[INFO] fetching crate mixed_ref 0.1.1...
[INFO] checking mixed_ref-0.1.1 against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] extracting crate mixed_ref 0.1.1 into /workspace/builds/worker-86/source
[INFO] validating manifest of crates.io crate mixed_ref 0.1.1 on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mixed_ref 0.1.1
[INFO] finished tweaking crates.io crate mixed_ref 0.1.1
[INFO] tweaked toml for crates.io crate mixed_ref 0.1.1 written to /workspace/builds/worker-86/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "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-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fa48be3371daa0c0dcecaa9c4035a0cdb7f461c41a967feb1b87c6c2635464c
[INFO] running `Command { std: "docker" "start" "-a" "2fa48be3371daa0c0dcecaa9c4035a0cdb7f461c41a967feb1b87c6c2635464c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fa48be3371daa0c0dcecaa9c4035a0cdb7f461c41a967feb1b87c6c2635464c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fa48be3371daa0c0dcecaa9c4035a0cdb7f461c41a967feb1b87c6c2635464c", kill_on_drop: false }`
[INFO] [stdout] 2fa48be3371daa0c0dcecaa9c4035a0cdb7f461c41a967feb1b87c6c2635464c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91c562a6206fd975463a18dac847844622faa10204fcfe941a57fff0b69d2dc1
[INFO] running `Command { std: "docker" "start" "-a" "91c562a6206fd975463a18dac847844622faa10204fcfe941a57fff0b69d2dc1", kill_on_drop: false }`
[INFO] [stderr]     Checking mixed_ref v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "91c562a6206fd975463a18dac847844622faa10204fcfe941a57fff0b69d2dc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91c562a6206fd975463a18dac847844622faa10204fcfe941a57fff0b69d2dc1", kill_on_drop: false }`
[INFO] [stdout] 91c562a6206fd975463a18dac847844622faa10204fcfe941a57fff0b69d2dc1