[INFO] fetching crate ippacket 0.1.0...
[INFO] checking ippacket-0.1.0 against 52995a223f2919dd3e2e427231db90a257350ded for pr-129249-4
[INFO] extracting crate ippacket 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate ippacket 0.1.0
[INFO] finished tweaking crates.io crate ippacket 0.1.0
[INFO] tweaked toml for crates.io crate ippacket 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ippacket 0.1.0 on toolchain 52995a223f2919dd3e2e427231db90a257350ded
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to highest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c0af3998e971868164375a7dfb646c9933ddd1a3bdb00fa2041266763dc1eeab" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c4df97f15ad8641bf9be15ab8fb58728e5bdb026dc4156d13dc292341194028c
[INFO] running `Command { std: "docker" "start" "c4df97f15ad8641bf9be15ab8fb58728e5bdb026dc4156d13dc292341194028c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4df97f15ad8641bf9be15ab8fb58728e5bdb026dc4156d13dc292341194028c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c4df97f15ad8641bf9be15ab8fb58728e5bdb026dc4156d13dc292341194028c" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4df97f15ad8641bf9be15ab8fb58728e5bdb026dc4156d13dc292341194028c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c4df97f15ad8641bf9be15ab8fb58728e5bdb026dc4156d13dc292341194028c" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking ippacket v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/bytes.rs:187:24
[INFO] [stdout]     |
[INFO] [stdout] 184 | macro_rules! try_split {
[INFO] [stdout] ...
[INFO] [stdout] 187 |             return Err(::std::io::Error::new(::std::io::ErrorKind::UnexpectedEof, "").into());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/icmp.rs:183:25
[INFO] [stdout]     |
[INFO] [stdout] 183 |         let remaining = try_split!(header.0, IcmpHeader::len());
[INFO] [stdout]     |                         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<std::io::Error as Into<std::io::Error>::into(val) to avoid triggering this lint
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/bytes.rs:187:24
[INFO] [stdout]     |
[INFO] [stdout] 184 | macro_rules! try_split {
[INFO] [stdout] ...
[INFO] [stdout] 187 |             return Err(::std::io::Error::new(::std::io::ErrorKind::UnexpectedEof, "").into());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ip.rs:76:25
[INFO] [stdout]     |
[INFO] [stdout]  76 |         let remaining = try_split!(header.0, len);
[INFO] [stdout]     |                         ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<std::io::Error as Into<std::io::Error>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/bytes.rs:187:24
[INFO] [stdout]     |
[INFO] [stdout] 184 | macro_rules! try_split {
[INFO] [stdout] ...
[INFO] [stdout] 187 |             return Err(::std::io::Error::new(::std::io::ErrorKind::UnexpectedEof, "").into());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ip.rs:177:13
[INFO] [stdout]     |
[INFO] [stdout] 177 |             try_split!(header.0, Ipv6Header::len() + payload_len);
[INFO] [stdout]     |             ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<std::io::Error as Into<std::io::Error>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/bytes.rs:187:24
[INFO] [stdout]     |
[INFO] [stdout] 184 | macro_rules! try_split {
[INFO] [stdout] ...
[INFO] [stdout] 187 |             return Err(::std::io::Error::new(::std::io::ErrorKind::UnexpectedEof, "").into());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ip.rs:179:25
[INFO] [stdout]     |
[INFO] [stdout] 179 |         let remaining = try_split!(header.0, Ipv6Header::len());
[INFO] [stdout]     |                         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<std::io::Error as Into<std::io::Error>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/bytes.rs:187:24
[INFO] [stdout]     |
[INFO] [stdout] 184 | macro_rules! try_split {
[INFO] [stdout] ...
[INFO] [stdout] 187 |             return Err(::std::io::Error::new(::std::io::ErrorKind::UnexpectedEof, "").into());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ip.rs:371:25
[INFO] [stdout]     |
[INFO] [stdout] 371 |         let remaining = try_split!(opts.0, len);
[INFO] [stdout]     |                         ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<std::io::Error as Into<std::io::Error>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/bytes.rs:187:24
[INFO] [stdout]     |
[INFO] [stdout] 184 | macro_rules! try_split {
[INFO] [stdout] ...
[INFO] [stdout] 187 |             return Err(::std::io::Error::new(::std::io::ErrorKind::UnexpectedEof, "").into());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/tcp.rs:19:25
[INFO] [stdout]     |
[INFO] [stdout]  19 |         let remaining = try_split!(header.0, len);
[INFO] [stdout]     |                         ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<std::io::Error as Into<std::io::Error>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/bytes.rs:187:24
[INFO] [stdout]     |
[INFO] [stdout] 184 | macro_rules! try_split {
[INFO] [stdout] ...
[INFO] [stdout] 187 |             return Err(::std::io::Error::new(::std::io::ErrorKind::UnexpectedEof, "").into());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/udp.rs:15:27
[INFO] [stdout]     |
[INFO] [stdout]  15 |         let mut payload = try_split!(header.0, UdpHeader::len());
[INFO] [stdout]     |                           -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<std::io::Error as Into<std::io::Error>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/bytes.rs:187:24
[INFO] [stdout]     |
[INFO] [stdout] 184 | macro_rules! try_split {
[INFO] [stdout] ...
[INFO] [stdout] 187 |             return Err(::std::io::Error::new(::std::io::ErrorKind::UnexpectedEof, "").into());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/udp.rs:17:13
[INFO] [stdout]     |
[INFO] [stdout]  17 |             try_split!(payload, data_len);
[INFO] [stdout]     |             ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<std::io::Error as Into<std::io::Error>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bytes.rs:82:21
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn as_slice(&self) -> Ref<[u8]> {
[INFO] [stdout]    |                     ^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[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] 82 |     pub fn as_slice(&self) -> Ref<'_, [u8]> {
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bytes.rs:86:19
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn as_mut(&mut self) -> RefMut<[u8]> {
[INFO] [stdout]    |                   ^^^^^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[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] 86 |     pub fn as_mut(&mut self) -> RefMut<'_, [u8]> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ippacket` (lib test) due to 8 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/bytes.rs:187:24
[INFO] [stdout]     |
[INFO] [stdout] 184 | macro_rules! try_split {
[INFO] [stdout] ...
[INFO] [stdout] 187 |             return Err(::std::io::Error::new(::std::io::ErrorKind::UnexpectedEof, "").into());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/icmp.rs:183:25
[INFO] [stdout]     |
[INFO] [stdout] 183 |         let remaining = try_split!(header.0, IcmpHeader::len());
[INFO] [stdout]     |                         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<std::io::Error as Into<std::io::Error>::into(val) to avoid triggering this lint
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/bytes.rs:187:24
[INFO] [stdout]     |
[INFO] [stdout] 184 | macro_rules! try_split {
[INFO] [stdout] ...
[INFO] [stdout] 187 |             return Err(::std::io::Error::new(::std::io::ErrorKind::UnexpectedEof, "").into());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ip.rs:76:25
[INFO] [stdout]     |
[INFO] [stdout]  76 |         let remaining = try_split!(header.0, len);
[INFO] [stdout]     |                         ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<std::io::Error as Into<std::io::Error>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/bytes.rs:187:24
[INFO] [stdout]     |
[INFO] [stdout] 184 | macro_rules! try_split {
[INFO] [stdout] ...
[INFO] [stdout] 187 |             return Err(::std::io::Error::new(::std::io::ErrorKind::UnexpectedEof, "").into());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ip.rs:177:13
[INFO] [stdout]     |
[INFO] [stdout] 177 |             try_split!(header.0, Ipv6Header::len() + payload_len);
[INFO] [stdout]     |             ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<std::io::Error as Into<std::io::Error>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/bytes.rs:187:24
[INFO] [stdout]     |
[INFO] [stdout] 184 | macro_rules! try_split {
[INFO] [stdout] ...
[INFO] [stdout] 187 |             return Err(::std::io::Error::new(::std::io::ErrorKind::UnexpectedEof, "").into());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ip.rs:179:25
[INFO] [stdout]     |
[INFO] [stdout] 179 |         let remaining = try_split!(header.0, Ipv6Header::len());
[INFO] [stdout]     |                         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<std::io::Error as Into<std::io::Error>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/bytes.rs:187:24
[INFO] [stdout]     |
[INFO] [stdout] 184 | macro_rules! try_split {
[INFO] [stdout] ...
[INFO] [stdout] 187 |             return Err(::std::io::Error::new(::std::io::ErrorKind::UnexpectedEof, "").into());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ip.rs:371:25
[INFO] [stdout]     |
[INFO] [stdout] 371 |         let remaining = try_split!(opts.0, len);
[INFO] [stdout]     |                         ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<std::io::Error as Into<std::io::Error>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/bytes.rs:187:24
[INFO] [stdout]     |
[INFO] [stdout] 184 | macro_rules! try_split {
[INFO] [stdout] ...
[INFO] [stdout] 187 |             return Err(::std::io::Error::new(::std::io::ErrorKind::UnexpectedEof, "").into());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/tcp.rs:19:25
[INFO] [stdout]     |
[INFO] [stdout]  19 |         let remaining = try_split!(header.0, len);
[INFO] [stdout]     |                         ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<std::io::Error as Into<std::io::Error>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/bytes.rs:187:24
[INFO] [stdout]     |
[INFO] [stdout] 184 | macro_rules! try_split {
[INFO] [stdout] ...
[INFO] [stdout] 187 |             return Err(::std::io::Error::new(::std::io::ErrorKind::UnexpectedEof, "").into());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/udp.rs:15:27
[INFO] [stdout]     |
[INFO] [stdout]  15 |         let mut payload = try_split!(header.0, UdpHeader::len());
[INFO] [stdout]     |                           -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<std::io::Error as Into<std::io::Error>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error`
[INFO] [stdout]    --> src/bytes.rs:187:24
[INFO] [stdout]     |
[INFO] [stdout] 184 | macro_rules! try_split {
[INFO] [stdout] ...
[INFO] [stdout] 187 |             return Err(::std::io::Error::new(::std::io::ErrorKind::UnexpectedEof, "").into());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/udp.rs:17:13
[INFO] [stdout]     |
[INFO] [stdout]  17 |             try_split!(payload, data_len);
[INFO] [stdout]     |             ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<std::io::Error as Into<std::io::Error>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bytes.rs:82:21
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn as_slice(&self) -> Ref<[u8]> {
[INFO] [stdout]    |                     ^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[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] 82 |     pub fn as_slice(&self) -> Ref<'_, [u8]> {
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bytes.rs:86:19
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn as_mut(&mut self) -> RefMut<[u8]> {
[INFO] [stdout]    |                   ^^^^^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[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] 86 |     pub fn as_mut(&mut self) -> RefMut<'_, [u8]> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ippacket` (lib) due to 8 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "c4df97f15ad8641bf9be15ab8fb58728e5bdb026dc4156d13dc292341194028c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4df97f15ad8641bf9be15ab8fb58728e5bdb026dc4156d13dc292341194028c", kill_on_drop: false }`
[INFO] [stdout] c4df97f15ad8641bf9be15ab8fb58728e5bdb026dc4156d13dc292341194028c
