[INFO] fetching crate oscar-tools 0.4.0...
[INFO] checking oscar-tools-0.4.0 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate oscar-tools 0.4.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate oscar-tools 0.4.0
[INFO] finished tweaking crates.io crate oscar-tools 0.4.0
[INFO] tweaked toml for crates.io crate oscar-tools 0.4.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate oscar-tools 0.4.0 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate oscar-tools 0.4.0 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e4afd7f4d503f1daa3701c0de30db92bb1c1e9ace33dc7f4d1ed5132ea36c1e
[INFO] running `Command { std: "docker" "start" "-a" "7e4afd7f4d503f1daa3701c0de30db92bb1c1e9ace33dc7f4d1ed5132ea36c1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e4afd7f4d503f1daa3701c0de30db92bb1c1e9ace33dc7f4d1ed5132ea36c1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e4afd7f4d503f1daa3701c0de30db92bb1c1e9ace33dc7f4d1ed5132ea36c1e", kill_on_drop: false }`
[INFO] [stdout] 7e4afd7f4d503f1daa3701c0de30db92bb1c1e9ace33dc7f4d1ed5132ea36c1e
[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=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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3dd14d72e4b1aaba17ed589f6170032739dc27f503501e8445f929fa2e568da
[INFO] running `Command { std: "docker" "start" "-a" "f3dd14d72e4b1aaba17ed589f6170032739dc27f503501e8445f929fa2e568da", kill_on_drop: false }`
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[INFO] [stderr]     Checking oscar-io v0.1.3
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[INFO] [stdout] warning: unexpected `cfg` condition name: `tarpaulin_include`
[INFO] [stdout]  --> src/error.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[cfg(not(tarpaulin_include))]
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin_include)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tarpaulin_include)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tarpaulin_include`
[INFO] [stdout]   --> src/error.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[cfg(not(tarpaulin_include))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin_include)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tarpaulin_include)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `info`
[INFO] [stdout]  --> src/ops/checksum.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 | use log::{debug, error, info, warn};
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `compress::Compress`
[INFO] [stdout]   --> src/ops/mod.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub(crate) use compress::Compress;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `dedup::Dedup`
[INFO] [stdout]   --> src/ops/mod.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) use dedup::Dedup;
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `extract_text::ExtractText`
[INFO] [stdout]   --> src/ops/mod.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) use extract_text::ExtractText;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `filter_tags::FilterTags`
[INFO] [stdout]   --> src/ops/mod.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub(crate) use filter_tags::FilterTags;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sampling::SampleText`
[INFO] [stdout]   --> src/ops/mod.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub(crate) use sampling::SampleText;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sampling::SamplingKind`
[INFO] [stdout]   --> src/ops/mod.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub use sampling::SamplingKind;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `split::Split`
[INFO] [stdout]   --> src/ops/mod.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) use split::Split;
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tarpaulin_include`
[INFO] [stdout]  --> src/error.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[cfg(not(tarpaulin_include))]
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin_include)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tarpaulin_include)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tarpaulin_include`
[INFO] [stdout]   --> src/error.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[cfg(not(tarpaulin_include))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin_include)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tarpaulin_include)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `info`
[INFO] [stdout]  --> src/ops/checksum.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 | use log::{debug, error, info, warn};
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Cursor`
[INFO] [stdout]    --> src/ops/compress.rs:203:14
[INFO] [stdout]     |
[INFO] [stdout] 203 |         io::{Cursor, Read},
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `dedup::Dedup`
[INFO] [stdout]   --> src/ops/mod.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) use dedup::Dedup;
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `extract_text::ExtractText`
[INFO] [stdout]   --> src/ops/mod.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) use extract_text::ExtractText;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `filter_tags::FilterTags`
[INFO] [stdout]   --> src/ops/mod.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub(crate) use filter_tags::FilterTags;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sampling::SampleText`
[INFO] [stdout]   --> src/ops/mod.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub(crate) use sampling::SampleText;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sampling::SamplingKind`
[INFO] [stdout]   --> src/ops/mod.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub use sampling::SamplingKind;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `split::Split`
[INFO] [stdout]   --> src/ops/mod.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) use split::Split;
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `COMPRESSED_FILE_EXTS` is never used
[INFO] [stdout]   --> src/ops/compress.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const COMPRESSED_FILE_EXTS: [&'static str; 2] = ["gz", "zst"];
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Compress` is never used
[INFO] [stdout]   --> src/ops/compress.rs:17:11
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub trait Compress {
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compress` is never used
[INFO] [stdout]    --> src/ops/compress.rs:157:4
[INFO] [stdout]     |
[INFO] [stdout] 157 | fn compress<T: Read>(dest_file: &mut impl Write, r: T, compression: &str) -> Result<(), Error> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compress_gzip` is never used
[INFO] [stdout]    --> src/ops/compress.rs:168:4
[INFO] [stdout]     |
[INFO] [stdout] 168 | fn compress_gzip<T: Read>(dest_file: &mut impl Write, r: T) -> Result<(), Error> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Dedup` is never used
[INFO] [stdout]  --> src/ops/dedup.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub trait Dedup {
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ExtractText` is never used
[INFO] [stdout]   --> src/ops/extract_text.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub trait ExtractText {
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `FilterTags` is never used
[INFO] [stdout]  --> src/ops/filter_tags.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait FilterTags {
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SamplingKind` is never used
[INFO] [stdout]  --> src/ops/sampling.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum SamplingKind {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SampleText` is never used
[INFO] [stdout]  --> src/ops/sampling.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub trait SampleText {
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SplitWriter` is never constructed
[INFO] [stdout]   --> src/ops/split.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct SplitWriter {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `format_filename`, `next_filename`, and `rotate_file` are never used
[INFO] [stdout]   --> src/ops/split.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl SplitWriter {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 29 |     /// Create a new writer. `max_size` is in bytes.
[INFO] [stdout] 30 |     pub fn new(dst: &Path, max_size: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn format_filename(filename: &Path, part_number: u64) -> Option<PathBuf> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn next_filename(&mut self) -> Option<Cow<Path>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     pub fn rotate_file(&mut self) -> std::io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Split` is never used
[INFO] [stdout]    --> src/ops/split.rs:161:11
[INFO] [stdout]     |
[INFO] [stdout] 161 | pub trait Split {
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ops/split.rs:61:22
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn next_filename(&mut self) -> Option<Cow<Path>> {
[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] 61 |     fn next_filename(&mut self) -> Option<Cow<'_, Path>> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gen_dummy_corpus` is never used
[INFO] [stdout]    --> src/ops/checksum.rs:144:8
[INFO] [stdout]     |
[INFO] [stdout] 144 |     fn gen_dummy_corpus() -> Result<TempDir, Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `compress_folder` is never used
[INFO] [stdout]   --> src/ops/compress.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub trait Compress {
[INFO] [stdout]    |           -------- associated function in this trait
[INFO] [stdout] ...
[INFO] [stdout] 87 |     fn compress_folder(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Dedup` is never used
[INFO] [stdout]  --> src/ops/dedup.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub trait Dedup {
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `extract_from_path` is never used
[INFO] [stdout]   --> src/ops/extract_text.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub trait ExtractText {
[INFO] [stdout]    |           ----------- associated function in this trait
[INFO] [stdout] 12 |     fn extract_from_path(src: &Path, dst: &Path, del_src: bool) -> Result<(), Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `FilterTags` is never used
[INFO] [stdout]  --> src/ops/filter_tags.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait FilterTags {
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SamplingKind` is never used
[INFO] [stdout]  --> src/ops/sampling.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum SamplingKind {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SampleText` is never used
[INFO] [stdout]  --> src/ops/sampling.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub trait SampleText {
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Split` is never used
[INFO] [stdout]    --> src/ops/split.rs:161:11
[INFO] [stdout]     |
[INFO] [stdout] 161 | pub trait Split {
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ops/split.rs:61:22
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn next_filename(&mut self) -> Option<Cow<Path>> {
[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] 61 |     fn next_filename(&mut self) -> Option<Cow<'_, Path>> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tarpaulin_include`
[INFO] [stdout]   --> src/main.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[cfg(not(tarpaulin_include))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin_include)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tarpaulin_include)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tarpaulin_include`
[INFO] [stdout]   --> src/cli.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[cfg(not(tarpaulin_include))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin_include)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tarpaulin_include)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tarpaulin_include`
[INFO] [stdout]   --> src/cli.rs:35:11
[INFO] [stdout]    |
[INFO] [stdout] 35 | #[cfg(not(tarpaulin_include))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin_include)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tarpaulin_include)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tarpaulin_include`
[INFO] [stdout]  --> src/error.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[cfg(not(tarpaulin_include))]
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin_include)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tarpaulin_include)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tarpaulin_include`
[INFO] [stdout]   --> src/error.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[cfg(not(tarpaulin_include))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin_include)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tarpaulin_include)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `info`
[INFO] [stdout]  --> src/ops/checksum.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 | use log::{debug, error, info, warn};
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tarpaulin_include`
[INFO] [stdout]   --> src/main.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[cfg(not(tarpaulin_include))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin_include)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tarpaulin_include)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tarpaulin_include`
[INFO] [stdout]   --> src/cli.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[cfg(not(tarpaulin_include))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin_include)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tarpaulin_include)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tarpaulin_include`
[INFO] [stdout]   --> src/cli.rs:35:11
[INFO] [stdout]    |
[INFO] [stdout] 35 | #[cfg(not(tarpaulin_include))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin_include)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tarpaulin_include)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tarpaulin_include`
[INFO] [stdout]  --> src/error.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[cfg(not(tarpaulin_include))]
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin_include)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tarpaulin_include)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tarpaulin_include`
[INFO] [stdout]   --> src/error.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[cfg(not(tarpaulin_include))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin_include)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tarpaulin_include)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `info`
[INFO] [stdout]  --> src/ops/checksum.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 | use log::{debug, error, info, warn};
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Cursor`
[INFO] [stdout]    --> src/ops/compress.rs:203:14
[INFO] [stdout]     |
[INFO] [stdout] 203 |         io::{Cursor, Read},
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `hook_to_clap` is never used
[INFO] [stdout]  --> src/cli.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub trait Command {
[INFO] [stdout]   |           ------- associated function in this trait
[INFO] [stdout] 8 |     fn hook_to_clap(ctx: clap::App<'static>) -> clap::App<'static>
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Runnable` is never used
[INFO] [stdout]   --> src/cli.rs:58:11
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub trait Runnable {
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/error.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Io(std::io::Error),
[INFO] [stdout]   |     -- ^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 6 -     Io(std::io::Error),
[INFO] [stdout] 6 +     Io(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/error.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Json(serde_json::Error),
[INFO] [stdout]   |     ---- ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 7 -     Json(serde_json::Error),
[INFO] [stdout] 7 +     Json(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/error.rs:8:21
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ThreadPoolBuild(rayon::ThreadPoolBuildError),
[INFO] [stdout]   |     --------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 -     ThreadPoolBuild(rayon::ThreadPoolBuildError),
[INFO] [stdout] 8 +     ThreadPoolBuild(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/error.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     OscarIo(oscar_io::error::Error),
[INFO] [stdout]    |     ------- ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 -     OscarIo(oscar_io::error::Error),
[INFO] [stdout] 11 +     OscarIo(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/error.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Custom(String),
[INFO] [stdout]    |     ------ ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 -     Custom(String),
[INFO] [stdout] 13 +     Custom(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `MissingContent` and `MalformedContent` are never constructed
[INFO] [stdout]   --> src/error.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub enum Error {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout]  9 |     MissingContent(serde_json::Value),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 10 |     MalformedContent(serde_json::Value),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `convert_to_hashset` is never used
[INFO] [stdout]   --> src/impls/oscar_doc/filter_tags.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl FilterTagDoc {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 60 |     fn convert_to_hashset(arr: &[serde_json::Value]) -> HashSet<Cow<str>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `extract_from_doc` and `extract` are never used
[INFO] [stdout]    --> src/impls/oscar_doc/oscar_doc.rs:238:8
[INFO] [stdout]     |
[INFO] [stdout] 234 | impl OscarDoc {
[INFO] [stdout]     | ------------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 238 |     fn extract_from_doc(doc: &str) -> Result<String, Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 254 |     fn extract<T: Read, U: Write>(src: T, dst: &mut U) -> Result<(), Error> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/impls/oscar_txt/dedup.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl DedupTxt {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 19 |     /// TODO: provide a way to specify filter?
[INFO] [stdout] 20 |     fn new(filter: Box<dyn Filter>) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `prev_offset` is never read
[INFO] [stdout]  --> src/impls/oscar_txt/sampling/indexer.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Indexer<R: BufRead + Seek> {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 6 |     inner: R,
[INFO] [stdout] 7 |     prev_offset: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `WithReplacement` is never constructed
[INFO] [stdout]  --> src/ops/sampling.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum SamplingKind {
[INFO] [stdout]   |          ------------ variant in this enum
[INFO] [stdout] 6 |     WithReplacement,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/impls/oscar_doc/filter_tags.rs:60:32
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn convert_to_hashset(arr: &[serde_json::Value]) -> HashSet<Cow<str>> {
[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] 60 |     fn convert_to_hashset(arr: &[serde_json::Value]) -> HashSet<Cow<'_, str>> {
[INFO] [stdout]    |                                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ops/split.rs:61:22
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn next_filename(&mut self) -> Option<Cow<Path>> {
[INFO] [stdout]    |                      ^^^^^^^^^            ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn next_filename(&mut self) -> Option<Cow<'_, Path>> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `hook_to_clap` is never used
[INFO] [stdout]  --> src/cli.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub trait Command {
[INFO] [stdout]   |           ------- associated function in this trait
[INFO] [stdout] 8 |     fn hook_to_clap(ctx: clap::App<'static>) -> clap::App<'static>
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Runnable` is never used
[INFO] [stdout]   --> src/cli.rs:58:11
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub trait Runnable {
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/error.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Json(serde_json::Error),
[INFO] [stdout]   |     ---- ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 7 -     Json(serde_json::Error),
[INFO] [stdout] 7 +     Json(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/error.rs:8:21
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ThreadPoolBuild(rayon::ThreadPoolBuildError),
[INFO] [stdout]   |     --------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 -     ThreadPoolBuild(rayon::ThreadPoolBuildError),
[INFO] [stdout] 8 +     ThreadPoolBuild(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/error.rs:9:20
[INFO] [stdout]   |
[INFO] [stdout] 9 |     MissingContent(serde_json::Value),
[INFO] [stdout]   |     -------------- ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 -     MissingContent(serde_json::Value),
[INFO] [stdout] 9 +     MissingContent(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/error.rs:10:22
[INFO] [stdout]    |
[INFO] [stdout] 10 |     MalformedContent(serde_json::Value),
[INFO] [stdout]    |     ---------------- ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 -     MalformedContent(serde_json::Value),
[INFO] [stdout] 10 +     MalformedContent(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/error.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     OscarIo(oscar_io::error::Error),
[INFO] [stdout]    |     ------- ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 -     OscarIo(oscar_io::error::Error),
[INFO] [stdout] 11 +     OscarIo(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/error.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Custom(String),
[INFO] [stdout]    |     ------ ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 -     Custom(String),
[INFO] [stdout] 13 +     Custom(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `convert_to_hashset` is never used
[INFO] [stdout]   --> src/impls/oscar_doc/filter_tags.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl FilterTagDoc {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 60 |     fn convert_to_hashset(arr: &[serde_json::Value]) -> HashSet<Cow<str>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/impls/oscar_txt/dedup.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl DedupTxt {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 19 |     /// TODO: provide a way to specify filter?
[INFO] [stdout] 20 |     fn new(filter: Box<dyn Filter>) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `prev_offset` is never read
[INFO] [stdout]  --> src/impls/oscar_txt/sampling/indexer.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Indexer<R: BufRead + Seek> {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 6 |     inner: R,
[INFO] [stdout] 7 |     prev_offset: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gen_dummy_corpus` is never used
[INFO] [stdout]    --> src/ops/checksum.rs:144:8
[INFO] [stdout]     |
[INFO] [stdout] 144 |     fn gen_dummy_corpus() -> Result<TempDir, Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `WithReplacement` is never constructed
[INFO] [stdout]  --> src/ops/sampling.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum SamplingKind {
[INFO] [stdout]   |          ------------ variant in this enum
[INFO] [stdout] 6 |     WithReplacement,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/impls/oscar_doc/filter_tags.rs:60:32
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn convert_to_hashset(arr: &[serde_json::Value]) -> HashSet<Cow<str>> {
[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] 60 |     fn convert_to_hashset(arr: &[serde_json::Value]) -> HashSet<Cow<'_, str>> {
[INFO] [stdout]    |                                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ops/split.rs:61:22
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn next_filename(&mut self) -> Option<Cow<Path>> {
[INFO] [stdout]    |                      ^^^^^^^^^            ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn next_filename(&mut self) -> Option<Cow<'_, Path>> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.82s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: snap v0.2.5
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 13`
[INFO] running `Command { std: "docker" "inspect" "f3dd14d72e4b1aaba17ed589f6170032739dc27f503501e8445f929fa2e568da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3dd14d72e4b1aaba17ed589f6170032739dc27f503501e8445f929fa2e568da", kill_on_drop: false }`
[INFO] [stdout] f3dd14d72e4b1aaba17ed589f6170032739dc27f503501e8445f929fa2e568da
