[INFO] crate starlark 0.3.0 is already in cache
[INFO] testing starlark-0.3.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate starlark 0.3.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate starlark 0.3.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate starlark 0.3.0
[INFO] finished tweaking crates.io crate starlark 0.3.0
[INFO] tweaked toml for crates.io crate starlark 0.3.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate starlark 0.3.0 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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 36e4c094f2b4e3e86e1f9758ace81f941b74b7061ef3471da07eea5676a6b033
[INFO] running `"docker" "start" "-a" "36e4c094f2b4e3e86e1f9758ace81f941b74b7061ef3471da07eea5676a6b033"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling serde v1.0.82
[INFO] [stderr]    Compiling byte-tools v0.3.0
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling bit-vec v0.5.0
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling opaque-debug v0.2.1
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]    Compiling lalrpop-util v0.16.2
[INFO] [stderr]    Compiling codemap v0.1.1
[INFO] [stderr]    Compiling linked-hash-map v0.5.1
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling block-padding v0.1.2
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling bit-set v0.5.0
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.1
[INFO] [stderr]    Compiling ena v0.10.1
[INFO] [stderr]    Compiling ascii-canvas v1.0.0
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling codemap-diagnostic v0.1.1
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]    Compiling generic-array v0.12.0
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling block-buffer v0.7.0
[INFO] [stderr]    Compiling digest v0.8.0
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]    Compiling docopt v1.0.2
[INFO] [stderr]    Compiling lalrpop v0.16.2
[INFO] [stderr]    Compiling starlark v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18642:5
[INFO] [stderr]       |
[INFO] [stderr] 18642 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr]       |
[INFO] [stderr]       = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18654:5
[INFO] [stderr]       |
[INFO] [stderr] 18654 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18708:5
[INFO] [stderr]       |
[INFO] [stderr] 18708 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18733:5
[INFO] [stderr]       |
[INFO] [stderr] 18733 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18758:5
[INFO] [stderr]       |
[INFO] [stderr] 18758 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18770:5
[INFO] [stderr]       |
[INFO] [stderr] 18770 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18782:5
[INFO] [stderr]       |
[INFO] [stderr] 18782 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18794:5
[INFO] [stderr]       |
[INFO] [stderr] 18794 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18806:5
[INFO] [stderr]       |
[INFO] [stderr] 18806 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18818:5
[INFO] [stderr]       |
[INFO] [stderr] 18818 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18830:5
[INFO] [stderr]       |
[INFO] [stderr] 18830 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18860:5
[INFO] [stderr]       |
[INFO] [stderr] 18860 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18924:5
[INFO] [stderr]       |
[INFO] [stderr] 18924 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18954:5
[INFO] [stderr]       |
[INFO] [stderr] 18954 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18966:5
[INFO] [stderr]       |
[INFO] [stderr] 18966 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18978:5
[INFO] [stderr]       |
[INFO] [stderr] 18978 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18990:5
[INFO] [stderr]       |
[INFO] [stderr] 18990 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19023:5
[INFO] [stderr]       |
[INFO] [stderr] 19023 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19036:5
[INFO] [stderr]       |
[INFO] [stderr] 19036 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19050:5
[INFO] [stderr]       |
[INFO] [stderr] 19050 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19062:5
[INFO] [stderr]       |
[INFO] [stderr] 19062 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19148:5
[INFO] [stderr]       |
[INFO] [stderr] 19148 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19160:5
[INFO] [stderr]       |
[INFO] [stderr] 19160 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19172:5
[INFO] [stderr]       |
[INFO] [stderr] 19172 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19184:5
[INFO] [stderr]       |
[INFO] [stderr] 19184 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19282:5
[INFO] [stderr]       |
[INFO] [stderr] 19282 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19308:5
[INFO] [stderr]       |
[INFO] [stderr] 19308 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19332:5
[INFO] [stderr]       |
[INFO] [stderr] 19332 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19362:5
[INFO] [stderr]       |
[INFO] [stderr] 19362 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19387:5
[INFO] [stderr]       |
[INFO] [stderr] 19387 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19399:5
[INFO] [stderr]       |
[INFO] [stderr] 19399 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19427:5
[INFO] [stderr]       |
[INFO] [stderr] 19427 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19512:5
[INFO] [stderr]       |
[INFO] [stderr] 19512 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19525:5
[INFO] [stderr]       |
[INFO] [stderr] 19525 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19537:5
[INFO] [stderr]       |
[INFO] [stderr] 19537 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19659:5
[INFO] [stderr]       |
[INFO] [stderr] 19659 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19703:5
[INFO] [stderr]       |
[INFO] [stderr] 19703 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19737:5
[INFO] [stderr]       |
[INFO] [stderr] 19737 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19782:5
[INFO] [stderr]       |
[INFO] [stderr] 19782 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19809:5
[INFO] [stderr]       |
[INFO] [stderr] 19809 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19836:5
[INFO] [stderr]       |
[INFO] [stderr] 19836 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19876:5
[INFO] [stderr]       |
[INFO] [stderr] 19876 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19888:5
[INFO] [stderr]       |
[INFO] [stderr] 19888 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19900:5
[INFO] [stderr]       |
[INFO] [stderr] 19900 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19927:5
[INFO] [stderr]       |
[INFO] [stderr] 19927 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19952:5
[INFO] [stderr]       |
[INFO] [stderr] 19952 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19982:5
[INFO] [stderr]       |
[INFO] [stderr] 19982 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20010:5
[INFO] [stderr]       |
[INFO] [stderr] 20010 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20038:5
[INFO] [stderr]       |
[INFO] [stderr] 20038 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20065:5
[INFO] [stderr]       |
[INFO] [stderr] 20065 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20206:5
[INFO] [stderr]       |
[INFO] [stderr] 20206 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20234:5
[INFO] [stderr]       |
[INFO] [stderr] 20234 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20278:5
[INFO] [stderr]       |
[INFO] [stderr] 20278 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20355:5
[INFO] [stderr]       |
[INFO] [stderr] 20355 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20397:5
[INFO] [stderr]       |
[INFO] [stderr] 20397 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20570:5
[INFO] [stderr]       |
[INFO] [stderr] 20570 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20742:5
[INFO] [stderr]       |
[INFO] [stderr] 20742 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20914:5
[INFO] [stderr]       |
[INFO] [stderr] 20914 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21043:5
[INFO] [stderr]       |
[INFO] [stderr] 21043 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21120:5
[INFO] [stderr]       |
[INFO] [stderr] 21120 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21273:5
[INFO] [stderr]       |
[INFO] [stderr] 21273 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21336:5
[INFO] [stderr]       |
[INFO] [stderr] 21336 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21399:5
[INFO] [stderr]       |
[INFO] [stderr] 21399 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21437:5
[INFO] [stderr]       |
[INFO] [stderr] 21437 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21500:5
[INFO] [stderr]       |
[INFO] [stderr] 21500 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21538:5
[INFO] [stderr]       |
[INFO] [stderr] 21538 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21601:5
[INFO] [stderr]       |
[INFO] [stderr] 21601 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 67 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 29s
[INFO] running `"docker" "inspect" "36e4c094f2b4e3e86e1f9758ace81f941b74b7061ef3471da07eea5676a6b033"`
[INFO] running `"docker" "rm" "-f" "36e4c094f2b4e3e86e1f9758ace81f941b74b7061ef3471da07eea5676a6b033"`
[INFO] [stdout] 36e4c094f2b4e3e86e1f9758ace81f941b74b7061ef3471da07eea5676a6b033
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 62f13142eb57dabe992af57a51956f3edf1838fa0f0d1c3400029f6cd36c180d
[INFO] running `"docker" "start" "-a" "62f13142eb57dabe992af57a51956f3edf1838fa0f0d1c3400029f6cd36c180d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling starlark v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18642:5
[INFO] [stderr]       |
[INFO] [stderr] 18642 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr]       |
[INFO] [stderr]       = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18654:5
[INFO] [stderr]       |
[INFO] [stderr] 18654 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18708:5
[INFO] [stderr]       |
[INFO] [stderr] 18708 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18733:5
[INFO] [stderr]       |
[INFO] [stderr] 18733 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18758:5
[INFO] [stderr]       |
[INFO] [stderr] 18758 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18770:5
[INFO] [stderr]       |
[INFO] [stderr] 18770 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18782:5
[INFO] [stderr]       |
[INFO] [stderr] 18782 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18794:5
[INFO] [stderr]       |
[INFO] [stderr] 18794 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18806:5
[INFO] [stderr]       |
[INFO] [stderr] 18806 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18818:5
[INFO] [stderr]       |
[INFO] [stderr] 18818 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18830:5
[INFO] [stderr]       |
[INFO] [stderr] 18830 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18860:5
[INFO] [stderr]       |
[INFO] [stderr] 18860 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18924:5
[INFO] [stderr]       |
[INFO] [stderr] 18924 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18954:5
[INFO] [stderr]       |
[INFO] [stderr] 18954 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18966:5
[INFO] [stderr]       |
[INFO] [stderr] 18966 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18978:5
[INFO] [stderr]       |
[INFO] [stderr] 18978 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18990:5
[INFO] [stderr]       |
[INFO] [stderr] 18990 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19023:5
[INFO] [stderr]       |
[INFO] [stderr] 19023 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19036:5
[INFO] [stderr]       |
[INFO] [stderr] 19036 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19050:5
[INFO] [stderr]       |
[INFO] [stderr] 19050 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19062:5
[INFO] [stderr]       |
[INFO] [stderr] 19062 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19148:5
[INFO] [stderr]       |
[INFO] [stderr] 19148 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19160:5
[INFO] [stderr]       |
[INFO] [stderr] 19160 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19172:5
[INFO] [stderr]       |
[INFO] [stderr] 19172 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19184:5
[INFO] [stderr]       |
[INFO] [stderr] 19184 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19282:5
[INFO] [stderr]       |
[INFO] [stderr] 19282 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19308:5
[INFO] [stderr]       |
[INFO] [stderr] 19308 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19332:5
[INFO] [stderr]       |
[INFO] [stderr] 19332 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19362:5
[INFO] [stderr]       |
[INFO] [stderr] 19362 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19387:5
[INFO] [stderr]       |
[INFO] [stderr] 19387 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19399:5
[INFO] [stderr]       |
[INFO] [stderr] 19399 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19427:5
[INFO] [stderr]       |
[INFO] [stderr] 19427 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19512:5
[INFO] [stderr]       |
[INFO] [stderr] 19512 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19525:5
[INFO] [stderr]       |
[INFO] [stderr] 19525 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19537:5
[INFO] [stderr]       |
[INFO] [stderr] 19537 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19659:5
[INFO] [stderr]       |
[INFO] [stderr] 19659 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19703:5
[INFO] [stderr]       |
[INFO] [stderr] 19703 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19737:5
[INFO] [stderr]       |
[INFO] [stderr] 19737 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19782:5
[INFO] [stderr]       |
[INFO] [stderr] 19782 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19809:5
[INFO] [stderr]       |
[INFO] [stderr] 19809 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19836:5
[INFO] [stderr]       |
[INFO] [stderr] 19836 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19876:5
[INFO] [stderr]       |
[INFO] [stderr] 19876 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19888:5
[INFO] [stderr]       |
[INFO] [stderr] 19888 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19900:5
[INFO] [stderr]       |
[INFO] [stderr] 19900 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19927:5
[INFO] [stderr]       |
[INFO] [stderr] 19927 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19952:5
[INFO] [stderr]       |
[INFO] [stderr] 19952 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19982:5
[INFO] [stderr]       |
[INFO] [stderr] 19982 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20010:5
[INFO] [stderr]       |
[INFO] [stderr] 20010 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20038:5
[INFO] [stderr]       |
[INFO] [stderr] 20038 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20065:5
[INFO] [stderr]       |
[INFO] [stderr] 20065 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20206:5
[INFO] [stderr]       |
[INFO] [stderr] 20206 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20234:5
[INFO] [stderr]       |
[INFO] [stderr] 20234 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20278:5
[INFO] [stderr]       |
[INFO] [stderr] 20278 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20355:5
[INFO] [stderr]       |
[INFO] [stderr] 20355 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20397:5
[INFO] [stderr]       |
[INFO] [stderr] 20397 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20570:5
[INFO] [stderr]       |
[INFO] [stderr] 20570 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20742:5
[INFO] [stderr]       |
[INFO] [stderr] 20742 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20914:5
[INFO] [stderr]       |
[INFO] [stderr] 20914 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21043:5
[INFO] [stderr]       |
[INFO] [stderr] 21043 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21120:5
[INFO] [stderr]       |
[INFO] [stderr] 21120 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21273:5
[INFO] [stderr]       |
[INFO] [stderr] 21273 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21336:5
[INFO] [stderr]       |
[INFO] [stderr] 21336 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21399:5
[INFO] [stderr]       |
[INFO] [stderr] 21399 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21437:5
[INFO] [stderr]       |
[INFO] [stderr] 21437 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21500:5
[INFO] [stderr]       |
[INFO] [stderr] 21500 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21538:5
[INFO] [stderr]       |
[INFO] [stderr] 21538 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21601:5
[INFO] [stderr]       |
[INFO] [stderr] 21601 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 67 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18642:5
[INFO] [stderr]       |
[INFO] [stderr] 18642 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr]       |
[INFO] [stderr]       = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18654:5
[INFO] [stderr]       |
[INFO] [stderr] 18654 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18708:5
[INFO] [stderr]       |
[INFO] [stderr] 18708 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18733:5
[INFO] [stderr]       |
[INFO] [stderr] 18733 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18758:5
[INFO] [stderr]       |
[INFO] [stderr] 18758 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18770:5
[INFO] [stderr]       |
[INFO] [stderr] 18770 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18782:5
[INFO] [stderr]       |
[INFO] [stderr] 18782 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18794:5
[INFO] [stderr]       |
[INFO] [stderr] 18794 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18806:5
[INFO] [stderr]       |
[INFO] [stderr] 18806 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18818:5
[INFO] [stderr]       |
[INFO] [stderr] 18818 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18830:5
[INFO] [stderr]       |
[INFO] [stderr] 18830 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18860:5
[INFO] [stderr]       |
[INFO] [stderr] 18860 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18924:5
[INFO] [stderr]       |
[INFO] [stderr] 18924 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18954:5
[INFO] [stderr]       |
[INFO] [stderr] 18954 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18966:5
[INFO] [stderr]       |
[INFO] [stderr] 18966 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18978:5
[INFO] [stderr]       |
[INFO] [stderr] 18978 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:18990:5
[INFO] [stderr]       |
[INFO] [stderr] 18990 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19023:5
[INFO] [stderr]       |
[INFO] [stderr] 19023 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19036:5
[INFO] [stderr]       |
[INFO] [stderr] 19036 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19050:5
[INFO] [stderr]       |
[INFO] [stderr] 19050 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19062:5
[INFO] [stderr]       |
[INFO] [stderr] 19062 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19148:5
[INFO] [stderr]       |
[INFO] [stderr] 19148 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19160:5
[INFO] [stderr]       |
[INFO] [stderr] 19160 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19172:5
[INFO] [stderr]       |
[INFO] [stderr] 19172 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19184:5
[INFO] [stderr]       |
[INFO] [stderr] 19184 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19282:5
[INFO] [stderr]       |
[INFO] [stderr] 19282 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19308:5
[INFO] [stderr]       |
[INFO] [stderr] 19308 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19332:5
[INFO] [stderr]       |
[INFO] [stderr] 19332 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19362:5
[INFO] [stderr]       |
[INFO] [stderr] 19362 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19387:5
[INFO] [stderr]       |
[INFO] [stderr] 19387 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19399:5
[INFO] [stderr]       |
[INFO] [stderr] 19399 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19427:5
[INFO] [stderr]       |
[INFO] [stderr] 19427 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19512:5
[INFO] [stderr]       |
[INFO] [stderr] 19512 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19525:5
[INFO] [stderr]       |
[INFO] [stderr] 19525 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19537:5
[INFO] [stderr]       |
[INFO] [stderr] 19537 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19659:5
[INFO] [stderr]       |
[INFO] [stderr] 19659 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19703:5
[INFO] [stderr]       |
[INFO] [stderr] 19703 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19737:5
[INFO] [stderr]       |
[INFO] [stderr] 19737 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19782:5
[INFO] [stderr]       |
[INFO] [stderr] 19782 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19809:5
[INFO] [stderr]       |
[INFO] [stderr] 19809 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19836:5
[INFO] [stderr]       |
[INFO] [stderr] 19836 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19876:5
[INFO] [stderr]       |
[INFO] [stderr] 19876 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19888:5
[INFO] [stderr]       |
[INFO] [stderr] 19888 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19900:5
[INFO] [stderr]       |
[INFO] [stderr] 19900 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19927:5
[INFO] [stderr]       |
[INFO] [stderr] 19927 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19952:5
[INFO] [stderr]       |
[INFO] [stderr] 19952 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:19982:5
[INFO] [stderr]       |
[INFO] [stderr] 19982 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20010:5
[INFO] [stderr]       |
[INFO] [stderr] 20010 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20038:5
[INFO] [stderr]       |
[INFO] [stderr] 20038 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20065:5
[INFO] [stderr]       |
[INFO] [stderr] 20065 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20206:5
[INFO] [stderr]       |
[INFO] [stderr] 20206 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20234:5
[INFO] [stderr]       |
[INFO] [stderr] 20234 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20278:5
[INFO] [stderr]       |
[INFO] [stderr] 20278 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20355:5
[INFO] [stderr]       |
[INFO] [stderr] 20355 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20397:5
[INFO] [stderr]       |
[INFO] [stderr] 20397 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20570:5
[INFO] [stderr]       |
[INFO] [stderr] 20570 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20742:5
[INFO] [stderr]       |
[INFO] [stderr] 20742 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:20914:5
[INFO] [stderr]       |
[INFO] [stderr] 20914 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21043:5
[INFO] [stderr]       |
[INFO] [stderr] 21043 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21120:5
[INFO] [stderr]       |
[INFO] [stderr] 21120 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21273:5
[INFO] [stderr]       |
[INFO] [stderr] 21273 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21336:5
[INFO] [stderr]       |
[INFO] [stderr] 21336 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21399:5
[INFO] [stderr]       |
[INFO] [stderr] 21399 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21437:5
[INFO] [stderr]       |
[INFO] [stderr] 21437 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21500:5
[INFO] [stderr]       |
[INFO] [stderr] 21500 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21538:5
[INFO] [stderr]       |
[INFO] [stderr] 21538 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/starlark-0cb84b539f2f2d12/out/syntax/grammar.rs:21601:5
[INFO] [stderr]       |
[INFO] [stderr] 21601 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `codemap::CodeMap: std::default::Default` is not satisfied
[INFO] [stderr]   --> src/stdlib/inspect.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |             &Default::default(),
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^ the trait `std::default::Default` is not implemented for `codemap::CodeMap`
[INFO] [stderr]    |
[INFO] [stderr]    = note: required because of the requirements on the impl of `std::default::Default` for `std::sync::Mutex<codemap::CodeMap>`
[INFO] [stderr]    = note: required because of the requirements on the impl of `std::default::Default` for `std::sync::Arc<std::sync::Mutex<codemap::CodeMap>>`
[INFO] [stderr]    = note: required by `std::default::Default::default`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 67 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `starlark`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "62f13142eb57dabe992af57a51956f3edf1838fa0f0d1c3400029f6cd36c180d"`
[INFO] running `"docker" "rm" "-f" "62f13142eb57dabe992af57a51956f3edf1838fa0f0d1c3400029f6cd36c180d"`
[INFO] [stdout] 62f13142eb57dabe992af57a51956f3edf1838fa0f0d1c3400029f6cd36c180d