[INFO] cloning repository https://github.com/ivan-jukic/connect4-rust-wasm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ivan-jukic/connect4-rust-wasm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivan-jukic%2Fconnect4-rust-wasm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivan-jukic%2Fconnect4-rust-wasm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1ec07c094c6d39894fbf089d2febf60456adb3f1
[INFO] checking ivan-jukic/connect4-rust-wasm against try#4a04890980766cc79878135f5ade8c0c4321e943 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivan-jukic%2Fconnect4-rust-wasm" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ivan-jukic/connect4-rust-wasm on toolchain 4a04890980766cc79878135f5ade8c0c4321e943
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ivan-jukic/connect4-rust-wasm
[INFO] finished tweaking git repo https://github.com/ivan-jukic/connect4-rust-wasm
[INFO] tweaked toml for git repo https://github.com/ivan-jukic/connect4-rust-wasm written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ivan-jukic/connect4-rust-wasm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.10
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48bd7f7c3d9dcd005ff7e4a158e7aa566c8ffa40acd94f7583ddf6e9573ab5b4
[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" "48bd7f7c3d9dcd005ff7e4a158e7aa566c8ffa40acd94f7583ddf6e9573ab5b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48bd7f7c3d9dcd005ff7e4a158e7aa566c8ffa40acd94f7583ddf6e9573ab5b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48bd7f7c3d9dcd005ff7e4a158e7aa566c8ffa40acd94f7583ddf6e9573ab5b4", kill_on_drop: false }`
[INFO] [stdout] 48bd7f7c3d9dcd005ff7e4a158e7aa566c8ffa40acd94f7583ddf6e9573ab5b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 3f578b72eef1bc121692f2941b7df2ba8a971245fe9cc8d6e66ee03cd176a153
[INFO] running `Command { std: "docker" "start" "-a" "3f578b72eef1bc121692f2941b7df2ba8a971245fe9cc8d6e66ee03cd176a153", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.60
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bumpalo v3.2.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.60
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.10
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.60
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.60
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.60
[INFO] [stderr]     Checking js-sys v0.3.37
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]     Checking connect4 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.10
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.10
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.67s
[INFO] running `Command { std: "docker" "inspect" "3f578b72eef1bc121692f2941b7df2ba8a971245fe9cc8d6e66ee03cd176a153", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f578b72eef1bc121692f2941b7df2ba8a971245fe9cc8d6e66ee03cd176a153", kill_on_drop: false }`
[INFO] [stdout] 3f578b72eef1bc121692f2941b7df2ba8a971245fe9cc8d6e66ee03cd176a153