[INFO] fetching crate rust-gmp-serde 0.5.0...
[INFO] checking rust-gmp-serde-0.5.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate rust-gmp-serde 0.5.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate rust-gmp-serde 0.5.0
[INFO] finished tweaking crates.io crate rust-gmp-serde 0.5.0
[INFO] tweaked toml for crates.io crate rust-gmp-serde 0.5.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-gmp-serde 0.5.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 13 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4cc1351758885d594ee8f42ef7a69c1bef7b9127db23531a8e2580eadad0dd7f
[INFO] running `Command { std: "docker" "start" "-a" "4cc1351758885d594ee8f42ef7a69c1bef7b9127db23531a8e2580eadad0dd7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4cc1351758885d594ee8f42ef7a69c1bef7b9127db23531a8e2580eadad0dd7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cc1351758885d594ee8f42ef7a69c1bef7b9127db23531a8e2580eadad0dd7f", kill_on_drop: false }`
[INFO] [stdout] 4cc1351758885d594ee8f42ef7a69c1bef7b9127db23531a8e2580eadad0dd7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07a44ade9b58ef416dc7c256a6c83697123cef763a6502c299c28d6d369d421b
[INFO] running `Command { std: "docker" "start" "-a" "07a44ade9b58ef416dc7c256a6c83697123cef763a6502c299c28d6d369d421b", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking rust-gmp-serde v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]  --> src/mpz.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::mem::{uninitialized,size_of};
[INFO] [stdout]   |                ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/lib.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![warn(deprecated)]
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/mpz.rs:178:27
[INFO] [stdout]     |
[INFO] [stdout] 178 |             let mut mpz = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/mpz.rs:186:27
[INFO] [stdout]     |
[INFO] [stdout] 186 |             let mut mpz = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/mpz.rs:241:27
[INFO] [stdout]     |
[INFO] [stdout] 241 |             let mut mpz = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/mpz.rs:490:27
[INFO] [stdout]     |
[INFO] [stdout] 490 |             let mut mpz = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/mpz.rs:527:27
[INFO] [stdout]     |
[INFO] [stdout] 527 |             let mut mpz = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/mpq.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::mem::uninitialized;
[INFO] [stdout]    |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/mpq.rs:75:27
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let mut mpq = uninitialized();
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]  --> src/mpf.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::mem::uninitialized;
[INFO] [stdout]   |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/mpf.rs:84:27
[INFO] [stdout]    |
[INFO] [stdout] 84 |             let mut mpf = uninitialized();
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/mpf.rs:204:27
[INFO] [stdout]     |
[INFO] [stdout] 204 |             let mut mpf = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]  --> src/rand.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::mem::uninitialized;
[INFO] [stdout]   |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/rand.rs:44:51
[INFO] [stdout]    |
[INFO] [stdout] 44 |             let mut state: gmp_randstate_struct = uninitialized();
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/rand.rs:52:51
[INFO] [stdout]    |
[INFO] [stdout] 52 |             let mut state: gmp_randstate_struct = uninitialized();
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/rand.rs:60:51
[INFO] [stdout]    |
[INFO] [stdout] 60 |             let mut state: gmp_randstate_struct = uninitialized();
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/rand.rs:68:51
[INFO] [stdout]    |
[INFO] [stdout] 68 |             let mut state: gmp_randstate_struct = uninitialized();
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/rand.rs:104:51
[INFO] [stdout]     |
[INFO] [stdout] 104 |             let mut state: gmp_randstate_struct = uninitialized();
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/mpz.rs:519:40
[INFO] [stdout]     |
[INFO] [stdout] 519 |     fn cause(&self) -> Option<&'static Error> {
[INFO] [stdout]     |                                        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 519 |     fn cause(&self) -> Option<&'static dyn Error> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/mpq.rs:209:40
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn cause(&self) -> Option<&'static Error> {
[INFO] [stdout]     |                                        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn cause(&self) -> Option<&'static dyn Error> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/mpz.rs:510:14
[INFO] [stdout]     |
[INFO] [stdout] 510 |         self.description().fmt(f)
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/mpq.rs:200:14
[INFO] [stdout]     |
[INFO] [stdout] 200 |         self.description().fmt(f)
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]  --> src/mpz.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::mem::{uninitialized,size_of};
[INFO] [stdout]   |                ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/lib.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![warn(deprecated)]
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/mpz.rs:178:27
[INFO] [stdout]     |
[INFO] [stdout] 178 |             let mut mpz = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/mpz.rs:186:27
[INFO] [stdout]     |
[INFO] [stdout] 186 |             let mut mpz = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/mpz.rs:241:27
[INFO] [stdout]     |
[INFO] [stdout] 241 |             let mut mpz = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/mpz.rs:490:27
[INFO] [stdout]     |
[INFO] [stdout] 490 |             let mut mpz = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/mpz.rs:527:27
[INFO] [stdout]     |
[INFO] [stdout] 527 |             let mut mpz = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/mpq.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::mem::uninitialized;
[INFO] [stdout]    |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/mpq.rs:75:27
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let mut mpq = uninitialized();
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]  --> src/mpf.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::mem::uninitialized;
[INFO] [stdout]   |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/mpf.rs:84:27
[INFO] [stdout]    |
[INFO] [stdout] 84 |             let mut mpf = uninitialized();
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/mpf.rs:204:27
[INFO] [stdout]     |
[INFO] [stdout] 204 |             let mut mpf = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]  --> src/rand.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::mem::uninitialized;
[INFO] [stdout]   |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/rand.rs:44:51
[INFO] [stdout]    |
[INFO] [stdout] 44 |             let mut state: gmp_randstate_struct = uninitialized();
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/rand.rs:52:51
[INFO] [stdout]    |
[INFO] [stdout] 52 |             let mut state: gmp_randstate_struct = uninitialized();
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/rand.rs:60:51
[INFO] [stdout]    |
[INFO] [stdout] 60 |             let mut state: gmp_randstate_struct = uninitialized();
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/rand.rs:68:51
[INFO] [stdout]    |
[INFO] [stdout] 68 |             let mut state: gmp_randstate_struct = uninitialized();
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/rand.rs:104:51
[INFO] [stdout]     |
[INFO] [stdout] 104 |             let mut state: gmp_randstate_struct = uninitialized();
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/mpz.rs:519:40
[INFO] [stdout]     |
[INFO] [stdout] 519 |     fn cause(&self) -> Option<&'static Error> {
[INFO] [stdout]     |                                        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 519 |     fn cause(&self) -> Option<&'static dyn Error> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/mpq.rs:209:40
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn cause(&self) -> Option<&'static Error> {
[INFO] [stdout]     |                                        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn cause(&self) -> Option<&'static dyn Error> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `mpz_struct` does not permit being left uninitialized
[INFO] [stdout]    --> src/mpz.rs:178:27
[INFO] [stdout]     |
[INFO] [stdout] 178 |             let mut mpz = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this code causes undefined behavior when executed
[INFO] [stdout]     |                           help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]    --> src/mpz.rs:28:5
[INFO] [stdout]     |
[INFO] [stdout]  28 |     _mp_alloc: c_int,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `mpz_struct` does not permit being left uninitialized
[INFO] [stdout]    --> src/mpz.rs:186:27
[INFO] [stdout]     |
[INFO] [stdout] 186 |             let mut mpz = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this code causes undefined behavior when executed
[INFO] [stdout]     |                           help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]    --> src/mpz.rs:28:5
[INFO] [stdout]     |
[INFO] [stdout]  28 |     _mp_alloc: c_int,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `mpz_struct` does not permit being left uninitialized
[INFO] [stdout]    --> src/mpz.rs:241:27
[INFO] [stdout]     |
[INFO] [stdout] 241 |             let mut mpz = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this code causes undefined behavior when executed
[INFO] [stdout]     |                           help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]    --> src/mpz.rs:28:5
[INFO] [stdout]     |
[INFO] [stdout]  28 |     _mp_alloc: c_int,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `mpz_struct` does not permit being left uninitialized
[INFO] [stdout]    --> src/mpz.rs:490:27
[INFO] [stdout]     |
[INFO] [stdout] 490 |             let mut mpz = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this code causes undefined behavior when executed
[INFO] [stdout]     |                           help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]    --> src/mpz.rs:28:5
[INFO] [stdout]     |
[INFO] [stdout]  28 |     _mp_alloc: c_int,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `mpz_struct` does not permit being left uninitialized
[INFO] [stdout]    --> src/mpz.rs:527:27
[INFO] [stdout]     |
[INFO] [stdout] 527 |             let mut mpz = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this code causes undefined behavior when executed
[INFO] [stdout]     |                           help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]    --> src/mpz.rs:28:5
[INFO] [stdout]     |
[INFO] [stdout]  28 |     _mp_alloc: c_int,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `mpq_struct` does not permit being left uninitialized
[INFO] [stdout]   --> src/mpq.rs:75:27
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let mut mpq = uninitialized();
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           this code causes undefined behavior when executed
[INFO] [stdout]    |                           help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout] note: in this struct field
[INFO] [stdout]   --> src/mpq.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     _mp_num: mpz_struct,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]   --> src/mpz.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     _mp_alloc: c_int,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `mpf_struct` does not permit being left uninitialized
[INFO] [stdout]   --> src/mpf.rs:84:27
[INFO] [stdout]    |
[INFO] [stdout] 84 |             let mut mpf = uninitialized();
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           this code causes undefined behavior when executed
[INFO] [stdout]    |                           help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]   --> src/mpf.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     _mp_prec: c_int,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `mpf_struct` does not permit being left uninitialized
[INFO] [stdout]    --> src/mpf.rs:204:27
[INFO] [stdout]     |
[INFO] [stdout] 204 |             let mut mpf = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this code causes undefined behavior when executed
[INFO] [stdout]     |                           help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]    --> src/mpf.rs:19:5
[INFO] [stdout]     |
[INFO] [stdout]  19 |     _mp_prec: c_int,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `gmp_randstate_struct` does not permit being left uninitialized
[INFO] [stdout]   --> src/rand.rs:44:51
[INFO] [stdout]    |
[INFO] [stdout] 44 |             let mut state: gmp_randstate_struct = uninitialized();
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                   |
[INFO] [stdout]    |                                                   this code causes undefined behavior when executed
[INFO] [stdout]    |                                                   help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout] note: in this struct field
[INFO] [stdout]   --> src/rand.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout]  7 |     _mp_seed: mpz_struct,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]   --> src/mpz.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     _mp_alloc: c_int,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `gmp_randstate_struct` does not permit being left uninitialized
[INFO] [stdout]   --> src/rand.rs:52:51
[INFO] [stdout]    |
[INFO] [stdout] 52 |             let mut state: gmp_randstate_struct = uninitialized();
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                   |
[INFO] [stdout]    |                                                   this code causes undefined behavior when executed
[INFO] [stdout]    |                                                   help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout] note: in this struct field
[INFO] [stdout]   --> src/rand.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout]  7 |     _mp_seed: mpz_struct,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]   --> src/mpz.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     _mp_alloc: c_int,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `gmp_randstate_struct` does not permit being left uninitialized
[INFO] [stdout]   --> src/rand.rs:60:51
[INFO] [stdout]    |
[INFO] [stdout] 60 |             let mut state: gmp_randstate_struct = uninitialized();
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                   |
[INFO] [stdout]    |                                                   this code causes undefined behavior when executed
[INFO] [stdout]    |                                                   help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout] note: in this struct field
[INFO] [stdout]   --> src/rand.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout]  7 |     _mp_seed: mpz_struct,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]   --> src/mpz.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     _mp_alloc: c_int,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `gmp_randstate_struct` does not permit being left uninitialized
[INFO] [stdout]   --> src/rand.rs:68:51
[INFO] [stdout]    |
[INFO] [stdout] 68 |             let mut state: gmp_randstate_struct = uninitialized();
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                   |
[INFO] [stdout]    |                                                   this code causes undefined behavior when executed
[INFO] [stdout]    |                                                   help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout] note: in this struct field
[INFO] [stdout]   --> src/rand.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout]  7 |     _mp_seed: mpz_struct,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]   --> src/mpz.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     _mp_alloc: c_int,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `gmp_randstate_struct` does not permit being left uninitialized
[INFO] [stdout]    --> src/rand.rs:104:51
[INFO] [stdout]     |
[INFO] [stdout] 104 |             let mut state: gmp_randstate_struct = uninitialized();
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                                   |
[INFO] [stdout]     |                                                   this code causes undefined behavior when executed
[INFO] [stdout]     |                                                   help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout] note: in this struct field
[INFO] [stdout]    --> src/rand.rs:7:5
[INFO] [stdout]     |
[INFO] [stdout]   7 |     _mp_seed: mpz_struct,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]    --> src/mpz.rs:28:5
[INFO] [stdout]     |
[INFO] [stdout]  28 |     _mp_alloc: c_int,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/mpz.rs:510:14
[INFO] [stdout]     |
[INFO] [stdout] 510 |         self.description().fmt(f)
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/mpq.rs:200:14
[INFO] [stdout]     |
[INFO] [stdout] 200 |         self.description().fmt(f)
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `mpz_struct` does not permit being left uninitialized
[INFO] [stdout]    --> src/mpz.rs:178:27
[INFO] [stdout]     |
[INFO] [stdout] 178 |             let mut mpz = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this code causes undefined behavior when executed
[INFO] [stdout]     |                           help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]    --> src/mpz.rs:28:5
[INFO] [stdout]     |
[INFO] [stdout]  28 |     _mp_alloc: c_int,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `mpz_struct` does not permit being left uninitialized
[INFO] [stdout]    --> src/mpz.rs:186:27
[INFO] [stdout]     |
[INFO] [stdout] 186 |             let mut mpz = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this code causes undefined behavior when executed
[INFO] [stdout]     |                           help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]    --> src/mpz.rs:28:5
[INFO] [stdout]     |
[INFO] [stdout]  28 |     _mp_alloc: c_int,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `mpz_struct` does not permit being left uninitialized
[INFO] [stdout]    --> src/mpz.rs:241:27
[INFO] [stdout]     |
[INFO] [stdout] 241 |             let mut mpz = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this code causes undefined behavior when executed
[INFO] [stdout]     |                           help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]    --> src/mpz.rs:28:5
[INFO] [stdout]     |
[INFO] [stdout]  28 |     _mp_alloc: c_int,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `mpz_struct` does not permit being left uninitialized
[INFO] [stdout]    --> src/mpz.rs:490:27
[INFO] [stdout]     |
[INFO] [stdout] 490 |             let mut mpz = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this code causes undefined behavior when executed
[INFO] [stdout]     |                           help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]    --> src/mpz.rs:28:5
[INFO] [stdout]     |
[INFO] [stdout]  28 |     _mp_alloc: c_int,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `mpz_struct` does not permit being left uninitialized
[INFO] [stdout]    --> src/mpz.rs:527:27
[INFO] [stdout]     |
[INFO] [stdout] 527 |             let mut mpz = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this code causes undefined behavior when executed
[INFO] [stdout]     |                           help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]    --> src/mpz.rs:28:5
[INFO] [stdout]     |
[INFO] [stdout]  28 |     _mp_alloc: c_int,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `mpq_struct` does not permit being left uninitialized
[INFO] [stdout]   --> src/mpq.rs:75:27
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let mut mpq = uninitialized();
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           this code causes undefined behavior when executed
[INFO] [stdout]    |                           help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout] note: in this struct field
[INFO] [stdout]   --> src/mpq.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     _mp_num: mpz_struct,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]   --> src/mpz.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     _mp_alloc: c_int,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `mpf_struct` does not permit being left uninitialized
[INFO] [stdout]   --> src/mpf.rs:84:27
[INFO] [stdout]    |
[INFO] [stdout] 84 |             let mut mpf = uninitialized();
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           this code causes undefined behavior when executed
[INFO] [stdout]    |                           help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]   --> src/mpf.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     _mp_prec: c_int,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `mpf_struct` does not permit being left uninitialized
[INFO] [stdout]    --> src/mpf.rs:204:27
[INFO] [stdout]     |
[INFO] [stdout] 204 |             let mut mpf = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this code causes undefined behavior when executed
[INFO] [stdout]     |                           help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]    --> src/mpf.rs:19:5
[INFO] [stdout]     |
[INFO] [stdout]  19 |     _mp_prec: c_int,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `gmp_randstate_struct` does not permit being left uninitialized
[INFO] [stdout]   --> src/rand.rs:44:51
[INFO] [stdout]    |
[INFO] [stdout] 44 |             let mut state: gmp_randstate_struct = uninitialized();
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                   |
[INFO] [stdout]    |                                                   this code causes undefined behavior when executed
[INFO] [stdout]    |                                                   help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout] note: in this struct field
[INFO] [stdout]   --> src/rand.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout]  7 |     _mp_seed: mpz_struct,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]   --> src/mpz.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     _mp_alloc: c_int,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `gmp_randstate_struct` does not permit being left uninitialized
[INFO] [stdout]   --> src/rand.rs:52:51
[INFO] [stdout]    |
[INFO] [stdout] 52 |             let mut state: gmp_randstate_struct = uninitialized();
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                   |
[INFO] [stdout]    |                                                   this code causes undefined behavior when executed
[INFO] [stdout]    |                                                   help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout] note: in this struct field
[INFO] [stdout]   --> src/rand.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout]  7 |     _mp_seed: mpz_struct,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]   --> src/mpz.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     _mp_alloc: c_int,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `gmp_randstate_struct` does not permit being left uninitialized
[INFO] [stdout]   --> src/rand.rs:60:51
[INFO] [stdout]    |
[INFO] [stdout] 60 |             let mut state: gmp_randstate_struct = uninitialized();
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                   |
[INFO] [stdout]    |                                                   this code causes undefined behavior when executed
[INFO] [stdout]    |                                                   help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout] note: in this struct field
[INFO] [stdout]   --> src/rand.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout]  7 |     _mp_seed: mpz_struct,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]   --> src/mpz.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     _mp_alloc: c_int,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `gmp_randstate_struct` does not permit being left uninitialized
[INFO] [stdout]   --> src/rand.rs:68:51
[INFO] [stdout]    |
[INFO] [stdout] 68 |             let mut state: gmp_randstate_struct = uninitialized();
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                   |
[INFO] [stdout]    |                                                   this code causes undefined behavior when executed
[INFO] [stdout]    |                                                   help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout] note: in this struct field
[INFO] [stdout]   --> src/rand.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout]  7 |     _mp_seed: mpz_struct,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]   --> src/mpz.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     _mp_alloc: c_int,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `gmp_randstate_struct` does not permit being left uninitialized
[INFO] [stdout]    --> src/rand.rs:104:51
[INFO] [stdout]     |
[INFO] [stdout] 104 |             let mut state: gmp_randstate_struct = uninitialized();
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                                   |
[INFO] [stdout]     |                                                   this code causes undefined behavior when executed
[INFO] [stdout]     |                                                   help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout] note: in this struct field
[INFO] [stdout]    --> src/rand.rs:7:5
[INFO] [stdout]     |
[INFO] [stdout]   7 |     _mp_seed: mpz_struct,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]    --> src/mpz.rs:28:5
[INFO] [stdout]     |
[INFO] [stdout]  28 |     _mp_alloc: c_int,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]    --> src/test.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |         x / y;
[INFO] [stdout]     |         ^^^^^ the arithmetic operation produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 104 |         let _ = x / y;
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]    --> src/test.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 |         x % y;
[INFO] [stdout]     |         ^^^^^ the arithmetic operation produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 112 |         let _ = x % y;
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused comparison that must be used
[INFO] [stdout]    --> src/test.rs:319:9
[INFO] [stdout]     |
[INFO] [stdout] 319 |         Mpz::from_str_radix("1010010011", 2).unwrap().popcount() == 5;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the comparison produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 319 |         let _ = Mpz::from_str_radix("1010010011", 2).unwrap().popcount() == 5;
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]    --> src/test.rs:626:9
[INFO] [stdout]     |
[INFO] [stdout] 626 |         x / y;
[INFO] [stdout]     |         ^^^^^ the arithmetic operation produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 626 |         let _ = x / y;
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]    --> src/test.rs:715:9
[INFO] [stdout]     |
[INFO] [stdout] 715 |         &x / &x;
[INFO] [stdout]     |         ^^^^^^^ the arithmetic operation produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 715 |         let _ = &x / &x;
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.43s
[INFO] running `Command { std: "docker" "inspect" "07a44ade9b58ef416dc7c256a6c83697123cef763a6502c299c28d6d369d421b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07a44ade9b58ef416dc7c256a6c83697123cef763a6502c299c28d6d369d421b", kill_on_drop: false }`
[INFO] [stdout] 07a44ade9b58ef416dc7c256a6c83697123cef763a6502c299c28d6d369d421b