[INFO] fetching crate wtx-apis 0.2.1...
[INFO] checking wtx-apis-0.2.1 against 1.95.0 for pr-155915
[INFO] extracting crate wtx-apis 0.2.1 into /workspace/builds/worker-7-tc1/source
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate wtx-apis 0.2.1
[INFO] finished tweaking crates.io crate wtx-apis 0.2.1
[INFO] tweaked toml for crates.io crate wtx-apis 0.2.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate wtx-apis 0.2.1 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] crate crates.io crate wtx-apis 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded starknet-curve v0.6.0
[INFO] [stderr]   Downloaded signature v3.0.0
[INFO] [stderr]   Downloaded rfc6979 v0.5.0-rc.5
[INFO] [stderr]   Downloaded tracing-tree v0.4.1
[INFO] [stderr]   Downloaded cpubits v0.1.1
[INFO] [stderr]   Downloaded keccak v0.2.0
[INFO] [stderr]   Downloaded spki v0.8.0
[INFO] [stderr]   Downloaded rustcrypto-ff v0.14.0-rc.1
[INFO] [stderr]   Downloaded ed25519 v3.0.0-rc.5
[INFO] [stderr]   Downloaded rustcrypto-group v0.14.0-rc.1
[INFO] [stderr]   Downloaded wtx-macros v0.7.0
[INFO] [stderr]   Downloaded ecdsa v0.17.0-rc.18
[INFO] [stderr]   Downloaded pkcs8 v0.11.0
[INFO] [stderr]   Downloaded elliptic-curve v0.14.0-rc.32
[INFO] [stderr]   Downloaded starknet-types-core v0.2.4
[INFO] [stderr]   Downloaded starknet-crypto v0.8.1
[INFO] [stderr]   Downloaded ed25519-dalek v3.0.0-pre.6
[INFO] [stderr]   Downloaded sec1 v0.8.1
[INFO] [stderr]   Downloaded k256 v0.14.0-rc.9
[INFO] [stderr]   Downloaded lambdaworks-crypto v0.13.0
[INFO] [stderr]   Downloaded lambdaworks-math v0.13.0
[INFO] [stderr]   Downloaded wtx v0.45.0
[INFO] [stderr]   Downloaded sha3 v0.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] bcf594d461a7b7b8335e813e08de0522997ade8155831edc54bc1ea0875e31f2
[INFO] running `Command { std: "docker" "start" "-a" "bcf594d461a7b7b8335e813e08de0522997ade8155831edc54bc1ea0875e31f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bcf594d461a7b7b8335e813e08de0522997ade8155831edc54bc1ea0875e31f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcf594d461a7b7b8335e813e08de0522997ade8155831edc54bc1ea0875e31f2", kill_on_drop: false }`
[INFO] [stdout] bcf594d461a7b7b8335e813e08de0522997ade8155831edc54bc1ea0875e31f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] c4ba38476b2fd136cb786af9fff76ae9bd3afcf487d59c6fae7687de82791587
[INFO] running `Command { std: "docker" "start" "-a" "c4ba38476b2fd136cb786af9fff76ae9bd3afcf487d59c6fae7687de82791587", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustls v0.23.40
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking serde_json v1.0.149
[INFO] [stderr]     Checking hashbrown v0.17.0
[INFO] [stderr]     Checking rustls-pemfile v2.2.0
[INFO] [stderr]     Checking ring v0.17.14
[INFO] [stderr]    Compiling wtx-macros v0.7.0
[INFO] [stderr]    Compiling rust_decimal_macros v1.40.0
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking tokio v1.52.1
[INFO] [stderr]     Checking rustls-webpki v0.103.13
[INFO] [stderr]     Checking matchers v0.2.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.23
[INFO] [stderr]     Checking tracing-tree v0.4.1
[INFO] [stderr]     Checking tokio-rustls v0.26.4
[INFO] [stderr]     Checking wtx v0.45.0
[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/wtx-0.45.0/src/lib.rs:5:34
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![cfg_attr(feature = "nightly", feature(random, return_type_notation))]
[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 `wtx` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "c4ba38476b2fd136cb786af9fff76ae9bd3afcf487d59c6fae7687de82791587", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4ba38476b2fd136cb786af9fff76ae9bd3afcf487d59c6fae7687de82791587", kill_on_drop: false }`
[INFO] [stdout] c4ba38476b2fd136cb786af9fff76ae9bd3afcf487d59c6fae7687de82791587