[INFO] fetching crate aimo 0.1.12...
[INFO] checking aimo-0.1.12 against try#1c4199da70f816f2239f41c55168ff75a3663718 for pr-155499
[INFO] extracting crate aimo 0.1.12 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate aimo 0.1.12
[INFO] finished tweaking crates.io crate aimo 0.1.12
[INFO] tweaked toml for crates.io crate aimo 0.1.12 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate aimo 0.1.12 on toolchain 1c4199da70f816f2239f41c55168ff75a3663718
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1c4199da70f816f2239f41c55168ff75a3663718" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate aimo 0.1.12 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" "+1c4199da70f816f2239f41c55168ff75a3663718" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1c4199da70f816f2239f41c55168ff75a3663718" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be117e6307b25a659a5e10af511290ade21b49f935ab5b178796f5ecb6ac9d45
[INFO] running `Command { std: "docker" "start" "-a" "be117e6307b25a659a5e10af511290ade21b49f935ab5b178796f5ecb6ac9d45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be117e6307b25a659a5e10af511290ade21b49f935ab5b178796f5ecb6ac9d45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be117e6307b25a659a5e10af511290ade21b49f935ab5b178796f5ecb6ac9d45", kill_on_drop: false }`
[INFO] [stdout] be117e6307b25a659a5e10af511290ade21b49f935ab5b178796f5ecb6ac9d45
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1c4199da70f816f2239f41c55168ff75a3663718" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a28e119bcbf395a3128ce181d0c0554ba2d1f4bcf9320b3947ea685f3cbe4c7
[INFO] running `Command { std: "docker" "start" "-a" "5a28e119bcbf395a3128ce181d0c0554ba2d1f4bcf9320b3947ea685f3cbe4c7", kill_on_drop: false }`
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[INFO] [stderr]     Checking wl-clipboard-rs v0.8.1
[INFO] [stdout] error[E0277]: a value of type `!` cannot be built from an iterator over elements of type `()`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/wl-clipboard-rs-0.8.1/src/copy.rs:591:56
[INFO] [stdout]     |
[INFO] [stdout] 591 |         let result: Result<_, _> = results.into_iter().collect();
[INFO] [stdout]     |                                                        ^^^^^^^ value of type `!` cannot be built from `std::iter::Iterator<Item=()>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromIterator<()>` is not implemented for `!`
[INFO] [stdout] help: the trait `FromIterator<Result<A, E>>` is implemented for `Result<V, E>`
[INFO] [stdout]    --> /rustc/1c4199da70f816f2239f41c55168ff75a3663718/library/core/src/result.rs:2109:0
[INFO] [stdout]     = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 <https://github.com/rust-lang/rust/issues/148922> for more information)
[INFO] [stdout]     = help: you might have intended to use the type `()` here instead
[INFO] [stdout]     = note: required for `Result<!, copy::Error>` to implement `FromIterator<Result<(), copy::Error>>`
[INFO] [stdout] note: required by a bound in `collect`
[INFO] [stdout]    --> /rustc/1c4199da70f816f2239f41c55168ff75a3663718/library/core/src/iter/traits/iterator.rs:2079:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wl-clipboard-rs` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "5a28e119bcbf395a3128ce181d0c0554ba2d1f4bcf9320b3947ea685f3cbe4c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a28e119bcbf395a3128ce181d0c0554ba2d1f4bcf9320b3947ea685f3cbe4c7", kill_on_drop: false }`
[INFO] [stdout] 5a28e119bcbf395a3128ce181d0c0554ba2d1f4bcf9320b3947ea685f3cbe4c7