[INFO] fetching crate reweb3-num 0.2.4...
[INFO] building reweb3-num-0.2.4 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate reweb3-num 0.2.4 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate reweb3-num 0.2.4
[INFO] finished tweaking crates.io crate reweb3-num 0.2.4
[INFO] tweaked toml for crates.io crate reweb3-num 0.2.4 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate reweb3-num 0.2.4 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 26 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde-big-array v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9da2d61494c0dc3a840233e23996d12a721e2d0fe6bb4341f071376ceed30d07
[INFO] running `Command { std: "docker" "start" "-a" "9da2d61494c0dc3a840233e23996d12a721e2d0fe6bb4341f071376ceed30d07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9da2d61494c0dc3a840233e23996d12a721e2d0fe6bb4341f071376ceed30d07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9da2d61494c0dc3a840233e23996d12a721e2d0fe6bb4341f071376ceed30d07", kill_on_drop: false }`
[INFO] [stdout] 9da2d61494c0dc3a840233e23996d12a721e2d0fe6bb4341f071376ceed30d07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ecd2d41e9e90d6fa3c02c975039d7a576b04c4b26059a8270782f354e6cdb81
[INFO] running `Command { std: "docker" "start" "-a" "1ecd2d41e9e90d6fa3c02c975039d7a576b04c4b26059a8270782f354e6cdb81", kill_on_drop: false }`
[INFO] [stderr]    Compiling reweb3-num v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `impl_helper_buint`
[INFO] [stdout]   --> src/buint/as_float.rs:92:16
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub(crate) use impl_helper_buint;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `as_float`
[INFO] [stdout]   --> src/buint/float_as.rs:95:16
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub(crate) use as_float;
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:27:17
[INFO] [stdout]     |
[INFO] [stdout]  27 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_int` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:97:17
[INFO] [stdout]     |
[INFO] [stdout]  97 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `as_buint` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:168:17
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:182:17
[INFO] [stdout]     |
[INFO] [stdout] 182 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:192:17
[INFO] [stdout]     |
[INFO] [stdout] 192 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:206:17
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:224:13
[INFO] [stdout]     |
[INFO] [stdout] 224 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:232:13
[INFO] [stdout]     |
[INFO] [stdout] 232 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:27:17
[INFO] [stdout]     |
[INFO] [stdout]  27 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_int` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:97:17
[INFO] [stdout]     |
[INFO] [stdout]  97 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `as_buint` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:168:17
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:182:17
[INFO] [stdout]     |
[INFO] [stdout] 182 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:192:17
[INFO] [stdout]     |
[INFO] [stdout] 192 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:206:17
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:224:13
[INFO] [stdout]     |
[INFO] [stdout] 224 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:232:13
[INFO] [stdout]     |
[INFO] [stdout] 232 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:27:17
[INFO] [stdout]     |
[INFO] [stdout]  27 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_int` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:97:17
[INFO] [stdout]     |
[INFO] [stdout]  97 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `as_buint` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:168:17
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:182:17
[INFO] [stdout]     |
[INFO] [stdout] 182 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:192:17
[INFO] [stdout]     |
[INFO] [stdout] 192 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:206:17
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:224:13
[INFO] [stdout]     |
[INFO] [stdout] 224 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:232:13
[INFO] [stdout]     |
[INFO] [stdout] 232 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:27:17
[INFO] [stdout]     |
[INFO] [stdout]  27 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_int` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:97:17
[INFO] [stdout]     |
[INFO] [stdout]  97 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `as_buint` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:168:17
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:182:17
[INFO] [stdout]     |
[INFO] [stdout] 182 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:192:17
[INFO] [stdout]     |
[INFO] [stdout] 192 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:206:17
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:224:13
[INFO] [stdout]     |
[INFO] [stdout] 224 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:232:13
[INFO] [stdout]     |
[INFO] [stdout] 232 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:249:21
[INFO] [stdout]     |
[INFO] [stdout] 249 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout]  55 | buint_as_different_digit_bigint!(BUint, BInt, u64; (BUintD32, u32), (BUintD16, u16), (BUintD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:294:21
[INFO] [stdout]     |
[INFO] [stdout] 294 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout]  55 | buint_as_different_digit_bigint!(BUint, BInt, u64; (BUintD32, u32), (BUintD16, u16), (BUintD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:249:21
[INFO] [stdout]     |
[INFO] [stdout] 249 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:56:1
[INFO] [stdout]     |
[INFO] [stdout]  56 | buint_as_different_digit_bigint!(BUintD32, BIntD32, u32; (BUint, u64), (BUintD16, u16), (BUintD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:294:21
[INFO] [stdout]     |
[INFO] [stdout] 294 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:56:1
[INFO] [stdout]     |
[INFO] [stdout]  56 | buint_as_different_digit_bigint!(BUintD32, BIntD32, u32; (BUint, u64), (BUintD16, u16), (BUintD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:249:21
[INFO] [stdout]     |
[INFO] [stdout] 249 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:57:1
[INFO] [stdout]     |
[INFO] [stdout]  57 | buint_as_different_digit_bigint!(BUintD16, BIntD16, u16; (BUint, u64), (BUintD32, u32), (BUintD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:294:21
[INFO] [stdout]     |
[INFO] [stdout] 294 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:57:1
[INFO] [stdout]     |
[INFO] [stdout]  57 | buint_as_different_digit_bigint!(BUintD16, BIntD16, u16; (BUint, u64), (BUintD32, u32), (BUintD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:249:21
[INFO] [stdout]     |
[INFO] [stdout] 249 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:58:1
[INFO] [stdout]     |
[INFO] [stdout]  58 | buint_as_different_digit_bigint!(BUintD8, BIntD8, u8; (BUint, u64), (BUintD32, u32), (BUintD16, u16));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:294:21
[INFO] [stdout]     |
[INFO] [stdout] 294 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:58:1
[INFO] [stdout]     |
[INFO] [stdout]  58 | buint_as_different_digit_bigint!(BUintD8, BIntD8, u8; (BUint, u64), (BUintD32, u32), (BUintD16, u16));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:135:21
[INFO] [stdout]     |
[INFO] [stdout] 135 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:60:1
[INFO] [stdout]     |
[INFO] [stdout]  60 | bint_as_different_digit_bigint!(BUint, BInt, u64; (BIntD32, u32), (BIntD16, u16), (BIntD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:184:21
[INFO] [stdout]     |
[INFO] [stdout] 184 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:60:1
[INFO] [stdout]     |
[INFO] [stdout]  60 | bint_as_different_digit_bigint!(BUint, BInt, u64; (BIntD32, u32), (BIntD16, u16), (BIntD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:135:21
[INFO] [stdout]     |
[INFO] [stdout] 135 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:61:1
[INFO] [stdout]     |
[INFO] [stdout]  61 | bint_as_different_digit_bigint!(BUintD32, BIntD32, u32; (BInt, u64), (BIntD16, u16), (BIntD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:184:21
[INFO] [stdout]     |
[INFO] [stdout] 184 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:61:1
[INFO] [stdout]     |
[INFO] [stdout]  61 | bint_as_different_digit_bigint!(BUintD32, BIntD32, u32; (BInt, u64), (BIntD16, u16), (BIntD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:135:21
[INFO] [stdout]     |
[INFO] [stdout] 135 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:62:1
[INFO] [stdout]     |
[INFO] [stdout]  62 | bint_as_different_digit_bigint!(BUintD16, BIntD16, u16; (BInt, u64), (BIntD32, u32), (BIntD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:184:21
[INFO] [stdout]     |
[INFO] [stdout] 184 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:62:1
[INFO] [stdout]     |
[INFO] [stdout]  62 | bint_as_different_digit_bigint!(BUintD16, BIntD16, u16; (BInt, u64), (BIntD32, u32), (BIntD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:135:21
[INFO] [stdout]     |
[INFO] [stdout] 135 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:63:1
[INFO] [stdout]     |
[INFO] [stdout]  63 | bint_as_different_digit_bigint!(BUintD8, BIntD8, u8; (BInt, u64), (BIntD32, u32), (BIntD16, u16));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:184:21
[INFO] [stdout]     |
[INFO] [stdout] 184 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:63:1
[INFO] [stdout]     |
[INFO] [stdout]  63 | bint_as_different_digit_bigint!(BUintD8, BIntD8, u8; (BInt, u64), (BIntD32, u32), (BIntD16, u16));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.65s
[INFO] running `Command { std: "docker" "inspect" "1ecd2d41e9e90d6fa3c02c975039d7a576b04c4b26059a8270782f354e6cdb81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ecd2d41e9e90d6fa3c02c975039d7a576b04c4b26059a8270782f354e6cdb81", kill_on_drop: false }`
[INFO] [stdout] 1ecd2d41e9e90d6fa3c02c975039d7a576b04c4b26059a8270782f354e6cdb81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31187617679ea9e2a229bcf09d16299bf16fed1bb7c0140bbf70e49a5cca6876
[INFO] running `Command { std: "docker" "start" "-a" "31187617679ea9e2a229bcf09d16299bf16fed1bb7c0140bbf70e49a5cca6876", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stdout] warning: unused import: `impl_helper_buint`
[INFO] [stdout]   --> src/buint/as_float.rs:92:16
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub(crate) use impl_helper_buint;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `as_float`
[INFO] [stdout]   --> src/buint/float_as.rs:95:16
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub(crate) use as_float;
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:27:17
[INFO] [stdout]     |
[INFO] [stdout]  27 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_int` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:97:17
[INFO] [stdout]     |
[INFO] [stdout]  97 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `as_buint` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:168:17
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:182:17
[INFO] [stdout]     |
[INFO] [stdout] 182 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:192:17
[INFO] [stdout]     |
[INFO] [stdout] 192 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:206:17
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:224:13
[INFO] [stdout]     |
[INFO] [stdout] 224 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:232:13
[INFO] [stdout]     |
[INFO] [stdout] 232 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:27:17
[INFO] [stdout]     |
[INFO] [stdout]  27 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_int` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:97:17
[INFO] [stdout]     |
[INFO] [stdout]  97 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `as_buint` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:168:17
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:182:17
[INFO] [stdout]     |
[INFO] [stdout] 182 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:192:17
[INFO] [stdout]     |
[INFO] [stdout] 192 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:206:17
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:224:13
[INFO] [stdout]     |
[INFO] [stdout] 224 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:232:13
[INFO] [stdout]     |
[INFO] [stdout] 232 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:27:17
[INFO] [stdout]     |
[INFO] [stdout]  27 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_int` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:97:17
[INFO] [stdout]     |
[INFO] [stdout]  97 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `as_buint` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:168:17
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:182:17
[INFO] [stdout]     |
[INFO] [stdout] 182 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:192:17
[INFO] [stdout]     |
[INFO] [stdout] 192 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:206:17
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:224:13
[INFO] [stdout]     |
[INFO] [stdout] 224 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:232:13
[INFO] [stdout]     |
[INFO] [stdout] 232 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:27:17
[INFO] [stdout]     |
[INFO] [stdout]  27 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_int` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:97:17
[INFO] [stdout]     |
[INFO] [stdout]  97 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `as_buint` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:168:17
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:182:17
[INFO] [stdout]     |
[INFO] [stdout] 182 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:192:17
[INFO] [stdout]     |
[INFO] [stdout] 192 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:206:17
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:224:13
[INFO] [stdout]     |
[INFO] [stdout] 224 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:232:13
[INFO] [stdout]     |
[INFO] [stdout] 232 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:249:21
[INFO] [stdout]     |
[INFO] [stdout] 249 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout]  55 | buint_as_different_digit_bigint!(BUint, BInt, u64; (BUintD32, u32), (BUintD16, u16), (BUintD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:294:21
[INFO] [stdout]     |
[INFO] [stdout] 294 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout]  55 | buint_as_different_digit_bigint!(BUint, BInt, u64; (BUintD32, u32), (BUintD16, u16), (BUintD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:249:21
[INFO] [stdout]     |
[INFO] [stdout] 249 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:56:1
[INFO] [stdout]     |
[INFO] [stdout]  56 | buint_as_different_digit_bigint!(BUintD32, BIntD32, u32; (BUint, u64), (BUintD16, u16), (BUintD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:294:21
[INFO] [stdout]     |
[INFO] [stdout] 294 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:56:1
[INFO] [stdout]     |
[INFO] [stdout]  56 | buint_as_different_digit_bigint!(BUintD32, BIntD32, u32; (BUint, u64), (BUintD16, u16), (BUintD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:249:21
[INFO] [stdout]     |
[INFO] [stdout] 249 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:57:1
[INFO] [stdout]     |
[INFO] [stdout]  57 | buint_as_different_digit_bigint!(BUintD16, BIntD16, u16; (BUint, u64), (BUintD32, u32), (BUintD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:294:21
[INFO] [stdout]     |
[INFO] [stdout] 294 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:57:1
[INFO] [stdout]     |
[INFO] [stdout]  57 | buint_as_different_digit_bigint!(BUintD16, BIntD16, u16; (BUint, u64), (BUintD32, u32), (BUintD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:249:21
[INFO] [stdout]     |
[INFO] [stdout] 249 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:58:1
[INFO] [stdout]     |
[INFO] [stdout]  58 | buint_as_different_digit_bigint!(BUintD8, BIntD8, u8; (BUint, u64), (BUintD32, u32), (BUintD16, u16));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:294:21
[INFO] [stdout]     |
[INFO] [stdout] 294 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:58:1
[INFO] [stdout]     |
[INFO] [stdout]  58 | buint_as_different_digit_bigint!(BUintD8, BIntD8, u8; (BUint, u64), (BUintD32, u32), (BUintD16, u16));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:135:21
[INFO] [stdout]     |
[INFO] [stdout] 135 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:60:1
[INFO] [stdout]     |
[INFO] [stdout]  60 | bint_as_different_digit_bigint!(BUint, BInt, u64; (BIntD32, u32), (BIntD16, u16), (BIntD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:184:21
[INFO] [stdout]     |
[INFO] [stdout] 184 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:60:1
[INFO] [stdout]     |
[INFO] [stdout]  60 | bint_as_different_digit_bigint!(BUint, BInt, u64; (BIntD32, u32), (BIntD16, u16), (BIntD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:135:21
[INFO] [stdout]     |
[INFO] [stdout] 135 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:61:1
[INFO] [stdout]     |
[INFO] [stdout]  61 | bint_as_different_digit_bigint!(BUintD32, BIntD32, u32; (BInt, u64), (BIntD16, u16), (BIntD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:184:21
[INFO] [stdout]     |
[INFO] [stdout] 184 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:61:1
[INFO] [stdout]     |
[INFO] [stdout]  61 | bint_as_different_digit_bigint!(BUintD32, BIntD32, u32; (BInt, u64), (BIntD16, u16), (BIntD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:135:21
[INFO] [stdout]     |
[INFO] [stdout] 135 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:62:1
[INFO] [stdout]     |
[INFO] [stdout]  62 | bint_as_different_digit_bigint!(BUintD16, BIntD16, u16; (BInt, u64), (BIntD32, u32), (BIntD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:184:21
[INFO] [stdout]     |
[INFO] [stdout] 184 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:62:1
[INFO] [stdout]     |
[INFO] [stdout]  62 | bint_as_different_digit_bigint!(BUintD16, BIntD16, u16; (BInt, u64), (BIntD32, u32), (BIntD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:135:21
[INFO] [stdout]     |
[INFO] [stdout] 135 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:63:1
[INFO] [stdout]     |
[INFO] [stdout]  63 | bint_as_different_digit_bigint!(BUintD8, BIntD8, u8; (BInt, u64), (BIntD32, u32), (BIntD16, u16));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:184:21
[INFO] [stdout]     |
[INFO] [stdout] 184 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:63:1
[INFO] [stdout]     |
[INFO] [stdout]  63 | bint_as_different_digit_bigint!(BUintD8, BIntD8, u8; (BInt, u64), (BIntD32, u32), (BIntD16, u16));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling quickcheck v1.0.3
[INFO] [stderr]    Compiling reweb3-num v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `impl_helper_buint`
[INFO] [stdout]   --> src/buint/as_float.rs:92:16
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub(crate) use impl_helper_buint;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `as_float`
[INFO] [stdout]   --> src/buint/float_as.rs:95:16
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub(crate) use as_float;
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:27:17
[INFO] [stdout]     |
[INFO] [stdout]  27 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_int` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:97:17
[INFO] [stdout]     |
[INFO] [stdout]  97 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `as_buint` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:168:17
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:182:17
[INFO] [stdout]     |
[INFO] [stdout] 182 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:192:17
[INFO] [stdout]     |
[INFO] [stdout] 192 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:206:17
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:224:13
[INFO] [stdout]     |
[INFO] [stdout] 224 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:232:13
[INFO] [stdout]     |
[INFO] [stdout] 232 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:27:17
[INFO] [stdout]     |
[INFO] [stdout]  27 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_int` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:97:17
[INFO] [stdout]     |
[INFO] [stdout]  97 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `as_buint` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:168:17
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:182:17
[INFO] [stdout]     |
[INFO] [stdout] 182 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:192:17
[INFO] [stdout]     |
[INFO] [stdout] 192 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:206:17
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:224:13
[INFO] [stdout]     |
[INFO] [stdout] 224 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:232:13
[INFO] [stdout]     |
[INFO] [stdout] 232 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:27:17
[INFO] [stdout]     |
[INFO] [stdout]  27 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_int` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:97:17
[INFO] [stdout]     |
[INFO] [stdout]  97 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `as_buint` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:168:17
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:182:17
[INFO] [stdout]     |
[INFO] [stdout] 182 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:192:17
[INFO] [stdout]     |
[INFO] [stdout] 192 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:206:17
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:224:13
[INFO] [stdout]     |
[INFO] [stdout] 224 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:232:13
[INFO] [stdout]     |
[INFO] [stdout] 232 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:27:17
[INFO] [stdout]     |
[INFO] [stdout]  27 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_int` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:46:13
[INFO] [stdout]     |
[INFO] [stdout]  46 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_float` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:97:17
[INFO] [stdout]     |
[INFO] [stdout]  97 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `as_buint` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:168:17
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:182:17
[INFO] [stdout]     |
[INFO] [stdout] 182 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:192:17
[INFO] [stdout]     |
[INFO] [stdout] 192 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:206:17
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:224:13
[INFO] [stdout]     |
[INFO] [stdout] 224 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:232:13
[INFO] [stdout]     |
[INFO] [stdout] 232 |             #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | crate::macro_impl!(cast);
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `cast` which comes from the expansion of the macro `crate::macro_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:249:21
[INFO] [stdout]     |
[INFO] [stdout] 249 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout]  55 | buint_as_different_digit_bigint!(BUint, BInt, u64; (BUintD32, u32), (BUintD16, u16), (BUintD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:294:21
[INFO] [stdout]     |
[INFO] [stdout] 294 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout]  55 | buint_as_different_digit_bigint!(BUint, BInt, u64; (BUintD32, u32), (BUintD16, u16), (BUintD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:249:21
[INFO] [stdout]     |
[INFO] [stdout] 249 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:56:1
[INFO] [stdout]     |
[INFO] [stdout]  56 | buint_as_different_digit_bigint!(BUintD32, BIntD32, u32; (BUint, u64), (BUintD16, u16), (BUintD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:294:21
[INFO] [stdout]     |
[INFO] [stdout] 294 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:56:1
[INFO] [stdout]     |
[INFO] [stdout]  56 | buint_as_different_digit_bigint!(BUintD32, BIntD32, u32; (BUint, u64), (BUintD16, u16), (BUintD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:249:21
[INFO] [stdout]     |
[INFO] [stdout] 249 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:57:1
[INFO] [stdout]     |
[INFO] [stdout]  57 | buint_as_different_digit_bigint!(BUintD16, BIntD16, u16; (BUint, u64), (BUintD32, u32), (BUintD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:294:21
[INFO] [stdout]     |
[INFO] [stdout] 294 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:57:1
[INFO] [stdout]     |
[INFO] [stdout]  57 | buint_as_different_digit_bigint!(BUintD16, BIntD16, u16; (BUint, u64), (BUintD32, u32), (BUintD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:249:21
[INFO] [stdout]     |
[INFO] [stdout] 249 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:58:1
[INFO] [stdout]     |
[INFO] [stdout]  58 | buint_as_different_digit_bigint!(BUintD8, BIntD8, u8; (BUint, u64), (BUintD32, u32), (BUintD16, u16));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/buint/cast.rs:294:21
[INFO] [stdout]     |
[INFO] [stdout] 294 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:58:1
[INFO] [stdout]     |
[INFO] [stdout]  58 | buint_as_different_digit_bigint!(BUintD8, BIntD8, u8; (BUint, u64), (BUintD32, u32), (BUintD16, u16));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `buint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:135:21
[INFO] [stdout]     |
[INFO] [stdout] 135 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:60:1
[INFO] [stdout]     |
[INFO] [stdout]  60 | bint_as_different_digit_bigint!(BUint, BInt, u64; (BIntD32, u32), (BIntD16, u16), (BIntD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:184:21
[INFO] [stdout]     |
[INFO] [stdout] 184 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:60:1
[INFO] [stdout]     |
[INFO] [stdout]  60 | bint_as_different_digit_bigint!(BUint, BInt, u64; (BIntD32, u32), (BIntD16, u16), (BIntD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:135:21
[INFO] [stdout]     |
[INFO] [stdout] 135 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:61:1
[INFO] [stdout]     |
[INFO] [stdout]  61 | bint_as_different_digit_bigint!(BUintD32, BIntD32, u32; (BInt, u64), (BIntD16, u16), (BIntD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:184:21
[INFO] [stdout]     |
[INFO] [stdout] 184 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:61:1
[INFO] [stdout]     |
[INFO] [stdout]  61 | bint_as_different_digit_bigint!(BUintD32, BIntD32, u32; (BInt, u64), (BIntD16, u16), (BIntD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:135:21
[INFO] [stdout]     |
[INFO] [stdout] 135 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:62:1
[INFO] [stdout]     |
[INFO] [stdout]  62 | bint_as_different_digit_bigint!(BUintD16, BIntD16, u16; (BInt, u64), (BIntD32, u32), (BIntD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:184:21
[INFO] [stdout]     |
[INFO] [stdout] 184 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:62:1
[INFO] [stdout]     |
[INFO] [stdout]  62 | bint_as_different_digit_bigint!(BUintD16, BIntD16, u16; (BInt, u64), (BIntD32, u32), (BIntD8, u8));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:135:21
[INFO] [stdout]     |
[INFO] [stdout] 135 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:63:1
[INFO] [stdout]     |
[INFO] [stdout]  63 | bint_as_different_digit_bigint!(BUintD8, BIntD8, u8; (BInt, u64), (BIntD32, u32), (BIntD16, u16));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/bint/cast.rs:184:21
[INFO] [stdout]     |
[INFO] [stdout] 184 |                     #[must_use = doc::must_use_op!()]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:63:1
[INFO] [stdout]     |
[INFO] [stdout]  63 | bint_as_different_digit_bigint!(BUintD8, BIntD8, u8; (BInt, u64), (BIntD32, u32), (BIntD16, u16));
[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]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: this warning originates in the macro `bint_as_different_digit_bigint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 12.17s
[INFO] running `Command { std: "docker" "inspect" "31187617679ea9e2a229bcf09d16299bf16fed1bb7c0140bbf70e49a5cca6876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31187617679ea9e2a229bcf09d16299bf16fed1bb7c0140bbf70e49a5cca6876", kill_on_drop: false }`
[INFO] [stdout] 31187617679ea9e2a229bcf09d16299bf16fed1bb7c0140bbf70e49a5cca6876