[INFO] fetching crate kf-protocol-api 2.0.0...
[INFO] checking kf-protocol-api-2.0.0 against try#b0d0ea232bdae12fa8da8491a91ae1db029990ef for pr-84037
[INFO] extracting crate kf-protocol-api 2.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate kf-protocol-api 2.0.0 on toolchain b0d0ea232bdae12fa8da8491a91ae1db029990ef
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kf-protocol-api 2.0.0
[INFO] finished tweaking crates.io crate kf-protocol-api 2.0.0
[INFO] tweaked toml for crates.io crate kf-protocol-api 2.0.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0234dbe2fe21c842494a713fdf3c5978efdc55091d9bedf0e30bca74f54e686
[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" "e0234dbe2fe21c842494a713fdf3c5978efdc55091d9bedf0e30bca74f54e686", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0234dbe2fe21c842494a713fdf3c5978efdc55091d9bedf0e30bca74f54e686", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0234dbe2fe21c842494a713fdf3c5978efdc55091d9bedf0e30bca74f54e686", kill_on_drop: false }`
[INFO] [stdout] e0234dbe2fe21c842494a713fdf3c5978efdc55091d9bedf0e30bca74f54e686
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ef23c959de8909c6618c4068f83fa56af98d13f516dffe3baed42eecf8ef714
[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" "0ef23c959de8909c6618c4068f83fa56af98d13f516dffe3baed42eecf8ef714", kill_on_drop: false }`
[INFO] [stderr]     Checking kf-protocol-api v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]  --> src/kf_api.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[fluvio_kf(encode_discriminant)]
[INFO] [stdout]   |   ^^^^^^^^^
[INFO] [stdout] 5 | #[derive(PartialEq, Debug, Clone, Copy, Encode, Decode)]
[INFO] [stdout]   |                                         ------ the attribute is introduced here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(legacy_derive_helpers)]` 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 #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/error.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[fluvio_kf(encode_discriminant)]
[INFO] [stdout]    |   ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 | #[derive(PartialEq, Debug, Clone, Copy, Serialize, Deserialize, Encode, Decode)]
[INFO] [stdout]    |                                                                 ------ the attribute is introduced here
[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 #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/flv_errors.rs:16:3
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[fluvio_kf(encode_discriminant)]
[INFO] [stdout]    |   ^^^^^^^^^
[INFO] [stdout] 17 | #[repr(i16)]
[INFO] [stdout] 18 | #[derive(Encode, Decode, PartialEq, Debug, Clone, Copy, Serialize)]
[INFO] [stdout]    |          ------ the attribute is introduced here
[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 #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/error.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[fluvio_kf(default)]
[INFO] [stdout]    |   ^^^^^^^^^
[INFO] [stdout] 12 | #[repr(i16)]
[INFO] [stdout] 13 | #[derive(PartialEq, Debug, Clone, Copy, Serialize, Deserialize, Encode, Decode)]
[INFO] [stdout]    |                                                                 ------ the attribute is introduced here
[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 #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]  --> src/kf_api.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[fluvio_kf(encode_discriminant)]
[INFO] [stdout]   |   ^^^^^^^^^
[INFO] [stdout] 5 | #[derive(PartialEq, Debug, Clone, Copy, Encode, Decode)]
[INFO] [stdout]   |                                         ------ the attribute is introduced here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(legacy_derive_helpers)]` 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 #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/error.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[fluvio_kf(encode_discriminant)]
[INFO] [stdout]    |   ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 | #[derive(PartialEq, Debug, Clone, Copy, Serialize, Deserialize, Encode, Decode)]
[INFO] [stdout]    |                                                                 ------ the attribute is introduced here
[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 #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/flv_errors.rs:16:3
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[fluvio_kf(encode_discriminant)]
[INFO] [stdout]    |   ^^^^^^^^^
[INFO] [stdout] 17 | #[repr(i16)]
[INFO] [stdout] 18 | #[derive(Encode, Decode, PartialEq, Debug, Clone, Copy, Serialize)]
[INFO] [stdout]    |          ------ the attribute is introduced here
[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 #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/error.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[fluvio_kf(default)]
[INFO] [stdout]    |   ^^^^^^^^^
[INFO] [stdout] 12 | #[repr(i16)]
[INFO] [stdout] 13 | #[derive(PartialEq, Debug, Clone, Copy, Serialize, Deserialize, Encode, Decode)]
[INFO] [stdout]    |                                                                 ------ the attribute is introduced here
[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 #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.99s
[INFO] running `Command { std: "docker" "inspect" "0ef23c959de8909c6618c4068f83fa56af98d13f516dffe3baed42eecf8ef714", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ef23c959de8909c6618c4068f83fa56af98d13f516dffe3baed42eecf8ef714", kill_on_drop: false }`
[INFO] [stdout] 0ef23c959de8909c6618c4068f83fa56af98d13f516dffe3baed42eecf8ef714