[INFO] cloning repository https://github.com/singlestore-labs/singlestoredb-extension-json-flatten
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/singlestore-labs/singlestoredb-extension-json-flatten" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsinglestore-labs%2Fsinglestoredb-extension-json-flatten", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsinglestore-labs%2Fsinglestoredb-extension-json-flatten'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4963ea74c2c01408d22bec3151cf7434bfb2f6e7
[INFO] checking singlestore-labs/singlestoredb-extension-json-flatten against try#6757d700f93f6d16c8b39cf79e96b019bd570e7d for pr-155299
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsinglestore-labs%2Fsinglestoredb-extension-json-flatten" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/singlestore-labs/singlestoredb-extension-json-flatten
[INFO] finished tweaking git repo https://github.com/singlestore-labs/singlestoredb-extension-json-flatten
[INFO] tweaked toml for git repo https://github.com/singlestore-labs/singlestoredb-extension-json-flatten written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/singlestore-labs/singlestoredb-extension-json-flatten on toolchain 6757d700f93f6d16c8b39cf79e96b019bd570e7d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6757d700f93f6d16c8b39cf79e96b019bd570e7d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/singlestore-labs/singlestoredb-extension-json-flatten 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" "+6757d700f93f6d16c8b39cf79e96b019bd570e7d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded indexmap v2.2.3
[INFO] [stderr]   Downloaded syn v2.0.50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+6757d700f93f6d16c8b39cf79e96b019bd570e7d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a766e9a8add8e0ad5c250c3ccef8d5f823c8629e4d7e3dd788e37a640119b68
[INFO] running `Command { std: "docker" "start" "-a" "6a766e9a8add8e0ad5c250c3ccef8d5f823c8629e4d7e3dd788e37a640119b68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a766e9a8add8e0ad5c250c3ccef8d5f823c8629e4d7e3dd788e37a640119b68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a766e9a8add8e0ad5c250c3ccef8d5f823c8629e4d7e3dd788e37a640119b68", kill_on_drop: false }`
[INFO] [stdout] 6a766e9a8add8e0ad5c250c3ccef8d5f823c8629e4d7e3dd788e37a640119b68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+6757d700f93f6d16c8b39cf79e96b019bd570e7d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75fc024ea9414703b56398c2f6312e5a85a94ec45ad021e5981b1daf87065f2c
[INFO] running `Command { std: "docker" "start" "-a" "75fc024ea9414703b56398c2f6312e5a85a94ec45ad021e5981b1daf87065f2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]    Compiling anyhow v1.0.80
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling id-arena v2.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling wit-bindgen-gen-rust-wasm v0.1.0 (https://github.com/bytecodealliance/wit-bindgen.git?rev=60e3c5b41e616fee239304d92128e117dd9be0a7#60e3c5b4)
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]    Compiling unicode-normalization v0.1.23
[INFO] [stderr]     Checking indexmap v2.2.3
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.50
[INFO] [stderr]    Compiling wit-parser v0.1.0 (https://github.com/bytecodealliance/wit-bindgen.git?rev=60e3c5b41e616fee239304d92128e117dd9be0a7#60e3c5b4)
[INFO] [stderr]    Compiling wit-bindgen-gen-core v0.1.0 (https://github.com/bytecodealliance/wit-bindgen.git?rev=60e3c5b41e616fee239304d92128e117dd9be0a7#60e3c5b4)
[INFO] [stderr]    Compiling wit-bindgen-gen-rust v0.1.0 (https://github.com/bytecodealliance/wit-bindgen.git?rev=60e3c5b41e616fee239304d92128e117dd9be0a7#60e3c5b4)
[INFO] [stderr]    Compiling wit-bindgen-rust-impl v0.1.0 (https://github.com/bytecodealliance/wit-bindgen.git?rev=60e3c5b41e616fee239304d92128e117dd9be0a7#60e3c5b4)
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking wit-bindgen-rust v0.1.0 (https://github.com/bytecodealliance/wit-bindgen.git?rev=60e3c5b41e616fee239304d92128e117dd9be0a7#60e3c5b4)
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking jsonpath_lib v0.3.0
[INFO] [stderr]     Checking json_flatten v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `JsonNV` is never constructed
[INFO] [stdout]   --> src/lib.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct JsonNV {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `JsonNV` is never constructed
[INFO] [stdout]   --> src/lib.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct JsonNV {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.57s
[INFO] running `Command { std: "docker" "inspect" "75fc024ea9414703b56398c2f6312e5a85a94ec45ad021e5981b1daf87065f2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75fc024ea9414703b56398c2f6312e5a85a94ec45ad021e5981b1daf87065f2c", kill_on_drop: false }`
[INFO] [stdout] 75fc024ea9414703b56398c2f6312e5a85a94ec45ad021e5981b1daf87065f2c