[INFO] fetching crate nachricht-serde 0.4.0...
[INFO] testing nachricht-serde-0.4.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate nachricht-serde 0.4.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate nachricht-serde 0.4.0
[INFO] finished tweaking crates.io crate nachricht-serde 0.4.0
[INFO] tweaked toml for crates.io crate nachricht-serde 0.4.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nachricht-serde 0.4.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a78e5d50a1091770855c20758bc17ca81028c2686a8e457dc5c630022535202
[INFO] running `Command { std: "docker" "start" "-a" "3a78e5d50a1091770855c20758bc17ca81028c2686a8e457dc5c630022535202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a78e5d50a1091770855c20758bc17ca81028c2686a8e457dc5c630022535202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a78e5d50a1091770855c20758bc17ca81028c2686a8e457dc5c630022535202", kill_on_drop: false }`
[INFO] [stdout] 3a78e5d50a1091770855c20758bc17ca81028c2686a8e457dc5c630022535202
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca4658a5d226f39cf701b9de86fdc6732bf25cae048f4794a0bb9c1fed0da57a
[INFO] running `Command { std: "docker" "start" "-a" "ca4658a5d226f39cf701b9de86fdc6732bf25cae048f4794a0bb9c1fed0da57a", kill_on_drop: false }`
[INFO] [stderr]    Compiling nachricht v0.4.0
[INFO] [stderr]    Compiling nachricht-serde v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "ca4658a5d226f39cf701b9de86fdc6732bf25cae048f4794a0bb9c1fed0da57a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca4658a5d226f39cf701b9de86fdc6732bf25cae048f4794a0bb9c1fed0da57a", kill_on_drop: false }`
[INFO] [stdout] ca4658a5d226f39cf701b9de86fdc6732bf25cae048f4794a0bb9c1fed0da57a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 785db43b973a1b3dfbaf5ba4b7e0ec70172cef6804edd2b35ac8cf73db2d3bcc
[INFO] running `Command { std: "docker" "start" "-a" "785db43b973a1b3dfbaf5ba4b7e0ec70172cef6804edd2b35ac8cf73db2d3bcc", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling serde_bytes v0.11.19
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling nachricht-serde v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `TupleStruct` is never constructed
[INFO] [stdout]    --> src/lib.rs:162:12
[INFO] [stdout]     |
[INFO] [stdout] 162 |     struct TupleStruct(char, char, char);
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 10.19s
[INFO] running `Command { std: "docker" "inspect" "785db43b973a1b3dfbaf5ba4b7e0ec70172cef6804edd2b35ac8cf73db2d3bcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "785db43b973a1b3dfbaf5ba4b7e0ec70172cef6804edd2b35ac8cf73db2d3bcc", kill_on_drop: false }`
[INFO] [stdout] 785db43b973a1b3dfbaf5ba4b7e0ec70172cef6804edd2b35ac8cf73db2d3bcc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e84317595ec9372adb6b58b55580b3f6ec5bf2103beee6a759c56c7728984b2d
[INFO] running `Command { std: "docker" "start" "-a" "e84317595ec9372adb6b58b55580b3f6ec5bf2103beee6a759c56c7728984b2d", kill_on_drop: false }`
[INFO] [stderr] warning: struct `TupleStruct` is never constructed
[INFO] [stderr]    --> src/lib.rs:162:12
[INFO] [stderr]     |
[INFO] [stderr] 162 |     struct TupleStruct(char, char, char);
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `nachricht-serde` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/nachricht_serde-cc53d0274ad03507)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::roundtrip ... ok
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests nachricht_serde
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 19) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.42s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e84317595ec9372adb6b58b55580b3f6ec5bf2103beee6a759c56c7728984b2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e84317595ec9372adb6b58b55580b3f6ec5bf2103beee6a759c56c7728984b2d", kill_on_drop: false }`
[INFO] [stdout] e84317595ec9372adb6b58b55580b3f6ec5bf2103beee6a759c56c7728984b2d