[INFO] fetching crate classgroup 0.1.0...
[INFO] checking classgroup-0.1.0 against try#169954edd744527414c631e9af1bbdc537b0cdf2 for pr-75192
[INFO] extracting crate classgroup 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate classgroup 0.1.0 on toolchain 169954edd744527414c631e9af1bbdc537b0cdf2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate classgroup 0.1.0
[INFO] finished tweaking crates.io crate classgroup 0.1.0
[INFO] tweaked toml for crates.io crate classgroup 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f04034be015876bfe2724f5d5dfa7ac1fa71bdac534772ef77fa17ae829a9a7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1f04034be015876bfe2724f5d5dfa7ac1fa71bdac534772ef77fa17ae829a9a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f04034be015876bfe2724f5d5dfa7ac1fa71bdac534772ef77fa17ae829a9a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f04034be015876bfe2724f5d5dfa7ac1fa71bdac534772ef77fa17ae829a9a7", kill_on_drop: false }`
[INFO] [stdout] 1f04034be015876bfe2724f5d5dfa7ac1fa71bdac534772ef77fa17ae829a9a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 70f56245aa2fc95f80092151ad8c81990cd1fbf054ef87ddfeeec323aa5309c6
[INFO] running `Command { std: "docker" "start" "-a" "70f56245aa2fc95f80092151ad8c81990cd1fbf054ef87ddfeeec323aa5309c6", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking classgroup v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/gmp/mpz.rs:487:40
[INFO] [stdout]     |
[INFO] [stdout] 487 |     fn cause(&self) -> Option<&'static Error> {
[INFO] [stdout]     |                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]  --> src/gmp/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/gmp/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![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/gmp/mpz.rs:132:27
[INFO] [stdout]     |
[INFO] [stdout] 132 |             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/gmp/mpz.rs:141:27
[INFO] [stdout]     |
[INFO] [stdout] 141 |             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/gmp/mpz.rs:189:27
[INFO] [stdout]     |
[INFO] [stdout] 189 |             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/gmp/mpz.rs:458:27
[INFO] [stdout]     |
[INFO] [stdout] 458 |             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/gmp/mpz.rs:495:27
[INFO] [stdout]     |
[INFO] [stdout] 495 |             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/gmp_classgroup/ffi.rs:240:28
[INFO] [stdout]     |
[INFO] [stdout] 240 |         let mut s: usize = mem::uninitialized();
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/gmp/mpz.rs:478:14
[INFO] [stdout]     |
[INFO] [stdout] 478 |         self.description().fmt(f)
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stdout] error: `__gmpz_gcdext` redeclared with a different signature
[INFO] [stdout]   --> src/gmp_classgroup/ffi.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn __gmpz_gcdext(gcd: *mut Mpz, s: *mut Mpz, t: *mut Mpz, a: *const Mpz, b: *const Mpz);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/gmp/mpz.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn __gmpz_gcdext(g: mpz_ptr, s: mpz_ptr, t: mpz_ptr, a: mpz_srcptr, b: mpz_srcptr);
[INFO] [stdout]    |     ----------------------------------------------------------------------------------- `__gmpz_gcdext` previously declared here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(clashing_extern_declarations)]` on by default
[INFO] [stdout]    = note: expected `unsafe extern "C" fn(*mut gmp::mpz::mpz_struct, *mut gmp::mpz::mpz_struct, *mut gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct)`
[INFO] [stdout]               found `unsafe extern "C" fn(*mut gmp::mpz::Mpz, *mut gmp::mpz::Mpz, *mut gmp::mpz::Mpz, *const gmp::mpz::Mpz, *const gmp::mpz::Mpz)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `__gmpz_gcd` redeclared with a different signature
[INFO] [stdout]   --> src/gmp_classgroup/ffi.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn __gmpz_gcd(rop: *mut Mpz, op1: *const Mpz, op2: *const Mpz);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/gmp/mpz.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn __gmpz_gcd(rop: mpz_ptr, op1: mpz_srcptr, op2: mpz_srcptr);
[INFO] [stdout]    |     -------------------------------------------------------------- `__gmpz_gcd` previously declared here
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected `unsafe extern "C" fn(*mut gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct)`
[INFO] [stdout]               found `unsafe extern "C" fn(*mut gmp::mpz::Mpz, *const gmp::mpz::Mpz, *const gmp::mpz::Mpz)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `__gmpz_fdiv_q` redeclared with a different signature
[INFO] [stdout]   --> src/gmp_classgroup/ffi.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn __gmpz_fdiv_q(q: *mut Mpz, n: *const Mpz, d: *const Mpz);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/gmp/ffi.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  |     pub fn __gmpz_fdiv_q(q: mpz_ptr, n: mpz_srcptr, d: mpz_srcptr);
[INFO] [stdout]    |     --------------------------------------------------------------- `__gmpz_fdiv_q` previously declared here
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected `unsafe extern "C" fn(*mut gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct)`
[INFO] [stdout]               found `unsafe extern "C" fn(*mut gmp::mpz::Mpz, *const gmp::mpz::Mpz, *const gmp::mpz::Mpz)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `__gmpz_tdiv_q` redeclared with a different signature
[INFO] [stdout]   --> src/gmp_classgroup/ffi.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn __gmpz_tdiv_q(q: *mut Mpz, n: *const Mpz, d: *const Mpz);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/gmp/mpz.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn __gmpz_tdiv_q(q: mpz_ptr, n: mpz_srcptr, d: mpz_srcptr);
[INFO] [stdout]    |     ----------------------------------------------------------- `__gmpz_tdiv_q` previously declared here
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected `unsafe extern "C" fn(*mut gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct)`
[INFO] [stdout]               found `unsafe extern "C" fn(*mut gmp::mpz::Mpz, *const gmp::mpz::Mpz, *const gmp::mpz::Mpz)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `__gmpz_mul` redeclared with a different signature
[INFO] [stdout]   --> src/gmp_classgroup/ffi.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn __gmpz_mul(p: *mut Mpz, a: *const Mpz, b: *const Mpz);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/gmp/mpz.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn __gmpz_mul(rop: mpz_ptr, op1: mpz_srcptr, op2: mpz_srcptr);
[INFO] [stdout]    |     -------------------------------------------------------------- `__gmpz_mul` previously declared here
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected `unsafe extern "C" fn(*mut gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct)`
[INFO] [stdout]               found `unsafe extern "C" fn(*mut gmp::mpz::Mpz, *const gmp::mpz::Mpz, *const gmp::mpz::Mpz)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `__gmpz_mul_2exp` redeclared with a different signature
[INFO] [stdout]   --> src/gmp_classgroup/ffi.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn __gmpz_mul_2exp(rop: *mut Mpz, op1: *const Mpz, op2: mp_bitcnt_t);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/gmp/mpz.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn __gmpz_mul_2exp(rop: mpz_ptr, op1: mpz_srcptr, op2: mp_bitcnt_t);
[INFO] [stdout]    |     -------------------------------------------------------------------- `__gmpz_mul_2exp` previously declared here
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected `unsafe extern "C" fn(*mut gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct, u64)`
[INFO] [stdout]               found `unsafe extern "C" fn(*mut gmp::mpz::Mpz, *const gmp::mpz::Mpz, u64)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `__gmpz_sub` redeclared with a different signature
[INFO] [stdout]   --> src/gmp_classgroup/ffi.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn __gmpz_sub(rop: *mut Mpz, op1: *const Mpz, op2: *const Mpz);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/gmp/mpz.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn __gmpz_sub(rop: mpz_ptr, op1: mpz_srcptr, op2: mpz_srcptr);
[INFO] [stdout]    |     -------------------------------------------------------------- `__gmpz_sub` previously declared here
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected `unsafe extern "C" fn(*mut gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct)`
[INFO] [stdout]               found `unsafe extern "C" fn(*mut gmp::mpz::Mpz, *const gmp::mpz::Mpz, *const gmp::mpz::Mpz)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `__gmpz_import` redeclared with a different signature
[INFO] [stdout]   --> src/gmp_classgroup/ffi.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | /     fn __gmpz_import(
[INFO] [stdout] 39 | |         rop: *mut Mpz,
[INFO] [stdout] 40 | |         count: size_t,
[INFO] [stdout] 41 | |         order: c_int,
[INFO] [stdout] ...  |
[INFO] [stdout] 45 | |         op: *const c_void,
[INFO] [stdout] 46 | |     );
[INFO] [stdout]    | |______^ this signature doesn't match the previous declaration
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/gmp/mpz.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | /     fn __gmpz_import(rop: mpz_ptr, count: size_t, order: c_int, size: size_t,
[INFO] [stdout] 90 | |                      endian: c_int, nails: size_t, op: *const c_void);
[INFO] [stdout]    | |______________________________________________________________________- `__gmpz_import` previously declared here
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected `unsafe extern "C" fn(*mut gmp::mpz::mpz_struct, usize, i32, usize, i32, usize, *const gmp::libc::c_void)`
[INFO] [stdout]               found `unsafe extern "C" fn(*mut gmp::mpz::Mpz, usize, i32, usize, i32, usize, *const gmp::libc::c_void)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `__gmpz_tdiv_r` redeclared with a different signature
[INFO] [stdout]   --> src/gmp_classgroup/ffi.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn __gmpz_tdiv_r(r: *mut Mpz, n: *const Mpz, d: *const Mpz);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/gmp/mpz.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn __gmpz_tdiv_r(r: mpz_ptr, n: mpz_srcptr, d: mpz_srcptr);
[INFO] [stdout]    |     ----------------------------------------------------------- `__gmpz_tdiv_r` previously declared here
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected `unsafe extern "C" fn(*mut gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct)`
[INFO] [stdout]               found `unsafe extern "C" fn(*mut gmp::mpz::Mpz, *const gmp::mpz::Mpz, *const gmp::mpz::Mpz)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `__gmpz_sizeinbase` redeclared with a different signature
[INFO] [stdout]   --> src/gmp_classgroup/ffi.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn __gmpz_sizeinbase(op: &Mpz, base: c_int) -> size_t;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/gmp/mpz.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn __gmpz_sizeinbase(op: mpz_srcptr, base: c_int) -> size_t;
[INFO] [stdout]    |     ------------------------------------------------------------ `__gmpz_sizeinbase` previously declared here
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected `unsafe extern "C" fn(*const gmp::mpz::mpz_struct, i32) -> usize`
[INFO] [stdout]               found `for<'r> unsafe extern "C" fn(&'r gmp::mpz::Mpz, i32) -> usize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `__gmpz_add` redeclared with a different signature
[INFO] [stdout]   --> src/gmp_classgroup/ffi.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn __gmpz_add(rop: *mut Mpz, op1: *const Mpz, op2: *const Mpz);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/gmp/mpz.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn __gmpz_add(rop: mpz_ptr, op1: mpz_srcptr, op2: mpz_srcptr);
[INFO] [stdout]    |     -------------------------------------------------------------- `__gmpz_add` previously declared here
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected `unsafe extern "C" fn(*mut gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct)`
[INFO] [stdout]               found `unsafe extern "C" fn(*mut gmp::mpz::Mpz, *const gmp::mpz::Mpz, *const gmp::mpz::Mpz)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `__gmpz_add_ui` redeclared with a different signature
[INFO] [stdout]   --> src/gmp_classgroup/ffi.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn __gmpz_add_ui(rop: *mut Mpz, op1: *const Mpz, op2: c_ulong);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/gmp/mpz.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn __gmpz_add_ui(rop: mpz_ptr, op1: mpz_srcptr, op2: c_ulong);
[INFO] [stdout]    |     -------------------------------------------------------------- `__gmpz_add_ui` previously declared here
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected `unsafe extern "C" fn(*mut gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct, u64)`
[INFO] [stdout]               found `unsafe extern "C" fn(*mut gmp::mpz::Mpz, *const gmp::mpz::Mpz, u64)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `__gmpz_export` redeclared with a different signature
[INFO] [stdout]   --> src/gmp_classgroup/ffi.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | /     fn __gmpz_export(
[INFO] [stdout] 58 | |         rop: *mut c_void,
[INFO] [stdout] 59 | |         countp: *mut size_t,
[INFO] [stdout] 60 | |         order: c_int,
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |         op: &Mpz,
[INFO] [stdout] 65 | |     ) -> *mut c_void;
[INFO] [stdout]    | |_____________________^ this signature doesn't match the previous declaration
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/gmp/mpz.rs:91:5
[INFO] [stdout]    |
[INFO] [stdout] 91 | /     fn __gmpz_export(rop: *mut c_void, countp: *mut size_t, order: c_int, size: size_t, 
[INFO] [stdout] 92 | |                      endian: c_int, nails: size_t, op: mpz_srcptr);
[INFO] [stdout]    | |___________________________________________________________________- `__gmpz_export` previously declared here
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected `unsafe extern "C" fn(*mut gmp::libc::c_void, *mut usize, i32, usize, i32, usize, *const gmp::mpz::mpz_struct)`
[INFO] [stdout]               found `for<'r> unsafe extern "C" fn(*mut gmp::libc::c_void, *mut usize, i32, usize, i32, usize, &'r gmp::mpz::Mpz) -> *mut gmp::libc::c_void`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `__gmpz_powm` redeclared with a different signature
[INFO] [stdout]   --> src/gmp_classgroup/ffi.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn __gmpz_powm(rop: *mut Mpz, base: *const Mpz, exp: *const Mpz, modulus: *const Mpz);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/gmp/mpz.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn __gmpz_powm(rop: mpz_ptr, base: mpz_srcptr, exp: mpz_srcptr, modulo: mpz_srcptr);
[INFO] [stdout]    |     ------------------------------------------------------------------------------------ `__gmpz_powm` previously declared here
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected `unsafe extern "C" fn(*mut gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct, *const gmp::mpz::mpz_struct)`
[INFO] [stdout]               found `unsafe extern "C" fn(*mut gmp::mpz::Mpz, *const gmp::mpz::Mpz, *const gmp::mpz::Mpz, *const gmp::mpz::Mpz)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 14 previous errors; 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `classgroup`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "70f56245aa2fc95f80092151ad8c81990cd1fbf054ef87ddfeeec323aa5309c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70f56245aa2fc95f80092151ad8c81990cd1fbf054ef87ddfeeec323aa5309c6", kill_on_drop: false }`
[INFO] [stdout] 70f56245aa2fc95f80092151ad8c81990cd1fbf054ef87ddfeeec323aa5309c6