[INFO] cloning repository https://github.com/crabtw/mdtest
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/crabtw/mdtest" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrabtw%2Fmdtest", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrabtw%2Fmdtest'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9e43192f3c9f4bd0307e42dabed2fb6b792cc732
[INFO] checking crabtw/mdtest against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrabtw%2Fmdtest" "/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/crabtw/mdtest 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/crabtw/mdtest
[INFO] finished tweaking git repo https://github.com/crabtw/mdtest
[INFO] tweaked toml for git repo https://github.com/crabtw/mdtest written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/crabtw/mdtest 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atty v0.2.10
[INFO] [stderr]   Downloaded redox_syscall v0.1.40
[INFO] [stderr]   Downloaded textwrap v0.9.0
[INFO] [stderr]   Downloaded getopts v0.2.17
[INFO] [stderr]   Downloaded fs_extra v1.1.0
[INFO] [stderr]   Downloaded clap v2.31.2
[INFO] [stderr]   Downloaded libc v0.2.42
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bec400690b15a73a4f2bd04c15283d5e71386c9daeeb9f779e102436c7746ba1
[INFO] running `Command { std: "docker" "start" "-a" "bec400690b15a73a4f2bd04c15283d5e71386c9daeeb9f779e102436c7746ba1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bec400690b15a73a4f2bd04c15283d5e71386c9daeeb9f779e102436c7746ba1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bec400690b15a73a4f2bd04c15283d5e71386c9daeeb9f779e102436c7746ba1", kill_on_drop: false }`
[INFO] [stdout] bec400690b15a73a4f2bd04c15283d5e71386c9daeeb9f779e102436c7746ba1
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5aa44f2f0fec6e3246345531134578c34bf310146fced523dd708c7ea0b4973e
[INFO] running `Command { std: "docker" "start" "-a" "5aa44f2f0fec6e3246345531134578c34bf310146fced523dd708c7ea0b4973e", kill_on_drop: false }`
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking getopts v0.2.17
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking fs_extra v1.1.0
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking mdtest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.62s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: fs_extra v1.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "5aa44f2f0fec6e3246345531134578c34bf310146fced523dd708c7ea0b4973e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5aa44f2f0fec6e3246345531134578c34bf310146fced523dd708c7ea0b4973e", kill_on_drop: false }`
[INFO] [stdout] 5aa44f2f0fec6e3246345531134578c34bf310146fced523dd708c7ea0b4973e
[INFO] checking crabtw/mdtest against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrabtw%2Fmdtest" "/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/crabtw/mdtest 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/crabtw/mdtest
[INFO] finished tweaking git repo https://github.com/crabtw/mdtest
[INFO] tweaked toml for git repo https://github.com/crabtw/mdtest written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/crabtw/mdtest 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-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f613e8255df52ce9b7fabc9ad007c9816b9dba442a505ab7ce5d9b9eecbdec0
[INFO] running `Command { std: "docker" "start" "-a" "8f613e8255df52ce9b7fabc9ad007c9816b9dba442a505ab7ce5d9b9eecbdec0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f613e8255df52ce9b7fabc9ad007c9816b9dba442a505ab7ce5d9b9eecbdec0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f613e8255df52ce9b7fabc9ad007c9816b9dba442a505ab7ce5d9b9eecbdec0", kill_on_drop: false }`
[INFO] [stdout] 8f613e8255df52ce9b7fabc9ad007c9816b9dba442a505ab7ce5d9b9eecbdec0
[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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58ed9fd042d6c3787d0af2bccc80de7567a2ea6e7037713d45461f581fd02bc9
[INFO] running `Command { std: "docker" "start" "-a" "58ed9fd042d6c3787d0af2bccc80de7567a2ea6e7037713d45461f581fd02bc9", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking getopts v0.2.17
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking fs_extra v1.1.0
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking mdtest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.74s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: fs_extra v1.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "58ed9fd042d6c3787d0af2bccc80de7567a2ea6e7037713d45461f581fd02bc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58ed9fd042d6c3787d0af2bccc80de7567a2ea6e7037713d45461f581fd02bc9", kill_on_drop: false }`
[INFO] [stdout] 58ed9fd042d6c3787d0af2bccc80de7567a2ea6e7037713d45461f581fd02bc9