[INFO] fetching crate fuel-streams-subject 0.0.29...
[INFO] checking fuel-streams-subject-0.0.29 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate fuel-streams-subject 0.0.29 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate fuel-streams-subject 0.0.29
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate fuel-streams-subject 0.0.29
[INFO] tweaked toml for crates.io crate fuel-streams-subject 0.0.29 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fuel-streams-subject 0.0.29 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 fuel-streams-subject 0.0.29 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] be2610d5b219ae6d3fce8c3cafd39cf756cf84aff7b0fc0e7dacb1961c5dec21
[INFO] running `Command { std: "docker" "start" "-a" "be2610d5b219ae6d3fce8c3cafd39cf756cf84aff7b0fc0e7dacb1961c5dec21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be2610d5b219ae6d3fce8c3cafd39cf756cf84aff7b0fc0e7dacb1961c5dec21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be2610d5b219ae6d3fce8c3cafd39cf756cf84aff7b0fc0e7dacb1961c5dec21", kill_on_drop: false }`
[INFO] [stdout] be2610d5b219ae6d3fce8c3cafd39cf756cf84aff7b0fc0e7dacb1961c5dec21
[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] e636157e364d2491873b2cce39bc5d3dcbd9cac9b6ec362875795cab67219d81
[INFO] running `Command { std: "docker" "start" "-a" "e636157e364d2491873b2cce39bc5d3dcbd9cac9b6ec362875795cab67219d81", kill_on_drop: false }`
[INFO] [stderr]     Checking downcast-rs v2.0.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling test-case-core v3.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling subject-derive v0.0.29
[INFO] [stderr]    Compiling test-case-macros v3.3.1
[INFO] [stderr]     Checking test-case v3.3.1
[INFO] [stderr]     Checking thiserror v2.0.12
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking indexmap v2.8.0
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking fuel-streams-subject v0.0.29 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]  --> tests/subject-derive.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Subject, Debug, Clone, Default, Serialize, Deserialize)]
[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 derive macro `Subject` (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<std::string::String, Infallible>
[INFO] [stdout]    --> tests/subject-derive.rs:259:14
[INFO] [stdout]     |
[INFO] [stdout] 259 |     #[derive(Subject, Debug, Clone, Default, Serialize, Deserialize)]
[INFO] [stdout]     |              ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the derive macro `Subject` (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<std::string::String, Infallible>
[INFO] [stdout]    --> tests/subject-derive.rs:306:14
[INFO] [stdout]     |
[INFO] [stdout] 306 |     #[derive(Subject, Debug, Clone, Default, Serialize, Deserialize)]
[INFO] [stdout]     |              ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the derive macro `Subject` (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<std::string::String, Infallible>
[INFO] [stdout]    --> tests/subject-derive.rs:370:14
[INFO] [stdout]     |
[INFO] [stdout] 370 |     #[derive(Subject, Debug, Clone, Default, Serialize, Deserialize)]
[INFO] [stdout]     |              ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the derive macro `Subject` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fuel-streams-subject` (test "subject-derive") due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "e636157e364d2491873b2cce39bc5d3dcbd9cac9b6ec362875795cab67219d81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e636157e364d2491873b2cce39bc5d3dcbd9cac9b6ec362875795cab67219d81", kill_on_drop: false }`
[INFO] [stdout] e636157e364d2491873b2cce39bc5d3dcbd9cac9b6ec362875795cab67219d81