[INFO] fetching crate cursh 0.1.1...
[INFO] checking cursh-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate cursh 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate cursh 0.1.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cursh 0.1.1
[INFO] finished tweaking crates.io crate cursh 0.1.1
[INFO] tweaked toml for crates.io crate cursh 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate cursh 0.1.1 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded colored v2.0.0
[INFO] [stderr]   Downloaded redox_termios v0.1.2
[INFO] [stderr]   Downloaded termion v1.5.6
[INFO] [stderr]   Downloaded atty v0.2.11
[INFO] [stderr]   Downloaded aho-corasick v0.7.19
[INFO] [stderr]   Downloaded wayland-sys v0.27.0
[INFO] [stderr]   Downloaded cli-clipboard v0.2.1
[INFO] [stderr]   Downloaded str-buf v1.0.6
[INFO] [stderr]   Downloaded error-code v2.3.1
[INFO] [stderr]   Downloaded numtoa v0.1.0
[INFO] [stderr]   Downloaded wayland-scanner v0.27.0
[INFO] [stderr]   Downloaded exitfailure v0.5.1
[INFO] [stderr]   Downloaded os_pipe v0.9.2
[INFO] [stderr]   Downloaded stderrlog v0.4.3
[INFO] [stderr]   Downloaded xml-rs v0.8.4
[INFO] [stderr]   Downloaded anyhow v1.0.64
[INFO] [stderr]   Downloaded backtrace v0.3.66
[INFO] [stderr]   Downloaded object v0.29.0
[INFO] [stderr]   Downloaded nix v0.18.0
[INFO] [stderr]   Downloaded gimli v0.26.2
[INFO] [stderr]   Downloaded chrono v0.4.22
[INFO] [stderr]   Downloaded nix v0.17.0
[INFO] [stderr]   Downloaded wayland-protocols v0.27.0
[INFO] [stderr]   Downloaded clipboard-win v4.4.2
[INFO] [stderr]   Downloaded miniz_oxide v0.5.4
[INFO] [stderr]   Downloaded wayland-client v0.27.0
[INFO] [stderr]   Downloaded once_cell v1.14.0
[INFO] [stderr]   Downloaded tree_magic v0.2.3
[INFO] [stderr]   Downloaded smallvec v1.9.0
[INFO] [stderr]   Downloaded wayland-commons v0.27.0
[INFO] [stderr]   Downloaded iana-time-zone v0.1.47
[INFO] [stderr]   Downloaded thread_local v0.3.4
[INFO] [stderr]   Downloaded pkg-config v0.3.25
[INFO] [stderr]   Downloaded wl-clipboard-rs v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 180091b3e0c64138afce66e282b0cecb94296a069fc4cdcc95d8ae7b7d755616
[INFO] running `Command { std: "docker" "start" "-a" "180091b3e0c64138afce66e282b0cecb94296a069fc4cdcc95d8ae7b7d755616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "180091b3e0c64138afce66e282b0cecb94296a069fc4cdcc95d8ae7b7d755616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "180091b3e0c64138afce66e282b0cecb94296a069fc4cdcc95d8ae7b7d755616", kill_on_drop: false }`
[INFO] [stdout] 180091b3e0c64138afce66e282b0cecb94296a069fc4cdcc95d8ae7b7d755616
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55916b9a5fb24849e71b7826556343d44606cb1e3b47c7d3006e048cceb0c125
[INFO] running `Command { std: "docker" "start" "-a" "55916b9a5fb24849e71b7826556343d44606cb1e3b47c7d3006e048cceb0c125", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking gimli v0.26.2
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stderr]    Compiling quick-xml v0.22.0
[INFO] [stderr]     Checking object v0.29.0
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking once_cell v1.14.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling wayland-sys v0.27.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking iana-time-zone v0.1.47
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]    Compiling anyhow v1.0.64
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]    Compiling wayland-scanner v0.27.0
[INFO] [stderr]    Compiling xcb v0.10.1
[INFO] [stderr]    Compiling backtrace v0.3.66
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking chrono v0.4.22
[INFO] [stderr]    Compiling wayland-client v0.27.0
[INFO] [stderr]    Compiling wayland-protocols v0.27.0
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking tree_magic v0.2.3
[INFO] [stderr]     Checking stderrlog v0.4.3
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking wayland-commons v0.27.0
[INFO] [stderr]     Checking x11-clipboard v0.5.3
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking wl-clipboard-rs v0.4.1
[INFO] [stderr]     Checking cli-clipboard v0.2.1
[INFO] [stderr]     Checking cursh v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.47s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v3.2.1, quick-xml v0.22.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "55916b9a5fb24849e71b7826556343d44606cb1e3b47c7d3006e048cceb0c125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55916b9a5fb24849e71b7826556343d44606cb1e3b47c7d3006e048cceb0c125", kill_on_drop: false }`
[INFO] [stdout] 55916b9a5fb24849e71b7826556343d44606cb1e3b47c7d3006e048cceb0c125
[INFO] checking cursh-0.1.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate cursh 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate cursh 0.1.1 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cursh 0.1.1
[INFO] finished tweaking crates.io crate cursh 0.1.1
[INFO] tweaked toml for crates.io crate cursh 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate cursh 0.1.1 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0706d52e3df7a54bda4e4ef680eb95ce041c1db3334268cf537735e76eb4be8a
[INFO] running `Command { std: "docker" "start" "-a" "0706d52e3df7a54bda4e4ef680eb95ce041c1db3334268cf537735e76eb4be8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0706d52e3df7a54bda4e4ef680eb95ce041c1db3334268cf537735e76eb4be8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0706d52e3df7a54bda4e4ef680eb95ce041c1db3334268cf537735e76eb4be8a", kill_on_drop: false }`
[INFO] [stdout] 0706d52e3df7a54bda4e4ef680eb95ce041c1db3334268cf537735e76eb4be8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 785340e927261e8e78e9b0078a267c1459b76a4a6ce1109cf04de4a41c8a4e48
[INFO] running `Command { std: "docker" "start" "-a" "785340e927261e8e78e9b0078a267c1459b76a4a6ce1109cf04de4a41c8a4e48", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]     Checking gimli v0.26.2
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stderr]    Compiling quick-xml v0.22.0
[INFO] [stderr]     Checking object v0.29.0
[INFO] [stderr]     Checking once_cell v1.14.0
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling wayland-sys v0.27.0
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking iana-time-zone v0.1.47
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]    Compiling anyhow v1.0.64
[INFO] [stderr]    Compiling wayland-scanner v0.27.0
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]    Compiling xcb v0.10.1
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking chrono v0.4.22
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]    Compiling backtrace v0.3.66
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]    Compiling wayland-client v0.27.0
[INFO] [stderr]    Compiling wayland-protocols v0.27.0
[INFO] [stderr]     Checking tree_magic v0.2.3
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking stderrlog v0.4.3
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking wayland-commons v0.27.0
[INFO] [stderr]     Checking x11-clipboard v0.5.3
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking wl-clipboard-rs v0.4.1
[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-6f17d22bba15001f/wl-clipboard-rs-0.4.1/src/copy.rs:434:56
[INFO] [stdout]     |
[INFO] [stdout] 434 |         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 `!`, which is required by `Result<_, _>: FromIterator<Result<(), copy::Error>>`
[INFO] [stdout]     = help: the trait `FromIterator<Result<A, E>>` is implemented for `Result<V, E>`
[INFO] [stdout]     = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #48950 <https://github.com/rust-lang/rust/issues/48950> for more information)
[INFO] [stdout]     = help: did you intend 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/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/core/src/iter/traits/iterator.rs:1999:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[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 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "785340e927261e8e78e9b0078a267c1459b76a4a6ce1109cf04de4a41c8a4e48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "785340e927261e8e78e9b0078a267c1459b76a4a6ce1109cf04de4a41c8a4e48", kill_on_drop: false }`
[INFO] [stdout] 785340e927261e8e78e9b0078a267c1459b76a4a6ce1109cf04de4a41c8a4e48