[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 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichardanaya%2Frust-simple-virtual-dom" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/richardanaya/rust-simple-virtual-dom on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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-12/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" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3fa256093cc0f41c1288cf386f3628e81d3b7fce178b23d152c97d41c38de6c
[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" "a3fa256093cc0f41c1288cf386f3628e81d3b7fce178b23d152c97d41c38de6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3fa256093cc0f41c1288cf386f3628e81d3b7fce178b23d152c97d41c38de6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3fa256093cc0f41c1288cf386f3628e81d3b7fce178b23d152c97d41c38de6c", kill_on_drop: false }`
[INFO] [stdout] a3fa256093cc0f41c1288cf386f3628e81d3b7fce178b23d152c97d41c38de6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72121b7e5e3592a914894e3ac57d1fc0f0b3ef7c912f35f39fe1c763d5549327
[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" "72121b7e5e3592a914894e3ac57d1fc0f0b3ef7c912f35f39fe1c763d5549327", 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-0b40035c579f38db.simple_virtual_dom.5ksz54wt-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-0b40035c579f38db.simple_virtual_dom.5ksz54wt-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-0b40035c579f38db.simple_virtual_dom.5ksz54wt-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-0b40035c579f38db.simple_virtual_dom.5ksz54wt-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-0b40035c579f38db.simple_virtual_dom.5ksz54wt-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-0b40035c579f38db.simple_virtual_dom.5ksz54wt-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-0b40035c579f38db.simple_virtual_dom.5ksz54wt-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-0b40035c579f38db.simple_virtual_dom.5ksz54wt-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-0b40035c579f38db.simple_virtual_dom.5ksz54wt-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-0b40035c579f38db.simple_virtual_dom.5ksz54wt-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-0b40035c579f38db.simple_virtual_dom.5ksz54wt-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-0b40035c579f38db.simple_virtual_dom.5ksz54wt-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-0b40035c579f38db.simple_virtual_dom.5ksz54wt-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-0b40035c579f38db.simple_virtual_dom.5ksz54wt-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-0b40035c579f38db.simple_virtual_dom.5ksz54wt-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-0b40035c579f38db.simple_virtual_dom.5ksz54wt-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-0b40035c579f38db.2bc2oeigzo2hqqs8.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,--start-group" "-Wl,-Bstatic" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-2420485b9e5ef5e1.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-785e3cb61c4b1960.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-087191a88bdaa22d.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-9981842c02975178.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-6fb405869b015fde.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-d05c5c3c56004b7b.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-42d74d2097528b38.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-fb36534c113d2209.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-b56b9042c12b6535.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-491902d6cb3e76df.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-61834e0981b8c367.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-f78aa99d613a55bc.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-53ee54cd7fed2c57.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-544ecdbd6cda3c58.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-379cc252b6943a79.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-8063eea38dcc5e62.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-5b228734afae15ee.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-d6c7a399d95d173f.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/simple_virtual_dom-0b40035c579f38db" "-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] 
[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" "72121b7e5e3592a914894e3ac57d1fc0f0b3ef7c912f35f39fe1c763d5549327", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72121b7e5e3592a914894e3ac57d1fc0f0b3ef7c912f35f39fe1c763d5549327", kill_on_drop: false }`
[INFO] [stdout] 72121b7e5e3592a914894e3ac57d1fc0f0b3ef7c912f35f39fe1c763d5549327
