[INFO] cloning repository https://github.com/Yuvraj-cyborg/Merkle-Tree-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Yuvraj-cyborg/Merkle-Tree-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYuvraj-cyborg%2FMerkle-Tree-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYuvraj-cyborg%2FMerkle-Tree-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e2c108c106a9b70eaf268e30df74f4e700df0e4b
[INFO] testing Yuvraj-cyborg/Merkle-Tree-rust against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYuvraj-cyborg%2FMerkle-Tree-rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Yuvraj-cyborg/Merkle-Tree-rust
[INFO] finished tweaking git repo https://github.com/Yuvraj-cyborg/Merkle-Tree-rust
[INFO] tweaked toml for git repo https://github.com/Yuvraj-cyborg/Merkle-Tree-rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Yuvraj-cyborg/Merkle-Tree-rust on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Yuvraj-cyborg/Merkle-Tree-rust 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bc88c02a464a37af86e7a1c0c09cb70d4cf6161a9ade1e8bc4b1718115145da
[INFO] running `Command { std: "docker" "start" "-a" "2bc88c02a464a37af86e7a1c0c09cb70d4cf6161a9ade1e8bc4b1718115145da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bc88c02a464a37af86e7a1c0c09cb70d4cf6161a9ade1e8bc4b1718115145da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bc88c02a464a37af86e7a1c0c09cb70d4cf6161a9ade1e8bc4b1718115145da", kill_on_drop: false }`
[INFO] [stdout] 2bc88c02a464a37af86e7a1c0c09cb70d4cf6161a9ade1e8bc4b1718115145da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43636fc26662d46598f1e426f8e7dfd0c679aea7faae2c9791ab21c0f036c1f2
[INFO] running `Command { std: "docker" "start" "-a" "43636fc26662d46598f1e426f8e7dfd0c679aea7faae2c9791ab21c0f036c1f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling rust-prac v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `leaves` is never read
[INFO] [stdout]  --> src/merkle_tree.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct MerkleTree {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 6 |     root: Option<MerkleNode>,
[INFO] [stdout] 7 |     leaves: Vec<MerkleNode>
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `MerkleTree` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "43636fc26662d46598f1e426f8e7dfd0c679aea7faae2c9791ab21c0f036c1f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43636fc26662d46598f1e426f8e7dfd0c679aea7faae2c9791ab21c0f036c1f2", kill_on_drop: false }`
[INFO] [stdout] 43636fc26662d46598f1e426f8e7dfd0c679aea7faae2c9791ab21c0f036c1f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aad8c02b037e35c128d60159614f902090809be5fff29ff2901ffeb66777b6df
[INFO] running `Command { std: "docker" "start" "-a" "aad8c02b037e35c128d60159614f902090809be5fff29ff2901ffeb66777b6df", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-prac v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `leaves` is never read
[INFO] [stdout]  --> src/merkle_tree.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct MerkleTree {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 6 |     root: Option<MerkleNode>,
[INFO] [stdout] 7 |     leaves: Vec<MerkleNode>
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `MerkleTree` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "aad8c02b037e35c128d60159614f902090809be5fff29ff2901ffeb66777b6df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aad8c02b037e35c128d60159614f902090809be5fff29ff2901ffeb66777b6df", kill_on_drop: false }`
[INFO] [stdout] aad8c02b037e35c128d60159614f902090809be5fff29ff2901ffeb66777b6df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3589728b88e55d7ff22778c7e1f95306c6e521b0c602aa556e743efeac445ea2
[INFO] running `Command { std: "docker" "start" "-a" "3589728b88e55d7ff22778c7e1f95306c6e521b0c602aa556e743efeac445ea2", kill_on_drop: false }`
[INFO] [stderr] warning: field `leaves` is never read
[INFO] [stderr]  --> src/merkle_tree.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct MerkleTree {
[INFO] [stderr]   |            ---------- field in this struct
[INFO] [stderr] 6 |     root: Option<MerkleNode>,
[INFO] [stderr] 7 |     leaves: Vec<MerkleNode>
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `MerkleTree` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-prac` (bin "rust-prac" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_prac-3f0c45703dbe62a3)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3589728b88e55d7ff22778c7e1f95306c6e521b0c602aa556e743efeac445ea2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3589728b88e55d7ff22778c7e1f95306c6e521b0c602aa556e743efeac445ea2", kill_on_drop: false }`
[INFO] [stdout] 3589728b88e55d7ff22778c7e1f95306c6e521b0c602aa556e743efeac445ea2