[INFO] fetching crate parse_arg 1.0.1...
[INFO] checking parse_arg-1.0.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate parse_arg 1.0.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate parse_arg 1.0.1
[INFO] finished tweaking crates.io crate parse_arg 1.0.1
[INFO] tweaked toml for crates.io crate parse_arg 1.0.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate parse_arg 1.0.1 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate parse_arg 1.0.1 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while 2021 is compatible with `rust-version`
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f467beb36ed3f775b198d186c0b750210dc1d231f1e2204cab4f9ad87182875
[INFO] running `Command { std: "docker" "start" "-a" "5f467beb36ed3f775b198d186c0b750210dc1d231f1e2204cab4f9ad87182875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f467beb36ed3f775b198d186c0b750210dc1d231f1e2204cab4f9ad87182875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f467beb36ed3f775b198d186c0b750210dc1d231f1e2204cab4f9ad87182875", kill_on_drop: false }`
[INFO] [stdout] 5f467beb36ed3f775b198d186c0b750210dc1d231f1e2204cab4f9ad87182875
[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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40bfb280445eb1967ca507059276fadd7a5158ea263807cff882b87f8594783c
[INFO] running `Command { std: "docker" "start" "-a" "40bfb280445eb1967ca507059276fadd7a5158ea263807cff882b87f8594783c", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while 2021 is compatible with `rust-version`
[INFO] [stderr]     Checking parse_arg v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<OsString, Infallible>
[INFO] [stdout]    --> src/lib.rs:294:60
[INFO] [stdout]     |
[INFO] [stdout] 294 |       fn parse_arg(arg: &OsStr) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ____________________________________________________________^
[INFO] [stdout] 295 | |         Ok(arg.into())
[INFO] [stdout] 296 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<OsString, Infallible>
[INFO] [stdout]    --> src/lib.rs:295:9
[INFO] [stdout]     |
[INFO] [stdout] 295 |         Ok(arg.into())
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<OsString, Infallible>
[INFO] [stdout]    --> src/lib.rs:302:68
[INFO] [stdout]     |
[INFO] [stdout] 302 |       fn parse_owned_arg(arg: OsString) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ____________________________________________________________________^
[INFO] [stdout] 303 | |         Ok(arg)
[INFO] [stdout] 304 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<OsString, Infallible>
[INFO] [stdout]    --> src/lib.rs:303:9
[INFO] [stdout]     |
[INFO] [stdout] 303 |         Ok(arg)
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/lib.rs:311:60
[INFO] [stdout]     |
[INFO] [stdout] 311 |       fn parse_arg(arg: &OsStr) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ____________________________________________________________^
[INFO] [stdout] 312 | |         Ok(arg.into())
[INFO] [stdout] 313 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/lib.rs:312:9
[INFO] [stdout]     |
[INFO] [stdout] 312 |         Ok(arg.into())
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/lib.rs:319:68
[INFO] [stdout]     |
[INFO] [stdout] 319 |       fn parse_owned_arg(arg: OsString) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ____________________________________________________________________^
[INFO] [stdout] 320 | |         Ok(arg.into())
[INFO] [stdout] 321 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/lib.rs:320:9
[INFO] [stdout]     |
[INFO] [stdout] 320 |         Ok(arg.into())
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Box<Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:331:72
[INFO] [stdout]     |
[INFO] [stdout] 331 |                   fn parse_arg(arg: &OsStr) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________^
[INFO] [stdout] 332 | |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout] 333 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 363 |   impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Box<Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:332:21
[INFO] [stdout]     |
[INFO] [stdout] 332 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/lib.rs:332:21
[INFO] [stdout]     |
[INFO] [stdout] 332 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Box<Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:339:80
[INFO] [stdout]     |
[INFO] [stdout] 339 |                   fn parse_owned_arg(arg: OsString) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________________^
[INFO] [stdout] 340 | |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout] 341 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 363 |   impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Box<Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:340:21
[INFO] [stdout]     |
[INFO] [stdout] 340 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/lib.rs:340:21
[INFO] [stdout]     |
[INFO] [stdout] 340 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Cow<'_, Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:347:72
[INFO] [stdout]     |
[INFO] [stdout] 347 |                   fn parse_arg(arg: &OsStr) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________^
[INFO] [stdout] 348 | |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout] 349 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 363 |   impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Cow<'_, Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:348:21
[INFO] [stdout]     |
[INFO] [stdout] 348 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/lib.rs:348:21
[INFO] [stdout]     |
[INFO] [stdout] 348 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Cow<'_, Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:355:80
[INFO] [stdout]     |
[INFO] [stdout] 355 |                   fn parse_owned_arg(arg: OsString) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________________^
[INFO] [stdout] 356 | |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout] 357 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 363 |   impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Cow<'_, Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:356:21
[INFO] [stdout]     |
[INFO] [stdout] 356 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/lib.rs:356:21
[INFO] [stdout]     |
[INFO] [stdout] 356 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Box<OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:331:72
[INFO] [stdout]     |
[INFO] [stdout] 331 |                   fn parse_arg(arg: &OsStr) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________^
[INFO] [stdout] 332 | |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout] 333 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 363 |   impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Box<OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:332:21
[INFO] [stdout]     |
[INFO] [stdout] 332 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<OsString, Infallible>
[INFO] [stdout]    --> src/lib.rs:332:21
[INFO] [stdout]     |
[INFO] [stdout] 332 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Box<OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:339:80
[INFO] [stdout]     |
[INFO] [stdout] 339 |                   fn parse_owned_arg(arg: OsString) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________________^
[INFO] [stdout] 340 | |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout] 341 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 363 |   impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Box<OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:340:21
[INFO] [stdout]     |
[INFO] [stdout] 340 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<OsString, Infallible>
[INFO] [stdout]    --> src/lib.rs:340:21
[INFO] [stdout]     |
[INFO] [stdout] 340 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Cow<'_, OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:347:72
[INFO] [stdout]     |
[INFO] [stdout] 347 |                   fn parse_arg(arg: &OsStr) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________^
[INFO] [stdout] 348 | |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout] 349 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 363 |   impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Cow<'_, OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:348:21
[INFO] [stdout]     |
[INFO] [stdout] 348 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<OsString, Infallible>
[INFO] [stdout]    --> src/lib.rs:348:21
[INFO] [stdout]     |
[INFO] [stdout] 348 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Cow<'_, OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:355:80
[INFO] [stdout]     |
[INFO] [stdout] 355 |                   fn parse_owned_arg(arg: OsString) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________________^
[INFO] [stdout] 356 | |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout] 357 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 363 |   impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Cow<'_, OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:356:21
[INFO] [stdout]     |
[INFO] [stdout] 356 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<OsString, Infallible>
[INFO] [stdout]    --> src/lib.rs:356:21
[INFO] [stdout]     |
[INFO] [stdout] 356 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Rc<Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:371:72
[INFO] [stdout]     |
[INFO] [stdout] 371 |                   fn parse_arg(arg: &OsStr) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________^
[INFO] [stdout] 372 | |                     let arg: &$type = arg.as_ref();
[INFO] [stdout] 373 | |                     Ok(arg.into())
[INFO] [stdout] 374 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 398 |   impl_trivial_rc!(std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_trivial_rc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Rc<Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:373:21
[INFO] [stdout]     |
[INFO] [stdout] 373 |                     Ok(arg.into())
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 398 | impl_trivial_rc!(std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_trivial_rc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:385:72
[INFO] [stdout]     |
[INFO] [stdout] 385 |                   fn parse_arg(arg: &OsStr) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________^
[INFO] [stdout] 386 | |                     let arg: &$type = arg.as_ref();
[INFO] [stdout] 387 | |                     Ok(arg.into())
[INFO] [stdout] 388 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 398 |   impl_trivial_rc!(std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_trivial_rc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:387:21
[INFO] [stdout]     |
[INFO] [stdout] 387 |                     Ok(arg.into())
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 398 | impl_trivial_rc!(std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_trivial_rc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Rc<OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:371:72
[INFO] [stdout]     |
[INFO] [stdout] 371 |                   fn parse_arg(arg: &OsStr) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________^
[INFO] [stdout] 372 | |                     let arg: &$type = arg.as_ref();
[INFO] [stdout] 373 | |                     Ok(arg.into())
[INFO] [stdout] 374 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 398 |   impl_trivial_rc!(std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_trivial_rc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Rc<OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:373:21
[INFO] [stdout]     |
[INFO] [stdout] 373 |                     Ok(arg.into())
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 398 | impl_trivial_rc!(std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_trivial_rc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:385:72
[INFO] [stdout]     |
[INFO] [stdout] 385 |                   fn parse_arg(arg: &OsStr) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________^
[INFO] [stdout] 386 | |                     let arg: &$type = arg.as_ref();
[INFO] [stdout] 387 | |                     Ok(arg.into())
[INFO] [stdout] 388 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 398 |   impl_trivial_rc!(std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_trivial_rc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:387:21
[INFO] [stdout]     |
[INFO] [stdout] 387 |                     Ok(arg.into())
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 398 | impl_trivial_rc!(std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_trivial_rc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `parse_arg` (lib test) due to 40 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<OsString, Infallible>
[INFO] [stdout]    --> src/lib.rs:294:60
[INFO] [stdout]     |
[INFO] [stdout] 294 |       fn parse_arg(arg: &OsStr) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ____________________________________________________________^
[INFO] [stdout] 295 | |         Ok(arg.into())
[INFO] [stdout] 296 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<OsString, Infallible>
[INFO] [stdout]    --> src/lib.rs:295:9
[INFO] [stdout]     |
[INFO] [stdout] 295 |         Ok(arg.into())
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<OsString, Infallible>
[INFO] [stdout]    --> src/lib.rs:302:68
[INFO] [stdout]     |
[INFO] [stdout] 302 |       fn parse_owned_arg(arg: OsString) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ____________________________________________________________________^
[INFO] [stdout] 303 | |         Ok(arg)
[INFO] [stdout] 304 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<OsString, Infallible>
[INFO] [stdout]    --> src/lib.rs:303:9
[INFO] [stdout]     |
[INFO] [stdout] 303 |         Ok(arg)
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/lib.rs:311:60
[INFO] [stdout]     |
[INFO] [stdout] 311 |       fn parse_arg(arg: &OsStr) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ____________________________________________________________^
[INFO] [stdout] 312 | |         Ok(arg.into())
[INFO] [stdout] 313 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/lib.rs:312:9
[INFO] [stdout]     |
[INFO] [stdout] 312 |         Ok(arg.into())
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/lib.rs:319:68
[INFO] [stdout]     |
[INFO] [stdout] 319 |       fn parse_owned_arg(arg: OsString) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ____________________________________________________________________^
[INFO] [stdout] 320 | |         Ok(arg.into())
[INFO] [stdout] 321 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/lib.rs:320:9
[INFO] [stdout]     |
[INFO] [stdout] 320 |         Ok(arg.into())
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Box<Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:331:72
[INFO] [stdout]     |
[INFO] [stdout] 331 |                   fn parse_arg(arg: &OsStr) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________^
[INFO] [stdout] 332 | |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout] 333 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 363 |   impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Box<Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:332:21
[INFO] [stdout]     |
[INFO] [stdout] 332 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/lib.rs:332:21
[INFO] [stdout]     |
[INFO] [stdout] 332 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Box<Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:339:80
[INFO] [stdout]     |
[INFO] [stdout] 339 |                   fn parse_owned_arg(arg: OsString) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________________^
[INFO] [stdout] 340 | |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout] 341 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 363 |   impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Box<Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:340:21
[INFO] [stdout]     |
[INFO] [stdout] 340 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/lib.rs:340:21
[INFO] [stdout]     |
[INFO] [stdout] 340 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Cow<'_, Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:347:72
[INFO] [stdout]     |
[INFO] [stdout] 347 |                   fn parse_arg(arg: &OsStr) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________^
[INFO] [stdout] 348 | |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout] 349 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 363 |   impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Cow<'_, Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:348:21
[INFO] [stdout]     |
[INFO] [stdout] 348 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/lib.rs:348:21
[INFO] [stdout]     |
[INFO] [stdout] 348 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Cow<'_, Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:355:80
[INFO] [stdout]     |
[INFO] [stdout] 355 |                   fn parse_owned_arg(arg: OsString) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________________^
[INFO] [stdout] 356 | |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout] 357 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 363 |   impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Cow<'_, Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:356:21
[INFO] [stdout]     |
[INFO] [stdout] 356 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/lib.rs:356:21
[INFO] [stdout]     |
[INFO] [stdout] 356 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Box<OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:331:72
[INFO] [stdout]     |
[INFO] [stdout] 331 |                   fn parse_arg(arg: &OsStr) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________^
[INFO] [stdout] 332 | |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout] 333 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 363 |   impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Box<OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:332:21
[INFO] [stdout]     |
[INFO] [stdout] 332 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<OsString, Infallible>
[INFO] [stdout]    --> src/lib.rs:332:21
[INFO] [stdout]     |
[INFO] [stdout] 332 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Box<OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:339:80
[INFO] [stdout]     |
[INFO] [stdout] 339 |                   fn parse_owned_arg(arg: OsString) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________________^
[INFO] [stdout] 340 | |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout] 341 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 363 |   impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Box<OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:340:21
[INFO] [stdout]     |
[INFO] [stdout] 340 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<OsString, Infallible>
[INFO] [stdout]    --> src/lib.rs:340:21
[INFO] [stdout]     |
[INFO] [stdout] 340 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Cow<'_, OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:347:72
[INFO] [stdout]     |
[INFO] [stdout] 347 |                   fn parse_arg(arg: &OsStr) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________^
[INFO] [stdout] 348 | |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout] 349 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 363 |   impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Cow<'_, OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:348:21
[INFO] [stdout]     |
[INFO] [stdout] 348 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<OsString, Infallible>
[INFO] [stdout]    --> src/lib.rs:348:21
[INFO] [stdout]     |
[INFO] [stdout] 348 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Cow<'_, OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:355:80
[INFO] [stdout]     |
[INFO] [stdout] 355 |                   fn parse_owned_arg(arg: OsString) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________________^
[INFO] [stdout] 356 | |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout] 357 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 363 |   impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Cow<'_, OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:356:21
[INFO] [stdout]     |
[INFO] [stdout] 356 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<OsString, Infallible>
[INFO] [stdout]    --> src/lib.rs:356:21
[INFO] [stdout]     |
[INFO] [stdout] 356 |                     <<$type as ToOwned>::Owned as ParseArg>::parse_owned_arg(arg).map(Into::into)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 | impl_unsized!(str, std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_unsized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Rc<Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:371:72
[INFO] [stdout]     |
[INFO] [stdout] 371 |                   fn parse_arg(arg: &OsStr) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________^
[INFO] [stdout] 372 | |                     let arg: &$type = arg.as_ref();
[INFO] [stdout] 373 | |                     Ok(arg.into())
[INFO] [stdout] 374 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 398 |   impl_trivial_rc!(std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_trivial_rc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Rc<Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:373:21
[INFO] [stdout]     |
[INFO] [stdout] 373 |                     Ok(arg.into())
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 398 | impl_trivial_rc!(std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_trivial_rc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:385:72
[INFO] [stdout]     |
[INFO] [stdout] 385 |                   fn parse_arg(arg: &OsStr) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________^
[INFO] [stdout] 386 | |                     let arg: &$type = arg.as_ref();
[INFO] [stdout] 387 | |                     Ok(arg.into())
[INFO] [stdout] 388 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 398 |   impl_trivial_rc!(std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_trivial_rc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<Path>, Infallible>
[INFO] [stdout]    --> src/lib.rs:387:21
[INFO] [stdout]     |
[INFO] [stdout] 387 |                     Ok(arg.into())
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 398 | impl_trivial_rc!(std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_trivial_rc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Rc<OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:371:72
[INFO] [stdout]     |
[INFO] [stdout] 371 |                   fn parse_arg(arg: &OsStr) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________^
[INFO] [stdout] 372 | |                     let arg: &$type = arg.as_ref();
[INFO] [stdout] 373 | |                     Ok(arg.into())
[INFO] [stdout] 374 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 398 |   impl_trivial_rc!(std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_trivial_rc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Rc<OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:373:21
[INFO] [stdout]     |
[INFO] [stdout] 373 |                     Ok(arg.into())
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 398 | impl_trivial_rc!(std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_trivial_rc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:385:72
[INFO] [stdout]     |
[INFO] [stdout] 385 |                   fn parse_arg(arg: &OsStr) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________^
[INFO] [stdout] 386 | |                     let arg: &$type = arg.as_ref();
[INFO] [stdout] 387 | |                     Ok(arg.into())
[INFO] [stdout] 388 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 398 |   impl_trivial_rc!(std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     |   -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_trivial_rc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<OsStr>, Infallible>
[INFO] [stdout]    --> src/lib.rs:387:21
[INFO] [stdout]     |
[INFO] [stdout] 387 |                     Ok(arg.into())
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 398 | impl_trivial_rc!(std::path::Path, std::ffi::OsStr);
[INFO] [stdout]     | -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_trivial_rc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `parse_arg` (lib) due to 40 previous errors
[INFO] running `Command { std: "docker" "inspect" "40bfb280445eb1967ca507059276fadd7a5158ea263807cff882b87f8594783c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40bfb280445eb1967ca507059276fadd7a5158ea263807cff882b87f8594783c", kill_on_drop: false }`
[INFO] [stdout] 40bfb280445eb1967ca507059276fadd7a5158ea263807cff882b87f8594783c