[INFO] fetching crate yew-callbacks 0.2.1...
[INFO] testing yew-callbacks-0.2.1 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate yew-callbacks 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate yew-callbacks 0.2.1
[INFO] finished tweaking crates.io crate yew-callbacks 0.2.1
[INFO] tweaked toml for crates.io crate yew-callbacks 0.2.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate yew-callbacks 0.2.1 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate yew-callbacks 0.2.1 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded implicit-clone v0.3.5
[INFO] [stderr]   Downloaded gloo-timers v0.2.5
[INFO] [stderr]   Downloaded gloo-history v0.1.2
[INFO] [stderr]   Downloaded serde-wasm-bindgen v0.3.1
[INFO] [stderr]   Downloaded yew-macro v0.20.0
[INFO] [stderr]   Downloaded wasm-bindgen-threads-xform v0.2.83
[INFO] [stderr]   Downloaded wasm-bindgen-externref-xform v0.2.83
[INFO] [stderr]   Downloaded wasm-bindgen-multi-value-xform v0.2.83
[INFO] [stderr]   Downloaded wasm-bindgen-wasm-interpreter v0.2.83
[INFO] [stderr]   Downloaded wit-validator v0.2.1
[INFO] [stderr]   Downloaded walrus-macro v0.19.0
[INFO] [stderr]   Downloaded camino v1.1.2
[INFO] [stderr]   Downloaded wit-parser v0.2.0
[INFO] [stderr]   Downloaded wit-schema-version v0.1.0
[INFO] [stderr]   Downloaded yew v0.20.0
[INFO] [stderr]   Downloaded wit-writer v0.2.0
[INFO] [stderr]   Downloaded xtask-wasm-run-example v0.1.3
[INFO] [stderr]   Downloaded xtask-watch v0.1.6
[INFO] [stderr]   Downloaded wast v21.0.0
[INFO] [stderr]   Downloaded wasmparser v0.59.0
[INFO] [stderr]   Downloaded xtask-wasm v0.1.10
[INFO] [stderr]   Downloaded clap v4.1.1
[INFO] [stderr]   Downloaded wasmparser v0.77.0
[INFO] [stderr]   Downloaded wasm-bindgen-cli-support v0.2.83
[INFO] [stderr]   Downloaded tokio v1.24.1
[INFO] [stderr]   Downloaded gloo v0.8.0
[INFO] [stderr]   Downloaded wasm-bindgen-wasm-conventions v0.2.83
[INFO] [stderr]   Downloaded walrus v0.19.0
[INFO] [stderr]   Downloaded wit-text v0.8.0
[INFO] [stderr]   Downloaded wit-walrus v0.6.0
[INFO] [stderr]   Downloaded gloo-net v0.2.5
[INFO] [stderr]   Downloaded rustix v0.36.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8dbe7f7af8a1a3fbf54aa466efb952adb9f6d50b8016d4b42b9e14b49fc4a7a7
[INFO] running `Command { std: "docker" "start" "-a" "8dbe7f7af8a1a3fbf54aa466efb952adb9f6d50b8016d4b42b9e14b49fc4a7a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8dbe7f7af8a1a3fbf54aa466efb952adb9f6d50b8016d4b42b9e14b49fc4a7a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dbe7f7af8a1a3fbf54aa466efb952adb9f6d50b8016d4b42b9e14b49fc4a7a7", kill_on_drop: false }`
[INFO] [stdout] 8dbe7f7af8a1a3fbf54aa466efb952adb9f6d50b8016d4b42b9e14b49fc4a7a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9961a9d5362ff1cd9260810b738f48e8202893c15004d6fa5a22cb4ef24815a1
[INFO] running `Command { std: "docker" "start" "-a" "9961a9d5362ff1cd9260810b738f48e8202893c15004d6fa5a22cb4ef24815a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.49/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "9961a9d5362ff1cd9260810b738f48e8202893c15004d6fa5a22cb4ef24815a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9961a9d5362ff1cd9260810b738f48e8202893c15004d6fa5a22cb4ef24815a1", kill_on_drop: false }`
[INFO] [stdout] 9961a9d5362ff1cd9260810b738f48e8202893c15004d6fa5a22cb4ef24815a1