[INFO] fetching crate bufkit 0.5.1...
[INFO] checking bufkit-0.5.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate bufkit 0.5.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate bufkit 0.5.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate bufkit 0.5.1
[INFO] tweaked toml for crates.io crate bufkit 0.5.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate bufkit 0.5.1 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 bufkit 0.5.1 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] [stderr]     Blocking waiting for file lock on package cache
[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] c7a12993b0486c0238de616401161e8c9555f2886acfec935383b69869f3c340
[INFO] running `Command { std: "docker" "start" "-a" "c7a12993b0486c0238de616401161e8c9555f2886acfec935383b69869f3c340", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7a12993b0486c0238de616401161e8c9555f2886acfec935383b69869f3c340", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7a12993b0486c0238de616401161e8c9555f2886acfec935383b69869f3c340", kill_on_drop: false }`
[INFO] [stdout] c7a12993b0486c0238de616401161e8c9555f2886acfec935383b69869f3c340
[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] 5fd4d6f495e66ea546800cb1a190dbe658e5be668325479f72fc31ad3e5f869e
[INFO] running `Command { std: "docker" "start" "-a" "5fd4d6f495e66ea546800cb1a190dbe658e5be668325479f72fc31ad3e5f869e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.97
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling serde_json v1.0.142
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking half v2.6.0
[INFO] [stderr]    Compiling thiserror v2.0.14
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking clap_builder v4.5.44
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking oorandom v11.1.5
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking criterion-plot v0.6.0
[INFO] [stderr]     Checking clap v4.5.45
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling thiserror-impl v2.0.14
[INFO] [stderr]     Checking bufkit v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.7.0
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Error>
[INFO] [stdout]   --> examples/chunk_mut.rs:29:70
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn encode<B: ChunkMut>(&self, buf: &mut B) -> Result<usize, Error> {
[INFO] [stdout]    |  ______________________________________________________________________^
[INFO] [stdout] 30 | |     let mut offset = buf.write_u32_le(self.value);
[INFO] [stdout] 31 | |     offset += buf.write_u32_le(self.other.len() as u32);
[INFO] [stdout] 32 | |     offset += buf.write_slice(self.other.as_ref());
[INFO] [stdout] 33 | |     Ok(offset)
[INFO] [stdout] 34 | |   }
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Error>
[INFO] [stdout]   --> examples/chunk_mut.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     Ok(offset)
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, Foo), Error>
[INFO] [stdout]   --> examples/chunk_mut.rs:38:67
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn decode<B: Chunk>(mut buf: B) -> Result<(usize, Self), Error> {
[INFO] [stdout]    |  ___________________________________________________________________^
[INFO] [stdout] 39 | |     let value = buf.read_u32_le();
[INFO] [stdout] 40 | |     let other_len = buf.read_u32_le() as usize;
[INFO] [stdout] 41 | |     let other = buf.prefix(other_len).to_vec();
[INFO] [stdout] 42 | |     buf.advance(other_len);
[INFO] [stdout] 43 | |     Ok((8 + other_len, Foo { value, other }))
[INFO] [stdout] 44 | |   }
[INFO] [stdout]    | |___^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, Foo), Error>
[INFO] [stdout]   --> examples/chunk_mut.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Ok((8 + other_len, Foo { value, other }))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bufkit` (example "chunk_mut") due to 18 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Error>
[INFO] [stdout]   --> examples/chunk_mut.rs:59:70
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn encode<B: ChunkMut>(&self, buf: &mut B) -> Result<usize, Error> {
[INFO] [stdout]    |  ______________________________________________________________________^
[INFO] [stdout] 60 | |     let mut offset = buf.write_u64_le(self.id);
[INFO] [stdout] 61 | |     offset += self.foo.encode(buf)?;
[INFO] [stdout] 62 | |     offset += buf.write_u32_le(self.n);
[INFO] [stdout] 63 | |     Ok(offset)
[INFO] [stdout] 64 | |   }
[INFO] [stdout]    | |___^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Error>, usize>
[INFO] [stdout]   --> examples/chunk_mut.rs:61:15
[INFO] [stdout]    |
[INFO] [stdout] 61 |     offset += self.foo.encode(buf)?;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Error>
[INFO] [stdout]   --> examples/chunk_mut.rs:61:15
[INFO] [stdout]    |
[INFO] [stdout] 61 |     offset += self.foo.encode(buf)?;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Error>
[INFO] [stdout]   --> examples/chunk_mut.rs:61:15
[INFO] [stdout]    |
[INFO] [stdout] 61 |     offset += self.foo.encode(buf)?;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Error>
[INFO] [stdout]   --> examples/chunk_mut.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     Ok(offset)
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, Bar), Error>
[INFO] [stdout]   --> examples/chunk_mut.rs:68:67
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn decode<B: Chunk>(mut buf: B) -> Result<(usize, Self), Error> {
[INFO] [stdout]    |  ___________________________________________________________________^
[INFO] [stdout] 69 | |     let id = buf.read_u64_le();
[INFO] [stdout] 70 | |     let (foo_len, foo) = Foo::decode(buf.buffer())?;
[INFO] [stdout] 71 | |     buf.advance(foo_len);
[INFO] [stdout] 72 | |     let n = buf.read_u32_le();
[INFO] [stdout] 73 | |     Ok((12 + foo_len, Bar { id, foo, n }))
[INFO] [stdout] 74 | |   }
[INFO] [stdout]    | |___^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Error>, (usize, Foo)>
[INFO] [stdout]   --> examples/chunk_mut.rs:70:26
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let (foo_len, foo) = Foo::decode(buf.buffer())?;
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, Foo), Error>
[INFO] [stdout]   --> examples/chunk_mut.rs:70:26
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let (foo_len, foo) = Foo::decode(buf.buffer())?;
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, Bar), Error>
[INFO] [stdout]   --> examples/chunk_mut.rs:70:26
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let (foo_len, foo) = Foo::decode(buf.buffer())?;
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, Bar), Error>
[INFO] [stdout]   --> examples/chunk_mut.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     Ok((12 + foo_len, Bar { id, foo, n }))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Error>
[INFO] [stdout]   --> examples/chunk_mut.rs:84:23
[INFO] [stdout]    |
[INFO] [stdout] 84 |   let encoded = match foo.encode(&mut &mut buffer[..]) {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, Foo), Error>
[INFO] [stdout]   --> examples/chunk_mut.rs:89:22
[INFO] [stdout]    |
[INFO] [stdout] 89 |   let (_, decoded) = Foo::decode(&buffer[..encoded]).unwrap();
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Error>
[INFO] [stdout]   --> examples/chunk_mut.rs:99:27
[INFO] [stdout]    |
[INFO] [stdout] 99 |   let encoded_bar = match bar.encode(&mut &mut buffer[..]) {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, Bar), Error>
[INFO] [stdout]    --> examples/chunk_mut.rs:104:26
[INFO] [stdout]     |
[INFO] [stdout] 104 |   let (_, decoded_bar) = Bar::decode(&buffer[..encoded_bar]).unwrap();
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Error>
[INFO] [stdout]   --> examples/chunk_writer.rs:29:89
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn encode<B: ChunkMut>(&self, buf: impl Into<ChunkWriter<B>>) -> Result<usize, Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 30 | |     let mut buf = buf.into();
[INFO] [stdout] 31 | |     let mut offset = buf.write_u32_le(self.value);
[INFO] [stdout] 32 | |     offset += buf.write_u32_le(self.other.len() as u32);
[INFO] [stdout] 33 | |     offset += buf.write_slice(self.other.as_ref());
[INFO] [stdout] 34 | |     Ok(offset)
[INFO] [stdout] 35 | |   }
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Error>
[INFO] [stdout]   --> examples/chunk_writer.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     Ok(offset)
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, Foo), Error>
[INFO] [stdout]   --> examples/chunk_writer.rs:39:67
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn decode<B: Chunk>(mut buf: B) -> Result<(usize, Self), Error> {
[INFO] [stdout]    |  ___________________________________________________________________^
[INFO] [stdout] 40 | |     let value = buf.read_u32_le();
[INFO] [stdout] 41 | |     let other_len = buf.read_u32_le() as usize;
[INFO] [stdout] 42 | |     let other = buf.prefix(other_len).to_vec();
[INFO] [stdout] 43 | |     buf.advance(other_len);
[INFO] [stdout] 44 | |     Ok((8 + other_len, Foo { value, other }))
[INFO] [stdout] 45 | |   }
[INFO] [stdout]    | |___^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, Foo), Error>
[INFO] [stdout]   --> examples/chunk_writer.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     Ok((8 + other_len, Foo { value, other }))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Error>
[INFO] [stdout]   --> examples/chunk_writer.rs:60:89
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn encode<B: ChunkMut>(&self, buf: impl Into<ChunkWriter<B>>) -> Result<usize, Error> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 61 | |     let mut buf = buf.into();
[INFO] [stdout] 62 | |     let mut offset = buf.write_u64_le(self.id);
[INFO] [stdout] 63 | |     offset += self.foo.encode::<&mut B>(buf.as_mut())?;
[INFO] [stdout] 64 | |     offset += buf.write_u32_le(self.n);
[INFO] [stdout] 65 | |     Ok(offset)
[INFO] [stdout] 66 | |   }
[INFO] [stdout]    | |___^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Error>, usize>
[INFO] [stdout]   --> examples/chunk_writer.rs:63:15
[INFO] [stdout]    |
[INFO] [stdout] 63 |     offset += self.foo.encode::<&mut B>(buf.as_mut())?;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Error>
[INFO] [stdout]   --> examples/chunk_writer.rs:63:15
[INFO] [stdout]    |
[INFO] [stdout] 63 |     offset += self.foo.encode::<&mut B>(buf.as_mut())?;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Error>
[INFO] [stdout]   --> examples/chunk_writer.rs:63:15
[INFO] [stdout]    |
[INFO] [stdout] 63 |     offset += self.foo.encode::<&mut B>(buf.as_mut())?;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Error>
[INFO] [stdout]   --> examples/chunk_writer.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     Ok(offset)
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, Bar), Error>
[INFO] [stdout]   --> examples/chunk_writer.rs:70:67
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn decode<B: Chunk>(mut buf: B) -> Result<(usize, Self), Error> {
[INFO] [stdout]    |  ___________________________________________________________________^
[INFO] [stdout] 71 | |     let id = buf.read_u64_le();
[INFO] [stdout] 72 | |     let (foo_len, foo) = Foo::decode(buf.buffer())?;
[INFO] [stdout] 73 | |     buf.advance(foo_len);
[INFO] [stdout] 74 | |     let n = buf.read_u32_le();
[INFO] [stdout] 75 | |     Ok((12 + foo_len, Bar { id, foo, n }))
[INFO] [stdout] 76 | |   }
[INFO] [stdout]    | |___^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Error>, (usize, Foo)>
[INFO] [stdout]   --> examples/chunk_writer.rs:72:26
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let (foo_len, foo) = Foo::decode(buf.buffer())?;
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, Foo), Error>
[INFO] [stdout]   --> examples/chunk_writer.rs:72:26
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let (foo_len, foo) = Foo::decode(buf.buffer())?;
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, Bar), Error>
[INFO] [stdout]   --> examples/chunk_writer.rs:72:26
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let (foo_len, foo) = Foo::decode(buf.buffer())?;
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, Bar), Error>
[INFO] [stdout]   --> examples/chunk_writer.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     Ok((12 + foo_len, Bar { id, foo, n }))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Error>
[INFO] [stdout]   --> examples/chunk_writer.rs:86:23
[INFO] [stdout]    |
[INFO] [stdout] 86 |   let encoded = match foo.encode(&mut buffer[..]) {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, Foo), Error>
[INFO] [stdout]   --> examples/chunk_writer.rs:91:22
[INFO] [stdout]    |
[INFO] [stdout] 91 |   let (_, decoded) = Foo::decode(&buffer[..encoded]).unwrap();
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Error>
[INFO] [stdout]    --> examples/chunk_writer.rs:101:27
[INFO] [stdout]     |
[INFO] [stdout] 101 |   let encoded_bar = match bar.encode(&mut buffer[..]) {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, Bar), Error>
[INFO] [stdout]    --> examples/chunk_writer.rs:105:26
[INFO] [stdout]     |
[INFO] [stdout] 105 |   let (_, decoded_bar) = Bar::decode(&buffer[..encoded_bar]).unwrap();
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Error>
[INFO] [stdout]    --> examples/chunk_writer.rs:112:27
[INFO] [stdout]     |
[INFO] [stdout] 112 |   let encoded_bar = match bar.encode(vec.as_mut_slice()) {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, Bar), Error>
[INFO] [stdout]    --> examples/chunk_writer.rs:117:26
[INFO] [stdout]     |
[INFO] [stdout] 117 |   let (_, decoded_bar) = Bar::decode(&vec[..encoded_bar]).unwrap();
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bufkit` (example "chunk_writer") due to 20 previous errors
[INFO] running `Command { std: "docker" "inspect" "5fd4d6f495e66ea546800cb1a190dbe658e5be668325479f72fc31ad3e5f869e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fd4d6f495e66ea546800cb1a190dbe658e5be668325479f72fc31ad3e5f869e", kill_on_drop: false }`
[INFO] [stdout] 5fd4d6f495e66ea546800cb1a190dbe658e5be668325479f72fc31ad3e5f869e
