[INFO] fetching crate uapi 0.2.13...
[INFO] testing uapi-0.2.13 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate uapi 0.2.13 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate uapi 0.2.13
[INFO] finished tweaking crates.io crate uapi 0.2.13
[INFO] tweaked toml for crates.io crate uapi 0.2.13 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate uapi 0.2.13 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 29 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db5e1fe044a5986eee1b73b1fd5f5e1ad0cd43c88dfb2de22749ca84fabd0e60
[INFO] running `Command { std: "docker" "start" "-a" "db5e1fe044a5986eee1b73b1fd5f5e1ad0cd43c88dfb2de22749ca84fabd0e60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db5e1fe044a5986eee1b73b1fd5f5e1ad0cd43c88dfb2de22749ca84fabd0e60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db5e1fe044a5986eee1b73b1fd5f5e1ad0cd43c88dfb2de22749ca84fabd0e60", kill_on_drop: false }`
[INFO] [stdout] db5e1fe044a5986eee1b73b1fd5f5e1ad0cd43c88dfb2de22749ca84fabd0e60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e5b4a9d4997ca53b50c1773e13d72e2c57859b520df5416ff71ff955515976c
[INFO] running `Command { std: "docker" "start" "-a" "2e5b4a9d4997ca53b50c1773e13d72e2c57859b520df5416ff71ff955515976c", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling find-msvc-tools v0.1.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling cc v1.2.45
[INFO] [stderr]    Compiling uapi v0.2.13 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling uapi-proc v0.0.5
[INFO] [stdout] warning: unexpected `cfg` condition value: `alpha`
[INFO] [stdout]  --> src/c/linux.rs:8:18
[INFO] [stdout]   |
[INFO] [stdout] 8 |     if #[cfg(not(target_arch = "alpha"))] {
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `target_arch` are: `aarch64`, `amdgpu`, `arm`, `arm64ec`, `avr`, `bpf`, `csky`, `hexagon`, `loongarch32`, `loongarch64`, `m68k`, `mips`, `mips32r6`, `mips64`, `mips64r6`, `msp430`, `nvptx64`, `powerpc`, `powerpc64`, `riscv32`, `riscv64`, `s390x`, `sparc`, `sparc64`, `wasm32`, `wasm64`, `x86`, `x86_64`, and `xtensa`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/file/mod.rs:59:11
[INFO] [stdout]    |
[INFO] [stdout] 59 |     bufs: &mut T,
[INFO] [stdout]    |           ^^^^^^ the lifetime is elided here
[INFO] [stdout] 60 | ) -> Result<InitializedIovec> {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 60 | ) -> Result<InitializedIovec<'_>> {
[INFO] [stdout]    |                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/file/mod.rs:87:11
[INFO] [stdout]    |
[INFO] [stdout] 87 |     bufs: &mut T,
[INFO] [stdout]    |           ^^^^^^ the lifetime is elided here
[INFO] [stdout] 88 |     offset: c::off_t,
[INFO] [stdout] 89 | ) -> Result<InitializedIovec> {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 89 | ) -> Result<InitializedIovec<'_>> {
[INFO] [stdout]    |                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/file/linux.rs:109:10
[INFO] [stdout]     |
[INFO] [stdout] 109 |     buf: &mut T,
[INFO] [stdout]     |          ^^^^^^ the lifetime is elided here
[INFO] [stdout] 110 | ) -> Result<impl IntoIterator<Item = InotifyEvent>> {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 110 | ) -> Result<impl IntoIterator<Item = InotifyEvent<'_>>> {
[INFO] [stdout]     |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/file/linux.rs:244:11
[INFO] [stdout]     |
[INFO] [stdout] 244 |     bufs: &mut T,
[INFO] [stdout]     |           ^^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 247 | ) -> Result<InitializedIovec> {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 247 | ) -> Result<InitializedIovec<'_>> {
[INFO] [stdout]     |                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/socket/linux/netlink.rs:218:34
[INFO] [stdout]     |
[INFO] [stdout] 218 |     pub fn nest<H2: NlmsgHeader>(&mut self, header: H2) -> Result<NlmsgWriter<H2>> {
[INFO] [stdout]     |                                  ^^^^^^^^^                        ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 218 |     pub fn nest<H2: NlmsgHeader>(&mut self, header: H2) -> Result<NlmsgWriter<'_, H2>> {
[INFO] [stdout]     |                                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.60s
[INFO] running `Command { std: "docker" "inspect" "2e5b4a9d4997ca53b50c1773e13d72e2c57859b520df5416ff71ff955515976c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e5b4a9d4997ca53b50c1773e13d72e2c57859b520df5416ff71ff955515976c", kill_on_drop: false }`
[INFO] [stdout] 2e5b4a9d4997ca53b50c1773e13d72e2c57859b520df5416ff71ff955515976c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fc7b31c4dd30a81ce46254d32a98bcbf7d04dff3635ad11e7bb1065e2417055
[INFO] running `Command { std: "docker" "start" "-a" "6fc7b31c4dd30a81ce46254d32a98bcbf7d04dff3635ad11e7bb1065e2417055", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stdout] warning: unexpected `cfg` condition value: `alpha`
[INFO] [stdout]  --> src/c/linux.rs:8:18
[INFO] [stdout]   |
[INFO] [stdout] 8 |     if #[cfg(not(target_arch = "alpha"))] {
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `target_arch` are: `aarch64`, `amdgpu`, `arm`, `arm64ec`, `avr`, `bpf`, `csky`, `hexagon`, `loongarch32`, `loongarch64`, `m68k`, `mips`, `mips32r6`, `mips64`, `mips64r6`, `msp430`, `nvptx64`, `powerpc`, `powerpc64`, `riscv32`, `riscv64`, `s390x`, `sparc`, `sparc64`, `wasm32`, `wasm64`, `x86`, `x86_64`, and `xtensa`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/file/mod.rs:59:11
[INFO] [stdout]    |
[INFO] [stdout] 59 |     bufs: &mut T,
[INFO] [stdout]    |           ^^^^^^ the lifetime is elided here
[INFO] [stdout] 60 | ) -> Result<InitializedIovec> {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 60 | ) -> Result<InitializedIovec<'_>> {
[INFO] [stdout]    |                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/file/mod.rs:87:11
[INFO] [stdout]    |
[INFO] [stdout] 87 |     bufs: &mut T,
[INFO] [stdout]    |           ^^^^^^ the lifetime is elided here
[INFO] [stdout] 88 |     offset: c::off_t,
[INFO] [stdout] 89 | ) -> Result<InitializedIovec> {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 89 | ) -> Result<InitializedIovec<'_>> {
[INFO] [stdout]    |                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/file/linux.rs:109:10
[INFO] [stdout]     |
[INFO] [stdout] 109 |     buf: &mut T,
[INFO] [stdout]     |          ^^^^^^ the lifetime is elided here
[INFO] [stdout] 110 | ) -> Result<impl IntoIterator<Item = InotifyEvent>> {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 110 | ) -> Result<impl IntoIterator<Item = InotifyEvent<'_>>> {
[INFO] [stdout]     |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/file/linux.rs:244:11
[INFO] [stdout]     |
[INFO] [stdout] 244 |     bufs: &mut T,
[INFO] [stdout]     |           ^^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 247 | ) -> Result<InitializedIovec> {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 247 | ) -> Result<InitializedIovec<'_>> {
[INFO] [stdout]     |                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/socket/linux/netlink.rs:218:34
[INFO] [stdout]     |
[INFO] [stdout] 218 |     pub fn nest<H2: NlmsgHeader>(&mut self, header: H2) -> Result<NlmsgWriter<H2>> {
[INFO] [stdout]     |                                  ^^^^^^^^^                        ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 218 |     pub fn nest<H2: NlmsgHeader>(&mut self, header: H2) -> Result<NlmsgWriter<'_, H2>> {
[INFO] [stdout]     |                                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling uapi v0.2.13 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `testutils`
[INFO] [stdout]  --> tests/process5.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use testutils::*;
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `testutils`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `testutils`, use `cargo add testutils` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `testutils`
[INFO] [stdout]  --> tests/process1.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use testutils::*;
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `testutils`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `testutils`, use `cargo add testutils` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `uapi` (test "process1") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0432]: unresolved import `testutils`
[INFO] [stdout]  --> tests/fcntl_lck.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use testutils::*;
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `testutils`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `testutils`, use `cargo add testutils` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `uapi` (test "process5") due to 1 previous error
[INFO] [stdout] error[E0432]: unresolved import `testutils`
[INFO] [stdout]  --> tests/mknod_mode.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use testutils::*;
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `testutils`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `testutils`, use `cargo add testutils` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `testutils`
[INFO] [stdout]  --> tests/process3.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use testutils::*;
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `testutils`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `testutils`, use `cargo add testutils` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `uapi` (test "process3") due to 1 previous error
[INFO] [stderr] error: could not compile `uapi` (test "mknod_mode") due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `uapi` (test "fcntl_lck") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "6fc7b31c4dd30a81ce46254d32a98bcbf7d04dff3635ad11e7bb1065e2417055", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fc7b31c4dd30a81ce46254d32a98bcbf7d04dff3635ad11e7bb1065e2417055", kill_on_drop: false }`
[INFO] [stdout] 6fc7b31c4dd30a81ce46254d32a98bcbf7d04dff3635ad11e7bb1065e2417055
