[INFO] fetching crate shawshank 0.2.3...
[INFO] building shawshank-0.2.3 against try#d5c88c22807925c189328ef9d923c5d2b11a95b8+rustflags=-Zprofile-closures for pr-87066-3
[INFO] extracting crate shawshank 0.2.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate shawshank 0.2.3 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate shawshank 0.2.3
[INFO] finished tweaking crates.io crate shawshank 0.2.3
[INFO] tweaked toml for crates.io crate shawshank 0.2.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a9b7afebb495aa748945e536b219735378841ec9f6a690c7acb639fdcec9ebcd
[INFO] running `Command { std: "docker" "start" "-a" "a9b7afebb495aa748945e536b219735378841ec9f6a690c7acb639fdcec9ebcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9b7afebb495aa748945e536b219735378841ec9f6a690c7acb639fdcec9ebcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9b7afebb495aa748945e536b219735378841ec9f6a690c7acb639fdcec9ebcd", kill_on_drop: false }`
[INFO] [stdout] a9b7afebb495aa748945e536b219735378841ec9f6a690c7acb639fdcec9ebcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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 -Zprofile-closures" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d809849c6ccd83c95eda689bffaef2c381c014b2cf7eadfad7bfb95972f23b7d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d809849c6ccd83c95eda689bffaef2c381c014b2cf7eadfad7bfb95972f23b7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr] SG_CR_Eslkdjf: autocfg, (d318f0ec49d2844c, 9963dc6836664ff6), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: autocfg, (10275bade51f3a64, 1a4993f89775eba9), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: autocfg, (ad71db94d2b0dded, b3dc5e463857ea36), 32, 32
[INFO] [stderr] SG_CR_Eslkdjf: autocfg, (82926ac54d2532ce, 8542c3146f879d7f), 32, 32
[INFO] [stderr] SG_CR_Eslkdjf: autocfg, (47682469233aa24e, 6234a8c7872b30b8), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: autocfg, (2f2196d24a853f8a, 7c1449fef3a08a41), 8, 16
[INFO] [stderr] SG_CR_Eslkdjf: autocfg, (65e85fdf8a9e1307, 8abe54fcfafac5c9), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: autocfg, (ece079b67c37958b, 2ad04b3daca5c227), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: autocfg, (680b341ec5c76adc, 6c9b8c7d6ea4fc6a), 0, 0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling shawshank v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/traits.rs:25:22
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn with_capacity(usize) -> Self;
[INFO] [stdout]    |                      ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[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/traits.rs:34:26
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn insert(&mut self, Self::Key, Self::Value) -> Option<Self::Value>;
[INFO] [stdout]    |                          ^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Key`
[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/traits.rs:34:37
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn insert(&mut self, Self::Key, Self::Value) -> Option<Self::Value>;
[INFO] [stdout]    |                                     ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Value`
[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/traits.rs:39:19
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn get(&self, Self::Key) -> Option<&Self::Value>;
[INFO] [stdout]    |                   ^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Key`
[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/traits.rs:44:26
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn remove(&mut self, Self::Key) -> Option<Self::Value>;
[INFO] [stdout]    |                          ^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Key`
[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] SG_CR_Eslkdjf: shawshank, (f32cda5e399cc82d, 6ed3529836a61a69), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: shawshank, (6a6e5ee26c611be1, e618e38b0f58e21d), 0, 0
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.21s
[INFO] running `Command { std: "docker" "inspect" "d809849c6ccd83c95eda689bffaef2c381c014b2cf7eadfad7bfb95972f23b7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d809849c6ccd83c95eda689bffaef2c381c014b2cf7eadfad7bfb95972f23b7d", kill_on_drop: false }`
[INFO] [stdout] d809849c6ccd83c95eda689bffaef2c381c014b2cf7eadfad7bfb95972f23b7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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 -Zprofile-closures" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3645b557ed5cc1139ad039d89a05513c4546504dae3f434b2b452cda479d2b35
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3645b557ed5cc1139ad039d89a05513c4546504dae3f434b2b452cda479d2b35", kill_on_drop: false }`
[INFO] [stderr] SG_CR_Eslkdjf: autocfg, (d318f0ec49d2844c, 9963dc6836664ff6), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: autocfg, (10275bade51f3a64, 1a4993f89775eba9), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: autocfg, (ad71db94d2b0dded, b3dc5e463857ea36), 32, 32
[INFO] [stderr] SG_CR_Eslkdjf: autocfg, (82926ac54d2532ce, 8542c3146f879d7f), 32, 32
[INFO] [stderr] SG_CR_Eslkdjf: autocfg, (47682469233aa24e, 6234a8c7872b30b8), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: autocfg, (2f2196d24a853f8a, 7c1449fef3a08a41), 8, 16
[INFO] [stderr] SG_CR_Eslkdjf: autocfg, (65e85fdf8a9e1307, 8abe54fcfafac5c9), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: autocfg, (ece079b67c37958b, 2ad04b3daca5c227), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: autocfg, (680b341ec5c76adc, 6c9b8c7d6ea4fc6a), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: build_script_build, (75b84863966839e5, 8a92c743b00988cf), 0, 0
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/traits.rs:25:22
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn with_capacity(usize) -> Self;
[INFO] [stdout]    |                      ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[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 rand v0.4.6
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/traits.rs:34:26
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn insert(&mut self, Self::Key, Self::Value) -> Option<Self::Value>;
[INFO] [stdout]    |                          ^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Key`
[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] SG_CR_Eslkdjf: shawshank, (f32cda5e399cc82d, 6ed3529836a61a69), 0, 0
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/traits.rs:34:37
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn insert(&mut self, Self::Key, Self::Value) -> Option<Self::Value>;
[INFO] [stdout]    |                                     ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Value`
[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] SG_CR_Eslkdjf: shawshank, (6a6e5ee26c611be1, e618e38b0f58e21d), 0, 0
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/traits.rs:39:19
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn get(&self, Self::Key) -> Option<&Self::Value>;
[INFO] [stdout]    |                   ^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Key`
[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/traits.rs:44:26
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn remove(&mut self, Self::Key) -> Option<Self::Value>;
[INFO] [stdout]    |                          ^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Key`
[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: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] SG_CR_Eslkdjf: rand, (d5015a8c02ff7118, e70836707da39dad), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (c33e8228ef4d3b95, 2d6ca4bd92c47071), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (73a6793981df500, 9ea7a0df690467a7), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (d8ff2f552621b1e1, a17a7748711039ba), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (4d455adf532d9672, 8a28634982653bd8), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (ed75b5e2f3665aa2, 4385f707973d3e6f), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (b6582aa9c9db04c2, 7aa5d671fc00c41d), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (6a201950bd958b83, 83144e08ef857ffe), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (f4edb901cfa4bf68, aebc79b4281ce138), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (f4cc936fabde326d, 2e5a3fa686e06f95), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (430a73cb6571950c, 8fca9879845359c1), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (33973f3323b2d6c4, 61730fb1bf00dec8), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (244767cfee9aefe0, 1ac66c687f40fdbf), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (893aa53486a55c7, dfa264df2657b3a9), 0, 0
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling shawshank v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/traits.rs:25:22
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn with_capacity(usize) -> Self;
[INFO] [stdout]    |                      ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[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/traits.rs:34:26
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn insert(&mut self, Self::Key, Self::Value) -> Option<Self::Value>;
[INFO] [stdout]    |                          ^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Key`
[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/traits.rs:34:37
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn insert(&mut self, Self::Key, Self::Value) -> Option<Self::Value>;
[INFO] [stdout]    |                                     ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Value`
[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/traits.rs:39:19
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn get(&self, Self::Key) -> Option<&Self::Value>;
[INFO] [stdout]    |                   ^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Key`
[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/traits.rs:44:26
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn remove(&mut self, Self::Key) -> Option<Self::Value>;
[INFO] [stdout]    |                          ^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Key`
[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: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.26s
[INFO] running `Command { std: "docker" "inspect" "3645b557ed5cc1139ad039d89a05513c4546504dae3f434b2b452cda479d2b35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3645b557ed5cc1139ad039d89a05513c4546504dae3f434b2b452cda479d2b35", kill_on_drop: false }`
[INFO] [stdout] 3645b557ed5cc1139ad039d89a05513c4546504dae3f434b2b452cda479d2b35