[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 master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcecton%2Ftest-yew-optional-attributes" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[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-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cecton/test-yew-optional-attributes on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded yew-macro v0.17.0
[INFO] [stderr]   Downloaded futures v0.3.7
[INFO] [stderr]   Downloaded futures-task v0.3.7
[INFO] [stderr]   Downloaded futures-sink v0.3.7
[INFO] [stderr]   Downloaded gloo-console-timer v0.1.0
[INFO] [stderr]   Downloaded cfg-match v0.2.1
[INFO] [stderr]   Downloaded anymap v0.12.1
[INFO] [stderr]   Downloaded futures-executor v0.3.7
[INFO] [stderr]   Downloaded futures-channel v0.3.7
[INFO] [stderr]   Downloaded futures-macro v0.3.7
[INFO] [stderr]   Downloaded futures-core v0.3.7
[INFO] [stderr]   Downloaded futures-io v0.3.7
[INFO] [stderr]   Downloaded gloo-file v0.1.0
[INFO] [stderr]   Downloaded gloo v0.2.1
[INFO] [stderr]   Downloaded yew v0.17.4
[INFO] [stderr]   Downloaded futures-util v0.3.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbd10d8cad703c013e92ef46c96e22b4cb70f9f7867c9df73e80cf730a999037
[INFO] running `Command { std: "docker" "start" "-a" "dbd10d8cad703c013e92ef46c96e22b4cb70f9f7867c9df73e80cf730a999037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbd10d8cad703c013e92ef46c96e22b4cb70f9f7867c9df73e80cf730a999037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbd10d8cad703c013e92ef46c96e22b4cb70f9f7867c9df73e80cf730a999037", kill_on_drop: false }`
[INFO] [stdout] dbd10d8cad703c013e92ef46c96e22b4cb70f9f7867c9df73e80cf730a999037
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17c63f996faf15db8874ea151da5e412fe8a0789850ccfde4e17e67ce9015576
[INFO] running `Command { std: "docker" "start" "-a" "17c63f996faf15db8874ea151da5e412fe8a0789850ccfde4e17e67ce9015576", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.68
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling bumpalo v3.4.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.68
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking futures-sink v0.3.7
[INFO] [stderr]     Checking futures-core v0.3.7
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking futures-io v0.3.7
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking futures-channel v0.3.7
[INFO] [stderr]     Checking futures-task v0.3.7
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling yew v0.17.4
[INFO] [stderr]    Compiling boolinator v2.4.0
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]     Checking cfg-match v0.2.1
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.68
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling futures-macro v0.3.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling yew-macro v0.17.0
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.68
[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking pin-project v1.0.1
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.68
[INFO] [stderr]     Checking futures-util v0.3.7
[INFO] [stdout] error: older versions of the `wasm-bindgen` crate are incompatible with current versions of Rust; please update to `wasm-bindgen` v0.2.88
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wasm-bindgen` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "17c63f996faf15db8874ea151da5e412fe8a0789850ccfde4e17e67ce9015576", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17c63f996faf15db8874ea151da5e412fe8a0789850ccfde4e17e67ce9015576", kill_on_drop: false }`
[INFO] [stdout] 17c63f996faf15db8874ea151da5e412fe8a0789850ccfde4e17e67ce9015576