[INFO] fetching crate macro_rules_attribute-proc_macro 0.2.0...
[INFO] checking macro_rules_attribute-proc_macro-0.2.0 against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393-1
[INFO] extracting crate macro_rules_attribute-proc_macro 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate macro_rules_attribute-proc_macro 0.2.0 on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate macro_rules_attribute-proc_macro 0.2.0
[INFO] finished tweaking crates.io crate macro_rules_attribute-proc_macro 0.2.0
[INFO] tweaked toml for crates.io crate macro_rules_attribute-proc_macro 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64ba87969554fc915f4709bd714f128a8a087b0ceda4b945abb6fbf1ec5ab3b3
[INFO] running `Command { std: "docker" "start" "-a" "64ba87969554fc915f4709bd714f128a8a087b0ceda4b945abb6fbf1ec5ab3b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64ba87969554fc915f4709bd714f128a8a087b0ceda4b945abb6fbf1ec5ab3b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64ba87969554fc915f4709bd714f128a8a087b0ceda4b945abb6fbf1ec5ab3b3", kill_on_drop: false }`
[INFO] [stdout] 64ba87969554fc915f4709bd714f128a8a087b0ceda4b945abb6fbf1ec5ab3b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed0ff53d9793fe30a750f3cf8262083b50d6e7e92e18da0a931718fe8bb49ee1
[INFO] running `Command { std: "docker" "start" "-a" "ed0ff53d9793fe30a750f3cf8262083b50d6e7e92e18da0a931718fe8bb49ee1", kill_on_drop: false }`
[INFO] [stderr]     Checking macro_rules_attribute-proc_macro v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> mod.rs:223:17
[INFO] [stdout]     |
[INFO] [stdout] 223 |                 drop(tts.next());
[INFO] [stdout]     |                 ^^^^^----------^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `Option<&proc_macro::TokenTree>`
[INFO] [stdout] ...
[INFO] [stdout] 251 |     parse_optional_semicolons!();
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `parse_optional_semicolons` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> mod.rs:223:17
[INFO] [stdout]     |
[INFO] [stdout] 223 |                 drop(tts.next());
[INFO] [stdout]     |                 ^^^^^----------^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `Option<&proc_macro::TokenTree>`
[INFO] [stdout] ...
[INFO] [stdout] 251 |     parse_optional_semicolons!();
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `parse_optional_semicolons` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> mod.rs:244:13
[INFO] [stdout]     |
[INFO] [stdout] 244 |             drop(tts.next());
[INFO] [stdout]     |             ^^^^^----------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `Option<&proc_macro::TokenTree>`
[INFO] [stdout] ...
[INFO] [stdout] 260 |         parse_trailing_comma!();
[INFO] [stdout]     |         ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: this warning originates in the macro `parse_trailing_comma` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> mod.rs:244:13
[INFO] [stdout]     |
[INFO] [stdout] 244 |             drop(tts.next());
[INFO] [stdout]     |             ^^^^^----------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `Option<&proc_macro::TokenTree>`
[INFO] [stdout] ...
[INFO] [stdout] 260 |         parse_trailing_comma!();
[INFO] [stdout]     |         ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: this warning originates in the macro `parse_trailing_comma` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> mod.rs:266:13
[INFO] [stdout]     |
[INFO] [stdout] 266 |             drop(tts.next());
[INFO] [stdout]     |             ^^^^^----------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `Option<&proc_macro::TokenTree>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> mod.rs:266:13
[INFO] [stdout]     |
[INFO] [stdout] 266 |             drop(tts.next());
[INFO] [stdout]     |             ^^^^^----------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `Option<&proc_macro::TokenTree>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> mod.rs:244:13
[INFO] [stdout]     |
[INFO] [stdout] 244 |             drop(tts.next());
[INFO] [stdout]     |             ^^^^^----------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `Option<&proc_macro::TokenTree>`
[INFO] [stdout] ...
[INFO] [stdout] 268 |             parse_trailing_comma!();
[INFO] [stdout]     |             ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: this warning originates in the macro `parse_trailing_comma` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> mod.rs:244:13
[INFO] [stdout]     |
[INFO] [stdout] 244 |             drop(tts.next());
[INFO] [stdout]     |             ^^^^^----------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `Option<&proc_macro::TokenTree>`
[INFO] [stdout] ...
[INFO] [stdout] 268 |             parse_trailing_comma!();
[INFO] [stdout]     |             ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: this warning originates in the macro `parse_trailing_comma` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> mod.rs:223:17
[INFO] [stdout]     |
[INFO] [stdout] 223 |                 drop(tts.next());
[INFO] [stdout]     |                 ^^^^^----------^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `Option<&proc_macro::TokenTree>`
[INFO] [stdout] ...
[INFO] [stdout] 276 |         if parse_optional_semicolons!().is_none() {
[INFO] [stdout]     |            ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: this warning originates in the macro `parse_optional_semicolons` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> mod.rs:223:17
[INFO] [stdout]     |
[INFO] [stdout] 223 |                 drop(tts.next());
[INFO] [stdout]     |                 ^^^^^----------^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `Option<&proc_macro::TokenTree>`
[INFO] [stdout] ...
[INFO] [stdout] 276 |         if parse_optional_semicolons!().is_none() {
[INFO] [stdout]     |            ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: this warning originates in the macro `parse_optional_semicolons` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "ed0ff53d9793fe30a750f3cf8262083b50d6e7e92e18da0a931718fe8bb49ee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed0ff53d9793fe30a750f3cf8262083b50d6e7e92e18da0a931718fe8bb49ee1", kill_on_drop: false }`
[INFO] [stdout] ed0ff53d9793fe30a750f3cf8262083b50d6e7e92e18da0a931718fe8bb49ee1
[INFO] checking macro_rules_attribute-proc_macro-0.2.0 against try#7622c0f807a4e13c4db886a1681bf343795692df+rustflags=-Dnon_local_definitions for pr-120393-1
[INFO] extracting crate macro_rules_attribute-proc_macro 0.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate macro_rules_attribute-proc_macro 0.2.0 on toolchain 7622c0f807a4e13c4db886a1681bf343795692df
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate macro_rules_attribute-proc_macro 0.2.0
[INFO] finished tweaking crates.io crate macro_rules_attribute-proc_macro 0.2.0
[INFO] tweaked toml for crates.io crate macro_rules_attribute-proc_macro 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e68811437f2b0d1219cd99a7651ce94ce3004497780d4b33c9e886f809bc1b5
[INFO] running `Command { std: "docker" "start" "-a" "5e68811437f2b0d1219cd99a7651ce94ce3004497780d4b33c9e886f809bc1b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e68811437f2b0d1219cd99a7651ce94ce3004497780d4b33c9e886f809bc1b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e68811437f2b0d1219cd99a7651ce94ce3004497780d4b33c9e886f809bc1b5", kill_on_drop: false }`
[INFO] [stdout] 5e68811437f2b0d1219cd99a7651ce94ce3004497780d4b33c9e886f809bc1b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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 -Dnon_local_definitions" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 262ee494a02607388f2ee546ab6a74efccaafedc71114d81738cef031e7e81d9
[INFO] running `Command { std: "docker" "start" "-a" "262ee494a02607388f2ee546ab6a74efccaafedc71114d81738cef031e7e81d9", kill_on_drop: false }`
[INFO] [stderr]     Checking macro_rules_attribute-proc_macro v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> mod.rs:223:17
[INFO] [stdout]     |
[INFO] [stdout] 223 |                 drop(tts.next());
[INFO] [stdout]     |                 ^^^^^----------^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `Option<&proc_macro::TokenTree>`
[INFO] [stdout] ...
[INFO] [stdout] 251 |     parse_optional_semicolons!();
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `parse_optional_semicolons` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> mod.rs:244:13
[INFO] [stdout]     |
[INFO] [stdout] 244 |             drop(tts.next());
[INFO] [stdout]     |             ^^^^^----------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `Option<&proc_macro::TokenTree>`
[INFO] [stdout] ...
[INFO] [stdout] 260 |         parse_trailing_comma!();
[INFO] [stdout]     |         ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: this warning originates in the macro `parse_trailing_comma` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> mod.rs:266:13
[INFO] [stdout]     |
[INFO] [stdout] 266 |             drop(tts.next());
[INFO] [stdout]     |             ^^^^^----------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `Option<&proc_macro::TokenTree>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> mod.rs:244:13
[INFO] [stdout]     |
[INFO] [stdout] 244 |             drop(tts.next());
[INFO] [stdout]     |             ^^^^^----------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `Option<&proc_macro::TokenTree>`
[INFO] [stdout] ...
[INFO] [stdout] 268 |             parse_trailing_comma!();
[INFO] [stdout]     |             ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: this warning originates in the macro `parse_trailing_comma` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> mod.rs:223:17
[INFO] [stdout]     |
[INFO] [stdout] 223 |                 drop(tts.next());
[INFO] [stdout]     |                 ^^^^^----------^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `Option<&proc_macro::TokenTree>`
[INFO] [stdout] ...
[INFO] [stdout] 276 |         if parse_optional_semicolons!().is_none() {
[INFO] [stdout]     |            ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: this warning originates in the macro `parse_optional_semicolons` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]    --> mod.rs:300:9
[INFO] [stdout]     |
[INFO] [stdout] 300 |         impl<T : IntoIterator> CollectVec for T {}
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: move this `impl` block outside the of the current method `vec`
[INFO] [stdout]     = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]     = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]     = note: requested on the command line with `-D non-local-definitions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> mod.rs:223:17
[INFO] [stdout]     |
[INFO] [stdout] 223 |                 drop(tts.next());
[INFO] [stdout]     |                 ^^^^^----------^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `Option<&proc_macro::TokenTree>`
[INFO] [stdout] ...
[INFO] [stdout] 251 |     parse_optional_semicolons!();
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `parse_optional_semicolons` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> mod.rs:244:13
[INFO] [stdout]     |
[INFO] [stdout] 244 |             drop(tts.next());
[INFO] [stdout]     |             ^^^^^----------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `Option<&proc_macro::TokenTree>`
[INFO] [stdout] ...
[INFO] [stdout] 260 |         parse_trailing_comma!();
[INFO] [stdout]     |         ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: this warning originates in the macro `parse_trailing_comma` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> mod.rs:266:13
[INFO] [stdout]     |
[INFO] [stdout] 266 |             drop(tts.next());
[INFO] [stdout]     |             ^^^^^----------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `Option<&proc_macro::TokenTree>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> mod.rs:244:13
[INFO] [stdout]     |
[INFO] [stdout] 244 |             drop(tts.next());
[INFO] [stdout]     |             ^^^^^----------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `Option<&proc_macro::TokenTree>`
[INFO] [stdout] ...
[INFO] [stdout] 268 |             parse_trailing_comma!();
[INFO] [stdout]     |             ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: this warning originates in the macro `parse_trailing_comma` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> mod.rs:223:17
[INFO] [stdout]     |
[INFO] [stdout] 223 |                 drop(tts.next());
[INFO] [stdout]     |                 ^^^^^----------^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `Option<&proc_macro::TokenTree>`
[INFO] [stdout] ...
[INFO] [stdout] 276 |         if parse_optional_semicolons!().is_none() {
[INFO] [stdout]     |            ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: this warning originates in the macro `parse_optional_semicolons` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation
[INFO] [stdout]    --> mod.rs:300:9
[INFO] [stdout]     |
[INFO] [stdout] 300 |         impl<T : IntoIterator> CollectVec for T {}
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: move this `impl` block outside the of the current method `vec`
[INFO] [stdout]     = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block
[INFO] [stdout]     = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
[INFO] [stdout]     = note: requested on the command line with `-D non-local-definitions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `macro_rules_attribute-proc_macro` (lib) due to 2 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 1 previous error; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `macro_rules_attribute-proc_macro` (lib test) due to 2 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "262ee494a02607388f2ee546ab6a74efccaafedc71114d81738cef031e7e81d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "262ee494a02607388f2ee546ab6a74efccaafedc71114d81738cef031e7e81d9", kill_on_drop: false }`
[INFO] [stdout] 262ee494a02607388f2ee546ab6a74efccaafedc71114d81738cef031e7e81d9
