[INFO] fetching crate proc-macro-rules 0.2.1...
[INFO] testing proc-macro-rules-0.2.1 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate proc-macro-rules 0.2.1 into /workspace/builds/worker-16/source
[INFO] validating manifest of crates.io crate proc-macro-rules 0.2.1 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-16/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro-rules-macros v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1386007e81dfac6d008b9fbdc0ef8341e283a9d462dd84749a13a1da66b09f6
[INFO] running `Command { std: "docker" "start" "-a" "b1386007e81dfac6d008b9fbdc0ef8341e283a9d462dd84749a13a1da66b09f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1386007e81dfac6d008b9fbdc0ef8341e283a9d462dd84749a13a1da66b09f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1386007e81dfac6d008b9fbdc0ef8341e283a9d462dd84749a13a1da66b09f6", kill_on_drop: false }`
[INFO] [stdout] b1386007e81dfac6d008b9fbdc0ef8341e283a9d462dd84749a13a1da66b09f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f92ca249bb35afa443b96a4328ba4fecb8fa87d84fd0c0e2ef06cc3f43b9cc1c
[INFO] running `Command { std: "docker" "start" "-a" "f92ca249bb35afa443b96a4328ba4fecb8fa87d84fd0c0e2ef06cc3f43b9cc1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling quote v0.6.13
[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 7.24s
[INFO] running `Command { std: "docker" "inspect" "f92ca249bb35afa443b96a4328ba4fecb8fa87d84fd0c0e2ef06cc3f43b9cc1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f92ca249bb35afa443b96a4328ba4fecb8fa87d84fd0c0e2ef06cc3f43b9cc1c", kill_on_drop: false }`
[INFO] [stdout] f92ca249bb35afa443b96a4328ba4fecb8fa87d84fd0c0e2ef06cc3f43b9cc1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82de971b6b5945a92ab8d9f33ef8ccb7d4320c6d40f1ab863b1857c693fb9f8c
[INFO] running `Command { std: "docker" "start" "-a" "82de971b6b5945a92ab8d9f33ef8ccb7d4320c6d40f1ab863b1857c693fb9f8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-rules v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/lib.rs:77:1
[INFO] [stdout]    |
[INFO] [stdout] 77 | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout] 78 | | pub use proc_macro_rules_macros::rules;
[INFO] [stdout]    | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] ...
[INFO] [stdout] 90 | /         rules!(tokens => {
[INFO] [stdout] 91 | |             ($finish:ident ($($found:ident)+) # [ $($inner:tt)? ] $($rest:expr)*) => {
[INFO] [stdout] 92 | |                 assert_eq!(finish.to_string(), "hi");
[INFO] [stdout] 93 | |                 assert_eq!(found.len(), 3);
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |             }
[INFO] [stdout] 98 | |         });
[INFO] [stdout]    | |__________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/lib.rs:77:1
[INFO] [stdout]    |
[INFO] [stdout] 77 | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout] 78 | | pub use proc_macro_rules_macros::rules;
[INFO] [stdout]    | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] ...
[INFO] [stdout] 90 | /         rules!(tokens => {
[INFO] [stdout] 91 | |             ($finish:ident ($($found:ident)+) # [ $($inner:tt)? ] $($rest:expr)*) => {
[INFO] [stdout] 92 | |                 assert_eq!(finish.to_string(), "hi");
[INFO] [stdout] 93 | |                 assert_eq!(found.len(), 3);
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |             }
[INFO] [stdout] 98 | |         });
[INFO] [stdout]    | |__________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:77:1
[INFO] [stdout]     |
[INFO] [stdout] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stdout]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] ...
[INFO] [stdout] 105 | /         rules!(tokens => {
[INFO] [stdout] 106 | |             () => {
[INFO] [stdout] 107 | |                 return;
[INFO] [stdout] 108 | |             }
[INFO] [stdout] 109 | |         });
[INFO] [stdout]     | |__________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/lib.rs:77:1
[INFO] [stdout]     |
[INFO] [stdout] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stdout]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] ...
[INFO] [stdout] 105 | /         rules!(tokens => {
[INFO] [stdout] 106 | |             () => {
[INFO] [stdout] 107 | |                 return;
[INFO] [stdout] 108 | |             }
[INFO] [stdout] 109 | |         });
[INFO] [stdout]     | |__________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/lib.rs:77:1
[INFO] [stdout]     |
[INFO] [stdout] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stdout]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] ...
[INFO] [stdout] 117 | /         rules!(tokens => {
[INFO] [stdout] 118 | |             (bar) => {}
[INFO] [stdout] 119 | |         });
[INFO] [stdout]     | |__________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:77:1
[INFO] [stdout]     |
[INFO] [stdout] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stdout]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] ...
[INFO] [stdout] 125 | /             rules!(tokens => {
[INFO] [stdout] 126 | |                 (foo) => {
[INFO] [stdout] 127 | |                     if expected_branch == 0 {
[INFO] [stdout] 128 | |                         return;
[INFO] [stdout] ...   |
[INFO] [stdout] 152 | |                 }
[INFO] [stdout] 153 | |             });
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/lib.rs:77:1
[INFO] [stdout]     |
[INFO] [stdout] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stdout]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] ...
[INFO] [stdout] 125 | /             rules!(tokens => {
[INFO] [stdout] 126 | |                 (foo) => {
[INFO] [stdout] 127 | |                     if expected_branch == 0 {
[INFO] [stdout] 128 | |                         return;
[INFO] [stdout] ...   |
[INFO] [stdout] 152 | |                 }
[INFO] [stdout] 153 | |             });
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:77:1
[INFO] [stdout]     |
[INFO] [stdout] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stdout]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] ...
[INFO] [stdout] 165 | /             rules!(tokens => {
[INFO] [stdout] 166 | |                 (foo $(bar),? baz) => {
[INFO] [stdout] 167 | |                     return;
[INFO] [stdout] 168 | |                 }
[INFO] [stdout] 169 | |             });
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/lib.rs:77:1
[INFO] [stdout]     |
[INFO] [stdout] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stdout]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] ...
[INFO] [stdout] 165 | /             rules!(tokens => {
[INFO] [stdout] 166 | |                 (foo $(bar),? baz) => {
[INFO] [stdout] 167 | |                     return;
[INFO] [stdout] 168 | |                 }
[INFO] [stdout] 169 | |             });
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:77:1
[INFO] [stdout]     |
[INFO] [stdout] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stdout]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] ...
[INFO] [stdout] 181 | /             rules!(tokens => {
[INFO] [stdout] 182 | |                 (foo $(bar),+ baz) => {
[INFO] [stdout] 183 | |                     return;
[INFO] [stdout] 184 | |                 }
[INFO] [stdout] 185 | |             });
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/lib.rs:77:1
[INFO] [stdout]     |
[INFO] [stdout] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stdout]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] ...
[INFO] [stdout] 181 | /             rules!(tokens => {
[INFO] [stdout] 182 | |                 (foo $(bar),+ baz) => {
[INFO] [stdout] 183 | |                     return;
[INFO] [stdout] 184 | |                 }
[INFO] [stdout] 185 | |             });
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:77:1
[INFO] [stdout]     |
[INFO] [stdout] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stdout]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] ...
[INFO] [stdout] 200 | /             rules!(tokens => {
[INFO] [stdout] 201 | |                 (foo $(bar),* baz) => {
[INFO] [stdout] 202 | |                     return;
[INFO] [stdout] 203 | |                 }
[INFO] [stdout] 204 | |             });
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/lib.rs:77:1
[INFO] [stdout]     |
[INFO] [stdout] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stdout]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] ...
[INFO] [stdout] 200 | /             rules!(tokens => {
[INFO] [stdout] 201 | |                 (foo $(bar),* baz) => {
[INFO] [stdout] 202 | |                     return;
[INFO] [stdout] 203 | |                 }
[INFO] [stdout] 204 | |             });
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `outer`
[INFO] [stdout]   --> src/lib.rs:77:1
[INFO] [stdout]    |
[INFO] [stdout] 77 | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout] 78 | | pub use proc_macro_rules_macros::rules;
[INFO] [stdout]    | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stdout] ...
[INFO] [stdout] 90 | /         rules!(tokens => {
[INFO] [stdout] 91 | |             ($finish:ident ($($found:ident)+) # [ $($inner:tt)? ] $($rest:expr)*) => {
[INFO] [stdout] 92 | |                 assert_eq!(finish.to_string(), "hi");
[INFO] [stdout] 93 | |                 assert_eq!(found.len(), 3);
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |             }
[INFO] [stdout] 98 | |         });
[INFO] [stdout]    | |__________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `outer`
[INFO] [stdout]    --> src/lib.rs:77:1
[INFO] [stdout]     |
[INFO] [stdout] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stdout]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stdout] ...
[INFO] [stdout] 105 | /         rules!(tokens => {
[INFO] [stdout] 106 | |             () => {
[INFO] [stdout] 107 | |                 return;
[INFO] [stdout] 108 | |             }
[INFO] [stdout] 109 | |         });
[INFO] [stdout]     | |__________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `outer`
[INFO] [stdout]    --> src/lib.rs:77:1
[INFO] [stdout]     |
[INFO] [stdout] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stdout]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stdout] ...
[INFO] [stdout] 117 | /         rules!(tokens => {
[INFO] [stdout] 118 | |             (bar) => {}
[INFO] [stdout] 119 | |         });
[INFO] [stdout]     | |__________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `outer`
[INFO] [stdout]    --> src/lib.rs:77:1
[INFO] [stdout]     |
[INFO] [stdout] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stdout]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stdout] ...
[INFO] [stdout] 125 | /             rules!(tokens => {
[INFO] [stdout] 126 | |                 (foo) => {
[INFO] [stdout] 127 | |                     if expected_branch == 0 {
[INFO] [stdout] 128 | |                         return;
[INFO] [stdout] ...   |
[INFO] [stdout] 152 | |                 }
[INFO] [stdout] 153 | |             });
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `outer`
[INFO] [stdout]    --> src/lib.rs:77:1
[INFO] [stdout]     |
[INFO] [stdout] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stdout]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stdout] ...
[INFO] [stdout] 165 | /             rules!(tokens => {
[INFO] [stdout] 166 | |                 (foo $(bar),? baz) => {
[INFO] [stdout] 167 | |                     return;
[INFO] [stdout] 168 | |                 }
[INFO] [stdout] 169 | |             });
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `outer`
[INFO] [stdout]    --> src/lib.rs:77:1
[INFO] [stdout]     |
[INFO] [stdout] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stdout]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stdout] ...
[INFO] [stdout] 181 | /             rules!(tokens => {
[INFO] [stdout] 182 | |                 (foo $(bar),+ baz) => {
[INFO] [stdout] 183 | |                     return;
[INFO] [stdout] 184 | |                 }
[INFO] [stdout] 185 | |             });
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `outer`
[INFO] [stdout]    --> src/lib.rs:77:1
[INFO] [stdout]     |
[INFO] [stdout] 77  | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout] 78  | | pub use proc_macro_rules_macros::rules;
[INFO] [stdout]     | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stdout] ...
[INFO] [stdout] 200 | /             rules!(tokens => {
[INFO] [stdout] 201 | |                 (foo $(bar),* baz) => {
[INFO] [stdout] 202 | |                     return;
[INFO] [stdout] 203 | |                 }
[INFO] [stdout] 204 | |             });
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:77:1
[INFO] [stdout]    |
[INFO] [stdout] 77 |    #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout]    |   _^
[INFO] [stdout]    |  |_|
[INFO] [stdout]    | ||
[INFO] [stdout] 78 | || pub use proc_macro_rules_macros::rules;
[INFO] [stdout]    | ||_|____________________________________^
[INFO] [stdout]    |  |_|
[INFO] [stdout]    |    help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 90 | /          rules!(tokens => {
[INFO] [stdout] 91 | |              ($finish:ident ($($found:ident)+) # [ $($inner:tt)? ] $($rest:expr)*) => {
[INFO] [stdout] 92 | |                  assert_eq!(finish.to_string(), "hi");
[INFO] [stdout] 93 | |                  assert_eq!(found.len(), 3);
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |              }
[INFO] [stdout] 98 | |          });
[INFO] [stdout]    | |___________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:77:1
[INFO] [stdout]     |
[INFO] [stdout] 77  |    #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout]     |   _^
[INFO] [stdout]     |  |_|
[INFO] [stdout]     | ||
[INFO] [stdout] 78  | || pub use proc_macro_rules_macros::rules;
[INFO] [stdout]     | ||_|____________________________________^
[INFO] [stdout]     |  |_|
[INFO] [stdout]     |    help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 105 | /          rules!(tokens => {
[INFO] [stdout] 106 | |              () => {
[INFO] [stdout] 107 | |                  return;
[INFO] [stdout] 108 | |              }
[INFO] [stdout] 109 | |          });
[INFO] [stdout]     | |___________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:77:1
[INFO] [stdout]     |
[INFO] [stdout] 77  |    #[proc_macro_hack::proc_macro_hack]
[INFO] [stdout]     |   _^
[INFO] [stdout]     |  |_|
[INFO] [stdout]     | ||
[INFO] [stdout] 78  | || pub use proc_macro_rules_macros::rules;
[INFO] [stdout]     | ||_|____________________________________^
[INFO] [stdout]     |  |_|
[INFO] [stdout]     |    help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 125 | /              rules!(tokens => {
[INFO] [stdout] 126 | |                  (foo) => {
[INFO] [stdout] 127 | |                      if expected_branch == 0 {
[INFO] [stdout] 128 | |                          return;
[INFO] [stdout] ...   |
[INFO] [stdout] 152 | |                  }
[INFO] [stdout] 153 | |              });
[INFO] [stdout]     | |_______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.28s
[INFO] running `Command { std: "docker" "inspect" "82de971b6b5945a92ab8d9f33ef8ccb7d4320c6d40f1ab863b1857c693fb9f8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82de971b6b5945a92ab8d9f33ef8ccb7d4320c6d40f1ab863b1857c693fb9f8c", kill_on_drop: false }`
[INFO] [stdout] 82de971b6b5945a92ab8d9f33ef8ccb7d4320c6d40f1ab863b1857c693fb9f8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6c6321a0e881879aef3a6706abd91b7ef1c4ceb8726a13b557eaa327e88e6608
[INFO] running `Command { std: "docker" "start" "-a" "6c6321a0e881879aef3a6706abd91b7ef1c4ceb8726a13b557eaa327e88e6608", kill_on_drop: false }`
[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 the macro `proc_macro_call` (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 the macro `proc_macro_call` (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 the macro `proc_macro_call` (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 the macro `proc_macro_call` (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 the macro `proc_macro_call` (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 the macro `proc_macro_call` (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 the macro `proc_macro_call` (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 the macro `proc_macro_call` (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 the macro `proc_macro_call` (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 the macro `proc_macro_call` (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 the macro `proc_macro_call` (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 the macro `proc_macro_call` (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 $(bar),* baz) => {
[INFO] [stderr] 202 | |                     return;
[INFO] [stderr] 203 | |                 }
[INFO] [stderr] 204 | |             });
[INFO] [stderr]     | |______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outer`
[INFO] [stderr]   --> src/lib.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | / #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr] 78 | | pub use proc_macro_rules_macros::rules;
[INFO] [stderr]    | |______________________________________^ help: if this is intentional, prefix it with an underscore: `_outer`
[INFO] [stderr] ...
[INFO] [stderr] 90 | /         rules!(tokens => {
[INFO] [stderr] 91 | |             ($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 the macro `proc_macro_call` (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 the macro `proc_macro_call` (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 the macro `proc_macro_call` (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 the macro `proc_macro_call` (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 the macro `proc_macro_call` (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 the macro `proc_macro_call` (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 $(bar),* baz) => {
[INFO] [stderr] 202 | |                     return;
[INFO] [stderr] 203 | |                 }
[INFO] [stderr] 204 | |             });
[INFO] [stderr]     | |______________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 |    #[proc_macro_hack::proc_macro_hack]
[INFO] [stderr]    |   _^
[INFO] [stderr]    |  |_|
[INFO] [stderr]    | ||
[INFO] [stderr] 78 | || pub use proc_macro_rules_macros::rules;
[INFO] [stderr]    | ||_|____________________________________^
[INFO] [stderr]    |  |_|
[INFO] [stderr]    |    help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 90 | /          rules!(tokens => {
[INFO] [stderr] 91 | |              ($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 the macro `proc_macro_call` (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 the macro `proc_macro_call` (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 the macro `proc_macro_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `proc-macro-rules` (lib test) generated 23 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/proc_macro_rules-4844326567f3d277)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::test_empty ... ok
[INFO] [stdout] test tests::test_opt ... ok
[INFO] [stdout] test tests::test_branches ... ok
[INFO] [stdout] test tests::test_smoke ... ok
[INFO] [stdout] test tests::test_plus ... ok
[INFO] [stdout] test tests::test_star ... ok
[INFO] [stdout] test tests::test_no_match - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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; finished in 1.50s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6c6321a0e881879aef3a6706abd91b7ef1c4ceb8726a13b557eaa327e88e6608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c6321a0e881879aef3a6706abd91b7ef1c4ceb8726a13b557eaa327e88e6608", kill_on_drop: false }`
[INFO] [stdout] 6c6321a0e881879aef3a6706abd91b7ef1c4ceb8726a13b557eaa327e88e6608