[INFO] cloning repository https://github.com/qezz/rust-ffi-demo [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qezz/rust-ffi-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqezz%2Frust-ffi-demo", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqezz%2Frust-ffi-demo'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 20254e58d38ec17be2261bc2a721bfede617e454 [INFO] testing qezz/rust-ffi-demo against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqezz%2Frust-ffi-demo" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/qezz/rust-ffi-demo on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/qezz/rust-ffi-demo [INFO] finished tweaking git repo https://github.com/qezz/rust-ffi-demo [INFO] tweaked toml for git repo https://github.com/qezz/rust-ffi-demo written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/qezz/rust-ffi-demo already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0946b856e1a2759453ba92799b0007107eb35fb2aafbfaf6e963881cd978976e [INFO] running `Command { std: "docker" "start" "-a" "0946b856e1a2759453ba92799b0007107eb35fb2aafbfaf6e963881cd978976e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0946b856e1a2759453ba92799b0007107eb35fb2aafbfaf6e963881cd978976e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0946b856e1a2759453ba92799b0007107eb35fb2aafbfaf6e963881cd978976e", kill_on_drop: false }` [INFO] [stdout] 0946b856e1a2759453ba92799b0007107eb35fb2aafbfaf6e963881cd978976e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b71cea6cb6246b10b417622d1bf70147857edbbce4cd2b79fb5b9267f11b9920 [INFO] running `Command { std: "docker" "start" "-a" "b71cea6cb6246b10b417622d1bf70147857edbbce4cd2b79fb5b9267f11b9920", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling cc v1.0.28 [INFO] [stderr] Compiling autocfg v0.1.1 [INFO] [stderr] Compiling rustc-demangle v0.1.11 [INFO] [stderr] Compiling bindgen v0.45.0 [INFO] [stderr] Compiling serde v1.0.82 [INFO] [stderr] Compiling ryu v0.2.7 [INFO] [stderr] Compiling peeking_take_while v0.1.2 [INFO] [stderr] Compiling clang-sys v0.26.3 [INFO] [stderr] Compiling syn v0.15.23 [INFO] [stderr] Compiling nom v4.1.1 [INFO] [stderr] Compiling backtrace v0.3.13 [INFO] [stderr] Compiling cexpr v0.3.3 [INFO] [stderr] Compiling backtrace-sys v0.1.28 [INFO] [stderr] Compiling libloading v0.5.0 [INFO] [stderr] Compiling synstructure v0.10.1 [INFO] [stderr] Compiling failure_derive v0.1.3 [INFO] [stderr] Compiling serde_derive v1.0.82 [INFO] [stderr] Compiling serde_json v1.0.33 [INFO] [stderr] Compiling failure v0.1.3 [INFO] [stderr] Compiling which v2.0.1 [INFO] [stderr] Compiling rust_ffi v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: constant is never used: `true_` [INFO] [stdout] --> /opt/rustwide/target/debug/build/rust_ffi-838bdddfe7929f03/out/c_mx_bindings.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | pub const true_ : u32 = 1 ; pub const false_ : u32 = 0 ; pub const __bool_true_false_are_defined : u32 = 1 ; extern "C" { pub fn transpos... [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `false_` [INFO] [stdout] --> /opt/rustwide/target/debug/build/rust_ffi-838bdddfe7929f03/out/c_mx_bindings.rs:3:29 [INFO] [stdout] | [INFO] [stdout] 3 | pub const true_ : u32 = 1 ; pub const false_ : u32 = 0 ; pub const __bool_true_false_are_defined : u32 = 1 ; extern "C" { pub fn transpos... [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `isEqual` [INFO] [stdout] --> /opt/rustwide/target/debug/build/rust_ffi-838bdddfe7929f03/out/c_mx_bindings.rs:3:365 [INFO] [stdout] | [INFO] [stdout] 3 | ... } extern "C" { pub fn isEqual ( arg1 : * mut f64 , arg2 : * mut f64 , arg3 : :: std :: os :: raw :: c_int ) -> bool ; } extern "C" { ... [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::env` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::env; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `SubCommand` [INFO] [stdout] --> src/main.rs:6:22 [INFO] [stdout] | [INFO] [stdout] 6 | use clap::{Arg, App, SubCommand}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Error`, `Value`, `json` [INFO] [stdout] --> src/main.rs:7:18 [INFO] [stdout] | [INFO] [stdout] 7 | use serde_json::{Value, Error, json}; [INFO] [stdout] | ^^^^^ ^^^^^ ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `serde` [INFO] [stdout] --> src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use serde; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `transpose` [INFO] [stdout] --> src/main.rs:12:16 [INFO] [stdout] | [INFO] [stdout] 12 | use rust_ffi::{transpose, multiply}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/main.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | fn new(s: &[f64]) -> LinearMatrix { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: linking with `cc` failed: exit status: 1 [INFO] [stdout] | [INFO] [stdout] = note: "cc" "-m64" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-Wl,--as-needed" "-L" "/opt/rustwide/rustup-home/toolchains/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/rust_ffi-5f270e14f8655828.rust_ffi.8sp7dei1-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-5f270e14f8655828.rust_ffi.8sp7dei1-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-5f270e14f8655828.rust_ffi.8sp7dei1-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-5f270e14f8655828.rust_ffi.8sp7dei1-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-5f270e14f8655828.rust_ffi.8sp7dei1-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-5f270e14f8655828.rust_ffi.8sp7dei1-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-5f270e14f8655828.rust_ffi.8sp7dei1-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-5f270e14f8655828.rust_ffi.8sp7dei1-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-5f270e14f8655828.rust_ffi.8sp7dei1-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-5f270e14f8655828.rust_ffi.8sp7dei1-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-5f270e14f8655828.rust_ffi.8sp7dei1-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-5f270e14f8655828.rust_ffi.8sp7dei1-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-5f270e14f8655828.rust_ffi.8sp7dei1-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-5f270e14f8655828.rust_ffi.8sp7dei1-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-5f270e14f8655828.rust_ffi.8sp7dei1-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-5f270e14f8655828.rust_ffi.8sp7dei1-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/rust_ffi-5f270e14f8655828" "/opt/rustwide/target/debug/deps/rust_ffi-5f270e14f8655828.okms4if42io8pp4.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "./c" "-L" "/opt/rustwide/rustup-home/toolchains/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/librust_ffi-cc80043c93af2b71.rlib" "/opt/rustwide/target/debug/deps/libserde_json-e8ee82cd53f99207.rlib" "/opt/rustwide/target/debug/deps/libryu-5ac4bc40e150250a.rlib" "/opt/rustwide/target/debug/deps/libitoa-bf00738b2b8bc4b5.rlib" "/opt/rustwide/target/debug/deps/libserde-7a3b21fd04462251.rlib" "/opt/rustwide/target/debug/deps/libclap-64439616cf7e4302.rlib" "/opt/rustwide/target/debug/deps/libvec_map-1b378012469a33f8.rlib" "/opt/rustwide/target/debug/deps/libtextwrap-5eaed92efbefe3dd.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-d569fa77ffe46f20.rlib" "/opt/rustwide/target/debug/deps/libstrsim-13e4fe9f4423e3e3.rlib" "/opt/rustwide/target/debug/deps/libbitflags-44e95351d5c34c9b.rlib" "/opt/rustwide/target/debug/deps/libatty-2c1b31b24a97eb0c.rlib" "/opt/rustwide/target/debug/deps/liblibc-43fef288a6638bc2.rlib" "/opt/rustwide/target/debug/deps/libansi_term-b7c7e94976e9eae7.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-21256c14e4504640.rlib" "/opt/rustwide/rustup-home/toolchains/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-986e7fea4474d4d2.rlib" "/opt/rustwide/rustup-home/toolchains/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-91d85f45babdb06e.rlib" "/opt/rustwide/rustup-home/toolchains/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-756509c31813f9a6.rlib" "/opt/rustwide/rustup-home/toolchains/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-5c2ef587e740c0cc.rlib" "/opt/rustwide/rustup-home/toolchains/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-ad8f9371d31db1b3.rlib" "/opt/rustwide/rustup-home/toolchains/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-402820fb3b4d3dd8.rlib" "/opt/rustwide/rustup-home/toolchains/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-5e8e903f07dc8747.rlib" "/opt/rustwide/rustup-home/toolchains/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-7ab9ae5080c07187.rlib" "/opt/rustwide/rustup-home/toolchains/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-c8e8d47c6bf14de2.rlib" "/opt/rustwide/rustup-home/toolchains/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-5a02dbb58abd015a.rlib" "/opt/rustwide/rustup-home/toolchains/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-cedc8fec61444895.rlib" "/opt/rustwide/rustup-home/toolchains/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-a1c96351c52bc56a.rlib" "/opt/rustwide/rustup-home/toolchains/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-e41c6d24baeb2249.rlib" "/opt/rustwide/rustup-home/toolchains/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-62493b241881590c.rlib" "/opt/rustwide/rustup-home/toolchains/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-a1fd7734706d5518.rlib" "/opt/rustwide/rustup-home/toolchains/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-c8ded1707ad10767.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-1eec8756baa5bc24.rlib" "-Wl,-Bdynamic" "-lmx" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" [INFO] [stdout] = note: /usr/bin/ld: cannot find -lmx [INFO] [stdout] collect2: error: ld returned 1 exit status [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_ffi` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "b71cea6cb6246b10b417622d1bf70147857edbbce4cd2b79fb5b9267f11b9920", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b71cea6cb6246b10b417622d1bf70147857edbbce4cd2b79fb5b9267f11b9920", kill_on_drop: false }` [INFO] [stdout] b71cea6cb6246b10b417622d1bf70147857edbbce4cd2b79fb5b9267f11b9920