[INFO] cloning repository https://github.com/cecton/test-yew-optional-attributes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cecton/test-yew-optional-attributes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcecton%2Ftest-yew-optional-attributes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcecton%2Ftest-yew-optional-attributes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 037a25423138a350ac6ad01160aea24d8dea5558
[INFO] checking cecton/test-yew-optional-attributes/037a25423138a350ac6ad01160aea24d8dea5558 against try#ccf408f4326a858c00dd845a64a86b16f360a801 for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcecton%2Ftest-yew-optional-attributes" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cecton/test-yew-optional-attributes on toolchain ccf408f4326a858c00dd845a64a86b16f360a801
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ccf408f4326a858c00dd845a64a86b16f360a801" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cecton/test-yew-optional-attributes
[INFO] finished tweaking git repo https://github.com/cecton/test-yew-optional-attributes
[INFO] tweaked toml for git repo https://github.com/cecton/test-yew-optional-attributes written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/cecton/test-yew-optional-attributes already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ccf408f4326a858c00dd845a64a86b16f360a801" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+ccf408f4326a858c00dd845a64a86b16f360a801" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f840297f2140501dfc2b6e4b0409d5f1f4cbd1738e1a7836a14870b63f203b50
[INFO] running `Command { std: "docker" "start" "-a" "f840297f2140501dfc2b6e4b0409d5f1f4cbd1738e1a7836a14870b63f203b50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f840297f2140501dfc2b6e4b0409d5f1f4cbd1738e1a7836a14870b63f203b50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f840297f2140501dfc2b6e4b0409d5f1f4cbd1738e1a7836a14870b63f203b50", kill_on_drop: false }`
[INFO] [stdout] f840297f2140501dfc2b6e4b0409d5f1f4cbd1738e1a7836a14870b63f203b50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+ccf408f4326a858c00dd845a64a86b16f360a801" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ffbc98bee3d4391b9c2136125e9ab8b0517ac5cbdf4c02a1435b3a1b73db766
[INFO] running `Command { std: "docker" "start" "-a" "6ffbc98bee3d4391b9c2136125e9ab8b0517ac5cbdf4c02a1435b3a1b73db766", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "6ffbc98bee3d4391b9c2136125e9ab8b0517ac5cbdf4c02a1435b3a1b73db766", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ffbc98bee3d4391b9c2136125e9ab8b0517ac5cbdf4c02a1435b3a1b73db766", kill_on_drop: false }`
[INFO] [stdout] 6ffbc98bee3d4391b9c2136125e9ab8b0517ac5cbdf4c02a1435b3a1b73db766