[INFO] fetching crate ruby-parser 0.0.0-dev1...
[INFO] testing ruby-parser-0.0.0-dev1 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate ruby-parser 0.0.0-dev1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate ruby-parser 0.0.0-dev1 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ruby-parser 0.0.0-dev1
[INFO] finished tweaking crates.io crate ruby-parser 0.0.0-dev1
[INFO] tweaked toml for crates.io crate ruby-parser 0.0.0-dev1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d29ef0c724c590deaf3db1034dc0bbad3ba46e162c95a9c3a7ecefcae1e17e88
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d29ef0c724c590deaf3db1034dc0bbad3ba46e162c95a9c3a7ecefcae1e17e88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d29ef0c724c590deaf3db1034dc0bbad3ba46e162c95a9c3a7ecefcae1e17e88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d29ef0c724c590deaf3db1034dc0bbad3ba46e162c95a9c3a7ecefcae1e17e88", kill_on_drop: false }`
[INFO] [stdout] d29ef0c724c590deaf3db1034dc0bbad3ba46e162c95a9c3a7ecefcae1e17e88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b99d0841b04b8ba62d2fd31283d02fb8297aa4096162e86153787fd5d1b993b0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b99d0841b04b8ba62d2fd31283d02fb8297aa4096162e86153787fd5d1b993b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling codemap v0.1.3
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling bitvec v0.19.5
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling ruby-parser v0.0.0-dev1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0053]: method `slice_index` has an incompatible type for trait
[INFO] [stdout]    --> src/structs/tracked_location.rs:235:44
[INFO] [stdout]     |
[INFO] [stdout] 235 |     fn slice_index(&self, count: usize) -> Option<usize> {
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^
[INFO] [stdout]     |                                            |
[INFO] [stdout]     |                                            expected enum `Result`, found enum `Option`
[INFO] [stdout]     |                                            help: change the output type to match the trait: `Result<usize, Needed>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected fn pointer `fn(&TrackedLocation<&'a str, X>, _) -> Result<usize, Needed>`
[INFO] [stdout]                found fn pointer `fn(&TrackedLocation<&'a str, X>, _) -> Option<usize>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lexers/comment.rs:49:36
[INFO] [stdout]    |
[INFO] [stdout] 49 |         return Err(nom::Err::Error((i, crate::ErrorKind::Space)));
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lexers/comment.rs:58:36
[INFO] [stdout]    |
[INFO] [stdout] 58 |         return Err(nom::Err::Error((i, crate::ErrorKind::Space)));
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lexers/expression.rs:63:25
[INFO] [stdout]    |
[INFO] [stdout] 63 |     Err(nom::Err::Error((i, crate::ErrorKind::Char)))
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lexers/expression/argument.rs:34:25
[INFO] [stdout]    |
[INFO] [stdout] 34 |     Err(nom::Err::Error((i, crate::ErrorKind::Char)))
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lexers/expression/assignment.rs:71:25
[INFO] [stdout]    |
[INFO] [stdout] 71 |     Err(nom::Err::Error((i, crate::ErrorKind::Char)))
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lexers/expression/binary.rs:44:25
[INFO] [stdout]    |
[INFO] [stdout] 44 |     Err(nom::Err::Error((i, crate::ErrorKind::Char)))
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lexers/expression/block.rs:39:25
[INFO] [stdout]    |
[INFO] [stdout] 39 |     Err(nom::Err::Error((i, crate::ErrorKind::Char)))
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lexers/expression/logical.rs:39:25
[INFO] [stdout]    |
[INFO] [stdout] 39 |     Err(nom::Err::Error((i, crate::ErrorKind::Char)))
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lexers/expression/method.rs:54:25
[INFO] [stdout]    |
[INFO] [stdout] 54 |     Err(nom::Err::Error((i, crate::ErrorKind::Char)))
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lexers/expression/super_.rs:19:25
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Err(nom::Err::Error((i, crate::ErrorKind::Char)))
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lexers/expression/unary.rs:14:25
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Err(nom::Err::Error((i, crate::ErrorKind::Char)))
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lexers/expression/yield_.rs:24:25
[INFO] [stdout]    |
[INFO] [stdout] 24 |     Err(nom::Err::Error((i, crate::ErrorKind::Char)))
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lexers/program.rs:87:36
[INFO] [stdout]    |
[INFO] [stdout] 87 |         return Err(nom::Err::Error((i, nom::error::ErrorKind::Space)));
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lexers/statement.rs:57:25
[INFO] [stdout]    |
[INFO] [stdout] 57 |     Err(nom::Err::Error((i, crate::ErrorKind::Char)))
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lexers/token/literal/array.rs:89:25
[INFO] [stdout]    |
[INFO] [stdout] 89 |     Err(nom::Err::Error((i, crate::ErrorKind::Char)))
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lexers/token/literal/array.rs:93:25
[INFO] [stdout]    |
[INFO] [stdout] 93 |     Err(nom::Err::Error((i, crate::ErrorKind::Char)))
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lexers/token/literal/regex.rs:40:25
[INFO] [stdout]    |
[INFO] [stdout] 40 |     Err(nom::Err::Error((i, crate::ErrorKind::Char)))
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lexers/token/literal/regex.rs:44:25
[INFO] [stdout]    |
[INFO] [stdout] 44 |     Err(nom::Err::Error((i, crate::ErrorKind::Char)))
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lexers/token/literal/string/heredoc.rs:178:36
[INFO] [stdout]     |
[INFO] [stdout] 178 |         return Err(nom::Err::Error((i, crate::ErrorKind::Space)));
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                 found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lexers/token/literal/string/heredoc.rs:195:36
[INFO] [stdout]     |
[INFO] [stdout] 195 |         return Err(nom::Err::Error((i, crate::ErrorKind::Space)));
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                 found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lexers/token/literal/string/heredoc.rs:208:29
[INFO] [stdout]     |
[INFO] [stdout] 208 |         Err(nom::Err::Error((i.clone(), crate::ErrorKind::Char)))
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nom::error::Error`, found tuple
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `nom::error::Error<TrackedLocation<&str, metadata::Metadata<'_>>>`
[INFO] [stdout]                 found tuple `(TrackedLocation<&str, metadata::Metadata<'_>>, nom::error::ErrorKind)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/structs/tracked_location.rs:236:9
[INFO] [stdout]     |
[INFO] [stdout] 235 |     fn slice_index(&self, count: usize) -> Option<usize> {
[INFO] [stdout]     |                                            ------------- expected `Option<usize>` because of return type
[INFO] [stdout] 236 |         self.input.slice_index(count)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `Option`, found enum `Result`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected enum `Option<usize>`
[INFO] [stdout]                found enum `Result<usize, Needed>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 23 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0053, E0308.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0053`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ruby-parser`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "b99d0841b04b8ba62d2fd31283d02fb8297aa4096162e86153787fd5d1b993b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b99d0841b04b8ba62d2fd31283d02fb8297aa4096162e86153787fd5d1b993b0", kill_on_drop: false }`
[INFO] [stdout] b99d0841b04b8ba62d2fd31283d02fb8297aa4096162e86153787fd5d1b993b0