[INFO] fetching crate sparse-merkle-tree 0.3.1-pre...
[INFO] testing sparse-merkle-tree-0.3.1-pre against 1.49.0 for beta-1.50-1
[INFO] extracting crate sparse-merkle-tree 0.3.1-pre into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate sparse-merkle-tree 0.3.1-pre on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sparse-merkle-tree 0.3.1-pre
[INFO] finished tweaking crates.io crate sparse-merkle-tree 0.3.1-pre
[INFO] tweaked toml for crates.io crate sparse-merkle-tree 0.3.1-pre written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87ed37de0149b91056aed885bae14c9a0e2c73fce0a9239a57c86afa18e43260
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "87ed37de0149b91056aed885bae14c9a0e2c73fce0a9239a57c86afa18e43260", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87ed37de0149b91056aed885bae14c9a0e2c73fce0a9239a57c86afa18e43260", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87ed37de0149b91056aed885bae14c9a0e2c73fce0a9239a57c86afa18e43260", kill_on_drop: false }`
[INFO] [stdout] 87ed37de0149b91056aed885bae14c9a0e2c73fce0a9239a57c86afa18e43260
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b93aa67f712b4bad658cd8294e8092435c809cea658cdeb0edee0da55f4a457e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b93aa67f712b4bad658cd8294e8092435c809cea658cdeb0edee0da55f4a457e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling blake2b-rs v0.1.5
[INFO] [stderr]    Compiling sparse-merkle-tree v0.3.1-pre (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.51s
[INFO] running `Command { std: "docker" "inspect" "b93aa67f712b4bad658cd8294e8092435c809cea658cdeb0edee0da55f4a457e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b93aa67f712b4bad658cd8294e8092435c809cea658cdeb0edee0da55f4a457e", kill_on_drop: false }`
[INFO] [stdout] b93aa67f712b4bad658cd8294e8092435c809cea658cdeb0edee0da55f4a457e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3aac22c70f49cd691fc72f27ab0269b869cbf7e47d2dd7ef5456a23d080160e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a3aac22c70f49cd691fc72f27ab0269b869cbf7e47d2dd7ef5456a23d080160e", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tinytemplate v1.2.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling rusty-fork v0.2.2
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling proptest v0.9.6
[INFO] [stderr]    Compiling sparse-merkle-tree v0.3.1-pre (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 39.85s
[INFO] running `Command { std: "docker" "inspect" "a3aac22c70f49cd691fc72f27ab0269b869cbf7e47d2dd7ef5456a23d080160e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3aac22c70f49cd691fc72f27ab0269b869cbf7e47d2dd7ef5456a23d080160e", kill_on_drop: false }`
[INFO] [stdout] a3aac22c70f49cd691fc72f27ab0269b869cbf7e47d2dd7ef5456a23d080160e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cf619c52ba8c20ca11412aa0182b17db7205138c9ad269ecad7747ca68d2501c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cf619c52ba8c20ca11412aa0182b17db7205138c9ad269ecad7747ca68d2501c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sparse_merkle_tree-8ddf545e3f45786a
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test tests::test_default_tree ... ok
[INFO] [stdout] test tests::test_delete_a_leaf ... ok
[INFO] [stdout] test tests::test_merkle_root ... ok
[INFO] [stdout] test tests::test_h256_copy_bits ... ok
[INFO] [stdout] test tests::test_h256 ... ok
[INFO] [stdout] test tests::test_default_merkle_proof ... ok
[INFO] [stdout] test tests::test_random_update ... ok
[INFO] [stdout] test tests::test_default_root ... ok
[INFO] [stdout] test tests::test_random_construct ... ok
[INFO] [stdout] test tests::test_zero_value_donot_change_root ... ok
[INFO] [stdout] test tests::test_random_merkle_proof ... ok
[INFO] [stdout] test tests::test_v0_2_broken_sample ... ok
[INFO] [stdout] test tests::test_zero_value_donot_change_store ... ok
[INFO] [stdout] test tests::test_random_update_tree_store ... ok
[INFO] [stdout] test tests::test_v0_3_broken_sample ... ok
[INFO] [stdout] test tests::test_smt_update_with_zero_values ... ok
[INFO] [stdout] test tests::test_update_smt_tree_store ... ok
[INFO] [stdout] test tests::test_smt_non_exists_leaves ... ok
[INFO] [stdout] test tests::test_smt_non_exists_leaves_mix ... ok
[INFO] [stdout] test tests::test_smt_multi_leaves_small ... ok
[INFO] [stdout] test tests::test_smt_random_insert_order ... ok
[INFO] [stdout] test tests::test_smt_single_leaf_small ... ok
[INFO] [stdout] test tests::test_smt_multi_leaves_large ... ok
[INFO] [stderr]    Doc-tests sparse-merkle-tree
[INFO] [stdout] test tests::test_smt_single_leaf_large ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cf619c52ba8c20ca11412aa0182b17db7205138c9ad269ecad7747ca68d2501c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf619c52ba8c20ca11412aa0182b17db7205138c9ad269ecad7747ca68d2501c", kill_on_drop: false }`
[INFO] [stdout] cf619c52ba8c20ca11412aa0182b17db7205138c9ad269ecad7747ca68d2501c