[INFO] fetching crate artifact 0.2.4...
[INFO] linting artifact-0.2.4 against nightly for clippy-nonminimal_bool-denied
[INFO] extracting crate artifact 0.2.4 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate artifact 0.2.4
[INFO] finished tweaking crates.io crate artifact 0.2.4
[INFO] tweaked toml for crates.io crate artifact 0.2.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate artifact 0.2.4 on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "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" "+nightly" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[INFO] [stderr]       Adding lazy_static v0.1.16 (available: v1.5.0)
[INFO] [stderr]       Adding log v0.3.9 (available: v0.4.29)
[INFO] [stderr]       Adding time v0.1.45 (available: v0.3.47)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b982d8bf7110a16c928d53fcf258ccb30c9bc24edbd42caa314cbb056a8754e
[INFO] running `Command { std: "docker" "start" "-a" "6b982d8bf7110a16c928d53fcf258ccb30c9bc24edbd42caa314cbb056a8754e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b982d8bf7110a16c928d53fcf258ccb30c9bc24edbd42caa314cbb056a8754e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b982d8bf7110a16c928d53fcf258ccb30c9bc24edbd42caa314cbb056a8754e", kill_on_drop: false }`
[INFO] [stdout] 6b982d8bf7110a16c928d53fcf258ccb30c9bc24edbd42caa314cbb056a8754e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e6a4fc95c0523c8aa893682f7c6d8a4f1661ff836eeb85932c3465c421e14a3
[INFO] running `Command { std: "docker" "start" "-a" "4e6a4fc95c0523c8aa893682f7c6d8a4f1661ff836eeb85932c3465c421e14a3", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking artifact v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constants have by default a `'static` lifetime
[INFO] [stdout]   --> src/internal/task.rs:46:33
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub const INTERNAL_LOGGER_NAME:&'static str = "Artifact Internal";
[INFO] [stdout]    |                                -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_static_lifetimes
[INFO] [stdout]    = note: `#[warn(clippy::redundant_static_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `nightly`
[INFO] [stdout]   --> src/internal/comm.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | / lazy_static!(
[INFO] [stdout] 34 | |   static ref GLOBAL_LOGGER_ACCESS: Mutex<Option<Artifact>> = Mutex::new(None);
[INFO] [stdout] 35 | | );
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `default`, `log`, `no-failure-logs`, and `time`
[INFO] [stdout]    = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `lazy_static` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the macro `lazy_static` may come from an old version of the `lazy_static` crate, try updating your dependency with `cargo update -p lazy_static`
[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]    = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `nightly`
[INFO] [stdout]   --> src/internal/comm.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | / lazy_static!(
[INFO] [stdout] 34 | |   static ref GLOBAL_LOGGER_ACCESS: Mutex<Option<Artifact>> = Mutex::new(None);
[INFO] [stdout] 35 | | );
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `default`, `log`, `no-failure-logs`, and `time`
[INFO] [stdout]    = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `lazy_static` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the macro `lazy_static` may come from an old version of the `lazy_static` crate, try updating your dependency with `cargo update -p lazy_static`
[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: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/lib.rs:56:23
[INFO] [stdout]    |
[INFO] [stdout] 56 |     ArtifactGlobalLib{handle: handle}
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^ help: replace it with: `handle`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout]    = note: `#[warn(clippy::redundant_field_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]   --> src/internal/comm.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | / lazy_static!(
[INFO] [stdout] 34 | |   static ref GLOBAL_LOGGER_ACCESS: Mutex<Option<Artifact>> = Mutex::new(None);
[INFO] [stdout] 35 | | );
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]   --> src/internal/comm.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | / lazy_static!(
[INFO] [stdout] 34 | |   static ref GLOBAL_LOGGER_ACCESS: Mutex<Option<Artifact>> = Mutex::new(None);
[INFO] [stdout] 35 | | );
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/internal/task.rs:62:28
[INFO] [stdout]    |
[INFO] [stdout] 62 |   SetFormatter(String, Box<MessageFormatter>),
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 62 |   SetFormatter(String, Box<dyn MessageFormatter>),
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/internal/task.rs:63:27
[INFO] [stdout]    |
[INFO] [stdout] 63 |   SetDefaultFormatter(Box<MessageFormatter>),
[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/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] 63 |   SetDefaultFormatter(Box<dyn MessageFormatter>),
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/internal/task.rs:80:35
[INFO] [stdout]    |
[INFO] [stdout] 80 |   formatters: HashMap<String, Box<MessageFormatter>>,
[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/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] 80 |   formatters: HashMap<String, Box<dyn MessageFormatter>>,
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/internal/task.rs:81:26
[INFO] [stdout]    |
[INFO] [stdout] 81 |   default_formatter: Box<MessageFormatter>,
[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/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] 81 |   default_formatter: Box<dyn MessageFormatter>,
[INFO] [stdout]    |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/format.rs:86:43
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub fn new_basic_format_instance() -> Box<MessageFormatter> {
[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/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] 86 | pub fn new_basic_format_instance() -> Box<dyn MessageFormatter> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/logger.rs:68:41
[INFO] [stdout]    |
[INFO] [stdout] 68 |   pub fn set_default_formatter(fmtr:Box<MessageFormatter>) {
[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/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] 68 |   pub fn set_default_formatter(fmtr:Box<dyn MessageFormatter>) {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/logger.rs:152:43
[INFO] [stdout]     |
[INFO] [stdout] 152 |   pub fn set_format(&self, formatter: Box<MessageFormatter>) {
[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/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] 152 |   pub fn set_format(&self, formatter: Box<dyn MessageFormatter>) {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/internal/task.rs:135:63
[INFO] [stdout]     |
[INFO] [stdout] 135 |   fn get_formatter<'a>(&'a self, logger_name:&str) -> &'a Box<MessageFormatter> {
[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/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] 135 |   fn get_formatter<'a>(&'a self, logger_name:&str) -> &'a Box<dyn MessageFormatter> {
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constants have by default a `'static` lifetime
[INFO] [stdout]   --> src/internal/task.rs:46:33
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub const INTERNAL_LOGGER_NAME:&'static str = "Artifact Internal";
[INFO] [stdout]    |                                -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_static_lifetimes
[INFO] [stdout]    = note: `#[warn(clippy::redundant_static_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `nightly`
[INFO] [stdout]   --> src/internal/comm.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | / lazy_static!(
[INFO] [stdout] 34 | |   static ref GLOBAL_LOGGER_ACCESS: Mutex<Option<Artifact>> = Mutex::new(None);
[INFO] [stdout] 35 | | );
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `default`, `log`, `no-failure-logs`, and `time`
[INFO] [stdout]    = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `lazy_static` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the macro `lazy_static` may come from an old version of the `lazy_static` crate, try updating your dependency with `cargo update -p lazy_static`
[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]    = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `nightly`
[INFO] [stdout]   --> src/internal/comm.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | / lazy_static!(
[INFO] [stdout] 34 | |   static ref GLOBAL_LOGGER_ACCESS: Mutex<Option<Artifact>> = Mutex::new(None);
[INFO] [stdout] 35 | | );
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `default`, `log`, `no-failure-logs`, and `time`
[INFO] [stdout]    = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `lazy_static` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the macro `lazy_static` may come from an old version of the `lazy_static` crate, try updating your dependency with `cargo update -p lazy_static`
[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: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/lib.rs:56:23
[INFO] [stdout]    |
[INFO] [stdout] 56 |     ArtifactGlobalLib{handle: handle}
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^ help: replace it with: `handle`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout]    = note: `#[warn(clippy::redundant_field_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]   --> src/internal/comm.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | / lazy_static!(
[INFO] [stdout] 34 | |   static ref GLOBAL_LOGGER_ACCESS: Mutex<Option<Artifact>> = Mutex::new(None);
[INFO] [stdout] 35 | | );
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]   --> src/internal/comm.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | / lazy_static!(
[INFO] [stdout] 34 | |   static ref GLOBAL_LOGGER_ACCESS: Mutex<Option<Artifact>> = Mutex::new(None);
[INFO] [stdout] 35 | | );
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/internal/task.rs:62:28
[INFO] [stdout]    |
[INFO] [stdout] 62 |   SetFormatter(String, Box<MessageFormatter>),
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 62 |   SetFormatter(String, Box<dyn MessageFormatter>),
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/internal/task.rs:63:27
[INFO] [stdout]    |
[INFO] [stdout] 63 |   SetDefaultFormatter(Box<MessageFormatter>),
[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/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] 63 |   SetDefaultFormatter(Box<dyn MessageFormatter>),
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/internal/task.rs:80:35
[INFO] [stdout]    |
[INFO] [stdout] 80 |   formatters: HashMap<String, Box<MessageFormatter>>,
[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/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] 80 |   formatters: HashMap<String, Box<dyn MessageFormatter>>,
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/internal/task.rs:81:26
[INFO] [stdout]    |
[INFO] [stdout] 81 |   default_formatter: Box<MessageFormatter>,
[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/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] 81 |   default_formatter: Box<dyn MessageFormatter>,
[INFO] [stdout]    |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: all variants have the same postfix: `LoggerInst`
[INFO] [stdout]   --> src/internal/task.rs:69:1
[INFO] [stdout]    |
[INFO] [stdout] 69 | / enum LoggerInstance{
[INFO] [stdout] 70 | |   FileLoggerInst(Rc<RefCell<File>>, PathBuf),
[INFO] [stdout] 71 | |   StdoutLoggerInst,
[INFO] [stdout] 72 | |   StderrLoggerInst,
[INFO] [stdout] 73 | |   MultiLoggerInst(Vec<String>),
[INFO] [stdout] 74 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: remove the postfixes and use full paths to the variants instead of glob imports
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
[INFO] [stdout]    = note: `#[warn(clippy::enum_variant_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stdout]    --> src/internal/task.rs:135:55
[INFO] [stdout]     |
[INFO] [stdout] 135 |   fn get_formatter<'a>(&'a self, logger_name:&str) -> &'a Box<MessageFormatter> {
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&'a MessageFormatter`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stdout]     = note: `#[warn(clippy::borrowed_box)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/internal/task.rs:155:53
[INFO] [stdout]     |
[INFO] [stdout] 155 |           logger.write(logger_name, msg, msg_level, &self);
[INFO] [stdout]     |                                                     ^^^^^ help: change this to: `self`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]     = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a tuple pattern where every element takes a reference
[INFO] [stdout]    --> src/internal/task.rs:198:9
[INFO] [stdout]     |
[INFO] [stdout] 198 |     for &(_, ref known_logger) in self.loggers.values() {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrowed_reference
[INFO] [stdout]     = note: `#[warn(clippy::needless_borrowed_reference)]` on by default
[INFO] [stdout] help: try removing the `&` and `ref` parts
[INFO] [stdout]     |
[INFO] [stdout] 198 -     for &(_, ref known_logger) in self.loggers.values() {
[INFO] [stdout] 198 +     for (_, known_logger) in self.loggers.values() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` can be collapsed into the outer `match`
[INFO] [stdout]    --> src/internal/task.rs:201:11
[INFO] [stdout]     |
[INFO] [stdout] 201 | /           if *prev_path == *path {
[INFO] [stdout] 202 | |             return Some(LoggerInstance::FileLoggerInst(cell.clone(), prev_path.clone()));
[INFO] [stdout] 203 | |           }
[INFO] [stdout]     | |___________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_match
[INFO] [stdout]     = note: `#[warn(clippy::collapsible_match)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 200 ~         &LoggerInstance::FileLoggerInst(ref cell, ref prev_path)
[INFO] [stdout] 201 ~           if *prev_path == *path => {
[INFO] [stdout] 202 |             return Some(LoggerInstance::FileLoggerInst(cell.clone(), prev_path.clone()));
[INFO] [stdout] 203 ~           }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/internal/task.rs:199:7
[INFO] [stdout]     |
[INFO] [stdout] 199 | /       match known_logger {
[INFO] [stdout] 200 | |         &LoggerInstance::FileLoggerInst(ref cell, ref prev_path) => {
[INFO] [stdout] 201 | |           if *prev_path == *path {
[INFO] [stdout] 202 | |             return Some(LoggerInstance::FileLoggerInst(cell.clone(), prev_path.clone()));
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         _ => {}
[INFO] [stdout] 206 | |       }
[INFO] [stdout]     | |_______^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout]     = note: `#[warn(clippy::single_match)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 199 ~       if let &LoggerInstance::FileLoggerInst(ref cell, ref prev_path) = known_logger {
[INFO] [stdout] 200 +         if *prev_path == *path {
[INFO] [stdout] 201 +           return Some(LoggerInstance::FileLoggerInst(cell.clone(), prev_path.clone()));
[INFO] [stdout] 202 +         }
[INFO] [stdout] 203 +       }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a tuple pattern where every element takes a reference
[INFO] [stdout]    --> src/internal/task.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |         &LoggerInstance::FileLoggerInst(ref cell, ref prev_path) => {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrowed_reference
[INFO] [stdout] help: try removing the `&` and `ref` parts
[INFO] [stdout]     |
[INFO] [stdout] 200 -         &LoggerInstance::FileLoggerInst(ref cell, ref prev_path) => {
[INFO] [stdout] 200 +         LoggerInstance::FileLoggerInst(cell, prev_path) => {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/internal/task.rs:251:8
[INFO] [stdout]     |
[INFO] [stdout] 251 |     if !self.loggers.get(&logger).is_none() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.loggers.get(&logger).is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you are using an explicit closure for copying elements
[INFO] [stdout]    --> src/internal/task.rs:250:27
[INFO] [stdout]     |
[INFO] [stdout] 250 |     let disabled_status = self.disabled.get(&logger).map(|b| *b);
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `copied` method: `self.disabled.get(&logger).copied()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stdout]     = note: `#[warn(clippy::map_clone)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary use of `get(&logger).is_none()`
[INFO] [stdout]    --> src/internal/task.rs:251:22
[INFO] [stdout]     |
[INFO] [stdout] 251 |     if !self.loggers.get(&logger).is_none() {
[INFO] [stdout]     |         -------------^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: replace it with: `!self.loggers.contains_key(&logger)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_get_then_check
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_get_then_check)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/format.rs:86:43
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub fn new_basic_format_instance() -> Box<MessageFormatter> {
[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/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] 86 | pub fn new_basic_format_instance() -> Box<dyn MessageFormatter> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/logger.rs:68:41
[INFO] [stdout]    |
[INFO] [stdout] 68 |   pub fn set_default_formatter(fmtr:Box<MessageFormatter>) {
[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/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] 68 |   pub fn set_default_formatter(fmtr:Box<dyn MessageFormatter>) {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: initializer for `thread_local` value can be made `const`
[INFO] [stdout]   --> src/internal/comm.rs:37:69
[INFO] [stdout]    |
[INFO] [stdout] 37 | thread_local!(static LOCAL_LOGGER_CELL: RefCell<Option<Artifact>> = RefCell::new(None));
[INFO] [stdout]    |                                                                     ^^^^^^^^^^^^^^^^^^ help: replace with: `const { RefCell::new(None) }`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#missing_const_for_thread_local
[INFO] [stdout]    = note: `#[warn(clippy::missing_const_for_thread_local)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/logger.rs:152:43
[INFO] [stdout]     |
[INFO] [stdout] 152 |   pub fn set_format(&self, formatter: Box<MessageFormatter>) {
[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/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] 152 |   pub fn set_format(&self, formatter: Box<dyn MessageFormatter>) {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/internal/task.rs:135:63
[INFO] [stdout]     |
[INFO] [stdout] 135 |   fn get_formatter<'a>(&'a self, logger_name:&str) -> &'a Box<MessageFormatter> {
[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/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] 135 |   fn get_formatter<'a>(&'a self, logger_name:&str) -> &'a Box<dyn MessageFormatter> {
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]   --> src/internal/comm.rs:81:3
[INFO] [stdout]    |
[INFO] [stdout] 81 | /   match *GLOBAL_LOGGER_ACCESS.lock().unwrap() {
[INFO] [stdout] 82 | |     Some(Artifact{ref msg_tx}) => { let _ = msg_tx.send(task::LoggerMessage::PoisonPill); }
[INFO] [stdout] 83 | |     None => {}
[INFO] [stdout] 84 | |   }
[INFO] [stdout]    | |___^ help: try: `if let Some(Artifact{ref msg_tx}) = *GLOBAL_LOGGER_ACCESS.lock().unwrap() { let _ = msg_tx.send(task::LoggerMessage::PoisonPill); }`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/internal/comm.rs:95:43
[INFO] [stdout]    |
[INFO] [stdout] 95 |       send_logger_message_with_uninit_tls(&mut *mut_cell_internal, message)
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&mut mut_cell_internal`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout]    = note: `#[warn(clippy::explicit_auto_deref)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: all variants have the same postfix: `LoggerInst`
[INFO] [stdout]   --> src/internal/task.rs:69:1
[INFO] [stdout]    |
[INFO] [stdout] 69 | / enum LoggerInstance{
[INFO] [stdout] 70 | |   FileLoggerInst(Rc<RefCell<File>>, PathBuf),
[INFO] [stdout] 71 | |   StdoutLoggerInst,
[INFO] [stdout] 72 | |   StderrLoggerInst,
[INFO] [stdout] 73 | |   MultiLoggerInst(Vec<String>),
[INFO] [stdout] 74 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: remove the postfixes and use full paths to the variants instead of glob imports
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
[INFO] [stdout]    = note: `#[warn(clippy::enum_variant_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stdout]    --> src/internal/task.rs:135:55
[INFO] [stdout]     |
[INFO] [stdout] 135 |   fn get_formatter<'a>(&'a self, logger_name:&str) -> &'a Box<MessageFormatter> {
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&'a MessageFormatter`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stdout]     = note: `#[warn(clippy::borrowed_box)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/internal/task.rs:155:53
[INFO] [stdout]     |
[INFO] [stdout] 155 |           logger.write(logger_name, msg, msg_level, &self);
[INFO] [stdout]     |                                                     ^^^^^ help: change this to: `self`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]     = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a tuple pattern where every element takes a reference
[INFO] [stdout]    --> src/internal/task.rs:198:9
[INFO] [stdout]     |
[INFO] [stdout] 198 |     for &(_, ref known_logger) in self.loggers.values() {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrowed_reference
[INFO] [stdout]     = note: `#[warn(clippy::needless_borrowed_reference)]` on by default
[INFO] [stdout] help: try removing the `&` and `ref` parts
[INFO] [stdout]     |
[INFO] [stdout] 198 -     for &(_, ref known_logger) in self.loggers.values() {
[INFO] [stdout] 198 +     for (_, known_logger) in self.loggers.values() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` can be collapsed into the outer `match`
[INFO] [stdout]    --> src/internal/task.rs:201:11
[INFO] [stdout]     |
[INFO] [stdout] 201 | /           if *prev_path == *path {
[INFO] [stdout] 202 | |             return Some(LoggerInstance::FileLoggerInst(cell.clone(), prev_path.clone()));
[INFO] [stdout] 203 | |           }
[INFO] [stdout]     | |___________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_match
[INFO] [stdout]     = note: `#[warn(clippy::collapsible_match)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 200 ~         &LoggerInstance::FileLoggerInst(ref cell, ref prev_path)
[INFO] [stdout] 201 ~           if *prev_path == *path => {
[INFO] [stdout] 202 |             return Some(LoggerInstance::FileLoggerInst(cell.clone(), prev_path.clone()));
[INFO] [stdout] 203 ~           }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/internal/task.rs:199:7
[INFO] [stdout]     |
[INFO] [stdout] 199 | /       match known_logger {
[INFO] [stdout] 200 | |         &LoggerInstance::FileLoggerInst(ref cell, ref prev_path) => {
[INFO] [stdout] 201 | |           if *prev_path == *path {
[INFO] [stdout] 202 | |             return Some(LoggerInstance::FileLoggerInst(cell.clone(), prev_path.clone()));
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         _ => {}
[INFO] [stdout] 206 | |       }
[INFO] [stdout]     | |_______^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout]     = note: `#[warn(clippy::single_match)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 199 ~       if let &LoggerInstance::FileLoggerInst(ref cell, ref prev_path) = known_logger {
[INFO] [stdout] 200 +         if *prev_path == *path {
[INFO] [stdout] 201 +           return Some(LoggerInstance::FileLoggerInst(cell.clone(), prev_path.clone()));
[INFO] [stdout] 202 +         }
[INFO] [stdout] 203 +       }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a tuple pattern where every element takes a reference
[INFO] [stdout]    --> src/internal/task.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |         &LoggerInstance::FileLoggerInst(ref cell, ref prev_path) => {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrowed_reference
[INFO] [stdout] help: try removing the `&` and `ref` parts
[INFO] [stdout]     |
[INFO] [stdout] 200 -         &LoggerInstance::FileLoggerInst(ref cell, ref prev_path) => {
[INFO] [stdout] 200 +         LoggerInstance::FileLoggerInst(cell, prev_path) => {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/internal/task.rs:251:8
[INFO] [stdout]     |
[INFO] [stdout] 251 |     if !self.loggers.get(&logger).is_none() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.loggers.get(&logger).is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you are using an explicit closure for copying elements
[INFO] [stdout]    --> src/internal/task.rs:250:27
[INFO] [stdout]     |
[INFO] [stdout] 250 |     let disabled_status = self.disabled.get(&logger).map(|b| *b);
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `copied` method: `self.disabled.get(&logger).copied()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stdout]     = note: `#[warn(clippy::map_clone)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary use of `get(&logger).is_none()`
[INFO] [stdout]    --> src/internal/task.rs:251:22
[INFO] [stdout]     |
[INFO] [stdout] 251 |     if !self.loggers.get(&logger).is_none() {
[INFO] [stdout]     |         -------------^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: replace it with: `!self.loggers.contains_key(&logger)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_get_then_check
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_get_then_check)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: initializer for `thread_local` value can be made `const`
[INFO] [stdout]   --> src/internal/comm.rs:37:69
[INFO] [stdout]    |
[INFO] [stdout] 37 | thread_local!(static LOCAL_LOGGER_CELL: RefCell<Option<Artifact>> = RefCell::new(None));
[INFO] [stdout]    |                                                                     ^^^^^^^^^^^^^^^^^^ help: replace with: `const { RefCell::new(None) }`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#missing_const_for_thread_local
[INFO] [stdout]    = note: `#[warn(clippy::missing_const_for_thread_local)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]   --> src/internal/comm.rs:81:3
[INFO] [stdout]    |
[INFO] [stdout] 81 | /   match *GLOBAL_LOGGER_ACCESS.lock().unwrap() {
[INFO] [stdout] 82 | |     Some(Artifact{ref msg_tx}) => { let _ = msg_tx.send(task::LoggerMessage::PoisonPill); }
[INFO] [stdout] 83 | |     None => {}
[INFO] [stdout] 84 | |   }
[INFO] [stdout]    | |___^ help: try: `if let Some(Artifact{ref msg_tx}) = *GLOBAL_LOGGER_ACCESS.lock().unwrap() { let _ = msg_tx.send(task::LoggerMessage::PoisonPill); }`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/internal/comm.rs:95:43
[INFO] [stdout]    |
[INFO] [stdout] 95 |       send_logger_message_with_uninit_tls(&mut *mut_cell_internal, message)
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&mut mut_cell_internal`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout]    = note: `#[warn(clippy::explicit_auto_deref)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/file_log.rs:27:48
[INFO] [stdout]    |
[INFO] [stdout] 27 |   logger.set_format(Box::new(FooFormat) as Box<MessageFormatter>);
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 27 |   logger.set_format(Box::new(FooFormat) as Box<dyn MessageFormatter>);
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/file_log.rs:30:60
[INFO] [stdout]    |
[INFO] [stdout] 30 |   Logger::set_default_formatter(Box::new(FooFormat) as Box<MessageFormatter>);
[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/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] 30 |   Logger::set_default_formatter(Box::new(FooFormat) as Box<dyn MessageFormatter>);
[INFO] [stdout]    |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/multi_logger.rs:39:54
[INFO] [stdout]    |
[INFO] [stdout] 39 |   multi_logger.set_format(Box::new(MultiForm) as Box<MessageFormatter>);
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 39 |   multi_logger.set_format(Box::new(MultiForm) as Box<dyn MessageFormatter>);
[INFO] [stdout]    |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/multi_logger.rs:39:54
[INFO] [stdout]    |
[INFO] [stdout] 39 |   multi_logger.set_format(Box::new(MultiForm) as Box<MessageFormatter>);
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 39 |   multi_logger.set_format(Box::new(MultiForm) as Box<dyn MessageFormatter>);
[INFO] [stdout]    |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/file_log.rs:27:48
[INFO] [stdout]    |
[INFO] [stdout] 27 |   logger.set_format(Box::new(FooFormat) as Box<MessageFormatter>);
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 27 |   logger.set_format(Box::new(FooFormat) as Box<dyn MessageFormatter>);
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/file_log.rs:30:60
[INFO] [stdout]    |
[INFO] [stdout] 30 |   Logger::set_default_formatter(Box::new(FooFormat) as Box<MessageFormatter>);
[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/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] 30 |   Logger::set_default_formatter(Box::new(FooFormat) as Box<dyn MessageFormatter>);
[INFO] [stdout]    |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "4e6a4fc95c0523c8aa893682f7c6d8a4f1661ff836eeb85932c3465c421e14a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e6a4fc95c0523c8aa893682f7c6d8a4f1661ff836eeb85932c3465c421e14a3", kill_on_drop: false }`
[INFO] [stdout] 4e6a4fc95c0523c8aa893682f7c6d8a4f1661ff836eeb85932c3465c421e14a3