[INFO] cloning repository https://github.com/lazcanoluca/merkle-tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lazcanoluca/merkle-tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flazcanoluca%2Fmerkle-tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flazcanoluca%2Fmerkle-tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 69fa5f4385c61068435f9eb02bc7ee6d99ff6633
[INFO] testing lazcanoluca/merkle-tree against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flazcanoluca%2Fmerkle-tree" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lazcanoluca/merkle-tree
[INFO] finished tweaking git repo https://github.com/lazcanoluca/merkle-tree
[INFO] tweaked toml for git repo https://github.com/lazcanoluca/merkle-tree written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lazcanoluca/merkle-tree on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lazcanoluca/merkle-tree 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db32c2f12942c10c2a367513117e518569069ffb4da2da070a60c178ac8a1fed
[INFO] running `Command { std: "docker" "start" "-a" "db32c2f12942c10c2a367513117e518569069ffb4da2da070a60c178ac8a1fed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db32c2f12942c10c2a367513117e518569069ffb4da2da070a60c178ac8a1fed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db32c2f12942c10c2a367513117e518569069ffb4da2da070a60c178ac8a1fed", kill_on_drop: false }`
[INFO] [stdout] db32c2f12942c10c2a367513117e518569069ffb4da2da070a60c178ac8a1fed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 991d2d56bc6607fd21ef0be677a14d2d5090633acefdafad367355a960ed6a8d
[INFO] running `Command { std: "docker" "start" "-a" "991d2d56bc6607fd21ef0be677a14d2d5090633acefdafad367355a960ed6a8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling hmac-sha256 v1.1.7
[INFO] [stderr]    Compiling merkle-tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "991d2d56bc6607fd21ef0be677a14d2d5090633acefdafad367355a960ed6a8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "991d2d56bc6607fd21ef0be677a14d2d5090633acefdafad367355a960ed6a8d", kill_on_drop: false }`
[INFO] [stdout] 991d2d56bc6607fd21ef0be677a14d2d5090633acefdafad367355a960ed6a8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9268f89c27b2c7f241ea41b71318232a5a25710ef23591e995363bcb45375c4e
[INFO] running `Command { std: "docker" "start" "-a" "9268f89c27b2c7f241ea41b71318232a5a25710ef23591e995363bcb45375c4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling merkle-tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `Command { std: "docker" "inspect" "9268f89c27b2c7f241ea41b71318232a5a25710ef23591e995363bcb45375c4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9268f89c27b2c7f241ea41b71318232a5a25710ef23591e995363bcb45375c4e", kill_on_drop: false }`
[INFO] [stdout] 9268f89c27b2c7f241ea41b71318232a5a25710ef23591e995363bcb45375c4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 06b7ab7be02793ae4c2f0b53be6693873b7644f454884ae64325baa1ba0434bc
[INFO] running `Command { std: "docker" "start" "-a" "06b7ab7be02793ae4c2f0b53be6693873b7644f454884ae64325baa1ba0434bc", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/merkle_tree-c78420d77527c29c)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test merkle_tree::tests::test_add_an_element ... ok
[INFO] [stdout] test merkle_tree::tests::test_even_length_level_should_return_parent_level ... ok
[INFO] [stdout] test merkle_tree::tests::test_hash_not_included_returns_false ... ok
[INFO] [stdout] test merkle_tree::tests::test_build_with_no_items_returns_none ... ok
[INFO] [stdout] test merkle_tree::tests::test_merkle_root_should_return_root_hash_one_level ... ok
[INFO] [stdout] test merkle_tree::tests::test_merkle_parent_should_return_hash_of_concated_hashes ... ok
[INFO] [stdout] test merkle_tree::tests::test_merkle_root_should_return_root_hash_two_levels ... ok
[INFO] [stdout] test merkle_tree::tests::test_odd_length_level_should_return_parent_level ... ok
[INFO] [stdout] test merkle_tree::tests::test_proof_of_inclusion ... ok
[INFO] [stdout] test merkle_tree::tests::test_proof_of_inclusion_non_existant_hash ... ok
[INFO] [stdout] test merkle_tree::tests::test_validate_correct_proof ... ok
[INFO] [stdout] test merkle_tree::tests::test_build_merkle_tree ... ok
[INFO] [stdout] test merkle_tree::tests::test_hash_should_return_sha256_digest ... ok
[INFO] [stdout] test merkle_tree::tests::test_validate_wrong_proof ... ok
[INFO] [stdout] test merkle_tree::tests::test_hash_included_returns_true ... ok
[INFO] [stderr]    Doc-tests merkle_tree
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/merkle_tree.rs - merkle_tree::MerkleTree::hash (line 116) ... ok
[INFO] [stdout] test src/merkle_tree.rs - merkle_tree::MerkleTree::build (line 21) ... ok
[INFO] [stdout] test src/merkle_tree.rs - merkle_tree::MerkleTree::insert (line 43) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.42s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "06b7ab7be02793ae4c2f0b53be6693873b7644f454884ae64325baa1ba0434bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06b7ab7be02793ae4c2f0b53be6693873b7644f454884ae64325baa1ba0434bc", kill_on_drop: false }`
[INFO] [stdout] 06b7ab7be02793ae4c2f0b53be6693873b7644f454884ae64325baa1ba0434bc