[INFO] fetching crate instant-segment 0.3.1...
[INFO] checking instant-segment-0.3.1 against try#575650af7d7ca88602df28e39d27bf3e456c306e for pr-80579
[INFO] extracting crate instant-segment 0.3.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate instant-segment 0.3.1 on toolchain 575650af7d7ca88602df28e39d27bf3e456c306e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate instant-segment 0.3.1
[INFO] finished tweaking crates.io crate instant-segment 0.3.1
[INFO] tweaked toml for crates.io crate instant-segment 0.3.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded getrandom v0.2.0
[INFO] [stderr]   Downloaded smartstring v0.2.6
[INFO] [stderr]   Downloaded bencher v0.1.5
[INFO] [stderr]   Downloaded ahash v0.6.2
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4261766f31cb7fde43b64c2e9e819e5d5734f4a40f120b4f2e5aedbc1e1f2df1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4261766f31cb7fde43b64c2e9e819e5d5734f4a40f120b4f2e5aedbc1e1f2df1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4261766f31cb7fde43b64c2e9e819e5d5734f4a40f120b4f2e5aedbc1e1f2df1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4261766f31cb7fde43b64c2e9e819e5d5734f4a40f120b4f2e5aedbc1e1f2df1", kill_on_drop: false }`
[INFO] [stdout] 4261766f31cb7fde43b64c2e9e819e5d5734f4a40f120b4f2e5aedbc1e1f2df1
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85a3a83cdb1a509c23baea5f9238649749268943560f260678a77cf8b185f15a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "85a3a83cdb1a509c23baea5f9238649749268943560f260678a77cf8b185f15a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking smartstring v0.2.6
[INFO] [stderr]    Compiling ahash v0.6.2
[INFO] [stderr]     Checking getrandom v0.2.0
[INFO] [stderr]     Checking instant-segment v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0601]: `main` function not found in crate `bench`
[INFO] [stdout]   --> benches/bench.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / #![cfg(feature = "__test_data")]
[INFO] [stdout] 2  | |
[INFO] [stdout] 3  | | use bencher::{benchmark_group, benchmark_main, Bencher};
[INFO] [stdout] 4  | |
[INFO] [stdout] ...  |
[INFO] [stdout] 11 | |     bench.iter(|| segmenter.segment("thisisatest", &mut out));
[INFO] [stdout] 12 | | }
[INFO] [stdout]    | |_^ consider adding a `main` function to `benches/bench.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `instant-segment`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "85a3a83cdb1a509c23baea5f9238649749268943560f260678a77cf8b185f15a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85a3a83cdb1a509c23baea5f9238649749268943560f260678a77cf8b185f15a", kill_on_drop: false }`
[INFO] [stdout] 85a3a83cdb1a509c23baea5f9238649749268943560f260678a77cf8b185f15a