[INFO] fetching crate valrow 0.0.0-2024-02-13...
[INFO] testing valrow-0.0.0-2024-02-13 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate valrow 0.0.0-2024-02-13 into /workspace/builds/worker-6-tc2/source
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate valrow 0.0.0-2024-02-13
[INFO] finished tweaking crates.io crate valrow 0.0.0-2024-02-13
[INFO] tweaked toml for crates.io crate valrow 0.0.0-2024-02-13 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate valrow 0.0.0-2024-02-13 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate valrow 0.0.0-2024-02-13 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" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9174c1edd5638c2b59db73916cc4b6f9536afbde9c136093357bb71350945d8e
[INFO] running `Command { std: "docker" "start" "-a" "9174c1edd5638c2b59db73916cc4b6f9536afbde9c136093357bb71350945d8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9174c1edd5638c2b59db73916cc4b6f9536afbde9c136093357bb71350945d8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9174c1edd5638c2b59db73916cc4b6f9536afbde9c136093357bb71350945d8e", kill_on_drop: false }`
[INFO] [stdout] 9174c1edd5638c2b59db73916cc4b6f9536afbde9c136093357bb71350945d8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f84dcc170632957b28738ee759107bcd4ace67659ed842f41b22b8f2eeebcce
[INFO] running `Command { std: "docker" "start" "-a" "0f84dcc170632957b28738ee759107bcd4ace67659ed842f41b22b8f2eeebcce", kill_on_drop: false }`
[INFO] [stderr]    Compiling valrow v0.0.0-2024-02-13 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `xxx`
[INFO] [stdout]    --> src/borrowable.rs:133:7
[INFO] [stdout]     |
[INFO] [stdout] 133 | #[cfg(xxx)] unsafe impl<T: Copy> Borrowable for T { type Abi = T; }
[INFO] [stdout]     |       ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(xxx)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(xxx)");` to the top of the `build.rs`
[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 name: `xxx_borrowable_box`
[INFO] [stdout]    --> src/borrowable.rs:157:7
[INFO] [stdout]     |
[INFO] [stdout] 157 | #[cfg(xxx_borrowable_box)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(xxx_borrowable_box)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(xxx_borrowable_box)");` to the top of the `build.rs`
[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: unexpected `cfg` condition name: `xxx`
[INFO] [stdout]    --> src/borrowable.rs:100:11
[INFO] [stdout]     |
[INFO] [stdout] 100 |     #[cfg(xxx)] fn as_abi(&self) -> Self::Abi { unsafe { *core::mem::transmute::<&Self, &Self::Abi>(self) } }
[INFO] [stdout]     |           ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(xxx)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(xxx)");` to the top of the `build.rs`
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "0f84dcc170632957b28738ee759107bcd4ace67659ed842f41b22b8f2eeebcce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f84dcc170632957b28738ee759107bcd4ace67659ed842f41b22b8f2eeebcce", kill_on_drop: false }`
[INFO] [stdout] 0f84dcc170632957b28738ee759107bcd4ace67659ed842f41b22b8f2eeebcce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f4b69ca41190cdc18557461c309bc7666b028e75b1c2e6e027253b99265d4aa
[INFO] running `Command { std: "docker" "start" "-a" "3f4b69ca41190cdc18557461c309bc7666b028e75b1c2e6e027253b99265d4aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling bytemuck v1.14.3
[INFO] [stderr]    Compiling abistr-macros v0.1.0
[INFO] [stdout] warning: unexpected `cfg` condition name: `xxx`
[INFO] [stdout]    --> src/borrowable.rs:133:7
[INFO] [stdout]     |
[INFO] [stdout] 133 | #[cfg(xxx)] unsafe impl<T: Copy> Borrowable for T { type Abi = T; }
[INFO] [stdout]     |       ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(xxx)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(xxx)");` to the top of the `build.rs`
[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 name: `xxx_borrowable_box`
[INFO] [stdout]    --> src/borrowable.rs:157:7
[INFO] [stdout]     |
[INFO] [stdout] 157 | #[cfg(xxx_borrowable_box)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(xxx_borrowable_box)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(xxx_borrowable_box)");` to the top of the `build.rs`
[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: unexpected `cfg` condition name: `xxx`
[INFO] [stdout]    --> src/borrowable.rs:100:11
[INFO] [stdout]     |
[INFO] [stdout] 100 |     #[cfg(xxx)] fn as_abi(&self) -> Self::Abi { unsafe { *core::mem::transmute::<&Self, &Self::Abi>(self) } }
[INFO] [stdout]     |           ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(xxx)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(xxx)");` to the top of the `build.rs`
[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] [stderr]    Compiling ialloc v0.0.0-2023-05-28
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling abistr v0.1.1
[INFO] [stderr]    Compiling valrow v0.0.0-2024-02-13 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `xxx`
[INFO] [stdout]    --> src/borrowable.rs:133:7
[INFO] [stdout]     |
[INFO] [stdout] 133 | #[cfg(xxx)] unsafe impl<T: Copy> Borrowable for T { type Abi = T; }
[INFO] [stdout]     |       ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(xxx)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(xxx)");` to the top of the `build.rs`
[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 name: `xxx_borrowable_box`
[INFO] [stdout]    --> src/borrowable.rs:157:7
[INFO] [stdout]     |
[INFO] [stdout] 157 | #[cfg(xxx_borrowable_box)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(xxx_borrowable_box)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(xxx_borrowable_box)");` to the top of the `build.rs`
[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: unexpected `cfg` condition name: `xxx`
[INFO] [stdout]    --> src/borrowable.rs:100:11
[INFO] [stdout]     |
[INFO] [stdout] 100 |     #[cfg(xxx)] fn as_abi(&self) -> Self::Abi { unsafe { *core::mem::transmute::<&Self, &Self::Abi>(self) } }
[INFO] [stdout]     |           ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(xxx)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(xxx)");` to the top of the `build.rs`
[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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.29s
[INFO] running `Command { std: "docker" "inspect" "3f4b69ca41190cdc18557461c309bc7666b028e75b1c2e6e027253b99265d4aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f4b69ca41190cdc18557461c309bc7666b028e75b1c2e6e027253b99265d4aa", kill_on_drop: false }`
[INFO] [stdout] 3f4b69ca41190cdc18557461c309bc7666b028e75b1c2e6e027253b99265d4aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 53e5b72264376540bc559e074c5085463303580f499a891f98466db9a80db193
[INFO] running `Command { std: "docker" "start" "-a" "53e5b72264376540bc559e074c5085463303580f499a891f98466db9a80db193", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition name: `xxx`
[INFO] [stderr]    --> src/borrowable.rs:133:7
[INFO] [stderr]     |
[INFO] [stderr] 133 | #[cfg(xxx)] unsafe impl<T: Copy> Borrowable for T { type Abi = T; }
[INFO] [stderr]     |       ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(xxx)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(xxx)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `xxx_borrowable_box`
[INFO] [stderr]    --> src/borrowable.rs:157:7
[INFO] [stderr]     |
[INFO] [stderr] 157 | #[cfg(xxx_borrowable_box)]
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(xxx_borrowable_box)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(xxx_borrowable_box)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `xxx`
[INFO] [stderr]    --> src/borrowable.rs:100:11
[INFO] [stderr]     |
[INFO] [stderr] 100 |     #[cfg(xxx)] fn as_abi(&self) -> Self::Abi { unsafe { *core::mem::transmute::<&Self, &Self::Abi>(self) } }
[INFO] [stderr]     |           ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(xxx)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(xxx)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: `valrow` (lib) generated 3 warnings
[INFO] [stderr] warning: `valrow` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/_lib.rs (/opt/rustwide/target/debug/deps/valrow-37310f4eea6907c1)
[INFO] [stderr]    Doc-tests valrow
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/borrowable.rs - borrowable::Borrowable (line 58) ... ok
[INFO] [stdout] test src/borrowable.rs - borrowable::Borrowable (line 14) ... ok
[INFO] [stdout] test src/../examples/zst_callbacks/_zst_callbacks.rs - Examples::ZstCallbacks (line 3) ... ok
[INFO] [stdout] test src/../examples/terrible_cpp/_terrible_cpp.rs - Examples::TerribleCxx (line 44) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.60s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "53e5b72264376540bc559e074c5085463303580f499a891f98466db9a80db193", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53e5b72264376540bc559e074c5085463303580f499a891f98466db9a80db193", kill_on_drop: false }`
[INFO] [stdout] 53e5b72264376540bc559e074c5085463303580f499a891f98466db9a80db193
