[INFO] cloning repository https://github.com/Meowu/copy-mfa
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Meowu/copy-mfa" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMeowu%2Fcopy-mfa", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMeowu%2Fcopy-mfa'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f859eeac9023f3a8c4f5a139e5f17a0437b4163
[INFO] checking Meowu/copy-mfa against try#88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c for pr-154887
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMeowu%2Fcopy-mfa" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Meowu/copy-mfa
[INFO] finished tweaking git repo https://github.com/Meowu/copy-mfa
[INFO] tweaked toml for git repo https://github.com/Meowu/copy-mfa written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Meowu/copy-mfa on toolchain 88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Meowu/copy-mfa 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" "+88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 779125345f4ccd2f38c7213666d03aebca3d62b435f8ade2108fbd5f7af52f30
[INFO] running `Command { std: "docker" "start" "-a" "779125345f4ccd2f38c7213666d03aebca3d62b435f8ade2108fbd5f7af52f30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "779125345f4ccd2f38c7213666d03aebca3d62b435f8ade2108fbd5f7af52f30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "779125345f4ccd2f38c7213666d03aebca3d62b435f8ade2108fbd5f7af52f30", kill_on_drop: false }`
[INFO] [stdout] 779125345f4ccd2f38c7213666d03aebca3d62b435f8ade2108fbd5f7af52f30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d8e5dd8b449ed9d6ef91ede837f6505f25b9b4d9dd73ae62b7e395ad23e5cd7
[INFO] running `Command { std: "docker" "start" "-a" "6d8e5dd8b449ed9d6ef91ede837f6505f25b9b4d9dd73ae62b7e395ad23e5cd7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling quote v1.0.16
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling wayland-sys v0.27.0
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]    Compiling wayland-scanner v0.27.0
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking chrono v0.4.19
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[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking gethostname v0.2.3
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]    Compiling wayland-client v0.27.0
[INFO] [stderr]    Compiling wayland-protocols v0.27.0
[INFO] [stderr]     Checking nix v0.22.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking stderrlog v0.4.3
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking bytemuck v1.8.0
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking base32 v0.4.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking hmac-sha1 v0.1.3
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking wayland-commons v0.27.0
[INFO] [stderr]     Checking tree_magic v0.2.3
[INFO] [stderr]     Checking google-authenticator v0.3.0
[INFO] [stderr]     Checking x11rb v0.9.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[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 thiserror v1.0.30
[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-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/88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c/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/88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c/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" "6d8e5dd8b449ed9d6ef91ede837f6505f25b9b4d9dd73ae62b7e395ad23e5cd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d8e5dd8b449ed9d6ef91ede837f6505f25b9b4d9dd73ae62b7e395ad23e5cd7", kill_on_drop: false }`
[INFO] [stdout] 6d8e5dd8b449ed9d6ef91ede837f6505f25b9b4d9dd73ae62b7e395ad23e5cd7