[INFO] fetching crate vmks-exam-generator 1.3.1...
[INFO] testing vmks-exam-generator-1.3.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate vmks-exam-generator 1.3.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate vmks-exam-generator 1.3.1
[INFO] finished tweaking crates.io crate vmks-exam-generator 1.3.1
[INFO] tweaked toml for crates.io crate vmks-exam-generator 1.3.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vmks-exam-generator 1.3.1 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 vmks-exam-generator 1.3.1 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 8580a2c1a5ff6b8064fe84519222fbc53cad25cdfc30982cb43eec814d683449
[INFO] running `Command { std: "docker" "start" "-a" "8580a2c1a5ff6b8064fe84519222fbc53cad25cdfc30982cb43eec814d683449", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8580a2c1a5ff6b8064fe84519222fbc53cad25cdfc30982cb43eec814d683449", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8580a2c1a5ff6b8064fe84519222fbc53cad25cdfc30982cb43eec814d683449", kill_on_drop: false }`
[INFO] [stdout] 8580a2c1a5ff6b8064fe84519222fbc53cad25cdfc30982cb43eec814d683449
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3cdf468702d7c90a8029245e172b9598d7b4ce0d729299abe1360ad5173e3c01
[INFO] running `Command { std: "docker" "start" "-a" "3cdf468702d7c90a8029245e172b9598d7b4ce0d729299abe1360ad5173e3c01", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling gimli v0.26.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling anstyle v1.0.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling clap_lex v0.6.0
[INFO] [stderr]    Compiling miniz_oxide v0.5.4
[INFO] [stderr]    Compiling xml-rs v0.8.19
[INFO] [stderr]    Compiling anstream v0.6.7
[INFO] [stderr]    Compiling object v0.29.0
[INFO] [stderr]    Compiling clap_builder v4.4.16
[INFO] [stderr]    Compiling backtrace v0.3.66
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling clap v4.4.16
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling latex v0.3.1
[INFO] [stderr]    Compiling vmks-exam-generator v1.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.48s
[INFO] running `Command { std: "docker" "inspect" "3cdf468702d7c90a8029245e172b9598d7b4ce0d729299abe1360ad5173e3c01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cdf468702d7c90a8029245e172b9598d7b4ce0d729299abe1360ad5173e3c01", kill_on_drop: false }`
[INFO] [stdout] 3cdf468702d7c90a8029245e172b9598d7b4ce0d729299abe1360ad5173e3c01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 7f481879885085138cefe25bf63f141ad8ac782f30ba63ec518d617a9bee5854
[INFO] running `Command { std: "docker" "start" "-a" "7f481879885085138cefe25bf63f141ad8ac782f30ba63ec518d617a9bee5854", kill_on_drop: false }`
[INFO] [stderr]    Compiling vmks-exam-generator v1.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "7f481879885085138cefe25bf63f141ad8ac782f30ba63ec518d617a9bee5854", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f481879885085138cefe25bf63f141ad8ac782f30ba63ec518d617a9bee5854", kill_on_drop: false }`
[INFO] [stdout] 7f481879885085138cefe25bf63f141ad8ac782f30ba63ec518d617a9bee5854
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 6d7cbd5411d7b1b2995f54726e70f2bd5cec43148c47491bf82af0b021bacc3a
[INFO] running `Command { std: "docker" "start" "-a" "6d7cbd5411d7b1b2995f54726e70f2bd5cec43148c47491bf82af0b021bacc3a", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/vmks_exam_generator-2a811a4e285871e4)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test helpers::tests::escape_latex ... ok
[INFO] [stdout] test helpers::tests::escape_plain ... ok
[INFO] [stdout] test question_bank::tests::invalid_pick_value ... ok
[INFO] [stdout] test question_bank::tests::invalid_shuffle_value ... ok
[INFO] [stdout] test question_bank::tests::multiple_choice_question_txt ... ok
[INFO] [stdout] test question_bank::tests::unexpected_tag ... ok
[INFO] [stdout] test question_bank::tests::replacements_latex ... ok
[INFO] [stdout] test question_bank::tests::variable_question_latex ... ok
[INFO] [stdout] test question_bank::tests::replacements_txt ... ok
[INFO] [stdout] test question_bank::tests::nested_variable_questions ... ok
[INFO] [stdout] test question_bank::tests::unexpected_text ... ok
[INFO] [stdout] test question_bank::tests::pick_too_many ... ok
[INFO] [stdout] test question_bank::tests::unexpected_attribute ... ok
[INFO] [stdout] test question_bank::tests::variable_question_txt ... ok
[INFO] [stdout] test question_bank::tests::multiple_choice_question_latex ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/vmks_exam_generator-209e5419688b12df)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests vmks_exam_generator
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6d7cbd5411d7b1b2995f54726e70f2bd5cec43148c47491bf82af0b021bacc3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d7cbd5411d7b1b2995f54726e70f2bd5cec43148c47491bf82af0b021bacc3a", kill_on_drop: false }`
[INFO] [stdout] 6d7cbd5411d7b1b2995f54726e70f2bd5cec43148c47491bf82af0b021bacc3a