[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 master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichardanaya%2Frust-simple-virtual-dom" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/richardanaya/rust-simple-virtual-dom on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", 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-4/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" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d63fb0040f163dd23c0aad6f62fe3f3639dc80779c1264763988bc3602582988
[INFO] running `Command { std: "docker" "start" "-a" "d63fb0040f163dd23c0aad6f62fe3f3639dc80779c1264763988bc3602582988", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d63fb0040f163dd23c0aad6f62fe3f3639dc80779c1264763988bc3602582988", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d63fb0040f163dd23c0aad6f62fe3f3639dc80779c1264763988bc3602582988", kill_on_drop: false }`
[INFO] [stdout] d63fb0040f163dd23c0aad6f62fe3f3639dc80779c1264763988bc3602582988
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c984f21ac26a0b8655689b07d9ccdcfe59df1144d4b77aea18fcceddfe13463b
[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" "c984f21ac26a0b8655689b07d9ccdcfe59df1144d4b77aea18fcceddfe13463b", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple-virtual-dom v0.1.0 (/opt/rustwide/workdir)
[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/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/simple_virtual_dom-df894c838c04c7b5.simple_virtual_dom.ebj0u0sv-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-df894c838c04c7b5.simple_virtual_dom.ebj0u0sv-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-df894c838c04c7b5.simple_virtual_dom.ebj0u0sv-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-df894c838c04c7b5.simple_virtual_dom.ebj0u0sv-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-df894c838c04c7b5.simple_virtual_dom.ebj0u0sv-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-df894c838c04c7b5.simple_virtual_dom.ebj0u0sv-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-df894c838c04c7b5.simple_virtual_dom.ebj0u0sv-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-df894c838c04c7b5.simple_virtual_dom.ebj0u0sv-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-df894c838c04c7b5.simple_virtual_dom.ebj0u0sv-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-df894c838c04c7b5.simple_virtual_dom.ebj0u0sv-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-df894c838c04c7b5.simple_virtual_dom.ebj0u0sv-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-df894c838c04c7b5.simple_virtual_dom.ebj0u0sv-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-df894c838c04c7b5.simple_virtual_dom.ebj0u0sv-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-df894c838c04c7b5.simple_virtual_dom.ebj0u0sv-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-df894c838c04c7b5.simple_virtual_dom.ebj0u0sv-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-df894c838c04c7b5.simple_virtual_dom.ebj0u0sv-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-df894c838c04c7b5" "/opt/rustwide/target/debug/deps/simple_virtual_dom-df894c838c04c7b5.13qhn76tgs11v289.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,--start-group" "-Wl,-Bstatic" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-5989bcf78182f65e.rlib" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-4d6da34bc177af8d.rlib" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-10e0d6c948699482.rlib" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-c2318e2415657781.rlib" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-3815b93ed84badbb.rlib" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-d7999143d95238cb.rlib" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-c58298a0d40df8b8.rlib" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-b7de97e2ba6fb4e2.rlib" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-6f71c9f654d72cce.rlib" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-95ea48ddc44a311b.rlib" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-7402cd4761aebc14.rlib" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-68f423c59dc48a40.rlib" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-54580c7798bf2225.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-95a4d456339b7385.rlib" "-Wl,-Bdynamic" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `simple-virtual-dom`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "c984f21ac26a0b8655689b07d9ccdcfe59df1144d4b77aea18fcceddfe13463b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c984f21ac26a0b8655689b07d9ccdcfe59df1144d4b77aea18fcceddfe13463b", kill_on_drop: false }`
[INFO] [stdout] c984f21ac26a0b8655689b07d9ccdcfe59df1144d4b77aea18fcceddfe13463b