[INFO] fetching crate textparse 0.1.0...
[INFO] testing textparse-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate textparse 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate textparse 0.1.0
[INFO] finished tweaking crates.io crate textparse 0.1.0
[INFO] tweaked toml for crates.io crate textparse 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate textparse 0.1.0 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 textparse 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-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] fc107e20112bb99882214946927f81cf13222be2eca2b8808dd0063bc2fe2ca1
[INFO] running `Command { std: "docker" "start" "-a" "fc107e20112bb99882214946927f81cf13222be2eca2b8808dd0063bc2fe2ca1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc107e20112bb99882214946927f81cf13222be2eca2b8808dd0063bc2fe2ca1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc107e20112bb99882214946927f81cf13222be2eca2b8808dd0063bc2fe2ca1", kill_on_drop: false }`
[INFO] [stdout] fc107e20112bb99882214946927f81cf13222be2eca2b8808dd0063bc2fe2ca1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] cbd9896bb6e32929a346ac58eabbb26622665ccd31a0d9bbd73ca26343ecd8df
[INFO] running `Command { std: "docker" "start" "-a" "cbd9896bb6e32929a346ac58eabbb26622665ccd31a0d9bbd73ca26343ecd8df", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling serde v1.0.151
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling once_cell v1.16.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling toml v0.5.10
[INFO] [stderr]    Compiling proc-macro-crate v1.2.1
[INFO] [stderr]    Compiling textparse_derive v0.1.0
[INFO] [stderr]    Compiling textparse v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.19s
[INFO] running `Command { std: "docker" "inspect" "cbd9896bb6e32929a346ac58eabbb26622665ccd31a0d9bbd73ca26343ecd8df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbd9896bb6e32929a346ac58eabbb26622665ccd31a0d9bbd73ca26343ecd8df", kill_on_drop: false }`
[INFO] [stdout] cbd9896bb6e32929a346ac58eabbb26622665ccd31a0d9bbd73ca26343ecd8df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 9f701d909c98cb9cbf44048c024b3b24c4fe11d5d89475fa0693bc1e48cb4d2e
[INFO] running `Command { std: "docker" "start" "-a" "9f701d909c98cb9cbf44048c024b3b24c4fe11d5d89475fa0693bc1e48cb4d2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]    Compiling textparse v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]   --> examples/check_json.rs:38:30
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct JsonString(Char<'"'>, While<(Not<Char<'"'>>, AnyChar)>, Char<'"'>);
[INFO] [stdout]    |        ----------            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `JsonString` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 38 - struct JsonString(Char<'"'>, While<(Not<Char<'"'>>, AnyChar)>, Char<'"'>);
[INFO] [stdout] 38 + struct JsonString(Char<'"'>, (), Char<'"'>);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]   --> examples/check_json.rs:46:29
[INFO] [stdout]    |
[INFO] [stdout] 46 | struct JsonArray(Char<'['>, Csv<JsonValue>, Char<']'>);
[INFO] [stdout]    |        ---------            ^^^^^^^^^^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `JsonArray` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 46 - struct JsonArray(Char<'['>, Csv<JsonValue>, Char<']'>);
[INFO] [stdout] 46 + struct JsonArray(Char<'['>, (), Char<']'>);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]   --> examples/check_json.rs:50:30
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct JsonObject(Char<'{'>, Csv<JsonObjectItem>, Char<'}'>);
[INFO] [stdout]    |        ----------            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `JsonObject` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 50 - struct JsonObject(Char<'{'>, Csv<JsonObjectItem>, Char<'}'>);
[INFO] [stdout] 50 + struct JsonObject(Char<'{'>, (), Char<'}'>);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]   --> examples/check_json.rs:53:55
[INFO] [stdout]    |
[INFO] [stdout] 53 | struct JsonObjectItem(WithoutWhitespaces<JsonString>, Char<':'>, JsonValue);
[INFO] [stdout]    |        -------------- field in this struct            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `JsonObjectItem` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 53 - struct JsonObjectItem(WithoutWhitespaces<JsonString>, Char<':'>, JsonValue);
[INFO] [stdout] 53 + struct JsonObjectItem(WithoutWhitespaces<JsonString>, (), JsonValue);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.26s
[INFO] running `Command { std: "docker" "inspect" "9f701d909c98cb9cbf44048c024b3b24c4fe11d5d89475fa0693bc1e48cb4d2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f701d909c98cb9cbf44048c024b3b24c4fe11d5d89475fa0693bc1e48cb4d2e", kill_on_drop: false }`
[INFO] [stdout] 9f701d909c98cb9cbf44048c024b3b24c4fe11d5d89475fa0693bc1e48cb4d2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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", kill_on_drop: false }`
[INFO] [stdout] 521704bb76244c21d1e8635674186324556533820842ba86dd60ab6b973f8271
[INFO] running `Command { std: "docker" "start" "-a" "521704bb76244c21d1e8635674186324556533820842ba86dd60ab6b973f8271", kill_on_drop: false }`
[INFO] [stderr] warning: field `1` is never read
[INFO] [stderr]   --> examples/check_json.rs:38:30
[INFO] [stderr]    |
[INFO] [stderr] 38 | struct JsonString(Char<'"'>, While<(Not<Char<'"'>>, AnyChar)>, Char<'"'>);
[INFO] [stderr]    |        ----------            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |        |
[INFO] [stderr]    |        field in this struct
[INFO] [stderr]    |
[INFO] [stderr]    = note: `JsonString` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 38 - struct JsonString(Char<'"'>, While<(Not<Char<'"'>>, AnyChar)>, Char<'"'>);
[INFO] [stderr] 38 + struct JsonString(Char<'"'>, (), Char<'"'>);
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field `1` is never read
[INFO] [stderr]   --> examples/check_json.rs:46:29
[INFO] [stderr]    |
[INFO] [stderr] 46 | struct JsonArray(Char<'['>, Csv<JsonValue>, Char<']'>);
[INFO] [stderr]    |        ---------            ^^^^^^^^^^^^^^
[INFO] [stderr]    |        |
[INFO] [stderr]    |        field in this struct
[INFO] [stderr]    |
[INFO] [stderr]    = note: `JsonArray` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 46 - struct JsonArray(Char<'['>, Csv<JsonValue>, Char<']'>);
[INFO] [stderr] 46 + struct JsonArray(Char<'['>, (), Char<']'>);
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field `1` is never read
[INFO] [stderr]   --> examples/check_json.rs:50:30
[INFO] [stderr]    |
[INFO] [stderr] 50 | struct JsonObject(Char<'{'>, Csv<JsonObjectItem>, Char<'}'>);
[INFO] [stderr]    |        ----------            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |        |
[INFO] [stderr]    |        field in this struct
[INFO] [stderr]    |
[INFO] [stderr]    = note: `JsonObject` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 50 - struct JsonObject(Char<'{'>, Csv<JsonObjectItem>, Char<'}'>);
[INFO] [stderr] 50 + struct JsonObject(Char<'{'>, (), Char<'}'>);
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field `1` is never read
[INFO] [stderr]   --> examples/check_json.rs:53:55
[INFO] [stderr]    |
[INFO] [stderr] 53 | struct JsonObjectItem(WithoutWhitespaces<JsonString>, Char<':'>, JsonValue);
[INFO] [stderr]    |        -------------- field in this struct            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `JsonObjectItem` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 53 - struct JsonObjectItem(WithoutWhitespaces<JsonString>, Char<':'>, JsonValue);
[INFO] [stderr] 53 + struct JsonObjectItem(WithoutWhitespaces<JsonString>, (), JsonValue);
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `textparse` (example "check_json") generated 4 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/textparse-461fe6e038d4903f)
[INFO] [stderr]    Doc-tests textparse
[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] [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" "521704bb76244c21d1e8635674186324556533820842ba86dd60ab6b973f8271", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "521704bb76244c21d1e8635674186324556533820842ba86dd60ab6b973f8271", kill_on_drop: false }`
[INFO] [stdout] 521704bb76244c21d1e8635674186324556533820842ba86dd60ab6b973f8271
