[INFO] fetching crate packet 0.1.2...
[INFO] checking packet-0.1.2 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate packet 0.1.2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate packet 0.1.2 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate packet 0.1.2
[INFO] finished tweaking crates.io crate packet 0.1.2
[INFO] tweaked toml for crates.io crate packet 0.1.2 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2441c06b54e9babb2b188752fa1d7120d66b95d8f3478f67363cf2d68edfa7bf
[INFO] running `"docker" "start" "-a" "2441c06b54e9babb2b188752fa1d7120d66b95d8f3478f67363cf2d68edfa7bf"`
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[INFO] [stderr]     Checking packet v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ip/v4/flag.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | / bitflags! {
[INFO] [stderr] 16 | |     /// IPv4 packet flags.
[INFO] [stderr] 17 | |     pub struct Flags: u16 {
[INFO] [stderr] 18 | |         /// Do not fragment packets.
[INFO] [stderr] ...  |
[INFO] [stderr] 23 | |     }
[INFO] [stderr] 24 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ip/v4/flag.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | / bitflags! {
[INFO] [stderr] 16 | |     /// IPv4 packet flags.
[INFO] [stderr] 17 | |     pub struct Flags: u16 {
[INFO] [stderr] 18 | |         /// Do not fragment packets.
[INFO] [stderr] ...  |
[INFO] [stderr] 23 | |     }
[INFO] [stderr] 24 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ip/v4/flag.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | / bitflags! {
[INFO] [stderr] 16 | |     /// IPv4 packet flags.
[INFO] [stderr] 17 | |     pub struct Flags: u16 {
[INFO] [stderr] 18 | |         /// Do not fragment packets.
[INFO] [stderr] ...  |
[INFO] [stderr] 23 | |     }
[INFO] [stderr] 24 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/tcp/flag.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | / bitflags! {
[INFO] [stderr] 16 | |     /// TCP flags.
[INFO] [stderr] 17 | |     pub struct Flags: u16 {
[INFO] [stderr] 18 | |         ///
[INFO] [stderr] ...  |
[INFO] [stderr] 44 | |     }
[INFO] [stderr] 45 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/tcp/flag.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | / bitflags! {
[INFO] [stderr] 16 | |     /// TCP flags.
[INFO] [stderr] 17 | |     pub struct Flags: u16 {
[INFO] [stderr] 18 | |         ///
[INFO] [stderr] ...  |
[INFO] [stderr] 44 | |     }
[INFO] [stderr] 45 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/tcp/flag.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | / bitflags! {
[INFO] [stderr] 16 | |     /// TCP flags.
[INFO] [stderr] 17 | |     pub struct Flags: u16 {
[INFO] [stderr] 18 | |         ///
[INFO] [stderr] ...  |
[INFO] [stderr] 44 | |     }
[INFO] [stderr] 45 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/builder.rs:36:33
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub struct Finalization(Vec<Box<Finalizer>>);
[INFO] [stderr]    |                                 ^^^^^^^^^ help: use `dyn`: `dyn Finalizer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/builder.rs:59:43
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn extend<I: IntoIterator<Item = Box<Finalizer>>>(&mut self, finalizers: I) {
[INFO] [stderr]    |                                              ^^^^^^^^^ help: use `dyn`: `dyn Finalizer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/builder.rs:74:22
[INFO] [stderr]    |
[INFO] [stderr] 74 |     type Item     = Box<Finalizer>;
[INFO] [stderr]    |                         ^^^^^^^^^ help: use `dyn`: `dyn Finalizer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/builder.rs:75:43
[INFO] [stderr]    |
[INFO] [stderr] 75 |     type IntoIter = ::std::vec::IntoIter<Box<Finalizer>>;
[INFO] [stderr]    |                                              ^^^^^^^^^ help: use `dyn`: `dyn Finalizer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/builder.rs:77:49
[INFO] [stderr]    |
[INFO] [stderr] 77 |     fn into_iter(self) -> ::std::vec::IntoIter<Box<Finalizer>> {
[INFO] [stderr]    |                                                    ^^^^^^^^^ help: use `dyn`: `dyn Finalizer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/builder.rs:82:19
[INFO] [stderr]    |
[INFO] [stderr] 82 | impl Into<Vec<Box<Finalizer>>> for Finalization {
[INFO] [stderr]    |                   ^^^^^^^^^ help: use `dyn`: `dyn Finalizer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/builder.rs:83:27
[INFO] [stderr]    |
[INFO] [stderr] 83 |     fn into(self) -> Vec<Box<Finalizer>> {
[INFO] [stderr]    |                              ^^^^^^^^^ help: use `dyn`: `dyn Finalizer`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/ip/v4/packet.rs:43:51
[INFO] [stderr]    |
[INFO] [stderr] 43 |         size: p => (p.length() as usize).saturating_sub((p.header() as usize * 4)),
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::Ipv4Addr`
[INFO] [stderr]   --> src/ip/v6/packet.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use std::net::Ipv4Addr;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BigEndian`, `ReadBytesExt`
[INFO] [stderr]   --> src/ip/v6/packet.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 | use byteorder::{ReadBytesExt, BigEndian};
[INFO] [stderr]    |                 ^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `size`
[INFO] [stderr]   --> src/ip/v6/packet.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use size;
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ip::Protocol`
[INFO] [stderr]   --> src/ip/v6/packet.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use ip::Protocol;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ip::v4::Flags`
[INFO] [stderr]   --> src/ip/v6/packet.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | use ip::v4::Flags;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ip::v4::option`
[INFO] [stderr]   --> src/ip/v6/packet.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | use ip::v4::option;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ip::v4::checksum`
[INFO] [stderr]   --> src/ip/v6/packet.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | use ip::v4::checksum;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Cursor`
[INFO] [stderr]   --> src/ip/v6/builder.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::io::Cursor;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BigEndian`, `WriteBytesExt`
[INFO] [stderr]   --> src/ip/v6/builder.rs:16:17
[INFO] [stderr]    |
[INFO] [stderr] 16 | use byteorder::{WriteBytesExt, BigEndian};
[INFO] [stderr]    |                 ^^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ip/v4/flag.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | / bitflags! {
[INFO] [stderr] 16 | |     /// IPv4 packet flags.
[INFO] [stderr] 17 | |     pub struct Flags: u16 {
[INFO] [stderr] 18 | |         /// Do not fragment packets.
[INFO] [stderr] ...  |
[INFO] [stderr] 23 | |     }
[INFO] [stderr] 24 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ip/v4/flag.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | / bitflags! {
[INFO] [stderr] 16 | |     /// IPv4 packet flags.
[INFO] [stderr] 17 | |     pub struct Flags: u16 {
[INFO] [stderr] 18 | |         /// Do not fragment packets.
[INFO] [stderr] ...  |
[INFO] [stderr] 23 | |     }
[INFO] [stderr] 24 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ip/v4/flag.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | / bitflags! {
[INFO] [stderr] 16 | |     /// IPv4 packet flags.
[INFO] [stderr] 17 | |     pub struct Flags: u16 {
[INFO] [stderr] 18 | |         /// Do not fragment packets.
[INFO] [stderr] ...  |
[INFO] [stderr] 23 | |     }
[INFO] [stderr] 24 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/tcp/flag.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | / bitflags! {
[INFO] [stderr] 16 | |     /// TCP flags.
[INFO] [stderr] 17 | |     pub struct Flags: u16 {
[INFO] [stderr] 18 | |         ///
[INFO] [stderr] ...  |
[INFO] [stderr] 44 | |     }
[INFO] [stderr] 45 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/tcp/flag.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | / bitflags! {
[INFO] [stderr] 16 | |     /// TCP flags.
[INFO] [stderr] 17 | |     pub struct Flags: u16 {
[INFO] [stderr] 18 | |         ///
[INFO] [stderr] ...  |
[INFO] [stderr] 44 | |     }
[INFO] [stderr] 45 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/tcp/flag.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | / bitflags! {
[INFO] [stderr] 16 | |     /// TCP flags.
[INFO] [stderr] 17 | |     pub struct Flags: u16 {
[INFO] [stderr] 18 | |         ///
[INFO] [stderr] ...  |
[INFO] [stderr] 44 | |     }
[INFO] [stderr] 45 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/builder.rs:36:33
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub struct Finalization(Vec<Box<Finalizer>>);
[INFO] [stderr]    |                                 ^^^^^^^^^ help: use `dyn`: `dyn Finalizer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/builder.rs:59:43
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn extend<I: IntoIterator<Item = Box<Finalizer>>>(&mut self, finalizers: I) {
[INFO] [stderr]    |                                              ^^^^^^^^^ help: use `dyn`: `dyn Finalizer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/builder.rs:74:22
[INFO] [stderr]    |
[INFO] [stderr] 74 |     type Item     = Box<Finalizer>;
[INFO] [stderr]    |                         ^^^^^^^^^ help: use `dyn`: `dyn Finalizer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/builder.rs:75:43
[INFO] [stderr]    |
[INFO] [stderr] 75 |     type IntoIter = ::std::vec::IntoIter<Box<Finalizer>>;
[INFO] [stderr]    |                                              ^^^^^^^^^ help: use `dyn`: `dyn Finalizer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/builder.rs:77:49
[INFO] [stderr]    |
[INFO] [stderr] 77 |     fn into_iter(self) -> ::std::vec::IntoIter<Box<Finalizer>> {
[INFO] [stderr]    |                                                    ^^^^^^^^^ help: use `dyn`: `dyn Finalizer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/builder.rs:82:19
[INFO] [stderr]    |
[INFO] [stderr] 82 | impl Into<Vec<Box<Finalizer>>> for Finalization {
[INFO] [stderr]    |                   ^^^^^^^^^ help: use `dyn`: `dyn Finalizer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/builder.rs:83:27
[INFO] [stderr]    |
[INFO] [stderr] 83 |     fn into(self) -> Vec<Box<Finalizer>> {
[INFO] [stderr]    |                              ^^^^^^^^^ help: use `dyn`: `dyn Finalizer`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/ip/v4/packet.rs:43:51
[INFO] [stderr]    |
[INFO] [stderr] 43 |         size: p => (p.length() as usize).saturating_sub((p.header() as usize * 4)),
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::Ipv4Addr`
[INFO] [stderr]   --> src/ip/v6/packet.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use std::net::Ipv4Addr;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BigEndian`, `ReadBytesExt`
[INFO] [stderr]   --> src/ip/v6/packet.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 | use byteorder::{ReadBytesExt, BigEndian};
[INFO] [stderr]    |                 ^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `size`
[INFO] [stderr]   --> src/ip/v6/packet.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use size;
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ip::Protocol`
[INFO] [stderr]   --> src/ip/v6/packet.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use ip::Protocol;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ip::v4::Flags`
[INFO] [stderr]   --> src/ip/v6/packet.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | use ip::v4::Flags;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ip::v4::option`
[INFO] [stderr]   --> src/ip/v6/packet.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | use ip::v4::option;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ip::v4::checksum`
[INFO] [stderr]   --> src/ip/v6/packet.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | use ip::v4::checksum;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Cursor`
[INFO] [stderr]   --> src/ip/v6/builder.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::io::Cursor;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BigEndian`, `WriteBytesExt`
[INFO] [stderr]   --> src/ip/v6/builder.rs:16:17
[INFO] [stderr]    |
[INFO] [stderr] 16 | use byteorder::{WriteBytesExt, BigEndian};
[INFO] [stderr]    |                 ^^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | / error_chain! {
[INFO] [stderr] 16 | |     errors {
[INFO] [stderr] 17 | |         /// The buffer is too small.
[INFO] [stderr] 18 | |         SmallBuffer { }
[INFO] [stderr] ...  |
[INFO] [stderr] 33 | |     }
[INFO] [stderr] 34 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | / error_chain! {
[INFO] [stderr] 16 | |     errors {
[INFO] [stderr] 17 | |         /// The buffer is too small.
[INFO] [stderr] 18 | |         SmallBuffer { }
[INFO] [stderr] ...  |
[INFO] [stderr] 33 | |     }
[INFO] [stderr] 34 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | / error_chain! {
[INFO] [stderr] 16 | |     errors {
[INFO] [stderr] 17 | |         /// The buffer is too small.
[INFO] [stderr] 18 | |         SmallBuffer { }
[INFO] [stderr] ...  |
[INFO] [stderr] 33 | |     }
[INFO] [stderr] 34 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `packet`
[INFO] [stderr]   --> src/tcp/mod.rs:53:18
[INFO] [stderr]    |
[INFO] [stderr] 53 |         ip::Packet::V6(ref packet) => {
[INFO] [stderr]    |                        ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_packet`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `packet`
[INFO] [stderr]   --> src/udp/mod.rs:45:18
[INFO] [stderr]    |
[INFO] [stderr] 45 |         ip::Packet::V6(ref packet) => {
[INFO] [stderr]    |                        ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_packet`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | / error_chain! {
[INFO] [stderr] 16 | |     errors {
[INFO] [stderr] 17 | |         /// The buffer is too small.
[INFO] [stderr] 18 | |         SmallBuffer { }
[INFO] [stderr] ...  |
[INFO] [stderr] 33 | |     }
[INFO] [stderr] 34 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `packet`
[INFO] [stderr]   --> src/tcp/mod.rs:53:18
[INFO] [stderr]    |
[INFO] [stderr] 53 |         ip::Packet::V6(ref packet) => {
[INFO] [stderr]    |                        ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_packet`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `packet`
[INFO] [stderr]   --> src/udp/mod.rs:45:18
[INFO] [stderr]    |
[INFO] [stderr] 45 |         ip::Packet::V6(ref packet) => {
[INFO] [stderr]    |                        ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_packet`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ip/v4/packet.rs:173:7
[INFO] [stderr]     |
[INFO] [stderr] 173 |         let mut buffer = self.buffer.as_mut();
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ip/v4/packet.rs:174:7
[INFO] [stderr]     |
[INFO] [stderr] 174 |         let mut buffer = if buffer.len() < header + payload {
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ip/v4/packet.rs:173:7
[INFO] [stderr]     |
[INFO] [stderr] 173 |         let mut buffer = self.buffer.as_mut();
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ip/v4/packet.rs:174:7
[INFO] [stderr]     |
[INFO] [stderr] 174 |         let mut buffer = if buffer.len() < header + payload {
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/udp/packet.rs:154:7
[INFO] [stderr]     |
[INFO] [stderr] 154 |         let mut buffer = self.buffer.as_mut();
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/udp/packet.rs:155:7
[INFO] [stderr]     |
[INFO] [stderr] 155 |         let mut buffer = if buffer.len() < header + payload {
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `buffer`
[INFO] [stderr]   --> src/ip/v6/builder.rs:24:2
[INFO] [stderr]    |
[INFO] [stderr] 24 |     buffer:    B,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tcp/packet.rs:427:12
[INFO] [stderr]     |
[INFO] [stderr] 427 |         let (ip, mut tcp) = ip.split_mut();
[INFO] [stderr]     |                  ----^^^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/udp/packet.rs:154:7
[INFO] [stderr]     |
[INFO] [stderr] 154 |         let mut buffer = self.buffer.as_mut();
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/udp/packet.rs:155:7
[INFO] [stderr]     |
[INFO] [stderr] 155 |         let mut buffer = if buffer.len() < header + payload {
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/udp/packet.rs:316:12
[INFO] [stderr]     |
[INFO] [stderr] 316 |         let (ip, mut udp) = ip.split_mut();
[INFO] [stderr]     |                  ----^^^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 32 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `buffer`
[INFO] [stderr]   --> src/ip/v6/builder.rs:24:2
[INFO] [stderr]    |
[INFO] [stderr] 24 |     buffer:    B,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 34 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 57s
[INFO] running `"docker" "inspect" "2441c06b54e9babb2b188752fa1d7120d66b95d8f3478f67363cf2d68edfa7bf"`
[INFO] running `"docker" "rm" "-f" "2441c06b54e9babb2b188752fa1d7120d66b95d8f3478f67363cf2d68edfa7bf"`
[INFO] [stdout] 2441c06b54e9babb2b188752fa1d7120d66b95d8f3478f67363cf2d68edfa7bf