[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] checking Schaeff/sparse-merkle against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSchaeff%2Fsparse-merkle" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Schaeff/sparse-merkle on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "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-4-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 08d62a18aef39969d6796e1dc54514fa4a2bc98518f0f5487bc5d4754c1f2f1d
[INFO] running `Command { std: "docker" "start" "-a" "08d62a18aef39969d6796e1dc54514fa4a2bc98518f0f5487bc5d4754c1f2f1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08d62a18aef39969d6796e1dc54514fa4a2bc98518f0f5487bc5d4754c1f2f1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08d62a18aef39969d6796e1dc54514fa4a2bc98518f0f5487bc5d4754c1f2f1d", kill_on_drop: false }`
[INFO] [stdout] 08d62a18aef39969d6796e1dc54514fa4a2bc98518f0f5487bc5d4754c1f2f1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ead4bda08ced476a3029c5f01239e68abbff314589fa2f73147dac8d9bf324d
[INFO] running `Command { std: "docker" "start" "-a" "5ead4bda08ced476a3029c5f01239e68abbff314589fa2f73147dac8d9bf324d", kill_on_drop: false }`
[INFO] [stderr]     Checking 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:289:2
[INFO] [stdout]     |
[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` (bin "sparse_merkle") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: method `check_depth` is never used
[INFO] [stdout]   --> src/main.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | impl Node {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 43 |     fn check_depth(&self, max: usize) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `with_root_and_depth` and `insert_at_0` are never used
[INFO] [stdout]    --> src/main.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 105 | impl Tree {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 106 |     fn with_root_and_depth(root: Node, depth: usize) -> Result<Self, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     fn insert_at_0(self, v: Value) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5ead4bda08ced476a3029c5f01239e68abbff314589fa2f73147dac8d9bf324d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ead4bda08ced476a3029c5f01239e68abbff314589fa2f73147dac8d9bf324d", kill_on_drop: false }`
[INFO] [stdout] 5ead4bda08ced476a3029c5f01239e68abbff314589fa2f73147dac8d9bf324d
