[INFO] fetching crate tuple_utils 0.3.0...
[INFO] checking tuple_utils-0.3.0 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] extracting crate tuple_utils 0.3.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate tuple_utils 0.3.0 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "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" "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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a74c6924aa8366d449eee5246f850e8e5e7be2be97dfc936dda5047272305b8
[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" "4a74c6924aa8366d449eee5246f850e8e5e7be2be97dfc936dda5047272305b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a74c6924aa8366d449eee5246f850e8e5e7be2be97dfc936dda5047272305b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a74c6924aa8366d449eee5246f850e8e5e7be2be97dfc936dda5047272305b8", kill_on_drop: false }`
[INFO] [stdout] 4a74c6924aa8366d449eee5246f850e8e5e7be2be97dfc936dda5047272305b8
[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" "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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b42ca83f15d40091e36775d1289061f63f98f934ebfd12874cdc8fb4b50d38dd
[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" "b42ca83f15d40091e36775d1289061f63f98f934ebfd12874cdc8fb4b50d38dd", kill_on_drop: false }`
[INFO] [stderr]     Checking tuple_utils v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:25:27
[INFO] [stdout]    |
[INFO] [stdout] 25 |               type Output = ( $( $from ,)*  T);
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] ...
[INFO] [stdout] 61 | / for_each_prefix!{
[INFO] [stdout] 62 | |     tuple_impl,
[INFO] [stdout] 63 | |     [],
[INFO] [stdout] 64 | |     [(T0), (T1), (T2), (T3), (T4), (T5), (T6), (T7), (T8), (T9), (T10), (T11), (T12), (T13), (T14), (T15),]
[INFO] [stdout] 65 | | }
[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/lib.rs:29:38
[INFO] [stdout]    |
[INFO] [stdout] 29 |               fn append(self, x: T) -> ( $( $from ,)*  T) {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] ...
[INFO] [stdout] 61 | / for_each_prefix!{
[INFO] [stdout] 62 | |     tuple_impl,
[INFO] [stdout] 63 | |     [],
[INFO] [stdout] 64 | |     [(T0), (T1), (T2), (T3), (T4), (T5), (T6), (T7), (T8), (T9), (T10), (T11), (T12), (T13), (T14), (T15),]
[INFO] [stdout] 65 | | }
[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/lib.rs:25:27
[INFO] [stdout]    |
[INFO] [stdout] 25 |               type Output = ( $( $from ,)*  T);
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] ...
[INFO] [stdout] 61 | / for_each_prefix!{
[INFO] [stdout] 62 | |     tuple_impl,
[INFO] [stdout] 63 | |     [],
[INFO] [stdout] 64 | |     [(T0), (T1), (T2), (T3), (T4), (T5), (T6), (T7), (T8), (T9), (T10), (T11), (T12), (T13), (T14), (T15),]
[INFO] [stdout] 65 | | }
[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/lib.rs:29:38
[INFO] [stdout]    |
[INFO] [stdout] 29 |               fn append(self, x: T) -> ( $( $from ,)*  T) {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] ...
[INFO] [stdout] 61 | / for_each_prefix!{
[INFO] [stdout] 62 | |     tuple_impl,
[INFO] [stdout] 63 | |     [],
[INFO] [stdout] 64 | |     [(T0), (T1), (T2), (T3), (T4), (T5), (T6), (T7), (T8), (T9), (T10), (T11), (T12), (T13), (T14), (T15),]
[INFO] [stdout] 65 | | }
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "b42ca83f15d40091e36775d1289061f63f98f934ebfd12874cdc8fb4b50d38dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b42ca83f15d40091e36775d1289061f63f98f934ebfd12874cdc8fb4b50d38dd", kill_on_drop: false }`
[INFO] [stdout] b42ca83f15d40091e36775d1289061f63f98f934ebfd12874cdc8fb4b50d38dd