[INFO] cloning repository https://github.com/Songbird0/json_parser
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Songbird0/json_parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSongbird0%2Fjson_parser"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSongbird0%2Fjson_parser'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 57805891c3e1d38450840bf8a199ff408adbd851
[INFO] testing Songbird0/json_parser against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSongbird0%2Fjson_parser" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Songbird0/json_parser on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Songbird0/json_parser
[INFO] finished tweaking git repo https://github.com/Songbird0/json_parser
[INFO] tweaked toml for git repo https://github.com/Songbird0/json_parser written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Songbird0/json_parser already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] be113ed4bc7e0707bf0e9412b847159e678185259a3b6b6488c3645ca65ecc63
[INFO] running `"docker" "start" "-a" "be113ed4bc7e0707bf0e9412b847159e678185259a3b6b6488c3645ca65ecc63"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling json_parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `nom::is_alphanumeric`
[INFO] [stderr]  --> src/parsers/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use nom::is_alphanumeric;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `entry_list`
[INFO] [stderr]   --> src/ast/entries.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     entry_list: EntryList<K, V>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `key`
[INFO] [stderr]   --> src/ast/entries.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     key: K,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `value`
[INFO] [stderr]   --> src/ast/entries.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     value: Value<V>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `data`
[INFO] [stderr]  --> src/ast/values.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     data: V
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]  --> src/ast/entries.rs:6:23
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub type EntryList<K: Key, V> = Option<Vec<Entry<K, Value<V>>>>;
[INFO] [stderr]   |                       ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stderr] help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub type EntryList<K, V> = Option<Vec<Entry<K, Value<V>>>>;
[INFO] [stderr]   |                    --
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom::is_alphanumeric`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use nom::is_alphanumeric;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.39s
[INFO] running `"docker" "inspect" "be113ed4bc7e0707bf0e9412b847159e678185259a3b6b6488c3645ca65ecc63"`
[INFO] running `"docker" "rm" "-f" "be113ed4bc7e0707bf0e9412b847159e678185259a3b6b6488c3645ca65ecc63"`
[INFO] [stdout] be113ed4bc7e0707bf0e9412b847159e678185259a3b6b6488c3645ca65ecc63
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4a770381c0c4e3d57544bea6cdc3dc1ec8999652980e2ccaef6d13f42292e598
[INFO] running `"docker" "start" "-a" "4a770381c0c4e3d57544bea6cdc3dc1ec8999652980e2ccaef6d13f42292e598"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling json_parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `nom::is_alphanumeric`
[INFO] [stderr]  --> src/parsers/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use nom::is_alphanumeric;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `entry_list`
[INFO] [stderr]   --> src/ast/entries.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     entry_list: EntryList<K, V>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `key`
[INFO] [stderr]   --> src/ast/entries.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     key: K,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `value`
[INFO] [stderr]   --> src/ast/entries.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     value: Value<V>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `data`
[INFO] [stderr]  --> src/ast/values.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     data: V
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]  --> src/ast/entries.rs:6:23
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub type EntryList<K: Key, V> = Option<Vec<Entry<K, Value<V>>>>;
[INFO] [stderr]   |                       ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stderr] help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub type EntryList<K, V> = Option<Vec<Entry<K, Value<V>>>>;
[INFO] [stderr]   |                    --
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom::is_alphanumeric`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use nom::is_alphanumeric;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> tests/empty_object_test.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom::Err`
[INFO] [stderr]  --> tests/empty_object_test.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use nom::Err;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom::verbose_errors::Context`
[INFO] [stderr]  --> tests/empty_object_test.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use nom::verbose_errors::Context;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom::ErrorKind`
[INFO] [stderr]  --> tests/empty_object_test.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use nom::ErrorKind;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom::is_alphanumeric`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use nom::is_alphanumeric;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] note: trace_macro
[INFO] [stderr]   --> tests/dummy_test.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | / named!( get_a<&[u8], Vec<&[u8]>>, dbg!(
[INFO] [stderr] 8  | |   complete!(
[INFO] [stderr] 9  | |     many0!(
[INFO] [stderr] 10 | |       tag!("a")
[INFO] [stderr] 11 | |     )
[INFO] [stderr] 12 | |   )
[INFO] [stderr] 13 | | ));
[INFO] [stderr]    | |___^
[INFO] [stderr]    |
[INFO] [stderr]    = note: expanding `named! { get_a < & [u8], Vec < & [u8] >>, dbg ! (complete ! (many0 ! (tag ! ("a")))) }`
[INFO] [stderr]    = note: to `fn get_a (i : &[u8]) -> $crate :: IResult < &[u8], Vec<&[u8]>, u32 >
[INFO] [stderr]            { dbg ! (i, complete ! (many0 ! (tag ! ("a")))) }`
[INFO] [stderr]    = note: expanding `dbg! { i, complete ! (many0 ! (tag ! ("a"))) }`
[INFO] [stderr]    = note: to `{
[INFO] [stderr]                use $crate :: lib :: std :: result :: Result :: * ; let l = nom_line ! ()
[INFO] [stderr]                ; match complete ! (i, many0 ! (tag ! ("a")))
[INFO] [stderr]                {
[INFO] [stderr]                    Err(e) =>
[INFO] [stderr]                    {
[INFO] [stderr]                        nom_println !
[INFO] [stderr]                        ("Err({:?}) at l.{} by ' {} '", e, l, nom_stringify !
[INFO] [stderr]                         (complete ! (many0 ! (tag ! ("a"))))) ; Err(e)
[INFO] [stderr]                    }, a => a,
[INFO] [stderr]                }
[INFO] [stderr]            }`
[INFO] [stderr]    = note: expanding `nom_line! {  }`
[INFO] [stderr]    = note: to `line ! ()`
[INFO] [stderr]    = note: expanding `complete! { i, many0 ! (tag ! ("a")) }`
[INFO] [stderr]    = note: to `{
[INFO] [stderr]                use $crate :: lib :: std :: result :: Result :: * ; use $crate ::
[INFO] [stderr]                { Err, ErrorKind } ; let i_ = i . clone() ; match many0 !
[INFO] [stderr]                (i_, tag ! ("a"))
[INFO] [stderr]                {
[INFO] [stderr]                    Err(Err :: Incomplete(_)) =>
[INFO] [stderr]                    {
[INFO] [stderr]                        Err(Err ::
[INFO] [stderr]                            Error(error_position ! (i, ErrorKind :: Complete :: < u32 >)))
[INFO] [stderr]                    }, rest => rest
[INFO] [stderr]                }
[INFO] [stderr]            }`
[INFO] [stderr]    = note: expanding `many0! { i_, tag ! ("a") }`
[INFO] [stderr]    = note: to `{
[INFO] [stderr]                use $crate :: lib :: std :: result :: Result :: * ; use $crate ::
[INFO] [stderr]                { Err, AtEof } ; let ret ; let mut res = $crate :: lib :: std :: vec ::
[INFO] [stderr]                Vec :: new() ; let mut input = i_ . clone() ; loop
[INFO] [stderr]                {
[INFO] [stderr]                    let input_ = input . clone() ; match tag ! (input_, "a")
[INFO] [stderr]                    {
[INFO] [stderr]                        Ok((i, o)) =>
[INFO] [stderr]                        {
[INFO] [stderr]                            if i == input
[INFO] [stderr]                            {
[INFO] [stderr]                                if i . at_eof() { ret = Ok((input, res)) ; } else
[INFO] [stderr]                                {
[INFO] [stderr]                                    ret =
[INFO] [stderr]                                    Err(Err ::
[INFO] [stderr]                                        Error(error_position !
[INFO] [stderr]                                              (input, $crate :: ErrorKind :: Many0))) ;
[INFO] [stderr]                                } break ;
[INFO] [stderr]                            } res . push(o) ; input = i ;
[INFO] [stderr]                        }, Err(Err :: Error(_)) => { ret = Ok((input, res)) ; break ; },
[INFO] [stderr]                        Err(e) => { ret = Err(e) ; break ; },
[INFO] [stderr]                    }
[INFO] [stderr]                } ret
[INFO] [stderr]            }`
[INFO] [stderr]    = note: expanding `tag! { input_, "a" }`
[INFO] [stderr]    = note: to `{
[INFO] [stderr]                use $crate :: lib :: std :: result :: Result :: * ; use $crate ::
[INFO] [stderr]                { Err, Needed, IResult, ErrorKind } ; use $crate ::
[INFO] [stderr]                { Compare, CompareResult, InputLength, need_more, InputTake } ; let res :
[INFO] [stderr]                IResult < _, _ > = match(input_) . compare("a")
[INFO] [stderr]                {
[INFO] [stderr]                    CompareResult :: Ok =>
[INFO] [stderr]                    { let blen = "a" . input_len() ; Ok(input_ . take_split(blen)) },
[INFO] [stderr]                    CompareResult :: Incomplete =>
[INFO] [stderr]                    { need_more(input_, Needed :: Size("a" . input_len())) },
[INFO] [stderr]                    CompareResult :: Error =>
[INFO] [stderr]                    {
[INFO] [stderr]                        let e : ErrorKind < u32 > = ErrorKind :: Tag ;
[INFO] [stderr]                        Err(Err :: Error($crate :: Context :: Code(input_, e)))
[INFO] [stderr]                    }
[INFO] [stderr]                } ; res
[INFO] [stderr]            }`
[INFO] [stderr]    = note: expanding `error_position! { input, $crate :: ErrorKind :: Many0 }`
[INFO] [stderr]    = note: to `{ $crate :: Context :: Code(input, ::nom::ErrorKind::Many0) }`
[INFO] [stderr]    = note: expanding `error_position! { i, ErrorKind :: Complete :: < u32 > }`
[INFO] [stderr]    = note: to `{ $crate :: Context :: Code(i, ErrorKind::Complete::<u32>) }`
[INFO] [stderr]    = note: expanding `nom_println! { "Err({:?}) at l.{} by ' {} '", e, l, nom_stringify !
[INFO] [stderr]            (complete ! (many0 ! (tag ! ("a")))) }`
[INFO] [stderr]    = note: to `println !
[INFO] [stderr]            ("Err({:?}) at l.{} by ' {} '", e, l, nom_stringify !
[INFO] [stderr]             (complete ! (many0 ! (tag ! ("a")))))`
[INFO] [stderr]    = note: expanding `println! { "Err({:?}) at l.{} by ' {} '", e, l, nom_stringify !
[INFO] [stderr]            (complete ! (many0 ! (tag ! ("a")))) }`
[INFO] [stderr]    = note: to `{
[INFO] [stderr]                $crate :: io ::
[INFO] [stderr]                _print($crate :: format_args_nl !
[INFO] [stderr]                       ("Err({:?}) at l.{} by ' {} '", e, l, nom_stringify !
[INFO] [stderr]                        (complete ! (many0 ! (tag ! ("a")))))) ;
[INFO] [stderr]            }`
[INFO] [stderr]    = note: expanding `nom_stringify! { complete ! (many0 ! (tag ! ("a"))) }`
[INFO] [stderr]    = note: to `stringify ! (complete ! (many0 ! (tag ! ("a"))))`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> tests/dummy_test.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(trace_macros)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom::is_alphanumeric`
[INFO] [stderr]  --> src/parsers/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use nom::is_alphanumeric;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `json_parser`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: field is never read: `entry_list`
[INFO] [stderr]   --> src/ast/entries.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     entry_list: EntryList<K, V>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `key`
[INFO] [stderr]   --> src/ast/entries.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     key: K,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `value`
[INFO] [stderr]   --> src/ast/entries.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     value: Value<V>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `data`
[INFO] [stderr]  --> src/ast/values.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     data: V
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]  --> src/ast/entries.rs:6:23
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub type EntryList<K: Key, V> = Option<Vec<Entry<K, Value<V>>>>;
[INFO] [stderr]   |                       ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stderr] help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub type EntryList<K, V> = Option<Vec<Entry<K, Value<V>>>>;
[INFO] [stderr]   |                    --
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "4a770381c0c4e3d57544bea6cdc3dc1ec8999652980e2ccaef6d13f42292e598"`
[INFO] running `"docker" "rm" "-f" "4a770381c0c4e3d57544bea6cdc3dc1ec8999652980e2ccaef6d13f42292e598"`
[INFO] [stdout] 4a770381c0c4e3d57544bea6cdc3dc1ec8999652980e2ccaef6d13f42292e598