[INFO] fetching crate vcprompt 0.1.0...
[INFO] checking vcprompt-0.1.0 against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] extracting crate vcprompt 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate vcprompt 0.1.0 on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vcprompt 0.1.0
[INFO] finished tweaking crates.io crate vcprompt 0.1.0
[INFO] tweaked toml for crates.io crate vcprompt 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a47690218a5a98086ab34868a058fcb68394191d2ff6338dfae6a825c3d410bd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a47690218a5a98086ab34868a058fcb68394191d2ff6338dfae6a825c3d410bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a47690218a5a98086ab34868a058fcb68394191d2ff6338dfae6a825c3d410bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a47690218a5a98086ab34868a058fcb68394191d2ff6338dfae6a825c3d410bd", kill_on_drop: false }`
[INFO] [stdout] a47690218a5a98086ab34868a058fcb68394191d2ff6338dfae6a825c3d410bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 120ccb5aa35f6a1ed63bd4b87d2430b7b0c93e75dc78681a5deb7e1d92cec8a4
[INFO] running `Command { std: "docker" "start" "-a" "120ccb5aa35f6a1ed63bd4b87d2430b7b0c93e75dc78681a5deb7e1d92cec8a4", kill_on_drop: false }`
[INFO] [stderr]     Checking vcprompt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/util.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 | /         (self.staged == 0 &&
[INFO] [stdout] 44 | |          self.conflicts == 0 &&
[INFO] [stdout] 45 | |          self.changed == 0 &&
[INFO] [stdout] 46 | |          self.untracked == 0)
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 43 |         self.staged == 0 &&
[INFO] [stdout] 44 |          self.conflicts == 0 &&
[INFO] [stdout] 45 |          self.changed == 0 &&
[INFO] [stdout] 46 |          self.untracked == 0
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/util.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 | /         (self.staged == 0 &&
[INFO] [stdout] 44 | |          self.conflicts == 0 &&
[INFO] [stdout] 45 | |          self.changed == 0 &&
[INFO] [stdout] 46 | |          self.untracked == 0)
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 43 |         self.staged == 0 &&
[INFO] [stdout] 44 |          self.conflicts == 0 &&
[INFO] [stdout] 45 |          self.changed == 0 &&
[INFO] [stdout] 46 |          self.untracked == 0
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "120ccb5aa35f6a1ed63bd4b87d2430b7b0c93e75dc78681a5deb7e1d92cec8a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "120ccb5aa35f6a1ed63bd4b87d2430b7b0c93e75dc78681a5deb7e1d92cec8a4", kill_on_drop: false }`
[INFO] [stdout] 120ccb5aa35f6a1ed63bd4b87d2430b7b0c93e75dc78681a5deb7e1d92cec8a4