[INFO] fetching crate ringstack 0.2.0...
[INFO] checking ringstack-0.2.0 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate ringstack 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate ringstack 0.2.0 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ringstack 0.2.0
[INFO] finished tweaking crates.io crate ringstack 0.2.0
[INFO] tweaked toml for crates.io crate ringstack 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a833f8700d44983fed4725ec2dc30b6034e62448b2cecedca243e8e367062e4
[INFO] running `Command { std: "docker" "start" "-a" "6a833f8700d44983fed4725ec2dc30b6034e62448b2cecedca243e8e367062e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a833f8700d44983fed4725ec2dc30b6034e62448b2cecedca243e8e367062e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a833f8700d44983fed4725ec2dc30b6034e62448b2cecedca243e8e367062e4", kill_on_drop: false }`
[INFO] [stdout] 6a833f8700d44983fed4725ec2dc30b6034e62448b2cecedca243e8e367062e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 304ef4aa1858e8e185a5975ee76b33f5d7778eb66e905e7f1f199c0d2c5bda66
[INFO] running `Command { std: "docker" "start" "-a" "304ef4aa1858e8e185a5975ee76b33f5d7778eb66e905e7f1f199c0d2c5bda66", kill_on_drop: false }`
[INFO] [stderr]     Checking ringstack v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "304ef4aa1858e8e185a5975ee76b33f5d7778eb66e905e7f1f199c0d2c5bda66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "304ef4aa1858e8e185a5975ee76b33f5d7778eb66e905e7f1f199c0d2c5bda66", kill_on_drop: false }`
[INFO] [stdout] 304ef4aa1858e8e185a5975ee76b33f5d7778eb66e905e7f1f199c0d2c5bda66
[INFO] checking ringstack-0.2.0 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate ringstack 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate ringstack 0.2.0 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ringstack 0.2.0
[INFO] finished tweaking crates.io crate ringstack 0.2.0
[INFO] tweaked toml for crates.io crate ringstack 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40b35e831d1a19053f7ae24374ff5bb72c285b33e89169c4b90ee017254a89cc
[INFO] running `Command { std: "docker" "start" "-a" "40b35e831d1a19053f7ae24374ff5bb72c285b33e89169c4b90ee017254a89cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40b35e831d1a19053f7ae24374ff5bb72c285b33e89169c4b90ee017254a89cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40b35e831d1a19053f7ae24374ff5bb72c285b33e89169c4b90ee017254a89cc", kill_on_drop: false }`
[INFO] [stdout] 40b35e831d1a19053f7ae24374ff5bb72c285b33e89169c4b90ee017254a89cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58ebd0fb7ba02b1b23d1c9220c8722ac2060ba1cc2e4c4791ffa4e17223c6e3d
[INFO] running `Command { std: "docker" "start" "-a" "58ebd0fb7ba02b1b23d1c9220c8722ac2060ba1cc2e4c4791ffa4e17223c6e3d", kill_on_drop: false }`
[INFO] [stderr]     Checking ringstack v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "58ebd0fb7ba02b1b23d1c9220c8722ac2060ba1cc2e4c4791ffa4e17223c6e3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58ebd0fb7ba02b1b23d1c9220c8722ac2060ba1cc2e4c4791ffa4e17223c6e3d", kill_on_drop: false }`
[INFO] [stdout] 58ebd0fb7ba02b1b23d1c9220c8722ac2060ba1cc2e4c4791ffa4e17223c6e3d