[INFO] cloning repository https://github.com/rust-clique/clap-md
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-clique/clap-md" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-clique%2Fclap-md", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-clique%2Fclap-md'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f775ec7473f737f5808bb788c6cc0b80bdd8124
[INFO] checking rust-clique/clap-md against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-clique%2Fclap-md" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rust-clique/clap-md 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/rust-clique/clap-md
[INFO] finished tweaking git repo https://github.com/rust-clique/clap-md
[INFO] tweaked toml for git repo https://github.com/rust-clique/clap-md written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rust-clique/clap-md 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]     Updating git repository `https://github.com/kbknapp/clap-rs`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pulldown-cmark-to-cmark v1.1.0
[INFO] [stderr]   Downloaded indexmap v1.0.1
[INFO] [stderr]   Downloaded getopts v0.2.18
[INFO] [stderr]   Downloaded pulldown-cmark v0.1.2
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f567fcbd557556a7506cc51fd2849e2b0fdc2d2c3d273d441002866917850cd6
[INFO] running `Command { std: "docker" "start" "-a" "f567fcbd557556a7506cc51fd2849e2b0fdc2d2c3d273d441002866917850cd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f567fcbd557556a7506cc51fd2849e2b0fdc2d2c3d273d441002866917850cd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f567fcbd557556a7506cc51fd2849e2b0fdc2d2c3d273d441002866917850cd6", kill_on_drop: false }`
[INFO] [stdout] f567fcbd557556a7506cc51fd2849e2b0fdc2d2c3d273d441002866917850cd6
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f67f8583e7fa3d79e11d23a0361adb99a976c7c09d4d931a8b92d0aa5bc4e89
[INFO] running `Command { std: "docker" "start" "-a" "7f67f8583e7fa3d79e11d23a0361adb99a976c7c09d4d931a8b92d0aa5bc4e89", kill_on_drop: false }`
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]     Checking getopts v0.2.18
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking indexmap v1.0.1
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v3.0.0-alpha1 (https://github.com/kbknapp/clap-rs?branch=v3-dev#6a99e638)
[INFO] [stderr]     Checking pulldown-cmark-to-cmark v1.1.0
[INFO] [stderr]     Checking clap-md v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:113:25
[INFO] [stdout]     |
[INFO] [stdout] 113 | ) -> Result<String, Box<::std::error::Error>> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 113 | ) -> Result<String, Box<dyn (::std::error::Error)>> {
[INFO] [stdout]     |                         +++++                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:113:25
[INFO] [stdout]     |
[INFO] [stdout] 113 | ) -> Result<String, Box<::std::error::Error>> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 113 | ) -> Result<String, Box<dyn (::std::error::Error)>> {
[INFO] [stdout]     |                         +++++                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `Command { std: "docker" "inspect" "7f67f8583e7fa3d79e11d23a0361adb99a976c7c09d4d931a8b92d0aa5bc4e89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f67f8583e7fa3d79e11d23a0361adb99a976c7c09d4d931a8b92d0aa5bc4e89", kill_on_drop: false }`
[INFO] [stdout] 7f67f8583e7fa3d79e11d23a0361adb99a976c7c09d4d931a8b92d0aa5bc4e89