[INFO] fetching crate ethox 0.0.2...
[INFO] checking ethox-0.0.2 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate ethox 0.0.2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate ethox 0.0.2 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ethox 0.0.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate ethox 0.0.2
[INFO] tweaked toml for crates.io crate ethox 0.0.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate ethox 0.0.2 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" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded structopt-derive v0.2.18
[INFO] [stderr]   Downloaded structopt v0.2.18
[INFO] [stderr]   Downloaded unicode-segmentation v1.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fde36e3ed45608482099fb6e5fcb60bdeb727fc79e4f82881aa1a57c12c76f5f
[INFO] running `Command { std: "docker" "start" "-a" "fde36e3ed45608482099fb6e5fcb60bdeb727fc79e4f82881aa1a57c12c76f5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fde36e3ed45608482099fb6e5fcb60bdeb727fc79e4f82881aa1a57c12c76f5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fde36e3ed45608482099fb6e5fcb60bdeb727fc79e4f82881aa1a57c12c76f5f", kill_on_drop: false }`
[INFO] [stdout] fde36e3ed45608482099fb6e5fcb60bdeb727fc79e4f82881aa1a57c12c76f5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2544341fe5423fc93c33cae5b867adb876a09e959595a49266dc5c2ff70ac776
[INFO] running `Command { std: "docker" "start" "-a" "2544341fe5423fc93c33cae5b867adb876a09e959595a49266dc5c2ff70ac776", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking ethox v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/wire/./tcp.rs:1013:13
[INFO] [stdout]      |
[INFO] [stdout] 1013 |             (self.flags.syn() | self.flags.fin() | self.flags.rst())
[INFO] [stdout]      |             ^                                                      ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1013 -             (self.flags.syn() | self.flags.fin() | self.flags.rst())
[INFO] [stdout] 1013 +             self.flags.syn() | self.flags.fin() | self.flags.rst()
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stdout] error: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:42
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $($(#[$val_attr])* #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/wire/./ethernet.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / enum_with_unknown! {
[INFO] [stdout] 9  | |     /// Ethernet protocol type.
[INFO] [stdout] 10 | |     pub enum EtherType(u16) {
[INFO] [stdout] 11 | |         Ipv4 = 0x0800,
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | |     }
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(invalid_doc_attributes)]` on by default
[INFO] [stdout]    = note: this error originates in the macro `enum_with_unknown` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:42
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $($(#[$val_attr])* #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/wire/./arp.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / enum_with_unknown! {
[INFO] [stdout] 12 | |     /// ARP hardware type.
[INFO] [stdout] 13 | |     pub enum Hardware(u16) {
[INFO] [stdout] 14 | |         Ethernet = 1
[INFO] [stdout] 15 | |     }
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `enum_with_unknown` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:42
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $($(#[$val_attr])* #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/wire/./arp.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | / enum_with_unknown! {
[INFO] [stdout] 19 | |     /// ARP operation type.
[INFO] [stdout] 20 | |     pub enum Operation(u16) {
[INFO] [stdout] 21 | |         Request = 1,
[INFO] [stdout] 22 | |         Reply = 2
[INFO] [stdout] 23 | |     }
[INFO] [stdout] 24 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `enum_with_unknown` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:42
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $($(#[$val_attr])* #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/wire/./ip.rs:57:1
[INFO] [stdout]    |
[INFO] [stdout] 57 | / enum_with_unknown! {
[INFO] [stdout] 58 | |     /// IP datagram encapsulated protocol.
[INFO] [stdout] 59 | |     pub enum Protocol(u8) {
[INFO] [stdout] 60 | |         HopByHop  = 0x00,
[INFO] [stdout] ...  |
[INFO] [stdout] 70 | |     }
[INFO] [stdout] 71 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `enum_with_unknown` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:42
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $($(#[$val_attr])* #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/wire/./ipv6.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | / enum_with_unknown! {
[INFO] [stdout] 32 | |     /// IPv6 multicast scope.
[INFO] [stdout] 33 | |     pub enum Scope(u8) {
[INFO] [stdout] 34 | |         /// The address is valid for the interface alone.
[INFO] [stdout] ...  |
[INFO] [stdout] 48 | |     }
[INFO] [stdout] 49 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `enum_with_unknown` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `silent_until` is never read
[INFO] [stdout]    --> src/layer/arp/neighbor.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub struct Cache<'a> {
[INFO] [stdout]     |            ----- field in this struct
[INFO] [stdout] 108 |     storage:      Ordered<'a, Neighbor>,
[INFO] [stdout] 109 |     silent_until: Instant,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Cache` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a method
[INFO] [stdout]    --> src/layer/ip/packet.rs:267:5
[INFO] [stdout]     |
[INFO] [stdout] 267 |     pub fn control(&self) -> &Controller<'a> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:59:9
[INFO] [stdout]     |
[INFO] [stdout] 59  | #![warn(missing_docs)]
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `core::mem::replace` that must be used
[INFO] [stdout]    --> src/wire/payload.rs:276:9
[INFO] [stdout]     |
[INFO] [stdout] 276 |         core::mem::replace(self, inner);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 276 |         let _ = core::mem::replace(self, inner);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ethox` (lib) due to 6 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2544341fe5423fc93c33cae5b867adb876a09e959595a49266dc5c2ff70ac776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2544341fe5423fc93c33cae5b867adb876a09e959595a49266dc5c2ff70ac776", kill_on_drop: false }`
[INFO] [stdout] 2544341fe5423fc93c33cae5b867adb876a09e959595a49266dc5c2ff70ac776
[INFO] checking ethox-0.0.2 against try#9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88 for pr-124157
[INFO] extracting crate ethox 0.0.2 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate ethox 0.0.2 on toolchain 9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ethox 0.0.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate ethox 0.0.2
[INFO] tweaked toml for crates.io crate ethox 0.0.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate ethox 0.0.2 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" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39ad6d29ae6b35e2afe20b0616d2ff8f5e3d07515da0a5697dce7bc08a8c357d
[INFO] running `Command { std: "docker" "start" "-a" "39ad6d29ae6b35e2afe20b0616d2ff8f5e3d07515da0a5697dce7bc08a8c357d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39ad6d29ae6b35e2afe20b0616d2ff8f5e3d07515da0a5697dce7bc08a8c357d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39ad6d29ae6b35e2afe20b0616d2ff8f5e3d07515da0a5697dce7bc08a8c357d", kill_on_drop: false }`
[INFO] [stdout] 39ad6d29ae6b35e2afe20b0616d2ff8f5e3d07515da0a5697dce7bc08a8c357d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7371a0033ec6ebea48d730fae4fb9a4cf167a97c180864e2f8ca0ccd5e64952
[INFO] running `Command { std: "docker" "start" "-a" "a7371a0033ec6ebea48d730fae4fb9a4cf167a97c180864e2f8ca0ccd5e64952", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking ethox v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/wire/./tcp.rs:1013:13
[INFO] [stdout]      |
[INFO] [stdout] 1013 |             (self.flags.syn() | self.flags.fin() | self.flags.rst())
[INFO] [stdout]      |             ^                                                      ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1013 -             (self.flags.syn() | self.flags.fin() | self.flags.rst())
[INFO] [stdout] 1013 +             self.flags.syn() | self.flags.fin() | self.flags.rst()
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stdout] error: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:42
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $($(#[$val_attr])* #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/wire/./ethernet.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / enum_with_unknown! {
[INFO] [stdout] 9  | |     /// Ethernet protocol type.
[INFO] [stdout] 10 | |     pub enum EtherType(u16) {
[INFO] [stdout] 11 | |         Ipv4 = 0x0800,
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | |     }
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(invalid_doc_attributes)]` on by default
[INFO] [stdout]    = note: this error originates in the macro `enum_with_unknown` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:42
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $($(#[$val_attr])* #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/wire/./arp.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / enum_with_unknown! {
[INFO] [stdout] 12 | |     /// ARP hardware type.
[INFO] [stdout] 13 | |     pub enum Hardware(u16) {
[INFO] [stdout] 14 | |         Ethernet = 1
[INFO] [stdout] 15 | |     }
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `enum_with_unknown` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:42
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $($(#[$val_attr])* #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/wire/./arp.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | / enum_with_unknown! {
[INFO] [stdout] 19 | |     /// ARP operation type.
[INFO] [stdout] 20 | |     pub enum Operation(u16) {
[INFO] [stdout] 21 | |         Request = 1,
[INFO] [stdout] 22 | |         Reply = 2
[INFO] [stdout] 23 | |     }
[INFO] [stdout] 24 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `enum_with_unknown` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:42
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $($(#[$val_attr])* #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/wire/./ip.rs:57:1
[INFO] [stdout]    |
[INFO] [stdout] 57 | / enum_with_unknown! {
[INFO] [stdout] 58 | |     /// IP datagram encapsulated protocol.
[INFO] [stdout] 59 | |     pub enum Protocol(u8) {
[INFO] [stdout] 60 | |         HopByHop  = 0x00,
[INFO] [stdout] ...  |
[INFO] [stdout] 70 | |     }
[INFO] [stdout] 71 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `enum_with_unknown` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:32:42
[INFO] [stdout]    |
[INFO] [stdout] 32 |                   $($(#[$val_attr])* #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/wire/./ipv6.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | / enum_with_unknown! {
[INFO] [stdout] 32 | |     /// IPv6 multicast scope.
[INFO] [stdout] 33 | |     pub enum Scope(u8) {
[INFO] [stdout] 34 | |         /// The address is valid for the interface alone.
[INFO] [stdout] ...  |
[INFO] [stdout] 48 | |     }
[INFO] [stdout] 49 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `enum_with_unknown` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `silent_until` is never read
[INFO] [stdout]    --> src/layer/arp/neighbor.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub struct Cache<'a> {
[INFO] [stdout]     |            ----- field in this struct
[INFO] [stdout] 108 |     storage:      Ordered<'a, Neighbor>,
[INFO] [stdout] 109 |     silent_until: Instant,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Cache` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a method
[INFO] [stdout]    --> src/layer/ip/packet.rs:267:5
[INFO] [stdout]     |
[INFO] [stdout] 267 |     pub fn control(&self) -> &Controller<'a> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:59:9
[INFO] [stdout]     |
[INFO] [stdout] 59  | #![warn(missing_docs)]
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `core::mem::replace` that must be used
[INFO] [stdout]    --> src/wire/payload.rs:276:9
[INFO] [stdout]     |
[INFO] [stdout] 276 |         core::mem::replace(self, inner);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 276 |         let _ = core::mem::replace(self, inner);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ethox` (lib) due to 6 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a7371a0033ec6ebea48d730fae4fb9a4cf167a97c180864e2f8ca0ccd5e64952", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7371a0033ec6ebea48d730fae4fb9a4cf167a97c180864e2f8ca0ccd5e64952", kill_on_drop: false }`
[INFO] [stdout] a7371a0033ec6ebea48d730fae4fb9a4cf167a97c180864e2f8ca0ccd5e64952
