[INFO] crate mysql_async 0.21.1 is already in cache
[INFO] checking mysql_async-0.21.1 against master#0cbcb17d3306d6e22eafc2c05ce885db97d0189c for pr-68766
[INFO] extracting crate mysql_async 0.21.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mysql_async 0.21.1 on toolchain 0cbcb17d3306d6e22eafc2c05ce885db97d0189c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mysql_async 0.21.1
[INFO] finished tweaking crates.io crate mysql_async 0.21.1
[INFO] tweaked toml for crates.io crate mysql_async 0.21.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "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] e38eeabea8c9688cf31a45c02d9b3ff558ea20c30951c41cbfc883c302ad32f4
[INFO] running `"docker" "start" "-a" "e38eeabea8c9688cf31a45c02d9b3ff558ea20c30951c41cbfc883c302ad32f4"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]    Compiling lexical-core v0.6.7
[INFO] [stderr]    Compiling lexical v4.2.0
[INFO] [stderr]     Checking crossbeam-utils v0.7.0
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking openssl v0.10.27
[INFO] [stderr]    Compiling tokio-macros v0.2.4
[INFO] [stderr]     Checking backtrace v0.3.42
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]    Compiling thiserror-impl v1.0.10
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking crossbeam-channel v0.4.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking num-complex v0.2.4
[INFO] [stderr]     Checking num-iter v0.1.40
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking twox-hash v1.5.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking thiserror v1.0.10
[INFO] [stderr]     Checking tokio v0.2.11
[INFO] [stderr]     Checking native-tls v0.2.3
[INFO] [stderr]     Checking num-rational v0.2.3
[INFO] [stderr]     Checking bigdecimal v0.1.0
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking rust_decimal v1.2.0
[INFO] [stderr]     Checking mysql_common v0.20.1
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking tokio-tls v0.3.0
[INFO] [stderr]     Checking mysql_async v0.21.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/queryable/mod.rs:66:9
[INFO] [stderr]    |
[INFO] [stderr] 66 | /         (parse_ok_packet(packet, conn_like.get_capabilities()).is_ok()
[INFO] [stderr] 67 | |             && packet.get(0).cloned() == Some(0xFE))
[INFO] [stderr]    | |____________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 66 |         parse_ok_packet(packet, conn_like.get_capabilities()).is_ok()
[INFO] [stderr] 67 |             && packet.get(0).cloned() == Some(0xFE)
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/queryable/mod.rs:66:9
[INFO] [stderr]    |
[INFO] [stderr] 66 | /         (parse_ok_packet(packet, conn_like.get_capabilities()).is_ok()
[INFO] [stderr] 67 | |             && packet.get(0).cloned() == Some(0xFE))
[INFO] [stderr]    | |____________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 66 |         parse_ok_packet(packet, conn_like.get_capabilities()).is_ok()
[INFO] [stderr] 67 |             && packet.get(0).cloned() == Some(0xFE)
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.13s
[INFO] running `"docker" "inspect" "e38eeabea8c9688cf31a45c02d9b3ff558ea20c30951c41cbfc883c302ad32f4"`
[INFO] running `"docker" "rm" "-f" "e38eeabea8c9688cf31a45c02d9b3ff558ea20c30951c41cbfc883c302ad32f4"`
[INFO] [stdout] e38eeabea8c9688cf31a45c02d9b3ff558ea20c30951c41cbfc883c302ad32f4