[INFO] cloning repository https://github.com/valdemarceccon/connect4_minmax_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/valdemarceccon/connect4_minmax_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvaldemarceccon%2Fconnect4_minmax_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvaldemarceccon%2Fconnect4_minmax_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fd2cc2dd9bb08f9ee2d908152d1a4aee2eb0201b
[INFO] testing valdemarceccon/connect4_minmax_rust against 1.64.0 for beta-1.65-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvaldemarceccon%2Fconnect4_minmax_rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/valdemarceccon/connect4_minmax_rust on toolchain 1.64.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.64.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/valdemarceccon/connect4_minmax_rust
[INFO] finished tweaking git repo https://github.com/valdemarceccon/connect4_minmax_rust
[INFO] tweaked toml for git repo https://github.com/valdemarceccon/connect4_minmax_rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/valdemarceccon/connect4_minmax_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.64.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ddc34c592457e2d8060e8df48cae356ddb5af70603899b3024d9b31a9ca25251
[INFO] running `Command { std: "docker" "start" "-a" "ddc34c592457e2d8060e8df48cae356ddb5af70603899b3024d9b31a9ca25251", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddc34c592457e2d8060e8df48cae356ddb5af70603899b3024d9b31a9ca25251", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddc34c592457e2d8060e8df48cae356ddb5af70603899b3024d9b31a9ca25251", kill_on_drop: false }`
[INFO] [stdout] ddc34c592457e2d8060e8df48cae356ddb5af70603899b3024d9b31a9ca25251
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "RUSTDOCFLAGS=--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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfaff374788b68660e9ee05f53a79eb43e9526ea67ce94b71b6f395c17d31e5c
[INFO] running `Command { std: "docker" "start" "-a" "dfaff374788b68660e9ee05f53a79eb43e9526ea67ce94b71b6f395c17d31e5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling connect4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.42s
[INFO] running `Command { std: "docker" "inspect" "dfaff374788b68660e9ee05f53a79eb43e9526ea67ce94b71b6f395c17d31e5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfaff374788b68660e9ee05f53a79eb43e9526ea67ce94b71b6f395c17d31e5c", kill_on_drop: false }`
[INFO] [stdout] dfaff374788b68660e9ee05f53a79eb43e9526ea67ce94b71b6f395c17d31e5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "RUSTDOCFLAGS=--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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d15b1e2473780be6cd8149a6b17b7be6e1d00749fee41b003192de988c5dd242
[INFO] running `Command { std: "docker" "start" "-a" "d15b1e2473780be6cd8149a6b17b7be6e1d00749fee41b003192de988c5dd242", kill_on_drop: false }`
[INFO] [stderr]    Compiling connect4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/tmp/rustcnS1b24/symbols.o" "/opt/rustwide/target/debug/deps/connect4_core-be0bc1fb4258ef1a.connect4_core.4301cbeb-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/connect4_core-be0bc1fb4258ef1a.connect4_core.4301cbeb-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/connect4_core-be0bc1fb4258ef1a.connect4_core.4301cbeb-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/connect4_core-be0bc1fb4258ef1a.connect4_core.4301cbeb-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/connect4_core-be0bc1fb4258ef1a.connect4_core.4301cbeb-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/connect4_core-be0bc1fb4258ef1a.connect4_core.4301cbeb-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/connect4_core-be0bc1fb4258ef1a.connect4_core.4301cbeb-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/connect4_core-be0bc1fb4258ef1a.connect4_core.4301cbeb-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/connect4_core-be0bc1fb4258ef1a.connect4_core.4301cbeb-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/connect4_core-be0bc1fb4258ef1a.connect4_core.4301cbeb-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/connect4_core-be0bc1fb4258ef1a.connect4_core.4301cbeb-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/connect4_core-be0bc1fb4258ef1a.connect4_core.4301cbeb-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/connect4_core-be0bc1fb4258ef1a.connect4_core.4301cbeb-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/connect4_core-be0bc1fb4258ef1a.connect4_core.4301cbeb-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/connect4_core-be0bc1fb4258ef1a.connect4_core.4301cbeb-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/connect4_core-be0bc1fb4258ef1a.connect4_core.4301cbeb-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/connect4_core-be0bc1fb4258ef1a.2r5k76z4uq72aann.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest-f8abcd39963be1a9.rlib" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts-fc81604f9f272244.rlib" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width-ecd0ecec0bda740b.rlib" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_std-715ffe8b3e8b2eb5.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-5670385a2fe8b60b.rlib" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-fd56ba6dbf7aaecc.rlib" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-b8acf8e5c2e85baa.rlib" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-1706edefffdca0a2.rlib" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-f483302e0b13708e.rlib" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-725b0718fc18e1ed.rlib" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-de685fcf2157e6fb.rlib" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-f613ac3eda05b9ff.rlib" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-3de98a7d049af6a1.rlib" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-c12183655bdce152.rlib" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-0fc7beea925de7e3.rlib" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-8c34825485bf59dc.rlib" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-ba5f7e926e729d81.rlib" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-643de0950163a839.rlib" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-539ea2f72ef89687.rlib" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-871432094bb4c885.rlib" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-ef1a8ee61f2e39bf.rlib" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-f1646747442c1c7b.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-ff283b4bf550fa1c.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/1.64.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/connect4_core-be0bc1fb4258ef1a" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: 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 `connect4` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "d15b1e2473780be6cd8149a6b17b7be6e1d00749fee41b003192de988c5dd242", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d15b1e2473780be6cd8149a6b17b7be6e1d00749fee41b003192de988c5dd242", kill_on_drop: false }`
[INFO] [stdout] d15b1e2473780be6cd8149a6b17b7be6e1d00749fee41b003192de988c5dd242