[INFO] fetching crate data_structure_traits 0.1.12...
[INFO] testing data_structure_traits-0.1.12 against 1.69.0 for beta-1.70-1
[INFO] extracting crate data_structure_traits 0.1.12 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate data_structure_traits 0.1.12 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate data_structure_traits 0.1.12
[INFO] finished tweaking crates.io crate data_structure_traits 0.1.12
[INFO] tweaked toml for crates.io crate data_structure_traits 0.1.12 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 528bec4b427941f47e537ad27dbef3018f771b50f144785f224df59dab843c84
[INFO] running `Command { std: "docker" "start" "-a" "528bec4b427941f47e537ad27dbef3018f771b50f144785f224df59dab843c84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "528bec4b427941f47e537ad27dbef3018f771b50f144785f224df59dab843c84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "528bec4b427941f47e537ad27dbef3018f771b50f144785f224df59dab843c84", kill_on_drop: false }`
[INFO] [stdout] 528bec4b427941f47e537ad27dbef3018f771b50f144785f224df59dab843c84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23dde5d68fea20423db86014131ec465c1632bcc3eb31f0801b4f53ef719c658
[INFO] running `Command { std: "docker" "start" "-a" "23dde5d68fea20423db86014131ec465c1632bcc3eb31f0801b4f53ef719c658", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling data_structure_traits v0.1.12 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/add.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn add(&mut self, V) -> Self::Output;
[INFO] [stdout]   |                       ^ help: try naming the parameter or explicitly ignoring it: `_: V`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]   = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/add_immut.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn add(&self, V) -> Self;
[INFO] [stdout]   |                   ^ help: try naming the parameter or explicitly ignoring it: `_: V`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/create.rs:6:29
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn create_with_capacity(usize) -> Self;
[INFO] [stdout]   |                             ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/create.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn add_element(self, T) -> Self;
[INFO] [stdout]   |                          ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/deque.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn push_front(&mut self, T);
[INFO] [stdout]   |                              ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/deque.rs:3:29
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fn push_back(&mut self, T);
[INFO] [stdout]   |                             ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/deque_immut.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn push_front(&self, T) -> Self;
[INFO] [stdout]   |                          ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/deque_immut.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fn push_back(&self, T) -> Self;
[INFO] [stdout]   |                         ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/get.rs:7:19
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn get(&self, K) -> Option<&Self::Output>;
[INFO] [stdout]   |                   ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/get_mut.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn get_mut(&mut self, K) -> Option<&mut Self::Output>;
[INFO] [stdout]   |                           ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/insert.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn insert(&mut self, K, V) -> Self::Output;
[INFO] [stdout]   |                          ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/insert.rs:8:29
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn insert(&mut self, K, V) -> Self::Output;
[INFO] [stdout]   |                             ^ help: try naming the parameter or explicitly ignoring it: `_: V`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/insert_immut.rs:6:22
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn insert(&self, K, V) -> Self;
[INFO] [stdout]   |                      ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/insert_immut.rs:6:25
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn insert(&self, K, V) -> Self;
[INFO] [stdout]   |                         ^ help: try naming the parameter or explicitly ignoring it: `_: V`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/queue.rs:2:27
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn enqueue(&mut self, T);
[INFO] [stdout]   |                           ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/queue_immut.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn enqueue(&self, T) -> Self;
[INFO] [stdout]   |                       ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/remove.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn remove(&mut self, K) -> Self::Output;
[INFO] [stdout]   |                          ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/remove_immut.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn remove(&self, K) -> Self;
[INFO] [stdout]   |                      ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/stack.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn push(&mut self, T);
[INFO] [stdout]   |                        ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/stack_immut.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn push(&self, T) -> Self;
[INFO] [stdout]   |                    ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "23dde5d68fea20423db86014131ec465c1632bcc3eb31f0801b4f53ef719c658", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23dde5d68fea20423db86014131ec465c1632bcc3eb31f0801b4f53ef719c658", kill_on_drop: false }`
[INFO] [stdout] 23dde5d68fea20423db86014131ec465c1632bcc3eb31f0801b4f53ef719c658
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e30f0c3c6261022e8f16278768a40150dda346e636b9d0c0f7ea7418c086474
[INFO] running `Command { std: "docker" "start" "-a" "5e30f0c3c6261022e8f16278768a40150dda346e636b9d0c0f7ea7418c086474", kill_on_drop: false }`
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/add.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn add(&mut self, V) -> Self::Output;
[INFO] [stdout]   |                       ^ help: try naming the parameter or explicitly ignoring it: `_: V`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]   = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/add_immut.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn add(&self, V) -> Self;
[INFO] [stdout]   |                   ^ help: try naming the parameter or explicitly ignoring it: `_: V`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/create.rs:6:29
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn create_with_capacity(usize) -> Self;
[INFO] [stdout]   |                             ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/create.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn add_element(self, T) -> Self;
[INFO] [stdout]   |                          ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/deque.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn push_front(&mut self, T);
[INFO] [stdout]   |                              ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/deque.rs:3:29
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fn push_back(&mut self, T);
[INFO] [stdout]   |                             ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/deque_immut.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn push_front(&self, T) -> Self;
[INFO] [stdout]   |                          ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/deque_immut.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fn push_back(&self, T) -> Self;
[INFO] [stdout]   |                         ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/get.rs:7:19
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn get(&self, K) -> Option<&Self::Output>;
[INFO] [stdout]   |                   ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/get_mut.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn get_mut(&mut self, K) -> Option<&mut Self::Output>;
[INFO] [stdout]   |                           ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/insert.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn insert(&mut self, K, V) -> Self::Output;
[INFO] [stdout]   |                          ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/insert.rs:8:29
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn insert(&mut self, K, V) -> Self::Output;
[INFO] [stdout]   |                             ^ help: try naming the parameter or explicitly ignoring it: `_: V`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/insert_immut.rs:6:22
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn insert(&self, K, V) -> Self;
[INFO] [stdout]   |                      ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/insert_immut.rs:6:25
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn insert(&self, K, V) -> Self;
[INFO] [stdout]   |                         ^ help: try naming the parameter or explicitly ignoring it: `_: V`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/queue.rs:2:27
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn enqueue(&mut self, T);
[INFO] [stdout]   |                           ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/queue_immut.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn enqueue(&self, T) -> Self;
[INFO] [stdout]   |                       ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/remove.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn remove(&mut self, K) -> Self::Output;
[INFO] [stdout]   |                          ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/remove_immut.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn remove(&self, K) -> Self;
[INFO] [stdout]   |                      ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/stack.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn push(&mut self, T);
[INFO] [stdout]   |                        ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/stack_immut.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn push(&self, T) -> Self;
[INFO] [stdout]   |                    ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling data_structure_traits v0.1.12 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> tests/test.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/add.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn add(&mut self, V) -> Self::Output;
[INFO] [stdout]   |                       ^ help: try naming the parameter or explicitly ignoring it: `_: V`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]   = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/add_immut.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn add(&self, V) -> Self;
[INFO] [stdout]   |                   ^ help: try naming the parameter or explicitly ignoring it: `_: V`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/create.rs:6:29
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn create_with_capacity(usize) -> Self;
[INFO] [stdout]   |                             ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/create.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn add_element(self, T) -> Self;
[INFO] [stdout]   |                          ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/deque.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn push_front(&mut self, T);
[INFO] [stdout]   |                              ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/deque.rs:3:29
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fn push_back(&mut self, T);
[INFO] [stdout]   |                             ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/deque_immut.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn push_front(&self, T) -> Self;
[INFO] [stdout]   |                          ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/deque_immut.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fn push_back(&self, T) -> Self;
[INFO] [stdout]   |                         ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/get.rs:7:19
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn get(&self, K) -> Option<&Self::Output>;
[INFO] [stdout]   |                   ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/get_mut.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn get_mut(&mut self, K) -> Option<&mut Self::Output>;
[INFO] [stdout]   |                           ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/insert.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn insert(&mut self, K, V) -> Self::Output;
[INFO] [stdout]   |                          ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/insert.rs:8:29
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn insert(&mut self, K, V) -> Self::Output;
[INFO] [stdout]   |                             ^ help: try naming the parameter or explicitly ignoring it: `_: V`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/insert_immut.rs:6:22
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn insert(&self, K, V) -> Self;
[INFO] [stdout]   |                      ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/insert_immut.rs:6:25
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn insert(&self, K, V) -> Self;
[INFO] [stdout]   |                         ^ help: try naming the parameter or explicitly ignoring it: `_: V`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/queue.rs:2:27
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn enqueue(&mut self, T);
[INFO] [stdout]   |                           ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/queue_immut.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn enqueue(&self, T) -> Self;
[INFO] [stdout]   |                       ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/remove.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn remove(&mut self, K) -> Self::Output;
[INFO] [stdout]   |                          ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/remove_immut.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn remove(&self, K) -> Self;
[INFO] [stdout]   |                      ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/stack.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn push(&mut self, T);
[INFO] [stdout]   |                        ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/stack_immut.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn push(&self, T) -> Self;
[INFO] [stdout]   |                    ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "5e30f0c3c6261022e8f16278768a40150dda346e636b9d0c0f7ea7418c086474", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e30f0c3c6261022e8f16278768a40150dda346e636b9d0c0f7ea7418c086474", kill_on_drop: false }`
[INFO] [stdout] 5e30f0c3c6261022e8f16278768a40150dda346e636b9d0c0f7ea7418c086474
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 90819a236338acc3086ef82de621dea1a593f3507bb8142c64bd2afee529917e
[INFO] running `Command { std: "docker" "start" "-a" "90819a236338acc3086ef82de621dea1a593f3507bb8142c64bd2afee529917e", kill_on_drop: false }`
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/add.rs:7:23
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fn add(&mut self, V) -> Self::Output;
[INFO] [stderr]   |                       ^ help: try naming the parameter or explicitly ignoring it: `_: V`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr]   = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/add_immut.rs:5:19
[INFO] [stderr]   |
[INFO] [stderr] 5 |     fn add(&self, V) -> Self;
[INFO] [stderr]   |                   ^ help: try naming the parameter or explicitly ignoring it: `_: V`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/create.rs:6:29
[INFO] [stderr]   |
[INFO] [stderr] 6 |     fn create_with_capacity(usize) -> Self;
[INFO] [stderr]   |                             ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/create.rs:7:26
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fn add_element(self, T) -> Self;
[INFO] [stderr]   |                          ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/deque.rs:2:30
[INFO] [stderr]   |
[INFO] [stderr] 2 |     fn push_front(&mut self, T);
[INFO] [stderr]   |                              ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/deque.rs:3:29
[INFO] [stderr]   |
[INFO] [stderr] 3 |     fn push_back(&mut self, T);
[INFO] [stderr]   |                             ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/deque_immut.rs:2:26
[INFO] [stderr]   |
[INFO] [stderr] 2 |     fn push_front(&self, T) -> Self;
[INFO] [stderr]   |                          ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/deque_immut.rs:3:25
[INFO] [stderr]   |
[INFO] [stderr] 3 |     fn push_back(&self, T) -> Self;
[INFO] [stderr]   |                         ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/get.rs:7:19
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fn get(&self, K) -> Option<&Self::Output>;
[INFO] [stderr]   |                   ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/get_mut.rs:7:27
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fn get_mut(&mut self, K) -> Option<&mut Self::Output>;
[INFO] [stderr]   |                           ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/insert.rs:8:26
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn insert(&mut self, K, V) -> Self::Output;
[INFO] [stderr]   |                          ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/insert.rs:8:29
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn insert(&mut self, K, V) -> Self::Output;
[INFO] [stderr]   |                             ^ help: try naming the parameter or explicitly ignoring it: `_: V`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/insert_immut.rs:6:22
[INFO] [stderr]   |
[INFO] [stderr] 6 |     fn insert(&self, K, V) -> Self;
[INFO] [stderr]   |                      ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/insert_immut.rs:6:25
[INFO] [stderr]   |
[INFO] [stderr] 6 |     fn insert(&self, K, V) -> Self;
[INFO] [stderr]   |                         ^ help: try naming the parameter or explicitly ignoring it: `_: V`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/queue.rs:2:27
[INFO] [stderr]   |
[INFO] [stderr] 2 |     fn enqueue(&mut self, T);
[INFO] [stderr]   |                           ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/queue_immut.rs:2:23
[INFO] [stderr]   |
[INFO] [stderr] 2 |     fn enqueue(&self, T) -> Self;
[INFO] [stderr]   |                       ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/remove.rs:7:26
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fn remove(&mut self, K) -> Self::Output;
[INFO] [stderr]   |                          ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/remove_immut.rs:5:22
[INFO] [stderr]   |
[INFO] [stderr] 5 |     fn remove(&self, K) -> Self;
[INFO] [stderr]   |                      ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/stack.rs:2:24
[INFO] [stderr]   |
[INFO] [stderr] 2 |     fn push(&mut self, T);
[INFO] [stderr]   |                        ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/stack_immut.rs:2:20
[INFO] [stderr]   |
[INFO] [stderr] 2 |     fn push(&self, T) -> Self;
[INFO] [stderr]   |                    ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: `data_structure_traits` (lib) generated 20 warnings (run `cargo fix --lib -p data_structure_traits` to apply 20 suggestions)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> tests/test.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `data_structure_traits` (test "test") generated 1 warning
[INFO] [stderr] warning: `data_structure_traits` (lib test) generated 20 warnings (20 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/data_structure_traits-8c1a70bcf9e1ad28)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-11de7c1b0e7dc20b)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_get ... ok
[INFO] [stdout] test test_len ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests data_structure_traits
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/macros.rs - macros::collection (line 12) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.22s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "90819a236338acc3086ef82de621dea1a593f3507bb8142c64bd2afee529917e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90819a236338acc3086ef82de621dea1a593f3507bb8142c64bd2afee529917e", kill_on_drop: false }`
[INFO] [stdout] 90819a236338acc3086ef82de621dea1a593f3507bb8142c64bd2afee529917e
