[INFO] crate zypo-lib 0.0.2 is already in cache
[INFO] checking zypo-lib-0.0.2 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate zypo-lib 0.0.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate zypo-lib 0.0.2 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate zypo-lib 0.0.2
[INFO] finished tweaking crates.io crate zypo-lib 0.0.2
[INFO] tweaked toml for crates.io crate zypo-lib 0.0.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 7a8265cc95a35bc451be9e7a3e00ec4123fe9560196da175437f0545ae53765e
[INFO] running `"docker" "start" "-a" "7a8265cc95a35bc451be9e7a3e00ec4123fe9560196da175437f0545ae53765e"`
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling bit-vec v0.5.1
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]     Checking lalrpop-util v0.17.2
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling bit-set v0.5.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling ena v0.13.1
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling sha2 v0.8.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling lalrpop v0.17.2
[INFO] [stderr]    Compiling zypo-lib v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `crate::parser::scope::Scope`
[INFO] [stderr]   --> /opt/rustwide/target/debug/build/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use crate::parser::scope::Scope;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:4452:5
[INFO] [stderr]      |
[INFO] [stderr] 4452 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:4463:5
[INFO] [stderr]      |
[INFO] [stderr] 4463 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:4500:5
[INFO] [stderr]      |
[INFO] [stderr] 4500 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:4522:5
[INFO] [stderr]      |
[INFO] [stderr] 4522 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:4602:5
[INFO] [stderr]      |
[INFO] [stderr] 4602 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:4707:5
[INFO] [stderr]      |
[INFO] [stderr] 4707 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:4797:5
[INFO] [stderr]      |
[INFO] [stderr] 4797 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:4843:5
[INFO] [stderr]      |
[INFO] [stderr] 4843 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:4911:5
[INFO] [stderr]      |
[INFO] [stderr] 4911 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:4957:5
[INFO] [stderr]      |
[INFO] [stderr] 4957 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:5003:5
[INFO] [stderr]      |
[INFO] [stderr] 5003 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:5246:5
[INFO] [stderr]      |
[INFO] [stderr] 5246 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:5281:5
[INFO] [stderr]      |
[INFO] [stderr] 5281 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:5361:5
[INFO] [stderr]      |
[INFO] [stderr] 5361 |     (___0)
[INFO] [stderr]      |     ^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::parser::scope::Scope`
[INFO] [stderr]   --> /opt/rustwide/target/debug/build/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use crate::parser::scope::Scope;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:4452:5
[INFO] [stderr]      |
[INFO] [stderr] 4452 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:4463:5
[INFO] [stderr]      |
[INFO] [stderr] 4463 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:4500:5
[INFO] [stderr]      |
[INFO] [stderr] 4500 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:4522:5
[INFO] [stderr]      |
[INFO] [stderr] 4522 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:4602:5
[INFO] [stderr]      |
[INFO] [stderr] 4602 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:4707:5
[INFO] [stderr]      |
[INFO] [stderr] 4707 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:4797:5
[INFO] [stderr]      |
[INFO] [stderr] 4797 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:4843:5
[INFO] [stderr]      |
[INFO] [stderr] 4843 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:4911:5
[INFO] [stderr]      |
[INFO] [stderr] 4911 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:4957:5
[INFO] [stderr]      |
[INFO] [stderr] 4957 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:5003:5
[INFO] [stderr]      |
[INFO] [stderr] 5003 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:5246:5
[INFO] [stderr]      |
[INFO] [stderr] 5246 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:5281:5
[INFO] [stderr]      |
[INFO] [stderr] 5281 |     (___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/zypo-lib-59d037cbb8a70588/out/parser/grammar.rs:5361:5
[INFO] [stderr]      |
[INFO] [stderr] 5361 |     (___0)
[INFO] [stderr]      |     ^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 59s
[INFO] running `"docker" "inspect" "7a8265cc95a35bc451be9e7a3e00ec4123fe9560196da175437f0545ae53765e"`
[INFO] running `"docker" "rm" "-f" "7a8265cc95a35bc451be9e7a3e00ec4123fe9560196da175437f0545ae53765e"`
[INFO] [stdout] 7a8265cc95a35bc451be9e7a3e00ec4123fe9560196da175437f0545ae53765e