[INFO] fetching crate bound 0.5.0...
[INFO] checking bound-0.5.0 against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543
[INFO] extracting crate bound 0.5.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate bound 0.5.0 on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bound 0.5.0
[INFO] finished tweaking crates.io crate bound 0.5.0
[INFO] tweaked toml for crates.io crate bound 0.5.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] [stderr]       Adding async-lock v2.8.0 (latest: v3.4.0)
[INFO] [stderr]       Adding event-listener v2.5.3 (latest: v5.3.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42010e5c865c592e2a699094531bb4f4e376df21b1e3e8953388c8f67c0beafd
[INFO] running `Command { std: "docker" "start" "-a" "42010e5c865c592e2a699094531bb4f4e376df21b1e3e8953388c8f67c0beafd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42010e5c865c592e2a699094531bb4f4e376df21b1e3e8953388c8f67c0beafd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42010e5c865c592e2a699094531bb4f4e376df21b1e3e8953388c8f67c0beafd", kill_on_drop: false }`
[INFO] [stdout] 42010e5c865c592e2a699094531bb4f4e376df21b1e3e8953388c8f67c0beafd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28b332b97cfa70bcce641a35b4495df20c6dc1d42b9c12a4fbcec693ddc89d0d
[INFO] running `Command { std: "docker" "start" "-a" "28b332b97cfa70bcce641a35b4495df20c6dc1d42b9c12a4fbcec693ddc89d0d", kill_on_drop: false }`
[INFO] [stderr]     Checking bound v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.deref()` on a double reference, which returns `&dyn Debug` instead of dereferencing the inner type
[INFO] [stdout]    --> src/bound.rs:363:24
[INFO] [stdout]     |
[INFO] [stdout] 363 |             .field(self.deref())
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.deref()` on a double reference, which returns `&dyn Debug` instead of dereferencing the inner type
[INFO] [stdout]    --> src/bound.rs:363:24
[INFO] [stdout]     |
[INFO] [stdout] 363 |             .field(self.deref())
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "28b332b97cfa70bcce641a35b4495df20c6dc1d42b9c12a4fbcec693ddc89d0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28b332b97cfa70bcce641a35b4495df20c6dc1d42b9c12a4fbcec693ddc89d0d", kill_on_drop: false }`
[INFO] [stdout] 28b332b97cfa70bcce641a35b4495df20c6dc1d42b9c12a4fbcec693ddc89d0d