[INFO] fetching crate json_serial 0.1.0...
[INFO] testing json_serial-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate json_serial 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate json_serial 0.1.0
[INFO] finished tweaking crates.io crate json_serial 0.1.0
[INFO] tweaked toml for crates.io crate json_serial 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate json_serial 0.1.0 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] crate crates.io crate json_serial 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-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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 2492414d5c0bef25c7e69b4fe05d88ea1f5d03f612e0b65a193f251fe7675714
[INFO] running `Command { std: "docker" "start" "-a" "2492414d5c0bef25c7e69b4fe05d88ea1f5d03f612e0b65a193f251fe7675714", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2492414d5c0bef25c7e69b4fe05d88ea1f5d03f612e0b65a193f251fe7675714", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2492414d5c0bef25c7e69b4fe05d88ea1f5d03f612e0b65a193f251fe7675714", kill_on_drop: false }`
[INFO] [stdout] 2492414d5c0bef25c7e69b4fe05d88ea1f5d03f612e0b65a193f251fe7675714
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f2d482b3013788ef71fd4e3987b71203222c72a88646418a33554afb4c54dcc1
[INFO] running `Command { std: "docker" "start" "-a" "f2d482b3013788ef71fd4e3987b71203222c72a88646418a33554afb4c54dcc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling json_serial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "f2d482b3013788ef71fd4e3987b71203222c72a88646418a33554afb4c54dcc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2d482b3013788ef71fd4e3987b71203222c72a88646418a33554afb4c54dcc1", kill_on_drop: false }`
[INFO] [stdout] f2d482b3013788ef71fd4e3987b71203222c72a88646418a33554afb4c54dcc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 276d75087918b1947e7cd91b9de772c1b48915536b6aaeb9d902bca9941b95ab
[INFO] running `Command { std: "docker" "start" "-a" "276d75087918b1947e7cd91b9de772c1b48915536b6aaeb9d902bca9941b95ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling json_serial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "276d75087918b1947e7cd91b9de772c1b48915536b6aaeb9d902bca9941b95ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "276d75087918b1947e7cd91b9de772c1b48915536b6aaeb9d902bca9941b95ab", kill_on_drop: false }`
[INFO] [stdout] 276d75087918b1947e7cd91b9de772c1b48915536b6aaeb9d902bca9941b95ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3184254b561a13392daca25605fa7b46fc1bfc1603df557f2f5ecca131d02bd6
[INFO] running `Command { std: "docker" "start" "-a" "3184254b561a13392daca25605fa7b46fc1bfc1603df557f2f5ecca131d02bd6", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/json_serial-d89aa4f7a83edcf9)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_from_json ... ok
[INFO] [stdout] test tests::test_macro ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests json_serial
[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" "3184254b561a13392daca25605fa7b46fc1bfc1603df557f2f5ecca131d02bd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3184254b561a13392daca25605fa7b46fc1bfc1603df557f2f5ecca131d02bd6", kill_on_drop: false }`
[INFO] [stdout] 3184254b561a13392daca25605fa7b46fc1bfc1603df557f2f5ecca131d02bd6