[INFO] cloning repository https://github.com/benbeshara/markd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/benbeshara/markd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenbeshara%2Fmarkd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenbeshara%2Fmarkd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 213121cebca1ffb9a2c3272dd50fcc468a62389c
[INFO] checking benbeshara/markd against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenbeshara%2Fmarkd" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/benbeshara/markd on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/benbeshara/markd
[INFO] finished tweaking git repo https://github.com/benbeshara/markd
[INFO] tweaked toml for git repo https://github.com/benbeshara/markd written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/benbeshara/markd 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tiny_http v0.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee861bd5fd49a162db36dcd6adf7f662e32dbd3438a22f50abe9408bad7ee82a
[INFO] running `Command { std: "docker" "start" "-a" "ee861bd5fd49a162db36dcd6adf7f662e32dbd3438a22f50abe9408bad7ee82a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee861bd5fd49a162db36dcd6adf7f662e32dbd3438a22f50abe9408bad7ee82a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee861bd5fd49a162db36dcd6adf7f662e32dbd3438a22f50abe9408bad7ee82a", kill_on_drop: false }`
[INFO] [stdout] ee861bd5fd49a162db36dcd6adf7f662e32dbd3438a22f50abe9408bad7ee82a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79876256eec3d178587f52534ff3ea4ee6ee29550771d38156e93fa1fe815224
[INFO] running `Command { std: "docker" "start" "-a" "79876256eec3d178587f52534ff3ea4ee6ee29550771d38156e93fa1fe815224", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-bidi v0.3.11
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]     Checking chunked_transfer v1.4.1
[INFO] [stderr]     Checking ascii v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]     Checking tiny_http v0.12.0
[INFO] [stderr]     Checking url v2.3.1
[INFO] [stderr]     Checking regex v1.7.1
[INFO] [stderr]     Checking markd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.59s
[INFO] running `Command { std: "docker" "inspect" "79876256eec3d178587f52534ff3ea4ee6ee29550771d38156e93fa1fe815224", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79876256eec3d178587f52534ff3ea4ee6ee29550771d38156e93fa1fe815224", kill_on_drop: false }`
[INFO] [stdout] 79876256eec3d178587f52534ff3ea4ee6ee29550771d38156e93fa1fe815224
[INFO] checking benbeshara/markd against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenbeshara%2Fmarkd" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/benbeshara/markd on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/benbeshara/markd
[INFO] finished tweaking git repo https://github.com/benbeshara/markd
[INFO] tweaked toml for git repo https://github.com/benbeshara/markd written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/benbeshara/markd 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44134e4a6ef6acfd6d314618ca2abf51039ae6f84433b9e282d31e3013b36214
[INFO] running `Command { std: "docker" "start" "-a" "44134e4a6ef6acfd6d314618ca2abf51039ae6f84433b9e282d31e3013b36214", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44134e4a6ef6acfd6d314618ca2abf51039ae6f84433b9e282d31e3013b36214", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44134e4a6ef6acfd6d314618ca2abf51039ae6f84433b9e282d31e3013b36214", kill_on_drop: false }`
[INFO] [stdout] 44134e4a6ef6acfd6d314618ca2abf51039ae6f84433b9e282d31e3013b36214
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5fc23059e84fdab0522f4db911bea6a5897212063dfec79e4dd4b31abf3a4d3c
[INFO] running `Command { std: "docker" "start" "-a" "5fc23059e84fdab0522f4db911bea6a5897212063dfec79e4dd4b31abf3a4d3c", kill_on_drop: false }`
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]     Checking unicode-bidi v0.3.11
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking ascii v1.1.0
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking chunked_transfer v1.4.1
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]     Checking tiny_http v0.12.0
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]     Checking url v2.3.1
[INFO] [stderr]     Checking regex v1.7.1
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.7.1/src/exec.rs:848:13
[INFO] [stdout]     |
[INFO] [stdout] 848 | /             match dfa::Fsm::reverse(
[INFO] [stdout] 849 | |                 &self.ro.dfa_reverse,
[INFO] [stdout] 850 | |                 self.cache.value(),
[INFO] [stdout] 851 | |                 false,
[INFO] [stdout] ...   |
[INFO] [stdout] 862 | |                 Quit => return Some(Quit),
[INFO] [stdout] 863 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `regex` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "5fc23059e84fdab0522f4db911bea6a5897212063dfec79e4dd4b31abf3a4d3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fc23059e84fdab0522f4db911bea6a5897212063dfec79e4dd4b31abf3a4d3c", kill_on_drop: false }`
[INFO] [stdout] 5fc23059e84fdab0522f4db911bea6a5897212063dfec79e4dd4b31abf3a4d3c