[INFO] fetching crate this 0.3.0...
[INFO] checking this-0.3.0 against try#8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346 for pr-86194
[INFO] extracting crate this 0.3.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate this 0.3.0 on toolchain 8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate this 0.3.0
[INFO] finished tweaking crates.io crate this 0.3.0
[INFO] tweaked toml for crates.io crate this 0.3.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5cf6aa3bd2db4a869f8e3e0be1c1c8b4d39b861514774f6a9cfb3e267363f3ee
[INFO] running `Command { std: "docker" "start" "-a" "5cf6aa3bd2db4a869f8e3e0be1c1c8b4d39b861514774f6a9cfb3e267363f3ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5cf6aa3bd2db4a869f8e3e0be1c1c8b4d39b861514774f6a9cfb3e267363f3ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cf6aa3bd2db4a869f8e3e0be1c1c8b4d39b861514774f6a9cfb3e267363f3ee", kill_on_drop: false }`
[INFO] [stdout] 5cf6aa3bd2db4a869f8e3e0be1c1c8b4d39b861514774f6a9cfb3e267363f3ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d88a13d5dcf0287e6fbfeb645e727a4e8289b11d768f307b07abddb2ab8f7a2
[INFO] running `Command { std: "docker" "start" "-a" "8d88a13d5dcf0287e6fbfeb645e727a4e8289b11d768f307b07abddb2ab8f7a2", kill_on_drop: false }`
[INFO] [stderr]     Checking this v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "8d88a13d5dcf0287e6fbfeb645e727a4e8289b11d768f307b07abddb2ab8f7a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d88a13d5dcf0287e6fbfeb645e727a4e8289b11d768f307b07abddb2ab8f7a2", kill_on_drop: false }`
[INFO] [stdout] 8d88a13d5dcf0287e6fbfeb645e727a4e8289b11d768f307b07abddb2ab8f7a2