[INFO] fetching crate yowsl 0.1.3...
[INFO] checking yowsl-0.1.3 against try#ff044a3d65d25a17c3e14c1530004e1540179ba7 for pr-78338
[INFO] extracting crate yowsl 0.1.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate yowsl 0.1.3 on toolchain ff044a3d65d25a17c3e14c1530004e1540179ba7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yowsl 0.1.3
[INFO] finished tweaking crates.io crate yowsl 0.1.3
[INFO] tweaked toml for crates.io crate yowsl 0.1.3 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libloading v0.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0d10b8480d12aaf6f24a5b64f85b7d437086108eeebace4d623eb0ccbe5e965
[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" "d0d10b8480d12aaf6f24a5b64f85b7d437086108eeebace4d623eb0ccbe5e965", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0d10b8480d12aaf6f24a5b64f85b7d437086108eeebace4d623eb0ccbe5e965", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0d10b8480d12aaf6f24a5b64f85b7d437086108eeebace4d623eb0ccbe5e965", kill_on_drop: false }`
[INFO] [stdout] d0d10b8480d12aaf6f24a5b64f85b7d437086108eeebace4d623eb0ccbe5e965
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a630af69bcfb721199cc7d121cf48d011f2c2f8338dbfe2f1fb21834c10a71aa
[INFO] running `Command { std: "docker" "start" "-a" "a630af69bcfb721199cc7d121cf48d011f2c2f8338dbfe2f1fb21834c10a71aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking backtrace v0.3.53
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking yowsl v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0601]: `main` function not found in crate `yowsl`
[INFO] [stdout]    --> src/bin/yowsl/main.rs:1:1
[INFO] [stdout]     |
[INFO] [stdout] 1   | / #![cfg(all(target_arch = "x86_64", target_os = "windows"))]
[INFO] [stdout] 2   | |
[INFO] [stdout] 3   | | #[macro_use]
[INFO] [stdout] 4   | | extern crate clap;
[INFO] [stdout] ...   |
[INFO] [stdout] 125 | |     run();
[INFO] [stdout] 126 | | }
[INFO] [stdout]     | |_^ consider adding a `main` function to `src/bin/yowsl/main.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 `yowsl`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "a630af69bcfb721199cc7d121cf48d011f2c2f8338dbfe2f1fb21834c10a71aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a630af69bcfb721199cc7d121cf48d011f2c2f8338dbfe2f1fb21834c10a71aa", kill_on_drop: false }`
[INFO] [stdout] a630af69bcfb721199cc7d121cf48d011f2c2f8338dbfe2f1fb21834c10a71aa