[INFO] fetching crate tuple 0.5.1...
[INFO] testing tuple-0.5.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate tuple 0.5.1 into /workspace/builds/worker-24/source
[INFO] validating manifest of crates.io crate tuple 0.5.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tuple 0.5.1
[INFO] finished tweaking crates.io crate tuple 0.5.1
[INFO] tweaked toml for crates.io crate tuple 0.5.1 written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d22ed3abc0fb66b11535dddddf45e859d62376853b83688eb59df40a61d945b7
[INFO] running `Command { std: "docker" "start" "-a" "d22ed3abc0fb66b11535dddddf45e859d62376853b83688eb59df40a61d945b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d22ed3abc0fb66b11535dddddf45e859d62376853b83688eb59df40a61d945b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d22ed3abc0fb66b11535dddddf45e859d62376853b83688eb59df40a61d945b7", kill_on_drop: false }`
[INFO] [stdout] d22ed3abc0fb66b11535dddddf45e859d62376853b83688eb59df40a61d945b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f8d0774f00c112b9fc9ca15a5789970985d0bc19f14f632383de2c452343890
[INFO] running `Command { std: "docker" "start" "-a" "1f8d0774f00c112b9fc9ca15a5789970985d0bc19f14f632383de2c452343890", kill_on_drop: false }`
[INFO] [stderr]    Compiling tuple v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/lib.rs:257:14
[INFO] [stdout]     |
[INFO] [stdout] 257 |     fn splat(T) -> Self;
[INFO] [stdout]     |              ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[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: unnecessary parentheses around type
[INFO] [stdout]    --> src/utils.rs:42:33
[INFO] [stdout]     |
[INFO] [stdout] 42  |     ( ; $($args:ident),* ) => ( ($($args),*) )
[INFO] [stdout]     |                                 ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/m_tuple.rs:231:1
[INFO] [stdout]     |
[INFO] [stdout] 231 | impl_tuple!(m_tuple);
[INFO] [stdout]     | --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `x_tuple_ident` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/utils.rs:42:33
[INFO] [stdout]     |
[INFO] [stdout] 42  |     ( ; $($args:ident),* ) => ( ($($args),*) )
[INFO] [stdout]     |                                 ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/m_tuple.rs:231:1
[INFO] [stdout]     |
[INFO] [stdout] 231 | impl_tuple!(m_tuple);
[INFO] [stdout]     | --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `x_tuple_ident` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/utils.rs:42:33
[INFO] [stdout]     |
[INFO] [stdout] 42  |     ( ; $($args:ident),* ) => ( ($($args),*) )
[INFO] [stdout]     |                                 ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/m_tuple.rs:231:1
[INFO] [stdout]     |
[INFO] [stdout] 231 | impl_tuple!(m_tuple);
[INFO] [stdout]     | --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `x_tuple_ident` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/m_tuple.rs:177:39
[INFO] [stdout]     |
[INFO] [stdout] 177 |         impl<$($l,)* $($r),*> OpSplit<($($l),*)> for ($($l,)* $($r),*) {
[INFO] [stdout]     |                                       ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] ...
[INFO] [stdout] 232 | m_join!();
[INFO] [stdout]     | ---------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/m_tuple.rs:178:22
[INFO] [stdout]     |
[INFO] [stdout] 178 |             type R = ($($r),*);
[INFO] [stdout]     |                      ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] ...
[INFO] [stdout] 232 | m_join!();
[INFO] [stdout]     | ---------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/m_tuple.rs:180:32
[INFO] [stdout]     |
[INFO] [stdout] 180 |             fn split(self) -> (($($l),*), Self::R) {
[INFO] [stdout]     |                                ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] ...
[INFO] [stdout] 232 | m_join!();
[INFO] [stdout]     | ---------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::iter::IntoIterator`
[INFO] [stdout]  --> src/m_iter.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::iter::IntoIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.25s
[INFO] running `Command { std: "docker" "inspect" "1f8d0774f00c112b9fc9ca15a5789970985d0bc19f14f632383de2c452343890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f8d0774f00c112b9fc9ca15a5789970985d0bc19f14f632383de2c452343890", kill_on_drop: false }`
[INFO] [stdout] 1f8d0774f00c112b9fc9ca15a5789970985d0bc19f14f632383de2c452343890
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d9675d7d363f41d547383244e60fafd7c6fb55096e7b6b937f88ad22f8ae042
[INFO] running `Command { std: "docker" "start" "-a" "3d9675d7d363f41d547383244e60fafd7c6fb55096e7b6b937f88ad22f8ae042", 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/lib.rs:257:14
[INFO] [stdout]     |
[INFO] [stdout] 257 |     fn splat(T) -> Self;
[INFO] [stdout]     |              ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[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: unnecessary parentheses around type
[INFO] [stdout]    --> src/utils.rs:42:33
[INFO] [stdout]     |
[INFO] [stdout] 42  |     ( ; $($args:ident),* ) => ( ($($args),*) )
[INFO] [stdout]     |                                 ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/m_tuple.rs:231:1
[INFO] [stdout]     |
[INFO] [stdout] 231 | impl_tuple!(m_tuple);
[INFO] [stdout]     | --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `x_tuple_ident` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tuple v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/utils.rs:42:33
[INFO] [stdout]     |
[INFO] [stdout] 42  |     ( ; $($args:ident),* ) => ( ($($args),*) )
[INFO] [stdout]     |                                 ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/m_tuple.rs:231:1
[INFO] [stdout]     |
[INFO] [stdout] 231 | impl_tuple!(m_tuple);
[INFO] [stdout]     | --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `x_tuple_ident` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/utils.rs:42:33
[INFO] [stdout]     |
[INFO] [stdout] 42  |     ( ; $($args:ident),* ) => ( ($($args),*) )
[INFO] [stdout]     |                                 ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/m_tuple.rs:231:1
[INFO] [stdout]     |
[INFO] [stdout] 231 | impl_tuple!(m_tuple);
[INFO] [stdout]     | --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `x_tuple_ident` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/m_tuple.rs:177:39
[INFO] [stdout]     |
[INFO] [stdout] 177 |         impl<$($l,)* $($r),*> OpSplit<($($l),*)> for ($($l,)* $($r),*) {
[INFO] [stdout]     |                                       ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] ...
[INFO] [stdout] 232 | m_join!();
[INFO] [stdout]     | ---------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/m_tuple.rs:178:22
[INFO] [stdout]     |
[INFO] [stdout] 178 |             type R = ($($r),*);
[INFO] [stdout]     |                      ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] ...
[INFO] [stdout] 232 | m_join!();
[INFO] [stdout]     | ---------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/m_tuple.rs:180:32
[INFO] [stdout]     |
[INFO] [stdout] 180 |             fn split(self) -> (($($l),*), Self::R) {
[INFO] [stdout]     |                                ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] ...
[INFO] [stdout] 232 | m_join!();
[INFO] [stdout]     | ---------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::iter::IntoIterator`
[INFO] [stdout]  --> src/m_iter.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::iter::IntoIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/lib.rs:257:14
[INFO] [stdout]     |
[INFO] [stdout] 257 |     fn splat(T) -> Self;
[INFO] [stdout]     |              ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[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: unnecessary parentheses around type
[INFO] [stdout]    --> src/utils.rs:42:33
[INFO] [stdout]     |
[INFO] [stdout] 42  |     ( ; $($args:ident),* ) => ( ($($args),*) )
[INFO] [stdout]     |                                 ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/m_tuple.rs:231:1
[INFO] [stdout]     |
[INFO] [stdout] 231 | impl_tuple!(m_tuple);
[INFO] [stdout]     | --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `x_tuple_ident` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/utils.rs:42:33
[INFO] [stdout]     |
[INFO] [stdout] 42  |     ( ; $($args:ident),* ) => ( ($($args),*) )
[INFO] [stdout]     |                                 ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/m_tuple.rs:231:1
[INFO] [stdout]     |
[INFO] [stdout] 231 | impl_tuple!(m_tuple);
[INFO] [stdout]     | --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `x_tuple_ident` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/utils.rs:42:33
[INFO] [stdout]     |
[INFO] [stdout] 42  |     ( ; $($args:ident),* ) => ( ($($args),*) )
[INFO] [stdout]     |                                 ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/m_tuple.rs:231:1
[INFO] [stdout]     |
[INFO] [stdout] 231 | impl_tuple!(m_tuple);
[INFO] [stdout]     | --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `x_tuple_ident` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/m_tuple.rs:177:39
[INFO] [stdout]     |
[INFO] [stdout] 177 |         impl<$($l,)* $($r),*> OpSplit<($($l),*)> for ($($l,)* $($r),*) {
[INFO] [stdout]     |                                       ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] ...
[INFO] [stdout] 232 | m_join!();
[INFO] [stdout]     | ---------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/m_tuple.rs:178:22
[INFO] [stdout]     |
[INFO] [stdout] 178 |             type R = ($($r),*);
[INFO] [stdout]     |                      ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] ...
[INFO] [stdout] 232 | m_join!();
[INFO] [stdout]     | ---------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/m_tuple.rs:180:32
[INFO] [stdout]     |
[INFO] [stdout] 180 |             fn split(self) -> (($($l),*), Self::R) {
[INFO] [stdout]     |                                ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] ...
[INFO] [stdout] 232 | m_join!();
[INFO] [stdout]     | ---------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::iter::IntoIterator`
[INFO] [stdout]  --> src/m_iter.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::iter::IntoIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.62s
[INFO] running `Command { std: "docker" "inspect" "3d9675d7d363f41d547383244e60fafd7c6fb55096e7b6b937f88ad22f8ae042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d9675d7d363f41d547383244e60fafd7c6fb55096e7b6b937f88ad22f8ae042", kill_on_drop: false }`
[INFO] [stdout] 3d9675d7d363f41d547383244e60fafd7c6fb55096e7b6b937f88ad22f8ae042
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8c300ad66816382b25c90801d108555c3ec869b1594f1c811bdaf938152b1458
[INFO] running `Command { std: "docker" "start" "-a" "8c300ad66816382b25c90801d108555c3ec869b1594f1c811bdaf938152b1458", kill_on_drop: false }`
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]    --> src/lib.rs:257:14
[INFO] [stderr]     |
[INFO] [stderr] 257 |     fn splat(T) -> Self;
[INFO] [stderr]     |              ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[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 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/utils.rs:42:33
[INFO] [stderr]     |
[INFO] [stderr] 42  |     ( ; $($args:ident),* ) => ( ($($args),*) )
[INFO] [stderr]     |                                 ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/m_tuple.rs:231:1
[INFO] [stderr]     |
[INFO] [stderr] 231 | impl_tuple!(m_tuple);
[INFO] [stderr]     | --------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `x_tuple_ident` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/utils.rs:42:33
[INFO] [stderr]     |
[INFO] [stderr] 42  |     ( ; $($args:ident),* ) => ( ($($args),*) )
[INFO] [stderr]     |                                 ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/m_tuple.rs:231:1
[INFO] [stderr]     |
[INFO] [stderr] 231 | impl_tuple!(m_tuple);
[INFO] [stderr]     | --------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `x_tuple_ident` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/m_tuple.rs:177:39
[INFO] [stderr]     |
[INFO] [stderr] 177 |         impl<$($l,)* $($r),*> OpSplit<($($l),*)> for ($($l,)* $($r),*) {
[INFO] [stderr]     |                                       ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] ...
[INFO] [stderr] 232 | m_join!();
[INFO] [stderr]     | ---------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `impl_join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/m_tuple.rs:178:22
[INFO] [stderr]     |
[INFO] [stderr] 178 |             type R = ($($r),*);
[INFO] [stderr]     |                      ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] ...
[INFO] [stderr] 232 | m_join!();
[INFO] [stderr]     | ---------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `impl_join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/m_tuple.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |             fn split(self) -> (($($l),*), Self::R) {
[INFO] [stderr]     |                                ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] ...
[INFO] [stderr] 232 | m_join!();
[INFO] [stderr]     | ---------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `impl_join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::iter::IntoIterator`
[INFO] [stderr]  --> src/m_iter.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::iter::IntoIterator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tuple` (lib) generated 8 warnings (1 duplicate)
[INFO] [stderr] warning: `tuple` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tuple-60571c1940a80bd2)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tuple
[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] warning: unnecessary parentheses around type
[INFO] [stderr]    --> /opt/rustwide/workdir/src/utils.rs:42:33
[INFO] [stderr]     |
[INFO] [stderr] 42  |     ( ; $($args:ident),* ) => ( ($($args),*) )
[INFO] [stderr]     |                                 ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]    ::: /opt/rustwide/workdir/src/m_tuple.rs:231:1
[INFO] [stderr]     |
[INFO] [stderr] 231 | impl_tuple!(m_tuple);
[INFO] [stderr]     | --------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `x_tuple_ident` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> /opt/rustwide/workdir/src/utils.rs:42:33
[INFO] [stderr]     |
[INFO] [stderr] 42  |     ( ; $($args:ident),* ) => ( ($($args),*) )
[INFO] [stderr]     |                                 ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]    ::: /opt/rustwide/workdir/src/m_tuple.rs:231:1
[INFO] [stderr]     |
[INFO] [stderr] 231 | impl_tuple!(m_tuple);
[INFO] [stderr]     | --------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `x_tuple_ident` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> /opt/rustwide/workdir/src/utils.rs:42:33
[INFO] [stderr]     |
[INFO] [stderr] 42  |     ( ; $($args:ident),* ) => ( ($($args),*) )
[INFO] [stderr]     |                                 ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]    ::: /opt/rustwide/workdir/src/m_tuple.rs:231:1
[INFO] [stderr]     |
[INFO] [stderr] 231 | impl_tuple!(m_tuple);
[INFO] [stderr]     | --------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `x_tuple_ident` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> /opt/rustwide/workdir/src/m_tuple.rs:177:39
[INFO] [stderr]     |
[INFO] [stderr] 177 |         impl<$($l,)* $($r),*> OpSplit<($($l),*)> for ($($l,)* $($r),*) {
[INFO] [stderr]     |                                       ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] ...
[INFO] [stderr] 232 | m_join!();
[INFO] [stderr]     | ---------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `impl_join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> /opt/rustwide/workdir/src/m_tuple.rs:178:22
[INFO] [stderr]     |
[INFO] [stderr] 178 |             type R = ($($r),*);
[INFO] [stderr]     |                      ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] ...
[INFO] [stderr] 232 | m_join!();
[INFO] [stderr]     | ---------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `impl_join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> /opt/rustwide/workdir/src/m_tuple.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |             fn split(self) -> (($($l),*), Self::R) {
[INFO] [stderr]     |                                ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] ...
[INFO] [stderr] 232 | m_join!();
[INFO] [stderr]     | ---------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `impl_join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] test src/lib.rs - (line 98) ... ok
[INFO] [stdout] test src/lib.rs - (line 109) ... ok
[INFO] [stdout] test src/lib.rs - Splat (line 247) ... ok
[INFO] [stdout] test src/lib.rs - (line 81) ... ok
[INFO] [stdout] test src/lib.rs - Call (line 261) ... ok
[INFO] [stdout] test src/lib.rs - tuple (line 441) ... ok
[INFO] [stdout] test src/lib.rs - (line 135) ... ok
[INFO] [stdout] test src/lib.rs - (line 18) ... ok
[INFO] [stdout] test src/lib.rs - (line 122) ... ok
[INFO] [stdout] test src/lib.rs - (line 68) ... ok
[INFO] [stdout] test src/lib.rs - (line 39) ... ok
[INFO] [stdout] test src/lib.rs - (line 51) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.53s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8c300ad66816382b25c90801d108555c3ec869b1594f1c811bdaf938152b1458", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c300ad66816382b25c90801d108555c3ec869b1594f1c811bdaf938152b1458", kill_on_drop: false }`
[INFO] [stdout] 8c300ad66816382b25c90801d108555c3ec869b1594f1c811bdaf938152b1458