[INFO] cloning repository https://github.com/ethagnawl/rust-c-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/ethagnawl/rust-c-ffi-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethagnawl%2Frust-c-ffi-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethagnawl%2Frust-c-ffi-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92dd90d7c5bc96ca1a98fd355cc5c75c5a75aab3
[INFO] testing ethagnawl/rust-c-ffi-demo against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethagnawl%2Frust-c-ffi-demo" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ethagnawl/rust-c-ffi-demo on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ethagnawl/rust-c-ffi-demo
[INFO] finished tweaking git repo https://github.com/ethagnawl/rust-c-ffi-demo
[INFO] tweaked toml for git repo https://github.com/ethagnawl/rust-c-ffi-demo written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/ethagnawl/rust-c-ffi-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8be3bc2a89559d20412fff1cb01594baf5ad438fa09404c13632387c80ccb86f
[INFO] running `Command { std: "docker" "start" "-a" "8be3bc2a89559d20412fff1cb01594baf5ad438fa09404c13632387c80ccb86f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8be3bc2a89559d20412fff1cb01594baf5ad438fa09404c13632387c80ccb86f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8be3bc2a89559d20412fff1cb01594baf5ad438fa09404c13632387c80ccb86f", kill_on_drop: false }`
[INFO] [stdout] 8be3bc2a89559d20412fff1cb01594baf5ad438fa09404c13632387c80ccb86f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17630ad16e792b2ab09edecaced63b81bac940142d8358c0554a41a732336d08
[INFO] running `Command { std: "docker" "start" "-a" "17630ad16e792b2ab09edecaced63b81bac940142d8358c0554a41a732336d08", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling c_ffi_demo v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/c_ffi_demo-2953da7df2cade66.c_ffi_demo.30c9bf69-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/c_ffi_demo-2953da7df2cade66.c_ffi_demo.30c9bf69-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/c_ffi_demo-2953da7df2cade66.c_ffi_demo.30c9bf69-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/c_ffi_demo-2953da7df2cade66.c_ffi_demo.30c9bf69-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/c_ffi_demo-2953da7df2cade66.c_ffi_demo.30c9bf69-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/c_ffi_demo-2953da7df2cade66.c_ffi_demo.30c9bf69-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/c_ffi_demo-2953da7df2cade66.c_ffi_demo.30c9bf69-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/c_ffi_demo-2953da7df2cade66.c_ffi_demo.30c9bf69-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/c_ffi_demo-2953da7df2cade66.c_ffi_demo.30c9bf69-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/c_ffi_demo-2953da7df2cade66.c_ffi_demo.30c9bf69-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/c_ffi_demo-2953da7df2cade66.c_ffi_demo.30c9bf69-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/c_ffi_demo-2953da7df2cade66.c_ffi_demo.30c9bf69-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/c_ffi_demo-2953da7df2cade66.c_ffi_demo.30c9bf69-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/c_ffi_demo-2953da7df2cade66.c_ffi_demo.30c9bf69-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/c_ffi_demo-2953da7df2cade66.c_ffi_demo.30c9bf69-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/c_ffi_demo-2953da7df2cade66.c_ffi_demo.30c9bf69-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/c_ffi_demo-2953da7df2cade66.58fqc0lrqrtlovco.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug/build/c_ffi_demo-bc53ad0c4573d0e6/out" "-L" "/opt/rustwide/rustup-home/toolchains/432e145bd5a974c5b6f4dd9b352891bd7502b69d/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lyaml" "-Wl,-Bstatic" "-Wl,--whole-archive" "-lgreet" "-Wl,--no-whole-archive" "/opt/rustwide/target/debug/deps/liblibc-13d3d8fa232b7213.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/432e145bd5a974c5b6f4dd9b352891bd7502b69d/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-37fdd654777c296f.rlib" "/opt/rustwide/rustup-home/toolchains/432e145bd5a974c5b6f4dd9b352891bd7502b69d/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-d883bf2137e9181a.rlib" "/opt/rustwide/rustup-home/toolchains/432e145bd5a974c5b6f4dd9b352891bd7502b69d/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-22ab8f3db88b586e.rlib" "/opt/rustwide/rustup-home/toolchains/432e145bd5a974c5b6f4dd9b352891bd7502b69d/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-0167c9242d0931d5.rlib" "/opt/rustwide/rustup-home/toolchains/432e145bd5a974c5b6f4dd9b352891bd7502b69d/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-361790a1a5505fc5.rlib" "/opt/rustwide/rustup-home/toolchains/432e145bd5a974c5b6f4dd9b352891bd7502b69d/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-01c2ffe1ecd05a67.rlib" "/opt/rustwide/rustup-home/toolchains/432e145bd5a974c5b6f4dd9b352891bd7502b69d/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-ec79e29a889fe805.rlib" "/opt/rustwide/rustup-home/toolchains/432e145bd5a974c5b6f4dd9b352891bd7502b69d/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-001a3456e8a8331b.rlib" "/opt/rustwide/rustup-home/toolchains/432e145bd5a974c5b6f4dd9b352891bd7502b69d/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-e8f1404290f0f040.rlib" "/opt/rustwide/rustup-home/toolchains/432e145bd5a974c5b6f4dd9b352891bd7502b69d/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-76f46d0f23360a60.rlib" "/opt/rustwide/rustup-home/toolchains/432e145bd5a974c5b6f4dd9b352891bd7502b69d/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-baf0bdc5eb131895.rlib" "/opt/rustwide/rustup-home/toolchains/432e145bd5a974c5b6f4dd9b352891bd7502b69d/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-3a6a4ee6592d9370.rlib" "/opt/rustwide/rustup-home/toolchains/432e145bd5a974c5b6f4dd9b352891bd7502b69d/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-1cc90d9dd57195f8.rlib" "/opt/rustwide/rustup-home/toolchains/432e145bd5a974c5b6f4dd9b352891bd7502b69d/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-0e91863ffbec5148.rlib" "/opt/rustwide/rustup-home/toolchains/432e145bd5a974c5b6f4dd9b352891bd7502b69d/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-69528f2eac185ac9.rlib" "/opt/rustwide/rustup-home/toolchains/432e145bd5a974c5b6f4dd9b352891bd7502b69d/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-52d5241975807511.rlib" "/opt/rustwide/rustup-home/toolchains/432e145bd5a974c5b6f4dd9b352891bd7502b69d/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-9924c22ae1efcf66.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/432e145bd5a974c5b6f4dd9b352891bd7502b69d/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-d1241f7bd234a268.rlib" "-Wl,-Bdynamic" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/432e145bd5a974c5b6f4dd9b352891bd7502b69d/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/c_ffi_demo-2953da7df2cade66" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lyaml
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `c_ffi_demo`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "17630ad16e792b2ab09edecaced63b81bac940142d8358c0554a41a732336d08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17630ad16e792b2ab09edecaced63b81bac940142d8358c0554a41a732336d08", kill_on_drop: false }`
[INFO] [stdout] 17630ad16e792b2ab09edecaced63b81bac940142d8358c0554a41a732336d08