[INFO] fetching crate proc-macro-rules 0.2.1...
[INFO] testing proc-macro-rules-0.2.1 against 1.44.0 for beta-1.45-1
[INFO] extracting crate proc-macro-rules 0.2.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate proc-macro-rules 0.2.1 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate proc-macro-rules 0.2.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate proc-macro-rules 0.2.1
[INFO] tweaked toml for crates.io crate proc-macro-rules 0.2.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 52964dec5e38353d828c8320bca252dbd26a91cc2ee2b833bebcaf2b934d190b
[INFO] running `"docker" "start" "-a" "52964dec5e38353d828c8320bca252dbd26a91cc2ee2b833bebcaf2b934d190b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro-rules-macros v0.2.0
[INFO] [stderr]    Compiling proc-macro-rules v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.37s
[INFO] running `"docker" "inspect" "52964dec5e38353d828c8320bca252dbd26a91cc2ee2b833bebcaf2b934d190b"`
[INFO] running `"docker" "rm" "-f" "52964dec5e38353d828c8320bca252dbd26a91cc2ee2b833bebcaf2b934d190b"`
[INFO] [stdout] 52964dec5e38353d828c8320bca252dbd26a91cc2ee2b833bebcaf2b934d190b
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3f141ccc3210aef832686b684dac4c42d5968437443350e268bfdac7b8741171
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "3f141ccc3210aef832686b684dac4c42d5968437443350e268bfdac7b8741171"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro-rules v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/lib.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78 | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]    | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] ...
[INFO] [stderr] 90 | /         rules!(tokens => {
[INFO] [stderr] 91 | |             ($finish:ident ($($found:ident)+) # [ $($inner:tt)? ] $($rest:expr)*) => {
[INFO] [stderr] 92 | |                 assert_eq!(finish.to_string(), "hi");
[INFO] [stderr] 93 | |                 assert_eq!(found.len(), 3);
[INFO] [stderr] ...  |
[INFO] [stderr] 97 | |             }
[INFO] [stderr] 98 | |         });
[INFO] [stderr]    | |___________- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/lib.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78 | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]    | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] ...
[INFO] [stderr] 90 | /         rules!(tokens => {
[INFO] [stderr] 91 | |             ($finish:ident ($($found:ident)+) # [ $($inner:tt)? ] $($rest:expr)*) => {
[INFO] [stderr] 92 | |                 assert_eq!(finish.to_string(), "hi");
[INFO] [stderr] 93 | |                 assert_eq!(found.len(), 3);
[INFO] [stderr] ...  |
[INFO] [stderr] 97 | |             }
[INFO] [stderr] 98 | |         });
[INFO] [stderr]    | |___________- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] ...
[INFO] [stderr] 105 | /         rules!(tokens => {
[INFO] [stderr] 106 | |             () => {
[INFO] [stderr] 107 | |                 return;
[INFO] [stderr] 108 | |             }
[INFO] [stderr] 109 | |         });
[INFO] [stderr]     | |___________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] ...
[INFO] [stderr] 105 | /         rules!(tokens => {
[INFO] [stderr] 106 | |             () => {
[INFO] [stderr] 107 | |                 return;
[INFO] [stderr] 108 | |             }
[INFO] [stderr] 109 | |         });
[INFO] [stderr]     | |___________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] ...
[INFO] [stderr] 117 | /         rules!(tokens => {
[INFO] [stderr] 118 | |             (bar) => {}
[INFO] [stderr] 119 | |         });
[INFO] [stderr]     | |___________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] ...
[INFO] [stderr] 125 | /             rules!(tokens => {
[INFO] [stderr] 126 | |                 (foo) => {
[INFO] [stderr] 127 | |                     if expected_branch == 0 {
[INFO] [stderr] 128 | |                         return;
[INFO] [stderr] ...   |
[INFO] [stderr] 152 | |                 }
[INFO] [stderr] 153 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] ...
[INFO] [stderr] 125 | /             rules!(tokens => {
[INFO] [stderr] 126 | |                 (foo) => {
[INFO] [stderr] 127 | |                     if expected_branch == 0 {
[INFO] [stderr] 128 | |                         return;
[INFO] [stderr] ...   |
[INFO] [stderr] 152 | |                 }
[INFO] [stderr] 153 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] ...
[INFO] [stderr] 165 | /             rules!(tokens => {
[INFO] [stderr] 166 | |                 (foo $(bar),? baz) => {
[INFO] [stderr] 167 | |                     return;
[INFO] [stderr] 168 | |                 }
[INFO] [stderr] 169 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] ...
[INFO] [stderr] 165 | /             rules!(tokens => {
[INFO] [stderr] 166 | |                 (foo $(bar),? baz) => {
[INFO] [stderr] 167 | |                     return;
[INFO] [stderr] 168 | |                 }
[INFO] [stderr] 169 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] ...
[INFO] [stderr] 181 | /             rules!(tokens => {
[INFO] [stderr] 182 | |                 (foo $(bar),+ baz) => {
[INFO] [stderr] 183 | |                     return;
[INFO] [stderr] 184 | |                 }
[INFO] [stderr] 185 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] ...
[INFO] [stderr] 181 | /             rules!(tokens => {
[INFO] [stderr] 182 | |                 (foo $(bar),+ baz) => {
[INFO] [stderr] 183 | |                     return;
[INFO] [stderr] 184 | |                 }
[INFO] [stderr] 185 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] ...
[INFO] [stderr] 200 | /             rules!(tokens => {
[INFO] [stderr] 201 | |                 (foo $(bar),* baz) => {
[INFO] [stderr] 202 | |                     return;
[INFO] [stderr] 203 | |                 }
[INFO] [stderr] 204 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] ...
[INFO] [stderr] 200 | /             rules!(tokens => {
[INFO] [stderr] 201 | |                 (foo $(bar),* baz) => {
[INFO] [stderr] 202 | |                     return;
[INFO] [stderr] 203 | |                 }
[INFO] [stderr] 204 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outer`
[INFO] [stderr]   --> src/lib.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78 | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]    | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stderr] ...
[INFO] [stderr] 90 | /         rules!(tokens => {
[INFO] [stderr] 91 | |             ($finish:ident ($($found:ident)+) # [ $($inner:tt)? ] $($rest:expr)*) => {
[INFO] [stderr] 92 | |                 assert_eq!(finish.to_string(), "hi");
[INFO] [stderr] 93 | |                 assert_eq!(found.len(), 3);
[INFO] [stderr] ...  |
[INFO] [stderr] 97 | |             }
[INFO] [stderr] 98 | |         });
[INFO] [stderr]    | |___________- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outer`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stderr] ...
[INFO] [stderr] 105 | /         rules!(tokens => {
[INFO] [stderr] 106 | |             () => {
[INFO] [stderr] 107 | |                 return;
[INFO] [stderr] 108 | |             }
[INFO] [stderr] 109 | |         });
[INFO] [stderr]     | |___________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outer`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stderr] ...
[INFO] [stderr] 117 | /         rules!(tokens => {
[INFO] [stderr] 118 | |             (bar) => {}
[INFO] [stderr] 119 | |         });
[INFO] [stderr]     | |___________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outer`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stderr] ...
[INFO] [stderr] 125 | /             rules!(tokens => {
[INFO] [stderr] 126 | |                 (foo) => {
[INFO] [stderr] 127 | |                     if expected_branch == 0 {
[INFO] [stderr] 128 | |                         return;
[INFO] [stderr] ...   |
[INFO] [stderr] 152 | |                 }
[INFO] [stderr] 153 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outer`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stderr] ...
[INFO] [stderr] 165 | /             rules!(tokens => {
[INFO] [stderr] 166 | |                 (foo $(bar),? baz) => {
[INFO] [stderr] 167 | |                     return;
[INFO] [stderr] 168 | |                 }
[INFO] [stderr] 169 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outer`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stderr] ...
[INFO] [stderr] 181 | /             rules!(tokens => {
[INFO] [stderr] 182 | |                 (foo $(bar),+ baz) => {
[INFO] [stderr] 183 | |                     return;
[INFO] [stderr] 184 | |                 }
[INFO] [stderr] 185 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outer`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stderr] ...
[INFO] [stderr] 200 | /             rules!(tokens => {
[INFO] [stderr] 201 | |                 (foo $(bar),* baz) => {
[INFO] [stderr] 202 | |                     return;
[INFO] [stderr] 203 | |                 }
[INFO] [stderr] 204 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 |    #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr]    |   _^
[INFO] [stderr]    |  |_|
[INFO] [stderr]    | ||
[INFO] [stderr] 78 | || pub use proc_macro_rules_macros::rules;
[INFO] [stderr]    | ||_|____________________________________^
[INFO] [stderr]    |  |_|
[INFO] [stderr]    |    help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 90 | /          rules!(tokens => {
[INFO] [stderr] 91 | |              ($finish:ident ($($found:ident)+) # [ $($inner:tt)? ] $($rest:expr)*) => {
[INFO] [stderr] 92 | |                  assert_eq!(finish.to_string(), "hi");
[INFO] [stderr] 93 | |                  assert_eq!(found.len(), 3);
[INFO] [stderr] ...  |
[INFO] [stderr] 97 | |              }
[INFO] [stderr] 98 | |          });
[INFO] [stderr]    | |____________- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 |    #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr]    |   _^
[INFO] [stderr]    |  |_|
[INFO] [stderr]    | ||
[INFO] [stderr] 78 | || pub use proc_macro_rules_macros::rules;
[INFO] [stderr]    | ||_|____________________________________^
[INFO] [stderr]    |  |_|
[INFO] [stderr]    |    help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 90 | /          rules!(tokens => {
[INFO] [stderr] 91 | |              ($finish:ident ($($found:ident)+) # [ $($inner:tt)? ] $($rest:expr)*) => {
[INFO] [stderr] 92 | |                  assert_eq!(finish.to_string(), "hi");
[INFO] [stderr] 93 | |                  assert_eq!(found.len(), 3);
[INFO] [stderr] ...  |
[INFO] [stderr] 97 | |              }
[INFO] [stderr] 98 | |          });
[INFO] [stderr]    | |____________- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  |    #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr]     |   _^
[INFO] [stderr]     |  |_|
[INFO] [stderr]     | ||
[INFO] [stderr] 78  | || pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | ||_|____________________________________^
[INFO] [stderr]     |  |_|
[INFO] [stderr]     |    help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 105 | /          rules!(tokens => {
[INFO] [stderr] 106 | |              () => {
[INFO] [stderr] 107 | |                  return;
[INFO] [stderr] 108 | |              }
[INFO] [stderr] 109 | |          });
[INFO] [stderr]     | |____________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  |    #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr]     |   _^
[INFO] [stderr]     |  |_|
[INFO] [stderr]     | ||
[INFO] [stderr] 78  | || pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | ||_|____________________________________^
[INFO] [stderr]     |  |_|
[INFO] [stderr]     |    help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 125 | /              rules!(tokens => {
[INFO] [stderr] 126 | |                  (foo) => {
[INFO] [stderr] 127 | |                      if expected_branch == 0 {
[INFO] [stderr] 128 | |                          return;
[INFO] [stderr] ...   |
[INFO] [stderr] 152 | |                  }
[INFO] [stderr] 153 | |              });
[INFO] [stderr]     | |________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 24 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.42s
[INFO] running `"docker" "inspect" "3f141ccc3210aef832686b684dac4c42d5968437443350e268bfdac7b8741171"`
[INFO] running `"docker" "rm" "-f" "3f141ccc3210aef832686b684dac4c42d5968437443350e268bfdac7b8741171"`
[INFO] [stdout] 3f141ccc3210aef832686b684dac4c42d5968437443350e268bfdac7b8741171
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 20fbfb6b0eff072893c791a29aaca34876399e72c8f791b806b959fea85a2d5a
[INFO] running `"docker" "start" "-a" "20fbfb6b0eff072893c791a29aaca34876399e72c8f791b806b959fea85a2d5a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/lib.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78 | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]    | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] ...
[INFO] [stderr] 90 | /         rules!(tokens => {
[INFO] [stderr] 91 | |             ($finish:ident ($($found:ident)+) # [ $($inner:tt)? ] $($rest:expr)*) => {
[INFO] [stderr] 92 | |                 assert_eq!(finish.to_string(), "hi");
[INFO] [stderr] 93 | |                 assert_eq!(found.len(), 3);
[INFO] [stderr] ...  |
[INFO] [stderr] 97 | |             }
[INFO] [stderr] 98 | |         });
[INFO] [stderr]    | |___________- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/lib.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78 | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]    | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] ...
[INFO] [stderr] 90 | /         rules!(tokens => {
[INFO] [stderr] 91 | |             ($finish:ident ($($found:ident)+) # [ $($inner:tt)? ] $($rest:expr)*) => {
[INFO] [stderr] 92 | |                 assert_eq!(finish.to_string(), "hi");
[INFO] [stderr] 93 | |                 assert_eq!(found.len(), 3);
[INFO] [stderr] ...  |
[INFO] [stderr] 97 | |             }
[INFO] [stderr] 98 | |         });
[INFO] [stderr]    | |___________- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] ...
[INFO] [stderr] 105 | /         rules!(tokens => {
[INFO] [stderr] 106 | |             () => {
[INFO] [stderr] 107 | |                 return;
[INFO] [stderr] 108 | |             }
[INFO] [stderr] 109 | |         });
[INFO] [stderr]     | |___________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] ...
[INFO] [stderr] 105 | /         rules!(tokens => {
[INFO] [stderr] 106 | |             () => {
[INFO] [stderr] 107 | |                 return;
[INFO] [stderr] 108 | |             }
[INFO] [stderr] 109 | |         });
[INFO] [stderr]     | |___________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] ...
[INFO] [stderr] 117 | /         rules!(tokens => {
[INFO] [stderr] 118 | |             (bar) => {}
[INFO] [stderr] 119 | |         });
[INFO] [stderr]     | |___________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] ...
[INFO] [stderr] 125 | /             rules!(tokens => {
[INFO] [stderr] 126 | |                 (foo) => {
[INFO] [stderr] 127 | |                     if expected_branch == 0 {
[INFO] [stderr] 128 | |                         return;
[INFO] [stderr] ...   |
[INFO] [stderr] 152 | |                 }
[INFO] [stderr] 153 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] ...
[INFO] [stderr] 125 | /             rules!(tokens => {
[INFO] [stderr] 126 | |                 (foo) => {
[INFO] [stderr] 127 | |                     if expected_branch == 0 {
[INFO] [stderr] 128 | |                         return;
[INFO] [stderr] ...   |
[INFO] [stderr] 152 | |                 }
[INFO] [stderr] 153 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] ...
[INFO] [stderr] 165 | /             rules!(tokens => {
[INFO] [stderr] 166 | |                 (foo $(bar),? baz) => {
[INFO] [stderr] 167 | |                     return;
[INFO] [stderr] 168 | |                 }
[INFO] [stderr] 169 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] ...
[INFO] [stderr] 165 | /             rules!(tokens => {
[INFO] [stderr] 166 | |                 (foo $(bar),? baz) => {
[INFO] [stderr] 167 | |                     return;
[INFO] [stderr] 168 | |                 }
[INFO] [stderr] 169 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] ...
[INFO] [stderr] 181 | /             rules!(tokens => {
[INFO] [stderr] 182 | |                 (foo $(bar),+ baz) => {
[INFO] [stderr] 183 | |                     return;
[INFO] [stderr] 184 | |                 }
[INFO] [stderr] 185 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] ...
[INFO] [stderr] 181 | /             rules!(tokens => {
[INFO] [stderr] 182 | |                 (foo $(bar),+ baz) => {
[INFO] [stderr] 183 | |                     return;
[INFO] [stderr] 184 | |                 }
[INFO] [stderr] 185 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] ...
[INFO] [stderr] 200 | /             rules!(tokens => {
[INFO] [stderr] 201 | |                 (foo $(bar),* baz) => {
[INFO] [stderr] 202 | |                     return;
[INFO] [stderr] 203 | |                 }
[INFO] [stderr] 204 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] ...
[INFO] [stderr] 200 | /             rules!(tokens => {
[INFO] [stderr] 201 | |                 (foo $(bar),* baz) => {
[INFO] [stderr] 202 | |                     return;
[INFO] [stderr] 203 | |                 }
[INFO] [stderr] 204 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outer`
[INFO] [stderr]   --> src/lib.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78 | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]    | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stderr] ...
[INFO] [stderr] 90 | /         rules!(tokens => {
[INFO] [stderr] 91 | |             ($finish:ident ($($found:ident)+) # [ $($inner:tt)? ] $($rest:expr)*) => {
[INFO] [stderr] 92 | |                 assert_eq!(finish.to_string(), "hi");
[INFO] [stderr] 93 | |                 assert_eq!(found.len(), 3);
[INFO] [stderr] ...  |
[INFO] [stderr] 97 | |             }
[INFO] [stderr] 98 | |         });
[INFO] [stderr]    | |___________- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outer`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stderr] ...
[INFO] [stderr] 105 | /         rules!(tokens => {
[INFO] [stderr] 106 | |             () => {
[INFO] [stderr] 107 | |                 return;
[INFO] [stderr] 108 | |             }
[INFO] [stderr] 109 | |         });
[INFO] [stderr]     | |___________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outer`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stderr] ...
[INFO] [stderr] 117 | /         rules!(tokens => {
[INFO] [stderr] 118 | |             (bar) => {}
[INFO] [stderr] 119 | |         });
[INFO] [stderr]     | |___________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outer`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stderr] ...
[INFO] [stderr] 125 | /             rules!(tokens => {
[INFO] [stderr] 126 | |                 (foo) => {
[INFO] [stderr] 127 | |                     if expected_branch == 0 {
[INFO] [stderr] 128 | |                         return;
[INFO] [stderr] ...   |
[INFO] [stderr] 152 | |                 }
[INFO] [stderr] 153 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outer`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stderr] ...
[INFO] [stderr] 165 | /             rules!(tokens => {
[INFO] [stderr] 166 | |                 (foo $(bar),? baz) => {
[INFO] [stderr] 167 | |                     return;
[INFO] [stderr] 168 | |                 }
[INFO] [stderr] 169 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outer`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stderr] ...
[INFO] [stderr] 181 | /             rules!(tokens => {
[INFO] [stderr] 182 | |                 (foo $(bar),+ baz) => {
[INFO] [stderr] 183 | |                     return;
[INFO] [stderr] 184 | |                 }
[INFO] [stderr] 185 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outer`
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stderr] ...
[INFO] [stderr] 200 | /             rules!(tokens => {
[INFO] [stderr] 201 | |                 (foo $(bar),* baz) => {
[INFO] [stderr] 202 | |                     return;
[INFO] [stderr] 203 | |                 }
[INFO] [stderr] 204 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 |    #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr]    |   _^
[INFO] [stderr]    |  |_|
[INFO] [stderr]    | ||
[INFO] [stderr] 78 | || pub use proc_macro_rules_macros::rules;
[INFO] [stderr]    | ||_|____________________________________^
[INFO] [stderr]    |  |_|
[INFO] [stderr]    |    help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 90 | /          rules!(tokens => {
[INFO] [stderr] 91 | |              ($finish:ident ($($found:ident)+) # [ $($inner:tt)? ] $($rest:expr)*) => {
[INFO] [stderr] 92 | |                  assert_eq!(finish.to_string(), "hi");
[INFO] [stderr] 93 | |                  assert_eq!(found.len(), 3);
[INFO] [stderr] ...  |
[INFO] [stderr] 97 | |              }
[INFO] [stderr] 98 | |          });
[INFO] [stderr]    | |____________- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 |    #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr]    |   _^
[INFO] [stderr]    |  |_|
[INFO] [stderr]    | ||
[INFO] [stderr] 78 | || pub use proc_macro_rules_macros::rules;
[INFO] [stderr]    | ||_|____________________________________^
[INFO] [stderr]    |  |_|
[INFO] [stderr]    |    help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 90 | /          rules!(tokens => {
[INFO] [stderr] 91 | |              ($finish:ident ($($found:ident)+) # [ $($inner:tt)? ] $($rest:expr)*) => {
[INFO] [stderr] 92 | |                  assert_eq!(finish.to_string(), "hi");
[INFO] [stderr] 93 | |                  assert_eq!(found.len(), 3);
[INFO] [stderr] ...  |
[INFO] [stderr] 97 | |              }
[INFO] [stderr] 98 | |          });
[INFO] [stderr]    | |____________- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  |    #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr]     |   _^
[INFO] [stderr]     |  |_|
[INFO] [stderr]     | ||
[INFO] [stderr] 78  | || pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | ||_|____________________________________^
[INFO] [stderr]     |  |_|
[INFO] [stderr]     |    help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 105 | /          rules!(tokens => {
[INFO] [stderr] 106 | |              () => {
[INFO] [stderr] 107 | |                  return;
[INFO] [stderr] 108 | |              }
[INFO] [stderr] 109 | |          });
[INFO] [stderr]     | |____________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  |    #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr]     |   _^
[INFO] [stderr]     |  |_|
[INFO] [stderr]     | ||
[INFO] [stderr] 78  | || pub use proc_macro_rules_macros::rules;
[INFO] [stderr]     | ||_|____________________________________^
[INFO] [stderr]     |  |_|
[INFO] [stderr]     |    help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 125 | /              rules!(tokens => {
[INFO] [stderr] 126 | |                  (foo) => {
[INFO] [stderr] 127 | |                      if expected_branch == 0 {
[INFO] [stderr] 128 | |                          return;
[INFO] [stderr] ...   |
[INFO] [stderr] 152 | |                  }
[INFO] [stderr] 153 | |              });
[INFO] [stderr]     | |________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 24 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/proc_macro_rules-f8684cacbb3d6b29
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::test_empty ... ok
[INFO] [stdout] test tests::test_branches ... ok
[INFO] [stdout] test tests::test_star ... ok
[INFO] [stdout] test tests::test_smoke ... ok
[INFO] [stdout] test tests::test_opt ... ok
[INFO] [stdout] test tests::test_plus ... ok
[INFO] [stdout] test tests::test_no_match ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests proc-macro-rules
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "20fbfb6b0eff072893c791a29aaca34876399e72c8f791b806b959fea85a2d5a"`
[INFO] running `"docker" "rm" "-f" "20fbfb6b0eff072893c791a29aaca34876399e72c8f791b806b959fea85a2d5a"`
[INFO] [stdout] 20fbfb6b0eff072893c791a29aaca34876399e72c8f791b806b959fea85a2d5a