[INFO] fetching crate smithy_core 0.0.7...
[INFO] documenting smithy_core-0.0.7 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate smithy_core 0.0.7 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate smithy_core 0.0.7 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smithy_types v0.0.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92da1b215e1a0cd20d417c0b3862e266a50cb1927b1ba8d97286588ff79e0dc2
[INFO] running `Command { std: "docker" "start" "-a" "92da1b215e1a0cd20d417c0b3862e266a50cb1927b1ba8d97286588ff79e0dc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92da1b215e1a0cd20d417c0b3862e266a50cb1927b1ba8d97286588ff79e0dc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92da1b215e1a0cd20d417c0b3862e266a50cb1927b1ba8d97286588ff79e0dc2", kill_on_drop: false }`
[INFO] [stdout] 92da1b215e1a0cd20d417c0b3862e266a50cb1927b1ba8d97286588ff79e0dc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73c245780076afa578c5aa0ad4b734d9c948839fe0dab2125a4d3988d590144f
[INFO] running `Command { std: "docker" "start" "-a" "73c245780076afa578c5aa0ad4b734d9c948839fe0dab2125a4d3988d590144f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.80
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling bumpalo v3.9.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.80
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking enum_derive v0.1.7
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling quote v1.0.18
[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[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/wasm-bindgen-0.2.80/src/lib.rs:11:42
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![cfg_attr(feature = "nightly", feature(unsize))]
[INFO] [stdout]    |                                          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[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` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "73c245780076afa578c5aa0ad4b734d9c948839fe0dab2125a4d3988d590144f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73c245780076afa578c5aa0ad4b734d9c948839fe0dab2125a4d3988d590144f", kill_on_drop: false }`
[INFO] [stdout] 73c245780076afa578c5aa0ad4b734d9c948839fe0dab2125a4d3988d590144f