[INFO] crate tuple_utils 0.3.0 is already in cache
[INFO] checking tuple_utils-0.3.0 against master#2da942f32802c8233a09744024dfbc34431adf65 for pr-66963
[INFO] extracting crate tuple_utils 0.3.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate tuple_utils 0.3.0 on toolchain 2da942f32802c8233a09744024dfbc34431adf65
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate tuple_utils 0.3.0
[INFO] finished tweaking crates.io crate tuple_utils 0.3.0
[INFO] tweaked toml for crates.io crate tuple_utils 0.3.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8c07804cba1ee9b133e9386557a4e46940b6911df4f9efb5c7da72066e9e0882
[INFO] running `"docker" "start" "-a" "8c07804cba1ee9b133e9386557a4e46940b6911df4f9efb5c7da72066e9e0882"`
[INFO] [stderr]     Checking tuple_utils v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/lib.rs:25:27
[INFO] [stderr]    |
[INFO] [stderr] 25 |               type Output = ( $( $from ,)*  T);
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] ...
[INFO] [stderr] 61 | / for_each_prefix!{
[INFO] [stderr] 62 | |     tuple_impl,
[INFO] [stderr] 63 | |     [],
[INFO] [stderr] 64 | |     [(T0), (T1), (T2), (T3), (T4), (T5), (T6), (T7), (T8), (T9), (T10), (T11), (T12), (T13), (T14), (T15),]
[INFO] [stderr] 65 | | }
[INFO] [stderr]    | |_- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/lib.rs:29:38
[INFO] [stderr]    |
[INFO] [stderr] 29 |               fn append(self, x: T) -> ( $( $from ,)*  T) {
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] ...
[INFO] [stderr] 61 | / for_each_prefix!{
[INFO] [stderr] 62 | |     tuple_impl,
[INFO] [stderr] 63 | |     [],
[INFO] [stderr] 64 | |     [(T0), (T1), (T2), (T3), (T4), (T5), (T6), (T7), (T8), (T9), (T10), (T11), (T12), (T13), (T14), (T15),]
[INFO] [stderr] 65 | | }
[INFO] [stderr]    | |_- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/lib.rs:25:27
[INFO] [stderr]    |
[INFO] [stderr] 25 |               type Output = ( $( $from ,)*  T);
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] ...
[INFO] [stderr] 61 | / for_each_prefix!{
[INFO] [stderr] 62 | |     tuple_impl,
[INFO] [stderr] 63 | |     [],
[INFO] [stderr] 64 | |     [(T0), (T1), (T2), (T3), (T4), (T5), (T6), (T7), (T8), (T9), (T10), (T11), (T12), (T13), (T14), (T15),]
[INFO] [stderr] 65 | | }
[INFO] [stderr]    | |_- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/lib.rs:29:38
[INFO] [stderr]    |
[INFO] [stderr] 29 |               fn append(self, x: T) -> ( $( $from ,)*  T) {
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] ...
[INFO] [stderr] 61 | / for_each_prefix!{
[INFO] [stderr] 62 | |     tuple_impl,
[INFO] [stderr] 63 | |     [],
[INFO] [stderr] 64 | |     [(T0), (T1), (T2), (T3), (T4), (T5), (T6), (T7), (T8), (T9), (T10), (T11), (T12), (T13), (T14), (T15),]
[INFO] [stderr] 65 | | }
[INFO] [stderr]    | |_- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `"docker" "inspect" "8c07804cba1ee9b133e9386557a4e46940b6911df4f9efb5c7da72066e9e0882"`
[INFO] running `"docker" "rm" "-f" "8c07804cba1ee9b133e9386557a4e46940b6911df4f9efb5c7da72066e9e0882"`
[INFO] [stdout] 8c07804cba1ee9b133e9386557a4e46940b6911df4f9efb5c7da72066e9e0882