[INFO] cloning repository qezz/rust-ffi-demo
[INFO] running `"git" "clone" "--bare" "git://github.com/qezz/rust-ffi-demo.git" "work/cache/sources/gh/qezz/rust-ffi-demo"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/qezz/rust-ffi-demo'...
[INFO] running `"git" "clone" "work/cache/sources/gh/qezz/rust-ffi-demo" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/qezz/rust-ffi-demo"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/qezz/rust-ffi-demo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/qezz/rust-ffi-demo" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/qezz/rust-ffi-demo"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/qezz/rust-ffi-demo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 20254e58d38ec17be2261bc2a721bfede617e454
[INFO] sha for GitHub repo qezz/rust-ffi-demo: 20254e58d38ec17be2261bc2a721bfede617e454
[INFO] validating manifest of qezz/rust-ffi-demo on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of qezz/rust-ffi-demo on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing qezz/rust-ffi-demo
[INFO] finished frobbing qezz/rust-ffi-demo
[INFO] frobbed toml for qezz/rust-ffi-demo written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/qezz/rust-ffi-demo/Cargo.toml
[INFO] started frobbing qezz/rust-ffi-demo
[INFO] finished frobbing qezz/rust-ffi-demo
[INFO] frobbed toml for qezz/rust-ffi-demo written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/qezz/rust-ffi-demo/Cargo.toml
[INFO] crate qezz/rust-ffi-demo already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clang-sys v0.26.3
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing qezz/rust-ffi-demo against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-4/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/qezz/rust-ffi-demo:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] a62fe7707cfbc9ab7eef4d227fc81629ef2078c7c1a7d7ad077cb654a3046c20
[INFO] running `"docker" "start" "-a" "a62fe7707cfbc9ab7eef4d227fc81629ef2078c7c1a7d7ad077cb654a3046c20"`
[INFO] [stderr]    Compiling bindgen v0.45.0
[INFO] [stderr]    Compiling clang-sys v0.26.3
[INFO] [stderr]    Compiling nom v4.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling cexpr v0.3.3
[INFO] [stderr]    Compiling rust_ffi v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: constant item is never used: `true_`
[INFO] [stderr]  --> /opt/crater/target/debug/build/rust_ffi-b761f7dfd10850e8/out/c_mx_bindings.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub const true_ : u32 = 1 ; pub const false_ : u32 = 0 ; pub const __bool_true_false_are_defined : u32 = 1 ; extern "C" { pub fn transpose ( arg1 : * mut f64 , arg2 : * mut f64 , arg3 : :: std :: os :: raw :: c_int ) ; } extern "C" { pub fn multiply ( arg1 : * mut f64 , arg2 : * mut f64 , arg3 : * mut f64 , arg4 : :: std :: os :: raw :: c_int ) ; } extern "C" { pub fn isEqual ( arg1 : * mut f64 , arg2 : * mut f64 , arg3 : :: std :: os :: raw :: c_int ) -> bool ; } extern "C" { pub fn multiply_l ( arg1 : * mut f64 , arg2 : * mut f64 , arg3 : * mut f64 , arg4 : :: std :: os :: raw :: c_int ) ; } extern "C" { pub fn multiply_pf ( arg1 : * mut f64 , arg2 : * mut f64 , arg3 : * mut f64 , arg4 : :: std :: os :: raw :: c_int ) ; }
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `false_`
[INFO] [stderr]  --> /opt/crater/target/debug/build/rust_ffi-b761f7dfd10850e8/out/c_mx_bindings.rs:3:29
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub const true_ : u32 = 1 ; pub const false_ : u32 = 0 ; pub const __bool_true_false_are_defined : u32 = 1 ; extern "C" { pub fn transpose ( arg1 : * mut f64 , arg2 : * mut f64 , arg3 : :: std :: os :: raw :: c_int ) ; } extern "C" { pub fn multiply ( arg1 : * mut f64 , arg2 : * mut f64 , arg3 : * mut f64 , arg4 : :: std :: os :: raw :: c_int ) ; } extern "C" { pub fn isEqual ( arg1 : * mut f64 , arg2 : * mut f64 , arg3 : :: std :: os :: raw :: c_int ) -> bool ; } extern "C" { pub fn multiply_l ( arg1 : * mut f64 , arg2 : * mut f64 , arg3 : * mut f64 , arg4 : :: std :: os :: raw :: c_int ) ; } extern "C" { pub fn multiply_pf ( arg1 : * mut f64 , arg2 : * mut f64 , arg3 : * mut f64 , arg4 : :: std :: os :: raw :: c_int ) ; }
[INFO] [stderr]   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `isEqual`
[INFO] [stderr]  --> /opt/crater/target/debug/build/rust_ffi-b761f7dfd10850e8/out/c_mx_bindings.rs:3:365
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub const true_ : u32 = 1 ; pub const false_ : u32 = 0 ; pub const __bool_true_false_are_defined : u32 = 1 ; extern "C" { pub fn transpose ( arg1 : * mut f64 , arg2 : * mut f64 , arg3 : :: std :: os :: raw :: c_int ) ; } extern "C" { pub fn multiply ( arg1 : * mut f64 , arg2 : * mut f64 , arg3 : * mut f64 , arg4 : :: std :: os :: raw :: c_int ) ; } extern "C" { pub fn isEqual ( arg1 : * mut f64 , arg2 : * mut f64 , arg3 : :: std :: os :: raw :: c_int ) -> bool ; } extern "C" { pub fn multiply_l ( arg1 : * mut f64 , arg2 : * mut f64 , arg3 : * mut f64 , arg4 : :: std :: os :: raw :: c_int ) ; } extern "C" { pub fn multiply_pf ( arg1 : * mut f64 , arg2 : * mut f64 , arg3 : * mut f64 , arg4 : :: std :: os :: raw :: c_int ) ; }
[INFO] [stderr]   |                                                                                                                                                                                                                                                                                                                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SubCommand`
[INFO] [stderr]  --> src/main.rs:6:22
[INFO] [stderr]   |
[INFO] [stderr] 6 | use clap::{Arg, App, SubCommand};
[INFO] [stderr]   |                      ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Error`, `Value`, `json`
[INFO] [stderr]  --> src/main.rs:7:18
[INFO] [stderr]   |
[INFO] [stderr] 7 | use serde_json::{Value, Error, json};
[INFO] [stderr]   |                  ^^^^^  ^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use serde;
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `transpose`
[INFO] [stderr]   --> src/main.rs:12:16
[INFO] [stderr]    |
[INFO] [stderr] 12 | use rust_ffi::{transpose, multiply};
[INFO] [stderr]    |                ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/main.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn new(s: &[f64]) -> LinearMatrix {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/rust_ffi-dee663d6def6b29f.rust_ffi.dcxjxa5x-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/rust_ffi-dee663d6def6b29f.rust_ffi.dcxjxa5x-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/rust_ffi-dee663d6def6b29f.rust_ffi.dcxjxa5x-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/rust_ffi-dee663d6def6b29f.rust_ffi.dcxjxa5x-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/rust_ffi-dee663d6def6b29f.rust_ffi.dcxjxa5x-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/rust_ffi-dee663d6def6b29f.rust_ffi.dcxjxa5x-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/rust_ffi-dee663d6def6b29f.rust_ffi.dcxjxa5x-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/rust_ffi-dee663d6def6b29f.rust_ffi.dcxjxa5x-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/rust_ffi-dee663d6def6b29f.rust_ffi.dcxjxa5x-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/rust_ffi-dee663d6def6b29f.rust_ffi.dcxjxa5x-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/rust_ffi-dee663d6def6b29f.rust_ffi.dcxjxa5x-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/rust_ffi-dee663d6def6b29f.rust_ffi.dcxjxa5x-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/rust_ffi-dee663d6def6b29f.rust_ffi.dcxjxa5x-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/rust_ffi-dee663d6def6b29f.rust_ffi.dcxjxa5x-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/rust_ffi-dee663d6def6b29f.rust_ffi.dcxjxa5x-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/rust_ffi-dee663d6def6b29f.rust_ffi.dcxjxa5x-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/rust_ffi-dee663d6def6b29f" "/opt/crater/target/debug/deps/rust_ffi-dee663d6def6b29f.2w3bgw6ei2yqp04w.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "./c" "-L" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/librust_ffi-89f1d8df74e39658.rlib" "/opt/crater/target/debug/deps/libserde_json-7f11b833b6469d8e.rlib" "/opt/crater/target/debug/deps/libryu-af7e513db157678c.rlib" "/opt/crater/target/debug/deps/libitoa-9f10a2d6a888458b.rlib" "/opt/crater/target/debug/deps/libserde-646394e84e876566.rlib" "/opt/crater/target/debug/deps/libclap-f3a6da3972db06bc.rlib" "/opt/crater/target/debug/deps/libvec_map-cc0ce3adfcb1b056.rlib" "/opt/crater/target/debug/deps/libtextwrap-0102ea13946ebb73.rlib" "/opt/crater/target/debug/deps/libunicode_width-454a0b46b949aab8.rlib" "/opt/crater/target/debug/deps/libstrsim-642305543a158f9a.rlib" "/opt/crater/target/debug/deps/libbitflags-7486021306c0f32a.rlib" "/opt/crater/target/debug/deps/libatty-f4155e0083ed0989.rlib" "/opt/crater/target/debug/deps/liblibc-1e024785a4134c0a.rlib" "/opt/crater/target/debug/deps/libansi_term-0acbace24a3c1a47.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-5eb7072357e3f704.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-be57a0a20ef83edc.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-53ea5c4d1e8787c5.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-90a03fea645d1ca0.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-d0be8ec5eb12a622.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-c9bd1ed65ad5f9b5.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-232a620458cbc142.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-378c2daa95643520.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-b1ad0e3b0cafff9a.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-bd92551ef79ec0f7.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-6f92150ede6dcf89.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-5d5836de4a922af7.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-0bd990bd23dec0da.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-f5a50a9afbc6d167.rlib" "-Wl,-Bdynamic" "-lmx" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lmx
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rust_ffi`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a62fe7707cfbc9ab7eef4d227fc81629ef2078c7c1a7d7ad077cb654a3046c20"`
[INFO] running `"docker" "rm" "-f" "a62fe7707cfbc9ab7eef4d227fc81629ef2078c7c1a7d7ad077cb654a3046c20"`
[INFO] [stdout] a62fe7707cfbc9ab7eef4d227fc81629ef2078c7c1a7d7ad077cb654a3046c20