[INFO] fetching crate downcast 0.11.0...
[INFO] checking downcast-0.11.0 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate downcast 0.11.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate downcast 0.11.0
[INFO] finished tweaking crates.io crate downcast 0.11.0
[INFO] tweaked toml for crates.io crate downcast 0.11.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate downcast 0.11.0 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate downcast 0.11.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a7770657795eef4313d14c7f7db4304a72b9030dd2a17da24afdfc58eedb731
[INFO] running `Command { std: "docker" "start" "-a" "5a7770657795eef4313d14c7f7db4304a72b9030dd2a17da24afdfc58eedb731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a7770657795eef4313d14c7f7db4304a72b9030dd2a17da24afdfc58eedb731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a7770657795eef4313d14c7f7db4304a72b9030dd2a17da24afdfc58eedb731", kill_on_drop: false }`
[INFO] [stdout] 5a7770657795eef4313d14c7f7db4304a72b9030dd2a17da24afdfc58eedb731
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76acdd9d501e76ae707197d27d512d53e89ae2969e1601018daa5b8d6454e987
[INFO] running `Command { std: "docker" "start" "-a" "76acdd9d501e76ae707197d27d512d53e89ae2969e1601018daa5b8d6454e987", kill_on_drop: false }`
[INFO] [stderr]     Checking downcast v0.11.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:449:11
[INFO] [stdout]     |
[INFO] [stdout] 449 | downcast!((dyn Any + Send));
[INFO] [stdout]     |           ^              ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 449 - downcast!((dyn Any + Send));
[INFO] [stdout] 449 + downcast!(dyn Any + Send);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:450:11
[INFO] [stdout]     |
[INFO] [stdout] 450 | downcast!((dyn Any + Sync));
[INFO] [stdout]     |           ^              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 450 - downcast!((dyn Any + Sync));
[INFO] [stdout] 450 + downcast!(dyn Any + Sync);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:449:11
[INFO] [stdout]     |
[INFO] [stdout] 449 | downcast!((dyn Any + Send));
[INFO] [stdout]     |           ^              ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 449 - downcast!((dyn Any + Send));
[INFO] [stdout] 449 + downcast!(dyn Any + Send);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:450:11
[INFO] [stdout]     |
[INFO] [stdout] 450 | downcast!((dyn Any + Sync));
[INFO] [stdout]     |           ^              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 450 - downcast!((dyn Any + Sync));
[INFO] [stdout] 450 + downcast!(dyn Any + Sync);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "76acdd9d501e76ae707197d27d512d53e89ae2969e1601018daa5b8d6454e987", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76acdd9d501e76ae707197d27d512d53e89ae2969e1601018daa5b8d6454e987", kill_on_drop: false }`
[INFO] [stdout] 76acdd9d501e76ae707197d27d512d53e89ae2969e1601018daa5b8d6454e987