[INFO] fetching crate sticknodes-rs 3.0.0-alpha...
[INFO] testing sticknodes-rs-3.0.0-alpha against 1.91.0 for beta-1.92-2
[INFO] extracting crate sticknodes-rs 3.0.0-alpha into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate sticknodes-rs 3.0.0-alpha
[INFO] finished tweaking crates.io crate sticknodes-rs 3.0.0-alpha
[INFO] tweaked toml for crates.io crate sticknodes-rs 3.0.0-alpha written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sticknodes-rs 3.0.0-alpha 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] crate crates.io crate sticknodes-rs 3.0.0-alpha 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded byteorder-core2 v1.5.0-core2
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a399ea5197aa414b30f11f43fe7ef9498f9db16a903ba35ec6bb07a1488e4004
[INFO] running `Command { std: "docker" "start" "-a" "a399ea5197aa414b30f11f43fe7ef9498f9db16a903ba35ec6bb07a1488e4004", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a399ea5197aa414b30f11f43fe7ef9498f9db16a903ba35ec6bb07a1488e4004", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a399ea5197aa414b30f11f43fe7ef9498f9db16a903ba35ec6bb07a1488e4004", kill_on_drop: false }`
[INFO] [stdout] a399ea5197aa414b30f11f43fe7ef9498f9db16a903ba35ec6bb07a1488e4004
[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=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] ed06186807c94894ea06f8cd8a662fd22d55d5fb6a4a30dad84740c665170ccd
[INFO] running `Command { std: "docker" "start" "-a" "ed06186807c94894ea06f8cd8a662fd22d55d5fb6a4a30dad84740c665170ccd", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling fixedbitset v0.5.7
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling miniz_oxide v0.8.8
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling core2 v0.4.0
[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/core2-0.4.0/src/lib.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature = "nightly", feature(maybe_uninit_ref))]
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^
[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/core2-0.4.0/src/lib.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(feature = "nightly", feature(never_type))]
[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 `core2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ed06186807c94894ea06f8cd8a662fd22d55d5fb6a4a30dad84740c665170ccd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed06186807c94894ea06f8cd8a662fd22d55d5fb6a4a30dad84740c665170ccd", kill_on_drop: false }`
[INFO] [stdout] ed06186807c94894ea06f8cd8a662fd22d55d5fb6a4a30dad84740c665170ccd
