[INFO] fetching crate wtx-apis 0.2.0...
[INFO] testing wtx-apis-0.2.0 against 1.95.0 for beta-1.96-2
[INFO] extracting crate wtx-apis 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate wtx-apis 0.2.0
[INFO] finished tweaking crates.io crate wtx-apis 0.2.0
[INFO] tweaked toml for crates.io crate wtx-apis 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate wtx-apis 0.2.0 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 0.2.0 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hybrid-array v0.4.8
[INFO] [stderr]   Downloaded ctutils v0.4.0
[INFO] [stderr]   Downloaded rfc6979 v0.5.0-rc.5
[INFO] [stderr]   Downloaded keccak v0.2.0
[INFO] [stderr]   Downloaded cmov v0.5.2
[INFO] [stderr]   Downloaded sha2 v0.11.0-rc.5
[INFO] [stderr]   Downloaded base16ct v1.0.0
[INFO] [stderr]   Downloaded ghash v0.6.0
[INFO] [stderr]   Downloaded sha1 v0.11.0-rc.5
[INFO] [stderr]   Downloaded signature v3.0.0-rc.10
[INFO] [stderr]   Downloaded inout v0.2.2
[INFO] [stderr]   Downloaded universal-hash v0.6.1
[INFO] [stderr]   Downloaded starknet-curve v0.6.0
[INFO] [stderr]   Downloaded ed25519 v3.0.0-rc.4
[INFO] [stderr]   Downloaded rustcrypto-group v0.14.0-rc.0
[INFO] [stderr]   Downloaded ctr v0.10.0-rc.4
[INFO] [stderr]   Downloaded ecdsa v0.17.0-rc.16
[INFO] [stderr]   Downloaded hmac v0.13.0-rc.6
[INFO] [stderr]   Downloaded elliptic-curve v0.14.0-rc.29
[INFO] [stderr]   Downloaded starknet-types-core v0.2.4
[INFO] [stderr]   Downloaded ed25519-dalek v3.0.0-pre.6
[INFO] [stderr]   Downloaded der v0.8.0
[INFO] [stderr]   Downloaded k256 v0.14.0-rc.8
[INFO] [stderr]   Downloaded aes-gcm v0.11.0-rc.3
[INFO] [stderr]   Downloaded aes v0.9.0-rc.4
[INFO] [stderr]   Downloaded spki v0.8.0-rc.4
[INFO] [stderr]   Downloaded sec1 v0.8.0
[INFO] [stderr]   Downloaded serdect v0.4.2
[INFO] [stderr]   Downloaded crypto-bigint v0.7.2
[INFO] [stderr]   Downloaded lambdaworks-crypto v0.13.0
[INFO] [stderr]   Downloaded lambdaworks-math v0.13.0
[INFO] [stderr]   Downloaded starknet-crypto v0.8.1
[INFO] [stderr]   Downloaded aead v0.6.0-rc.10
[INFO] [stderr]   Downloaded cipher v0.5.1
[INFO] [stderr]   Downloaded curve25519-dalek v5.0.0-pre.6
[INFO] [stderr]   Downloaded wtx v0.43.1
[INFO] [stderr]   Downloaded polyval v0.7.1
[INFO] [stderr]   Downloaded pkcs8 v0.11.0-rc.11
[INFO] [stderr]   Downloaded rustcrypto-ff v0.14.0-rc.0
[INFO] [stderr]   Downloaded cpubits v0.1.0
[INFO] [stderr]   Downloaded tracing-tree v0.4.1
[INFO] [stderr]   Downloaded wtx-macros v0.6.4
[INFO] [stderr]   Downloaded fiat-crypto v0.3.0
[INFO] [stderr]   Downloaded sha3 v0.11.0-rc.9
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 814a2e45f2bade1096857a10f63fce0b6f6816c75a9b7a652ad91ca6ca6d9d35
[INFO] running `Command { std: "docker" "start" "-a" "814a2e45f2bade1096857a10f63fce0b6f6816c75a9b7a652ad91ca6ca6d9d35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "814a2e45f2bade1096857a10f63fce0b6f6816c75a9b7a652ad91ca6ca6d9d35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "814a2e45f2bade1096857a10f63fce0b6f6816c75a9b7a652ad91ca6ca6d9d35", kill_on_drop: false }`
[INFO] [stdout] 814a2e45f2bade1096857a10f63fce0b6f6816c75a9b7a652ad91ca6ca6d9d35
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 927e890c23117e2a41d2a8d0cdec179b9894a2f29e29e9ed26c52507d91d2e93
[INFO] running `Command { std: "docker" "start" "-a" "927e890c23117e2a41d2a8d0cdec179b9894a2f29e29e9ed26c52507d91d2e93", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling wtx-macros v0.6.4
[INFO] [stderr]    Compiling wtx v0.43.1
[INFO] [stderr]    Compiling wtx-apis v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.84s
[INFO] running `Command { std: "docker" "inspect" "927e890c23117e2a41d2a8d0cdec179b9894a2f29e29e9ed26c52507d91d2e93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "927e890c23117e2a41d2a8d0cdec179b9894a2f29e29e9ed26c52507d91d2e93", kill_on_drop: false }`
[INFO] [stdout] 927e890c23117e2a41d2a8d0cdec179b9894a2f29e29e9ed26c52507d91d2e93
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af918ceed6392b0edacc906a40453a333bf57572b1b098b62551ba439382b9bf
[INFO] running `Command { std: "docker" "start" "-a" "af918ceed6392b0edacc906a40453a333bf57572b1b098b62551ba439382b9bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.19.0
[INFO] [stderr]    Compiling cc v1.2.57
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling rustls v0.23.37
[INFO] [stderr]    Compiling httparse v1.10.1
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling hashbrown v0.16.1
[INFO] [stderr]    Compiling rustls-pemfile v2.2.0
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling hybrid-array v0.4.8
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling block-buffer v0.12.0
[INFO] [stderr]    Compiling crypto-common v0.2.1
[INFO] [stderr]    Compiling digest v0.11.2
[INFO] [stderr]    Compiling sha1 v0.11.0-rc.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling tokio-macros v2.6.1
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling wtx-macros v0.6.4
[INFO] [stderr]    Compiling rust_decimal_macros v1.40.0
[INFO] [stderr]    Compiling tokio v1.50.0
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling tracing-subscriber v0.3.23
[INFO] [stderr]    Compiling rustls-webpki v0.103.10
[INFO] [stderr]    Compiling tracing-tree v0.4.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling tokio-rustls v0.26.4
[INFO] [stderr]    Compiling wtx v0.43.1
[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-0.43.1/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" "af918ceed6392b0edacc906a40453a333bf57572b1b098b62551ba439382b9bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af918ceed6392b0edacc906a40453a333bf57572b1b098b62551ba439382b9bf", kill_on_drop: false }`
[INFO] [stdout] af918ceed6392b0edacc906a40453a333bf57572b1b098b62551ba439382b9bf
