[INFO] fetching crate simi-macros 0.2.1...
[INFO] testing simi-macros-0.2.1 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate simi-macros 0.2.1 into /workspace/builds/worker-42/source
[INFO] validating manifest of crates.io crate simi-macros 0.2.1 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simi-macros 0.2.1
[INFO] finished tweaking crates.io crate simi-macros 0.2.1
[INFO] tweaked toml for crates.io crate simi-macros 0.2.1 written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e007f3e39f28f6732091465b63cca27cb4b8dcd0b9a8f4c5f6f447da6130e06
[INFO] running `Command { std: "docker" "start" "-a" "1e007f3e39f28f6732091465b63cca27cb4b8dcd0b9a8f4c5f6f447da6130e06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e007f3e39f28f6732091465b63cca27cb4b8dcd0b9a8f4c5f6f447da6130e06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e007f3e39f28f6732091465b63cca27cb4b8dcd0b9a8f4c5f6f447da6130e06", kill_on_drop: false }`
[INFO] [stdout] 1e007f3e39f28f6732091465b63cca27cb4b8dcd0b9a8f4c5f6f447da6130e06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28a9cd3a1c589b56bb240bf24090dbe53dcd67709986da3d3232a263e2def496
[INFO] running `Command { std: "docker" "start" "-a" "28a9cd3a1c589b56bb240bf24090dbe53dcd67709986da3d3232a263e2def496", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling simi-macros v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/render/generate.rs:476:24
[INFO] [stdout]     |
[INFO] [stdout] 476 |                   panic!(format!(
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 477 | |                     "Calling generate_box_handler on a ElementEventHandler::Placeholder: {}",
[INFO] [stdout] 478 | |                     handler
[INFO] [stdout] 479 | |                 ));
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 476 ~                 panic!(
[INFO] [stdout] 477 |                     "Calling generate_box_handler on a ElementEventHandler::Placeholder: {}",
[INFO] [stdout] 478 |                     handler
[INFO] [stdout] 479 ~                 );
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/render/helper.rs:79:21
[INFO] [stdout]    |
[INFO] [stdout] 79 |           _ => panic!(format!(
[INFO] [stdout]    |  _____________________^
[INFO] [stdout] 80 | |             "JS argument name for {} is not supported yet. Please file a bug!",
[INFO] [stdout] 81 | |             event_name
[INFO] [stdout] 82 | |         )),
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 79 ~         _ => panic!(
[INFO] [stdout] 80 |             "JS argument name for {} is not supported yet. Please file a bug!",
[INFO] [stdout] 81 |             event_name
[INFO] [stdout] 82 ~         ),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/render/error_on_stable.rs:6:12
[INFO] [stdout]    |
[INFO] [stdout] 6  |       panic!(format!(
[INFO] [stdout]    |  ____________^
[INFO] [stdout] 7  | |         "{}
[INFO] [stdout] 8  | | =====
[INFO] [stdout] 9  | | '{}' appears on line {}
[INFO] [stdout] ...  |
[INFO] [stdout] 17 | |         crate::BETTER_ERROR_MESSAGE
[INFO] [stdout] 18 | |     ))
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 6  ~     panic!(
[INFO] [stdout] 7  |         "{}
[INFO] [stdout] 8  | =====
[INFO] [stdout] 9  | '{}' appears on line {}
[INFO] [stdout] 10 | =====
[INFO] [stdout] 11 | {}
[INFO] [stdout]  ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/render/mod.rs:364:24
[INFO] [stdout]     |
[INFO] [stdout] 364 |                   panic!(format!(
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 365 | |                     "Attribute `{}` of element `{}` does not support optional value",
[INFO] [stdout] 366 | |                     self.name, tag
[INFO] [stdout] 367 | |                 ));
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 364 ~                 panic!(
[INFO] [stdout] 365 |                     "Attribute `{}` of element `{}` does not support optional value",
[INFO] [stdout] 366 |                     self.name, tag
[INFO] [stdout] 367 ~                 );
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.63s
[INFO] running `Command { std: "docker" "inspect" "28a9cd3a1c589b56bb240bf24090dbe53dcd67709986da3d3232a263e2def496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28a9cd3a1c589b56bb240bf24090dbe53dcd67709986da3d3232a263e2def496", kill_on_drop: false }`
[INFO] [stdout] 28a9cd3a1c589b56bb240bf24090dbe53dcd67709986da3d3232a263e2def496
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86e87390b0f6b4fa39c75243cf6897e068e4d8be2933907d4bd6d0c2a6ce5f4b
[INFO] running `Command { std: "docker" "start" "-a" "86e87390b0f6b4fa39c75243cf6897e068e4d8be2933907d4bd6d0c2a6ce5f4b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling simi-macros v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/render/generate.rs:476:24
[INFO] [stdout]     |
[INFO] [stdout] 476 |                   panic!(format!(
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 477 | |                     "Calling generate_box_handler on a ElementEventHandler::Placeholder: {}",
[INFO] [stdout] 478 | |                     handler
[INFO] [stdout] 479 | |                 ));
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 476 ~                 panic!(
[INFO] [stdout] 477 |                     "Calling generate_box_handler on a ElementEventHandler::Placeholder: {}",
[INFO] [stdout] 478 |                     handler
[INFO] [stdout] 479 ~                 );
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/render/helper.rs:79:21
[INFO] [stdout]    |
[INFO] [stdout] 79 |           _ => panic!(format!(
[INFO] [stdout]    |  _____________________^
[INFO] [stdout] 80 | |             "JS argument name for {} is not supported yet. Please file a bug!",
[INFO] [stdout] 81 | |             event_name
[INFO] [stdout] 82 | |         )),
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 79 ~         _ => panic!(
[INFO] [stdout] 80 |             "JS argument name for {} is not supported yet. Please file a bug!",
[INFO] [stdout] 81 |             event_name
[INFO] [stdout] 82 ~         ),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/render/error_on_stable.rs:6:12
[INFO] [stdout]    |
[INFO] [stdout] 6  |       panic!(format!(
[INFO] [stdout]    |  ____________^
[INFO] [stdout] 7  | |         "{}
[INFO] [stdout] 8  | | =====
[INFO] [stdout] 9  | | '{}' appears on line {}
[INFO] [stdout] ...  |
[INFO] [stdout] 17 | |         crate::BETTER_ERROR_MESSAGE
[INFO] [stdout] 18 | |     ))
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 6  ~     panic!(
[INFO] [stdout] 7  |         "{}
[INFO] [stdout] 8  | =====
[INFO] [stdout] 9  | '{}' appears on line {}
[INFO] [stdout] 10 | =====
[INFO] [stdout] 11 | {}
[INFO] [stdout]  ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/render/mod.rs:364:24
[INFO] [stdout]     |
[INFO] [stdout] 364 |                   panic!(format!(
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 365 | |                     "Attribute `{}` of element `{}` does not support optional value",
[INFO] [stdout] 366 | |                     self.name, tag
[INFO] [stdout] 367 | |                 ));
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 364 ~                 panic!(
[INFO] [stdout] 365 |                     "Attribute `{}` of element `{}` does not support optional value",
[INFO] [stdout] 366 |                     self.name, tag
[INFO] [stdout] 367 ~                 );
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.78s
[INFO] running `Command { std: "docker" "inspect" "86e87390b0f6b4fa39c75243cf6897e068e4d8be2933907d4bd6d0c2a6ce5f4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86e87390b0f6b4fa39c75243cf6897e068e4d8be2933907d4bd6d0c2a6ce5f4b", kill_on_drop: false }`
[INFO] [stdout] 86e87390b0f6b4fa39c75243cf6897e068e4d8be2933907d4bd6d0c2a6ce5f4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dd4b16d31d97f4fb95f208229d8e8558ac1a1b84036b803afbb9dc73194022b7
[INFO] running `Command { std: "docker" "start" "-a" "dd4b16d31d97f4fb95f208229d8e8558ac1a1b84036b803afbb9dc73194022b7", kill_on_drop: false }`
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/render/generate.rs:476:24
[INFO] [stderr]     |
[INFO] [stderr] 476 |                   panic!(format!(
[INFO] [stderr]     |  ________________________^
[INFO] [stderr] 477 | |                     "Calling generate_box_handler on a ElementEventHandler::Placeholder: {}",
[INFO] [stderr] 478 | |                     handler
[INFO] [stderr] 479 | |                 ));
[INFO] [stderr]     | |_________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 476 ~                 panic!(
[INFO] [stderr] 477 |                     "Calling generate_box_handler on a ElementEventHandler::Placeholder: {}",
[INFO] [stderr] 478 |                     handler
[INFO] [stderr] 479 ~                 );
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/render/helper.rs:79:21
[INFO] [stderr]    |
[INFO] [stderr] 79 |           _ => panic!(format!(
[INFO] [stderr]    |  _____________________^
[INFO] [stderr] 80 | |             "JS argument name for {} is not supported yet. Please file a bug!",
[INFO] [stderr] 81 | |             event_name
[INFO] [stderr] 82 | |         )),
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]    |
[INFO] [stderr] 79 ~         _ => panic!(
[INFO] [stderr] 80 |             "JS argument name for {} is not supported yet. Please file a bug!",
[INFO] [stderr] 81 |             event_name
[INFO] [stderr] 82 ~         ),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/render/error_on_stable.rs:6:12
[INFO] [stderr]    |
[INFO] [stderr] 6  |       panic!(format!(
[INFO] [stderr]    |  ____________^
[INFO] [stderr] 7  | |         "{}
[INFO] [stderr] 8  | | =====
[INFO] [stderr] 9  | | '{}' appears on line {}
[INFO] [stderr] ...  |
[INFO] [stderr] 17 | |         crate::BETTER_ERROR_MESSAGE
[INFO] [stderr] 18 | |     ))
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]    |
[INFO] [stderr] 6  ~     panic!(
[INFO] [stderr] 7  |         "{}
[INFO] [stderr] 8  | =====
[INFO] [stderr] 9  | '{}' appears on line {}
[INFO] [stderr] 10 | =====
[INFO] [stderr] 11 | {}
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/render/mod.rs:364:24
[INFO] [stderr]     |
[INFO] [stderr] 364 |                   panic!(format!(
[INFO] [stderr]     |  ________________________^
[INFO] [stderr] 365 | |                     "Attribute `{}` of element `{}` does not support optional value",
[INFO] [stderr] 366 | |                     self.name, tag
[INFO] [stderr] 367 | |                 ));
[INFO] [stderr]     | |_________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 364 ~                 panic!(
[INFO] [stderr] 365 |                     "Attribute `{}` of element `{}` does not support optional value",
[INFO] [stderr] 366 |                     self.name, tag
[INFO] [stderr] 367 ~                 );
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `simi-macros` (lib test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/simi_macros-d1448080270bcf2b)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test render::test::one_empty_element ... ok
[INFO] [stdout] test render::test::macro_options ... ok
[INFO] [stdout] test render::test::multi_elements_at_root ... ok
[INFO] [stdout] test render::test::one_element_with_attributes ... ok
[INFO] [stdout] test render::test::nested_elements ... ok
[INFO] [stdout] test render::test::no_update ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dd4b16d31d97f4fb95f208229d8e8558ac1a1b84036b803afbb9dc73194022b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd4b16d31d97f4fb95f208229d8e8558ac1a1b84036b803afbb9dc73194022b7", kill_on_drop: false }`
[INFO] [stdout] dd4b16d31d97f4fb95f208229d8e8558ac1a1b84036b803afbb9dc73194022b7