[INFO] cloning repository https://github.com/mapkts/xtap
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mapkts/xtap" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmapkts%2Fxtap", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmapkts%2Fxtap'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7deb9c278f6f58fb01fa8277e26f42d2f9fe5c78
[INFO] building mapkts/xtap against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmapkts%2Fxtap" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mapkts/xtap
[INFO] finished tweaking git repo https://github.com/mapkts/xtap
[INFO] tweaked toml for git repo https://github.com/mapkts/xtap written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mapkts/xtap on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mapkts/xtap 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27a755e0ad2398f88ed60f76eca75690f5fa7f3dfa33ad1d3a4d1055da2c2aef
[INFO] running `Command { std: "docker" "start" "-a" "27a755e0ad2398f88ed60f76eca75690f5fa7f3dfa33ad1d3a4d1055da2c2aef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27a755e0ad2398f88ed60f76eca75690f5fa7f3dfa33ad1d3a4d1055da2c2aef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27a755e0ad2398f88ed60f76eca75690f5fa7f3dfa33ad1d3a4d1055da2c2aef", kill_on_drop: false }`
[INFO] [stdout] 27a755e0ad2398f88ed60f76eca75690f5fa7f3dfa33ad1d3a4d1055da2c2aef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7381db817eba0c1c69c8c095fb8fe6a42ef8c8e8d1610e1ca4269e188b46e445
[INFO] running `Command { std: "docker" "start" "-a" "7381db817eba0c1c69c8c095fb8fe6a42ef8c8e8d1610e1ca4269e188b46e445", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling encoding_rs v0.8.29
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling ryu v1.0.6
[INFO] [stderr]    Compiling anyhow v1.0.50
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling encoding-index-japanese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-korean v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling encoding-index-singlebyte v1.20141219.5
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[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling unicode-width v0.1.9
[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 aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling encoding v0.2.33
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling xtap-util v0.1.0 (/opt/rustwide/workdir/crates/xtap-util)
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling codepage v0.1.1
[INFO] [stderr]    Compiling quick-xml v0.19.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling zip v0.5.13
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling calamine v0.18.0
[INFO] [stderr]    Compiling xtap-core v0.1.0 (/opt/rustwide/workdir/crates/xtap-core)
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]   --> crates/xtap-core/src/merger.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn default() -> MergerState {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] ...
[INFO] [stdout] 44 |             ..Default::default()
[INFO] [stdout]    |               ------------------ recursive call site
[INFO] [stdout]    |
[INFO] [stdout]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]    = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wtr`
[INFO] [stdout]   --> crates/xtap-core/src/merger.rs:93:40
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn into_writer<W: Write>(self, wtr: W, format: Format) -> Result<()> {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_wtr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `format`
[INFO] [stdout]   --> crates/xtap-core/src/merger.rs:93:48
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn into_writer<W: Write>(self, wtr: W, format: Format) -> Result<()> {
[INFO] [stdout]    |                                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_format`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]    --> crates/xtap-core/src/merger.rs:101:17
[INFO] [stdout]     |
[INFO] [stdout] 101 |         let mut file =
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> crates/xtap-core/src/merger.rs:101:13
[INFO] [stdout]     |
[INFO] [stdout] 101 |         let mut file =
[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: methods `should_trim_fields` and `should_trim_headers` are never used
[INFO] [stdout]   --> crates/xtap-core/src/lib.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Trim {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 25 |     fn should_trim_fields(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn should_trim_headers(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sources` and `state` are never read
[INFO] [stdout]   --> crates/xtap-core/src/merger.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Merger<R> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 10 |     /// The files to merge.
[INFO] [stdout] 11 |     sources: Vec<R>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 12 |     /// The tracking state.
[INFO] [stdout] 13 |     state: MergerState,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Merger` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> crates/xtap-core/src/merger.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct MergerState {
[INFO] [stdout]    |        ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 22 |     headers: Option<Record>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 23 |     /// Indicates whether the `sources` contain headers.
[INFO] [stdout] 24 |     has_headers: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 25 |     /// The maximum number of fields found.
[INFO] [stdout] 26 |     max_field_count: Option<u32>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 27 |     /// The number of fields in the first record in each source.
[INFO] [stdout] 28 |     first_field_count: Option<u32>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 29 |     /// Various skip options.
[INFO] [stdout] 30 |     skip: Option<Skip>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 31 |     /// Newline style.
[INFO] [stdout] 32 |     newline: Newline,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 33 |     /// Indicates whether the presence of ending newline in each source should be forced.
[INFO] [stdout] 34 |     force_ending_newline: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 35 |     /// Capacity of the `rdr`.
[INFO] [stdout] 36 |     capacity: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MergerState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Reader` is never constructed
[INFO] [stdout]  --> crates/xtap-core/src/reader.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Reader<R> {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Format` is never used
[INFO] [stdout]   --> crates/xtap-core/src/reader.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Format {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> crates/xtap-core/src/record.rs:66:17
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn iter(&self) -> RecordIter {
[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] 66 |     pub fn iter(&self) -> RecordIter<'_> {
[INFO] [stdout]    |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling xtap v0.1.0 (/opt/rustwide/workdir/crates/xtap-cli)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.98s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.19.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "7381db817eba0c1c69c8c095fb8fe6a42ef8c8e8d1610e1ca4269e188b46e445", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7381db817eba0c1c69c8c095fb8fe6a42ef8c8e8d1610e1ca4269e188b46e445", kill_on_drop: false }`
[INFO] [stdout] 7381db817eba0c1c69c8c095fb8fe6a42ef8c8e8d1610e1ca4269e188b46e445
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4408111729e45ca96f9fd3d22166f3821dbe6e629b333b5fdbd202d14f1d47c3
[INFO] running `Command { std: "docker" "start" "-a" "4408111729e45ca96f9fd3d22166f3821dbe6e629b333b5fdbd202d14f1d47c3", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling xtap-util v0.1.0 (/opt/rustwide/workdir/crates/xtap-util)
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]   --> crates/xtap-core/src/merger.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn default() -> MergerState {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] ...
[INFO] [stdout] 44 |             ..Default::default()
[INFO] [stdout]    |               ------------------ recursive call site
[INFO] [stdout]    |
[INFO] [stdout]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]    = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wtr`
[INFO] [stdout]   --> crates/xtap-core/src/merger.rs:93:40
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn into_writer<W: Write>(self, wtr: W, format: Format) -> Result<()> {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_wtr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `format`
[INFO] [stdout]   --> crates/xtap-core/src/merger.rs:93:48
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn into_writer<W: Write>(self, wtr: W, format: Format) -> Result<()> {
[INFO] [stdout]    |                                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_format`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]    --> crates/xtap-core/src/merger.rs:101:17
[INFO] [stdout]     |
[INFO] [stdout] 101 |         let mut file =
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> crates/xtap-core/src/merger.rs:101:13
[INFO] [stdout]     |
[INFO] [stdout] 101 |         let mut file =
[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: methods `should_trim_fields` and `should_trim_headers` are never used
[INFO] [stdout]   --> crates/xtap-core/src/lib.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Trim {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 25 |     fn should_trim_fields(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn should_trim_headers(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sources` and `state` are never read
[INFO] [stdout]   --> crates/xtap-core/src/merger.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Merger<R> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 10 |     /// The files to merge.
[INFO] [stdout] 11 |     sources: Vec<R>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 12 |     /// The tracking state.
[INFO] [stdout] 13 |     state: MergerState,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Merger` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> crates/xtap-core/src/merger.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct MergerState {
[INFO] [stdout]    |        ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 22 |     headers: Option<Record>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 23 |     /// Indicates whether the `sources` contain headers.
[INFO] [stdout] 24 |     has_headers: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 25 |     /// The maximum number of fields found.
[INFO] [stdout] 26 |     max_field_count: Option<u32>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 27 |     /// The number of fields in the first record in each source.
[INFO] [stdout] 28 |     first_field_count: Option<u32>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 29 |     /// Various skip options.
[INFO] [stdout] 30 |     skip: Option<Skip>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 31 |     /// Newline style.
[INFO] [stdout] 32 |     newline: Newline,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 33 |     /// Indicates whether the presence of ending newline in each source should be forced.
[INFO] [stdout] 34 |     force_ending_newline: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 35 |     /// Capacity of the `rdr`.
[INFO] [stdout] 36 |     capacity: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MergerState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Reader` is never constructed
[INFO] [stdout]  --> crates/xtap-core/src/reader.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Reader<R> {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Format` is never used
[INFO] [stdout]   --> crates/xtap-core/src/reader.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Format {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> crates/xtap-core/src/record.rs:66:17
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn iter(&self) -> RecordIter {
[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] 66 |     pub fn iter(&self) -> RecordIter<'_> {
[INFO] [stdout]    |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling xtap-core v0.1.0 (/opt/rustwide/workdir/crates/xtap-core)
[INFO] [stderr]    Compiling xtap v0.1.0 (/opt/rustwide/workdir/crates/xtap-cli)
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]   --> crates/xtap-core/src/merger.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn default() -> MergerState {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] ...
[INFO] [stdout] 44 |             ..Default::default()
[INFO] [stdout]    |               ------------------ recursive call site
[INFO] [stdout]    |
[INFO] [stdout]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]    = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wtr`
[INFO] [stdout]   --> crates/xtap-core/src/merger.rs:93:40
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn into_writer<W: Write>(self, wtr: W, format: Format) -> Result<()> {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_wtr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `format`
[INFO] [stdout]   --> crates/xtap-core/src/merger.rs:93:48
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn into_writer<W: Write>(self, wtr: W, format: Format) -> Result<()> {
[INFO] [stdout]    |                                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_format`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]    --> crates/xtap-core/src/merger.rs:101:17
[INFO] [stdout]     |
[INFO] [stdout] 101 |         let mut file =
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> crates/xtap-core/src/merger.rs:101:13
[INFO] [stdout]     |
[INFO] [stdout] 101 |         let mut file =
[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: methods `should_trim_fields` and `should_trim_headers` are never used
[INFO] [stdout]   --> crates/xtap-core/src/lib.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Trim {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 25 |     fn should_trim_fields(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn should_trim_headers(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sources` and `state` are never read
[INFO] [stdout]   --> crates/xtap-core/src/merger.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Merger<R> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 10 |     /// The files to merge.
[INFO] [stdout] 11 |     sources: Vec<R>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 12 |     /// The tracking state.
[INFO] [stdout] 13 |     state: MergerState,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Merger` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> crates/xtap-core/src/merger.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct MergerState {
[INFO] [stdout]    |        ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 22 |     headers: Option<Record>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 23 |     /// Indicates whether the `sources` contain headers.
[INFO] [stdout] 24 |     has_headers: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 25 |     /// The maximum number of fields found.
[INFO] [stdout] 26 |     max_field_count: Option<u32>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 27 |     /// The number of fields in the first record in each source.
[INFO] [stdout] 28 |     first_field_count: Option<u32>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 29 |     /// Various skip options.
[INFO] [stdout] 30 |     skip: Option<Skip>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 31 |     /// Newline style.
[INFO] [stdout] 32 |     newline: Newline,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 33 |     /// Indicates whether the presence of ending newline in each source should be forced.
[INFO] [stdout] 34 |     force_ending_newline: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 35 |     /// Capacity of the `rdr`.
[INFO] [stdout] 36 |     capacity: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MergerState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Reader` is never constructed
[INFO] [stdout]  --> crates/xtap-core/src/reader.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Reader<R> {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Format` is never used
[INFO] [stdout]   --> crates/xtap-core/src/reader.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Format {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> crates/xtap-core/src/record.rs:66:17
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn iter(&self) -> RecordIter {
[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] 66 |     pub fn iter(&self) -> RecordIter<'_> {
[INFO] [stdout]    |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.19.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "4408111729e45ca96f9fd3d22166f3821dbe6e629b333b5fdbd202d14f1d47c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4408111729e45ca96f9fd3d22166f3821dbe6e629b333b5fdbd202d14f1d47c3", kill_on_drop: false }`
[INFO] [stdout] 4408111729e45ca96f9fd3d22166f3821dbe6e629b333b5fdbd202d14f1d47c3
