[INFO] fetching crate algar 0.4.1...
[INFO] checking algar-0.4.1 against try#b6bca0d7327839b5e3f7a7779947cb9113d08917+rustflags=-Zstrict-projection-item-bounds for 150662-leaf
[INFO] extracting crate algar 0.4.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate algar 0.4.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate algar 0.4.1
[INFO] tweaked toml for crates.io crate algar 0.4.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate algar 0.4.1 on toolchain b6bca0d7327839b5e3f7a7779947cb9113d08917
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate algar 0.4.1 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" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b73a6ab87c298bd8d67082a9984716675160b0b6def7e4c803d705ea435918eb
[INFO] running `Command { std: "docker" "start" "-a" "b73a6ab87c298bd8d67082a9984716675160b0b6def7e4c803d705ea435918eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b73a6ab87c298bd8d67082a9984716675160b0b6def7e4c803d705ea435918eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b73a6ab87c298bd8d67082a9984716675160b0b6def7e4c803d705ea435918eb", kill_on_drop: false }`
[INFO] [stdout] b73a6ab87c298bd8d67082a9984716675160b0b6def7e4c803d705ea435918eb
[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 -Zstrict-projection-item-bounds" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42f5ea6e4492856f08abd1a41f9e7a3a920cc7da9cd53a8af89d73b536745363
[INFO] running `Command { std: "docker" "start" "-a" "42f5ea6e4492856f08abd1a41f9e7a3a920cc7da9cd53a8af89d73b536745363", kill_on_drop: false }`
[INFO] [stderr]     Checking algar v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0271]: type mismatch resolving `<A as Functor<'a>>::Unwrapped == B`
[INFO] [stdout]   --> src/traversable.rs:62:28
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn sequence_a<B: 'a, W>(self) -> W::Wrapped<Self::Wrapped<B>>
[INFO] [stdout]    |                   - expected this type parameter
[INFO] [stdout] ...
[INFO] [stdout] 62 |         W: Applicative<'a, Wrapped<B> = Self::Unwrapped>,
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected type parameter `B`, found associated type
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected type parameter `B`
[INFO] [stdout]              found associated type `<A as Functor<'a>>::Unwrapped`
[INFO] [stdout]    = note: you might be missing a type parameter or trait bound
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0271]: type mismatch resolving `<A as Functor<'a>>::Unwrapped == B`
[INFO] [stdout]   --> src/traversable.rs:62:28
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn sequence_a<B: 'a, W>(self) -> W::Wrapped<Self::Wrapped<B>>
[INFO] [stdout]    |                   - expected this type parameter
[INFO] [stdout] ...
[INFO] [stdout] 62 |         W: Applicative<'a, Wrapped<B> = Self::Unwrapped>,
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected type parameter `B`, found associated type
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected type parameter `B`
[INFO] [stdout]              found associated type `<A as Functor<'a>>::Unwrapped`
[INFO] [stdout]    = note: you might be missing a type parameter or trait bound
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0271`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `algar` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0271`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `algar` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "42f5ea6e4492856f08abd1a41f9e7a3a920cc7da9cd53a8af89d73b536745363", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42f5ea6e4492856f08abd1a41f9e7a3a920cc7da9cd53a8af89d73b536745363", kill_on_drop: false }`
[INFO] [stdout] 42f5ea6e4492856f08abd1a41f9e7a3a920cc7da9cd53a8af89d73b536745363