[INFO] fetching crate smoltcp 0.7.0...
[INFO] checking smoltcp-0.7.0 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate smoltcp 0.7.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate smoltcp 0.7.0 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate smoltcp 0.7.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate smoltcp 0.7.0
[INFO] tweaked toml for crates.io crate smoltcp 0.7.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate smoltcp 0.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aafd38018db5202cd4d8a755ca36b510dfc66720c356a66f3bb5028ae47c73c9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "aafd38018db5202cd4d8a755ca36b510dfc66720c356a66f3bb5028ae47c73c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aafd38018db5202cd4d8a755ca36b510dfc66720c356a66f3bb5028ae47c73c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aafd38018db5202cd4d8a755ca36b510dfc66720c356a66f3bb5028ae47c73c9", kill_on_drop: false }`
[INFO] [stdout] aafd38018db5202cd4d8a755ca36b510dfc66720c356a66f3bb5028ae47c73c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aaa56f6fb6f3b497019d04cb6f06afb66eaf8c81b2697c13b4cbda07c7c66685
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "aaa56f6fb6f3b497019d04cb6f06afb66eaf8c81b2697c13b4cbda07c7c66685", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking managed v0.7.2
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking smoltcp v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stdout] warning: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/wire/ethernet.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout] 6  | / enum_with_unknown! {
[INFO] [stdout] 7  | |     /// Ethernet protocol type.
[INFO] [stdout] 8  | |     pub enum EtherType(u16) {
[INFO] [stdout] 9  | |         Ipv4 = 0x0800,
[INFO] [stdout] ...  |
[INFO] [stdout] 12 | |     }
[INFO] [stdout] 13 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/wire/ethernet.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout] 6  | / enum_with_unknown! {
[INFO] [stdout] 7  | |     /// Ethernet protocol type.
[INFO] [stdout] 8  | |     pub enum EtherType(u16) {
[INFO] [stdout] 9  | |         Ipv4 = 0x0800,
[INFO] [stdout] ...  |
[INFO] [stdout] 12 | |     }
[INFO] [stdout] 13 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/wire/arp.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / enum_with_unknown! {
[INFO] [stdout] 9  | |     /// ARP hardware type.
[INFO] [stdout] 10 | |     pub enum Hardware(u16) {
[INFO] [stdout] 11 | |         Ethernet = 1
[INFO] [stdout] 12 | |     }
[INFO] [stdout] 13 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/wire/arp.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | / enum_with_unknown! {
[INFO] [stdout] 16 | |     /// ARP operation type.
[INFO] [stdout] 17 | |     pub enum Operation(u16) {
[INFO] [stdout] 18 | |         Request = 1,
[INFO] [stdout] 19 | |         Reply = 2
[INFO] [stdout] 20 | |     }
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/wire/ip.rs:50:1
[INFO] [stdout]    |
[INFO] [stdout] 50 | / enum_with_unknown! {
[INFO] [stdout] 51 | |     /// IP datagram encapsulated protocol.
[INFO] [stdout] 52 | |     pub enum Protocol(u8) {
[INFO] [stdout] 53 | |         HopByHop  = 0x00,
[INFO] [stdout] ...  |
[INFO] [stdout] 63 | |     }
[INFO] [stdout] 64 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/wire/dhcpv4.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / enum_with_unknown! {
[INFO] [stdout] 12 | |     /// The possible opcodes of a DHCP packet.
[INFO] [stdout] 13 | |     pub enum OpCode(u8) {
[INFO] [stdout] 14 | |         Request = 1,
[INFO] [stdout] 15 | |         Reply = 2,
[INFO] [stdout] 16 | |     }
[INFO] [stdout] 17 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/wire/dhcpv4.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | / enum_with_unknown! {
[INFO] [stdout] 20 | |     /// The possible message types of a DHCP packet.
[INFO] [stdout] 21 | |     pub enum MessageType(u8) {
[INFO] [stdout] 22 | |         Discover = 1,
[INFO] [stdout] ...  |
[INFO] [stdout] 30 | |     }
[INFO] [stdout] 31 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `test`
[INFO] [stdout]   --> benches/bench.rs:28:31
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn bench_emit_tcp(b: &mut test::Bencher) {
[INFO] [stdout]    |                               ^^^^ use of undeclared crate or module `test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `test`
[INFO] [stdout]   --> benches/bench.rs:52:31
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn bench_emit_udp(b: &mut test::Bencher) {
[INFO] [stdout]    |                               ^^^^ use of undeclared crate or module `test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `test`
[INFO] [stdout]   --> benches/bench.rs:70:32
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn bench_emit_ipv4(b: &mut test::Bencher) {
[INFO] [stdout]    |                                ^^^^ use of undeclared crate or module `test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `test`
[INFO] [stdout]   --> benches/bench.rs:88:32
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn bench_emit_ipv6(b: &mut test::Bencher) {
[INFO] [stdout]    |                                ^^^^ use of undeclared crate or module `test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `test`
[INFO] [stdout]  --> benches/bench.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use test;
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0063]: missing fields `sack_permitted` and `sack_ranges` in initializer of `TcpRepr<'_>`
[INFO] [stdout]   --> benches/bench.rs:31:20
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let repr = TcpRepr {
[INFO] [stdout]    |                    ^^^^^^^ missing `sack_permitted` and `sack_ranges`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `new` found for struct `TcpPacket<_>` in the current scope
[INFO] [stdout]   --> benches/bench.rs:45:41
[INFO] [stdout]    |
[INFO] [stdout] 45 |             let mut packet = TcpPacket::new(&mut bytes);
[INFO] [stdout]    |                                         ^^^ function or associated item not found in `TcpPacket<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `new` found for struct `UdpPacket<_>` in the current scope
[INFO] [stdout]   --> benches/bench.rs:63:41
[INFO] [stdout]    |
[INFO] [stdout] 63 |             let mut packet = UdpPacket::new(&mut bytes);
[INFO] [stdout]    |                                         ^^^ function or associated item not found in `UdpPacket<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `new` found for struct `Ipv4Packet<_>` in the current scope
[INFO] [stdout]   --> benches/bench.rs:81:42
[INFO] [stdout]    |
[INFO] [stdout] 81 |             let mut packet = Ipv4Packet::new(&mut bytes);
[INFO] [stdout]    |                                          ^^^ function or associated item not found in `Ipv4Packet<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `new` found for struct `Ipv6Packet<_>` in the current scope
[INFO] [stdout]    --> benches/bench.rs:101:42
[INFO] [stdout]     |
[INFO] [stdout] 101 |             let mut packet = Ipv6Packet::new(&mut bytes);
[INFO] [stdout]     |                                          ^^^ function or associated item not found in `Ipv6Packet<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0063, E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0063`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `smoltcp`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/wire/ethernet.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout] 6  | / enum_with_unknown! {
[INFO] [stdout] 7  | |     /// Ethernet protocol type.
[INFO] [stdout] 8  | |     pub enum EtherType(u16) {
[INFO] [stdout] 9  | |         Ipv4 = 0x0800,
[INFO] [stdout] ...  |
[INFO] [stdout] 12 | |     }
[INFO] [stdout] 13 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/wire/ethernet.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout] 6  | / enum_with_unknown! {
[INFO] [stdout] 7  | |     /// Ethernet protocol type.
[INFO] [stdout] 8  | |     pub enum EtherType(u16) {
[INFO] [stdout] 9  | |         Ipv4 = 0x0800,
[INFO] [stdout] ...  |
[INFO] [stdout] 12 | |     }
[INFO] [stdout] 13 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/wire/arp.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / enum_with_unknown! {
[INFO] [stdout] 9  | |     /// ARP hardware type.
[INFO] [stdout] 10 | |     pub enum Hardware(u16) {
[INFO] [stdout] 11 | |         Ethernet = 1
[INFO] [stdout] 12 | |     }
[INFO] [stdout] 13 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/wire/arp.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | / enum_with_unknown! {
[INFO] [stdout] 16 | |     /// ARP operation type.
[INFO] [stdout] 17 | |     pub enum Operation(u16) {
[INFO] [stdout] 18 | |         Request = 1,
[INFO] [stdout] 19 | |         Reply = 2
[INFO] [stdout] 20 | |     }
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/wire/ip.rs:50:1
[INFO] [stdout]    |
[INFO] [stdout] 50 | / enum_with_unknown! {
[INFO] [stdout] 51 | |     /// IP datagram encapsulated protocol.
[INFO] [stdout] 52 | |     pub enum Protocol(u8) {
[INFO] [stdout] 53 | |         HopByHop  = 0x00,
[INFO] [stdout] ...  |
[INFO] [stdout] 63 | |     }
[INFO] [stdout] 64 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/wire/dhcpv4.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / enum_with_unknown! {
[INFO] [stdout] 12 | |     /// The possible opcodes of a DHCP packet.
[INFO] [stdout] 13 | |     pub enum OpCode(u8) {
[INFO] [stdout] 14 | |         Request = 1,
[INFO] [stdout] 15 | |         Reply = 2,
[INFO] [stdout] 16 | |     }
[INFO] [stdout] 17 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/wire/dhcpv4.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | / enum_with_unknown! {
[INFO] [stdout] 20 | |     /// The possible message types of a DHCP packet.
[INFO] [stdout] 21 | |     pub enum MessageType(u8) {
[INFO] [stdout] 22 | |         Discover = 1,
[INFO] [stdout] ...  |
[INFO] [stdout] 30 | |     }
[INFO] [stdout] 31 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "aaa56f6fb6f3b497019d04cb6f06afb66eaf8c81b2697c13b4cbda07c7c66685", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaa56f6fb6f3b497019d04cb6f06afb66eaf8c81b2697c13b4cbda07c7c66685", kill_on_drop: false }`
[INFO] [stdout] aaa56f6fb6f3b497019d04cb6f06afb66eaf8c81b2697c13b4cbda07c7c66685