[INFO] cloning repository https://github.com/Schaeff/sparse-merkle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Schaeff/sparse-merkle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSchaeff%2Fsparse-merkle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSchaeff%2Fsparse-merkle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13212aa9643dfa14bc4bfdd7ac5b5debd949bf1d
[INFO] testing Schaeff/sparse-merkle against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSchaeff%2Fsparse-merkle" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Schaeff/sparse-merkle on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Schaeff/sparse-merkle
[INFO] finished tweaking git repo https://github.com/Schaeff/sparse-merkle
[INFO] tweaked toml for git repo https://github.com/Schaeff/sparse-merkle written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate git repo https://github.com/Schaeff/sparse-merkle already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f1f1d2afbafbe26742dfbae212a71b7e1bf945d72b81878f48cd23a8ef99104
[INFO] running `Command { std: "docker" "start" "-a" "4f1f1d2afbafbe26742dfbae212a71b7e1bf945d72b81878f48cd23a8ef99104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f1f1d2afbafbe26742dfbae212a71b7e1bf945d72b81878f48cd23a8ef99104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f1f1d2afbafbe26742dfbae212a71b7e1bf945d72b81878f48cd23a8ef99104", kill_on_drop: false }`
[INFO] [stdout] 4f1f1d2afbafbe26742dfbae212a71b7e1bf945d72b81878f48cd23a8ef99104
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee3f9c363a0bf071e098a5f95f41d4a488047e79363a3c2a6eb4fdb92460791d
[INFO] running `Command { std: "docker" "start" "-a" "ee3f9c363a0bf071e098a5f95f41d4a488047e79363a3c2a6eb4fdb92460791d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling sparse_merkle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0601]: `main` function not found in crate `sparse_merkle`
[INFO] [stdout]    --> src/main.rs:1:1
[INFO] [stdout]     |
[INFO] [stdout] 1   | / type Value = usize;
[INFO] [stdout] 2   | | type Hash = usize;
[INFO] [stdout] 3   | |
[INFO] [stdout] 4   | | fn hash(left: Hash, right: Hash) -> Hash {
[INFO] [stdout] ...   |
[INFO] [stdout] 288 | |     println!("After insert of all the leaves: {:#?}", tree);
[INFO] [stdout] 289 | | }
[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 `sparse_merkle` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "ee3f9c363a0bf071e098a5f95f41d4a488047e79363a3c2a6eb4fdb92460791d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee3f9c363a0bf071e098a5f95f41d4a488047e79363a3c2a6eb4fdb92460791d", kill_on_drop: false }`
[INFO] [stdout] ee3f9c363a0bf071e098a5f95f41d4a488047e79363a3c2a6eb4fdb92460791d