[INFO] fetching crate rel 0.2.0... [INFO] testing rel-0.2.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031 [INFO] extracting crate rel 0.2.0 into /workspace/builds/worker-84/source [INFO] validating manifest of crates.io crate rel 0.2.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate rel 0.2.0 [INFO] finished tweaking crates.io crate rel 0.2.0 [INFO] tweaked toml for crates.io crate rel 0.2.0 written to /workspace/builds/worker-84/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3ce14d9e928e965c2d73a206a7a827be3feaf3ccf8151dd41da5bbee5720d5b6 [INFO] running `Command { std: "docker" "start" "-a" "3ce14d9e928e965c2d73a206a7a827be3feaf3ccf8151dd41da5bbee5720d5b6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3ce14d9e928e965c2d73a206a7a827be3feaf3ccf8151dd41da5bbee5720d5b6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3ce14d9e928e965c2d73a206a7a827be3feaf3ccf8151dd41da5bbee5720d5b6", kill_on_drop: false }` [INFO] [stdout] 3ce14d9e928e965c2d73a206a7a827be3feaf3ccf8151dd41da5bbee5720d5b6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 46f6a8273749bfd253703b7c4f81e48618cf9eaf83fa51a288d7fbb40e50e728 [INFO] running `Command { std: "docker" "start" "-a" "46f6a8273749bfd253703b7c4f81e48618cf9eaf83fa51a288d7fbb40e50e728", kill_on_drop: false }` [INFO] [stderr] Compiling rel v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/eq.rs:2:21 [INFO] [stdout] | [INFO] [stdout] 2 | fn equal(&self, &A, &A) -> bool; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/eq.rs:2:25 [INFO] [stdout] | [INFO] [stdout] 2 | fn equal(&self, &A, &A) -> bool; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/ord.rs:9:27 [INFO] [stdout] | [INFO] [stdout] 9 | fn partial_cmp(&self, &A, &A) -> Option; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/ord.rs:9:31 [INFO] [stdout] | [INFO] [stdout] 9 | fn partial_cmp(&self, &A, &A) -> Option; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/ord.rs:25:19 [INFO] [stdout] | [INFO] [stdout] 25 | fn cmp(&self, &A, &A) -> Ordering; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/ord.rs:25:23 [INFO] [stdout] | [INFO] [stdout] 25 | fn cmp(&self, &A, &A) -> Ordering; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.10s [INFO] running `Command { std: "docker" "inspect" "46f6a8273749bfd253703b7c4f81e48618cf9eaf83fa51a288d7fbb40e50e728", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "46f6a8273749bfd253703b7c4f81e48618cf9eaf83fa51a288d7fbb40e50e728", kill_on_drop: false }` [INFO] [stdout] 46f6a8273749bfd253703b7c4f81e48618cf9eaf83fa51a288d7fbb40e50e728 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 27380f4a1428d859dce61885aab09929b1e124802e3d3aa672a6b29b7ebde4ae [INFO] running `Command { std: "docker" "start" "-a" "27380f4a1428d859dce61885aab09929b1e124802e3d3aa672a6b29b7ebde4ae", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/eq.rs:2:21 [INFO] [stdout] | [INFO] [stdout] 2 | fn equal(&self, &A, &A) -> bool; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rel v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/eq.rs:2:25 [INFO] [stdout] | [INFO] [stdout] 2 | fn equal(&self, &A, &A) -> bool; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/ord.rs:9:27 [INFO] [stdout] | [INFO] [stdout] 9 | fn partial_cmp(&self, &A, &A) -> Option; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/ord.rs:9:31 [INFO] [stdout] | [INFO] [stdout] 9 | fn partial_cmp(&self, &A, &A) -> Option; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/ord.rs:25:19 [INFO] [stdout] | [INFO] [stdout] 25 | fn cmp(&self, &A, &A) -> Ordering; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/ord.rs:25:23 [INFO] [stdout] | [INFO] [stdout] 25 | fn cmp(&self, &A, &A) -> Ordering; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/eq.rs:2:21 [INFO] [stdout] | [INFO] [stdout] 2 | fn equal(&self, &A, &A) -> bool; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/eq.rs:2:25 [INFO] [stdout] | [INFO] [stdout] 2 | fn equal(&self, &A, &A) -> bool; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/ord.rs:9:27 [INFO] [stdout] | [INFO] [stdout] 9 | fn partial_cmp(&self, &A, &A) -> Option; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/ord.rs:9:31 [INFO] [stdout] | [INFO] [stdout] 9 | fn partial_cmp(&self, &A, &A) -> Option; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/ord.rs:25:19 [INFO] [stdout] | [INFO] [stdout] 25 | fn cmp(&self, &A, &A) -> Ordering; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/ord.rs:25:23 [INFO] [stdout] | [INFO] [stdout] 25 | fn cmp(&self, &A, &A) -> Ordering; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.30s [INFO] running `Command { std: "docker" "inspect" "27380f4a1428d859dce61885aab09929b1e124802e3d3aa672a6b29b7ebde4ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "27380f4a1428d859dce61885aab09929b1e124802e3d3aa672a6b29b7ebde4ae", kill_on_drop: false }` [INFO] [stdout] 27380f4a1428d859dce61885aab09929b1e124802e3d3aa672a6b29b7ebde4ae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 0fc1366fc313881603bc7c8fa92723dc6990646e7390add48f336ba4b40e780d [INFO] running `Command { std: "docker" "start" "-a" "0fc1366fc313881603bc7c8fa92723dc6990646e7390add48f336ba4b40e780d", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stderr] --> src/eq.rs:2:21 [INFO] [stderr] | [INFO] [stderr] 2 | fn equal(&self, &A, &A) -> bool; [INFO] [stderr] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(anonymous_parameters)]` on by default [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 [INFO] [stderr] [INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stderr] --> src/eq.rs:2:25 [INFO] [stderr] | [INFO] [stderr] 2 | fn equal(&self, &A, &A) -> bool; [INFO] [stderr] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stderr] [INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stderr] --> src/ord.rs:9:27 [INFO] [stderr] | [INFO] [stderr] 9 | fn partial_cmp(&self, &A, &A) -> Option; [INFO] [stderr] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stderr] [INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stderr] --> src/ord.rs:9:31 [INFO] [stderr] | [INFO] [stderr] 9 | fn partial_cmp(&self, &A, &A) -> Option; [INFO] [stderr] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stderr] [INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stderr] --> src/ord.rs:25:19 [INFO] [stderr] | [INFO] [stderr] 25 | fn cmp(&self, &A, &A) -> Ordering; [INFO] [stderr] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stderr] [INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stderr] --> src/ord.rs:25:23 [INFO] [stderr] | [INFO] [stderr] 25 | fn cmp(&self, &A, &A) -> Ordering; [INFO] [stderr] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [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 [INFO] [stderr] [INFO] [stderr] warning: `rel` (lib) generated 6 warnings [INFO] [stderr] warning: `rel` (lib test) generated 6 warnings (6 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.32s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rel-821b736476593831) [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] [stdout] [INFO] [stderr] Doc-tests rel [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] [stdout] [INFO] running `Command { std: "docker" "inspect" "0fc1366fc313881603bc7c8fa92723dc6990646e7390add48f336ba4b40e780d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0fc1366fc313881603bc7c8fa92723dc6990646e7390add48f336ba4b40e780d", kill_on_drop: false }` [INFO] [stdout] 0fc1366fc313881603bc7c8fa92723dc6990646e7390add48f336ba4b40e780d