[INFO] fetching crate leptos-signals 0.0.3...
[INFO] checking leptos-signals-0.0.3 against 1.95.0 for pr-155915
[INFO] extracting crate leptos-signals 0.0.3 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate leptos-signals 0.0.3
[INFO] finished tweaking crates.io crate leptos-signals 0.0.3
[INFO] tweaked toml for crates.io crate leptos-signals 0.0.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate leptos-signals 0.0.3 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 44 packages to latest compatible versions
[INFO] [stderr]       Adding leptos_reactive v0.1.3 (available: v0.6.15)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded leptos_reactive v0.1.3
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd44dd96abdc0acb38dba55ad6e078084f9b88e4ecbc147f5715a198b9c1ee7e
[INFO] running `Command { std: "docker" "start" "-a" "fd44dd96abdc0acb38dba55ad6e078084f9b88e4ecbc147f5715a198b9c1ee7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd44dd96abdc0acb38dba55ad6e078084f9b88e4ecbc147f5715a198b9c1ee7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd44dd96abdc0acb38dba55ad6e078084f9b88e4ecbc147f5715a198b9c1ee7e", kill_on_drop: false }`
[INFO] [stdout] fd44dd96abdc0acb38dba55ad6e078084f9b88e4ecbc147f5715a198b9c1ee7e
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06737380cc0a7e2549ee34ca884419e5522c5bd7399195cb5dbeaf5f201705ca
[INFO] running `Command { std: "docker" "start" "-a" "06737380cc0a7e2549ee34ca884419e5522c5bd7399195cb5dbeaf5f201705ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.121
[INFO] [stderr]    Compiling bumpalo v3.20.2
[INFO] [stderr]    Compiling wasm-bindgen v0.2.121
[INFO] [stderr]    Compiling slotmap v1.1.1
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.121
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.121
[INFO] [stderr]     Checking js-sys v0.3.98
[INFO] [stderr]     Checking serde-wasm-bindgen v0.4.5
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.71
[INFO] [stderr]     Checking web-sys v0.3.98
[INFO] [stderr]     Checking leptos_reactive v0.1.3
[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/leptos_reactive-0.1.3/src/lib.rs:2:38
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(not(feature = "stable"), feature(fn_traits))]
[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 `leptos_reactive` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "06737380cc0a7e2549ee34ca884419e5522c5bd7399195cb5dbeaf5f201705ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06737380cc0a7e2549ee34ca884419e5522c5bd7399195cb5dbeaf5f201705ca", kill_on_drop: false }`
[INFO] [stdout] 06737380cc0a7e2549ee34ca884419e5522c5bd7399195cb5dbeaf5f201705ca
