[INFO] updating cached repository https://github.com/vojta7/pra-lang
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2697fac1868e5c4fa518ea514ce93f0ea1160ba6
[INFO] checking vojta7/pra-lang against master#6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257 for pr-70872
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvojta7%2Fpra-lang" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vojta7/pra-lang on toolchain 6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/vojta7/pra-lang
[INFO] finished tweaking git repo https://github.com/vojta7/pra-lang
[INFO] tweaked toml for git repo https://github.com/vojta7/pra-lang written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/vojta7/pra-lang already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "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=forbid" "-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" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ff7ca4cecef41ba1612849c33c58f9ea834d5eb25ce4f17b0f5671a35fbf1704
[INFO] running `"docker" "start" "-a" "ff7ca4cecef41ba1612849c33c58f9ea834d5eb25ce4f17b0f5671a35fbf1704"`
[INFO] [stderr]    Compiling regex-syntax v0.6.14
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling lalrpop-util v0.17.2
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling aho-corasick v0.7.8
[INFO] [stderr]    Compiling ena v0.13.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling lalrpop v0.17.2
[INFO] [stderr]    Compiling pra-lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/pra-lang-94881eef82b94b80/out/parser.rs:10722:5
[INFO] [stderr]       |
[INFO] [stderr] 10722 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:10733:5
[INFO] [stderr]       |
[INFO] [stderr] 10733 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:10744:5
[INFO] [stderr]       |
[INFO] [stderr] 10744 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:10936:5
[INFO] [stderr]       |
[INFO] [stderr] 10936 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:11164:5
[INFO] [stderr]       |
[INFO] [stderr] 11164 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:11194:5
[INFO] [stderr]       |
[INFO] [stderr] 11194 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:11224:5
[INFO] [stderr]       |
[INFO] [stderr] 11224 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:11254:5
[INFO] [stderr]       |
[INFO] [stderr] 11254 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:11355:5
[INFO] [stderr]       |
[INFO] [stderr] 11355 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:11587:5
[INFO] [stderr]       |
[INFO] [stderr] 11587 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:11668:5
[INFO] [stderr]       |
[INFO] [stderr] 11668 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:10722:5
[INFO] [stderr]       |
[INFO] [stderr] 10722 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:10733:5
[INFO] [stderr]       |
[INFO] [stderr] 10733 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:10744:5
[INFO] [stderr]       |
[INFO] [stderr] 10744 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:10936:5
[INFO] [stderr]       |
[INFO] [stderr] 10936 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:11164:5
[INFO] [stderr]       |
[INFO] [stderr] 11164 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:11194:5
[INFO] [stderr]       |
[INFO] [stderr] 11194 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:11224:5
[INFO] [stderr]       |
[INFO] [stderr] 11224 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:11254:5
[INFO] [stderr]       |
[INFO] [stderr] 11254 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:11355:5
[INFO] [stderr]       |
[INFO] [stderr] 11355 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:11587:5
[INFO] [stderr]       |
[INFO] [stderr] 11587 |     (__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/pra-lang-94881eef82b94b80/out/parser.rs:11668:5
[INFO] [stderr]       |
[INFO] [stderr] 11668 |     (__0)
[INFO] [stderr]       |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `"docker" "inspect" "ff7ca4cecef41ba1612849c33c58f9ea834d5eb25ce4f17b0f5671a35fbf1704"`
[INFO] running `"docker" "rm" "-f" "ff7ca4cecef41ba1612849c33c58f9ea834d5eb25ce4f17b0f5671a35fbf1704"`
[INFO] [stdout] ff7ca4cecef41ba1612849c33c58f9ea834d5eb25ce4f17b0f5671a35fbf1704