[INFO] fetching crate smolapps 0.1.4...
[INFO] testing smolapps-0.1.4 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate smolapps 0.1.4 into /workspace/builds/worker-108/source
[INFO] validating manifest of crates.io crate smolapps 0.1.4 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate smolapps 0.1.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate smolapps 0.1.4
[INFO] tweaked toml for crates.io crate smolapps 0.1.4 written to /workspace/builds/worker-108/source/Cargo.toml
[INFO] crate crates.io crate smolapps 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f09b30f8529ffba70848a645bce6ef3ac17d2d5b8a81e8bf55d40f4bca8efcd9
[INFO] running `Command { std: "docker" "start" "-a" "f09b30f8529ffba70848a645bce6ef3ac17d2d5b8a81e8bf55d40f4bca8efcd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f09b30f8529ffba70848a645bce6ef3ac17d2d5b8a81e8bf55d40f4bca8efcd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f09b30f8529ffba70848a645bce6ef3ac17d2d5b8a81e8bf55d40f4bca8efcd9", kill_on_drop: false }`
[INFO] [stdout] f09b30f8529ffba70848a645bce6ef3ac17d2d5b8a81e8bf55d40f4bca8efcd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e636ba32f9dca01d07365fc03d4cdac8d4f430d54d8c3e330d892869c5c60a4
[INFO] running `Command { std: "docker" "start" "-a" "2e636ba32f9dca01d07365fc03d4cdac8d4f430d54d8c3e330d892869c5c60a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling managed v0.7.1
[INFO] [stderr]    Compiling smoltcp v0.6.0
[INFO] [stderr]    Compiling smolapps v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/wire/tftp.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / enum_with_unknown! {
[INFO] [stdout] 13 | |     /// One of the possible operations supported by TFTP.
[INFO] [stdout] 14 | |     pub enum OpCode(u16) {
[INFO] [stdout] 15 | |         Read = 1,
[INFO] [stdout] ...  |
[INFO] [stdout] 20 | |     }
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(invalid_doc_attributes)]` implied by `#[warn(warnings)]`
[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 the macro `enum_with_unknown` (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:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/wire/tftp.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / enum_with_unknown! {
[INFO] [stdout] 13 | |     /// One of the possible operations supported by TFTP.
[INFO] [stdout] 14 | |     pub enum OpCode(u16) {
[INFO] [stdout] 15 | |         Read = 1,
[INFO] [stdout] ...  |
[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 the macro `enum_with_unknown` (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:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/wire/tftp.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | / enum_with_unknown! {
[INFO] [stdout] 24 | |     /// One of the possible error codes found in a TFTP error packet.
[INFO] [stdout] 25 | |     pub enum ErrorCode(u16) {
[INFO] [stdout] 26 | |         Undefined = 0,
[INFO] [stdout] ...  |
[INFO] [stdout] 34 | |     }
[INFO] [stdout] 35 | | }
[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 the macro `enum_with_unknown` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.76s
[INFO] running `Command { std: "docker" "inspect" "2e636ba32f9dca01d07365fc03d4cdac8d4f430d54d8c3e330d892869c5c60a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e636ba32f9dca01d07365fc03d4cdac8d4f430d54d8c3e330d892869c5c60a4", kill_on_drop: false }`
[INFO] [stdout] 2e636ba32f9dca01d07365fc03d4cdac8d4f430d54d8c3e330d892869c5c60a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c205ab823440492fd15e3649af5088b44b389526ebce57996fc09529529ccfec
[INFO] running `Command { std: "docker" "start" "-a" "c205ab823440492fd15e3649af5088b44b389526ebce57996fc09529529ccfec", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stdout] warning: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/wire/tftp.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / enum_with_unknown! {
[INFO] [stdout] 13 | |     /// One of the possible operations supported by TFTP.
[INFO] [stdout] 14 | |     pub enum OpCode(u16) {
[INFO] [stdout] 15 | |         Read = 1,
[INFO] [stdout] ...  |
[INFO] [stdout] 20 | |     }
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(invalid_doc_attributes)]` implied by `#[warn(warnings)]`
[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 the macro `enum_with_unknown` (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:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/wire/tftp.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / enum_with_unknown! {
[INFO] [stdout] 13 | |     /// One of the possible operations supported by TFTP.
[INFO] [stdout] 14 | |     pub enum OpCode(u16) {
[INFO] [stdout] 15 | |         Read = 1,
[INFO] [stdout] ...  |
[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 the macro `enum_with_unknown` (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:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/wire/tftp.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | / enum_with_unknown! {
[INFO] [stdout] 24 | |     /// One of the possible error codes found in a TFTP error packet.
[INFO] [stdout] 25 | |     pub enum ErrorCode(u16) {
[INFO] [stdout] 26 | |         Undefined = 0,
[INFO] [stdout] ...  |
[INFO] [stdout] 34 | |     }
[INFO] [stdout] 35 | | }
[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 the macro `enum_with_unknown` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling smolapps v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown `doc` attribute `shown`
[INFO] [stdout]   --> src/macros.rs:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/wire/tftp.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / enum_with_unknown! {
[INFO] [stdout] 13 | |     /// One of the possible operations supported by TFTP.
[INFO] [stdout] 14 | |     pub enum OpCode(u16) {
[INFO] [stdout] 15 | |         Read = 1,
[INFO] [stdout] ...  |
[INFO] [stdout] 20 | |     }
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(invalid_doc_attributes)]` implied by `#[warn(warnings)]`
[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 the macro `enum_with_unknown` (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:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/wire/tftp.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / enum_with_unknown! {
[INFO] [stdout] 13 | |     /// One of the possible operations supported by TFTP.
[INFO] [stdout] 14 | |     pub enum OpCode(u16) {
[INFO] [stdout] 15 | |         Read = 1,
[INFO] [stdout] ...  |
[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 the macro `enum_with_unknown` (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:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/wire/tftp.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | / enum_with_unknown! {
[INFO] [stdout] 24 | |     /// One of the possible error codes found in a TFTP error packet.
[INFO] [stdout] 25 | |     pub enum ErrorCode(u16) {
[INFO] [stdout] 26 | |         Undefined = 0,
[INFO] [stdout] ...  |
[INFO] [stdout] 34 | |     }
[INFO] [stdout] 35 | | }
[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 the macro `enum_with_unknown` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 12.48s
[INFO] running `Command { std: "docker" "inspect" "c205ab823440492fd15e3649af5088b44b389526ebce57996fc09529529ccfec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c205ab823440492fd15e3649af5088b44b389526ebce57996fc09529529ccfec", kill_on_drop: false }`
[INFO] [stdout] c205ab823440492fd15e3649af5088b44b389526ebce57996fc09529529ccfec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2ef44a1538ebb583b00ccb08228352f923c1c71b4e743bfcfaac3b72137d865c
[INFO] running `Command { std: "docker" "start" "-a" "2ef44a1538ebb583b00ccb08228352f923c1c71b4e743bfcfaac3b72137d865c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unknown `doc` attribute `shown`
[INFO] [stderr]   --> src/macros.rs:46:26
[INFO] [stderr]    |
[INFO] [stderr] 46 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stderr]    |                            ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/wire/tftp.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | / enum_with_unknown! {
[INFO] [stderr] 13 | |     /// One of the possible operations supported by TFTP.
[INFO] [stderr] 14 | |     pub enum OpCode(u16) {
[INFO] [stderr] 15 | |         Read = 1,
[INFO] [stderr] ...  |
[INFO] [stderr] 20 | |     }
[INFO] [stderr] 21 | | }
[INFO] [stderr]    | |_- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 | #![deny(warnings)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(invalid_doc_attributes)]` implied by `#[warn(warnings)]`
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stderr]    = note: this warning originates in the macro `enum_with_unknown` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unknown `doc` attribute `shown`
[INFO] [stderr]   --> src/macros.rs:46:26
[INFO] [stderr]    |
[INFO] [stderr] 46 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stderr]    |                            ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/wire/tftp.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | / enum_with_unknown! {
[INFO] [stderr] 13 | |     /// One of the possible operations supported by TFTP.
[INFO] [stderr] 14 | |     pub enum OpCode(u16) {
[INFO] [stderr] 15 | |         Read = 1,
[INFO] [stderr] ...  |
[INFO] [stderr] 20 | |     }
[INFO] [stderr] 21 | | }
[INFO] [stderr]    | |_- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stderr]    = note: this warning originates in the macro `enum_with_unknown` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unknown `doc` attribute `shown`
[INFO] [stderr]   --> src/macros.rs:46:26
[INFO] [stderr]    |
[INFO] [stderr] 46 |                   $( #[doc(shown)] $variant = $value ),+
[INFO] [stderr]    |                            ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/wire/tftp.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | / enum_with_unknown! {
[INFO] [stderr] 24 | |     /// One of the possible error codes found in a TFTP error packet.
[INFO] [stderr] 25 | |     pub enum ErrorCode(u16) {
[INFO] [stderr] 26 | |         Undefined = 0,
[INFO] [stderr] ...  |
[INFO] [stderr] 34 | |     }
[INFO] [stderr] 35 | | }
[INFO] [stderr]    | |_- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stderr]    = note: this warning originates in the macro `enum_with_unknown` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `smolapps` (lib) generated 3 warnings
[INFO] [stderr] warning: `smolapps` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.61s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/smolapps-63c3bac193efa6ee)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test wire::sntp::test::test_construct ... ok
[INFO] [stdout] test wire::sntp::test::test_deconstruct ... ok
[INFO] [stdout] test wire::tftp::test::test_emit ... ok
[INFO] [stdout] test wire::tftp::test::test_parse ... ok
[INFO] [stdout] test wire::tftp::test::test_deconstruct ... ok
[INFO] [stdout] test wire::tftp::test::test_construct ... ok
[INFO] [stdout] test wire::sntp::test::test_emit ... ok
[INFO] [stdout] test wire::sntp::test::test_parse ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests smolapps
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/sntp/mod.rs - sntp::Client::new (line 44) ... ok
[INFO] [stdout] test src/tftp/mod.rs - tftp::Server::new (line 74) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.52s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2ef44a1538ebb583b00ccb08228352f923c1c71b4e743bfcfaac3b72137d865c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ef44a1538ebb583b00ccb08228352f923c1c71b4e743bfcfaac3b72137d865c", kill_on_drop: false }`
[INFO] [stdout] 2ef44a1538ebb583b00ccb08228352f923c1c71b4e743bfcfaac3b72137d865c