[INFO] fetching crate js-regexp 0.2.1...
[INFO] checking js-regexp-0.2.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate js-regexp 0.2.1 into /workspace/builds/worker-4-tc2/source
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate js-regexp 0.2.1
[INFO] finished tweaking crates.io crate js-regexp 0.2.1
[INFO] tweaked toml for crates.io crate js-regexp 0.2.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate js-regexp 0.2.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 36 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de654e06b2934911291042a7a5bbe375d8ea0e5ebe41ea16aab98190dc79fd6d
[INFO] running `Command { std: "docker" "start" "-a" "de654e06b2934911291042a7a5bbe375d8ea0e5ebe41ea16aab98190dc79fd6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de654e06b2934911291042a7a5bbe375d8ea0e5ebe41ea16aab98190dc79fd6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de654e06b2934911291042a7a5bbe375d8ea0e5ebe41ea16aab98190dc79fd6d", kill_on_drop: false }`
[INFO] [stdout] de654e06b2934911291042a7a5bbe375d8ea0e5ebe41ea16aab98190dc79fd6d
[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=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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36411722bf5f25ce4f66d0f36e621cbb8b649afc3ec79751334ed03d7e9bfa54
[INFO] running `Command { std: "docker" "start" "-a" "36411722bf5f25ce4f66d0f36e621cbb8b649afc3ec79751334ed03d7e9bfa54", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.100
[INFO] [stderr]    Compiling bumpalo v3.19.0
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling rustversion v1.0.21
[INFO] [stderr]    Compiling wasm-bindgen v0.2.100
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.100
[INFO] [stderr]    Compiling js-regexp-macros v0.2.1
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.50
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.100
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.100
[INFO] [stderr]     Checking js-sys v0.3.77
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.50
[INFO] [stderr]     Checking js-regexp v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.50
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:186:16
[INFO] [stdout]     |
[INFO] [stdout] 186 |     JavaScript(JsValue),
[INFO] [stdout]     |     ---------- ^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `JsError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` 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] 186 -     JavaScript(JsValue),
[INFO] [stdout] 186 +     JavaScript(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:186:16
[INFO] [stdout]     |
[INFO] [stdout] 186 |     JavaScript(JsValue),
[INFO] [stdout]     |     ---------- ^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `JsError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` 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] 186 -     JavaScript(JsValue),
[INFO] [stdout] 186 +     JavaScript(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_flags` is never used
[INFO] [stdout]    --> src/lib.rs:531:8
[INFO] [stdout]     |
[INFO] [stdout] 531 |     fn test_flags() {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_count_bytes_from_utf16_units` is never used
[INFO] [stdout]    --> src/lib.rs:550:8
[INFO] [stdout]     |
[INFO] [stdout] 550 |     fn test_count_bytes_from_utf16_units() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_slice_capture` is never used
[INFO] [stdout]    --> src/lib.rs:564:8
[INFO] [stdout]     |
[INFO] [stdout] 564 |     fn test_slice_capture() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_find_js_string` is never used
[INFO] [stdout]    --> src/lib.rs:576:8
[INFO] [stdout]     |
[INFO] [stdout] 576 |     fn test_find_js_string() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestIter` is never constructed
[INFO] [stdout]   --> tests/regexp.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct TestIter {}
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.17s
[INFO] running `Command { std: "docker" "inspect" "36411722bf5f25ce4f66d0f36e621cbb8b649afc3ec79751334ed03d7e9bfa54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36411722bf5f25ce4f66d0f36e621cbb8b649afc3ec79751334ed03d7e9bfa54", kill_on_drop: false }`
[INFO] [stdout] 36411722bf5f25ce4f66d0f36e621cbb8b649afc3ec79751334ed03d7e9bfa54