[INFO] fetching crate tuple 0.4.2...
[INFO] checking tuple-0.4.2 against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166
[INFO] extracting crate tuple 0.4.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate tuple 0.4.2 on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tuple 0.4.2
[INFO] finished tweaking crates.io crate tuple 0.4.2
[INFO] tweaked toml for crates.io crate tuple 0.4.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51b690c5deab2e0b036108ac2ba3fb03eae5c1c9da069f1f4ebcaa2e0b1550c3
[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" "51b690c5deab2e0b036108ac2ba3fb03eae5c1c9da069f1f4ebcaa2e0b1550c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51b690c5deab2e0b036108ac2ba3fb03eae5c1c9da069f1f4ebcaa2e0b1550c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51b690c5deab2e0b036108ac2ba3fb03eae5c1c9da069f1f4ebcaa2e0b1550c3", kill_on_drop: false }`
[INFO] [stdout] 51b690c5deab2e0b036108ac2ba3fb03eae5c1c9da069f1f4ebcaa2e0b1550c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e476d202d79352ebba21ff27929ef5dd2d36622ff0c3c3f3c4d810efeeb503d
[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" "5e476d202d79352ebba21ff27929ef5dd2d36622ff0c3c3f3c4d810efeeb503d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking tuple v0.4.2 (/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: `#[warn(unused_parens)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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: `#[warn(unused_parens)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.99s
[INFO] running `Command { std: "docker" "inspect" "5e476d202d79352ebba21ff27929ef5dd2d36622ff0c3c3f3c4d810efeeb503d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e476d202d79352ebba21ff27929ef5dd2d36622ff0c3c3f3c4d810efeeb503d", kill_on_drop: false }`
[INFO] [stdout] 5e476d202d79352ebba21ff27929ef5dd2d36622ff0c3c3f3c4d810efeeb503d