[INFO] fetching crate rurust 0.2.0...
[INFO] testing rurust-0.2.0 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate rurust 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate rurust 0.2.0
[INFO] finished tweaking crates.io crate rurust 0.2.0
[INFO] tweaked toml for crates.io crate rurust 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rurust 0.2.0 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rurust 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] b1a123851a4806a1f05938aacc1a752d3166283d0545a9feb3234e914b4267ea
[INFO] running `Command { std: "docker" "start" "b1a123851a4806a1f05938aacc1a752d3166283d0545a9feb3234e914b4267ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1a123851a4806a1f05938aacc1a752d3166283d0545a9feb3234e914b4267ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b1a123851a4806a1f05938aacc1a752d3166283d0545a9feb3234e914b4267ea" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1a123851a4806a1f05938aacc1a752d3166283d0545a9feb3234e914b4267ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b1a123851a4806a1f05938aacc1a752d3166283d0545a9feb3234e914b4267ea" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling mri-sys v0.2.5
[INFO] [stderr]    Compiling rurust v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/vm.rs:99:62
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn define_global_function(&self, name: &str, f: *mut extern fn() -> Value, arg_count: u8) -> Value {
[INFO] [stdout]    |                                                              ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]  --> src/builder/klass.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 |     func: *mut extern fn() -> Value,
[INFO] [stdout]   |                ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/builder/klass.rs:87:57
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn method<S>(mut self, name: S, func_addr: *mut extern fn() -> Value, arg_count: i8) -> Self
[INFO] [stdout]    |                                                         ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/builder/klass.rs:98:67
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn singleton_method<S>(mut self, name: S, func_addr: *mut extern fn() -> Value, arg_count: i8) -> Self
[INFO] [stdout]    |                                                                   ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]  --> src/builder/module.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 |     func: *mut extern fn() -> Value,
[INFO] [stdout]   |                ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/builder/module.rs:65:59
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn function<S>(mut self, name: S, func_addr: *mut extern fn() -> Value, arg_count: i8) -> Self
[INFO] [stdout]    |                                                           ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]  --> tools/repl.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub extern fn thing(self_obj: rurust::Value, num: rurust::Value) -> rurust::Value {
[INFO] [stdout]   |     ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/build/rurust/6d493891cdcadb6b/out/rustcrKI1zh/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/build/rurust/4bc41173c913093a/out/librurust-4bc41173c913093a.rlib" "/opt/rustwide/target/debug/build/lazy_static/af860367908b8176/out/liblazy_static-af860367908b8176.rlib" "/opt/rustwide/target/debug/build/mri-sys/74ca4fa70e4d4b55/out/libmri_sys-74ca4fa70e4d4b55.rlib" "/opt/rustwide/target/debug/build/libc/6f61a004afeb87df/out/liblibc-6f61a004afeb87df.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,libcfg_if-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,liblibc-*,librustc_std_workspace_core-*,liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lgmp" "-lruby" "-lcrypt" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-L" "/opt/rustwide/target/debug/build/rurust/6d493891cdcadb6b/out/rustcrKI1zh/raw-dylibs" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/build/rurust/6d493891cdcadb6b/out/repl" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: unable to find library -lruby
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rurust` (bin "repl") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "b1a123851a4806a1f05938aacc1a752d3166283d0545a9feb3234e914b4267ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1a123851a4806a1f05938aacc1a752d3166283d0545a9feb3234e914b4267ea", kill_on_drop: false }`
[INFO] [stdout] b1a123851a4806a1f05938aacc1a752d3166283d0545a9feb3234e914b4267ea
