[INFO] fetching crate fl2rust 0.3.2...
[INFO] checking fl2rust-0.3.2 against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] extracting crate fl2rust 0.3.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate fl2rust 0.3.2 on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fl2rust 0.3.2
[INFO] finished tweaking crates.io crate fl2rust 0.3.2
[INFO] tweaked toml for crates.io crate fl2rust 0.3.2 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate fl2rust 0.3.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ebe9668c56a1bf6a809e09cb59808c91b17464aa9a41119b7938e7ad818f5ee
[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" "8ebe9668c56a1bf6a809e09cb59808c91b17464aa9a41119b7938e7ad818f5ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ebe9668c56a1bf6a809e09cb59808c91b17464aa9a41119b7938e7ad818f5ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ebe9668c56a1bf6a809e09cb59808c91b17464aa9a41119b7938e7ad818f5ee", kill_on_drop: false }`
[INFO] [stdout] 8ebe9668c56a1bf6a809e09cb59808c91b17464aa9a41119b7938e7ad818f5ee
[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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 900684173eaf93aabfafb5f3fd84b3139d6e903775b219ac005b834d8d6e087f
[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" "900684173eaf93aabfafb5f3fd84b3139d6e903775b219ac005b834d8d6e087f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking fl2rust v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling fltk-sys v0.15.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling fltk-derive v0.15.0
[INFO] [stderr]     Checking fltk v0.15.0
[INFO] [stdout] error[E0601]: `main` function not found in crate `myuifile`
[INFO] [stdout]   --> examples/myuifile.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | / #![allow(unused_variables)]
[INFO] [stdout] 5  | | #![allow(unused_mut)]
[INFO] [stdout] 6  | | #![allow(unused_imports)]
[INFO] [stdout] 7  | |
[INFO] [stdout] ...  |
[INFO] [stdout] 94 | |     }
[INFO] [stdout] 95 | | }
[INFO] [stdout]    | |_^ consider adding a `main` function to `examples/myuifile.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 `fl2rust`
[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" "900684173eaf93aabfafb5f3fd84b3139d6e903775b219ac005b834d8d6e087f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "900684173eaf93aabfafb5f3fd84b3139d6e903775b219ac005b834d8d6e087f", kill_on_drop: false }`
[INFO] [stdout] 900684173eaf93aabfafb5f3fd84b3139d6e903775b219ac005b834d8d6e087f