[INFO] fetching crate perl-dap-variables 0.12.2...
[INFO] fixing perl-dap-variables-0.12.2 against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] extracting crate perl-dap-variables 0.12.2 into /workspace/builds/worker-4-tc1/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-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate perl-dap-variables 0.12.2 on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded perl-dap-value v0.12.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] e7e4840a4866b0159e43fae45a500de6c6766df251360861d32ab96e4cc48578
[INFO] running `Command { std: "docker" "start" "e7e4840a4866b0159e43fae45a500de6c6766df251360861d32ab96e4cc48578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e7e4840a4866b0159e43fae45a500de6c6766df251360861d32ab96e4cc48578" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7e4840a4866b0159e43fae45a500de6c6766df251360861d32ab96e4cc48578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e7e4840a4866b0159e43fae45a500de6c6766df251360861d32ab96e4cc48578" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]     Checking perl-dap-value v0.12.2
[INFO] [stderr]     Checking perl-dap-variables v0.12.2 (/opt/rustwide/workdir)
[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[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[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] 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] 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] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `perl-dap-variables` (test "comprehensive") due to 8 previous errors
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e7e4840a4866b0159e43fae45a500de6c6766df251360861d32ab96e4cc48578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7e4840a4866b0159e43fae45a500de6c6766df251360861d32ab96e4cc48578", kill_on_drop: false }`
[INFO] [stdout] e7e4840a4866b0159e43fae45a500de6c6766df251360861d32ab96e4cc48578
