[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] testing danielemegna/RustFizzBuzz against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielemegna%2FRustFizzBuzz" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/danielemegna/RustFizzBuzz on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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-7/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded im-rc v13.0.0
[INFO] [stderr]   Downloaded sized-chunks v0.3.0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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] 1c9549e9e9b1fd8d0882b5e4f1501c6f2143e90f54df51592e45bfd4e58eee22
[INFO] running `Command { std: "docker" "start" "-a" "1c9549e9e9b1fd8d0882b5e4f1501c6f2143e90f54df51592e45bfd4e58eee22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c9549e9e9b1fd8d0882b5e4f1501c6f2143e90f54df51592e45bfd4e58eee22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c9549e9e9b1fd8d0882b5e4f1501c6f2143e90f54df51592e45bfd4e58eee22", kill_on_drop: false }`
[INFO] [stdout] 1c9549e9e9b1fd8d0882b5e4f1501c6f2143e90f54df51592e45bfd4e58eee22
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0e0cf79361d2c25f20f1543b5111535d323fb743eb5aae9589f94e496090eca
[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" "c0e0cf79361d2c25f20f1543b5111535d323fb743eb5aae9589f94e496090eca", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling im-rc v13.0.0
[INFO] [stderr]    Compiling sized-chunks v0.3.0
[INFO] [stderr]    Compiling 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] running `Command { std: "docker" "inspect" "c0e0cf79361d2c25f20f1543b5111535d323fb743eb5aae9589f94e496090eca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0e0cf79361d2c25f20f1543b5111535d323fb743eb5aae9589f94e496090eca", kill_on_drop: false }`
[INFO] [stdout] c0e0cf79361d2c25f20f1543b5111535d323fb743eb5aae9589f94e496090eca