[INFO] fetching crate benchpmc 1.0.0...
[INFO] checking benchpmc-1.0.0 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate benchpmc 1.0.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate benchpmc 1.0.0 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate benchpmc 1.0.0
[INFO] finished tweaking crates.io crate benchpmc 1.0.0
[INFO] tweaked toml for crates.io crate benchpmc 1.0.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded textwrap v0.9.0
[INFO] [stderr]   Downloaded gcc v0.3.55
[INFO] [stderr]   Downloaded pmc-sys v0.1.3
[INFO] [stderr]   Downloaded strsim v0.7.0
[INFO] [stderr]   Downloaded pmc-rs v0.1.1
[INFO] [stderr]   Downloaded nix v0.10.0
[INFO] [stderr]   Downloaded clap v2.31.2
[INFO] [stderr]   Downloaded bindgen v0.64.0
[INFO] [stderr]   Downloaded separator v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51b402fe106cbd9be7b2d9a3f44f8270fc6697ace3cab179181e05730544d448
[INFO] running `Command { std: "docker" "start" "-a" "51b402fe106cbd9be7b2d9a3f44f8270fc6697ace3cab179181e05730544d448", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51b402fe106cbd9be7b2d9a3f44f8270fc6697ace3cab179181e05730544d448", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51b402fe106cbd9be7b2d9a3f44f8270fc6697ace3cab179181e05730544d448", kill_on_drop: false }`
[INFO] [stdout] 51b402fe106cbd9be7b2d9a3f44f8270fc6697ace3cab179181e05730544d448
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5cca63e9d195dbb695a22bbf863c96ad3ec0f12cf648cd4ae1e806ae773305c0
[INFO] running `Command { std: "docker" "start" "-a" "5cca63e9d195dbb695a22bbf863c96ad3ec0f12cf648cd4ae1e806ae773305c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking separator v0.3.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking benchpmc v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::printers::RelativePrinter`
[INFO] [stdout]   --> src/event/mod.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use self::printers::RelativePrinter;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::printers::RSDPrinter`
[INFO] [stdout]   --> src/event/mod.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub use self::printers::RSDPrinter;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:146:21
[INFO] [stdout]     |
[INFO] [stdout] 146 | ) -> Result<Vec<Box<DisplayCounter + 'a>>, String> {
[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 an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 146 | ) -> Result<Vec<Box<dyn DisplayCounter + 'a>>, String> {
[INFO] [stdout]     |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::printers::RelativePrinter`
[INFO] [stdout]   --> src/event/mod.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use self::printers::RelativePrinter;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::printers::RSDPrinter`
[INFO] [stdout]   --> src/event/mod.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub use self::printers::RSDPrinter;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:146:21
[INFO] [stdout]     |
[INFO] [stdout] 146 | ) -> Result<Vec<Box<DisplayCounter + 'a>>, String> {
[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 an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 146 | ) -> Result<Vec<Box<dyn DisplayCounter + 'a>>, String> {
[INFO] [stdout]     |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matchers`
[INFO] [stdout]    --> src/main.rs:145:5
[INFO] [stdout]     |
[INFO] [stdout] 145 |     matchers: &'a clap::ArgMatches<'a>,
[INFO] [stdout]     |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matchers`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/event/printers/relative.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 72 | / impl<T> RelativePrinter<T>
[INFO] [stdout] 73 | | where
[INFO] [stdout] 74 | |     T: Printable + Counter + Display,
[INFO] [stdout]    | |_____________________________________- associated function in this implementation
[INFO] [stdout] 75 |   {
[INFO] [stdout] 76 |       pub fn new(absolute: T, relatives: Vec<Box<T>>) -> Self {
[INFO] [stdout]    |              ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/event/printers/rsd/mod.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 83 | / impl<T> RSDPrinter<T>
[INFO] [stdout] 84 | | where
[INFO] [stdout] 85 | |     T: Counter + Printable + Display,
[INFO] [stdout]    | |_____________________________________- associated function in this implementation
[INFO] [stdout] 86 |   {
[INFO] [stdout] 87 |       pub fn new(counter: T) -> Self {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matchers`
[INFO] [stdout]    --> src/main.rs:145:5
[INFO] [stdout]     |
[INFO] [stdout] 145 |     matchers: &'a clap::ArgMatches<'a>,
[INFO] [stdout]     |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matchers`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/event/printers/relative.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 72 | / impl<T> RelativePrinter<T>
[INFO] [stdout] 73 | | where
[INFO] [stdout] 74 | |     T: Printable + Counter + Display,
[INFO] [stdout]    | |_____________________________________- associated function in this implementation
[INFO] [stdout] 75 |   {
[INFO] [stdout] 76 |       pub fn new(absolute: T, relatives: Vec<Box<T>>) -> Self {
[INFO] [stdout]    |              ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.99s
[INFO] running `Command { std: "docker" "inspect" "5cca63e9d195dbb695a22bbf863c96ad3ec0f12cf648cd4ae1e806ae773305c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cca63e9d195dbb695a22bbf863c96ad3ec0f12cf648cd4ae1e806ae773305c0", kill_on_drop: false }`
[INFO] [stdout] 5cca63e9d195dbb695a22bbf863c96ad3ec0f12cf648cd4ae1e806ae773305c0
[INFO] checking benchpmc-1.0.0 against try#bfe97fcae016881ad333f0ff8cea2cadb9cf136c for pr-121848
[INFO] extracting crate benchpmc 1.0.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate benchpmc 1.0.0 on toolchain bfe97fcae016881ad333f0ff8cea2cadb9cf136c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate benchpmc 1.0.0
[INFO] finished tweaking crates.io crate benchpmc 1.0.0
[INFO] tweaked toml for crates.io crate benchpmc 1.0.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48dfa80290d086f7e2af9f740dfe467fdbb23734b53be2da5979294e0f6b795a
[INFO] running `Command { std: "docker" "start" "-a" "48dfa80290d086f7e2af9f740dfe467fdbb23734b53be2da5979294e0f6b795a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48dfa80290d086f7e2af9f740dfe467fdbb23734b53be2da5979294e0f6b795a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48dfa80290d086f7e2af9f740dfe467fdbb23734b53be2da5979294e0f6b795a", kill_on_drop: false }`
[INFO] [stdout] 48dfa80290d086f7e2af9f740dfe467fdbb23734b53be2da5979294e0f6b795a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44be8fd4f5b109fef8ab8f7c2baea13c2daea88152df34af96ac57bc0248eaed
[INFO] running `Command { std: "docker" "start" "-a" "44be8fd4f5b109fef8ab8f7c2baea13c2daea88152df34af96ac57bc0248eaed", kill_on_drop: false }`
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking separator v0.3.1
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking benchpmc v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::printers::RelativePrinter`
[INFO] [stdout]   --> src/event/mod.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use self::printers::RelativePrinter;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::printers::RSDPrinter`
[INFO] [stdout]   --> src/event/mod.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub use self::printers::RSDPrinter;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:146:21
[INFO] [stdout]     |
[INFO] [stdout] 146 | ) -> Result<Vec<Box<DisplayCounter + 'a>>, String> {
[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 an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 146 | ) -> Result<Vec<Box<dyn DisplayCounter + 'a>>, String> {
[INFO] [stdout]     |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::printers::RelativePrinter`
[INFO] [stdout]   --> src/event/mod.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use self::printers::RelativePrinter;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::printers::RSDPrinter`
[INFO] [stdout]   --> src/event/mod.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub use self::printers::RSDPrinter;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:146:21
[INFO] [stdout]     |
[INFO] [stdout] 146 | ) -> Result<Vec<Box<DisplayCounter + 'a>>, String> {
[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 an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 146 | ) -> Result<Vec<Box<dyn DisplayCounter + 'a>>, String> {
[INFO] [stdout]     |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matchers`
[INFO] [stdout]    --> src/main.rs:145:5
[INFO] [stdout]     |
[INFO] [stdout] 145 |     matchers: &'a clap::ArgMatches<'a>,
[INFO] [stdout]     |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matchers`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/event/printers/relative.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 72 | / impl<T> RelativePrinter<T>
[INFO] [stdout] 73 | | where
[INFO] [stdout] 74 | |     T: Printable + Counter + Display,
[INFO] [stdout]    | |_____________________________________- associated function in this implementation
[INFO] [stdout] 75 |   {
[INFO] [stdout] 76 |       pub fn new(absolute: T, relatives: Vec<Box<T>>) -> Self {
[INFO] [stdout]    |              ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/event/printers/rsd/mod.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 83 | / impl<T> RSDPrinter<T>
[INFO] [stdout] 84 | | where
[INFO] [stdout] 85 | |     T: Counter + Printable + Display,
[INFO] [stdout]    | |_____________________________________- associated function in this implementation
[INFO] [stdout] 86 |   {
[INFO] [stdout] 87 |       pub fn new(counter: T) -> Self {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matchers`
[INFO] [stdout]    --> src/main.rs:145:5
[INFO] [stdout]     |
[INFO] [stdout] 145 |     matchers: &'a clap::ArgMatches<'a>,
[INFO] [stdout]     |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matchers`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/event/printers/relative.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 72 | / impl<T> RelativePrinter<T>
[INFO] [stdout] 73 | | where
[INFO] [stdout] 74 | |     T: Printable + Counter + Display,
[INFO] [stdout]    | |_____________________________________- associated function in this implementation
[INFO] [stdout] 75 |   {
[INFO] [stdout] 76 |       pub fn new(absolute: T, relatives: Vec<Box<T>>) -> Self {
[INFO] [stdout]    |              ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.02s
[INFO] running `Command { std: "docker" "inspect" "44be8fd4f5b109fef8ab8f7c2baea13c2daea88152df34af96ac57bc0248eaed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44be8fd4f5b109fef8ab8f7c2baea13c2daea88152df34af96ac57bc0248eaed", kill_on_drop: false }`
[INFO] [stdout] 44be8fd4f5b109fef8ab8f7c2baea13c2daea88152df34af96ac57bc0248eaed
