[INFO] fetching crate proof 0.0.0...
[INFO] testing proof-0.0.0 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate proof 0.0.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate proof 0.0.0 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate proof 0.0.0
[INFO] finished tweaking crates.io crate proof 0.0.0
[INFO] tweaked toml for crates.io crate proof 0.0.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", 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]  Downloading crates ...
[INFO] [stderr]   Downloaded opaque-debug v0.2.3
[INFO] [stderr]   Downloaded byte-tools v0.3.1
[INFO] [stderr]   Downloaded impl-rlp v0.2.1
[INFO] [stderr]   Downloaded heapsize v0.4.2
[INFO] [stderr]   Downloaded nodrop v0.1.14
[INFO] [stderr]   Downloaded parity-codec v3.5.4
[INFO] [stderr]   Downloaded static_assertions v0.2.5
[INFO] [stderr]   Downloaded tiny-keccak v1.5.0
[INFO] [stderr]   Downloaded rand_core v0.4.2
[INFO] [stderr]   Downloaded bitflags v1.3.2
[INFO] [stderr]   Downloaded proc-macro2 v0.4.30
[INFO] [stderr]   Downloaded unicode-xid v0.1.0
[INFO] [stderr]   Downloaded syn v0.15.44
[INFO] [stderr]   Downloaded eth2_ssz_derive v0.1.0
[INFO] [stderr]   Downloaded ethereum-types-serialize v0.2.2
[INFO] [stderr]   Downloaded ethereum-types v0.5.2
[INFO] [stderr]   Downloaded eth2_ssz v0.1.2
[INFO] [stderr]   Downloaded rustc-hex v2.1.0
[INFO] [stderr]   Downloaded block-padding v0.1.5
[INFO] [stderr]   Downloaded generic-array v0.12.4
[INFO] [stderr]   Downloaded crunchy v0.2.2
[INFO] [stderr]   Downloaded byteorder v1.4.3
[INFO] [stderr]   Downloaded serde v1.0.130
[INFO] [stderr]   Downloaded fake-simd v0.1.2
[INFO] [stderr]   Downloaded sha2 v0.8.2
[INFO] [stderr]   Downloaded typenum v1.14.0
[INFO] [stderr]   Downloaded block-buffer v0.7.3
[INFO] [stderr]   Downloaded rlp v0.4.6
[INFO] [stderr]   Downloaded fuchsia-cprng v0.1.1
[INFO] [stderr]   Downloaded rand_core v0.3.1
[INFO] [stderr]   Downloaded arrayvec v0.4.12
[INFO] [stderr]   Downloaded impl-serde v0.2.3
[INFO] [stderr]   Downloaded libc v0.2.108
[INFO] [stderr]   Downloaded rand v0.5.6
[INFO] [stderr]   Downloaded primitive-types v0.3.0
[INFO] [stderr]   Downloaded winapi v0.3.9
[INFO] [stderr]   Downloaded quote v0.6.13
[INFO] [stderr]   Downloaded uint v0.7.1
[INFO] [stderr]   Downloaded ethereum-types v0.6.0
[INFO] [stderr]   Downloaded digest v0.8.1
[INFO] [stderr]   Downloaded ethbloom v0.6.4
[INFO] [stderr]   Downloaded fixed-hash v0.3.2
[INFO] [stderr]   Downloaded uint v0.5.0
[INFO] [stderr]   Downloaded impl-codec v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e2eb45084ac1d6a1f76b178361d4e389ddb1e60cbd4cef99f0d32d6cc767837
[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" "3e2eb45084ac1d6a1f76b178361d4e389ddb1e60cbd4cef99f0d32d6cc767837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e2eb45084ac1d6a1f76b178361d4e389ddb1e60cbd4cef99f0d32d6cc767837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e2eb45084ac1d6a1f76b178361d4e389ddb1e60cbd4cef99f0d32d6cc767837", kill_on_drop: false }`
[INFO] [stdout] 3e2eb45084ac1d6a1f76b178361d4e389ddb1e60cbd4cef99f0d32d6cc767837
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f006c3cfe18748b29971fe8db22231a69b42988bc40badb4e9c5b4da44d194c2
[INFO] running `Command { std: "docker" "start" "-a" "f006c3cfe18748b29971fe8db22231a69b42988bc40badb4e9c5b4da44d194c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling rustc-hex v2.1.0
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling static_assertions v0.2.5
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling impl-serde v0.2.3
[INFO] [stderr]    Compiling ethereum-types-serialize v0.2.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling rlp v0.4.6
[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 uint v0.7.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling parity-codec v3.5.4
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling impl-codec v0.2.0
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling fixed-hash v0.3.2
[INFO] [stderr]    Compiling ethbloom v0.6.4
[INFO] [stderr]    Compiling primitive-types v0.3.0
[INFO] [stderr]    Compiling ethereum-types v0.5.2
[INFO] [stderr]    Compiling eth2_ssz_derive v0.1.0
[INFO] [stderr]    Compiling ethereum-types v0.6.0
[INFO] [stderr]    Compiling eth2_ssz v0.1.2
[INFO] [stderr]    Compiling proof v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.93s
[INFO] running `Command { std: "docker" "inspect" "f006c3cfe18748b29971fe8db22231a69b42988bc40badb4e9c5b4da44d194c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f006c3cfe18748b29971fe8db22231a69b42988bc40badb4e9c5b4da44d194c2", kill_on_drop: false }`
[INFO] [stdout] f006c3cfe18748b29971fe8db22231a69b42988bc40badb4e9c5b4da44d194c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b2c0f4a2420184b9c9f20dc5882e75503fd5bf60b20ebc1111c6e3fb1d4021f
[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" "5b2c0f4a2420184b9c9f20dc5882e75503fd5bf60b20ebc1111c6e3fb1d4021f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proof v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `a`
[INFO] [stdout]   --> tests/simple_fixed_vector.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     a: FixedVector<U256, U4>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `timestamp`
[INFO] [stdout]   --> tests/practical_structure.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     timestamp: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `message`
[INFO] [stdout]   --> tests/practical_structure.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     message: FixedVector<u8, U32>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `messages`
[INFO] [stdout]   --> tests/practical_structure.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     messages: VariableList<Message, U8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `a`
[INFO] [stdout]   --> tests/simple_struct.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     a: U256,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `b`
[INFO] [stdout]   --> tests/simple_struct.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     b: U256,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `c`
[INFO] [stdout]   --> tests/simple_struct.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     c: u128,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `d`
[INFO] [stdout]   --> tests/simple_struct.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     d: u128,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `a`
[INFO] [stdout]   --> tests/simple_variable_list.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     a: VariableList<u128, U4>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `a`
[INFO] [stdout]   --> tests/nested_structure.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     a: U256,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `b`
[INFO] [stdout]   --> tests/nested_structure.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     b: VariableList<u128, U8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.26s
[INFO] running `Command { std: "docker" "inspect" "5b2c0f4a2420184b9c9f20dc5882e75503fd5bf60b20ebc1111c6e3fb1d4021f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b2c0f4a2420184b9c9f20dc5882e75503fd5bf60b20ebc1111c6e3fb1d4021f", kill_on_drop: false }`
[INFO] [stdout] 5b2c0f4a2420184b9c9f20dc5882e75503fd5bf60b20ebc1111c6e3fb1d4021f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 96ed4725a6deb39105e335e1401e57d967ba0ad3af0fd01bf26eb67b663221f9
[INFO] running `Command { std: "docker" "start" "-a" "96ed4725a6deb39105e335e1401e57d967ba0ad3af0fd01bf26eb67b663221f9", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `a`
[INFO] [stderr]   --> tests/simple_variable_list.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     a: VariableList<u128, U4>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `timestamp`
[INFO] [stderr]   --> tests/practical_structure.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     timestamp: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `message`
[INFO] [stderr]   --> tests/practical_structure.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     message: FixedVector<u8, U32>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `messages`
[INFO] [stderr]   --> tests/practical_structure.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     messages: VariableList<Message, U8>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `a`
[INFO] [stderr]   --> tests/simple_struct.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     a: U256,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `b`
[INFO] [stderr]   --> tests/simple_struct.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     b: U256,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `c`
[INFO] [stderr]   --> tests/simple_struct.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     c: u128,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `d`
[INFO] [stderr]   --> tests/simple_struct.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     d: u128,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `a`
[INFO] [stderr]   --> tests/simple_fixed_vector.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     a: FixedVector<U256, U4>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `a`
[INFO] [stderr]   --> tests/nested_structure.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     a: U256,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `b`
[INFO] [stderr]   --> tests/nested_structure.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     b: VariableList<u128, U8>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `proof` (test "simple_variable_list") generated 1 warning
[INFO] [stderr] warning: `proof` (test "practical_structure") generated 3 warnings
[INFO] [stderr] warning: `proof` (test "simple_struct") generated 4 warnings
[INFO] [stderr] warning: `proof` (test "simple_fixed_vector") generated 1 warning
[INFO] [stderr] warning: `proof` (test "nested_structure") generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/proof-38601e7f6e0c5adf)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test tree_arithmetic::tests::compute_left_most_leaf ... ok
[INFO] [stdout] test cache::tests::can_fill ... ok
[INFO] [stdout] test tree_arithmetic::tests::compute_root_from_depth ... ok
[INFO] [stdout] test tree_arithmetic::tests::compute_log_base_two ... ok
[INFO] [stdout] test tree_arithmetic::tests::compute_sibling_index ... ok
[INFO] [stdout] test tree_arithmetic::tests::transform_subtree_index_to_general ... ok
[INFO] [stdout] test tree_arithmetic::tests::transform_general_index_to_subtree ... ok
[INFO] [stdout] test tree_arithmetic::tests::determine_if_index_is_in_subtree ... ok
[INFO] [stdout] test tree_arithmetic::tests::compute_expanded_tree_indexes ... ok
[INFO] [stderr]      Running tests/nested_structure.rs (/opt/rustwide/target/debug/deps/nested_structure-8b2e99aca7923f60)
[INFO] [stdout] test tree_arithmetic::tests::next_and_last_power_of_two ... ok
[INFO] [stdout] test tree_arithmetic::tests::compute_right_most_leaf ... ok
[INFO] [stdout] test merkle_tree_overlay::impls::tests::another_simple_fixed_vector ... ok
[INFO] [stdout] test merkle_tree_overlay::impls::tests::nested_fixed_vector ... ok
[INFO] [stdout] test merkle_tree_overlay::impls::tests::nested_variable_list_overlay ... ok
[INFO] [stdout] test merkle_tree_overlay::impls::tests::simple_fixed_vector ... ok
[INFO] [stdout] test merkle_tree_overlay::impls::tests::variable_list_overlay ... ok
[INFO] [stdout] test tree_arithmetic::tests::compute_depth_difference ... ok
[INFO] [stdout] test cache::tests::is_valid ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stderr]      Running tests/practical_structure.rs (/opt/rustwide/target/debug/deps/practical_structure-fd56278015e4776a)
[INFO] [stdout] test get_and_set_by_path ... ok
[INFO] [stdout] test readme_test ... ok
[INFO] [stdout] test roundtrip_partial ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/simple_fixed_vector.rs (/opt/rustwide/target/debug/deps/simple_fixed_vector-6a9a488ee9d9d654)
[INFO] [stdout] test roundtrip_partial ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/simple_struct.rs (/opt/rustwide/target/debug/deps/simple_struct-ae0c624ab6fd1833)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test get_partial_vector ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/simple_variable_list.rs (/opt/rustwide/target/debug/deps/simple_variable_list-602014ff5ef178e5)
[INFO] [stdout] test roundtrip_partial ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test roundtrip_partial ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests proof
[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" "96ed4725a6deb39105e335e1401e57d967ba0ad3af0fd01bf26eb67b663221f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96ed4725a6deb39105e335e1401e57d967ba0ad3af0fd01bf26eb67b663221f9", kill_on_drop: false }`
[INFO] [stdout] 96ed4725a6deb39105e335e1401e57d967ba0ad3af0fd01bf26eb67b663221f9