[INFO] fetching crate zvt_builder 0.1.0...
[INFO] checking zvt_builder-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate zvt_builder 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate zvt_builder 0.1.0
[INFO] finished tweaking crates.io crate zvt_builder 0.1.0
[INFO] tweaked toml for crates.io crate zvt_builder 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zvt_builder 0.1.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 36 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] cebe8d3b81b9179a41bfd92e92c8156f8bd3d3b5149db70b66c82d019a2d261d
[INFO] running `Command { std: "docker" "start" "-a" "cebe8d3b81b9179a41bfd92e92c8156f8bd3d3b5149db70b66c82d019a2d261d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cebe8d3b81b9179a41bfd92e92c8156f8bd3d3b5149db70b66c82d019a2d261d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cebe8d3b81b9179a41bfd92e92c8156f8bd3d3b5149db70b66c82d019a2d261d", kill_on_drop: false }`
[INFO] [stdout] cebe8d3b81b9179a41bfd92e92c8156f8bd3d3b5149db70b66c82d019a2d261d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] dc3ab30b8ab13bb2a2ecc0e36d9182c9e5868d0a78ccf05515d050bf12a2de88
[INFO] running `Command { std: "docker" "start" "-a" "dc3ab30b8ab13bb2a2ecc0e36d9182c9e5868d0a78ccf05515d050bf12a2de88", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]     Checking chrono v0.4.42
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling zvt_derive v0.1.0
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking yore v1.1.0
[INFO] [stderr]     Checking zvt_builder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `zvt_builder` (lib test) due to 1 previous error
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<u8>, Infallible>
[INFO] [stdout]   --> src/encoding.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |         res.try_into().unwrap()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<u8>, Infallible>
[INFO] [stdout]   --> src/encoding.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |         res.try_into().unwrap()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zvt_builder` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "dc3ab30b8ab13bb2a2ecc0e36d9182c9e5868d0a78ccf05515d050bf12a2de88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc3ab30b8ab13bb2a2ecc0e36d9182c9e5868d0a78ccf05515d050bf12a2de88", kill_on_drop: false }`
[INFO] [stdout] dc3ab30b8ab13bb2a2ecc0e36d9182c9e5868d0a78ccf05515d050bf12a2de88