[INFO] fetching crate cargo_issue_6504 2.2.2+1...
[INFO] checking cargo_issue_6504-2.2.2+1 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate cargo_issue_6504 2.2.2+1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate cargo_issue_6504 2.2.2+1 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo_issue_6504 2.2.2+1
[INFO] finished tweaking crates.io crate cargo_issue_6504 2.2.2+1
[INFO] tweaked toml for crates.io crate cargo_issue_6504 2.2.2+1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", 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] 1cd767a28e5829da59415f28d6584a745eb2d11d839a7c1a477387f331e4feac
[INFO] running `Command { std: "docker" "start" "-a" "1cd767a28e5829da59415f28d6584a745eb2d11d839a7c1a477387f331e4feac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cd767a28e5829da59415f28d6584a745eb2d11d839a7c1a477387f331e4feac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cd767a28e5829da59415f28d6584a745eb2d11d839a7c1a477387f331e4feac", kill_on_drop: false }`
[INFO] [stdout] 1cd767a28e5829da59415f28d6584a745eb2d11d839a7c1a477387f331e4feac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "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] 487d9aa420726c4e20cf115d94911de58812af0051b05c4d21b823611441c2bf
[INFO] running `Command { std: "docker" "start" "-a" "487d9aa420726c4e20cf115d94911de58812af0051b05c4d21b823611441c2bf", kill_on_drop: false }`
[INFO] [stderr]     Checking cargo_issue_6504 v2.2.2+1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "487d9aa420726c4e20cf115d94911de58812af0051b05c4d21b823611441c2bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "487d9aa420726c4e20cf115d94911de58812af0051b05c4d21b823611441c2bf", kill_on_drop: false }`
[INFO] [stdout] 487d9aa420726c4e20cf115d94911de58812af0051b05c4d21b823611441c2bf