[INFO] fetching crate smithy_core 0.0.7...
[INFO] testing smithy_core-0.0.7 against 1.91.0 for beta-1.92-2
[INFO] extracting crate smithy_core 0.0.7 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate smithy_core 0.0.7
[INFO] finished tweaking crates.io crate smithy_core 0.0.7
[INFO] tweaked toml for crates.io crate smithy_core 0.0.7 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate smithy_core 0.0.7 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 21 packages to latest compatible versions
[INFO] [stderr]       Adding futures v0.1.31 (available: v0.3.31)
[INFO] [stderr]       Adding js-sys v0.3.57 (available: v0.3.82)
[INFO] [stderr]       Adding wasm-bindgen v0.2.80 (available: v0.2.105)
[INFO] [stderr]       Adding wasm-bindgen-backend v0.2.80 (available: v0.2.104)
[INFO] [stderr]       Adding wasm-bindgen-futures v0.3.27 (available: v0.4.55)
[INFO] [stderr]       Adding wasm-bindgen-macro v0.2.80 (available: v0.2.105)
[INFO] [stderr]       Adding wasm-bindgen-macro-support v0.2.80 (available: v0.2.105)
[INFO] [stderr]       Adding wasm-bindgen-shared v0.2.80 (available: v0.2.105)
[INFO] [stderr]       Adding web-sys v0.3.57 (available: v0.3.82)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smithy_types v0.0.7
[INFO] [stderr]   Downloaded custom_derive v0.1.7
[INFO] [stderr]   Downloaded enum_derive v0.1.7
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.3.27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db077f1fd2b46c5a15de367e57387568577eef4919ea3ff3e7ac77bf18e197ec
[INFO] running `Command { std: "docker" "start" "-a" "db077f1fd2b46c5a15de367e57387568577eef4919ea3ff3e7ac77bf18e197ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db077f1fd2b46c5a15de367e57387568577eef4919ea3ff3e7ac77bf18e197ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db077f1fd2b46c5a15de367e57387568577eef4919ea3ff3e7ac77bf18e197ec", kill_on_drop: false }`
[INFO] [stdout] db077f1fd2b46c5a15de367e57387568577eef4919ea3ff3e7ac77bf18e197ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f9302b22fcb540470ab1708c8d4b0a1a033712d3e4d3c9fe13c60c87eeb2e0d
[INFO] running `Command { std: "docker" "start" "-a" "7f9302b22fcb540470ab1708c8d4b0a1a033712d3e4d3c9fe13c60c87eeb2e0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.80
[INFO] [stderr]    Compiling bumpalo v3.19.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.80
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling custom_derive v0.1.7
[INFO] [stderr]    Compiling enum_derive v0.1.7
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.80
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.80
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.80
[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] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/wasm-bindgen-0.2.80/src/lib.rs:11:34
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![cfg_attr(feature = "nightly", feature(unsize))]
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wasm-bindgen` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "7f9302b22fcb540470ab1708c8d4b0a1a033712d3e4d3c9fe13c60c87eeb2e0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f9302b22fcb540470ab1708c8d4b0a1a033712d3e4d3c9fe13c60c87eeb2e0d", kill_on_drop: false }`
[INFO] [stdout] 7f9302b22fcb540470ab1708c8d4b0a1a033712d3e4d3c9fe13c60c87eeb2e0d