[INFO] fetching crate fast_log 1.7.8...
[INFO] checking fast_log-1.7.8 against 1.95.0 for pr-155915
[INFO] extracting crate fast_log 1.7.8 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate fast_log 1.7.8
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate fast_log 1.7.8
[INFO] tweaked toml for crates.io crate fast_log 1.7.8 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fast_log 1.7.8 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 fast_log 1.7.8 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 dark-std v0.2.16
[INFO] [stderr]   Downloaded fastdate v0.3.36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ceb93f55190631ea762b4ee55c346b051ac5362bb3786822fc093489d90a1f99
[INFO] running `Command { std: "docker" "start" "-a" "ceb93f55190631ea762b4ee55c346b051ac5362bb3786822fc093489d90a1f99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ceb93f55190631ea762b4ee55c346b051ac5362bb3786822fc093489d90a1f99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ceb93f55190631ea762b4ee55c346b051ac5362bb3786822fc093489d90a1f99", kill_on_drop: false }`
[INFO] [stdout] ceb93f55190631ea762b4ee55c346b051ac5362bb3786822fc093489d90a1f99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ebcf245ff5b6456a9ad5f168e5ce76eb56b828ef95fd9154ee50e76dd2ec6cc9
[INFO] running `Command { std: "docker" "start" "-a" "ebcf245ff5b6456a9ad5f168e5ce76eb56b828ef95fd9154ee50e76dd2ec6cc9", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core v0.3.32
[INFO] [stderr]     Checking deranged v0.5.8
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking indexmap v2.14.0
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking crossbeam-queue v0.3.12
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking flume v0.11.1
[INFO] [stderr]     Checking dark-std v0.2.16
[INFO] [stderr]     Checking time v0.3.47
[INFO] [stderr]     Checking fastdate v0.3.36
[INFO] [stderr]     Checking fast_log v1.7.8 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/log_file.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `bench_black_box` has been stable since 1.66.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> benches/log_file.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(bench_black_box)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fast_log` (bench "log_file") due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/log.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `bench_black_box` has been stable since 1.66.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> benches/log.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(bench_black_box)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fast_log` (bench "log") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "ebcf245ff5b6456a9ad5f168e5ce76eb56b828ef95fd9154ee50e76dd2ec6cc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebcf245ff5b6456a9ad5f168e5ce76eb56b828ef95fd9154ee50e76dd2ec6cc9", kill_on_drop: false }`
[INFO] [stdout] ebcf245ff5b6456a9ad5f168e5ce76eb56b828ef95fd9154ee50e76dd2ec6cc9
