[INFO] updating cached repository jaemk/risp
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jaemk/risp
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jaemk/risp" "work/ex/beta-1.38-1/sources/1.37.0/gh/jaemk/risp"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jaemk/risp'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jaemk/risp" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jaemk/risp"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jaemk/risp'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 40d348f0a7f14e62cb55ce038eab99317425f9cb
[INFO] sha for GitHub repo jaemk/risp: 40d348f0a7f14e62cb55ce038eab99317425f9cb
[INFO] validating manifest of jaemk/risp on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jaemk/risp on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jaemk/risp
[INFO] finished frobbing jaemk/risp
[INFO] frobbed toml for jaemk/risp written to work/ex/beta-1.38-1/sources/1.37.0/gh/jaemk/risp/Cargo.toml
[INFO] started frobbing jaemk/risp
[INFO] finished frobbing jaemk/risp
[INFO] frobbed toml for jaemk/risp written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jaemk/risp/Cargo.toml
[INFO] crate jaemk/risp already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing jaemk/risp against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jaemk/risp:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 9ec3af0a164ca474254becfe98afb6e28736e3bc42895f9fb3af41341ce9cfc7
[INFO] running `"docker" "start" "-a" "9ec3af0a164ca474254becfe98afb6e28736e3bc42895f9fb3af41341ce9cfc7"`
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling thread-id v3.0.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.6
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling num-bigint v0.1.35
[INFO] [stderr]    Compiling thread_local v0.3.2
[INFO] [stderr]    Compiling aho-corasick v0.6.1
[INFO] [stderr]    Compiling num-rational v0.1.35
[INFO] [stderr]    Compiling regex v0.2.1
[INFO] [stderr]    Compiling num v0.1.36
[INFO] [stderr]    Compiling fraction v0.3.4
[INFO] [stderr]    Compiling rustyline v1.0.0
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]    Compiling error-chain v0.8.1
[INFO] [stderr]    Compiling risp v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant `small` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 116 |     small(Fraction),
[INFO] [stderr]     |     ^^^^^ help: convert the identifier to upper camel case: `Small`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `number` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:122:5
[INFO] [stderr]     |
[INFO] [stderr] 122 |     number(Number),
[INFO] [stderr]     |     ^^^^^^ help: convert the identifier to upper camel case: `Number`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `ident` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:123:5
[INFO] [stderr]     |
[INFO] [stderr] 123 |     ident(String),
[INFO] [stderr]     |     ^^^^^ help: convert the identifier to upper camel case: `Ident`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `string` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:124:5
[INFO] [stderr]     |
[INFO] [stderr] 124 |     string(String),
[INFO] [stderr]     |     ^^^^^^ help: convert the identifier to upper camel case: `String`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `keyword` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     keyword(String),
[INFO] [stderr]     |     ^^^^^^^ help: convert the identifier to upper camel case: `Keyword`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `nil` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:126:5
[INFO] [stderr]     |
[INFO] [stderr] 126 |     nil,
[INFO] [stderr]     |     ^^^ help: convert the identifier to upper camel case: `Nil`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `sexp` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:171:5
[INFO] [stderr]     |
[INFO] [stderr] 171 |     sexp(Sexp),
[INFO] [stderr]     |     ^^^^ help: convert the identifier to upper camel case: `Sexp`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `list` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:172:5
[INFO] [stderr]     |
[INFO] [stderr] 172 |     list(List),
[INFO] [stderr]     |     ^^^^ help: convert the identifier to upper camel case: `List`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `vec` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 173 |     vec(Vector),
[INFO] [stderr]     |     ^^^ help: convert the identifier to upper camel case: `Vec`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `map` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:174:5
[INFO] [stderr]     |
[INFO] [stderr] 174 |     map(Map),
[INFO] [stderr]     |     ^^^ help: convert the identifier to upper camel case: `Map`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `set` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:175:5
[INFO] [stderr]     |
[INFO] [stderr] 175 |     set(Set),
[INFO] [stderr]     |     ^^^ help: convert the identifier to upper camel case: `Set`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `atom` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:204:5
[INFO] [stderr]     |
[INFO] [stderr] 204 |     atom(Atom),
[INFO] [stderr]     |     ^^^^ help: convert the identifier to upper camel case: `Atom`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `sequence` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:205:5
[INFO] [stderr]     |
[INFO] [stderr] 205 |     sequence(Sequence),
[INFO] [stderr]     |     ^^^^^^^^ help: convert the identifier to upper camel case: `Sequence`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | / lazy_static! {
[INFO] [stderr] 41 | |     static ref NS: NameSpace = {
[INFO] [stderr] 42 | |         let mut map: NameSpace = HashMap::new();
[INFO] [stderr] 43 | |         map.insert("println", println);
[INFO] [stderr] ...  |
[INFO] [stderr] 46 | |     };
[INFO] [stderr] 47 | | }
[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/main.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | / lazy_static! {
[INFO] [stderr] 41 | |     static ref NS: NameSpace = {
[INFO] [stderr] 42 | |         let mut map: NameSpace = HashMap::new();
[INFO] [stderr] 43 | |         map.insert("println", println);
[INFO] [stderr] ...  |
[INFO] [stderr] 46 | |     };
[INFO] [stderr] 47 | | }
[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/main.rs:244:5
[INFO] [stderr]     |
[INFO] [stderr] 244 | /     lazy_static! {
[INFO] [stderr] 245 | |         static ref RE: Regex =
[INFO] [stderr] 246 | |             Regex::new(r##"(\(|#\(|'\(|\)|\[|\]|\{|#\{|\})|[^\s"\)\]\}]+|"([^"\)\]\}]*)""##)
[INFO] [stderr] 247 | |             .unwrap();
[INFO] [stderr] 248 | |     }
[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/main.rs:244:5
[INFO] [stderr]     |
[INFO] [stderr] 244 | /     lazy_static! {
[INFO] [stderr] 245 | |         static ref RE: Regex =
[INFO] [stderr] 246 | |             Regex::new(r##"(\(|#\(|'\(|\)|\[|\]|\{|#\{|\})|[^\s"\)\]\}]+|"([^"\)\]\}]*)""##)
[INFO] [stderr] 247 | |             .unwrap();
[INFO] [stderr] 248 | |     }
[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: method is never used: `to_list`
[INFO] [stderr]   --> src/main.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn to_list(self) -> List {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_empty`
[INFO] [stderr]   --> src/main.rs:80:5
[INFO] [stderr]    |
[INFO] [stderr] 80 |     fn is_empty(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop_front`
[INFO] [stderr]   --> src/main.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn pop_front(&mut self) -> Option<Value> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `vec`
[INFO] [stderr]    --> src/main.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 173 |     vec(Vector),
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `map`
[INFO] [stderr]    --> src/main.rs:174:5
[INFO] [stderr]     |
[INFO] [stderr] 174 |     map(Map),
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `set`
[INFO] [stderr]    --> src/main.rs:175:5
[INFO] [stderr]     |
[INFO] [stderr] 175 |     set(Set),
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.52s
[INFO] running `"docker" "inspect" "9ec3af0a164ca474254becfe98afb6e28736e3bc42895f9fb3af41341ce9cfc7"`
[INFO] running `"docker" "rm" "-f" "9ec3af0a164ca474254becfe98afb6e28736e3bc42895f9fb3af41341ce9cfc7"`
[INFO] [stdout] 9ec3af0a164ca474254becfe98afb6e28736e3bc42895f9fb3af41341ce9cfc7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jaemk/risp:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 080f02a449101a22b81dcc3608735a5ef82c12e2067842880aedf22dc935e051
[INFO] running `"docker" "start" "-a" "080f02a449101a22b81dcc3608735a5ef82c12e2067842880aedf22dc935e051"`
[INFO] [stderr]    Compiling risp v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant `small` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 116 |     small(Fraction),
[INFO] [stderr]     |     ^^^^^ help: convert the identifier to upper camel case: `Small`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `number` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:122:5
[INFO] [stderr]     |
[INFO] [stderr] 122 |     number(Number),
[INFO] [stderr]     |     ^^^^^^ help: convert the identifier to upper camel case: `Number`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `ident` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:123:5
[INFO] [stderr]     |
[INFO] [stderr] 123 |     ident(String),
[INFO] [stderr]     |     ^^^^^ help: convert the identifier to upper camel case: `Ident`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `string` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:124:5
[INFO] [stderr]     |
[INFO] [stderr] 124 |     string(String),
[INFO] [stderr]     |     ^^^^^^ help: convert the identifier to upper camel case: `String`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `keyword` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     keyword(String),
[INFO] [stderr]     |     ^^^^^^^ help: convert the identifier to upper camel case: `Keyword`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `nil` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:126:5
[INFO] [stderr]     |
[INFO] [stderr] 126 |     nil,
[INFO] [stderr]     |     ^^^ help: convert the identifier to upper camel case: `Nil`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `sexp` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:171:5
[INFO] [stderr]     |
[INFO] [stderr] 171 |     sexp(Sexp),
[INFO] [stderr]     |     ^^^^ help: convert the identifier to upper camel case: `Sexp`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `list` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:172:5
[INFO] [stderr]     |
[INFO] [stderr] 172 |     list(List),
[INFO] [stderr]     |     ^^^^ help: convert the identifier to upper camel case: `List`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `vec` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 173 |     vec(Vector),
[INFO] [stderr]     |     ^^^ help: convert the identifier to upper camel case: `Vec`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `map` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:174:5
[INFO] [stderr]     |
[INFO] [stderr] 174 |     map(Map),
[INFO] [stderr]     |     ^^^ help: convert the identifier to upper camel case: `Map`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `set` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:175:5
[INFO] [stderr]     |
[INFO] [stderr] 175 |     set(Set),
[INFO] [stderr]     |     ^^^ help: convert the identifier to upper camel case: `Set`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `atom` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:204:5
[INFO] [stderr]     |
[INFO] [stderr] 204 |     atom(Atom),
[INFO] [stderr]     |     ^^^^ help: convert the identifier to upper camel case: `Atom`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `sequence` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:205:5
[INFO] [stderr]     |
[INFO] [stderr] 205 |     sequence(Sequence),
[INFO] [stderr]     |     ^^^^^^^^ help: convert the identifier to upper camel case: `Sequence`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | / lazy_static! {
[INFO] [stderr] 41 | |     static ref NS: NameSpace = {
[INFO] [stderr] 42 | |         let mut map: NameSpace = HashMap::new();
[INFO] [stderr] 43 | |         map.insert("println", println);
[INFO] [stderr] ...  |
[INFO] [stderr] 46 | |     };
[INFO] [stderr] 47 | | }
[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/main.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | / lazy_static! {
[INFO] [stderr] 41 | |     static ref NS: NameSpace = {
[INFO] [stderr] 42 | |         let mut map: NameSpace = HashMap::new();
[INFO] [stderr] 43 | |         map.insert("println", println);
[INFO] [stderr] ...  |
[INFO] [stderr] 46 | |     };
[INFO] [stderr] 47 | | }
[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/main.rs:244:5
[INFO] [stderr]     |
[INFO] [stderr] 244 | /     lazy_static! {
[INFO] [stderr] 245 | |         static ref RE: Regex =
[INFO] [stderr] 246 | |             Regex::new(r##"(\(|#\(|'\(|\)|\[|\]|\{|#\{|\})|[^\s"\)\]\}]+|"([^"\)\]\}]*)""##)
[INFO] [stderr] 247 | |             .unwrap();
[INFO] [stderr] 248 | |     }
[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/main.rs:244:5
[INFO] [stderr]     |
[INFO] [stderr] 244 | /     lazy_static! {
[INFO] [stderr] 245 | |         static ref RE: Regex =
[INFO] [stderr] 246 | |             Regex::new(r##"(\(|#\(|'\(|\)|\[|\]|\{|#\{|\})|[^\s"\)\]\}]+|"([^"\)\]\}]*)""##)
[INFO] [stderr] 247 | |             .unwrap();
[INFO] [stderr] 248 | |     }
[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: method is never used: `to_list`
[INFO] [stderr]   --> src/main.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn to_list(self) -> List {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_empty`
[INFO] [stderr]   --> src/main.rs:80:5
[INFO] [stderr]    |
[INFO] [stderr] 80 |     fn is_empty(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop_front`
[INFO] [stderr]   --> src/main.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn pop_front(&mut self) -> Option<Value> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `vec`
[INFO] [stderr]    --> src/main.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 173 |     vec(Vector),
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `map`
[INFO] [stderr]    --> src/main.rs:174:5
[INFO] [stderr]     |
[INFO] [stderr] 174 |     map(Map),
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `set`
[INFO] [stderr]    --> src/main.rs:175:5
[INFO] [stderr]     |
[INFO] [stderr] 175 |     set(Set),
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `"docker" "inspect" "080f02a449101a22b81dcc3608735a5ef82c12e2067842880aedf22dc935e051"`
[INFO] running `"docker" "rm" "-f" "080f02a449101a22b81dcc3608735a5ef82c12e2067842880aedf22dc935e051"`
[INFO] [stdout] 080f02a449101a22b81dcc3608735a5ef82c12e2067842880aedf22dc935e051
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jaemk/risp:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 8ab88a261b702bd96e075e4fcb557a8cba52025baa245788bbba97806b8149d5
[INFO] running `"docker" "start" "-a" "8ab88a261b702bd96e075e4fcb557a8cba52025baa245788bbba97806b8149d5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/risp-d4d6ee4316158e0f
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "8ab88a261b702bd96e075e4fcb557a8cba52025baa245788bbba97806b8149d5"`
[INFO] running `"docker" "rm" "-f" "8ab88a261b702bd96e075e4fcb557a8cba52025baa245788bbba97806b8149d5"`
[INFO] [stdout] 8ab88a261b702bd96e075e4fcb557a8cba52025baa245788bbba97806b8149d5