[INFO] cloning repository https://github.com/richardanaya/rust-simple-virtual-dom
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/richardanaya/rust-simple-virtual-dom" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichardanaya%2Frust-simple-virtual-dom", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichardanaya%2Frust-simple-virtual-dom'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad93369513d2b8367816155fe0e17c42bc35a52f
[INFO] testing richardanaya/rust-simple-virtual-dom against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichardanaya%2Frust-simple-virtual-dom" "/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/richardanaya/rust-simple-virtual-dom on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/richardanaya/rust-simple-virtual-dom
[INFO] finished tweaking git repo https://github.com/richardanaya/rust-simple-virtual-dom
[INFO] tweaked toml for git repo https://github.com/richardanaya/rust-simple-virtual-dom written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/richardanaya/rust-simple-virtual-dom already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3787a76a0b1d9a6f6f7a2c4d4569c45001d5d87a688d8a58bea2621e53067fe3
[INFO] running `Command { std: "docker" "start" "-a" "3787a76a0b1d9a6f6f7a2c4d4569c45001d5d87a688d8a58bea2621e53067fe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3787a76a0b1d9a6f6f7a2c4d4569c45001d5d87a688d8a58bea2621e53067fe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3787a76a0b1d9a6f6f7a2c4d4569c45001d5d87a688d8a58bea2621e53067fe3", kill_on_drop: false }`
[INFO] [stdout] 3787a76a0b1d9a6f6f7a2c4d4569c45001d5d87a688d8a58bea2621e53067fe3
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 657452ee29aa336974e7f9e7de9be813e713933c464ed03907918c637b7311e0
[INFO] running `Command { std: "docker" "start" "-a" "657452ee29aa336974e7f9e7de9be813e713933c464ed03907918c637b7311e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple-virtual-dom v0.1.0 (/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/simple_virtual_dom-2613e4369abe639c.simple_virtual_dom.5b679eaa-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-2613e4369abe639c.simple_virtual_dom.5b679eaa-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-2613e4369abe639c.simple_virtual_dom.5b679eaa-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-2613e4369abe639c.simple_virtual_dom.5b679eaa-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-2613e4369abe639c.simple_virtual_dom.5b679eaa-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-2613e4369abe639c.simple_virtual_dom.5b679eaa-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-2613e4369abe639c.simple_virtual_dom.5b679eaa-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-2613e4369abe639c.simple_virtual_dom.5b679eaa-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-2613e4369abe639c.simple_virtual_dom.5b679eaa-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-2613e4369abe639c.simple_virtual_dom.5b679eaa-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-2613e4369abe639c.simple_virtual_dom.5b679eaa-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-2613e4369abe639c.simple_virtual_dom.5b679eaa-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-2613e4369abe639c.simple_virtual_dom.5b679eaa-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-2613e4369abe639c.simple_virtual_dom.5b679eaa-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-2613e4369abe639c.simple_virtual_dom.5b679eaa-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-2613e4369abe639c.simple_virtual_dom.5b679eaa-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-2613e4369abe639c.17zfk4gtccam9gxf.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,--start-group" "-Wl,-Bstatic" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-008055cc7d873802.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-06f01ac2578bda94.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-f9a3c3274a1835e0.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-d4cbb754ee9f4daa.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-95c14e1c1e3ebcc4.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-d489f0ca872880cc.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-75f07df0b18fea39.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-0c35b278736219a2.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-e530649c9a06e3c6.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-6b148909d375a785.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-cd15fa647f4775d1.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-74be3a703f788ba2.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-8f2c5b445c28b2e3.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-8480e85e0be96197.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-ac23a75f6f42004e.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-557ba8776e04d182.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-4beb03d03503c439.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-dd7db1bec6909f24.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-2613e4369abe639c" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
[INFO] [stdout]           (.text+0x24): undefined reference to `main'
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout]   = help: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified
[INFO] [stdout]   = note: use the `-l` flag to specify native libraries to link
[INFO] [stdout]   = note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#cargorustc-link-libkindname)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `simple-virtual-dom` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "657452ee29aa336974e7f9e7de9be813e713933c464ed03907918c637b7311e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "657452ee29aa336974e7f9e7de9be813e713933c464ed03907918c637b7311e0", kill_on_drop: false }`
[INFO] [stdout] 657452ee29aa336974e7f9e7de9be813e713933c464ed03907918c637b7311e0