[INFO] crate tree_hash 0.1.0 is already in cache
[INFO] testing tree_hash-0.1.0 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate tree_hash 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate tree_hash 0.1.0 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tree_hash 0.1.0
[INFO] finished tweaking crates.io crate tree_hash 0.1.0
[INFO] tweaked toml for crates.io crate tree_hash 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 083554abaa54f9756cb3e05dd02e3251f4babfae1574466d0c62f867b4ee147e
[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" "083554abaa54f9756cb3e05dd02e3251f4babfae1574466d0c62f867b4ee147e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "083554abaa54f9756cb3e05dd02e3251f4babfae1574466d0c62f867b4ee147e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "083554abaa54f9756cb3e05dd02e3251f4babfae1574466d0c62f867b4ee147e", kill_on_drop: false }`
[INFO] [stdout] 083554abaa54f9756cb3e05dd02e3251f4babfae1574466d0c62f867b4ee147e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f4e0c32f0c1ffc41b15efb7e9100ff168a26c493313d599f053806a6242cd37
[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" "5f4e0c32f0c1ffc41b15efb7e9100ff168a26c493313d599f053806a6242cd37", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling static_assertions v0.2.5
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]    Compiling lazy_static v0.1.16
[INFO] [stderr]    Compiling rlp v0.4.5
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling impl-rlp v0.2.1
[INFO] [stderr]    Compiling tiny-keccak v1.5.0
[INFO] [stderr]    Compiling uint v0.5.0
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]    Compiling fixed-hash v0.3.2
[INFO] [stderr]    Compiling eth2_hashing v0.1.0
[INFO] [stderr]    Compiling impl-serde v0.2.3
[INFO] [stderr]    Compiling ethereum-types-serialize v0.2.2
[INFO] [stderr]    Compiling ethbloom v0.6.4
[INFO] [stderr]    Compiling ethereum-types v0.5.2
[INFO] [stderr]    Compiling tree_hash v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/merkleize_padded.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / lazy_static! {
[INFO] [stdout] 12 | |     /// Cached zero hashes where `ZERO_HASHES[i]` is the hash of a Merkle tree with 2^i zero leaves.
[INFO] [stdout] 13 | |     static ref ZERO_HASHES: Vec<Vec<u8>> = {
[INFO] [stdout] 14 | |         let mut hashes = vec![vec![0; 32]; MAX_TREE_DEPTH + 1];
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | |     };
[INFO] [stdout] 22 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/merkleize_padded.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / lazy_static! {
[INFO] [stdout] 12 | |     /// Cached zero hashes where `ZERO_HASHES[i]` is the hash of a Merkle tree with 2^i zero leaves.
[INFO] [stdout] 13 | |     static ref ZERO_HASHES: Vec<Vec<u8>> = {
[INFO] [stdout] 14 | |         let mut hashes = vec![vec![0; 32]; MAX_TREE_DEPTH + 1];
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | |     };
[INFO] [stdout] 22 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.66s
[INFO] running `Command { std: "docker" "inspect" "5f4e0c32f0c1ffc41b15efb7e9100ff168a26c493313d599f053806a6242cd37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f4e0c32f0c1ffc41b15efb7e9100ff168a26c493313d599f053806a6242cd37", kill_on_drop: false }`
[INFO] [stdout] 5f4e0c32f0c1ffc41b15efb7e9100ff168a26c493313d599f053806a6242cd37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 452643ac6dec811208e0f6282e48ece8446bc18da036bf57889dd0b08babd9e6
[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" "452643ac6dec811208e0f6282e48ece8446bc18da036bf57889dd0b08babd9e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/merkleize_padded.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / lazy_static! {
[INFO] [stdout] 12 | |     /// Cached zero hashes where `ZERO_HASHES[i]` is the hash of a Merkle tree with 2^i zero leaves.
[INFO] [stdout] 13 | |     static ref ZERO_HASHES: Vec<Vec<u8>> = {
[INFO] [stdout] 14 | |         let mut hashes = vec![vec![0; 32]; MAX_TREE_DEPTH + 1];
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | |     };
[INFO] [stdout] 22 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/merkleize_padded.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / lazy_static! {
[INFO] [stdout] 12 | |     /// Cached zero hashes where `ZERO_HASHES[i]` is the hash of a Merkle tree with 2^i zero leaves.
[INFO] [stdout] 13 | |     static ref ZERO_HASHES: Vec<Vec<u8>> = {
[INFO] [stdout] 14 | |         let mut hashes = vec![vec![0; 32]; MAX_TREE_DEPTH + 1];
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | |     };
[INFO] [stdout] 22 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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 quote v0.6.13
[INFO] [stderr]    Compiling tree_hash_derive v0.1.0
[INFO] [stderr]    Compiling tree_hash v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/merkleize_padded.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / lazy_static! {
[INFO] [stdout] 12 | |     /// Cached zero hashes where `ZERO_HASHES[i]` is the hash of a Merkle tree with 2^i zero leaves.
[INFO] [stdout] 13 | |     static ref ZERO_HASHES: Vec<Vec<u8>> = {
[INFO] [stdout] 14 | |         let mut hashes = vec![vec![0; 32]; MAX_TREE_DEPTH + 1];
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | |     };
[INFO] [stdout] 22 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/merkleize_padded.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / lazy_static! {
[INFO] [stdout] 12 | |     /// Cached zero hashes where `ZERO_HASHES[i]` is the hash of a Merkle tree with 2^i zero leaves.
[INFO] [stdout] 13 | |     static ref ZERO_HASHES: Vec<Vec<u8>> = {
[INFO] [stdout] 14 | |         let mut hashes = vec![vec![0; 32]; MAX_TREE_DEPTH + 1];
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | |     };
[INFO] [stdout] 22 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.16s
[INFO] running `Command { std: "docker" "inspect" "452643ac6dec811208e0f6282e48ece8446bc18da036bf57889dd0b08babd9e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "452643ac6dec811208e0f6282e48ece8446bc18da036bf57889dd0b08babd9e6", kill_on_drop: false }`
[INFO] [stdout] 452643ac6dec811208e0f6282e48ece8446bc18da036bf57889dd0b08babd9e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d18377a7c5c672a81520088bfc4da3836b46397155650af438119e7cb0a7a877
[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" "d18377a7c5c672a81520088bfc4da3836b46397155650af438119e7cb0a7a877", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/merkleize_padded.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / lazy_static! {
[INFO] [stderr] 12 | |     /// Cached zero hashes where `ZERO_HASHES[i]` is the hash of a Merkle tree with 2^i zero leaves.
[INFO] [stderr] 13 | |     static ref ZERO_HASHES: Vec<Vec<u8>> = {
[INFO] [stderr] 14 | |         let mut hashes = vec![vec![0; 32]; MAX_TREE_DEPTH + 1];
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |     };
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/merkleize_padded.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / lazy_static! {
[INFO] [stderr] 12 | |     /// Cached zero hashes where `ZERO_HASHES[i]` is the hash of a Merkle tree with 2^i zero leaves.
[INFO] [stderr] 13 | |     static ref ZERO_HASHES: Vec<Vec<u8>> = {
[INFO] [stderr] 14 | |         let mut hashes = vec![vec![0; 32]; MAX_TREE_DEPTH + 1];
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |     };
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/merkleize_padded.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / lazy_static! {
[INFO] [stderr] 12 | |     /// Cached zero hashes where `ZERO_HASHES[i]` is the hash of a Merkle tree with 2^i zero leaves.
[INFO] [stderr] 13 | |     static ref ZERO_HASHES: Vec<Vec<u8>> = {
[INFO] [stderr] 14 | |         let mut hashes = vec![vec![0; 32]; MAX_TREE_DEPTH + 1];
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |     };
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/merkleize_padded.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / lazy_static! {
[INFO] [stderr] 12 | |     /// Cached zero hashes where `ZERO_HASHES[i]` is the hash of a Merkle tree with 2^i zero leaves.
[INFO] [stderr] 13 | |     static ref ZERO_HASHES: Vec<Vec<u8>> = {
[INFO] [stderr] 14 | |         let mut hashes = vec![vec![0; 32]; MAX_TREE_DEPTH + 1];
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |     };
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tree_hash-2a69b5ef20ecf6c8
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test impls::test::bool ... ok
[INFO] [stdout] test impls::test::int_to_bytes ... ok
[INFO] [stdout] test merkleize_padded::test::random_value::zero_value_3_nodes ... ok
[INFO] [stdout] test merkleize_padded::test::random_value::zero_value_0_nodes ... ok
[INFO] [stdout] test merkleize_padded::test::random_value::zero_value_2_nodes ... ok
[INFO] [stdout] test merkleize_padded::test::random_value::zero_value_8_nodes ... ok
[INFO] [stdout] test merkleize_padded::test::random_value::zero_value_9_nodes ... ok
[INFO] [stdout] test merkleize_padded::test::zero_value::zero_value_1_nodes ... ok
[INFO] [stdout] test merkleize_padded::test::random_value::max_tree_depth_min_nodes ... ok
[INFO] [stdout] test merkleize_padded::test::zero_value::zero_value_2_nodes ... ok
[INFO] [stdout] test merkleize_padded::test::zero_value::zero_value_0_nodes ... ok
[INFO] [stdout] test merkleize_padded::test::zero_value::max_tree_depth_min_nodes ... ok
[INFO] [stdout] test merkleize_padded::test::random_value::zero_value_1_nodes ... ok
[INFO] [stdout] test merkleize_padded::test::random_value::zero_value_4_nodes ... ok
[INFO] [stdout] test merkleize_padded::test::zero_value::zero_value_4_nodes ... ok
[INFO] [stdout] test merkleize_padded::test::zero_value::zero_value_8_nodes ... ok
[INFO] [stdout] test test::mix_length ... ok
[INFO] [stdout] test merkleize_padded::test::zero_value::zero_value_3_nodes ... ok
[INFO] [stdout] test merkleize_padded::test::zero_value::zero_value_9_nodes ... ok
[INFO] [stdout] test merkleize_padded::test::random_value::zero_value_range_of_nodes ... ok
[INFO] [stdout] test merkleize_padded::test::zero_value::zero_value_8_nodes_varying_min_length ... ok
[INFO] [stdout] test merkleize_padded::test::random_value::zero_value_8_nodes_varying_min_length ... ok
[INFO] [stdout] test merkleize_padded::test::zero_value::zero_value_range_of_nodes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tree_hash
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d18377a7c5c672a81520088bfc4da3836b46397155650af438119e7cb0a7a877", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d18377a7c5c672a81520088bfc4da3836b46397155650af438119e7cb0a7a877", kill_on_drop: false }`
[INFO] [stdout] d18377a7c5c672a81520088bfc4da3836b46397155650af438119e7cb0a7a877