[INFO] fetching crate rustbif 0.1.2...
[INFO] testing rustbif-0.1.2 against 1.90.0 for beta-1.91-3
[INFO] extracting crate rustbif 0.1.2 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate rustbif 0.1.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rustbif 0.1.2
[INFO] tweaked toml for crates.io crate rustbif 0.1.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustbif 0.1.2 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rustbif 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zigzag v0.1.0
[INFO] [stderr]   Downloaded cerdito-derive v0.1.5
[INFO] [stderr]   Downloaded cerdito v0.1.3
[INFO] [stderr]   Downloaded build_async v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de2ab2585e8f280e7038e897eec8508d31861e9396a6355ea48900ee5bd1274b
[INFO] running `Command { std: "docker" "start" "-a" "de2ab2585e8f280e7038e897eec8508d31861e9396a6355ea48900ee5bd1274b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de2ab2585e8f280e7038e897eec8508d31861e9396a6355ea48900ee5bd1274b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de2ab2585e8f280e7038e897eec8508d31861e9396a6355ea48900ee5bd1274b", kill_on_drop: false }`
[INFO] [stdout] de2ab2585e8f280e7038e897eec8508d31861e9396a6355ea48900ee5bd1274b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c85e87f3d4da9d9b86b4f5d130903b7c46541a3dc3431005290563d3502a9d70
[INFO] running `Command { std: "docker" "start" "-a" "c85e87f3d4da9d9b86b4f5d130903b7c46541a3dc3431005290563d3502a9d70", kill_on_drop: false }`
[INFO] [stderr]    Compiling cerdito-derive v0.1.5
[INFO] [stderr]    Compiling build_async v0.1.3
[INFO] [stderr]    Compiling zigzag v0.1.0
[INFO] [stderr]    Compiling cerdito v0.1.3
[INFO] [stderr]    Compiling rustbif v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated functions `new`, `from_value_f32`, `from_value_f64`, and `from_value_u128` are never used
[INFO] [stdout]   --> src/rustbif.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl VarIntLen {
[INFO] [stdout]    | -------------- associated functions in this implementation
[INFO] [stdout] 28 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn from_value_f32(value: f32) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn from_value_f64(value: f64) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn from_value_u128(value: u128) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.14s
[INFO] running `Command { std: "docker" "inspect" "c85e87f3d4da9d9b86b4f5d130903b7c46541a3dc3431005290563d3502a9d70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c85e87f3d4da9d9b86b4f5d130903b7c46541a3dc3431005290563d3502a9d70", kill_on_drop: false }`
[INFO] [stdout] c85e87f3d4da9d9b86b4f5d130903b7c46541a3dc3431005290563d3502a9d70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29182451d0fe2190b1d0f0c6139edf854683edfd8b97363f57379c48e05ddef9
[INFO] running `Command { std: "docker" "start" "-a" "29182451d0fe2190b1d0f0c6139edf854683edfd8b97363f57379c48e05ddef9", kill_on_drop: false }`
[INFO] [stderr]    Compiling data-encoding v2.9.0
[INFO] [stderr]    Compiling base-x v0.2.11
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stdout] warning: associated functions `new`, `from_value_f32`, `from_value_f64`, and `from_value_u128` are never used
[INFO] [stdout]   --> src/rustbif.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl VarIntLen {
[INFO] [stdout]    | -------------- associated functions in this implementation
[INFO] [stdout] 28 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn from_value_f32(value: f32) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn from_value_f64(value: f64) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn from_value_u128(value: u128) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.16
[INFO] [stderr]    Compiling data-encoding-macro v0.1.18
[INFO] [stderr]    Compiling multibase v0.9.1
[INFO] [stderr]    Compiling rustbif v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated functions `from_value_f32`, `from_value_f64`, and `from_value_u128` are never used
[INFO] [stdout]   --> src/rustbif.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl VarIntLen {
[INFO] [stdout]    | -------------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn from_value_f32(value: f32) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn from_value_f64(value: f64) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn from_value_u128(value: u128) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `varintlen_write_read` is never used
[INFO] [stdout]    --> src/rustbif.rs:661:8
[INFO] [stdout]     |
[INFO] [stdout] 661 |     fn varintlen_write_read(v: VarIntLen) -> VarIntLen {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `M` is never used
[INFO] [stdout]   --> examples/main.rs:26:7
[INFO] [stdout]    |
[INFO] [stdout] 26 | const M: usize = 100;
[INFO] [stdout]    |       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `S1` is never constructed
[INFO] [stdout]   --> examples/main.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct S1<
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `S2` is never constructed
[INFO] [stdout]   --> examples/main.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | struct S2;
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `S3` is never constructed
[INFO] [stdout]   --> examples/main.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | struct S3(i32, String);
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `E1` is never used
[INFO] [stdout]   --> examples/main.rs:50:6
[INFO] [stdout]    |
[INFO] [stdout] 50 | enum E1<T: Debug + Default + Encode + Decode, U: Debug + Default + Encode + Decode> {
[INFO] [stdout]    |      ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DataType` is never used
[INFO] [stdout]   --> examples/main.rs:65:6
[INFO] [stdout]    |
[INFO] [stdout] 65 | enum DataType {
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Field` is never constructed
[INFO] [stdout]   --> examples/main.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 90 | struct Field(Option<String>, Box<DataType>);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Variant` is never constructed
[INFO] [stdout]   --> examples/main.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | struct Variant(String, Option<Discriminant>, Box<DataType>);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Discriminant` is never used
[INFO] [stdout]   --> examples/main.rs:94:6
[INFO] [stdout]    |
[INFO] [stdout] 94 | enum Discriminant {
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ContentID` is never used
[INFO] [stdout]    --> examples/main.rs:120:6
[INFO] [stdout]     |
[INFO] [stdout] 120 | enum ContentID {
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `EncryptionKey` is never used
[INFO] [stdout]    --> examples/main.rs:129:6
[INFO] [stdout]     |
[INFO] [stdout] 129 | enum EncryptionKey {
[INFO] [stdout]     |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileName` is never constructed
[INFO] [stdout]    --> examples/main.rs:135:8
[INFO] [stdout]     |
[INFO] [stdout] 135 | struct FileName(String); // string w/o '/'
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DirectoryEntry` is never used
[INFO] [stdout]    --> examples/main.rs:153:6
[INFO] [stdout]     |
[INFO] [stdout] 153 | enum DirectoryEntry {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PublicKey` is never constructed
[INFO] [stdout]    --> examples/main.rs:167:8
[INFO] [stdout]     |
[INFO] [stdout] 167 | struct PublicKey;
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Signature` is never constructed
[INFO] [stdout]    --> examples/main.rs:170:8
[INFO] [stdout]     |
[INFO] [stdout] 170 | struct Signature;
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Link` is never constructed
[INFO] [stdout]    --> examples/main.rs:173:8
[INFO] [stdout]     |
[INFO] [stdout] 173 | struct Link {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `E1U8I8` is never used
[INFO] [stdout]    --> examples/main.rs:203:10
[INFO] [stdout]     |
[INFO] [stdout] 203 |     type E1U8I8 = E1<u8, i8>;
[INFO] [stdout]     |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 15.72s
[INFO] running `Command { std: "docker" "inspect" "29182451d0fe2190b1d0f0c6139edf854683edfd8b97363f57379c48e05ddef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29182451d0fe2190b1d0f0c6139edf854683edfd8b97363f57379c48e05ddef9", kill_on_drop: false }`
[INFO] [stdout] 29182451d0fe2190b1d0f0c6139edf854683edfd8b97363f57379c48e05ddef9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6a1c2d0c6a6b89dfafe90144ec80a71a74c6bb752a5312fe07f900b7785e4768
[INFO] running `Command { std: "docker" "start" "-a" "6a1c2d0c6a6b89dfafe90144ec80a71a74c6bb752a5312fe07f900b7785e4768", kill_on_drop: false }`
[INFO] [stderr] warning: associated functions `new`, `from_value_f32`, `from_value_f64`, and `from_value_u128` are never used
[INFO] [stderr]   --> src/rustbif.rs:28:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | impl VarIntLen {
[INFO] [stderr]    | -------------- associated functions in this implementation
[INFO] [stderr] 28 |     fn new() -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 31 |     fn from_value_f32(value: f32) -> Self {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 34 |     fn from_value_f64(value: f64) -> Self {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 40 |     fn from_value_u128(value: u128) -> Self {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rustbif` (lib) generated 1 warning
[INFO] [stderr] warning: constant `M` is never used
[INFO] [stderr]   --> examples/main.rs:26:7
[INFO] [stderr]    |
[INFO] [stderr] 26 | const M: usize = 100;
[INFO] [stderr]    |       ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `S1` is never constructed
[INFO] [stderr]   --> examples/main.rs:29:8
[INFO] [stderr]    |
[INFO] [stderr] 29 | struct S1<
[INFO] [stderr]    |        ^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `S2` is never constructed
[INFO] [stderr]   --> examples/main.rs:43:8
[INFO] [stderr]    |
[INFO] [stderr] 43 | struct S2;
[INFO] [stderr]    |        ^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `S3` is never constructed
[INFO] [stderr]   --> examples/main.rs:46:8
[INFO] [stderr]    |
[INFO] [stderr] 46 | struct S3(i32, String);
[INFO] [stderr]    |        ^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `E1` is never used
[INFO] [stderr]   --> examples/main.rs:50:6
[INFO] [stderr]    |
[INFO] [stderr] 50 | enum E1<T: Debug + Default + Encode + Decode, U: Debug + Default + Encode + Decode> {
[INFO] [stderr]    |      ^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `DataType` is never used
[INFO] [stderr]   --> examples/main.rs:65:6
[INFO] [stderr]    |
[INFO] [stderr] 65 | enum DataType {
[INFO] [stderr]    |      ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Field` is never constructed
[INFO] [stderr]   --> examples/main.rs:90:8
[INFO] [stderr]    |
[INFO] [stderr] 90 | struct Field(Option<String>, Box<DataType>);
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Variant` is never constructed
[INFO] [stderr]   --> examples/main.rs:92:8
[INFO] [stderr]    |
[INFO] [stderr] 92 | struct Variant(String, Option<Discriminant>, Box<DataType>);
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Discriminant` is never used
[INFO] [stderr]   --> examples/main.rs:94:6
[INFO] [stderr]    |
[INFO] [stderr] 94 | enum Discriminant {
[INFO] [stderr]    |      ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `ContentID` is never used
[INFO] [stderr]    --> examples/main.rs:120:6
[INFO] [stderr]     |
[INFO] [stderr] 120 | enum ContentID {
[INFO] [stderr]     |      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `EncryptionKey` is never used
[INFO] [stderr]    --> examples/main.rs:129:6
[INFO] [stderr]     |
[INFO] [stderr] 129 | enum EncryptionKey {
[INFO] [stderr]     |      ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FileName` is never constructed
[INFO] [stderr]    --> examples/main.rs:135:8
[INFO] [stderr]     |
[INFO] [stderr] 135 | struct FileName(String); // string w/o '/'
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `DirectoryEntry` is never used
[INFO] [stderr]    --> examples/main.rs:153:6
[INFO] [stderr]     |
[INFO] [stderr] 153 | enum DirectoryEntry {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `PublicKey` is never constructed
[INFO] [stderr]    --> examples/main.rs:167:8
[INFO] [stderr]     |
[INFO] [stderr] 167 | struct PublicKey;
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Signature` is never constructed
[INFO] [stderr]    --> examples/main.rs:170:8
[INFO] [stderr]     |
[INFO] [stderr] 170 | struct Signature;
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Link` is never constructed
[INFO] [stderr]    --> examples/main.rs:173:8
[INFO] [stderr]     |
[INFO] [stderr] 173 | struct Link {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `E1U8I8` is never used
[INFO] [stderr]    --> examples/main.rs:203:10
[INFO] [stderr]     |
[INFO] [stderr] 203 |     type E1U8I8 = E1<u8, i8>;
[INFO] [stderr]     |          ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated functions `from_value_f32`, `from_value_f64`, and `from_value_u128` are never used
[INFO] [stderr]   --> src/rustbif.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | impl VarIntLen {
[INFO] [stderr]    | -------------- associated functions in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 31 |     fn from_value_f32(value: f32) -> Self {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 34 |     fn from_value_f64(value: f64) -> Self {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 40 |     fn from_value_u128(value: u128) -> Self {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `varintlen_write_read` is never used
[INFO] [stderr]    --> src/rustbif.rs:661:8
[INFO] [stderr]     |
[INFO] [stderr] 661 |     fn varintlen_write_read(v: VarIntLen) -> VarIntLen {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rustbif` (example "main") generated 17 warnings
[INFO] [stderr] warning: `rustbif` (lib test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rustbif-b135f1f7e9ed78a5)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test rustbif::tests::test_varintlen_read ... ok
[INFO] [stdout] test rustbif::tests::test_varintlen_write_struct_lens ... ok
[INFO] [stdout] test rustbif::tests::test_varintlen_write_byte_sizes ... ok
[INFO] [stdout] test rustbif::tests::test_varintlen_write_values ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rustbif
[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" "6a1c2d0c6a6b89dfafe90144ec80a71a74c6bb752a5312fe07f900b7785e4768", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a1c2d0c6a6b89dfafe90144ec80a71a74c6bb752a5312fe07f900b7785e4768", kill_on_drop: false }`
[INFO] [stdout] 6a1c2d0c6a6b89dfafe90144ec80a71a74c6bb752a5312fe07f900b7785e4768