[INFO] fetching crate rsmnl 0.1.0...
[INFO] building rsmnl-0.1.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate rsmnl 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate rsmnl 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rsmnl 0.1.0
[INFO] tweaked toml for crates.io crate rsmnl 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rsmnl 0.1.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rsmnl 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded errno v0.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2186a47b871e3159b97e3f1b20c720a3db13d60cc706784da05981ea20d9c755
[INFO] running `Command { std: "docker" "start" "-a" "2186a47b871e3159b97e3f1b20c720a3db13d60cc706784da05981ea20d9c755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2186a47b871e3159b97e3f1b20c720a3db13d60cc706784da05981ea20d9c755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2186a47b871e3159b97e3f1b20c720a3db13d60cc706784da05981ea20d9c755", kill_on_drop: false }`
[INFO] [stdout] 2186a47b871e3159b97e3f1b20c720a3db13d60cc706784da05981ea20d9c755
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e4358b5af59cf07cef886882e15d4d0ef1827346c69ce3ff7b49da08a817461
[INFO] running `Command { std: "docker" "start" "-a" "3e4358b5af59cf07cef886882e15d4d0ef1827346c69ce3ff7b49da08a817461", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling errno v0.2.7
[INFO] [stderr]    Compiling rsmnl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/msgvec.rs:113:23
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn put_header(&mut self) -> &mut Header {
[INFO] [stdout]     |                       ^^^^^^^^^     ^^^^^^^^^^^
[INFO] [stdout]     |                       |             |    |
[INFO] [stdout]     |                       |             |    the same lifetime is hidden here
[INFO] [stdout]     |                       |             the same lifetime is elided here
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn put_header(&mut self) -> &mut Header<'_> {
[INFO] [stdout]     |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/msgvec.rs:343:19
[INFO] [stdout]     |
[INFO] [stdout] 343 |     pub fn header(&self) -> Result<&Header> {
[INFO] [stdout]     |                   ^^^^^            ^^^^^^^
[INFO] [stdout]     |                   |                ||
[INFO] [stdout]     |                   |                |the same lifetime is hidden here
[INFO] [stdout]     |                   |                the same lifetime is elided here
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 343 |     pub fn header(&self) -> Result<&Header<'_>> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/msgvec.rs:355:19
[INFO] [stdout]     |
[INFO] [stdout] 355 |     pub fn msghdr(&self) -> Result<&Msghdr> {
[INFO] [stdout]     |                   ^^^^^            ^^^^^^^
[INFO] [stdout]     |                   |                ||
[INFO] [stdout]     |                   |                |the same lifetime is hidden here
[INFO] [stdout]     |                   |                the same lifetime is elided here
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 355 |     pub fn msghdr(&self) -> Result<&Msghdr<'_>> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `Command { std: "docker" "inspect" "3e4358b5af59cf07cef886882e15d4d0ef1827346c69ce3ff7b49da08a817461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e4358b5af59cf07cef886882e15d4d0ef1827346c69ce3ff7b49da08a817461", kill_on_drop: false }`
[INFO] [stdout] 3e4358b5af59cf07cef886882e15d4d0ef1827346c69ce3ff7b49da08a817461
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 864fdcf7d1153027b1e41dcc6b4ba1ba2babf05df95a309815c47405c721dae9
[INFO] running `Command { std: "docker" "start" "-a" "864fdcf7d1153027b1e41dcc6b4ba1ba2babf05df95a309815c47405c721dae9", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/msgvec.rs:113:23
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn put_header(&mut self) -> &mut Header {
[INFO] [stdout]     |                       ^^^^^^^^^     ^^^^^^^^^^^
[INFO] [stdout]     |                       |             |    |
[INFO] [stdout]     |                       |             |    the same lifetime is hidden here
[INFO] [stdout]     |                       |             the same lifetime is elided here
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn put_header(&mut self) -> &mut Header<'_> {
[INFO] [stdout]     |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/msgvec.rs:343:19
[INFO] [stdout]     |
[INFO] [stdout] 343 |     pub fn header(&self) -> Result<&Header> {
[INFO] [stdout]     |                   ^^^^^            ^^^^^^^
[INFO] [stdout]     |                   |                ||
[INFO] [stdout]     |                   |                |the same lifetime is hidden here
[INFO] [stdout]     |                   |                the same lifetime is elided here
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 343 |     pub fn header(&self) -> Result<&Header<'_>> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/msgvec.rs:355:19
[INFO] [stdout]     |
[INFO] [stdout] 355 |     pub fn msghdr(&self) -> Result<&Msghdr> {
[INFO] [stdout]     |                   ^^^^^            ^^^^^^^
[INFO] [stdout]     |                   |                ||
[INFO] [stdout]     |                   |                |the same lifetime is hidden here
[INFO] [stdout]     |                   |                the same lifetime is elided here
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 355 |     pub fn msghdr(&self) -> Result<&Msghdr<'_>> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rsmnl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-link-set.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/msgvec.rs:113:23
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn put_header(&mut self) -> &mut Header {
[INFO] [stdout]     |                       ^^^^^^^^^     ^^^^^^^^^^^
[INFO] [stdout]     |                       |             |    |
[INFO] [stdout]     |                       |             |    the same lifetime is hidden here
[INFO] [stdout]     |                       |             the same lifetime is elided here
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn put_header(&mut self) -> &mut Header<'_> {
[INFO] [stdout]     |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/msgvec.rs:343:19
[INFO] [stdout]     |
[INFO] [stdout] 343 |     pub fn header(&self) -> Result<&Header> {
[INFO] [stdout]     |                   ^^^^^            ^^^^^^^
[INFO] [stdout]     |                   |                ||
[INFO] [stdout]     |                   |                |the same lifetime is hidden here
[INFO] [stdout]     |                   |                the same lifetime is elided here
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 343 |     pub fn header(&self) -> Result<&Header<'_>> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/msgvec.rs:355:19
[INFO] [stdout]     |
[INFO] [stdout] 355 |     pub fn msghdr(&self) -> Result<&Msghdr> {
[INFO] [stdout]     |                   ^^^^^            ^^^^^^^
[INFO] [stdout]     |                   |                ||
[INFO] [stdout]     |                   |                |the same lifetime is hidden here
[INFO] [stdout]     |                   |                the same lifetime is elided here
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 355 |     pub fn msghdr(&self) -> Result<&Msghdr<'_>> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> tests/lib.rs:51:23
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn bytes2nlmsg(bytes: &[u8]) -> &Msghdr {
[INFO] [stdout]    |                       ^^^^^     ^^^^^^^
[INFO] [stdout]    |                       |         ||
[INFO] [stdout]    |                       |         |the same lifetime is hidden here
[INFO] [stdout]    |                       |         the same lifetime is elided here
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn bytes2nlmsg(bytes: &[u8]) -> &Msghdr<'_> {
[INFO] [stdout]    |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-neigh-dump.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-neigh-dump.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |     let mut rt = nlv.put_extra_header::<linux::rtgenmsg>().unwrap();
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/netfilter/nf-queue.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/netfilter/nf-queue.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/netfilter/nf-queue.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/netfilter/nf-queue.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |     let mut nlh = nlv.put_header();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-route-add.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/rtnl/rtnl-route-dump.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |     let mut nlh = nlv.put_header();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-addr-dump.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/netfilter/nfct-dump.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |     let mut nlh = nlv.put_header();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/netfilter/nfct-daemon.rs:185:9
[INFO] [stdout]     |
[INFO] [stdout] 185 |     let mut nlh = nlv.put_header();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `into_raw_fd` that must be used
[INFO] [stdout]    --> examples/netfilter/nfct-create-batch.rs:142:13
[INFO] [stdout]     |
[INFO] [stdout] 142 |             listener.into_raw_fd();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the raw file descriptor may leak resources
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 142 |             let _ = listener.into_raw_fd();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-link-dump3.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/genl/genl-family-get.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let mut nlh = nlv.put_header();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/netfilter/nf-log.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/netfilter/nf-log.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/netfilter/nf-log.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-link-dump.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-addr-add.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-addr-add.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let mut ifm = nlv.put_extra_header::<linux::ifaddrmsg>().unwrap();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-link-dump2.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.34s
[INFO] running `Command { std: "docker" "inspect" "864fdcf7d1153027b1e41dcc6b4ba1ba2babf05df95a309815c47405c721dae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "864fdcf7d1153027b1e41dcc6b4ba1ba2babf05df95a309815c47405c721dae9", kill_on_drop: false }`
[INFO] [stdout] 864fdcf7d1153027b1e41dcc6b4ba1ba2babf05df95a309815c47405c721dae9