[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 beta-2021-01-01 for beta-1.50-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqezz%2Frust-ffi-demo" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/qezz/rust-ffi-demo on toolchain beta-2021-01-01 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", 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-6/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" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded itertools v0.7.11 [INFO] [stderr] Downloaded num_cpus v1.9.0 [INFO] [stderr] Downloaded which v2.0.1 [INFO] [stderr] Downloaded nom v4.1.1 [INFO] [stderr] Downloaded criterion-stats v0.2.5 [INFO] [stderr] Downloaded autocfg v0.1.1 [INFO] [stderr] Downloaded csv-core v0.1.5 [INFO] [stderr] Downloaded criterion-plot v0.2.5 [INFO] [stderr] Downloaded csv v1.0.5 [INFO] [stderr] Downloaded criterion v0.2.5 [INFO] [stderr] Downloaded clang-sys v0.26.3 [INFO] [stderr] Downloaded time v0.1.41 [INFO] [stderr] Downloaded simplelog v0.5.3 [INFO] [stderr] Downloaded term v0.5.1 [INFO] [stderr] Downloaded syn v0.15.23 [INFO] [stderr] Downloaded cc v1.0.28 [INFO] [stderr] Downloaded backtrace v0.3.13 [INFO] [stderr] Downloaded itertools-num v0.1.3 [INFO] [stderr] Downloaded serde_derive v1.0.82 [INFO] [stderr] Downloaded cexpr v0.3.3 [INFO] [stderr] Downloaded pest_derive v1.0.8 [INFO] [stderr] Downloaded handlebars v0.32.4 [INFO] [stderr] Downloaded pest v1.0.6 [INFO] [stderr] Downloaded thread-scoped v1.0.2 [INFO] [stderr] Downloaded rustc-demangle v0.1.11 [INFO] [stderr] Downloaded serde v1.0.82 [INFO] [stderr] Downloaded bindgen v0.45.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bfb3fba863a5426d7ea7a272c7c56c19c6b57c3fac1e90b37cdba677c671a1d7 [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" "bfb3fba863a5426d7ea7a272c7c56c19c6b57c3fac1e90b37cdba677c671a1d7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bfb3fba863a5426d7ea7a272c7c56c19c6b57c3fac1e90b37cdba677c671a1d7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bfb3fba863a5426d7ea7a272c7c56c19c6b57c3fac1e90b37cdba677c671a1d7", kill_on_drop: false }` [INFO] [stdout] bfb3fba863a5426d7ea7a272c7c56c19c6b57c3fac1e90b37cdba677c671a1d7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bd152db9ddd14c1a3a29053af38c59a08ecb54fdba28a6690530916f961a24bb [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" "bd152db9ddd14c1a3a29053af38c59a08ecb54fdba28a6690530916f961a24bb", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling rustc-demangle v0.1.11 [INFO] [stderr] Compiling bindgen v0.45.0 [INFO] [stderr] Compiling libloading v0.5.0 [INFO] [stderr] Compiling backtrace-sys v0.1.28 [INFO] [stderr] Compiling backtrace v0.3.13 [INFO] [stderr] Compiling failure v0.1.3 [INFO] [stderr] Compiling which v2.0.1 [INFO] [stderr] Compiling clang-sys v0.26.3 [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-aaae5708b2c8004e/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-aaae5708b2c8004e/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-aaae5708b2c8004e/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 code: 1 [INFO] [stdout] | [INFO] [stdout] = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/rust_ffi-380f756dbab6c6ca.rust_ffi.7mswg1bl-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-380f756dbab6c6ca.rust_ffi.7mswg1bl-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-380f756dbab6c6ca.rust_ffi.7mswg1bl-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-380f756dbab6c6ca.rust_ffi.7mswg1bl-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-380f756dbab6c6ca.rust_ffi.7mswg1bl-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-380f756dbab6c6ca.rust_ffi.7mswg1bl-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-380f756dbab6c6ca.rust_ffi.7mswg1bl-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-380f756dbab6c6ca.rust_ffi.7mswg1bl-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-380f756dbab6c6ca.rust_ffi.7mswg1bl-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-380f756dbab6c6ca.rust_ffi.7mswg1bl-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-380f756dbab6c6ca.rust_ffi.7mswg1bl-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-380f756dbab6c6ca.rust_ffi.7mswg1bl-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-380f756dbab6c6ca.rust_ffi.7mswg1bl-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-380f756dbab6c6ca.rust_ffi.7mswg1bl-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-380f756dbab6c6ca.rust_ffi.7mswg1bl-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-380f756dbab6c6ca.rust_ffi.7mswg1bl-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/rust_ffi-380f756dbab6c6ca" "/opt/rustwide/target/debug/deps/rust_ffi-380f756dbab6c6ca.586qavp3z11lvd1g.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/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/librust_ffi-36745883630680b8.rlib" "/opt/rustwide/target/debug/deps/libserde_json-816cbd0b6ae016c1.rlib" "/opt/rustwide/target/debug/deps/libryu-a2e05793006b80b0.rlib" "/opt/rustwide/target/debug/deps/libitoa-a9910cb6817ea53c.rlib" "/opt/rustwide/target/debug/deps/libserde-91d30733711c97b5.rlib" "/opt/rustwide/target/debug/deps/libclap-f4959c3050a12399.rlib" "/opt/rustwide/target/debug/deps/libvec_map-de5da0971b7274da.rlib" "/opt/rustwide/target/debug/deps/libtextwrap-dd28f77b810155f6.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-a75a3e806d19d84a.rlib" "/opt/rustwide/target/debug/deps/libstrsim-7accd5525a820975.rlib" "/opt/rustwide/target/debug/deps/libbitflags-7d7e30e06800d2fa.rlib" "/opt/rustwide/target/debug/deps/libatty-73458edaf9119de6.rlib" "/opt/rustwide/target/debug/deps/liblibc-99eb49759f94b4f4.rlib" "/opt/rustwide/target/debug/deps/libansi_term-4b9c56ff58f1d4f8.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-7444fd17919e9af0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-0ee2f67026959ab7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-df1bcd1e82256d04.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-ed9ecf1b54021131.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-0ede66bb24e94b96.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-7c2de7f50940865c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-b138d50085fd4683.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-6576870d8f2b9ae2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-042a30c5f67b2c91.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7b3f33d3dbe385dc.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-90b3063cd7b22527.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-17f9484f8dc4da1e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-df38345acd9d92e1.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-a5e10ca10bdd9e54.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9e5b4162eeef2cef.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-3a4e739a77468800.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-0f3a0c116d5e04d6.rlib" "-Wl,-Bdynamic" "-lmx" "-lutil" "-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" "bd152db9ddd14c1a3a29053af38c59a08ecb54fdba28a6690530916f961a24bb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bd152db9ddd14c1a3a29053af38c59a08ecb54fdba28a6690530916f961a24bb", kill_on_drop: false }` [INFO] [stdout] bd152db9ddd14c1a3a29053af38c59a08ecb54fdba28a6690530916f961a24bb