[INFO] fetching crate mdpreview 0.1.0...
[INFO] checking mdpreview-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate mdpreview 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate mdpreview 0.1.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdpreview 0.1.0
[INFO] finished tweaking crates.io crate mdpreview 0.1.0
[INFO] tweaked toml for crates.io crate mdpreview 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages
[INFO] [stderr]       Adding bitflags v0.8.2 (latest: v2.5.0)
[INFO] [stderr]       Adding open v1.7.1 (latest: v5.1.2)
[INFO] [stderr]       Adding pulldown-cmark v0.0.11 (latest: v0.10.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitflags v0.8.2
[INFO] [stderr]   Downloaded open v1.7.1
[INFO] [stderr]   Downloaded pulldown-cmark v0.0.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc2a335208b150f148530b663577c8456a9e507780cdf1e6571f8949d1a5605b
[INFO] running `Command { std: "docker" "start" "-a" "fc2a335208b150f148530b663577c8456a9e507780cdf1e6571f8949d1a5605b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc2a335208b150f148530b663577c8456a9e507780cdf1e6571f8949d1a5605b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc2a335208b150f148530b663577c8456a9e507780cdf1e6571f8949d1a5605b", kill_on_drop: false }`
[INFO] [stdout] fc2a335208b150f148530b663577c8456a9e507780cdf1e6571f8949d1a5605b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ca88e6b98921168d6deb18dbf2b06d07ec17bd44649d8fb57fb381904030b31
[INFO] running `Command { std: "docker" "start" "-a" "3ca88e6b98921168d6deb18dbf2b06d07ec17bd44649d8fb57fb381904030b31", kill_on_drop: false }`
[INFO] [stderr]    Compiling pulldown-cmark v0.0.11
[INFO] [stderr]     Checking pathdiff v0.2.1
[INFO] [stderr]     Checking bitflags v0.8.2
[INFO] [stderr]     Checking open v1.7.1
[INFO] [stderr]     Checking mdpreview v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "3ca88e6b98921168d6deb18dbf2b06d07ec17bd44649d8fb57fb381904030b31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ca88e6b98921168d6deb18dbf2b06d07ec17bd44649d8fb57fb381904030b31", kill_on_drop: false }`
[INFO] [stdout] 3ca88e6b98921168d6deb18dbf2b06d07ec17bd44649d8fb57fb381904030b31
[INFO] checking mdpreview-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate mdpreview 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate mdpreview 0.1.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdpreview 0.1.0
[INFO] finished tweaking crates.io crate mdpreview 0.1.0
[INFO] tweaked toml for crates.io crate mdpreview 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93271908a891fa3f4834450625320a105b0a8e551b26082239a03df7e329734c
[INFO] running `Command { std: "docker" "start" "-a" "93271908a891fa3f4834450625320a105b0a8e551b26082239a03df7e329734c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93271908a891fa3f4834450625320a105b0a8e551b26082239a03df7e329734c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93271908a891fa3f4834450625320a105b0a8e551b26082239a03df7e329734c", kill_on_drop: false }`
[INFO] [stdout] 93271908a891fa3f4834450625320a105b0a8e551b26082239a03df7e329734c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96bbb11694041ab86a79b5040d264a6935850f7f6496ae19c0f1f87d67f6f72a
[INFO] running `Command { std: "docker" "start" "-a" "96bbb11694041ab86a79b5040d264a6935850f7f6496ae19c0f1f87d67f6f72a", kill_on_drop: false }`
[INFO] [stderr]    Compiling pulldown-cmark v0.0.11
[INFO] [stderr]     Checking bitflags v0.8.2
[INFO] [stderr]     Checking pathdiff v0.2.1
[INFO] [stderr]     Checking open v1.7.1
[INFO] [stderr]     Checking mdpreview v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "96bbb11694041ab86a79b5040d264a6935850f7f6496ae19c0f1f87d67f6f72a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96bbb11694041ab86a79b5040d264a6935850f7f6496ae19c0f1f87d67f6f72a", kill_on_drop: false }`
[INFO] [stdout] 96bbb11694041ab86a79b5040d264a6935850f7f6496ae19c0f1f87d67f6f72a