[INFO] cloning repository https://github.com/trimorphdev/highlighter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/trimorphdev/highlighter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrimorphdev%2Fhighlighter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrimorphdev%2Fhighlighter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e8eb577fc763491bc58273e11a15b345c921270
[INFO] checking trimorphdev/highlighter against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrimorphdev%2Fhighlighter" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/trimorphdev/highlighter 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 git repo https://github.com/trimorphdev/highlighter
[INFO] finished tweaking git repo https://github.com/trimorphdev/highlighter
[INFO] tweaked toml for git repo https://github.com/trimorphdev/highlighter written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/trimorphdev/highlighter already has a lockfile, it will not be regenerated
[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] 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] 892e1c59f4de361cd9c58fcb9519a2279465720fe52c749ab2b0e4f9e7537419
[INFO] running `Command { std: "docker" "start" "-a" "892e1c59f4de361cd9c58fcb9519a2279465720fe52c749ab2b0e4f9e7537419", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "892e1c59f4de361cd9c58fcb9519a2279465720fe52c749ab2b0e4f9e7537419", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "892e1c59f4de361cd9c58fcb9519a2279465720fe52c749ab2b0e4f9e7537419", kill_on_drop: false }`
[INFO] [stdout] 892e1c59f4de361cd9c58fcb9519a2279465720fe52c749ab2b0e4f9e7537419
[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] 771d6c661a793281f9fe6cfb10f9533b3120c29f75b5cc00511034753bd1d816
[INFO] running `Command { std: "docker" "start" "-a" "771d6c661a793281f9fe6cfb10f9533b3120c29f75b5cc00511034753bd1d816", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking highlighter-core v0.1.1-alpha (/opt/rustwide/workdir/packages/highlighter-core)
[INFO] [stderr]     Checking highlighter-target-html v0.1.1-alpha (/opt/rustwide/workdir/packages/highlighter-target-html)
[INFO] [stderr]     Checking highlighter-languages v0.1.1-alpha (/opt/rustwide/workdir/packages/highlighter-languages)
[INFO] [stderr]     Checking highlighter v0.1.1-alpha (/opt/rustwide/workdir/packages/highlighter)
[INFO] [stderr]     Checking highlighter-examples v0.1.1-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.20s
[INFO] running `Command { std: "docker" "inspect" "771d6c661a793281f9fe6cfb10f9533b3120c29f75b5cc00511034753bd1d816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "771d6c661a793281f9fe6cfb10f9533b3120c29f75b5cc00511034753bd1d816", kill_on_drop: false }`
[INFO] [stdout] 771d6c661a793281f9fe6cfb10f9533b3120c29f75b5cc00511034753bd1d816
[INFO] checking trimorphdev/highlighter against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrimorphdev%2Fhighlighter" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/trimorphdev/highlighter on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/trimorphdev/highlighter
[INFO] finished tweaking git repo https://github.com/trimorphdev/highlighter
[INFO] tweaked toml for git repo https://github.com/trimorphdev/highlighter written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/trimorphdev/highlighter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5912c47280b7741d690b84b894b756ecc57101c9319879a779762f90f92926e
[INFO] running `Command { std: "docker" "start" "-a" "a5912c47280b7741d690b84b894b756ecc57101c9319879a779762f90f92926e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5912c47280b7741d690b84b894b756ecc57101c9319879a779762f90f92926e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5912c47280b7741d690b84b894b756ecc57101c9319879a779762f90f92926e", kill_on_drop: false }`
[INFO] [stdout] a5912c47280b7741d690b84b894b756ecc57101c9319879a779762f90f92926e
[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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1eb0f20bb39d31be1a1101728490518829c910c31965a40546decda35fab3d9d
[INFO] running `Command { std: "docker" "start" "-a" "1eb0f20bb39d31be1a1101728490518829c910c31965a40546decda35fab3d9d", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking highlighter-core v0.1.1-alpha (/opt/rustwide/workdir/packages/highlighter-core)
[INFO] [stderr]     Checking highlighter-languages v0.1.1-alpha (/opt/rustwide/workdir/packages/highlighter-languages)
[INFO] [stderr]     Checking highlighter-target-html v0.1.1-alpha (/opt/rustwide/workdir/packages/highlighter-target-html)
[INFO] [stderr]     Checking highlighter v0.1.1-alpha (/opt/rustwide/workdir/packages/highlighter)
[INFO] [stderr]     Checking highlighter-examples v0.1.1-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.15s
[INFO] running `Command { std: "docker" "inspect" "1eb0f20bb39d31be1a1101728490518829c910c31965a40546decda35fab3d9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eb0f20bb39d31be1a1101728490518829c910c31965a40546decda35fab3d9d", kill_on_drop: false }`
[INFO] [stdout] 1eb0f20bb39d31be1a1101728490518829c910c31965a40546decda35fab3d9d