[INFO] cloning repository https://github.com/danielemegna/RustFizzBuzz
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/danielemegna/RustFizzBuzz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielemegna%2FRustFizzBuzz", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielemegna%2FRustFizzBuzz'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9002d72cbc12c64083a95a8c095bca7c4e46dbda
[INFO] checking danielemegna/RustFizzBuzz against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielemegna%2FRustFizzBuzz" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/danielemegna/RustFizzBuzz on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/danielemegna/RustFizzBuzz
[INFO] finished tweaking git repo https://github.com/danielemegna/RustFizzBuzz
[INFO] tweaked toml for git repo https://github.com/danielemegna/RustFizzBuzz written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/danielemegna/RustFizzBuzz already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sized-chunks v0.3.0
[INFO] [stderr]   Downloaded im-rc v13.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", 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] e4adea11acf619ac154c28e4da3f091686e649da45c9568e59ae35e22bf7645d
[INFO] running `Command { std: "docker" "start" "-a" "e4adea11acf619ac154c28e4da3f091686e649da45c9568e59ae35e22bf7645d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4adea11acf619ac154c28e4da3f091686e649da45c9568e59ae35e22bf7645d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4adea11acf619ac154c28e4da3f091686e649da45c9568e59ae35e22bf7645d", kill_on_drop: false }`
[INFO] [stdout] e4adea11acf619ac154c28e4da3f091686e649da45c9568e59ae35e22bf7645d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "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] a99429de23f162fb29421bd2b46dd28d58843302df9ff437baf7ba506c28e10a
[INFO] running `Command { std: "docker" "start" "-a" "a99429de23f162fb29421bd2b46dd28d58843302df9ff437baf7ba506c28e10a", kill_on_drop: false }`
[INFO] [stderr]    Compiling im-rc v13.0.0
[INFO] [stderr]     Checking sized-chunks v0.3.0
[INFO] [stderr]     Checking app v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0601]: `main` function not found in crate `app`
[INFO] [stdout]   --> src/main.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / use im_rc::ordmap;
[INFO] [stdout] 2  | |
[INFO] [stdout] 3  | | fn fizz_buzz(i: i32) -> String {
[INFO] [stdout] 4  | |     let dictionary = ordmap!{
[INFO] [stdout] ...  |
[INFO] [stdout] 68 | |     }
[INFO] [stdout] 69 | | }
[INFO] [stdout]    | |_^ consider adding a `main` function to `src/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 `app`
[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" "a99429de23f162fb29421bd2b46dd28d58843302df9ff437baf7ba506c28e10a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a99429de23f162fb29421bd2b46dd28d58843302df9ff437baf7ba506c28e10a", kill_on_drop: false }`
[INFO] [stdout] a99429de23f162fb29421bd2b46dd28d58843302df9ff437baf7ba506c28e10a