[INFO] fetching crate aol 0.3.2...
[INFO] checking aol-0.3.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate aol 0.3.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate aol 0.3.2
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate aol 0.3.2
[INFO] tweaked toml for crates.io crate aol 0.3.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate aol 0.3.2 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 aol 0.3.2 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] a00e7b4f6f91827fefe883139dd4b31595e951d0afa8d32b54a06f04f4caa64f
[INFO] running `Command { std: "docker" "start" "-a" "a00e7b4f6f91827fefe883139dd4b31595e951d0afa8d32b54a06f04f4caa64f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a00e7b4f6f91827fefe883139dd4b31595e951d0afa8d32b54a06f04f4caa64f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a00e7b4f6f91827fefe883139dd4b31595e951d0afa8d32b54a06f04f4caa64f", kill_on_drop: false }`
[INFO] [stdout] a00e7b4f6f91827fefe883139dd4b31595e951d0afa8d32b54a06f04f4caa64f
[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] 9465fd01c461d0af9e77472d40e8d1939049f703af7d47be4b5c89bd6db740cb
[INFO] running `Command { std: "docker" "start" "-a" "9465fd01c461d0af9e77472d40e8d1939049f703af7d47be4b5c89bd6db740cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling prettyplease v0.1.25
[INFO] [stderr]    Compiling libc v0.2.161
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]    Compiling thiserror v1.0.65
[INFO] [stderr]    Compiling rustix v0.38.37
[INFO] [stderr]    Compiling aol v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]     Checking among v0.1.7
[INFO] [stderr]     Checking once_cell v1.20.2
[INFO] [stderr]     Checking fastrand v2.1.1
[INFO] [stderr]     Checking smol_str v0.3.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.85
[INFO] [stderr]     Checking cheap-clone v0.1.7
[INFO] [stderr]     Checking dbutils v0.9.0
[INFO] [stderr]     Checking memmap2 v0.9.5
[INFO] [stderr]     Checking tempfile v3.13.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.65
[INFO] [stderr]    Compiling derive_more-impl v1.0.0
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]    Compiling darling_macro v0.14.4
[INFO] [stderr]    Compiling darling v0.14.4
[INFO] [stderr]    Compiling derivit-core v0.1.5
[INFO] [stderr]    Compiling viewit v0.1.5
[INFO] [stderr]     Checking derive_more v1.0.0
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/impls.rs:18:79
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn encode(&self, _buf: &mut VacantBuffer<'_>) -> Result<usize, Self::Error> {
[INFO] [stdout]    |  _______________________________________________________________________________^
[INFO] [stdout] 19 | |     Ok(0)
[INFO] [stdout] 20 | |   }
[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, Infallible>
[INFO] [stdout]   --> src/impls.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Ok(0)
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, ()), Infallible>
[INFO] [stdout]   --> src/impls.rs:27:64
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn decode(_buf: &[u8]) -> Result<(usize, Self), Self::Error> {
[INFO] [stdout]    |  ________________________________________________________________^
[INFO] [stdout] 28 | |     Ok((0, ()))
[INFO] [stdout] 29 | |   }
[INFO] [stdout]    | |___^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, ()), Infallible>
[INFO] [stdout]   --> src/impls.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Ok((0, ()))
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aol` (lib) due to 4 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, Infallible>
[INFO] [stdout]   --> src/impls.rs:18:79
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn encode(&self, _buf: &mut VacantBuffer<'_>) -> Result<usize, Self::Error> {
[INFO] [stdout]    |  _______________________________________________________________________________^
[INFO] [stdout] 19 | |     Ok(0)
[INFO] [stdout] 20 | |   }
[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, Infallible>
[INFO] [stdout]   --> src/impls.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Ok(0)
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, ()), Infallible>
[INFO] [stdout]   --> src/impls.rs:27:64
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn decode(_buf: &[u8]) -> Result<(usize, Self), Self::Error> {
[INFO] [stdout]    |  ________________________________________________________________^
[INFO] [stdout] 28 | |     Ok((0, ()))
[INFO] [stdout] 29 | |   }
[INFO] [stdout]    | |___^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(usize, ()), Infallible>
[INFO] [stdout]   --> src/impls.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Ok((0, ()))
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aol` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "9465fd01c461d0af9e77472d40e8d1939049f703af7d47be4b5c89bd6db740cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9465fd01c461d0af9e77472d40e8d1939049f703af7d47be4b5c89bd6db740cb", kill_on_drop: false }`
[INFO] [stdout] 9465fd01c461d0af9e77472d40e8d1939049f703af7d47be4b5c89bd6db740cb