[INFO] crate risp 0.7.0 is already in cache
[INFO] extracting crate risp 0.7.0 into work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/risp/0.7.0
[INFO] extracting crate risp 0.7.0 into work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/risp/0.7.0
[INFO] validating manifest of risp-0.7.0 on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of risp-0.7.0 on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing risp-0.7.0
[INFO] finished frobbing risp-0.7.0
[INFO] frobbed toml for risp-0.7.0 written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/risp/0.7.0/Cargo.toml
[INFO] started frobbing risp-0.7.0
[INFO] finished frobbing risp-0.7.0
[INFO] frobbed toml for risp-0.7.0 written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/risp/0.7.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking risp-0.7.0 against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-1/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/risp/0.7.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 699c2230a7f3a522fca700d88c4ee1630e698c1393422f2a0cab1a941e4bf867
[INFO] running `"docker" "start" "-a" "699c2230a7f3a522fca700d88c4ee1630e698c1393422f2a0cab1a941e4bf867"`
[INFO] [stderr]     Checking risp v0.7.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/parse.rs:6:35
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn parse_internal(tokenizer: &mut Iterator<Item=Token>) -> Result<RispType, RispError> {
[INFO] [stderr]   |                                   ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Token>`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/tokenize.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | / lazy_static! {
[INFO] [stderr] 18 | |     static ref COMMENT_REGEXP: Regex = Regex::new("^(\\s+|;.*?(\n|$))+").unwrap();
[INFO] [stderr] 19 | |     static ref STR_REGEXP: Regex = Regex::new("^\".*?\"").unwrap();
[INFO] [stderr] 20 | |     static ref SYMBOL_REGEXP: Regex = Regex::new(r"^[^\s\{\}()\[\]]+").unwrap();
[INFO] [stderr] 21 | |     static ref NUMBER_REGEXP: Regex = Regex::new(r"^-?\d+").unwrap();
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/tokenize.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | / lazy_static! {
[INFO] [stderr] 18 | |     static ref COMMENT_REGEXP: Regex = Regex::new("^(\\s+|;.*?(\n|$))+").unwrap();
[INFO] [stderr] 19 | |     static ref STR_REGEXP: Regex = Regex::new("^\".*?\"").unwrap();
[INFO] [stderr] 20 | |     static ref SYMBOL_REGEXP: Regex = Regex::new(r"^[^\s\{\}()\[\]]+").unwrap();
[INFO] [stderr] 21 | |     static ref NUMBER_REGEXP: Regex = Regex::new(r"^-?\d+").unwrap();
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/tokenize.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | / lazy_static! {
[INFO] [stderr] 18 | |     static ref COMMENT_REGEXP: Regex = Regex::new("^(\\s+|;.*?(\n|$))+").unwrap();
[INFO] [stderr] 19 | |     static ref STR_REGEXP: Regex = Regex::new("^\".*?\"").unwrap();
[INFO] [stderr] 20 | |     static ref SYMBOL_REGEXP: Regex = Regex::new(r"^[^\s\{\}()\[\]]+").unwrap();
[INFO] [stderr] 21 | |     static ref NUMBER_REGEXP: Regex = Regex::new(r"^-?\d+").unwrap();
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/tokenize.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | / lazy_static! {
[INFO] [stderr] 18 | |     static ref COMMENT_REGEXP: Regex = Regex::new("^(\\s+|;.*?(\n|$))+").unwrap();
[INFO] [stderr] 19 | |     static ref STR_REGEXP: Regex = Regex::new("^\".*?\"").unwrap();
[INFO] [stderr] 20 | |     static ref SYMBOL_REGEXP: Regex = Regex::new(r"^[^\s\{\}()\[\]]+").unwrap();
[INFO] [stderr] 21 | |     static ref NUMBER_REGEXP: Regex = Regex::new(r"^-?\d+").unwrap();
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/parse.rs:6:35
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn parse_internal(tokenizer: &mut Iterator<Item=Token>) -> Result<RispType, RispError> {
[INFO] [stderr]   |                                   ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Token>`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/tokenize.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | / lazy_static! {
[INFO] [stderr] 18 | |     static ref COMMENT_REGEXP: Regex = Regex::new("^(\\s+|;.*?(\n|$))+").unwrap();
[INFO] [stderr] 19 | |     static ref STR_REGEXP: Regex = Regex::new("^\".*?\"").unwrap();
[INFO] [stderr] 20 | |     static ref SYMBOL_REGEXP: Regex = Regex::new(r"^[^\s\{\}()\[\]]+").unwrap();
[INFO] [stderr] 21 | |     static ref NUMBER_REGEXP: Regex = Regex::new(r"^-?\d+").unwrap();
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/tokenize.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | / lazy_static! {
[INFO] [stderr] 18 | |     static ref COMMENT_REGEXP: Regex = Regex::new("^(\\s+|;.*?(\n|$))+").unwrap();
[INFO] [stderr] 19 | |     static ref STR_REGEXP: Regex = Regex::new("^\".*?\"").unwrap();
[INFO] [stderr] 20 | |     static ref SYMBOL_REGEXP: Regex = Regex::new(r"^[^\s\{\}()\[\]]+").unwrap();
[INFO] [stderr] 21 | |     static ref NUMBER_REGEXP: Regex = Regex::new(r"^-?\d+").unwrap();
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/tokenize.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | / lazy_static! {
[INFO] [stderr] 18 | |     static ref COMMENT_REGEXP: Regex = Regex::new("^(\\s+|;.*?(\n|$))+").unwrap();
[INFO] [stderr] 19 | |     static ref STR_REGEXP: Regex = Regex::new("^\".*?\"").unwrap();
[INFO] [stderr] 20 | |     static ref SYMBOL_REGEXP: Regex = Regex::new(r"^[^\s\{\}()\[\]]+").unwrap();
[INFO] [stderr] 21 | |     static ref NUMBER_REGEXP: Regex = Regex::new(r"^-?\d+").unwrap();
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/tokenize.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | / lazy_static! {
[INFO] [stderr] 18 | |     static ref COMMENT_REGEXP: Regex = Regex::new("^(\\s+|;.*?(\n|$))+").unwrap();
[INFO] [stderr] 19 | |     static ref STR_REGEXP: Regex = Regex::new("^\".*?\"").unwrap();
[INFO] [stderr] 20 | |     static ref SYMBOL_REGEXP: Regex = Regex::new(r"^[^\s\{\}()\[\]]+").unwrap();
[INFO] [stderr] 21 | |     static ref NUMBER_REGEXP: Regex = Regex::new(r"^-?\d+").unwrap();
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/parse.rs:6:35
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn parse_internal(tokenizer: &mut Iterator<Item=Token>) -> Result<RispType, RispError> {
[INFO] [stderr]   |                                   ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Token>`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/tokenize.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | / lazy_static! {
[INFO] [stderr] 18 | |     static ref COMMENT_REGEXP: Regex = Regex::new("^(\\s+|;.*?(\n|$))+").unwrap();
[INFO] [stderr] 19 | |     static ref STR_REGEXP: Regex = Regex::new("^\".*?\"").unwrap();
[INFO] [stderr] 20 | |     static ref SYMBOL_REGEXP: Regex = Regex::new(r"^[^\s\{\}()\[\]]+").unwrap();
[INFO] [stderr] 21 | |     static ref NUMBER_REGEXP: Regex = Regex::new(r"^-?\d+").unwrap();
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/tokenize.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | / lazy_static! {
[INFO] [stderr] 18 | |     static ref COMMENT_REGEXP: Regex = Regex::new("^(\\s+|;.*?(\n|$))+").unwrap();
[INFO] [stderr] 19 | |     static ref STR_REGEXP: Regex = Regex::new("^\".*?\"").unwrap();
[INFO] [stderr] 20 | |     static ref SYMBOL_REGEXP: Regex = Regex::new(r"^[^\s\{\}()\[\]]+").unwrap();
[INFO] [stderr] 21 | |     static ref NUMBER_REGEXP: Regex = Regex::new(r"^-?\d+").unwrap();
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/tokenize.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | / lazy_static! {
[INFO] [stderr] 18 | |     static ref COMMENT_REGEXP: Regex = Regex::new("^(\\s+|;.*?(\n|$))+").unwrap();
[INFO] [stderr] 19 | |     static ref STR_REGEXP: Regex = Regex::new("^\".*?\"").unwrap();
[INFO] [stderr] 20 | |     static ref SYMBOL_REGEXP: Regex = Regex::new(r"^[^\s\{\}()\[\]]+").unwrap();
[INFO] [stderr] 21 | |     static ref NUMBER_REGEXP: Regex = Regex::new(r"^-?\d+").unwrap();
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/tokenize.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | / lazy_static! {
[INFO] [stderr] 18 | |     static ref COMMENT_REGEXP: Regex = Regex::new("^(\\s+|;.*?(\n|$))+").unwrap();
[INFO] [stderr] 19 | |     static ref STR_REGEXP: Regex = Regex::new("^\".*?\"").unwrap();
[INFO] [stderr] 20 | |     static ref SYMBOL_REGEXP: Regex = Regex::new(r"^[^\s\{\}()\[\]]+").unwrap();
[INFO] [stderr] 21 | |     static ref NUMBER_REGEXP: Regex = Regex::new(r"^-?\d+").unwrap();
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/parse.rs:6:35
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn parse_internal(tokenizer: &mut Iterator<Item=Token>) -> Result<RispType, RispError> {
[INFO] [stderr]   |                                   ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Token>`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/tokenize.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | / lazy_static! {
[INFO] [stderr] 18 | |     static ref COMMENT_REGEXP: Regex = Regex::new("^(\\s+|;.*?(\n|$))+").unwrap();
[INFO] [stderr] 19 | |     static ref STR_REGEXP: Regex = Regex::new("^\".*?\"").unwrap();
[INFO] [stderr] 20 | |     static ref SYMBOL_REGEXP: Regex = Regex::new(r"^[^\s\{\}()\[\]]+").unwrap();
[INFO] [stderr] 21 | |     static ref NUMBER_REGEXP: Regex = Regex::new(r"^-?\d+").unwrap();
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/tokenize.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | / lazy_static! {
[INFO] [stderr] 18 | |     static ref COMMENT_REGEXP: Regex = Regex::new("^(\\s+|;.*?(\n|$))+").unwrap();
[INFO] [stderr] 19 | |     static ref STR_REGEXP: Regex = Regex::new("^\".*?\"").unwrap();
[INFO] [stderr] 20 | |     static ref SYMBOL_REGEXP: Regex = Regex::new(r"^[^\s\{\}()\[\]]+").unwrap();
[INFO] [stderr] 21 | |     static ref NUMBER_REGEXP: Regex = Regex::new(r"^-?\d+").unwrap();
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/tokenize.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | / lazy_static! {
[INFO] [stderr] 18 | |     static ref COMMENT_REGEXP: Regex = Regex::new("^(\\s+|;.*?(\n|$))+").unwrap();
[INFO] [stderr] 19 | |     static ref STR_REGEXP: Regex = Regex::new("^\".*?\"").unwrap();
[INFO] [stderr] 20 | |     static ref SYMBOL_REGEXP: Regex = Regex::new(r"^[^\s\{\}()\[\]]+").unwrap();
[INFO] [stderr] 21 | |     static ref NUMBER_REGEXP: Regex = Regex::new(r"^-?\d+").unwrap();
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/tokenize.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | / lazy_static! {
[INFO] [stderr] 18 | |     static ref COMMENT_REGEXP: Regex = Regex::new("^(\\s+|;.*?(\n|$))+").unwrap();
[INFO] [stderr] 19 | |     static ref STR_REGEXP: Regex = Regex::new("^\".*?\"").unwrap();
[INFO] [stderr] 20 | |     static ref SYMBOL_REGEXP: Regex = Regex::new(r"^[^\s\{\}()\[\]]+").unwrap();
[INFO] [stderr] 21 | |     static ref NUMBER_REGEXP: Regex = Regex::new(r"^-?\d+").unwrap();
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.87s
[INFO] running `"docker" "inspect" "699c2230a7f3a522fca700d88c4ee1630e698c1393422f2a0cab1a941e4bf867"`
[INFO] running `"docker" "rm" "-f" "699c2230a7f3a522fca700d88c4ee1630e698c1393422f2a0cab1a941e4bf867"`
[INFO] [stdout] 699c2230a7f3a522fca700d88c4ee1630e698c1393422f2a0cab1a941e4bf867