[INFO] fetching crate merkletree-rs 0.0.3...
[INFO] testing merkletree-rs-0.0.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate merkletree-rs 0.0.3 into /workspace/builds/worker-110/source
[INFO] validating manifest of crates.io crate merkletree-rs 0.0.3 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate merkletree-rs 0.0.3
[INFO] finished tweaking crates.io crate merkletree-rs 0.0.3
[INFO] tweaked toml for crates.io crate merkletree-rs 0.0.3 written to /workspace/builds/worker-110/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 545d7c6a3a1aaf73c104a188b03684a505162d468428bbc85c173fea702927d8
[INFO] running `Command { std: "docker" "start" "-a" "545d7c6a3a1aaf73c104a188b03684a505162d468428bbc85c173fea702927d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "545d7c6a3a1aaf73c104a188b03684a505162d468428bbc85c173fea702927d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "545d7c6a3a1aaf73c104a188b03684a505162d468428bbc85c173fea702927d8", kill_on_drop: false }`
[INFO] [stdout] 545d7c6a3a1aaf73c104a188b03684a505162d468428bbc85c173fea702927d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e70955980c17f6023b29cbd6b264b2abd70248029ea444f2ce6ef72409a30c8
[INFO] running `Command { std: "docker" "start" "-a" "9e70955980c17f6023b29cbd6b264b2abd70248029ea444f2ce6ef72409a30c8", 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] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling integer-encoding v1.1.7
[INFO] [stderr]    Compiling rustc-hex v1.0.0
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling snap v0.2.5
[INFO] [stderr]    Compiling errno v0.2.7
[INFO] [stderr]    Compiling bitreader v0.3.4
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling tiny-keccak v1.5.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rusty-leveldb v0.2.7
[INFO] [stderr]    Compiling merkletree-rs v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.56s
[INFO] running `Command { std: "docker" "inspect" "9e70955980c17f6023b29cbd6b264b2abd70248029ea444f2ce6ef72409a30c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e70955980c17f6023b29cbd6b264b2abd70248029ea444f2ce6ef72409a30c8", kill_on_drop: false }`
[INFO] [stdout] 9e70955980c17f6023b29cbd6b264b2abd70248029ea444f2ce6ef72409a30c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe2c5f4e3b1797461c1716c03bfd5120556cc27815045445fce2aa7781e9d878
[INFO] running `Command { std: "docker" "start" "-a" "fe2c5f4e3b1797461c1716c03bfd5120556cc27815045445fce2aa7781e9d878", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling merkletree-rs v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.63s
[INFO] running `Command { std: "docker" "inspect" "fe2c5f4e3b1797461c1716c03bfd5120556cc27815045445fce2aa7781e9d878", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe2c5f4e3b1797461c1716c03bfd5120556cc27815045445fce2aa7781e9d878", kill_on_drop: false }`
[INFO] [stdout] fe2c5f4e3b1797461c1716c03bfd5120556cc27815045445fce2aa7781e9d878
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] df7e396ffdaa69349cff642cf6eb3b4686d777f77b6d3b32ef2cbb49b32aeaed
[INFO] running `Command { std: "docker" "start" "-a" "df7e396ffdaa69349cff642cf6eb3b4686d777f77b6d3b32ef2cbb49b32aeaed", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stdout] running 14 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/merkletree_rs-8ba7f06e986c0087)
[INFO] [stdout] test node::tests::test_hash_vec ... ok
[INFO] [stdout] test tests::test_harcoded_proofs_of_empty_leaf ... ok
[INFO] [stdout] test tests::test_generate_proof_empty_leaf_and_verify_proof ... ok
[INFO] [stdout] test tests::test_hash_vec ... ok
[INFO] [stdout] test tests::test_add ... ok
[INFO] [stdout] test tests::test_new_mt ... ok
[INFO] [stdout] test tests::test_tree_node ... ok
[INFO] [stdout] test utils::tests::test_hash_vec ... ok
[INFO] [stdout] test tests::test_harcoded_proofs_of_existing_leaf ... ok
[INFO] [stdout] test tests::test_generate_proof_and_verify_proof ... ok
[INFO] [stdout] test tests::test_add_2 ... ok
[INFO] [stdout] test tests::test_get_root_in_db ... ok
[INFO] [stdout] test tests::test_add_leafs_different_order ... ok
[INFO] [stdout] test tests::test_add_1000_leafs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 6.69s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests merkletree-rs
[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" "df7e396ffdaa69349cff642cf6eb3b4686d777f77b6d3b32ef2cbb49b32aeaed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df7e396ffdaa69349cff642cf6eb3b4686d777f77b6d3b32ef2cbb49b32aeaed", kill_on_drop: false }`
[INFO] [stdout] df7e396ffdaa69349cff642cf6eb3b4686d777f77b6d3b32ef2cbb49b32aeaed