[INFO] fetching crate nixpkgs-fmt 1.3.0...
[INFO] testing nixpkgs-fmt-1.3.0 against try#9f93af291970322f4f1c6315ccde4d7078201159 for pr-146098-6
[INFO] extracting crate nixpkgs-fmt 1.3.0 into /workspace/builds/worker-1-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-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nixpkgs-fmt 1.3.0 on toolchain 9f93af291970322f4f1c6315ccde4d7078201159
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "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" "+9f93af291970322f4f1c6315ccde4d7078201159" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c48c13676acd614fae312fea85472929ed24b1c1cb037ab70eef638552661760
[INFO] running `Command { std: "docker" "start" "-a" "c48c13676acd614fae312fea85472929ed24b1c1cb037ab70eef638552661760", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c48c13676acd614fae312fea85472929ed24b1c1cb037ab70eef638552661760", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c48c13676acd614fae312fea85472929ed24b1c1cb037ab70eef638552661760", kill_on_drop: false }`
[INFO] [stdout] c48c13676acd614fae312fea85472929ed24b1c1cb037ab70eef638552661760
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+9f93af291970322f4f1c6315ccde4d7078201159" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2cbacb8b8231d1414c967c8fae60ae0de478da403c9fa63ab80b69c61222fcb1
[INFO] running `Command { std: "docker" "start" "-a" "2cbacb8b8231d1414c967c8fae60ae0de478da403c9fa63ab80b69c61222fcb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling regex-syntax v0.6.26
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling countme v2.0.4
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.71
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[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 globset v0.4.8
[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 ignore v0.4.18
[INFO] [stderr]    Compiling rnix v0.10.2
[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 12.55s
[INFO] running `Command { std: "docker" "inspect" "2cbacb8b8231d1414c967c8fae60ae0de478da403c9fa63ab80b69c61222fcb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cbacb8b8231d1414c967c8fae60ae0de478da403c9fa63ab80b69c61222fcb1", kill_on_drop: false }`
[INFO] [stdout] 2cbacb8b8231d1414c967c8fae60ae0de478da403c9fa63ab80b69c61222fcb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ca628dc11c20889ee3d6f70103efe2f317951eac7f26c2b74b030368dca29b2
[INFO] running `Command { std: "docker" "start" "-a" "6ca628dc11c20889ee3d6f70103efe2f317951eac7f26c2b74b030368dca29b2", kill_on_drop: false }`
[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] [stderr]    Compiling unindent v0.1.7
[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 1.85s
[INFO] running `Command { std: "docker" "inspect" "6ca628dc11c20889ee3d6f70103efe2f317951eac7f26c2b74b030368dca29b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ca628dc11c20889ee3d6f70103efe2f317951eac7f26c2b74b030368dca29b2", kill_on_drop: false }`
[INFO] [stdout] 6ca628dc11c20889ee3d6f70103efe2f317951eac7f26c2b74b030368dca29b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3c994b6a5eb472f129663b471db41597594d28df6a4176ecfecfbc6e63092cfa
[INFO] running `Command { std: "docker" "start" "-a" "3c994b6a5eb472f129663b471db41597594d28df6a4176ecfecfbc6e63092cfa", 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 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/nixpkgs_fmt-1cf4e82d434a6800)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::explain_smoke_test ... ok
[INFO] [stdout] test tests::preserves_dos_line_endings ... ok
[INFO] [stdout] test tests::converts_tabs_to_spaces ... ok
[INFO] [stdout] test engine::fixes::tests::test_node_indent_ranges ... ok
[INFO] [stdout] test rules::tests::test_syntax_errors_tests ... ok
[INFO] [stdout] test rules::tests::smoke ... ok
[INFO] [stdout] test rules::tests::test_fuzz_failures ... FAILED
[INFO] [stdout] test rules::tests::test_inline_indentation_tests ... ok
[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' (28) 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:     0x5903868c2982 - std::backtrace_rs::backtrace::libunwind::trace::h16affffe904e891e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5903868c2982 - std::backtrace_rs::backtrace::trace_unsynchronized::h5c14b13373ed4150
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5903868c2982 - std::sys::backtrace::_print_fmt::hcbb507f162c816cc
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5903868c2982 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h8be9aa933f14675f
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5903868d2b2f - core::fmt::rt::Argument::fmt::h30ed739d33467c3a
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x5903868d2b2f - core::fmt::write::hfd0efbb002ac7eea
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x59038688fae3 - std::io::default_write_fmt::hd6d24501f2d7f8d3
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x59038688fae3 - std::io::Write::write_fmt::h79eca2f72fc24111
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x59038689bbf2 - std::sys::backtrace::BacktraceLock::print::hf2554f6030d393f7
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x5903868a08af - std::panicking::default_hook::{{closure}}::h8873121c56335b01
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x5903868a0741 - std::panicking::default_hook::hbafefc2d196267a2
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x590386825d4e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::ha834d5846f91b30b
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   12:     0x590386825d4e - test::test_main_with_exit_callback::{{closure}}::h63c167737eecb025
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5903868a0ebf - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hbf9b0f7a281291fd
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   14:     0x5903868a0ebf - std::panicking::panic_with_hook::h9f5b09d5adc1a745
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x5903868a0d1a - std::panicking::panic_handler::{{closure}}::h08111e483bdf6a89
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x59038689bd29 - std::sys::backtrace::__rust_end_short_backtrace::h1b86e3414ecbbe8d
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x590386883a0d - __rustc[b292c645e8102103]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x5903868da720 - core::panicking::panic_fmt::h31cc490ecc8cc1fa
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5903868d9ba6 - core::result::unwrap_failed::he05762ef9e6bdf9c
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/result.rs:1862:5
[INFO] [stdout]   20:     0x5903867e710e - core::result::Result<T,E>::unwrap::h618574090b2617a6
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/result.rs:1233:23
[INFO] [stdout]   21:     0x5903867e710e - nixpkgs_fmt::rules::tests::test_fuzz_failures::hf4172f38fcec96e5
[INFO] [stdout]                                at /opt/rustwide/workdir/src/rules.rs:888:49
[INFO] [stdout]   22:     0x5903867e7657 - nixpkgs_fmt::rules::tests::test_fuzz_failures::{{closure}}::h1c2bc1ff9b4773ea
[INFO] [stdout]                                at /opt/rustwide/workdir/src/rules.rs:883:28
[INFO] [stdout]   23:     0x5903867d2966 - core::ops::function::FnOnce::call_once::hceec143a6871a9d6
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x590386825b4b - core::ops::function::FnOnce::call_once::h2b2de5fdd23aab3e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x590386825b4b - test::__rust_begin_short_backtrace::he551dd004770be01
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x590386839bad - test::run_test_in_process::{{closure}}::h5f0b44080a35ed87
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x590386839bad - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4dbf65d14893ecf5
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x590386839bad - std::panicking::catch_unwind::do_call::hc37c563b8a006285
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x590386839bad - std::panicking::catch_unwind::h616b6e2e7a27f612
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x590386839bad - std::panic::catch_unwind::h1e788dd57758e6d8
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x590386839bad - test::run_test_in_process::hf073c2764f29f8ad
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x590386839bad - test::run_test::{{closure}}::h3dc46b7a0c340fa6
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x5903868130f4 - test::run_test::{{closure}}::h6a4da3c57ef4505f
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x5903868130f4 - std::sys::backtrace::__rust_begin_short_backtrace::hfd8e44bc311a5d57
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x59038681694a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h57c4ddec344fe24c
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/thread/mod.rs:562:17
[INFO] [stdout]   36:     0x59038681694a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd7cbe09591f06dfb
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x59038681694a - std::panicking::catch_unwind::do_call::hdcd076e8e993dfbc
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x59038681694a - std::panicking::catch_unwind::h8f9f675f3756eab1
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x59038681694a - std::panic::catch_unwind::he8f74a93abeceb9b
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x59038681694a - std::thread::Builder::spawn_unchecked_::{{closure}}::he43db13a2caa41d5
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/thread/mod.rs:560:30
[INFO] [stdout]   41:     0x59038681694a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h8f3531a7e0d83514
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x59038689712f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6ff05134d80ef20e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2085:9
[INFO] [stdout]   43:     0x59038689712f - std::sys::thread::unix::Thread::new::thread_start::h9a4a41a076a486e0
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/thread/unix.rs:124:17
[INFO] [stdout]   44:     0x7174b0b74aa4 - <unknown>
[INFO] [stdout]   45:     0x7174b0c01a64 - 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 0.51s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "3c994b6a5eb472f129663b471db41597594d28df6a4176ecfecfbc6e63092cfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c994b6a5eb472f129663b471db41597594d28df6a4176ecfecfbc6e63092cfa", kill_on_drop: false }`
[INFO] [stdout] 3c994b6a5eb472f129663b471db41597594d28df6a4176ecfecfbc6e63092cfa
