[INFO] fetching crate nixpkgs-fmt 1.3.0...
[INFO] testing nixpkgs-fmt-1.3.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate nixpkgs-fmt 1.3.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate nixpkgs-fmt 1.3.0
[INFO] finished tweaking crates.io crate nixpkgs-fmt 1.3.0
[INFO] tweaked toml for crates.io crate nixpkgs-fmt 1.3.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nixpkgs-fmt 1.3.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate nixpkgs-fmt 1.3.0 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" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6e006ff30a0e68d39c2a2535122bcfc691b80ce8d0efd1d18cf03366316adf0
[INFO] running `Command { std: "docker" "start" "-a" "b6e006ff30a0e68d39c2a2535122bcfc691b80ce8d0efd1d18cf03366316adf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6e006ff30a0e68d39c2a2535122bcfc691b80ce8d0efd1d18cf03366316adf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6e006ff30a0e68d39c2a2535122bcfc691b80ce8d0efd1d18cf03366316adf0", kill_on_drop: false }`
[INFO] [stdout] b6e006ff30a0e68d39c2a2535122bcfc691b80ce8d0efd1d18cf03366316adf0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a78f61a353f1a796d1465aff7c6125b5f8c4dbf09776140fff56c66bd9798a2
[INFO] running `Command { std: "docker" "start" "-a" "1a78f61a353f1a796d1465aff7c6125b5f8c4dbf09776140fff56c66bd9798a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.26
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling countme v2.0.4
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling serde_json v1.0.71
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling cbitset v0.2.0
[INFO] [stderr]    Compiling regex v1.5.6
[INFO] [stderr]    Compiling text-size v1.1.0
[INFO] [stderr]    Compiling smol_str v0.1.21
[INFO] [stderr]    Compiling rowan v0.12.6
[INFO] [stderr]    Compiling globset v0.4.8
[INFO] [stderr]    Compiling rnix v0.10.2
[INFO] [stderr]    Compiling ignore v0.4.18
[INFO] [stderr]    Compiling nixpkgs-fmt v1.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/pattern.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pred: Arc<dyn (Fn(&SyntaxElement) -> bool)>,
[INFO] [stdout]    |                   ^                          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 28 -     pred: Arc<dyn (Fn(&SyntaxElement) -> bool)>,
[INFO] [stdout] 28 +     pred: Arc<dyn Fn(&SyntaxElement) -> bool>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:90:10
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let (mut text, line_endings) = convert_to_unix_line_endings(text);
[INFO] [stdout]    |          ----^^^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `indent_value` is never read
[INFO] [stdout]    --> src/dsl.rs:300:16
[INFO] [stdout]     |
[INFO] [stdout] 275 | pub(crate) struct IndentRule {
[INFO] [stdout]     |                   ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 300 |     pub(crate) indent_value: IndentValue,
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IndentRule` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:148:39
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn convert_to_unix_line_endings(text: &str) -> (Cow<str>, LineEndings) {
[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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn convert_to_unix_line_endings(text: &str) -> (Cow<'_, str>, LineEndings) {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.56s
[INFO] running `Command { std: "docker" "inspect" "1a78f61a353f1a796d1465aff7c6125b5f8c4dbf09776140fff56c66bd9798a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a78f61a353f1a796d1465aff7c6125b5f8c4dbf09776140fff56c66bd9798a2", kill_on_drop: false }`
[INFO] [stdout] 1a78f61a353f1a796d1465aff7c6125b5f8c4dbf09776140fff56c66bd9798a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ec83ced64414fd4780d95863592c44ca83b41e2afaec916eba238881ccc880e
[INFO] running `Command { std: "docker" "start" "-a" "0ec83ced64414fd4780d95863592c44ca83b41e2afaec916eba238881ccc880e", kill_on_drop: false }`
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/pattern.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pred: Arc<dyn (Fn(&SyntaxElement) -> bool)>,
[INFO] [stdout]    |                   ^                          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 28 -     pred: Arc<dyn (Fn(&SyntaxElement) -> bool)>,
[INFO] [stdout] 28 +     pred: Arc<dyn Fn(&SyntaxElement) -> bool>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:90:10
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let (mut text, line_endings) = convert_to_unix_line_endings(text);
[INFO] [stdout]    |          ----^^^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `indent_value` is never read
[INFO] [stdout]    --> src/dsl.rs:300:16
[INFO] [stdout]     |
[INFO] [stdout] 275 | pub(crate) struct IndentRule {
[INFO] [stdout]     |                   ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 300 |     pub(crate) indent_value: IndentValue,
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IndentRule` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:148:39
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn convert_to_unix_line_endings(text: &str) -> (Cow<str>, LineEndings) {
[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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn convert_to_unix_line_endings(text: &str) -> (Cow<'_, str>, LineEndings) {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling nixpkgs-fmt v1.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/pattern.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pred: Arc<dyn (Fn(&SyntaxElement) -> bool)>,
[INFO] [stdout]    |                   ^                          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 28 -     pred: Arc<dyn (Fn(&SyntaxElement) -> bool)>,
[INFO] [stdout] 28 +     pred: Arc<dyn Fn(&SyntaxElement) -> bool>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:90:10
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let (mut text, line_endings) = convert_to_unix_line_endings(text);
[INFO] [stdout]    |          ----^^^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `indent_value` is never read
[INFO] [stdout]    --> src/dsl.rs:300:16
[INFO] [stdout]     |
[INFO] [stdout] 275 | pub(crate) struct IndentRule {
[INFO] [stdout]     |                   ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 300 |     pub(crate) indent_value: IndentValue,
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IndentRule` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:148:39
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn convert_to_unix_line_endings(text: &str) -> (Cow<str>, LineEndings) {
[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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn convert_to_unix_line_endings(text: &str) -> (Cow<'_, str>, LineEndings) {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.08s
[INFO] running `Command { std: "docker" "inspect" "0ec83ced64414fd4780d95863592c44ca83b41e2afaec916eba238881ccc880e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ec83ced64414fd4780d95863592c44ca83b41e2afaec916eba238881ccc880e", kill_on_drop: false }`
[INFO] [stdout] 0ec83ced64414fd4780d95863592c44ca83b41e2afaec916eba238881ccc880e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] af4a258c30b335b4b810f848981124fc6a02e380367c291d54a10510b9f3923b
[INFO] running `Command { std: "docker" "start" "-a" "af4a258c30b335b4b810f848981124fc6a02e380367c291d54a10510b9f3923b", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/pattern.rs:28:19
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pred: Arc<dyn (Fn(&SyntaxElement) -> bool)>,
[INFO] [stderr]    |                   ^                          ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 28 -     pred: Arc<dyn (Fn(&SyntaxElement) -> bool)>,
[INFO] [stderr] 28 +     pred: Arc<dyn Fn(&SyntaxElement) -> bool>,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:90:10
[INFO] [stderr]    |
[INFO] [stderr] 90 |     let (mut text, line_endings) = convert_to_unix_line_endings(text);
[INFO] [stderr]    |          ----^^^^
[INFO] [stderr]    |          |
[INFO] [stderr]    |          help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `indent_value` is never read
[INFO] [stderr]    --> src/dsl.rs:300:16
[INFO] [stderr]     |
[INFO] [stderr] 275 | pub(crate) struct IndentRule {
[INFO] [stderr]     |                   ---------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 300 |     pub(crate) indent_value: IndentValue,
[INFO] [stderr]     |                ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `IndentRule` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:148:39
[INFO] [stderr]     |
[INFO] [stderr] 148 | fn convert_to_unix_line_endings(text: &str) -> (Cow<str>, LineEndings) {
[INFO] [stderr]     |                                       ^^^^      ^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                                       |
[INFO] [stderr]     |                                       the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 148 | fn convert_to_unix_line_endings(text: &str) -> (Cow<'_, str>, LineEndings) {
[INFO] [stderr]     |                                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: `nixpkgs-fmt` (lib) generated 4 warnings (run `cargo fix --lib -p nixpkgs-fmt` to apply 3 suggestions)
[INFO] [stderr] warning: `nixpkgs-fmt` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/nixpkgs_fmt-45db47d3106bec50)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test engine::fixes::tests::test_node_indent_ranges ... ok
[INFO] [stdout] test tests::converts_tabs_to_spaces ... ok
[INFO] [stdout] test tests::explain_smoke_test ... ok
[INFO] [stdout] test tests::preserves_dos_line_endings ... ok
[INFO] [stdout] test rules::tests::smoke ... ok
[INFO] [stdout] test rules::tests::test_syntax_errors_tests ... ok
[INFO] [stdout] test rules::tests::test_inline_indentation_tests ... ok
[INFO] [stdout] test rules::tests::test_fuzz_failures ... FAILED
[INFO] [stdout] test rules::tests::test_inline_spacing_tests ... ok
[INFO] [stdout] test rules::tests::test_nixpkgs_repository_bad_good_tests ... ok
[INFO] [stdout] test rules::tests::test_bad_good_tests ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- rules::tests::test_fuzz_failures stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'rules::tests::test_fuzz_failures' (27) panicked at src/rules.rs:888:49:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x62b35ec68d52 - std::backtrace_rs::backtrace::libunwind::trace::h16acf28769fcd909
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x62b35ec68d52 - std::backtrace_rs::backtrace::trace_unsynchronized::hb5541aa5d4f92513
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x62b35ec68d52 - std::sys::backtrace::_print_fmt::h8ac8268cb667a306
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x62b35ec68d52 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h47627beda0767f4c
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x62b35ec7905f - core::fmt::rt::Argument::fmt::h686a01ad57c1c92a
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x62b35ec7905f - core::fmt::write::h8a63064c67176fd8
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x62b35ec35db3 - std::io::default_write_fmt::hd4797e693c0ec256
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x62b35ec35db3 - std::io::Write::write_fmt::h791e240ad2720c99
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x62b35ec420c2 - std::sys::backtrace::BacktraceLock::print::h4634d27c0afbaebb
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x62b35ec46d3f - std::panicking::default_hook::{{closure}}::h23e0299d4738b766
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x62b35ec46bd1 - std::panicking::default_hook::hfeec6294e8751b62
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x62b35ebcba7e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h3f5a16438cee2b4e
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:2019:9
[INFO] [stdout]   12:     0x62b35ebcba7e - test::test_main_with_exit_callback::{{closure}}::h9214498cef9aafc5
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x62b35ec4734f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hdb18da3e68df7464
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:2019:9
[INFO] [stdout]   14:     0x62b35ec4734f - std::panicking::panic_with_hook::hd57cd463d793ed79
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x62b35ec471aa - std::panicking::panic_handler::{{closure}}::hddd6216c3fddee3b
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x62b35ec421f9 - std::sys::backtrace::__rust_end_short_backtrace::h5e7a56f283378525
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x62b35ec29cad - __rustc[256c90bb7e548b45]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x62b35ec80c90 - core::panicking::panic_fmt::hf19c198748ef6a95
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x62b35ec80116 - core::result::unwrap_failed::he81173b5792ad6b0
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/result.rs:1862:5
[INFO] [stdout]   20:     0x62b35eb6d7fe - core::result::Result<T,E>::unwrap::hc15e172cbd0701e0
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/result.rs:1233:23
[INFO] [stdout]   21:     0x62b35eb6d7fe - nixpkgs_fmt::rules::tests::test_fuzz_failures::h8f46fd0ae8947b1a
[INFO] [stdout]                                at /opt/rustwide/workdir/src/rules.rs:888:49
[INFO] [stdout]   22:     0x62b35eb6dd47 - nixpkgs_fmt::rules::tests::test_fuzz_failures::{{closure}}::hb378080c14f62923
[INFO] [stdout]                                at /opt/rustwide/workdir/src/rules.rs:883:28
[INFO] [stdout]   23:     0x62b35eb87b76 - core::ops::function::FnOnce::call_once::hb0f06e99d175dbeb
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x62b35ebcb8cb - core::ops::function::FnOnce::call_once::h43f43c5185cf39c2
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x62b35ebcb8cb - test::__rust_begin_short_backtrace::hc4fa634eb2764bdc
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x62b35ebdfee8 - test::run_test_in_process::{{closure}}::h9f4b799a5211b72a
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x62b35ebdfee8 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::ha572bf7dc5230a8f
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x62b35ebdfee8 - std::panicking::catch_unwind::do_call::hfd6ff51f25dd177b
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x62b35ebdfee8 - std::panicking::catch_unwind::h8609b446221def5f
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x62b35ebdfee8 - std::panic::catch_unwind::h362f73cc48531e26
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x62b35ebdfee8 - test::run_test_in_process::hf52fd21d696aae67
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x62b35ebdfee8 - test::run_test::{{closure}}::h7e780b8354e6d007
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x62b35ebb8cb4 - test::run_test::{{closure}}::hdc2695f2276aad3e
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x62b35ebb8cb4 - std::sys::backtrace::__rust_begin_short_backtrace::h2555b2113ed90fc9
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x62b35ebbc5ea - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h99800d480987dfb6
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/thread/mod.rs:562:17
[INFO] [stdout]   36:     0x62b35ebbc5ea - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hbbb69b5294b2221b
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x62b35ebbc5ea - std::panicking::catch_unwind::do_call::h495689350c27df20
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x62b35ebbc5ea - std::panicking::catch_unwind::hf22437c51d1b3740
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x62b35ebbc5ea - std::panic::catch_unwind::habda1a57de8231f8
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x62b35ebbc5ea - std::thread::Builder::spawn_unchecked_::{{closure}}::h5833d8dda8c7e80b
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/thread/mod.rs:560:30
[INFO] [stdout]   41:     0x62b35ebbc5ea - core::ops::function::FnOnce::call_once{{vtable.shim}}::ha2910283a5058402
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x62b35ec3d4ef - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::he4d85cb537521972
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:2005:9
[INFO] [stdout]   43:     0x62b35ec3d4ef - std::sys::thread::unix::Thread::new::thread_start::hbaf586a9e50a98cd
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/thread/unix.rs:126:17
[INFO] [stdout]   44:     0x74fc910b6aa4 - <unknown>
[INFO] [stdout]   45:     0x74fc91143a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     rules::tests::test_fuzz_failures
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 10 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.48s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "af4a258c30b335b4b810f848981124fc6a02e380367c291d54a10510b9f3923b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af4a258c30b335b4b810f848981124fc6a02e380367c291d54a10510b9f3923b", kill_on_drop: false }`
[INFO] [stdout] af4a258c30b335b4b810f848981124fc6a02e380367c291d54a10510b9f3923b
