Using rust linters with ALE only considers the `Cargo.toml` file at the moment the vim process started.

## Information

**VIM version**

VIM - Vi IMproved 8.2 (2019 Dec 12, compiled Feb 24 2022 18:41:57)
Correções incluídas: 1-4464

Operating System:
Linux ultrarobson 5.16.16-arch1-1 #1 SMP PREEMPT Mon, 21 Mar 2022 22:59:40 +0000 x86_64 GNU/Linux

## What went wrong
Using rust linters with ALE only considers the `Cargo.toml` file at the moment the vim process started.

## Reproducing the bug
Using any of the linters `'rustc'` or `'cargo'`, I get the following problem:
1. At a cargo project, I open the `main.rs` file
2. Then I try to use some external crate, let's say I add `use nix::unistd::alarm;` into the file beggining
3. But I haven't added it as a dependecy! So the linter tells me: E0433: failed to resolve: use ...ndeclared crate or module `nix`
4. I go to the `Cargo.toml` file and add under `[dependencies]` the line `nix = "0.23.1" `
5. But the linter still doesn't get it. It should now give me only a warning for the unused import, but it stills gives me the error. Running the linter on another shell only gives the warning.

That is: once the rust linter has ran at least once, it will not "see" any updates that occur to the `Cargo.toml` file in the subsequential lintings.

Mannually running `:ALEStopAllLSPs` solves the issue.

### :ALEInfo when using `cargo`

```
Current Filetype: rust
Available Linters: ['analyzer', 'cargo', 'rls', 'rustc']
Enabled Linters: ['cargo']
Ignored Linters: []
Suggested Fixers:
'remove_trailing_lines' - Remove all blank lines at the end of a file.
'rustfmt' - Fix Rust files with Rustfmt.
'trim_whitespace' - Remove all trailing whitespace characters at the end of every line.
Linter Variables:

let g:ale_rust_cargo_avoid_whole_workspace = 1
let g:ale_rust_cargo_check_all_targets = 0
let g:ale_rust_cargo_check_examples = 0
let g:ale_rust_cargo_check_tests = 0
let g:ale_rust_cargo_clippy_options = ''
let g:ale_rust_cargo_default_feature_behavior = 'default'
let g:ale_rust_cargo_include_features = ''
let g:ale_rust_cargo_target_dir = ''
let g:ale_rust_cargo_use_check = 1
let g:ale_rust_cargo_use_clippy = 0
let g:ale_rust_ignore_error_codes = []
let g:ale_rust_ignore_secondary_spans = 0
Global Variables:

let g:ale_cache_executable_check_failures = 1
let g:ale_change_sign_column_color = 0
let g:ale_command_wrapper = ''
let g:ale_completion_delay = v:null
let g:ale_completion_enabled = 0
let g:ale_completion_max_suggestions = v:null
let g:ale_disable_lsp = 0
let g:ale_echo_cursor = 1
let g:ale_echo_msg_error_str = 'Error'
let g:ale_echo_msg_format = '%code: %%s'
let g:ale_echo_msg_info_str = 'Info'
let g:ale_echo_msg_warning_str = 'Warning'
let g:ale_enabled = 1
let g:ale_fix_on_save = 0
let g:ale_fixers = {'python': ['flake8']}
let g:ale_history_enabled = 1
let g:ale_history_log_output = 1
let g:ale_keep_list_window_open = 0
let g:ale_lint_delay = 200
let g:ale_lint_on_enter = 1
let g:ale_lint_on_filetype_changed = 1
let g:ale_lint_on_insert_leave = 1
let g:ale_lint_on_save = 1
let g:ale_lint_on_text_changed = 'never'
let g:ale_linter_aliases = {}
let g:ale_linters = {'solidity': ['solhint'], 'bash': ['shellcheck'], 'rust': ['cargo'], 'python': ['flake8']}
let g:ale_linters_explicit = 0
let g:ale_linters_ignore = {}
let g:ale_list_vertical = 0
let g:ale_list_window_size = 10
let g:ale_loclist_msg_format = '%code: %%s'
let g:ale_max_buffer_history_size = 20
let g:ale_max_signs = -1
let g:ale_maximum_file_size = v:null
let g:ale_open_list = 0
let g:ale_pattern_options = v:null
let g:ale_pattern_options_enabled = v:null
let g:ale_root = {}
let g:ale_set_balloons = 0
let g:ale_set_highlights = 1
let g:ale_set_loclist = 1
let g:ale_set_quickfix = 0
let g:ale_set_signs = 1
let g:ale_sign_column_always = 0
let g:ale_sign_error = 'E>'
let g:ale_sign_info = 'W>'
let g:ale_sign_offset = 1000000
let g:ale_sign_style_error = 'E>'
let g:ale_sign_style_warning = 'W>'
let g:ale_sign_warning = 'W>'
let g:ale_sign_highlight_linenrs = 0
let g:ale_statusline_format = v:null
let g:ale_type_map = {}
let g:ale_use_global_executables = v:null
let g:ale_virtualtext_cursor = 0
let g:ale_warn_about_trailing_blank_lines = 1
let g:ale_warn_about_trailing_whitespace = 1
Command History:

(executable check - success) cargo
(finished - exit code 0) ['/bin/bash', '-c', 'cd ''/home/ttv1/codes/alarm/home-alarm'' && ''cargo'' --version']

<<>>
cargo 1.61.0-nightly (1ef1e0a 2022-03-31)
<<>>

(finished - exit code 0) ['/bin/bash', '-c', 'cd ''/home/ttv1/codes/alarm/home-alarm'' && cargo check --frozen --message-format=json -q']

<<>>
{"reason":"compiler-artifact","package_id":"cfg-if 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)","manifest_path":"/home/ttv1/.cargo/registry/src/github.com-1ecc6299db9ec823/cfg-if-1.0.0/Cargo.toml","target":{"kind":["lib"],"crate_types":["lib"],"name":"cfg-if","src_path":"/home/ttv1/.cargo/registry/src/github.com-1ecc6299db9ec823/cfg-if-1.0.0/src/lib.rs","edition":"2018","doc":true,"doctest":true,"test":true},"profile":{"opt_level":"0","debuginfo":2,"debug_assertions":true,"overflow_checks":true,"test":false},"features":[],"filenames":["/home/ttv1/codes/alarm/home-alarm/target/debug/deps/libcfg_if-88879d2dc0fa106c.rmeta"],"executable":null,"fresh":false}
{"reason":"compiler-artifact","package_id":"bitflags 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)","manifest_path":"/home/ttv1/.cargo/registry/src/github.com-1ecc6299db9ec823/bitflags-1.3.2/Cargo.toml","target":{"kind":["lib"],"crate_types":["lib"],"name":"bitflags","src_path":"/home/ttv1/.cargo/registry/src/github.com-1ecc6299db9ec823/bitflags-1.3.2/src/lib.rs","edition":"2018","doc":true,"doctest":true,"test":true},"profile":{"opt_level":"0","debuginfo":2,"debug_assertions":true,"overflow_checks":true,"test":false},"features":["default"],"filenames":["/home/ttv1/codes/alarm/home-alarm/target/debug/deps/libbitflags-f75283d3dcd3daad.rmeta"],"executable":null,"fresh":false}
{"reason":"compiler-artifact","package_id":"autocfg 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)","manifest_path":"/home/ttv1/.cargo/registry/src/github.com-1ecc6299db9ec823/autocfg-1.1.0/Cargo.toml","target":{"kind":["lib"],"crate_types":["lib"],"name":"autocfg","src_path":"/home/ttv1/.cargo/registry/src/github.com-1ecc6299db9ec823/autocfg-1.1.0/src/lib.rs","edition":"2015","doc":true,"doctest":true,"test":true},"profile":{"opt_level":"0","debuginfo":2,"debug_assertions":true,"overflow_checks":true,"test":false},"features":[],"filenames":["/home/ttv1/codes/alarm/home-alarm/target/debug/deps/libautocfg-5788d3b0c0ad14fb.rlib","/home/ttv1/codes/alarm/home-alarm/target/debug/deps/libautocfg-5788d3b0c0ad14fb.rmeta"],"executable":null,"fresh":false}
{"reason":"compiler-artifact","package_id":"libc 0.2.121 (registry+https://github.com/rust-lang/crates.io-index)","manifest_path":"/home/ttv1/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.121/Cargo.toml","target":{"kind":["custom-build"],"crate_types":["bin"],"name":"build-script-build","src_path":"/home/ttv1/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.121/build.rs","edition":"2015","doc":false,"doctest":false,"test":false},"profile":{"opt_level":"0","debuginfo":2,"debug_assertions":true,"overflow_checks":true,"test":false},"features":["default","extra_traits","std"],"filenames":["/home/ttv1/codes/alarm/home-alarm/target/debug/build/libc-289ae8f3fda9458e/build-script-build"],"executable":null,"fresh":false}
{"reason":"build-script-executed","package_id":"libc 0.2.121 (registry+https://github.com/rust-lang/crates.io-index)","linked_libs":[],"linked_paths":[],"cfgs":["freebsd11","libc_priv_mod_use","libc_union","libc_const_size_of","libc_align","libc_core_cvoid","libc_packedN","libc_cfg_target_vendor","libc_non_exhaustive","libc_ptr_addr_of"],"env":[],"out_dir":"/home/ttv1/codes/alarm/home-alarm/target/debug/build/libc-f296aa9f3e586421/out"}
{"reason":"compiler-artifact","package_id":"memoffset 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)","manifest_path":"/home/ttv1/.cargo/registry/src/github.com-1ecc6299db9ec823/memoffset-0.6.5/Cargo.toml","target":{"kind":["custom-build"],"crate_types":["bin"],"name":"build-script-build","src_path":"/home/ttv1/.cargo/registry/src/github.com-1ecc6299db9ec823/memoffset-0.6.5/build.rs","edition":"2015","doc":false,"doctest":false,"test":false},"profile":{"opt_level":"0","debuginfo":2,"debug_assertions":true,"overflow_checks":true,"test":false},"features":["default"],"filenames":["/home/ttv1/codes/alarm/home-alarm/target/debug/build/memoffset-faa1542f4d600245/build-script-build"],"executable":null,"fresh":false}
{"reason":"build-script-executed","package_id":"memoffset 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)","linked_libs":[],"linked_paths":[],"cfgs":["tuple_ty","allow_clippy","maybe_uninit","doctests","raw_ref_macros"],"env":[],"out_dir":"/home/ttv1/codes/alarm/home-alarm/target/debug/build/memoffset-851c5101ea5ade3a/out"}
{"reason":"compiler-artifact","package_id":"memoffset 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)","manifest_path":"/home/ttv1/.cargo/registry/src/github.com-1ecc6299db9ec823/memoffset-0.6.5/Cargo.toml","target":{"kind":["lib"],"crate_types":["lib"],"name":"memoffset","src_path":"/home/ttv1/.cargo/registry/src/github.com-1ecc6299db9ec823/memoffset-0.6.5/src/lib.rs","edition":"2015","doc":true,"doctest":true,"test":true},"profile":{"opt_level":"0","debuginfo":2,"debug_assertions":true,"overflow_checks":true,"test":false},"features":["default"],"filenames":["/home/ttv1/codes/alarm/home-alarm/target/debug/deps/libmemoffset-aed047b9c650959e.rmeta"],"executable":null,"fresh":false}
{"reason":"compiler-artifact","package_id":"libc 0.2.121 (registry+https://github.com/rust-lang/crates.io-index)","manifest_path":"/home/ttv1/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.121/Cargo.toml","target":{"kind":["lib"],"crate_types":["lib"],"name":"libc","src_path":"/home/ttv1/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.121/src/lib.rs","edition":"2015","doc":true,"doctest":true,"test":true},"profile":{"opt_level":"0","debuginfo":2,"debug_assertions":true,"overflow_checks":true,"test":false},"features":["default","extra_traits","std"],"filenames":["/home/ttv1/codes/alarm/home-alarm/target/debug/deps/liblibc-7b4c0120d0a5d371.rmeta"],"executable":null,"fresh":false}
{"reason":"compiler-artifact","package_id":"nix 0.23.1 (registry+https://github.com/rust-lang/crates.io-index)","manifest_path":"/home/ttv1/.cargo/registry/src/github.com-1ecc6299db9ec823/nix-0.23.1/Cargo.toml","target":{"kind":["lib"],"crate_types":["lib"],"name":"nix","src_path":"/home/ttv1/.cargo/registry/src/github.com-1ecc6299db9ec823/nix-0.23.1/src/lib.rs","edition":"2018","doc":true,"doctest":true,"test":true},"profile":{"opt_level":"0","debuginfo":2,"debug_assertions":true,"overflow_checks":true,"test":false},"features":[],"filenames":["/home/ttv1/codes/alarm/home-alarm/target/debug/deps/libnix-b45d3578deaca2c2.rmeta"],"executable":null,"fresh":false}
{"reason":"compiler-message","package_id":"home-alarm 0.1.0 (path+file:///home/ttv1/codes/alarm/home-alarm)","manifest_path":"/home/ttv1/codes/alarm/home-alarm/Cargo.toml","target":{"kind":["bin"],"crate_types":["bin"],"name":"home-alarm","src_path":"/home/ttv1/codes/alarm/home-alarm/src/main.rs","edition":"2021","doc":true,"doctest":false,"test":true},"message":{"rendered":"warning: unused import: `nix::unistd::alarm`\n --> src/main.rs:1:5\n |\n1 | use nix::unistd::alarm;\n | ^^^^^^^^^^^^^^^^^^\n |\n = note: `#[warn(unused_imports)]` on by default\n\n","children":[{"children":[],"code":null,"level":"note","message":"`#[warn(unused_imports)]` on by default","rendered":null,"spans":[]},{"children":[],"code":null,"level":"help","message":"remove the whole `use` item","rendered":null,"spans":[{"byte_end":23,"byte_start":0,"column_end":24,"column_start":1,"expansion":null,"file_name":"src/main.rs","is_primary":true,"label":null,"line_end":1,"line_start":1,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","text":[{"highlight_end":24,"highlight_start":1,"text":"use nix::unistd::alarm;"}]}]}],"code":{"code":"unused_imports","explanation":null},"level":"warning","message":"unused import: `nix::unistd::alarm`","spans":[{"byte_end":22,"byte_start":4,"column_end":23,"column_start":5,"expansion":null,"file_name":"src/main.rs","is_primary":true,"label":null,"line_end":1,"line_start":1,"suggested_replacement":null,"suggestion_applicability":null,"text":[{"highlight_end":23,"highlight_start":5,"text":"use nix::unistd::alarm;"}]}]}}
{"reason":"compiler-message","package_id":"home-alarm 0.1.0 (path+file:///home/ttv1/codes/alarm/home-alarm)","manifest_path":"/home/ttv1/codes/alarm/home-alarm/Cargo.toml","target":{"kind":["bin"],"crate_types":["bin"],"name":"home-alarm","src_path":"/home/ttv1/codes/alarm/home-alarm/src/main.rs","edition":"2021","doc":true,"doctest":false,"test":true},"message":{"rendered":"warning: 1 warning emitted\n\n","children":[],"code":null,"level":"warning","message":"1 warning emitted","spans":[]}}
{"reason":"compiler-artifact","package_id":"home-alarm 0.1.0 (path+file:///home/ttv1/codes/alarm/home-alarm)","manifest_path":"/home/ttv1/codes/alarm/home-alarm/Cargo.toml","target":{"kind":["bin"],"crate_types":["bin"],"name":"home-alarm","src_path":"/home/ttv1/codes/alarm/home-alarm/src/main.rs","edition":"2021","doc":true,"doctest":false,"test":true},"profile":{"opt_level":"0","debuginfo":2,"debug_assertions":true,"overflow_checks":true,"test":false},"features":[],"filenames":["/home/ttv1/codes/alarm/home-alarm/target/debug/deps/libhome_alarm-d61a70625f090cd0.rmeta"],"executable":null,"fresh":false}
{"reason":"build-finished","success":true}
<<>>

(finished - exit code 101) ['/bin/bash', '-c', 'cd ''/home/ttv1/codes/alarm/home-alarm'' && cargo check --frozen --message-format=json -q']

<<>>
error: the lock file /home/ttv1/codes/alarm/home-alarm/Cargo.lock needs to be updated but --frozen was passed to prevent this
If you want to try to generate the lock file without accessing the network, remove the --frozen flag and use --offline instead.
<<>>
```

### :ALEInfo when using `rustc`

```

Current Filetype: rust
Available Linters: ['analyzer', 'cargo', 'rls', 'rustc']
Enabled Linters: ['rustc']
Ignored Linters: []
Suggested Fixers:
'remove_trailing_lines' - Remove all blank lines at the end of a file.
'rustfmt' - Fix Rust files with Rustfmt.
'trim_whitespace' - Remove all trailing whitespace characters at the end of every line.
Linter Variables:

let g:ale_rust_ignore_error_codes = []
let g:ale_rust_ignore_secondary_spans = 0
let g:ale_rust_rustc_options = '-Z no-codegen'
Global Variables:

let g:ale_cache_executable_check_failures = 1
let g:ale_change_sign_column_color = 0
let g:ale_command_wrapper = ''
let g:ale_completion_delay = v:null
let g:ale_completion_enabled = 0
let g:ale_completion_max_suggestions = v:null
let g:ale_disable_lsp = 0
let g:ale_echo_cursor = 1
let g:ale_echo_msg_error_str = 'Error'
let g:ale_echo_msg_format = '%code: %%s'
let g:ale_echo_msg_info_str = 'Info'
let g:ale_echo_msg_warning_str = 'Warning'
let g:ale_enabled = 1
let g:ale_fix_on_save = 0
let g:ale_fixers = {'python': ['flake8']}
let g:ale_history_enabled = 1
let g:ale_history_log_output = 1
let g:ale_keep_list_window_open = 0
let g:ale_lint_delay = 200
let g:ale_lint_on_enter = 1
let g:ale_lint_on_filetype_changed = 1
let g:ale_lint_on_insert_leave = 1
let g:ale_lint_on_save = 1
let g:ale_lint_on_text_changed = 'never'
let g:ale_linter_aliases = {}
let g:ale_linters = {'solidity': ['solhint'], 'bash': ['shellcheck'], 'rust': ['rustc'], 'python': ['flake8']}
let g:ale_linters_explicit = 0
let g:ale_linters_ignore = {}
let g:ale_list_vertical = 0
let g:ale_list_window_size = 10
let g:ale_loclist_msg_format = '%code: %%s'
let g:ale_max_buffer_history_size = 20
let g:ale_max_signs = -1
let g:ale_maximum_file_size = v:null
let g:ale_open_list = 0
let g:ale_pattern_options = v:null
let g:ale_pattern_options_enabled = v:null
let g:ale_root = {}
let g:ale_set_balloons = 0
let g:ale_set_highlights = 1
let g:ale_set_loclist = 1
let g:ale_set_quickfix = 0
let g:ale_set_signs = 1
let g:ale_sign_column_always = 0
let g:ale_sign_error = 'E>'
let g:ale_sign_info = 'W>'
let g:ale_sign_offset = 1000000
let g:ale_sign_style_error = 'E>'
let g:ale_sign_style_warning = 'W>'
let g:ale_sign_warning = 'W>'
let g:ale_sign_highlight_linenrs = 0
let g:ale_statusline_format = v:null
let g:ale_type_map = {}
let g:ale_use_global_executables = v:null
let g:ale_virtualtext_cursor = 0
let g:ale_warn_about_trailing_blank_lines = 1
let g:ale_warn_about_trailing_whitespace = 1
Command History:

(executable check - success) rustc
(finished - exit code 1) ['/bin/bash', '-c', 'rustc --error-format=json -Z no-codegen -L ''/home/ttv1/codes/alarm/home-alarm/target/debug/deps'' -L ''/home/ttv1/codes/alarm/home-alarm/target/release/deps'' - < ''/tmp/vQPReLR/1/main.rs''']

<<>>
{"message":"failed to resolve: maybe a missing crate `nix`?","code":{"code":"E0433","explanation":"An undeclared crate, module, or type was used.\n\nErroneous code example:\n\n```compile_fail,E0433\nlet map = HashMap::new();\n// error: failed to resolve: use of undeclared type `HashMap`\n```\n\nPlease verify you didn't misspell the type/module's name or that you didn't\nforget to import it:\n\n```\nuse std::collections::HashMap; // HashMap has been imported.\nlet map: HashMap = HashMap::new(); // So it can be used!\n```\n\nIf you've expected to use a crate name:\n\n```compile_fail\nuse ferris_wheel::BigO;\n// error: failed to resolve: use of undeclared crate or module `ferris_wheel`\n```\n\nMake sure the crate has been added as a dependency in `Cargo.toml`.\n\nTo use a module from your current crate, add the `crate::` prefix to the path.\n"},"level":"error","spans":[{"file_name":"","byte_start":4,"byte_end":7,"line_start":1,"line_end":1,"column_start":5,"column_end":8,"is_primary":true,"text":[{"text":"use nix::unistd::alarm;","highlight_start":5,"highlight_end":8}],"label":"maybe a missing crate `nix`?","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[],"rendered":"error[E0433]: failed to resolve: maybe a missing crate `nix`?\n --> :1:5\n |\n1 | use nix::unistd::alarm;\n | ^^^ maybe a missing crate `nix`?\n\n"}
{"message":"aborting due to previous error","code":null,"level":"error","spans":[],"children":[],"rendered":"error: aborting due to previous error\n\n"}
{"message":"For more information about this error, try `rustc --explain E0433`.","code":null,"level":"failure-note","spans":[],"children":[],"rendered":"For more information about this error, try `rustc --explain E0433`.\n"}
<<>>

(finished - exit code 1) ['/bin/bash', '-c', 'rustc --error-format=json -Z no-codegen -L ''/home/ttv1/codes/alarm/home-alarm/target/debug/deps'' -L ''/home/ttv1/codes/alarm/home-alarm/target/release/deps'' - < ''/tmp/vQPReLR/3/main.rs''']

<<>>
{"message":"failed to resolve: maybe a missing crate `nix`?","code":{"code":"E0433","explanation":"An undeclared crate, module, or type was used.\n\nErroneous code example:\n\n```compile_fail,E0433\nlet map = HashMap::new();\n// error: failed to resolve: use of undeclared type `HashMap`\n```\n\nPlease verify you didn't misspell the type/module's name or that you didn't\nforget to import it:\n\n```\nuse std::collections::HashMap; // HashMap has been imported.\nlet map: HashMap = HashMap::new(); // So it can be used!\n```\n\nIf you've expected to use a crate name:\n\n```compile_fail\nuse ferris_wheel::BigO;\n// error: failed to resolve: use of undeclared crate or module `ferris_wheel`\n```\n\nMake sure the crate has been added as a dependency in `Cargo.toml`.\n\nTo use a module from your current crate, add the `crate::` prefix to the path.\n"},"level":"error","spans":[{"file_name":"","byte_start":4,"byte_end":7,"line_start":1,"line_end":1,"column_start":5,"column_end":8,"is_primary":true,"text":[{"text":"use nix::unistd::alarm;","highlight_start":5,"highlight_end":8}],"label":"maybe a missing crate `nix`?","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[],"rendered":"error[E0433]: failed to resolve: maybe a missing crate `nix`?\n --> :1:5\n |\n1 | use nix::unistd::alarm;\n | ^^^ maybe a missing crate `nix`?\n\n"}
{"message":"aborting due to previous error","code":null,"level":"error","spans":[],"children":[],"rendered":"error: aborting due to previous error\n\n"}
{"message":"For more information about this error, try `rustc --explain E0433`.","code":null,"level":"failure-note","spans":[],"children":[],"rendered":"For more information about this error, try `rustc --explain E0433`.\n"}
<<>>

(finished - exit code 1) ['/bin/bash', '-c', 'rustc --error-format=json -Z no-codegen -L ''/home/ttv1/codes/alarm/home-alarm/target/debug/deps'' -L ''/home/ttv1/codes/alarm/home-alarm/target/release/deps'' - < ''/tmp/vQPReLR/6/main.rs''']

<<>>
{"message":"failed to resolve: maybe a missing crate `nix`?","code":{"code":"E0433","explanation":"An undeclared crate, module, or type was used.\n\nErroneous code example:\n\n```compile_fail,E0433\nlet map = HashMap::new();\n// error: failed to resolve: use of undeclared type `HashMap`\n```\n\nPlease verify you didn't misspell the type/module's name or that you didn't\nforget to import it:\n\n```\nuse std::collections::HashMap; // HashMap has been imported.\nlet map: HashMap = HashMap::new(); // So it can be used!\n```\n\nIf you've expected to use a crate name:\n\n```compile_fail\nuse ferris_wheel::BigO;\n// error: failed to resolve: use of undeclared crate or module `ferris_wheel`\n```\n\nMake sure the crate has been added as a dependency in `Cargo.toml`.\n\nTo use a module from your current crate, add the `crate::` prefix to the path.\n"},"level":"error","spans":[{"file_name":"","byte_start":4,"byte_end":7,"line_start":1,"line_end":1,"column_start":5,"column_end":8,"is_primary":true,"text":[{"text":"use nix::unistd::alarm;","highlight_start":5,"highlight_end":8}],"label":"maybe a missing crate `nix`?","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[],"rendered":"error[E0433]: failed to resolve: maybe a missing crate `nix`?\n --> :1:5\n |\n1 | use nix::unistd::alarm;\n | ^^^ maybe a missing crate `nix`?\n\n"}
{"message":"aborting due to previous error","code":null,"level":"error","spans":[],"children":[],"rendered":"error: aborting due to previous error\n\n"}
{"message":"For more information about this error, try `rustc --explain E0433`.","code":null,"level":"failure-note","spans":[],"children":[],"rendered":"For more information about this error, try `rustc --explain E0433`.\n"}
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```