[INFO] fetching crate rofi-faye 0.1.0...
[INFO] checking rofi-faye-0.1.0 against try#70daa2c0d8eed7066b07966f3c0b0b8622bff4e4 for pr-151539
[INFO] extracting crate rofi-faye 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate rofi-faye 0.1.0
[INFO] finished tweaking crates.io crate rofi-faye 0.1.0
[INFO] tweaked toml for crates.io crate rofi-faye 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rofi-faye 0.1.0 on toolchain 70daa2c0d8eed7066b07966f3c0b0b8622bff4e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+70daa2c0d8eed7066b07966f3c0b0b8622bff4e4" "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" "+70daa2c0d8eed7066b07966f3c0b0b8622bff4e4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 114 packages to latest compatible versions
[INFO] [stderr]       Adding rofi-mode v0.4.1 (available: v0.5.0)
[INFO] [stderr]       Adding rofi-plugin-sys v0.4.0 (available: v0.6.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+70daa2c0d8eed7066b07966f3c0b0b8622bff4e4" "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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+70daa2c0d8eed7066b07966f3c0b0b8622bff4e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3359a0b69bbca912cc37e13cbea92d338339dd834d9300566d61e7b833d44c11
[INFO] running `Command { std: "docker" "start" "-a" "3359a0b69bbca912cc37e13cbea92d338339dd834d9300566d61e7b833d44c11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3359a0b69bbca912cc37e13cbea92d338339dd834d9300566d61e7b833d44c11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3359a0b69bbca912cc37e13cbea92d338339dd834d9300566d61e7b833d44c11", kill_on_drop: false }`
[INFO] [stdout] 3359a0b69bbca912cc37e13cbea92d338339dd834d9300566d61e7b833d44c11
[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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+70daa2c0d8eed7066b07966f3c0b0b8622bff4e4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4b4f400430bc1e80e90ee619128d8bada9eb497542c80bf3c36967acba7aca6
[INFO] running `Command { std: "docker" "start" "-a" "e4b4f400430bc1e80e90ee619128d8bada9eb497542c80bf3c36967acba7aca6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.182
[INFO] [stderr]    Compiling target-lexicon v0.12.16
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling version-compare v0.2.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling xml-rs v0.8.28
[INFO] [stderr]     Checking libloading v0.8.9
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling toml_parser v1.0.9+spec-1.1.0
[INFO] [stderr]     Checking futures-core v0.3.32
[INFO] [stderr]    Compiling syn v2.0.116
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]     Checking slab v0.4.12
[INFO] [stderr]     Checking downcast-rs v1.2.1
[INFO] [stderr]     Checking futures-channel v0.3.32
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.1
[INFO] [stderr]     Checking xcursor v0.3.10
[INFO] [stderr]     Checking dlib v0.5.2
[INFO] [stderr]    Compiling gio v0.19.8
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]     Checking home v0.5.12
[INFO] [stderr]    Compiling copypasta-ext v0.4.4
[INFO] [stderr]     Checking faye v0.6.3
[INFO] [stderr]    Compiling toml_edit v0.23.10+spec-1.0.0
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling serde_spanned v0.6.9
[INFO] [stderr]    Compiling toml_edit v0.22.27
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/faye-0.6.3/src/eval/scope.rs:236:50
[INFO] [stdout]     |
[INFO] [stdout] 236 |                 if !ctx.eval(n).and_then(|v| ctx.downcast(&v))? {
[INFO] [stdout]     |                                                  ^^^^^^^^ cannot infer type of the type parameter `T` declared on the method `downcast`
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 236 |                 if !ctx.eval(n).and_then(|v| ctx.downcast::<T>(&v))? {
[INFO] [stdout]     |                                                          +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cfg-expr v0.15.8
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `faye` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e4b4f400430bc1e80e90ee619128d8bada9eb497542c80bf3c36967acba7aca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4b4f400430bc1e80e90ee619128d8bada9eb497542c80bf3c36967acba7aca6", kill_on_drop: false }`
[INFO] [stdout] e4b4f400430bc1e80e90ee619128d8bada9eb497542c80bf3c36967acba7aca6