[INFO] fetching crate word-segmenters 0.3.2...
[INFO] checking word-segmenters-0.3.2 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate word-segmenters 0.3.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate word-segmenters 0.3.2 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate word-segmenters 0.3.2
[INFO] finished tweaking crates.io crate word-segmenters 0.3.2
[INFO] tweaked toml for crates.io crate word-segmenters 0.3.2 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b7f6385babd59391908758e4ed73b2b455f3eb02d332f53cfae699e21fb6688
[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" "2b7f6385babd59391908758e4ed73b2b455f3eb02d332f53cfae699e21fb6688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b7f6385babd59391908758e4ed73b2b455f3eb02d332f53cfae699e21fb6688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b7f6385babd59391908758e4ed73b2b455f3eb02d332f53cfae699e21fb6688", kill_on_drop: false }`
[INFO] [stdout] 2b7f6385babd59391908758e4ed73b2b455f3eb02d332f53cfae699e21fb6688
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57c6341b736083204adbfcc7ccb6a78c91265bbbf53dcba940b1d24613080b75
[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" "57c6341b736083204adbfcc7ccb6a78c91265bbbf53dcba940b1d24613080b75", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking bencher v0.1.5
[INFO] [stderr]     Checking smartstring v0.2.8
[INFO] [stderr]    Compiling ahash v0.6.3
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking word-segmenters v0.3.2 (/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 `word-segmenters` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "57c6341b736083204adbfcc7ccb6a78c91265bbbf53dcba940b1d24613080b75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57c6341b736083204adbfcc7ccb6a78c91265bbbf53dcba940b1d24613080b75", kill_on_drop: false }`
[INFO] [stdout] 57c6341b736083204adbfcc7ccb6a78c91265bbbf53dcba940b1d24613080b75