[INFO] fetching crate perl-dap-variables 0.12.2...
[INFO] testing perl-dap-variables-0.12.2 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate perl-dap-variables 0.12.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate perl-dap-variables 0.12.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate perl-dap-variables 0.12.2
[INFO] tweaked toml for crates.io crate perl-dap-variables 0.12.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate perl-dap-variables 0.12.2 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 perl-dap-variables 0.12.2 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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 409afd6c0cc4955fcd41509de3b61bdc4f7b01e36f82afdaf04b7685dd9bd745
[INFO] running `Command { std: "docker" "start" "-a" "409afd6c0cc4955fcd41509de3b61bdc4f7b01e36f82afdaf04b7685dd9bd745", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "409afd6c0cc4955fcd41509de3b61bdc4f7b01e36f82afdaf04b7685dd9bd745", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "409afd6c0cc4955fcd41509de3b61bdc4f7b01e36f82afdaf04b7685dd9bd745", kill_on_drop: false }`
[INFO] [stdout] 409afd6c0cc4955fcd41509de3b61bdc4f7b01e36f82afdaf04b7685dd9bd745
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 658bb4332ff596ba110ee806a45b21b7746c00cad6dc4bc0467d0e0747b31147
[INFO] running `Command { std: "docker" "start" "-a" "658bb4332ff596ba110ee806a45b21b7746c00cad6dc4bc0467d0e0747b31147", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling perl-dap-value v0.12.2
[INFO] [stderr]    Compiling perl-dap-variables v0.12.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.04s
[INFO] running `Command { std: "docker" "inspect" "658bb4332ff596ba110ee806a45b21b7746c00cad6dc4bc0467d0e0747b31147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "658bb4332ff596ba110ee806a45b21b7746c00cad6dc4bc0467d0e0747b31147", kill_on_drop: false }`
[INFO] [stdout] 658bb4332ff596ba110ee806a45b21b7746c00cad6dc4bc0467d0e0747b31147
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb4e675dd9e72c138c0fb8c6ed52c481d4037c374f161a1274cc22070f8ccf44
[INFO] running `Command { std: "docker" "start" "-a" "cb4e675dd9e72c138c0fb8c6ed52c481d4037c374f161a1274cc22070f8ccf44", kill_on_drop: false }`
[INFO] [stderr]    Compiling perl-dap-variables v0.12.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `serde_json`
[INFO] [stdout]     --> tests/extended_unit_tests.rs:1125:9
[INFO] [stdout]      |
[INFO] [stdout] 1125 |     use serde_json;
[INFO] [stdout]      |         ^^^^^^^^^^ no external crate `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `serde_json`
[INFO] [stdout]     --> tests/extended_unit_tests.rs:1174:9
[INFO] [stdout]      |
[INFO] [stdout] 1174 |     use serde_json;
[INFO] [stdout]      |         ^^^^^^^^^^ no external crate `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `serde_json`
[INFO] [stdout]     --> tests/extended_unit_tests.rs:1235:9
[INFO] [stdout]      |
[INFO] [stdout] 1235 |     use serde_json;
[INFO] [stdout]      |         ^^^^^^^^^^ no external crate `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `perl_tdd_support`
[INFO] [stdout]  --> tests/comprehensive.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use perl_tdd_support::{must, must_err};
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `perl_tdd_support`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `perl_tdd_support`, use `cargo add perl_tdd_support` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> tests/comprehensive.rs:194:20
[INFO] [stdout]     |
[INFO] [stdout] 194 |         let json = serde_json::to_string(val)?;
[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]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> tests/comprehensive.rs:195:39
[INFO] [stdout]     |
[INFO] [stdout] 195 |         let deserialized: PerlValue = serde_json::from_str(&json)?;
[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 E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `perl-dap-variables` (test "extended_unit_tests") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> tests/comprehensive.rs:856:16
[INFO] [stdout]     |
[INFO] [stdout] 856 |     let json = serde_json::to_string(&rv)?;
[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]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> tests/comprehensive.rs:857:42
[INFO] [stdout]     |
[INFO] [stdout] 857 |     let deserialized: RenderedVariable = serde_json::from_str(&json)?;
[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]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> tests/comprehensive.rs:865:16
[INFO] [stdout]     |
[INFO] [stdout] 865 |     let json = serde_json::to_string(&rv)?;
[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]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> tests/comprehensive.rs:880:16
[INFO] [stdout]     |
[INFO] [stdout] 880 |     let json = serde_json::to_string(&rv)?;
[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]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> tests/comprehensive.rs:889:16
[INFO] [stdout]     |
[INFO] [stdout] 889 |     let json = serde_json::to_string(&rv)?;
[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] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `perl-dap-variables` (test "comprehensive") due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "cb4e675dd9e72c138c0fb8c6ed52c481d4037c374f161a1274cc22070f8ccf44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb4e675dd9e72c138c0fb8c6ed52c481d4037c374f161a1274cc22070f8ccf44", kill_on_drop: false }`
[INFO] [stdout] cb4e675dd9e72c138c0fb8c6ed52c481d4037c374f161a1274cc22070f8ccf44
