[INFO] fetching crate lumbermill 0.1.2...
[INFO] testing lumbermill-0.1.2 against 1.69.0 for beta-1.70-1
[INFO] extracting crate lumbermill 0.1.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate lumbermill 0.1.2 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lumbermill 0.1.2
[INFO] removed 4 missing examples
[INFO] finished tweaking crates.io crate lumbermill 0.1.2
[INFO] tweaked toml for crates.io crate lumbermill 0.1.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate lumbermill 0.1.2 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b53a18b5e3924725ab80c22ad609b2850297f9abe576621af14ac1dfdfab333
[INFO] running `Command { std: "docker" "start" "-a" "8b53a18b5e3924725ab80c22ad609b2850297f9abe576621af14ac1dfdfab333", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b53a18b5e3924725ab80c22ad609b2850297f9abe576621af14ac1dfdfab333", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b53a18b5e3924725ab80c22ad609b2850297f9abe576621af14ac1dfdfab333", kill_on_drop: false }`
[INFO] [stdout] 8b53a18b5e3924725ab80c22ad609b2850297f9abe576621af14ac1dfdfab333
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14a9cf47542d0ee97073800abc25d2918a9d42c0d5c9f03c83c518c8a08492e7
[INFO] running `Command { std: "docker" "start" "-a" "14a9cf47542d0ee97073800abc25d2918a9d42c0d5c9f03c83c518c8a08492e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]    Compiling time v0.3.20
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling lumbermill v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: use of unstable library feature 'once_cell'
[INFO] [stdout]  --> src/logger.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::{path::PathBuf, sync::OnceLock};
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #74465 <https://github.com/rust-lang/rust/issues/74465> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'once_cell'
[INFO] [stdout]  --> src/logger.rs:9:20
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub static LOGGER: OnceLock<Logger> = OnceLock::new();
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #74465 <https://github.com/rust-lang/rust/issues/74465> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'once_cell'
[INFO] [stdout]  --> src/logger.rs:9:39
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub static LOGGER: OnceLock<Logger> = OnceLock::new();
[INFO] [stdout]   |                                       ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #74465 <https://github.com/rust-lang/rust/issues/74465> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'once_cell'
[INFO] [stdout]  --> src/logger.rs:9:39
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub static LOGGER: OnceLock<Logger> = OnceLock::new();
[INFO] [stdout]   |                                       ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #74465 <https://github.com/rust-lang/rust/issues/74465> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'once_cell'
[INFO] [stdout]   --> src/logger.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 |       .set(self)
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #74465 <https://github.com/rust-lang/rust/issues/74465> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lumbermill` due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "14a9cf47542d0ee97073800abc25d2918a9d42c0d5c9f03c83c518c8a08492e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14a9cf47542d0ee97073800abc25d2918a9d42c0d5c9f03c83c518c8a08492e7", kill_on_drop: false }`
[INFO] [stdout] 14a9cf47542d0ee97073800abc25d2918a9d42c0d5c9f03c83c518c8a08492e7
