[INFO] fetching crate json-book 0.1.1...
[INFO] testing json-book-0.1.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate json-book 0.1.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate json-book 0.1.1
[INFO] finished tweaking crates.io crate json-book 0.1.1
[INFO] tweaked toml for crates.io crate json-book 0.1.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate json-book 0.1.1 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] crate crates.io crate json-book 0.1.1 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-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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] dd8cb3900032436621e7fd2ddd8ece3b409dac05c37fc9e3a6a637ece5cc9bef
[INFO] running `Command { std: "docker" "start" "-a" "dd8cb3900032436621e7fd2ddd8ece3b409dac05c37fc9e3a6a637ece5cc9bef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd8cb3900032436621e7fd2ddd8ece3b409dac05c37fc9e3a6a637ece5cc9bef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd8cb3900032436621e7fd2ddd8ece3b409dac05c37fc9e3a6a637ece5cc9bef", kill_on_drop: false }`
[INFO] [stdout] dd8cb3900032436621e7fd2ddd8ece3b409dac05c37fc9e3a6a637ece5cc9bef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 1fabaf3683364e8b3788bcdf61993644b658754531985d415ac3ae6cc8ac74ed
[INFO] running `Command { std: "docker" "start" "-a" "1fabaf3683364e8b3788bcdf61993644b658754531985d415ac3ae6cc8ac74ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling percent-encoding v2.3.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling iana-time-zone v0.1.57
[INFO] [stderr]    Compiling form_urlencoded v1.2.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling idna v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling language-tags v0.3.2
[INFO] [stderr]    Compiling uuid v1.4.1
[INFO] [stderr]    Compiling chrono v0.4.31
[INFO] [stderr]    Compiling url v2.4.1
[INFO] [stderr]    Compiling json-book v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.63s
[INFO] running `Command { std: "docker" "inspect" "1fabaf3683364e8b3788bcdf61993644b658754531985d415ac3ae6cc8ac74ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fabaf3683364e8b3788bcdf61993644b658754531985d415ac3ae6cc8ac74ed", kill_on_drop: false }`
[INFO] [stdout] 1fabaf3683364e8b3788bcdf61993644b658754531985d415ac3ae6cc8ac74ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 12a5950562bd76a7c4be63b7c79ad6d175e06397f196e91b29237a6fa5322621
[INFO] running `Command { std: "docker" "start" "-a" "12a5950562bd76a7c4be63b7c79ad6d175e06397f196e91b29237a6fa5322621", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling memchr v2.6.3
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]    Compiling regex-syntax v0.7.5
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling fluent-uri v0.1.4
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stderr]    Compiling base64 v0.21.4
[INFO] [stderr]    Compiling aho-corasick v1.1.1
[INFO] [stderr]    Compiling quick-xml v0.30.0
[INFO] [stderr]    Compiling idna v0.4.0
[INFO] [stderr]    Compiling idna v0.3.0
[INFO] [stderr]    Compiling url v2.4.1
[INFO] [stderr]    Compiling json-book v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling regex-automata v0.3.8
[INFO] [stderr]    Compiling regex v1.9.5
[INFO] [stderr]    Compiling boon v0.5.1
[INFO] [stdout] error[E0599]: no function or associated item 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]    |                      ^^^^^^^^ function or associated item not found in `Book`
[INFO] [stdout]    |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]   --> /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/convert/mod.rs:592:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `fb2`
[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]    |               ^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               use of unresolved module or unlinked crate `fb2`
[INFO] [stdout]    |               help: a builtin type with a similar name exists: `f32`
[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] 
[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 `json-book` (example "deserialize_fb2") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "12a5950562bd76a7c4be63b7c79ad6d175e06397f196e91b29237a6fa5322621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12a5950562bd76a7c4be63b7c79ad6d175e06397f196e91b29237a6fa5322621", kill_on_drop: false }`
[INFO] [stdout] 12a5950562bd76a7c4be63b7c79ad6d175e06397f196e91b29237a6fa5322621