[INFO] cloning repository https://github.com/MarcusPeixe/ferrugem
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MarcusPeixe/ferrugem" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarcusPeixe%2Fferrugem", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarcusPeixe%2Fferrugem'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 71c47941585aa38b4ee1f217ddeca477bb7e8ad3
[INFO] checking MarcusPeixe/ferrugem against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarcusPeixe%2Fferrugem" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MarcusPeixe/ferrugem 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/MarcusPeixe/ferrugem
[INFO] finished tweaking git repo https://github.com/MarcusPeixe/ferrugem
[INFO] tweaked toml for git repo https://github.com/MarcusPeixe/ferrugem written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/MarcusPeixe/ferrugem 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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2d75870615104dd5c8f3dccf1cfd75282b7a835ea49264a87f9658de1803b307
[INFO] running `Command { std: "docker" "start" "-a" "2d75870615104dd5c8f3dccf1cfd75282b7a835ea49264a87f9658de1803b307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d75870615104dd5c8f3dccf1cfd75282b7a835ea49264a87f9658de1803b307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d75870615104dd5c8f3dccf1cfd75282b7a835ea49264a87f9658de1803b307", kill_on_drop: false }`
[INFO] [stdout] 2d75870615104dd5c8f3dccf1cfd75282b7a835ea49264a87f9658de1803b307
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] c50c3049a710da68afff75fcdc53303bff4a1b700a7746cddf76d5480045ad06
[INFO] running `Command { std: "docker" "start" "-a" "c50c3049a710da68afff75fcdc53303bff4a1b700a7746cddf76d5480045ad06", kill_on_drop: false }`
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking termion v3.0.0
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking ferrugem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.81s
[INFO] running `Command { std: "docker" "inspect" "c50c3049a710da68afff75fcdc53303bff4a1b700a7746cddf76d5480045ad06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c50c3049a710da68afff75fcdc53303bff4a1b700a7746cddf76d5480045ad06", kill_on_drop: false }`
[INFO] [stdout] c50c3049a710da68afff75fcdc53303bff4a1b700a7746cddf76d5480045ad06
[INFO] checking MarcusPeixe/ferrugem against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarcusPeixe%2Fferrugem" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MarcusPeixe/ferrugem 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/MarcusPeixe/ferrugem
[INFO] finished tweaking git repo https://github.com/MarcusPeixe/ferrugem
[INFO] tweaked toml for git repo https://github.com/MarcusPeixe/ferrugem written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/MarcusPeixe/ferrugem 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] bd8a50c56b650d5e4f0fbf3b7b6038af1fc9e8cbd2e054c13abf3c44a77ff55b
[INFO] running `Command { std: "docker" "start" "-a" "bd8a50c56b650d5e4f0fbf3b7b6038af1fc9e8cbd2e054c13abf3c44a77ff55b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd8a50c56b650d5e4f0fbf3b7b6038af1fc9e8cbd2e054c13abf3c44a77ff55b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd8a50c56b650d5e4f0fbf3b7b6038af1fc9e8cbd2e054c13abf3c44a77ff55b", kill_on_drop: false }`
[INFO] [stdout] bd8a50c56b650d5e4f0fbf3b7b6038af1fc9e8cbd2e054c13abf3c44a77ff55b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] b4ddacd647ad7cb8b9de923191fdc3ecb6dc158207a04a9d1e3322ab4682051e
[INFO] running `Command { std: "docker" "start" "-a" "b4ddacd647ad7cb8b9de923191fdc3ecb6dc158207a04a9d1e3322ab4682051e", kill_on_drop: false }`
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking termion v3.0.0
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking ferrugem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.79s
[INFO] running `Command { std: "docker" "inspect" "b4ddacd647ad7cb8b9de923191fdc3ecb6dc158207a04a9d1e3322ab4682051e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4ddacd647ad7cb8b9de923191fdc3ecb6dc158207a04a9d1e3322ab4682051e", kill_on_drop: false }`
[INFO] [stdout] b4ddacd647ad7cb8b9de923191fdc3ecb6dc158207a04a9d1e3322ab4682051e