[INFO] fetching crate drc 0.1.2...
[INFO] checking drc-0.1.2 against 1.55.0 for beta-1.56-3
[INFO] extracting crate drc 0.1.2 into /workspace/builds/worker-76/source
[INFO] validating manifest of crates.io crate drc 0.1.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate drc 0.1.2
[INFO] finished tweaking crates.io crate drc 0.1.2
[INFO] tweaked toml for crates.io crate drc 0.1.2 written to /workspace/builds/worker-76/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8293faed4781b01fb8e6f45866dc5d6e7c3bec2b8d0f4b1525d9d69df830cc0e
[INFO] running `Command { std: "docker" "start" "-a" "8293faed4781b01fb8e6f45866dc5d6e7c3bec2b8d0f4b1525d9d69df830cc0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8293faed4781b01fb8e6f45866dc5d6e7c3bec2b8d0f4b1525d9d69df830cc0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8293faed4781b01fb8e6f45866dc5d6e7c3bec2b8d0f4b1525d9d69df830cc0e", kill_on_drop: false }`
[INFO] [stdout] 8293faed4781b01fb8e6f45866dc5d6e7c3bec2b8d0f4b1525d9d69df830cc0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c1a2dad4564871379b19a95f6547e5bdbaea62fc8054808db0fbdb46ac22dcf
[INFO] running `Command { std: "docker" "start" "-a" "5c1a2dad4564871379b19a95f6547e5bdbaea62fc8054808db0fbdb46ac22dcf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking drc v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/drc.rs:2006:53
[INFO] [stdout]      |
[INFO] [stdout] 2006 |                 let original_storage_ref = unsafe { (&*original_storage) };
[INFO] [stdout]      |                                                     ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/drc.rs:2007:53
[INFO] [stdout]      |
[INFO] [stdout] 2007 |                 let separate_storage_ref = unsafe { (&*separate_storage) };
[INFO] [stdout]      |                                                     ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `Command { std: "docker" "inspect" "5c1a2dad4564871379b19a95f6547e5bdbaea62fc8054808db0fbdb46ac22dcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c1a2dad4564871379b19a95f6547e5bdbaea62fc8054808db0fbdb46ac22dcf", kill_on_drop: false }`
[INFO] [stdout] 5c1a2dad4564871379b19a95f6547e5bdbaea62fc8054808db0fbdb46ac22dcf
