[INFO] cloning repository https://github.com/SkylerLipthay/ducc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SkylerLipthay/ducc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSkylerLipthay%2Fducc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSkylerLipthay%2Fducc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 58c7b7ab54e55297ddc848f99bca069379c49a8d
[INFO] checking SkylerLipthay/ducc against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSkylerLipthay%2Fducc" "/workspace/builds/worker-77/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-77/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SkylerLipthay/ducc on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SkylerLipthay/ducc
[INFO] finished tweaking git repo https://github.com/SkylerLipthay/ducc
[INFO] tweaked toml for git repo https://github.com/SkylerLipthay/ducc written to /workspace/builds/worker-77/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9ea68c6f4d818a89e96d4ac47562aecfa5421d1842f61d1bd0ba9ecb8fc57d9
[INFO] running `Command { std: "docker" "start" "-a" "e9ea68c6f4d818a89e96d4ac47562aecfa5421d1842f61d1bd0ba9ecb8fc57d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9ea68c6f4d818a89e96d4ac47562aecfa5421d1842f61d1bd0ba9ecb8fc57d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9ea68c6f4d818a89e96d4ac47562aecfa5421d1842f61d1bd0ba9ecb8fc57d9", kill_on_drop: false }`
[INFO] [stdout] e9ea68c6f4d818a89e96d4ac47562aecfa5421d1842f61d1bd0ba9ecb8fc57d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1aa522cb88c0515116f162d127f446c7c8cad7023a075d62a223bbfbaec8431
[INFO] running `Command { std: "docker" "start" "-a" "e1aa522cb88c0515116f162d127f446c7c8cad7023a075d62a223bbfbaec8431", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]    Compiling serde v1.0.129
[INFO] [stderr]    Compiling ducc-sys v0.1.2 (/opt/rustwide/workdir/ducc-sys)
[INFO] [stderr]     Checking ducc v0.1.5 (/opt/rustwide/workdir/ducc)
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> ducc-sys/src/bindings.rs:421:19
[INFO] [stdout]     |
[INFO] [stdout] 421 |         unsafe { &(*(::std::ptr::null::<duk_thread_state>())).data as *const _ as usize },
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deref_nullptr)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> ducc-sys/src/bindings.rs:452:19
[INFO] [stdout]     |
[INFO] [stdout] 452 |         unsafe { &(*(::std::ptr::null::<duk_memory_functions>())).alloc_func as *const _ as usize },
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> ducc-sys/src/bindings.rs:463:14
[INFO] [stdout]     |
[INFO] [stdout] 463 |             &(*(::std::ptr::null::<duk_memory_functions>())).realloc_func as *const _ as usize
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> ducc-sys/src/bindings.rs:474:19
[INFO] [stdout]     |
[INFO] [stdout] 474 |         unsafe { &(*(::std::ptr::null::<duk_memory_functions>())).free_func as *const _ as usize },
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> ducc-sys/src/bindings.rs:484:19
[INFO] [stdout]     |
[INFO] [stdout] 484 |         unsafe { &(*(::std::ptr::null::<duk_memory_functions>())).udata as *const _ as usize },
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> ducc-sys/src/bindings.rs:514:19
[INFO] [stdout]     |
[INFO] [stdout] 514 |         unsafe { &(*(::std::ptr::null::<duk_function_list_entry>())).key as *const _ as usize },
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> ducc-sys/src/bindings.rs:524:19
[INFO] [stdout]     |
[INFO] [stdout] 524 |         unsafe { &(*(::std::ptr::null::<duk_function_list_entry>())).value as *const _ as usize },
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> ducc-sys/src/bindings.rs:534:19
[INFO] [stdout]     |
[INFO] [stdout] 534 |         unsafe { &(*(::std::ptr::null::<duk_function_list_entry>())).nargs as *const _ as usize },
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> ducc-sys/src/bindings.rs:563:19
[INFO] [stdout]     |
[INFO] [stdout] 563 |         unsafe { &(*(::std::ptr::null::<duk_number_list_entry>())).key as *const _ as usize },
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> ducc-sys/src/bindings.rs:573:19
[INFO] [stdout]     |
[INFO] [stdout] 573 |         unsafe { &(*(::std::ptr::null::<duk_number_list_entry>())).value as *const _ as usize },
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> ducc-sys/src/bindings.rs:608:19
[INFO] [stdout]     |
[INFO] [stdout] 608 |         unsafe { &(*(::std::ptr::null::<duk_time_components>())).year as *const _ as usize },
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> ducc-sys/src/bindings.rs:618:19
[INFO] [stdout]     |
[INFO] [stdout] 618 |         unsafe { &(*(::std::ptr::null::<duk_time_components>())).month as *const _ as usize },
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> ducc-sys/src/bindings.rs:628:19
[INFO] [stdout]     |
[INFO] [stdout] 628 |         unsafe { &(*(::std::ptr::null::<duk_time_components>())).day as *const _ as usize },
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> ducc-sys/src/bindings.rs:638:19
[INFO] [stdout]     |
[INFO] [stdout] 638 |         unsafe { &(*(::std::ptr::null::<duk_time_components>())).hours as *const _ as usize },
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> ducc-sys/src/bindings.rs:648:19
[INFO] [stdout]     |
[INFO] [stdout] 648 |         unsafe { &(*(::std::ptr::null::<duk_time_components>())).minutes as *const _ as usize },
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> ducc-sys/src/bindings.rs:658:19
[INFO] [stdout]     |
[INFO] [stdout] 658 |         unsafe { &(*(::std::ptr::null::<duk_time_components>())).seconds as *const _ as usize },
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> ducc-sys/src/bindings.rs:669:14
[INFO] [stdout]     |
[INFO] [stdout] 669 |             &(*(::std::ptr::null::<duk_time_components>())).milliseconds as *const _ as usize
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> ducc-sys/src/bindings.rs:680:19
[INFO] [stdout]     |
[INFO] [stdout] 680 |         unsafe { &(*(::std::ptr::null::<duk_time_components>())).weekday as *const _ as usize },
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]     --> ducc-sys/src/bindings.rs:2180:19
[INFO] [stdout]      |
[INFO] [stdout] 2180 |         unsafe { &(*(::std::ptr::null::<__va_list_tag>())).gp_offset as *const _ as usize },
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]     --> ducc-sys/src/bindings.rs:2190:19
[INFO] [stdout]      |
[INFO] [stdout] 2190 |         unsafe { &(*(::std::ptr::null::<__va_list_tag>())).fp_offset as *const _ as usize },
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]     --> ducc-sys/src/bindings.rs:2200:19
[INFO] [stdout]      |
[INFO] [stdout] 2200 |         unsafe { &(*(::std::ptr::null::<__va_list_tag>())).overflow_arg_area as *const _ as usize },
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]     --> ducc-sys/src/bindings.rs:2210:19
[INFO] [stdout]      |
[INFO] [stdout] 2210 |         unsafe { &(*(::std::ptr::null::<__va_list_tag>())).reg_save_area as *const _ as usize },
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 419 | impl_tuple!(A);
[INFO] [stdout]     | --------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 419 | impl_tuple!(A);
[INFO] [stdout]     | --------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 420 | impl_tuple!(A, B);
[INFO] [stdout]     | ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 420 | impl_tuple!(A, B);
[INFO] [stdout]     | ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 421 | impl_tuple!(A, B, C);
[INFO] [stdout]     | --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 421 | impl_tuple!(A, B, C);
[INFO] [stdout]     | --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 422 | impl_tuple!(A, B, C, D);
[INFO] [stdout]     | ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 422 | impl_tuple!(A, B, C, D);
[INFO] [stdout]     | ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 423 | impl_tuple!(A, B, C, D, E);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 423 | impl_tuple!(A, B, C, D, E);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 424 | impl_tuple!(A, B, C, D, E, F);
[INFO] [stdout]     | ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 424 | impl_tuple!(A, B, C, D, E, F);
[INFO] [stdout]     | ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 425 | impl_tuple!(A, B, C, D, E, F, G);
[INFO] [stdout]     | --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 425 | impl_tuple!(A, B, C, D, E, F, G);
[INFO] [stdout]     | --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 426 | impl_tuple!(A, B, C, D, E, F, G, H);
[INFO] [stdout]     | ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 426 | impl_tuple!(A, B, C, D, E, F, G, H);
[INFO] [stdout]     | ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 427 | impl_tuple!(A, B, C, D, E, F, G, H, I);
[INFO] [stdout]     | --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 427 | impl_tuple!(A, B, C, D, E, F, G, H, I);
[INFO] [stdout]     | --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 428 | impl_tuple!(A, B, C, D, E, F, G, H, I, J);
[INFO] [stdout]     | ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 428 | impl_tuple!(A, B, C, D, E, F, G, H, I, J);
[INFO] [stdout]     | ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 429 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K);
[INFO] [stdout]     | --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 429 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K);
[INFO] [stdout]     | --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 430 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K, L);
[INFO] [stdout]     | ------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 430 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K, L);
[INFO] [stdout]     | ------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 431 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K, L, M);
[INFO] [stdout]     | --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 431 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K, L, M);
[INFO] [stdout]     | --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 432 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K, L, M, N);
[INFO] [stdout]     | ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 432 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K, L, M, N);
[INFO] [stdout]     | ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 433 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O);
[INFO] [stdout]     | --------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 433 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O);
[INFO] [stdout]     | --------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 434 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P);
[INFO] [stdout]     | ------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 434 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P);
[INFO] [stdout]     | ------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 32 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ducc-serde v0.1.0 (/opt/rustwide/workdir/ducc-serde)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 419 | impl_tuple!(A);
[INFO] [stdout]     | --------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 419 | impl_tuple!(A);
[INFO] [stdout]     | --------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 420 | impl_tuple!(A, B);
[INFO] [stdout]     | ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 420 | impl_tuple!(A, B);
[INFO] [stdout]     | ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 421 | impl_tuple!(A, B, C);
[INFO] [stdout]     | --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 421 | impl_tuple!(A, B, C);
[INFO] [stdout]     | --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 422 | impl_tuple!(A, B, C, D);
[INFO] [stdout]     | ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 422 | impl_tuple!(A, B, C, D);
[INFO] [stdout]     | ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 423 | impl_tuple!(A, B, C, D, E);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 423 | impl_tuple!(A, B, C, D, E);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 424 | impl_tuple!(A, B, C, D, E, F);
[INFO] [stdout]     | ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 424 | impl_tuple!(A, B, C, D, E, F);
[INFO] [stdout]     | ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 425 | impl_tuple!(A, B, C, D, E, F, G);
[INFO] [stdout]     | --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 425 | impl_tuple!(A, B, C, D, E, F, G);
[INFO] [stdout]     | --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 426 | impl_tuple!(A, B, C, D, E, F, G, H);
[INFO] [stdout]     | ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 426 | impl_tuple!(A, B, C, D, E, F, G, H);
[INFO] [stdout]     | ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 427 | impl_tuple!(A, B, C, D, E, F, G, H, I);
[INFO] [stdout]     | --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 427 | impl_tuple!(A, B, C, D, E, F, G, H, I);
[INFO] [stdout]     | --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 428 | impl_tuple!(A, B, C, D, E, F, G, H, I, J);
[INFO] [stdout]     | ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 428 | impl_tuple!(A, B, C, D, E, F, G, H, I, J);
[INFO] [stdout]     | ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 429 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K);
[INFO] [stdout]     | --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 429 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K);
[INFO] [stdout]     | --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 430 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K, L);
[INFO] [stdout]     | ------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 430 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K, L);
[INFO] [stdout]     | ------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 431 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K, L, M);
[INFO] [stdout]     | --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 431 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K, L, M);
[INFO] [stdout]     | --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 432 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K, L, M, N);
[INFO] [stdout]     | ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 432 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K, L, M, N);
[INFO] [stdout]     | ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 433 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O);
[INFO] [stdout]     | --------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 433 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O);
[INFO] [stdout]     | --------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:348:39
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 434 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P);
[INFO] [stdout]     | ------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let reservation = $({ let _ = &$name; 1 } +)* 0;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> ducc/src/conversion.rs:377:39
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       ^^^^^^ the borrow produces a value
[INFO] [stdout] ...
[INFO] [stdout] 434 | impl_tuple!(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P);
[INFO] [stdout]     | ------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_tuple` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |                 let reservation = $({ let _ = &$name; 1 } +)* 1;
[INFO] [stdout]     |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 32 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.08s
[INFO] running `Command { std: "docker" "inspect" "e1aa522cb88c0515116f162d127f446c7c8cad7023a075d62a223bbfbaec8431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1aa522cb88c0515116f162d127f446c7c8cad7023a075d62a223bbfbaec8431", kill_on_drop: false }`
[INFO] [stdout] e1aa522cb88c0515116f162d127f446c7c8cad7023a075d62a223bbfbaec8431