[INFO] cloning repository https://github.com/killercup/cthulhu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/killercup/cthulhu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkillercup%2Fcthulhu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkillercup%2Fcthulhu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ee4a9f5a5bcf72164831650b23d9dc0d5618a04e
[INFO] checking killercup/cthulhu against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkillercup%2Fcthulhu" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/killercup/cthulhu
[INFO] finished tweaking git repo https://github.com/killercup/cthulhu
[INFO] tweaked toml for git repo https://github.com/killercup/cthulhu written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/killercup/cthulhu 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 git repo https://github.com/killercup/cthulhu 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] 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] df99ff18f948e5f0c2bf11099f2d33ad4173a9ab88f150fda6ea0dca74fbedc4
[INFO] running `Command { std: "docker" "start" "-a" "df99ff18f948e5f0c2bf11099f2d33ad4173a9ab88f150fda6ea0dca74fbedc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df99ff18f948e5f0c2bf11099f2d33ad4173a9ab88f150fda6ea0dca74fbedc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df99ff18f948e5f0c2bf11099f2d33ad4173a9ab88f150fda6ea0dca74fbedc4", kill_on_drop: false }`
[INFO] [stdout] df99ff18f948e5f0c2bf11099f2d33ad4173a9ab88f150fda6ea0dca74fbedc4
[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] 0e6cd187206f7c14c9dd673b05fa9a920128e7c835190692291b9aab22923a12
[INFO] running `Command { std: "docker" "start" "-a" "0e6cd187206f7c14c9dd673b05fa9a920128e7c835190692291b9aab22923a12", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling cc v1.0.88
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking proc-macro2 v1.0.78
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]    Compiling is-terminal v0.4.12
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking siphasher v0.3.11
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking phf_shared v0.11.2
[INFO] [stderr]    Compiling phf v0.11.2
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]    Compiling darling_core v0.20.8
[INFO] [stderr]     Checking heck v0.4.1
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]     Checking pretty_env_logger v0.5.0
[INFO] [stderr]    Compiling snafu-derive v0.4.4
[INFO] [stderr]    Compiling cffi-impl v0.2.0-dev (/opt/rustwide/workdir/impl)
[INFO] [stderr]    Compiling ctor v0.2.7
[INFO] [stderr]     Checking snafu v0.4.4
[INFO] [stderr]     Checking assert_tokens_eq v0.1.0 (https://github.com/killercup/assert_tokens_eq#81281938)
[INFO] [stderr]    Compiling darling_macro v0.20.8
[INFO] [stderr]    Compiling darling v0.20.8
[INFO] [stdout] warning: unexpected `cfg` condition value: `used_linker`
[INFO] [stdout]   --> impl/src/lib.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[ctor]
[INFO] [stdout]    | ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a attribute macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `ctor` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the attribute macro `ctor` may come from an old version of the `ctor` crate, try updating your dependency with `cargo update -p ctor`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]    = note: this warning originates in the attribute macro `ctor` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `used_linker`
[INFO] [stdout]   --> impl/src/lib.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[ctor]
[INFO] [stdout]    | ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a attribute macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `ctor` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the attribute macro `ctor` may come from an old version of the `ctor` crate, try updating your dependency with `cargo update -p ctor`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]    = note: this warning originates in the attribute macro `ctor` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `used_linker`
[INFO] [stdout]   --> impl/src/lib.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[ctor]
[INFO] [stdout]    | ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a attribute macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `ctor` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the attribute macro `ctor` may come from an old version of the `ctor` crate, try updating your dependency with `cargo update -p ctor`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]    = note: this warning originates in the attribute macro `ctor` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking cffi v0.2.0-dev (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/str.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct StrMarshaler<'a>(&'a PhantomData<()>);
[INFO] [stdout]   |            ------------     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<*const T, Infallible>
[INFO] [stdout]   --> src/arc.rs:43:67
[INFO] [stdout]    |
[INFO] [stdout] 43 |       fn to_foreign(local: Arc<T>) -> Result<*const T, Self::Error> {
[INFO] [stdout]    |  ___________________________________________________________________^
[INFO] [stdout] 44 | |         log::debug!(
[INFO] [stdout] 45 | |             "<ArcMarshaler<{ty}> as ToForeign<{ty}, {o}>>::to_foreign",
[INFO] [stdout] 46 | |             ty = std::any::type_name::<T>(),
[INFO] [stdout] ...  |
[INFO] [stdout] 56 | |         Ok(Arc::into_raw(local))
[INFO] [stdout] 57 | |     }
[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<*const T, Infallible>
[INFO] [stdout]   --> src/arc.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         Ok(Arc::into_raw(local))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]   --> src/bool.rs:24:64
[INFO] [stdout]    |
[INFO] [stdout] 24 |       unsafe fn from_foreign(i: u8) -> Result<bool, Self::Error> {
[INFO] [stdout]    |  ________________________________________________________________^
[INFO] [stdout] 25 | |         Ok(i != 0)
[INFO] [stdout] 26 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]   --> src/bool.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         Ok(i != 0)
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cffi` (lib) due to 17 previous errors; 1 warning emitted
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]   --> src/bool.rs:33:55
[INFO] [stdout]    |
[INFO] [stdout] 33 |       fn to_foreign(b: bool) -> Result<u8, Self::Error> {
[INFO] [stdout]    |  _______________________________________________________^
[INFO] [stdout] 34 | |         Ok(if b { 1 } else { 0 })
[INFO] [stdout] 35 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]   --> src/bool.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         Ok(if b { 1 } else { 0 })
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<*const T, Infallible>
[INFO] [stdout]   --> src/boxed.rs:74:67
[INFO] [stdout]    |
[INFO] [stdout] 74 |       fn to_foreign(local: Box<T>) -> Result<*const T, Self::Error> {
[INFO] [stdout]    |  ___________________________________________________________________^
[INFO] [stdout] 75 | |         log::debug!(
[INFO] [stdout] 76 | |             "<BoxMarshaler<{ty}> as ToForeign<{ty}, {o}>>::to_foreign",
[INFO] [stdout] 77 | |             ty = std::any::type_name::<T>(),
[INFO] [stdout] ...  |
[INFO] [stdout] 80 | |         Ok(Box::into_raw(local) as *const _ as *const _)
[INFO] [stdout] 81 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<*const T, Infallible>
[INFO] [stdout]   --> src/boxed.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |         Ok(Box::into_raw(local) as *const _ as *const _)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Slice<u8>, Infallible>
[INFO] [stdout]   --> src/pathbuf/unix.rs:54:69
[INFO] [stdout]    |
[INFO] [stdout] 54 |       fn to_foreign(input: PathBuf) -> Result<Slice<u8>, Self::Error> {
[INFO] [stdout]    |  _____________________________________________________________________^
[INFO] [stdout] 55 | |         use std::os::unix::ffi::OsStringExt;
[INFO] [stdout] 56 | |
[INFO] [stdout] 57 | |         let vec = input.into_os_string().into_vec();
[INFO] [stdout] 58 | |         VecMarshaler::to_foreign(vec)
[INFO] [stdout] 59 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Slice<u8>, Infallible>
[INFO] [stdout]   --> src/pathbuf/unix.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         VecMarshaler::to_foreign(vec)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Slice<u8>, Infallible>
[INFO] [stdout]   --> src/pathbuf/unix.rs:68:31
[INFO] [stdout]    |
[INFO] [stdout] 68 |         input.and_then(|x| Ok(PathBufMarshaler::to_foreign(x).unwrap()))
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Slice<u8>, Infallible>
[INFO] [stdout]   --> src/string.rs:27:69
[INFO] [stdout]    |
[INFO] [stdout] 27 |       fn to_foreign(string: String) -> Result<Slice<u8>, Self::Error> {
[INFO] [stdout]    |  _____________________________________________________________________^
[INFO] [stdout] 28 | |         VecMarshaler::to_foreign(string.into_bytes())
[INFO] [stdout] 29 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Slice<u8>, Infallible>
[INFO] [stdout]   --> src/string.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         VecMarshaler::to_foreign(string.into_bytes())
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Slice<u8>, Infallible>
[INFO] [stdout]   --> src/string.rs:37:32
[INFO] [stdout]    |
[INFO] [stdout] 37 |         result.and_then(|v| Ok(StringMarshaler::to_foreign(v).unwrap()))
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Slice<u8>, Infallible>
[INFO] [stdout]   --> src/string.rs:48:27
[INFO] [stdout]    |
[INFO] [stdout] 48 |             Some(v) => Ok(StringMarshaler::to_foreign(v).unwrap()),
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Slice<T>, Infallible>
[INFO] [stdout]   --> src/vec.rs:29:69
[INFO] [stdout]    |
[INFO] [stdout] 29 |       fn to_foreign(mut vec: Vec<T>) -> Result<Slice<T>, Self::Error> {
[INFO] [stdout]    |  _____________________________________________________________________^
[INFO] [stdout] 30 | |         vec.shrink_to_fit();
[INFO] [stdout] 31 | |         let len = vec.len();
[INFO] [stdout] 32 | |         let data = vec.as_mut_ptr();
[INFO] [stdout] ...  |
[INFO] [stdout] 42 | |         Ok(raw)
[INFO] [stdout] 43 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Slice<T>, Infallible>
[INFO] [stdout]   --> src/vec.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         Ok(raw)
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/str.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct StrMarshaler<'a>(&'a PhantomData<()>);
[INFO] [stdout]   |            ------------     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<*const T, Infallible>
[INFO] [stdout]   --> src/arc.rs:43:67
[INFO] [stdout]    |
[INFO] [stdout] 43 |       fn to_foreign(local: Arc<T>) -> Result<*const T, Self::Error> {
[INFO] [stdout]    |  ___________________________________________________________________^
[INFO] [stdout] 44 | |         log::debug!(
[INFO] [stdout] 45 | |             "<ArcMarshaler<{ty}> as ToForeign<{ty}, {o}>>::to_foreign",
[INFO] [stdout] 46 | |             ty = std::any::type_name::<T>(),
[INFO] [stdout] ...  |
[INFO] [stdout] 56 | |         Ok(Arc::into_raw(local))
[INFO] [stdout] 57 | |     }
[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<*const T, Infallible>
[INFO] [stdout]   --> src/arc.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         Ok(Arc::into_raw(local))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]   --> src/bool.rs:24:64
[INFO] [stdout]    |
[INFO] [stdout] 24 |       unsafe fn from_foreign(i: u8) -> Result<bool, Self::Error> {
[INFO] [stdout]    |  ________________________________________________________________^
[INFO] [stdout] 25 | |         Ok(i != 0)
[INFO] [stdout] 26 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]   --> src/bool.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         Ok(i != 0)
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]   --> src/bool.rs:33:55
[INFO] [stdout]    |
[INFO] [stdout] 33 |       fn to_foreign(b: bool) -> Result<u8, Self::Error> {
[INFO] [stdout]    |  _______________________________________________________^
[INFO] [stdout] 34 | |         Ok(if b { 1 } else { 0 })
[INFO] [stdout] 35 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]   --> src/bool.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         Ok(if b { 1 } else { 0 })
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<*const T, Infallible>
[INFO] [stdout]   --> src/boxed.rs:74:67
[INFO] [stdout]    |
[INFO] [stdout] 74 |       fn to_foreign(local: Box<T>) -> Result<*const T, Self::Error> {
[INFO] [stdout]    |  ___________________________________________________________________^
[INFO] [stdout] 75 | |         log::debug!(
[INFO] [stdout] 76 | |             "<BoxMarshaler<{ty}> as ToForeign<{ty}, {o}>>::to_foreign",
[INFO] [stdout] 77 | |             ty = std::any::type_name::<T>(),
[INFO] [stdout] ...  |
[INFO] [stdout] 80 | |         Ok(Box::into_raw(local) as *const _ as *const _)
[INFO] [stdout] 81 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<*const T, Infallible>
[INFO] [stdout]   --> src/boxed.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |         Ok(Box::into_raw(local) as *const _ as *const _)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Slice<u8>, Infallible>
[INFO] [stdout]   --> src/pathbuf/unix.rs:54:69
[INFO] [stdout]    |
[INFO] [stdout] 54 |       fn to_foreign(input: PathBuf) -> Result<Slice<u8>, Self::Error> {
[INFO] [stdout]    |  _____________________________________________________________________^
[INFO] [stdout] 55 | |         use std::os::unix::ffi::OsStringExt;
[INFO] [stdout] 56 | |
[INFO] [stdout] 57 | |         let vec = input.into_os_string().into_vec();
[INFO] [stdout] 58 | |         VecMarshaler::to_foreign(vec)
[INFO] [stdout] 59 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Slice<u8>, Infallible>
[INFO] [stdout]   --> src/pathbuf/unix.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         VecMarshaler::to_foreign(vec)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Slice<u8>, Infallible>
[INFO] [stdout]   --> src/pathbuf/unix.rs:68:31
[INFO] [stdout]    |
[INFO] [stdout] 68 |         input.and_then(|x| Ok(PathBufMarshaler::to_foreign(x).unwrap()))
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Slice<u8>, Infallible>
[INFO] [stdout]   --> src/string.rs:27:69
[INFO] [stdout]    |
[INFO] [stdout] 27 |       fn to_foreign(string: String) -> Result<Slice<u8>, Self::Error> {
[INFO] [stdout]    |  _____________________________________________________________________^
[INFO] [stdout] 28 | |         VecMarshaler::to_foreign(string.into_bytes())
[INFO] [stdout] 29 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Slice<u8>, Infallible>
[INFO] [stdout]   --> src/string.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         VecMarshaler::to_foreign(string.into_bytes())
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Slice<u8>, Infallible>
[INFO] [stdout]   --> src/string.rs:37:32
[INFO] [stdout]    |
[INFO] [stdout] 37 |         result.and_then(|v| Ok(StringMarshaler::to_foreign(v).unwrap()))
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Slice<u8>, Infallible>
[INFO] [stdout]   --> src/string.rs:48:27
[INFO] [stdout]    |
[INFO] [stdout] 48 |             Some(v) => Ok(StringMarshaler::to_foreign(v).unwrap()),
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Slice<T>, Infallible>
[INFO] [stdout]   --> src/vec.rs:29:69
[INFO] [stdout]    |
[INFO] [stdout] 29 |       fn to_foreign(mut vec: Vec<T>) -> Result<Slice<T>, Self::Error> {
[INFO] [stdout]    |  _____________________________________________________________________^
[INFO] [stdout] 30 | |         vec.shrink_to_fit();
[INFO] [stdout] 31 | |         let len = vec.len();
[INFO] [stdout] 32 | |         let data = vec.as_mut_ptr();
[INFO] [stdout] ...  |
[INFO] [stdout] 42 | |         Ok(raw)
[INFO] [stdout] 43 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Slice<T>, Infallible>
[INFO] [stdout]   --> src/vec.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         Ok(raw)
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cffi` (lib test) due to 17 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "0e6cd187206f7c14c9dd673b05fa9a920128e7c835190692291b9aab22923a12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e6cd187206f7c14c9dd673b05fa9a920128e7c835190692291b9aab22923a12", kill_on_drop: false }`
[INFO] [stdout] 0e6cd187206f7c14c9dd673b05fa9a920128e7c835190692291b9aab22923a12
