[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 1.49.0 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-5/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/qezz/rust-ffi-demo on toolchain 1.49.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-5/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" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7fd09ce67b29f71dd5d29608da213849ba35265a2235bd78c09953ed5a327795 [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" "7fd09ce67b29f71dd5d29608da213849ba35265a2235bd78c09953ed5a327795", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7fd09ce67b29f71dd5d29608da213849ba35265a2235bd78c09953ed5a327795", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7fd09ce67b29f71dd5d29608da213849ba35265a2235bd78c09953ed5a327795", kill_on_drop: false }` [INFO] [stdout] 7fd09ce67b29f71dd5d29608da213849ba35265a2235bd78c09953ed5a327795 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3936a1f2138e30b8c2a09e277a51fa15ee2a32ddf354b4e6f01418f02b61a9e7 [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" "3936a1f2138e30b8c2a09e277a51fa15ee2a32ddf354b4e6f01418f02b61a9e7", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling bindgen v0.45.0 [INFO] [stderr] Compiling backtrace v0.3.13 [INFO] [stderr] Compiling clang-sys v0.26.3 [INFO] [stderr] Compiling backtrace-sys v0.1.28 [INFO] [stderr] Compiling syn v0.15.23 [INFO] [stderr] Compiling nom v4.1.1 [INFO] [stderr] Compiling serde_json v1.0.33 [INFO] [stderr] Compiling env_logger v0.6.0 [INFO] [stderr] Compiling cexpr v0.3.3 [INFO] [stderr] Compiling synstructure v0.10.1 [INFO] [stderr] Compiling serde_derive v1.0.82 [INFO] [stderr] Compiling failure_derive v0.1.3 [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-dbc0c1ad893d543e/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-dbc0c1ad893d543e/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-dbc0c1ad893d543e/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/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/rust_ffi-8a962691fb445d31.rust_ffi.b3hxga8i-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-8a962691fb445d31.rust_ffi.b3hxga8i-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-8a962691fb445d31.rust_ffi.b3hxga8i-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-8a962691fb445d31.rust_ffi.b3hxga8i-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-8a962691fb445d31.rust_ffi.b3hxga8i-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-8a962691fb445d31.rust_ffi.b3hxga8i-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-8a962691fb445d31.rust_ffi.b3hxga8i-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-8a962691fb445d31.rust_ffi.b3hxga8i-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-8a962691fb445d31.rust_ffi.b3hxga8i-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-8a962691fb445d31.rust_ffi.b3hxga8i-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-8a962691fb445d31.rust_ffi.b3hxga8i-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-8a962691fb445d31.rust_ffi.b3hxga8i-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-8a962691fb445d31.rust_ffi.b3hxga8i-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-8a962691fb445d31.rust_ffi.b3hxga8i-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-8a962691fb445d31.rust_ffi.b3hxga8i-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/rust_ffi-8a962691fb445d31.rust_ffi.b3hxga8i-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/rust_ffi-8a962691fb445d31" "/opt/rustwide/target/debug/deps/rust_ffi-8a962691fb445d31.culz0x4uup48upc.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/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/librust_ffi-c78c523b508afcf6.rlib" "/opt/rustwide/target/debug/deps/libserde_json-acc9c8baf767a10e.rlib" "/opt/rustwide/target/debug/deps/libryu-f4f67b4499568bce.rlib" "/opt/rustwide/target/debug/deps/libitoa-368a938fcc978b1f.rlib" "/opt/rustwide/target/debug/deps/libserde-7934d3ca3abc746e.rlib" "/opt/rustwide/target/debug/deps/libclap-be709765a3d12f97.rlib" "/opt/rustwide/target/debug/deps/libvec_map-8d2af087de360564.rlib" "/opt/rustwide/target/debug/deps/libtextwrap-9e7eb393cf1e6503.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-a9a20247601aeda8.rlib" "/opt/rustwide/target/debug/deps/libstrsim-5da1e89203290db5.rlib" "/opt/rustwide/target/debug/deps/libbitflags-5c7d271dfd8fcb55.rlib" "/opt/rustwide/target/debug/deps/libatty-a3dee6b529468880.rlib" "/opt/rustwide/target/debug/deps/liblibc-84189487313b975d.rlib" "/opt/rustwide/target/debug/deps/libansi_term-017778a055950e81.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e12de7683a34c500.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-446a53c2e468675f.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-86fef9fb252a2d33.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-3bed9bfd30304751.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-0e38eeb474a7b386.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-a846ed547b824740.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-c9540f0a4fb9265d.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-7d2ca66c92c356eb.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-147e2c808f949493.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-bd2a4369506670e9.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-74bfdd0ce7d0ed48.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-6777f47f1c491841.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-b104f1790174f2be.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-db37898996f45c13.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-25b7435131fc4938.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-9d4b6f3c097e876e.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-3f953ad652ab829a.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" "3936a1f2138e30b8c2a09e277a51fa15ee2a32ddf354b4e6f01418f02b61a9e7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3936a1f2138e30b8c2a09e277a51fa15ee2a32ddf354b4e6f01418f02b61a9e7", kill_on_drop: false }` [INFO] [stdout] 3936a1f2138e30b8c2a09e277a51fa15ee2a32ddf354b4e6f01418f02b61a9e7