[INFO] fetching crate ark-serialize 0.4.2...
[INFO] checking ark-serialize-0.4.2 against master#b286722878e18db29a7fbe672be7c4d3b02e8e4d for pr-127655
[INFO] extracting crate ark-serialize 0.4.2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate ark-serialize 0.4.2 on toolchain b286722878e18db29a7fbe672be7c4d3b02e8e4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ark-serialize 0.4.2
[INFO] finished tweaking crates.io crate ark-serialize 0.4.2
[INFO] tweaked toml for crates.io crate ark-serialize 0.4.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 50 packages to latest compatible versions
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.1.0)
[INFO] [stderr]       Adding hashbrown v0.13.2 (latest: v0.14.5)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.13.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.71)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ark-test-curves v0.4.2
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7460ded60f8ce87cb1d5f108f5a06ff482ff68859e799149bc640ca74c2c7891
[INFO] running `Command { std: "docker" "start" "-a" "7460ded60f8ce87cb1d5f108f5a06ff482ff68859e799149bc640ca74c2c7891", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7460ded60f8ce87cb1d5f108f5a06ff482ff68859e799149bc640ca74c2c7891", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7460ded60f8ce87cb1d5f108f5a06ff482ff68859e799149bc640ca74c2c7891", kill_on_drop: false }`
[INFO] [stdout] 7460ded60f8ce87cb1d5f108f5a06ff482ff68859e799149bc640ca74c2c7891
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 624cd0ce44dbea2cf0adc8539d1e527780cfa4ae58e400ef4e3b47dc3d8d96e5
[INFO] running `Command { std: "docker" "start" "-a" "624cd0ce44dbea2cf0adc8539d1e527780cfa4ae58e400ef4e3b47dc3d8d96e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]     Checking keccak v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]    Compiling syn v2.0.71
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking hashbrown v0.13.2
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking blake2 v0.10.6
[INFO] [stderr]     Checking ark-std v0.4.0
[INFO] [stderr]     Checking ark-serialize v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `parallel`
[INFO] [stdout]   --> src/lib.rs:52:15
[INFO] [stdout]    |
[INFO] [stdout] 52 |         #[cfg(feature = "parallel")]
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `ark-serialize-derive`, `default`, `derive`, and `std`
[INFO] [stdout]    = help: consider adding `parallel` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `parallel`
[INFO] [stdout]   --> src/lib.rs:57:19
[INFO] [stdout]    |
[INFO] [stdout] 57 |         #[cfg(not(feature = "parallel"))]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `ark-serialize-derive`, `default`, `derive`, and `std`
[INFO] [stdout]    = help: consider adding `parallel` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling ark-serialize-derive v0.4.2
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling ark-ff-macros v0.4.2
[INFO] [stderr]    Compiling ark-ff-asm v0.4.2
[INFO] [stderr]     Checking ark-serialize v0.4.2
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]     Checking ark-ff v0.4.2
[INFO] [stderr]     Checking ark-poly v0.4.2
[INFO] [stderr]     Checking ark-ec v0.4.2
[INFO] [stderr]     Checking ark-test-curves v0.4.2
[INFO] [stdout] warning: unexpected `cfg` condition value: `parallel`
[INFO] [stdout]   --> src/lib.rs:52:15
[INFO] [stdout]    |
[INFO] [stdout] 52 |         #[cfg(feature = "parallel")]
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `ark-serialize-derive`, `default`, `derive`, and `std`
[INFO] [stdout]    = help: consider adding `parallel` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `parallel`
[INFO] [stdout]   --> src/lib.rs:57:19
[INFO] [stdout]    |
[INFO] [stdout] 57 |         #[cfg(not(feature = "parallel"))]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `ark-serialize-derive`, `default`, `derive`, and `std`
[INFO] [stdout]    = help: consider adding `parallel` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.79s
[INFO] running `Command { std: "docker" "inspect" "624cd0ce44dbea2cf0adc8539d1e527780cfa4ae58e400ef4e3b47dc3d8d96e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "624cd0ce44dbea2cf0adc8539d1e527780cfa4ae58e400ef4e3b47dc3d8d96e5", kill_on_drop: false }`
[INFO] [stdout] 624cd0ce44dbea2cf0adc8539d1e527780cfa4ae58e400ef4e3b47dc3d8d96e5
[INFO] checking ark-serialize-0.4.2 against try#6a5749073f2ebf59d7740d30e50a932a85756ee7 for pr-127655
[INFO] extracting crate ark-serialize 0.4.2 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate ark-serialize 0.4.2 on toolchain 6a5749073f2ebf59d7740d30e50a932a85756ee7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ark-serialize 0.4.2
[INFO] finished tweaking crates.io crate ark-serialize 0.4.2
[INFO] tweaked toml for crates.io crate ark-serialize 0.4.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 50 packages to latest compatible versions
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.1.0)
[INFO] [stderr]       Adding hashbrown v0.13.2 (latest: v0.14.5)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.13.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.71)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc397b1eb5e5df1fa8bacfc9b1d009814e12bcbb64a4fcbf3fd537e3e6f30bb9
[INFO] running `Command { std: "docker" "start" "-a" "cc397b1eb5e5df1fa8bacfc9b1d009814e12bcbb64a4fcbf3fd537e3e6f30bb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc397b1eb5e5df1fa8bacfc9b1d009814e12bcbb64a4fcbf3fd537e3e6f30bb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc397b1eb5e5df1fa8bacfc9b1d009814e12bcbb64a4fcbf3fd537e3e6f30bb9", kill_on_drop: false }`
[INFO] [stdout] cc397b1eb5e5df1fa8bacfc9b1d009814e12bcbb64a4fcbf3fd537e3e6f30bb9
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d03745a295b83678742586f88959ae12390aeb9b5d0d2baddc7ba5fce863cd34
[INFO] running `Command { std: "docker" "start" "-a" "d03745a295b83678742586f88959ae12390aeb9b5d0d2baddc7ba5fce863cd34", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]     Checking keccak v0.1.5
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling syn v2.0.71
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking hashbrown v0.13.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking ark-std v0.4.0
[INFO] [stderr]     Checking blake2 v0.10.6
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking ark-serialize v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `parallel`
[INFO] [stdout]   --> src/lib.rs:52:15
[INFO] [stdout]    |
[INFO] [stdout] 52 |         #[cfg(feature = "parallel")]
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `ark-serialize-derive`, `default`, `derive`, and `std`
[INFO] [stdout]    = help: consider adding `parallel` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `parallel`
[INFO] [stdout]   --> src/lib.rs:57:19
[INFO] [stdout]    |
[INFO] [stdout] 57 |         #[cfg(not(feature = "parallel"))]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `ark-serialize-derive`, `default`, `derive`, and `std`
[INFO] [stdout]    = help: consider adding `parallel` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ark-serialize-derive v0.4.2
[INFO] [stderr]    Compiling ark-ff-asm v0.4.2
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling ark-ff-macros v0.4.2
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]     Checking ark-serialize v0.4.2
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]     Checking ark-ff v0.4.2
[INFO] [stderr]     Checking ark-poly v0.4.2
[INFO] [stderr]     Checking ark-ec v0.4.2
[INFO] [stderr]     Checking ark-test-curves v0.4.2
[INFO] [stdout] warning: unexpected `cfg` condition value: `parallel`
[INFO] [stdout]   --> src/lib.rs:52:15
[INFO] [stdout]    |
[INFO] [stdout] 52 |         #[cfg(feature = "parallel")]
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `ark-serialize-derive`, `default`, `derive`, and `std`
[INFO] [stdout]    = help: consider adding `parallel` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `parallel`
[INFO] [stdout]   --> src/lib.rs:57:19
[INFO] [stdout]    |
[INFO] [stdout] 57 |         #[cfg(not(feature = "parallel"))]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `ark-serialize-derive`, `default`, `derive`, and `std`
[INFO] [stdout]    = help: consider adding `parallel` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.96s
[INFO] running `Command { std: "docker" "inspect" "d03745a295b83678742586f88959ae12390aeb9b5d0d2baddc7ba5fce863cd34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d03745a295b83678742586f88959ae12390aeb9b5d0d2baddc7ba5fce863cd34", kill_on_drop: false }`
[INFO] [stdout] d03745a295b83678742586f88959ae12390aeb9b5d0d2baddc7ba5fce863cd34
