[INFO] cloning repository https://github.com/ZetaNumbers/moxie-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ZetaNumbers/moxie-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZetaNumbers%2Fmoxie-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZetaNumbers%2Fmoxie-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d9eab91d21e15b1a026b4c11724fe66062b76e49
[INFO] checking ZetaNumbers/moxie-playground against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZetaNumbers%2Fmoxie-playground" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ZetaNumbers/moxie-playground 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 git repo https://github.com/ZetaNumbers/moxie-playground
[INFO] finished tweaking git repo https://github.com/ZetaNumbers/moxie-playground
[INFO] tweaked toml for git repo https://github.com/ZetaNumbers/moxie-playground written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ZetaNumbers/moxie-playground 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/anp/moxie.git`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hash_hasher v2.0.3
[INFO] [stderr]   Downloaded quick-xml v0.20.0
[INFO] [stderr]   Downloaded syn-rsx v0.8.0-beta.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 341ddf241e42294931a1475901236d5402300b621a244172a4cb50e26eca83cd
[INFO] running `Command { std: "docker" "start" "-a" "341ddf241e42294931a1475901236d5402300b621a244172a4cb50e26eca83cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "341ddf241e42294931a1475901236d5402300b621a244172a4cb50e26eca83cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "341ddf241e42294931a1475901236d5402300b621a244172a4cb50e26eca83cd", kill_on_drop: false }`
[INFO] [stdout] 341ddf241e42294931a1475901236d5402300b621a244172a4cb50e26eca83cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ae150fef1585d7d588d669e8a4914b926547e43e88c2e32ec25c7e4c6d235b24
[INFO] running `Command { std: "docker" "start" "-a" "ae150fef1585d7d588d669e8a4914b926547e43e88c2e32ec25c7e4c6d235b24", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.69
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling bumpalo v3.4.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.69
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling paste v1.0.4
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking futures-sink v0.3.9
[INFO] [stderr]     Checking futures-core v0.3.9
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking futures-task v0.3.9
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-channel v0.3.9
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking futures-io v0.3.9
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking hash_hasher v2.0.3
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking quick-xml v0.20.0
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking num-traits v0.2.14
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.69
[INFO] [stderr]    Compiling syn-rsx v0.8.0-beta.2
[INFO] [stderr]    Compiling futures-macro v0.3.9
[INFO] [stderr]    Compiling illicit-macro v1.0.0 (https://github.com/anp/moxie.git?branch=main#03217078)
[INFO] [stderr]    Compiling topo-macro v0.10.0 (https://github.com/anp/moxie.git?branch=main#03217078)
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling moxie-macros v0.1.0-pre (https://github.com/anp/moxie.git?branch=main#03217078)
[INFO] [stderr]    Compiling mox-impl v0.11.0 (https://github.com/anp/moxie.git?branch=main#03217078)
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.69
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.69
[INFO] [stderr]     Checking illicit v1.1.1 (https://github.com/anp/moxie.git?branch=main#03217078)
[INFO] [stderr]     Checking dyn-cache v0.12.1 (https://github.com/anp/moxie.git?branch=main#03217078)
[INFO] [stderr]     Checking futures-util v0.3.9
[INFO] [stderr]     Checking topo v0.13.1 (https://github.com/anp/moxie.git?branch=main#03217078)
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]     Checking mox v0.11.0 (https://github.com/anp/moxie.git?branch=main#03217078)
[INFO] [stderr]     Checking js-sys v0.3.46
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]     Checking futures-executor v0.3.9
[INFO] [stderr]     Checking futures v0.3.9
[INFO] [stderr]     Checking moxie v0.7.1-pre (https://github.com/anp/moxie.git?branch=main#03217078)
[INFO] [stderr]     Checking web-sys v0.3.46
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.19
[INFO] [stderr]     Checking gloo-timers v0.2.1
[INFO] [stderr]     Checking prettiest v0.2.1 (https://github.com/anp/moxie.git?branch=main#03217078)
[INFO] [stderr]     Checking raf v0.2.0-pre (https://github.com/anp/moxie.git?branch=main#03217078)
[INFO] [stderr]     Checking augdom v0.2.0-pre (https://github.com/anp/moxie.git?branch=main#03217078)
[INFO] [stderr]     Checking moxie-dom v0.3.0-pre (https://github.com/anp/moxie.git?branch=main#03217078)
[INFO] [stderr]     Checking moxie-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/checkbox.rs:27:14
[INFO] [stdout]    |
[INFO] [stdout] 27 |     move |e| drop(setter.set(checked(e)))
[INFO] [stdout]    |              ^^^^^----------------------^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   argument has type `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/checkbox.rs:27:14
[INFO] [stdout]    |
[INFO] [stdout] 27 |     move |e| drop(setter.set(checked(e)))
[INFO] [stdout]    |              ^^^^^----------------------^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   argument has type `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.20s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.20.0, wasm-bindgen v0.2.69
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "ae150fef1585d7d588d669e8a4914b926547e43e88c2e32ec25c7e4c6d235b24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae150fef1585d7d588d669e8a4914b926547e43e88c2e32ec25c7e4c6d235b24", kill_on_drop: false }`
[INFO] [stdout] ae150fef1585d7d588d669e8a4914b926547e43e88c2e32ec25c7e4c6d235b24
[INFO] checking ZetaNumbers/moxie-playground against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZetaNumbers%2Fmoxie-playground" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ZetaNumbers/moxie-playground 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 git repo https://github.com/ZetaNumbers/moxie-playground
[INFO] finished tweaking git repo https://github.com/ZetaNumbers/moxie-playground
[INFO] tweaked toml for git repo https://github.com/ZetaNumbers/moxie-playground written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ZetaNumbers/moxie-playground 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 50fc7ed61d2809e60ae8ba77cf3b2a33d6f86e3f862da6a4d2c5270a43bdc616
[INFO] running `Command { std: "docker" "start" "-a" "50fc7ed61d2809e60ae8ba77cf3b2a33d6f86e3f862da6a4d2c5270a43bdc616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50fc7ed61d2809e60ae8ba77cf3b2a33d6f86e3f862da6a4d2c5270a43bdc616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50fc7ed61d2809e60ae8ba77cf3b2a33d6f86e3f862da6a4d2c5270a43bdc616", kill_on_drop: false }`
[INFO] [stdout] 50fc7ed61d2809e60ae8ba77cf3b2a33d6f86e3f862da6a4d2c5270a43bdc616
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7a2f872c4fa5e19d31dd92120783d249047cbe1a5a331a26908faba388232d6b
[INFO] running `Command { std: "docker" "start" "-a" "7a2f872c4fa5e19d31dd92120783d249047cbe1a5a331a26908faba388232d6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.69
[INFO] [stderr]    Compiling bumpalo v3.4.0
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling wasm-bindgen v0.2.69
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling paste v1.0.4
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking futures-core v0.3.9
[INFO] [stderr]     Checking futures-sink v0.3.9
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking futures-channel v0.3.9
[INFO] [stderr]     Checking futures-task v0.3.9
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.9
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking hash_hasher v2.0.3
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]     Checking quick-xml v0.20.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/quick-xml-0.20.0/src/events/attributes.rs:235:17
[INFO] [stdout]     |
[INFO] [stdout] 235 | /                 if self.html {
[INFO] [stdout] 236 | |                     attr!($key, 0..0)
[INFO] [stdout] 237 | |                 } else {
[INFO] [stdout] 238 | |                     return None;
[INFO] [stdout] 239 | |                 };
[INFO] [stdout]     | |_________________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 262 |               None => attr!(self.position..len),
[INFO] [stdout]     |                       ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `attr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/quick-xml-0.20.0/src/events/attributes.rs:235:17
[INFO] [stdout]     |
[INFO] [stdout] 235 | /                 if self.html {
[INFO] [stdout] 236 | |                     attr!($key, 0..0)
[INFO] [stdout] 237 | |                 } else {
[INFO] [stdout] 238 | |                     return None;
[INFO] [stdout] 239 | |                 };
[INFO] [stdout]     | |_________________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 262 |               None => attr!(self.position..len),
[INFO] [stdout]     |                       ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `attr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking num-traits v0.2.14
[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 `quick-xml` (lib) due to 2 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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 `quick-xml` (lib) due to 2 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "7a2f872c4fa5e19d31dd92120783d249047cbe1a5a331a26908faba388232d6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a2f872c4fa5e19d31dd92120783d249047cbe1a5a331a26908faba388232d6b", kill_on_drop: false }`
[INFO] [stdout] 7a2f872c4fa5e19d31dd92120783d249047cbe1a5a331a26908faba388232d6b