[INFO] cloning repository https://github.com/Craig-Macomber/exist
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Craig-Macomber/exist" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCraig-Macomber%2Fexist", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCraig-Macomber%2Fexist'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 139a0bf6d1efdafdc8d4226edc21b6f8a99808eb
[INFO] testing Craig-Macomber/exist against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCraig-Macomber%2Fexist" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Craig-Macomber/exist on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Craig-Macomber/exist
[INFO] finished tweaking git repo https://github.com/Craig-Macomber/exist
[INFO] tweaked toml for git repo https://github.com/Craig-Macomber/exist written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Craig-Macomber/exist already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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 v0.2.1
[INFO] [stderr]   Downloaded byte-tools v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b0ec796cd9431a52a1a4a6cf5ca8589826ac282a3cc1060b27f95fb7787942f
[INFO] running `Command { std: "docker" "start" "-a" "5b0ec796cd9431a52a1a4a6cf5ca8589826ac282a3cc1060b27f95fb7787942f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b0ec796cd9431a52a1a4a6cf5ca8589826ac282a3cc1060b27f95fb7787942f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b0ec796cd9431a52a1a4a6cf5ca8589826ac282a3cc1060b27f95fb7787942f", kill_on_drop: false }`
[INFO] [stdout] 5b0ec796cd9431a52a1a4a6cf5ca8589826ac282a3cc1060b27f95fb7787942f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e619f840726d32c4703f8cd96c38cd946ac0e2c370a7439f6bb5fd71dcde4b8
[INFO] running `Command { std: "docker" "start" "-a" "6e619f840726d32c4703f8cd96c38cd946ac0e2c370a7439f6bb5fd71dcde4b8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling serde v1.0.83
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling byte-tools v0.3.0
[INFO] [stderr]    Compiling opaque-debug v0.2.1
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]    Compiling generic-array v0.12.0
[INFO] [stderr]    Compiling crypto-mac v0.7.0
[INFO] [stderr]    Compiling digest v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.83
[INFO] [stderr]    Compiling blake2 v0.8.0
[INFO] [stderr]    Compiling serde_cbor v0.9.0
[INFO] [stderr]    Compiling bincode v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.34
[INFO] [stderr]    Compiling exist v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: ambiguous associated item
[INFO] [stdout]   --> src/data_models/leaf_tree.rs:34:37
[INFO] [stdout]    |
[INFO] [stdout] 34 |         fn visit<V: Visitor<Value = Self::Value>>(&self, v: &mut V) {
[INFO] [stdout]    |                                     ^^^^^^^^^^^ help: use fully-qualified syntax: `<leaf_tree::concrete::Concrete<Value> as View>::Value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ambiguous_associated_items)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #57644 <https://github.com/rust-lang/rust/issues/57644>
[INFO] [stdout] note: `Value` could refer to the variant defined here
[INFO] [stdout]   --> src/data_models/leaf_tree.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         Value(V),
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] note: `Value` could also refer to the associated type defined here
[INFO] [stdout]   --> src/data_models/mod.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |             $(type $Items;)*
[INFO] [stdout]    |               ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/data_models/leaf_tree.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | Visitable!(View, Visitor, Value);
[INFO] [stdout]    | -------------------------------- in this macro invocation
[INFO] [stdout]    = note: this warning originates in the macro `Visitable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BYTE_PATTERN_TEMPLATE_MARKER`
[INFO] [stdout]   --> src/prefix_encoding.rs:80:1
[INFO] [stdout]    |
[INFO] [stdout] 80 | const BYTE_PATTERN_TEMPLATE_MARKER: u8 = 2;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TREE_TEMPLATE_MARKER`
[INFO] [stdout]   --> src/prefix_encoding.rs:95:1
[INFO] [stdout]    |
[INFO] [stdout] 95 | const TREE_TEMPLATE_MARKER: u8 = 3;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TEMPLATE_USE_SEQUENCE_MARKER`
[INFO] [stdout]    --> src/prefix_encoding.rs:112:1
[INFO] [stdout]     |
[INFO] [stdout] 112 | const TEMPLATE_USE_SEQUENCE_MARKER: u8 = 5;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Shape`
[INFO] [stdout]    --> src/prefix_encoding.rs:176:8
[INFO] [stdout]     |
[INFO] [stdout] 176 | struct Shape {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_shape`
[INFO] [stdout]    --> src/prefix_encoding.rs:180:4
[INFO] [stdout]     |
[INFO] [stdout] 180 | fn get_shape<TView: View<Value = u8>>(view: TView) -> Shape {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ShapeState`
[INFO] [stdout]    --> src/prefix_encoding.rs:204:8
[INFO] [stdout]     |
[INFO] [stdout] 204 | struct ShapeState {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `size`
[INFO] [stdout]  --> src/leaf_tree_template.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     size: u32,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `offset`
[INFO] [stdout]   --> src/leaf_tree_template.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     offset: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.04s
[INFO] running `Command { std: "docker" "inspect" "6e619f840726d32c4703f8cd96c38cd946ac0e2c370a7439f6bb5fd71dcde4b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e619f840726d32c4703f8cd96c38cd946ac0e2c370a7439f6bb5fd71dcde4b8", kill_on_drop: false }`
[INFO] [stdout] 6e619f840726d32c4703f8cd96c38cd946ac0e2c370a7439f6bb5fd71dcde4b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a259e07611e31ff1d9e59eb1403f973a474fd28cc85da69abbb403324e0789a
[INFO] running `Command { std: "docker" "start" "-a" "8a259e07611e31ff1d9e59eb1403f973a474fd28cc85da69abbb403324e0789a", kill_on_drop: false }`
[INFO] [stderr]    Compiling exist v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: ambiguous associated item
[INFO] [stdout]   --> src/data_models/leaf_tree.rs:34:37
[INFO] [stdout]    |
[INFO] [stdout] 34 |         fn visit<V: Visitor<Value = Self::Value>>(&self, v: &mut V) {
[INFO] [stdout]    |                                     ^^^^^^^^^^^ help: use fully-qualified syntax: `<leaf_tree::concrete::Concrete<Value> as View>::Value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ambiguous_associated_items)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #57644 <https://github.com/rust-lang/rust/issues/57644>
[INFO] [stdout] note: `Value` could refer to the variant defined here
[INFO] [stdout]   --> src/data_models/leaf_tree.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         Value(V),
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] note: `Value` could also refer to the associated type defined here
[INFO] [stdout]   --> src/data_models/mod.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |             $(type $Items;)*
[INFO] [stdout]    |               ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/data_models/leaf_tree.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | Visitable!(View, Visitor, Value);
[INFO] [stdout]    | -------------------------------- in this macro invocation
[INFO] [stdout]    = note: this warning originates in the macro `Visitable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BYTE_PATTERN_TEMPLATE_MARKER`
[INFO] [stdout]   --> src/prefix_encoding.rs:80:1
[INFO] [stdout]    |
[INFO] [stdout] 80 | const BYTE_PATTERN_TEMPLATE_MARKER: u8 = 2;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TREE_TEMPLATE_MARKER`
[INFO] [stdout]   --> src/prefix_encoding.rs:95:1
[INFO] [stdout]    |
[INFO] [stdout] 95 | const TREE_TEMPLATE_MARKER: u8 = 3;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TEMPLATE_USE_SEQUENCE_MARKER`
[INFO] [stdout]    --> src/prefix_encoding.rs:112:1
[INFO] [stdout]     |
[INFO] [stdout] 112 | const TEMPLATE_USE_SEQUENCE_MARKER: u8 = 5;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Shape`
[INFO] [stdout]    --> src/prefix_encoding.rs:176:8
[INFO] [stdout]     |
[INFO] [stdout] 176 | struct Shape {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_shape`
[INFO] [stdout]    --> src/prefix_encoding.rs:180:4
[INFO] [stdout]     |
[INFO] [stdout] 180 | fn get_shape<TView: View<Value = u8>>(view: TView) -> Shape {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ShapeState`
[INFO] [stdout]    --> src/prefix_encoding.rs:204:8
[INFO] [stdout]     |
[INFO] [stdout] 204 | struct ShapeState {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `size`
[INFO] [stdout]  --> src/leaf_tree_template.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     size: u32,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `offset`
[INFO] [stdout]   --> src/leaf_tree_template.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     offset: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "8a259e07611e31ff1d9e59eb1403f973a474fd28cc85da69abbb403324e0789a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a259e07611e31ff1d9e59eb1403f973a474fd28cc85da69abbb403324e0789a", kill_on_drop: false }`
[INFO] [stdout] 8a259e07611e31ff1d9e59eb1403f973a474fd28cc85da69abbb403324e0789a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f2d319c87f302fbfe064a7a2879f14d64fab9aaf62c0f7a68a001d0cbda9d81d
[INFO] running `Command { std: "docker" "start" "-a" "f2d319c87f302fbfe064a7a2879f14d64fab9aaf62c0f7a68a001d0cbda9d81d", kill_on_drop: false }`
[INFO] [stderr] warning: ambiguous associated item
[INFO] [stderr]   --> src/data_models/leaf_tree.rs:34:37
[INFO] [stderr]    |
[INFO] [stderr] 34 |         fn visit<V: Visitor<Value = Self::Value>>(&self, v: &mut V) {
[INFO] [stderr]    |                                     ^^^^^^^^^^^ help: use fully-qualified syntax: `<leaf_tree::concrete::Concrete<Value> as View>::Value`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ambiguous_associated_items)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #57644 <https://github.com/rust-lang/rust/issues/57644>
[INFO] [stderr] note: `Value` could refer to the variant defined here
[INFO] [stderr]   --> src/data_models/leaf_tree.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |         Value(V),
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] note: `Value` could also refer to the associated type defined here
[INFO] [stderr]   --> src/data_models/mod.rs:14:15
[INFO] [stderr]    |
[INFO] [stderr] 14 |             $(type $Items;)*
[INFO] [stderr]    |               ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/data_models/leaf_tree.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | Visitable!(View, Visitor, Value);
[INFO] [stderr]    | -------------------------------- in this macro invocation
[INFO] [stderr]    = note: this warning originates in the macro `Visitable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `BYTE_PATTERN_TEMPLATE_MARKER`
[INFO] [stderr]   --> src/prefix_encoding.rs:80:1
[INFO] [stderr]    |
[INFO] [stderr] 80 | const BYTE_PATTERN_TEMPLATE_MARKER: u8 = 2;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `TREE_TEMPLATE_MARKER`
[INFO] [stderr]   --> src/prefix_encoding.rs:95:1
[INFO] [stderr]    |
[INFO] [stderr] 95 | const TREE_TEMPLATE_MARKER: u8 = 3;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `TEMPLATE_USE_SEQUENCE_MARKER`
[INFO] [stderr]    --> src/prefix_encoding.rs:112:1
[INFO] [stderr]     |
[INFO] [stderr] 112 | const TEMPLATE_USE_SEQUENCE_MARKER: u8 = 5;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Shape`
[INFO] [stderr]    --> src/prefix_encoding.rs:176:8
[INFO] [stderr]     |
[INFO] [stderr] 176 | struct Shape {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_shape`
[INFO] [stderr]    --> src/prefix_encoding.rs:180:4
[INFO] [stderr]     |
[INFO] [stderr] 180 | fn get_shape<TView: View<Value = u8>>(view: TView) -> Shape {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ShapeState`
[INFO] [stderr]    --> src/prefix_encoding.rs:204:8
[INFO] [stderr]     |
[INFO] [stderr] 204 | struct ShapeState {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `size`
[INFO] [stderr]  --> src/leaf_tree_template.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     size: u32,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `offset`
[INFO] [stderr]   --> src/leaf_tree_template.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     offset: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `exist` (bin "exist" test) generated 9 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/exist-d5f76aa7ed105473)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::encode_empty ... ok
[INFO] [stdout] test tests::encode_list ... ok
[INFO] [stdout] test data_models::typed_value_tree::concrete::tests::test_view_to_concrete ... ok
[INFO] [stdout] test tests::encode_list2 ... ok
[INFO] [stdout] test tests::encode_list_dup ... ok
[INFO] [stdout] test tests::encode_value ... ok
[INFO] [stdout] test tests::encode_list_dup2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f2d319c87f302fbfe064a7a2879f14d64fab9aaf62c0f7a68a001d0cbda9d81d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2d319c87f302fbfe064a7a2879f14d64fab9aaf62c0f7a68a001d0cbda9d81d", kill_on_drop: false }`
[INFO] [stdout] f2d319c87f302fbfe064a7a2879f14d64fab9aaf62c0f7a68a001d0cbda9d81d