[INFO] cloning repository https://github.com/barp/bswitcher
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/barp/bswitcher" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbarp%2Fbswitcher", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbarp%2Fbswitcher'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da2d1177a92a850f5add9f687cb520a4e4bbdd6b
[INFO] checking barp/bswitcher against try#1c4199da70f816f2239f41c55168ff75a3663718 for pr-155499
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbarp%2Fbswitcher" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/barp/bswitcher
[INFO] finished tweaking git repo https://github.com/barp/bswitcher
[INFO] tweaked toml for git repo https://github.com/barp/bswitcher written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/barp/bswitcher 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 git repo https://github.com/barp/bswitcher 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] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e02d8e320ab76f3f3581924d0b891eeb44c43b9b650bad577723a84c495ba3a5
[INFO] running `Command { std: "docker" "start" "-a" "e02d8e320ab76f3f3581924d0b891eeb44c43b9b650bad577723a84c495ba3a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e02d8e320ab76f3f3581924d0b891eeb44c43b9b650bad577723a84c495ba3a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e02d8e320ab76f3f3581924d0b891eeb44c43b9b650bad577723a84c495ba3a5", kill_on_drop: false }`
[INFO] [stdout] e02d8e320ab76f3f3581924d0b891eeb44c43b9b650bad577723a84c495ba3a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4df89cf3c1aa3eb651f27f3e1aef588a18df5dc69c5e8a253438f3cf325e7f83
[INFO] running `Command { std: "docker" "start" "-a" "4df89cf3c1aa3eb651f27f3e1aef588a18df5dc69c5e8a253438f3cf325e7f83", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
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[INFO] [stderr]    Compiling futures-core v0.3.29
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[INFO] [stderr]    Compiling openssl-src v300.1.6+3.1.4
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[INFO] [stderr]    Compiling async-attributes v1.1.2
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[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking polling v0.1.9
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[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking cpufeatures v0.2.11
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking unindent v0.1.11
[INFO] [stderr]    Compiling indoc v1.0.9
[INFO] [stderr]     Checking gimli v0.28.0
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]     Checking vec-arena v0.5.2
[INFO] [stderr]     Checking async-io v0.1.11
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling quick-xml v0.22.0
[INFO] [stderr]     Checking async-std v1.12.0
[INFO] [stderr]     Checking blocking v0.5.2
[INFO] [stderr]    Compiling wayland-client v0.27.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling pyo3-macros v0.19.2
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
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[INFO] [stderr]     Checking term_size v0.3.2
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[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
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[INFO] [stderr]     Checking ipnet v2.9.0
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[INFO] [stderr]     Checking wayland-commons v0.27.0
[INFO] [stderr]    Compiling heck v0.3.3
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[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]     Checking async-net v0.1.2
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[INFO] [stderr]     Checking hmac v0.12.1
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[INFO] [stderr]    Compiling wayland-protocols v0.27.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]     Checking parking_lot_core v0.7.3
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking downcast-rs v1.2.0
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[INFO] [stderr]     Checking iana-time-zone v0.1.58
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking termcolor v1.3.0
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking clap v2.34.0
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[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]     Checking stderrlog v0.4.3
[INFO] [stderr]     Checking tree_magic v0.2.3
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking futures-executor v0.3.29
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]     Checking tempfile v3.8.1
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking os_str_bytes v6.6.1
[INFO] [stderr]    Compiling clap_derive v3.2.25
[INFO] [stderr]    Compiling bswitch-python v0.1.0 (/opt/rustwide/workdir/python)
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking futures v0.3.29
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking bzip2 v0.4.4
[INFO] [stderr]    Compiling pyo3-asyncio-macros v0.19.0
[INFO] [stderr]     Checking x11-clipboard v0.5.3
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking textwrap v0.16.0
[INFO] [stderr]     Checking zip v0.5.13
[INFO] [stderr]     Checking pyo3-asyncio v0.19.0
[INFO] [stderr]     Checking clap v3.2.25
[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-1949cf8c6b5b557f/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 `!`
[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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4df89cf3c1aa3eb651f27f3e1aef588a18df5dc69c5e8a253438f3cf325e7f83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4df89cf3c1aa3eb651f27f3e1aef588a18df5dc69c5e8a253438f3cf325e7f83", kill_on_drop: false }`
[INFO] [stdout] 4df89cf3c1aa3eb651f27f3e1aef588a18df5dc69c5e8a253438f3cf325e7f83
