[INFO] fetching crate joydb 0.1.0...
[INFO] testing joydb-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate joydb 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate joydb 0.1.0
[INFO] finished tweaking crates.io crate joydb 0.1.0
[INFO] tweaked toml for crates.io crate joydb 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate joydb 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 joydb 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] b842d296a39c349e61d289b8407c0fb738991b43f42a9f2cb4adb1c6507dc783
[INFO] running `Command { std: "docker" "start" "-a" "b842d296a39c349e61d289b8407c0fb738991b43f42a9f2cb4adb1c6507dc783", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b842d296a39c349e61d289b8407c0fb738991b43f42a9f2cb4adb1c6507dc783", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b842d296a39c349e61d289b8407c0fb738991b43f42a9f2cb4adb1c6507dc783", kill_on_drop: false }`
[INFO] [stdout] b842d296a39c349e61d289b8407c0fb738991b43f42a9f2cb4adb1c6507dc783
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 38bd9996953a10b8fd5495e5f8b986148aed06311ff8895c3ca7e3430e6c94b5
[INFO] running `Command { std: "docker" "start" "-a" "38bd9996953a10b8fd5495e5f8b986148aed06311ff8895c3ca7e3430e6c94b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling joydb_macros v0.1.0
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling joydb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.77s
[INFO] running `Command { std: "docker" "inspect" "38bd9996953a10b8fd5495e5f8b986148aed06311ff8895c3ca7e3430e6c94b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38bd9996953a10b8fd5495e5f8b986148aed06311ff8895c3ca7e3430e6c94b5", kill_on_drop: false }`
[INFO] [stdout] 38bd9996953a10b8fd5495e5f8b986148aed06311ff8895c3ca7e3430e6c94b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] fff2903eb0556046cec8b83084b35957f87bf5d2e4c764558eb737f1539f9e70
[INFO] running `Command { std: "docker" "start" "-a" "fff2903eb0556046cec8b83084b35957f87bf5d2e4c764558eb737f1539f9e70", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling joydb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]    --> src/relation.rs:265:24
[INFO] [stdout]     |
[INFO] [stdout] 265 |             let json = serde_json::to_string(&relation).unwrap();
[INFO] [stdout]     |                        ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]    --> src/relation.rs:276:44
[INFO] [stdout]     |
[INFO] [stdout] 276 |             let relation: Relation<Post> = serde_json::from_str(json).unwrap();
[INFO] [stdout]     |                                            ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]    --> src/relation.rs:295:24
[INFO] [stdout]     |
[INFO] [stdout] 295 |             let json = serde_json::to_string(&original).unwrap();
[INFO] [stdout]     |                        ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]    --> src/relation.rs:296:48
[INFO] [stdout]     |
[INFO] [stdout] 296 |             let deserialized: Relation<Post> = serde_json::from_str(&json).unwrap();
[INFO] [stdout]     |                                                ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `joydb` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "fff2903eb0556046cec8b83084b35957f87bf5d2e4c764558eb737f1539f9e70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fff2903eb0556046cec8b83084b35957f87bf5d2e4c764558eb737f1539f9e70", kill_on_drop: false }`
[INFO] [stdout] fff2903eb0556046cec8b83084b35957f87bf5d2e4c764558eb737f1539f9e70