) => {
Dec 07 05:09:28.656 INFO [stderr]    |                            ^^^^^^ help: consider using `_packet` instead
Dec 07 05:09:28.656 INFO [stderr]    |
Dec 07 05:09:28.656 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 07 05:09:28.656 INFO [stderr] 
Dec 07 05:09:28.656 INFO [stderr] warning: unused variable: `packet`
Dec 07 05:09:28.656 INFO [stderr]   --> src/udp/mod.rs:45:22
Dec 07 05:09:28.656 INFO [stderr]    |
Dec 07 05:09:28.656 INFO [stderr] 45 |         ip::Packet::V6(ref packet) => {
Dec 07 05:09:28.656 INFO [stderr]    |                            ^^^^^^ help: consider using `_packet` instead
Dec 07 05:09:28.656 INFO [stderr] 
Dec 07 05:09:28.784 INFO [stderr] warning: variable does not need to be mutable
Dec 07 05:09:28.784 INFO [stderr]    --> src/ip/v4/packet.rs:173:7
Dec 07 05:09:28.784 INFO [stderr]     |
Dec 07 05:09:28.784 INFO [stderr] 173 |         let mut buffer = self.buffer.as_mut();
Dec 07 05:09:28.784 INFO [stderr]     |             ----^^^^^^
Dec 07 05:09:28.784 INFO [stderr]     |             |
Dec 07 05:09:28.784 INFO [stderr]     |             help: remove this `mut`
Dec 07 05:09:28.784 INFO [stderr]     |
Dec 07 05:09:28.784 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 07 05:09:28.784 INFO [stderr] 
Dec 07 05:09:28.784 INFO [stderr] warning: variable does not need to be mutable
Dec 07 05:09:28.785 INFO [stderr]    --> src/ip/v4/packet.rs:174:7
Dec 07 05:09:28.785 INFO [stderr]     |
Dec 07 05:09:28.785 INFO [stderr] 174 |         let mut buffer = if buffer.len() < header + payload {
Dec 07 05:09:28.785 INFO [stderr]     |             ----^^^^^^
Dec 07 05:09:28.785 INFO [stderr]     |             |
Dec 07 05:09:28.785 INFO [stderr]     |             help: remove this `mut`
Dec 07 05:09:28.785 INFO [stderr] 
Dec 07 05:09:28.984 INFO [stderr] warning: variable does not need to be mutable
Dec 07 05:09:28.984 INFO [stderr]    --> src/tcp/packet.rs:427:12
Dec 07 05:09:28.984 INFO [stderr]     |
Dec 07 05:09:28.984 INFO [stderr] 427 |         let (ip, mut tcp) = ip.split_mut();
Dec 07 05:09:28.984 INFO [stderr]     |                  ----^^^
Dec 07 05:09:28.984 INFO [stderr]     |                  |
Dec 07 05:09:28.984 INFO [stderr]     |                  help: remove this `mut`
Dec 07 05:09:28.984 INFO [stderr] 
Dec 07 05:09:29.004 INFO [stderr] warning: variable does not need to be mutable
Dec 07 05:09:29.004 INFO [stderr]    --> src/udp/packet.rs:154:7
Dec 07 05:09:29.004 INFO [stderr]     |
Dec 07 05:09:29.004 INFO [stderr] 154 |         let mut buffer = self.buffer.as_mut();
Dec 07 05:09:29.004 INFO [stderr]     |             ----^^^^^^
Dec 07 05:09:29.004 INFO [stderr]     |             |
Dec 07 05:09:29.004 INFO [stderr]     |             help: remove this `mut`
Dec 07 05:09:29.004 INFO [stderr] 
Dec 07 05:09:29.004 INFO [stderr] warning: variable does not need to be mutable
Dec 07 05:09:29.004 INFO [stderr]    --> src/udp/packet.rs:155:7
Dec 07 05:09:29.004 INFO [stderr]     |
Dec 07 05:09:29.004 INFO [stderr] 155 |         let mut buffer = if buffer.len() < header + payload {
Dec 07 05:09:29.004 INFO [stderr]     |             ----^^^^^^
Dec 07 05:09:29.004 INFO [stderr]     |             |
Dec 07 05:09:29.004 INFO [stderr]     |             help: remove this `mut`
Dec 07 05:09:29.004 INFO [stderr] 
Dec 07 05:09:29.020 INFO [stderr] warning: variable does not need to be mutable
Dec 07 05:09:29.020 INFO [stderr]    --> src/udp/packet.rs:316:12
Dec 07 05:09:29.020 INFO [stderr]     |
Dec 07 05:09:29.020 INFO [stderr] 316 |         let (ip, mut udp) = ip.split_mut();
Dec 07 05:09:29.020 INFO [stderr]     |                  ----^^^
Dec 07 05:09:29.020 INFO [stderr]     |                  |
Dec 07 05:09:29.020 INFO [stderr]     |                  help: remove this `mut`
Dec 07 05:09:29.020 INFO [stderr] 
Dec 07 05:09:29.096 INFO [stderr] warning: field is never used: `buffer`
Dec 07 05:09:29.096 INFO [stderr]   --> src/ip/v6/builder.rs:24:2
Dec 07 05:09:29.096 INFO [stderr]    |
Dec 07 05:09:29.096 INFO [stderr] 24 |     buffer:    B,
Dec 07 05:09:29.096 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 07 05:09:29.096 INFO [stderr]    |
Dec 07 05:09:29.096 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 07 05:09:29.096 INFO [stderr] 
Dec 07 05:09:30.390 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.62s
Dec 07 05:09:30.400 INFO [stderr] su: No module specific data is present
Dec 07 05:09:30.898 INFO running `"docker" "inspect" "59ba2cae108d20d936daf67834be1415e7dc0b2c74eead3fb3c8207bde27bdfb"`
Dec 07 05:09:31.028 INFO running `"docker" "rm" "-f" "59ba2cae108d20d936daf67834be1415e7dc0b2c74eead3fb3c8207bde27bdfb"`
Dec 07 05:09:31.144 INFO [stdout] 59ba2cae108d20d936daf67834be1415e7dc0b2c74eead3fb3c8207bde27bdfb
Dec 07 05:09:31.146 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt test --frozen" "-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 07 05:09:31.424 INFO [stdout] ea0f165357e5226f050af0e73431d573ef62bdc2b2e8eedf72db5ab0ff76a745
Dec 07 05:09:31.426 INFO running `"docker" "start" "-a" "ea0f165357e5226f050af0e73431d573ef62bdc2b2e8eedf72db5ab0ff76a745"`
Dec 07 05:09:32.588 INFO [stderr] usermod: no changes
Dec 07 05:09:32.800 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
Dec 07 05:09:32.808 INFO [stderr]      Running /target/debug/deps/packet-d465b8a453f9f336
Dec 07 05:09:32.818 INFO [stdout] 
Dec 07 05:09:32.818 INFO [stdout] running 18 tests
Dec 07 05:09:32.836 INFO [stdout] test ether::builder::test::simple ... ok
Dec 07 05:09:32.836 INFO [stdout] test ether::packet::test::values ... ok
Dec 07 05:09:32.836 INFO [stdout] test icmp::builder::test::simple ... ok
Dec 07 05:09:32.837 INFO [stdout] test ip::v4::builder::test::icmp ... ok
Dec 07 05:09:32.837 INFO [stdout] test ip::v4::packet::test::owned ... ok
Dec 07 05:09:32.837 INFO [stdout] test ip::v4::builder::test::tcp ... ok
Dec 07 05:09:32.849 INFO [stdout] test ip::v4::packet::test::mutable ... ok
Dec 07 05:09:32.849 INFO [stdout] test ip::v4::packet::test::mutable_checked ... ok
Dec 07 05:09:32.849 INFO [stdout] test tcp::packet::test::mutable ... ok
Dec 07 05:09:32.849 INFO [stdout] test tcp::builder::test::simple ... ok
Dec 07 05:09:32.849 INFO [stdout] test tcp::packet::test::mutable_checked ... ok
Dec 07 05:09:32.865 INFO [stdout] test ip::v4::packet::test::values ... ok
Dec 07 05:09:32.865 INFO [stdout] test udp::packet::test::mutable_checked ... ok
Dec 07 05:09:32.865 INFO [stdout] test udp::packet::test::mutable ... ok
Dec 07 05:09:32.865 INFO [stdout] test tcp::packet::test::values ... ok
Dec 07 05:09:32.865 INFO [stdout] test udp::builder::test::simple ... ok
Dec 07 05:09:32.865 INFO [stdout] test udp::packet::test::values ... ok
Dec 07 05:09:33.004 INFO [stderr]    Doc-tests packet
Dec 07 05:09:33.004 INFO [stdout] test ip::v4::packet::test::short_packet ... ok
Dec 07 05:09:33.004 INFO [stdout] 
Dec 07 05:09:33.004 INFO [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 07 05:09:33.004 INFO [stdout] 
Dec 07 05:09:34.216 INFO [stdout] 
Dec 07 05:09:34.216 INFO [stdout] running 3 tests
Dec 07 05:09:37.380 INFO [stdout] test src/buffer/mod.rs - buffer::Buffer (line 25) ... ok
Dec 07 05:09:37.495 INFO [stdout] test src/packet.rs - packet::AsPacket (line 53) ... ok
Dec 07 05:09:37.930 INFO [stdout] test src/packet.rs - packet::AsPacketMut (line 71) ... ok
Dec 07 05:09:37.930 INFO [stdout] 
Dec 07 05:09:37.930 INFO [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 07 05:09:37.930 INFO [stdout] 
Dec 07 05:09:37.941 INFO [stderr] su: No module specific data is present
Dec 07 05:09:38.484 INFO running `"docker" "inspect" "ea0f165357e5226f050af0e73431d573ef62bdc2b2e8eedf72db5ab0ff76a745"`
Dec 07 05:09:38.692 INFO running `"docker" "rm" "-f" "ea0f165357e5226f050af0e73431d573ef62bdc2b2e8eedf72db5ab0ff76a745"`
Dec 07 05:09:38.934 INFO [stdout] ea0f165357e5226f050af0e73431d573ef62bdc2b2e8eedf72db5ab0ff76a745