[INFO] fetching crate ocron 0.2.0...
[INFO] testing ocron-0.2.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate ocron 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate ocron 0.2.0
[INFO] finished tweaking crates.io crate ocron 0.2.0
[INFO] tweaked toml for crates.io crate ocron 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ocron 0.2.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ocron 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" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32b183705900817b44cf6554286a34fb5e8da95812e7046becb37dddc53c31e8
[INFO] running `Command { std: "docker" "start" "-a" "32b183705900817b44cf6554286a34fb5e8da95812e7046becb37dddc53c31e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32b183705900817b44cf6554286a34fb5e8da95812e7046becb37dddc53c31e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32b183705900817b44cf6554286a34fb5e8da95812e7046becb37dddc53c31e8", kill_on_drop: false }`
[INFO] [stdout] 32b183705900817b44cf6554286a34fb5e8da95812e7046becb37dddc53c31e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8bf9183b8f1d5575687ab1e3d79084f25a55ea3dc1e96637d3b2460dff6f4ff
[INFO] running `Command { std: "docker" "start" "-a" "e8bf9183b8f1d5575687ab1e3d79084f25a55ea3dc1e96637d3b2460dff6f4ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling ocron v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.33s
[INFO] running `Command { std: "docker" "inspect" "e8bf9183b8f1d5575687ab1e3d79084f25a55ea3dc1e96637d3b2460dff6f4ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8bf9183b8f1d5575687ab1e3d79084f25a55ea3dc1e96637d3b2460dff6f4ff", kill_on_drop: false }`
[INFO] [stdout] e8bf9183b8f1d5575687ab1e3d79084f25a55ea3dc1e96637d3b2460dff6f4ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d457c9d9c4e43b7aeeba07632006bcece3fe86906857de5347f68f2331acc9a8
[INFO] running `Command { std: "docker" "start" "-a" "d457c9d9c4e43b7aeeba07632006bcece3fe86906857de5347f68f2331acc9a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling ocron v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(test, feature(test))]
[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 `ocron` (bin "ocron" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "d457c9d9c4e43b7aeeba07632006bcece3fe86906857de5347f68f2331acc9a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d457c9d9c4e43b7aeeba07632006bcece3fe86906857de5347f68f2331acc9a8", kill_on_drop: false }`
[INFO] [stdout] d457c9d9c4e43b7aeeba07632006bcece3fe86906857de5347f68f2331acc9a8