[INFO] fetching crate ferretlog 0.1.3...
[INFO] checking ferretlog-0.1.3 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate ferretlog 0.1.3 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate ferretlog 0.1.3
[INFO] finished tweaking crates.io crate ferretlog 0.1.3
[INFO] tweaked toml for crates.io crate ferretlog 0.1.3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ferretlog 0.1.3 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ferretlog 0.1.3 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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c95a28316ae74f02d21b0e5ecd0112c1e514eb72afd4c1dcbf15cbe8aaa23c6f
[INFO] running `Command { std: "docker" "start" "-a" "c95a28316ae74f02d21b0e5ecd0112c1e514eb72afd4c1dcbf15cbe8aaa23c6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c95a28316ae74f02d21b0e5ecd0112c1e514eb72afd4c1dcbf15cbe8aaa23c6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c95a28316ae74f02d21b0e5ecd0112c1e514eb72afd4c1dcbf15cbe8aaa23c6f", kill_on_drop: false }`
[INFO] [stdout] c95a28316ae74f02d21b0e5ecd0112c1e514eb72afd4c1dcbf15cbe8aaa23c6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8da42d87f45a14eeb41ac0a96ec22224856fe7f8ae56472b42482154077d8da0
[INFO] running `Command { std: "docker" "start" "-a" "8da42d87f45a14eeb41ac0a96ec22224856fe7f8ae56472b42482154077d8da0", kill_on_drop: false }`
[INFO] [stderr]     Checking ferretlog v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: use of unstable library feature `test`: `bench` is a part of custom test frameworks which are unstable
[INFO] [stdout]  --> benches/log_print.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[bench]
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #50297 <https://github.com/rust-lang/rust/issues/50297> for more information
[INFO] [stdout]   = help: add `#![feature(test)]` to the crate attributes to enable
[INFO] [stdout]   = note: this compiler was built on 2025-08-13; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `test`
[INFO] [stdout]  --> benches/log_print.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #50297 <https://github.com/rust-lang/rust/issues/50297> for more information
[INFO] [stdout]   = help: add `#![feature(test)]` to the crate attributes to enable
[INFO] [stdout]   = note: this compiler was built on 2025-08-13; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `test`
[INFO] [stdout]  --> benches/log_print.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use test::Bencher;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #50297 <https://github.com/rust-lang/rust/issues/50297> for more information
[INFO] [stdout]   = help: add `#![feature(test)]` to the crate attributes to enable
[INFO] [stdout]   = note: this compiler was built on 2025-08-13; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `test`
[INFO] [stdout]  --> benches/log_print.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn bench_log_print(b: &mut Bencher) {
[INFO] [stdout]   |                            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #50297 <https://github.com/rust-lang/rust/issues/50297> for more information
[INFO] [stdout]   = help: add `#![feature(test)]` to the crate attributes to enable
[INFO] [stdout]   = note: this compiler was built on 2025-08-13; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `test`
[INFO] [stdout]  --> benches/log_print.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 |     b.iter(|| {
[INFO] [stdout]   |       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #50297 <https://github.com/rust-lang/rust/issues/50297> for more information
[INFO] [stdout]   = help: add `#![feature(test)]` to the crate attributes to enable
[INFO] [stdout]   = note: this compiler was built on 2025-08-13; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ferretlog` (bench "log_print") due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "8da42d87f45a14eeb41ac0a96ec22224856fe7f8ae56472b42482154077d8da0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8da42d87f45a14eeb41ac0a96ec22224856fe7f8ae56472b42482154077d8da0", kill_on_drop: false }`
[INFO] [stdout] 8da42d87f45a14eeb41ac0a96ec22224856fe7f8ae56472b42482154077d8da0