[INFO] fetching crate protobook 0.1.0...
[INFO] testing protobook-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate protobook 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate protobook 0.1.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate protobook 0.1.0
[INFO] tweaked toml for crates.io crate protobook 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate protobook 0.1.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate protobook 0.1.0 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" "+beta-2026-04-21" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd119095d25f60b90c0eaa815c3d2136ccf24d4e0a087684715ced99344db795
[INFO] running `Command { std: "docker" "start" "-a" "fd119095d25f60b90c0eaa815c3d2136ccf24d4e0a087684715ced99344db795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd119095d25f60b90c0eaa815c3d2136ccf24d4e0a087684715ced99344db795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd119095d25f60b90c0eaa815c3d2136ccf24d4e0a087684715ced99344db795", kill_on_drop: false }`
[INFO] [stdout] fd119095d25f60b90c0eaa815c3d2136ccf24d4e0a087684715ced99344db795
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05fe7378eb3cde50a70ab677bd3cedbdda88e7187e70084d148012c7cd7af177
[INFO] running `Command { std: "docker" "start" "-a" "05fe7378eb3cde50a70ab677bd3cedbdda88e7187e70084d148012c7cd7af177", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling bytes v1.6.1
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling prettyplease v0.2.20
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling fastrand v2.1.0
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling multimap v0.10.0
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]    Compiling tempfile v3.10.1
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling regex v1.10.5
[INFO] [stderr]    Compiling prost-derive v0.13.1
[INFO] [stderr]    Compiling prost v0.13.1
[INFO] [stderr]    Compiling prost-types v0.13.1
[INFO] [stderr]    Compiling prost-build v0.13.1
[INFO] [stderr]    Compiling protobook v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.07s
[INFO] running `Command { std: "docker" "inspect" "05fe7378eb3cde50a70ab677bd3cedbdda88e7187e70084d148012c7cd7af177", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05fe7378eb3cde50a70ab677bd3cedbdda88e7187e70084d148012c7cd7af177", kill_on_drop: false }`
[INFO] [stdout] 05fe7378eb3cde50a70ab677bd3cedbdda88e7187e70084d148012c7cd7af177
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a8fc4570c5ae6d5c0c6899e6ecd768628cbe28e117cb9682f6ce91f324c7eec
[INFO] running `Command { std: "docker" "start" "-a" "8a8fc4570c5ae6d5c0c6899e6ecd768628cbe28e117cb9682f6ce91f324c7eec", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling tempfile v3.10.1
[INFO] [stderr]    Compiling prost-build v0.13.1
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling uuid v1.10.0
[INFO] [stderr]    Compiling protobook v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quick-xml v0.36.1
[INFO] [stdout] error[E0599]: no associated function or constant named `from_fb2` found for struct `Book` in the current scope
[INFO] [stdout]   --> tests/deserialize_fb2.rs:19:22
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let book = Book::from_fb2(book, book_id, &binary_ids);
[INFO] [stdout]    |                      ^^^^^^^^ associated function or constant not found in `Book`
[INFO] [stdout]    |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]   --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/convert/mod.rs:592:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `fb2` in this scope
[INFO] [stdout]   --> tests/deserialize_fb2.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let book: fb2::FictionBook = quick_xml::de::from_reader(reader).unwrap();
[INFO] [stdout]    |               ^^^ use of unresolved module or unlinked crate `fb2`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `fb2`, use `cargo add fb2` to add it to your `Cargo.toml`
[INFO] [stdout] help: a builtin type with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 12 -     let book: fb2::FictionBook = quick_xml::de::from_reader(reader).unwrap();
[INFO] [stdout] 12 +     let book: f32::FictionBook = quick_xml::de::from_reader(reader).unwrap();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `protobook` (test "deserialize_fb2") due to 2 previous errors
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no associated function or constant named `from_fb2` found for struct `Book` in the current scope
[INFO] [stdout]   --> examples/deserialize_fb2.rs:18:22
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let book = Book::from_fb2(book, book_id, &binary_ids);
[INFO] [stdout]    |                      ^^^^^^^^ associated function or constant not found in `Book`
[INFO] [stdout]    |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]   --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/convert/mod.rs:592:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `fb2` in this scope
[INFO] [stdout]   --> examples/deserialize_fb2.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let book: fb2::FictionBook = quick_xml::de::from_reader(reader).unwrap();
[INFO] [stdout]    |               ^^^ use of unresolved module or unlinked crate `fb2`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `fb2`, use `cargo add fb2` to add it to your `Cargo.toml`
[INFO] [stdout] help: a builtin type with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 11 -     let book: fb2::FictionBook = quick_xml::de::from_reader(reader).unwrap();
[INFO] [stdout] 11 +     let book: f32::FictionBook = quick_xml::de::from_reader(reader).unwrap();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `protobook` (example "deserialize_fb2") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "8a8fc4570c5ae6d5c0c6899e6ecd768628cbe28e117cb9682f6ce91f324c7eec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a8fc4570c5ae6d5c0c6899e6ecd768628cbe28e117cb9682f6ce91f324c7eec", kill_on_drop: false }`
[INFO] [stdout] 8a8fc4570c5ae6d5c0c6899e6ecd768628cbe28e117cb9682f6ce91f324c7eec
