[INFO] fetching crate rings 0.2.0...
[INFO] checking rings-0.2.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate rings 0.2.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate rings 0.2.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rings 0.2.0
[INFO] finished tweaking crates.io crate rings 0.2.0
[INFO] tweaked toml for crates.io crate rings 0.2.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 45 packages
[INFO] [stderr]       Adding sauron v0.60.7 (latest: v0.61.0)
[INFO] [stderr]       Adding sauron-core v0.60.7 (latest: v0.61.2)
[INFO] [stderr]       Adding sauron-macro v0.60.7 (latest: v0.61.0)
[INFO] [stderr]       Adding serde-wasm-bindgen v0.5.0 (latest: v0.6.5)
[INFO] [stderr]       Adding siphasher v0.3.11 (latest: v1.0.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sauron v0.60.7
[INFO] [stderr]   Downloaded longest-increasing-subsequence v0.1.0
[INFO] [stderr]   Downloaded sauron-macro v0.60.7
[INFO] [stderr]   Downloaded mt-dom v0.59.2
[INFO] [stderr]   Downloaded sauron-core v0.60.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7744dc8a81994621c1b284d9cbcc0cd789a01d5d0f327aba9b0823d5350ec05
[INFO] running `Command { std: "docker" "start" "-a" "a7744dc8a81994621c1b284d9cbcc0cd789a01d5d0f327aba9b0823d5350ec05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7744dc8a81994621c1b284d9cbcc0cd789a01d5d0f327aba9b0823d5350ec05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7744dc8a81994621c1b284d9cbcc0cd789a01d5d0f327aba9b0823d5350ec05", kill_on_drop: false }`
[INFO] [stdout] a7744dc8a81994621c1b284d9cbcc0cd789a01d5d0f327aba9b0823d5350ec05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8907c4d11aceecb19845d2b44d5c7d838f786cedf133443d9fc05b26fd1feeb1
[INFO] running `Command { std: "docker" "start" "-a" "8907c4d11aceecb19845d2b44d5c7d838f786cedf133443d9fc05b26fd1feeb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.92
[INFO] [stderr]    Compiling bumpalo v3.15.4
[INFO] [stderr]    Compiling wasm-bindgen v0.2.92
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling longest-increasing-subsequence v0.1.0
[INFO] [stderr]    Compiling yansi v1.0.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling mt-dom v0.59.2
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.92
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling phf_macros v0.11.2
[INFO] [stderr]    Compiling syn_derive v0.1.8
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.92
[INFO] [stderr]    Compiling phf v0.11.2
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.92
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling rstml v0.11.2
[INFO] [stderr]     Checking js-sys v0.3.69
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.42
[INFO] [stderr]     Checking serde-wasm-bindgen v0.5.0
[INFO] [stderr]     Checking web-sys v0.3.69
[INFO] [stderr]     Checking sauron-core v0.60.7
[INFO] [stderr]    Compiling sauron-macro v0.60.7
[INFO] [stderr]     Checking sauron v0.60.7
[INFO] [stderr]     Checking rings v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.25s
[INFO] running `Command { std: "docker" "inspect" "8907c4d11aceecb19845d2b44d5c7d838f786cedf133443d9fc05b26fd1feeb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8907c4d11aceecb19845d2b44d5c7d838f786cedf133443d9fc05b26fd1feeb1", kill_on_drop: false }`
[INFO] [stdout] 8907c4d11aceecb19845d2b44d5c7d838f786cedf133443d9fc05b26fd1feeb1
[INFO] checking rings-0.2.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate rings 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate rings 0.2.0 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rings 0.2.0
[INFO] finished tweaking crates.io crate rings 0.2.0
[INFO] tweaked toml for crates.io crate rings 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ab52cfbdee9959af95bb2487401454aff76cbe90cc666eb39b5f5950c7283c7
[INFO] running `Command { std: "docker" "start" "-a" "8ab52cfbdee9959af95bb2487401454aff76cbe90cc666eb39b5f5950c7283c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ab52cfbdee9959af95bb2487401454aff76cbe90cc666eb39b5f5950c7283c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ab52cfbdee9959af95bb2487401454aff76cbe90cc666eb39b5f5950c7283c7", kill_on_drop: false }`
[INFO] [stdout] 8ab52cfbdee9959af95bb2487401454aff76cbe90cc666eb39b5f5950c7283c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bef335ae11a4e738c73b517471dd8234cde972772c7532699fb86b74a734ff8d
[INFO] running `Command { std: "docker" "start" "-a" "bef335ae11a4e738c73b517471dd8234cde972772c7532699fb86b74a734ff8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.92
[INFO] [stderr]    Compiling bumpalo v3.15.4
[INFO] [stderr]    Compiling wasm-bindgen v0.2.92
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling yansi v1.0.1
[INFO] [stderr]    Compiling longest-increasing-subsequence v0.1.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling mt-dom v0.59.2
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.92
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling phf_macros v0.11.2
[INFO] [stderr]    Compiling syn_derive v0.1.8
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.92
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/wasm-bindgen-macro-support-0.2.92/src/parser.rs:303:17
[INFO] [stdout]     |
[INFO] [stdout] 303 | /                 if input.parse::<Token![=]>().is_ok() {
[INFO] [stdout] 304 | |                     let ident = input.parse::<AnyIdent>()?.0;
[INFO] [stdout] 305 | |                     return Ok(BindgenAttr::$variant(attr_span, Some(ident)))
[INFO] [stdout] 306 | |                 } else {
[INFO] [stdout] 307 | |                     return Ok(BindgenAttr::$variant(attr_span, None));
[INFO] [stdout] 308 | |                 }
[INFO] [stdout]     | |_________________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 363 |           attrgen!(parsers);
[INFO] [stdout]     |           ----------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `parsers` which comes from the expansion of the macro `attrgen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling phf v0.11.2
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wasm-bindgen-macro-support` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "bef335ae11a4e738c73b517471dd8234cde972772c7532699fb86b74a734ff8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bef335ae11a4e738c73b517471dd8234cde972772c7532699fb86b74a734ff8d", kill_on_drop: false }`
[INFO] [stdout] bef335ae11a4e738c73b517471dd8234cde972772c7532699fb86b74a734ff8d