[INFO] fetching crate rustbif 0.1.2...
[INFO] checking rustbif-0.1.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate rustbif 0.1.2 into /workspace/builds/worker-3-tc2/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-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustbif 0.1.2 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94a76711ddc9f6dc5944c08aa207e0ad0773e1cd27e35dcc0c5b1955ca4c3531
[INFO] running `Command { std: "docker" "start" "-a" "94a76711ddc9f6dc5944c08aa207e0ad0773e1cd27e35dcc0c5b1955ca4c3531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94a76711ddc9f6dc5944c08aa207e0ad0773e1cd27e35dcc0c5b1955ca4c3531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94a76711ddc9f6dc5944c08aa207e0ad0773e1cd27e35dcc0c5b1955ca4c3531", kill_on_drop: false }`
[INFO] [stdout] 94a76711ddc9f6dc5944c08aa207e0ad0773e1cd27e35dcc0c5b1955ca4c3531
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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 -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 006ac2496a28562758c91683fa03b750436172273e8afe1fedbcb4e2f6198181
[INFO] running `Command { std: "docker" "start" "-a" "006ac2496a28562758c91683fa03b750436172273e8afe1fedbcb4e2f6198181", kill_on_drop: false }`
[INFO] [stderr]    Compiling data-encoding v2.9.0
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]     Checking zigzag v0.1.0
[INFO] [stderr]     Checking base-x v0.2.11
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.16
[INFO] [stderr]    Compiling cerdito-derive v0.1.5
[INFO] [stderr]    Compiling build_async v0.1.3
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]     Checking data-encoding-macro v0.1.18
[INFO] [stderr]     Checking cerdito v0.1.3
[INFO] [stderr]     Checking multibase v0.9.1
[INFO] [stderr]     Checking tokio v1.47.1
[INFO] [stderr]     Checking 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[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)]` (part of `#[warn(unused)]`) 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] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]   --> examples/tokio.rs:26:44
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[derive(Debug, PartialEq, Default, Clone, Encode, Decode)]
[INFO] [stdout]    |                                            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the attribute macro `_async` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]   --> examples/tokio.rs:26:52
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[derive(Debug, PartialEq, Default, Clone, Encode, Decode)]
[INFO] [stdout]    |                                                    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `Decode` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]   --> examples/tokio.rs:34:44
[INFO] [stdout]    |
[INFO] [stdout] 34 | #[derive(Debug, PartialEq, Default, Clone, Encode, Decode)]
[INFO] [stdout]    |                                            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `_async` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]   --> examples/tokio.rs:34:52
[INFO] [stdout]    |
[INFO] [stdout] 34 | #[derive(Debug, PartialEq, Default, Clone, Encode, Decode)]
[INFO] [stdout]    |                                                    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `Decode` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]   --> examples/tokio.rs:68:44
[INFO] [stdout]    |
[INFO] [stdout] 68 | #[derive(Debug, Default, PartialEq, Clone, Encode, Decode)]
[INFO] [stdout]    |                                            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `_async` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]   --> examples/tokio.rs:68:52
[INFO] [stdout]    |
[INFO] [stdout] 68 | #[derive(Debug, Default, PartialEq, Clone, Encode, Decode)]
[INFO] [stdout]    |                                                    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `Decode` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> examples/tokio.rs:132:44
[INFO] [stdout]     |
[INFO] [stdout] 132 | #[derive(Debug, PartialEq, Default, Clone, Encode, Decode)]
[INFO] [stdout]     |                                            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the attribute macro `_async` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> examples/tokio.rs:132:52
[INFO] [stdout]     |
[INFO] [stdout] 132 | #[derive(Debug, PartialEq, Default, Clone, Encode, Decode)]
[INFO] [stdout]     |                                                    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the derive macro `Decode` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustbif` (example "tokio") due to 8 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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)]` (part of `#[warn(unused)]`) 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] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]   --> examples/main.rs:14:26
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[derive(Debug, Default, Encode, Decode)]
[INFO] [stdout]    |                          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the attribute macro `_async` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]   --> examples/main.rs:14:34
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[derive(Debug, Default, Encode, Decode)]
[INFO] [stdout]    |                                  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `Decode` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]   --> examples/main.rs:64:26
[INFO] [stdout]    |
[INFO] [stdout] 64 | #[derive(Debug, Default, Encode, Decode)]
[INFO] [stdout]    |                          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `_async` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]   --> examples/main.rs:64:34
[INFO] [stdout]    |
[INFO] [stdout] 64 | #[derive(Debug, Default, Encode, Decode)]
[INFO] [stdout]    |                                  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `Decode` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]   --> examples/main.rs:93:26
[INFO] [stdout]    |
[INFO] [stdout] 93 | #[derive(Debug, Default, Encode, Decode)]
[INFO] [stdout]    |                          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `_async` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]   --> examples/main.rs:93:34
[INFO] [stdout]    |
[INFO] [stdout] 93 | #[derive(Debug, Default, Encode, Decode)]
[INFO] [stdout]    |                                  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `Decode` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> examples/main.rs:111:33
[INFO] [stdout]     |
[INFO] [stdout] 111 | #[derive(Debug, Default, Clone, Encode, Decode)]
[INFO] [stdout]     |                                 ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the attribute macro `_async` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> examples/main.rs:111:41
[INFO] [stdout]     |
[INFO] [stdout] 111 | #[derive(Debug, Default, Clone, Encode, Decode)]
[INFO] [stdout]     |                                         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the derive macro `Decode` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> examples/main.rs:119:33
[INFO] [stdout]     |
[INFO] [stdout] 119 | #[derive(Debug, Default, Clone, Encode, Decode)]
[INFO] [stdout]     |                                 ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the attribute macro `_async` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> examples/main.rs:119:41
[INFO] [stdout]     |
[INFO] [stdout] 119 | #[derive(Debug, Default, Clone, Encode, Decode)]
[INFO] [stdout]     |                                         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the derive macro `Decode` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustbif` (example "main") due to 10 previous errors; 17 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "006ac2496a28562758c91683fa03b750436172273e8afe1fedbcb4e2f6198181", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "006ac2496a28562758c91683fa03b750436172273e8afe1fedbcb4e2f6198181", kill_on_drop: false }`
[INFO] [stdout] 006ac2496a28562758c91683fa03b750436172273e8afe1fedbcb4e2f6198181