[INFO] fetching crate libprefetch 0.1.1...
[INFO] checking libprefetch-0.1.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate libprefetch 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate libprefetch 0.1.1
[INFO] finished tweaking crates.io crate libprefetch 0.1.1
[INFO] tweaked toml for crates.io crate libprefetch 0.1.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate libprefetch 0.1.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37000777418cdce726781b1e17d3584605f12fba5eee5a40a96adf69ebfc691f
[INFO] running `Command { std: "docker" "start" "-a" "37000777418cdce726781b1e17d3584605f12fba5eee5a40a96adf69ebfc691f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37000777418cdce726781b1e17d3584605f12fba5eee5a40a96adf69ebfc691f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37000777418cdce726781b1e17d3584605f12fba5eee5a40a96adf69ebfc691f", kill_on_drop: false }`
[INFO] [stdout] 37000777418cdce726781b1e17d3584605f12fba5eee5a40a96adf69ebfc691f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76a005fa968d9ac1f4e09c2a4b85ccddef6e5fbf8317ae720a27c48187733cb6
[INFO] running `Command { std: "docker" "start" "-a" "76a005fa968d9ac1f4e09c2a4b85ccddef6e5fbf8317ae720a27c48187733cb6", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking libprefetch v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/prefetch.rs:96:15
[INFO] [stdout]    |
[INFO] [stdout] 96 |   parser: Box<super::parser::Parser>,
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 96 |   parser: Box<dyn super::parser::Parser>,
[INFO] [stdout]    |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:49:30
[INFO] [stdout]    |
[INFO] [stdout] 49 |   fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 |   fn cause(&self) -> Option<&dyn std::error::Error> {
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/prefetch.rs:39:44
[INFO] [stdout]    |
[INFO] [stdout] 39 |       -> super::Result<(FormatVersion, Box<super::parser::Parser>)> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 39 |       -> super::Result<(FormatVersion, Box<dyn super::parser::Parser>)> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/header.rs:29:7
[INFO] [stdout]    |
[INFO] [stdout] 29 |   Box<super::parser::Parser>)> {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 29 |   Box<dyn super::parser::Parser>)> {
[INFO] [stdout]    |       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:44:34
[INFO] [stdout]    |
[INFO] [stdout] 44 |       Error::IOError(ref e) => e.description(),
[INFO] [stdout]    |                                  ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:60:26
[INFO] [stdout]    |
[INFO] [stdout] 60 |     write!(f, "{}", self.description())
[INFO] [stdout]    |                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/header.rs:31:44
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let result: super::Result<(Header, Box<super::parser::Parser>)>;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let result: super::Result<(Header, Box<dyn super::parser::Parser>)>;
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/prefetch.rs:96:15
[INFO] [stdout]    |
[INFO] [stdout] 96 |   parser: Box<super::parser::Parser>,
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 96 |   parser: Box<dyn super::parser::Parser>,
[INFO] [stdout]    |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:49:30
[INFO] [stdout]    |
[INFO] [stdout] 49 |   fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 |   fn cause(&self) -> Option<&dyn std::error::Error> {
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/prefetch.rs:39:44
[INFO] [stdout]    |
[INFO] [stdout] 39 |       -> super::Result<(FormatVersion, Box<super::parser::Parser>)> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 39 |       -> super::Result<(FormatVersion, Box<dyn super::parser::Parser>)> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/header.rs:29:7
[INFO] [stdout]    |
[INFO] [stdout] 29 |   Box<super::parser::Parser>)> {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 29 |   Box<dyn super::parser::Parser>)> {
[INFO] [stdout]    |       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parser` is never read
[INFO] [stdout]   --> src/prefetch.rs:96:3
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct Prefetch {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 95 |   header: super::header::Header,
[INFO] [stdout] 96 |   parser: Box<super::parser::Parser>,
[INFO] [stdout]    |   ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/prefetch.rs:147:18
[INFO] [stdout]     |
[INFO] [stdout] 147 |   pub fn metrics(&self)
[INFO] [stdout]     |                  ^^^^^ this lifetime flows to the output
[INFO] [stdout] 148 |       -> super::Result<super::iterator::MetricIterator> {
[INFO] [stdout]     |                        ------------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 148 |       -> super::Result<super::iterator::MetricIterator<'_>> {
[INFO] [stdout]     |                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/prefetch.rs:168:16
[INFO] [stdout]     |
[INFO] [stdout] 168 |   pub fn trace(&self)
[INFO] [stdout]     |                ^^^^^ this lifetime flows to the output
[INFO] [stdout] 169 |       -> super::Result<super::iterator::TraceIterator> {
[INFO] [stdout]     |                        ------------------------------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 169 |       -> super::Result<super::iterator::TraceIterator<'_>> {
[INFO] [stdout]     |                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/prefetch.rs:197:18
[INFO] [stdout]     |
[INFO] [stdout] 197 |   pub fn volumes(&self)
[INFO] [stdout]     |                  ^^^^^ this lifetime flows to the output
[INFO] [stdout] 198 |       -> super::Result<super::iterator::VolumeIterator> {
[INFO] [stdout]     |                        ------------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 198 |       -> super::Result<super::iterator::VolumeIterator<'_>> {
[INFO] [stdout]     |                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/iterator.rs:29:37
[INFO] [stdout]    |
[INFO] [stdout] 29 |   pub(crate) fn new(parser_result: &'p super::parser::ParserResult)
[INFO] [stdout]    |                                     ^^ this lifetime flows to the output
[INFO] [stdout] 30 |       -> super::Result<MetricIterator> {
[INFO] [stdout]    |                        -------------- the lifetime gets resolved as `'p`
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to consistently use `'p`
[INFO] [stdout]    |
[INFO] [stdout] 30 |       -> super::Result<MetricIterator<'p>> {
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/iterator.rs:71:37
[INFO] [stdout]    |
[INFO] [stdout] 71 |   pub(crate) fn new(parser_result: &'p super::parser::ParserResult)
[INFO] [stdout]    |                                     ^^ this lifetime flows to the output
[INFO] [stdout] 72 |       -> super::Result<TraceIterator> {
[INFO] [stdout]    |                        ------------- the lifetime gets resolved as `'p`
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to consistently use `'p`
[INFO] [stdout]    |
[INFO] [stdout] 72 |       -> super::Result<TraceIterator<'p>> {
[INFO] [stdout]    |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/iterator.rs:112:37
[INFO] [stdout]     |
[INFO] [stdout] 112 |   pub(crate) fn new(parser_result: &'p super::parser::ParserResult)
[INFO] [stdout]     |                                     ^^ this lifetime flows to the output
[INFO] [stdout] 113 |       -> super::Result<VolumeIterator> {
[INFO] [stdout]     |                        -------------- the lifetime gets resolved as `'p`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'p`
[INFO] [stdout]     |
[INFO] [stdout] 113 |       -> super::Result<VolumeIterator<'p>> {
[INFO] [stdout]     |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/iterator.rs:154:36
[INFO] [stdout]     |
[INFO] [stdout] 154 |   pub(crate) fn new(volume_entry: &'ve super::volume::VolumeEntry)
[INFO] [stdout]     |                                    ^^^ this lifetime flows to the output
[INFO] [stdout] 155 |       -> super::Result<DirectoryIterator> {
[INFO] [stdout]     |                        ----------------- the lifetime gets resolved as `'ve`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'ve`
[INFO] [stdout]     |
[INFO] [stdout] 155 |       -> super::Result<DirectoryIterator<'ve>> {
[INFO] [stdout]     |                                         +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/volume.rs:61:22
[INFO] [stdout]    |
[INFO] [stdout] 61 |   pub fn directories(&self)
[INFO] [stdout]    |                      ^^^^^ this lifetime flows to the output
[INFO] [stdout] 62 |       -> super::Result<super::iterator::DirectoryIterator> {
[INFO] [stdout]    |                        ---------------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 62 |       -> super::Result<super::iterator::DirectoryIterator<'_>> {
[INFO] [stdout]    |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:44:34
[INFO] [stdout]    |
[INFO] [stdout] 44 |       Error::IOError(ref e) => e.description(),
[INFO] [stdout]    |                                  ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:60:26
[INFO] [stdout]    |
[INFO] [stdout] 60 |     write!(f, "{}", self.description())
[INFO] [stdout]    |                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/header.rs:31:44
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let result: super::Result<(Header, Box<super::parser::Parser>)>;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let result: super::Result<(Header, Box<dyn super::parser::Parser>)>;
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parser` is never read
[INFO] [stdout]   --> src/prefetch.rs:96:3
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct Prefetch {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 95 |   header: super::header::Header,
[INFO] [stdout] 96 |   parser: Box<super::parser::Parser>,
[INFO] [stdout]    |   ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/prefetch.rs:147:18
[INFO] [stdout]     |
[INFO] [stdout] 147 |   pub fn metrics(&self)
[INFO] [stdout]     |                  ^^^^^ this lifetime flows to the output
[INFO] [stdout] 148 |       -> super::Result<super::iterator::MetricIterator> {
[INFO] [stdout]     |                        ------------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 148 |       -> super::Result<super::iterator::MetricIterator<'_>> {
[INFO] [stdout]     |                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/prefetch.rs:168:16
[INFO] [stdout]     |
[INFO] [stdout] 168 |   pub fn trace(&self)
[INFO] [stdout]     |                ^^^^^ this lifetime flows to the output
[INFO] [stdout] 169 |       -> super::Result<super::iterator::TraceIterator> {
[INFO] [stdout]     |                        ------------------------------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 169 |       -> super::Result<super::iterator::TraceIterator<'_>> {
[INFO] [stdout]     |                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/prefetch.rs:197:18
[INFO] [stdout]     |
[INFO] [stdout] 197 |   pub fn volumes(&self)
[INFO] [stdout]     |                  ^^^^^ this lifetime flows to the output
[INFO] [stdout] 198 |       -> super::Result<super::iterator::VolumeIterator> {
[INFO] [stdout]     |                        ------------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 198 |       -> super::Result<super::iterator::VolumeIterator<'_>> {
[INFO] [stdout]     |                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/iterator.rs:29:37
[INFO] [stdout]    |
[INFO] [stdout] 29 |   pub(crate) fn new(parser_result: &'p super::parser::ParserResult)
[INFO] [stdout]    |                                     ^^ this lifetime flows to the output
[INFO] [stdout] 30 |       -> super::Result<MetricIterator> {
[INFO] [stdout]    |                        -------------- the lifetime gets resolved as `'p`
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to consistently use `'p`
[INFO] [stdout]    |
[INFO] [stdout] 30 |       -> super::Result<MetricIterator<'p>> {
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/iterator.rs:71:37
[INFO] [stdout]    |
[INFO] [stdout] 71 |   pub(crate) fn new(parser_result: &'p super::parser::ParserResult)
[INFO] [stdout]    |                                     ^^ this lifetime flows to the output
[INFO] [stdout] 72 |       -> super::Result<TraceIterator> {
[INFO] [stdout]    |                        ------------- the lifetime gets resolved as `'p`
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to consistently use `'p`
[INFO] [stdout]    |
[INFO] [stdout] 72 |       -> super::Result<TraceIterator<'p>> {
[INFO] [stdout]    |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/iterator.rs:112:37
[INFO] [stdout]     |
[INFO] [stdout] 112 |   pub(crate) fn new(parser_result: &'p super::parser::ParserResult)
[INFO] [stdout]     |                                     ^^ this lifetime flows to the output
[INFO] [stdout] 113 |       -> super::Result<VolumeIterator> {
[INFO] [stdout]     |                        -------------- the lifetime gets resolved as `'p`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'p`
[INFO] [stdout]     |
[INFO] [stdout] 113 |       -> super::Result<VolumeIterator<'p>> {
[INFO] [stdout]     |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/iterator.rs:154:36
[INFO] [stdout]     |
[INFO] [stdout] 154 |   pub(crate) fn new(volume_entry: &'ve super::volume::VolumeEntry)
[INFO] [stdout]     |                                    ^^^ this lifetime flows to the output
[INFO] [stdout] 155 |       -> super::Result<DirectoryIterator> {
[INFO] [stdout]     |                        ----------------- the lifetime gets resolved as `'ve`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'ve`
[INFO] [stdout]     |
[INFO] [stdout] 155 |       -> super::Result<DirectoryIterator<'ve>> {
[INFO] [stdout]     |                                         +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/volume.rs:61:22
[INFO] [stdout]    |
[INFO] [stdout] 61 |   pub fn directories(&self)
[INFO] [stdout]    |                      ^^^^^ this lifetime flows to the output
[INFO] [stdout] 62 |       -> super::Result<super::iterator::DirectoryIterator> {
[INFO] [stdout]    |                        ---------------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 62 |       -> super::Result<super::iterator::DirectoryIterator<'_>> {
[INFO] [stdout]    |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "76a005fa968d9ac1f4e09c2a4b85ccddef6e5fbf8317ae720a27c48187733cb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76a005fa968d9ac1f4e09c2a4b85ccddef6e5fbf8317ae720a27c48187733cb6", kill_on_drop: false }`
[INFO] [stdout] 76a005fa968d9ac1f4e09c2a4b85ccddef6e5fbf8317ae720a27c48187733cb6