[INFO] fetching crate sluice 0.4.2...
[INFO] checking sluice-0.4.2 against try#38f08371587f97c145dedb2c055ac7b01bf1e788 for pr-65294
[INFO] extracting crate sluice 0.4.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate sluice 0.4.2 on toolchain 38f08371587f97c145dedb2c055ac7b01bf1e788
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate sluice 0.4.2
[INFO] finished tweaking crates.io crate sluice 0.4.2
[INFO] tweaked toml for crates.io crate sluice 0.4.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e2a151803d13f7797f8fd9abdcfa2c2b022b72b1d67df0aa99e0514bb54043ca
[INFO] running `"docker" "start" "-a" "e2a151803d13f7797f8fd9abdcfa2c2b022b72b1d67df0aa99e0514bb54043ca"`
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking criterion-plot v0.4.0
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking sluice v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_os v0.2.2
[INFO] [stderr]     Checking rand_xoshiro v0.3.1
[INFO] [stderr]     Checking criterion v0.3.0
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr] error[E0601]: `main` function not found in crate `pipe`
[INFO] [stderr]   --> benches/pipe.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | / #![cfg(feature = "nightly")]
[INFO] [stderr] 2  | | #![feature(async_await)]
[INFO] [stderr] 3  | |
[INFO] [stderr] 4  | | use criterion::*;
[INFO] [stderr] ...  |
[INFO] [stderr] 36 | | criterion_group!(benches, benchmark);
[INFO] [stderr] 37 | | criterion_main!(benches);
[INFO] [stderr]    | |_________________________^ consider adding a `main` function to `benches/pipe.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0601`.
[INFO] [stderr] error: could not compile `sluice`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "e2a151803d13f7797f8fd9abdcfa2c2b022b72b1d67df0aa99e0514bb54043ca"`
[INFO] running `"docker" "rm" "-f" "e2a151803d13f7797f8fd9abdcfa2c2b022b72b1d67df0aa99e0514bb54043ca"`
[INFO] [stdout] e2a151803d13f7797f8fd9abdcfa2c2b022b72b1d67df0aa99e0514bb54043ca