[INFO] cloning repository https://github.com/admhpr/newtwork
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/admhpr/newtwork" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadmhpr%2Fnewtwork", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadmhpr%2Fnewtwork'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fa3f4f9e50304adfae70f881f81dd63d301f1aac
[INFO] checking admhpr/newtwork against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadmhpr%2Fnewtwork" "/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/admhpr/newtwork 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/admhpr/newtwork
[INFO] finished tweaking git repo https://github.com/admhpr/newtwork
[INFO] tweaked toml for git repo https://github.com/admhpr/newtwork written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/admhpr/newtwork 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 cpp_demangle v0.4.0
[INFO] [stderr]   Downloaded socket2 v0.5.1
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6537aca13c20006aee350799618c2978b31b5c5c93012291cefe90ffaf60fc9
[INFO] running `Command { std: "docker" "start" "-a" "b6537aca13c20006aee350799618c2978b31b5c5c93012291cefe90ffaf60fc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6537aca13c20006aee350799618c2978b31b5c5c93012291cefe90ffaf60fc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6537aca13c20006aee350799618c2978b31b5c5c93012291cefe90ffaf60fc9", kill_on_drop: false }`
[INFO] [stdout] b6537aca13c20006aee350799618c2978b31b5c5c93012291cefe90ffaf60fc9
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d17542cbb79c1f1a52e387bc9e3da9b8a72195db115e3952fd072d0d4ec621de
[INFO] running `Command { std: "docker" "start" "-a" "d17542cbb79c1f1a52e387bc9e3da9b8a72195db115e3952fd072d0d4ec621de", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling cpp_demangle v0.4.0
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking rustc-demangle v0.1.22
[INFO] [stderr]     Checking gimli v0.27.2
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stderr]     Checking object v0.30.3
[INFO] [stderr]     Checking socket2 v0.5.1
[INFO] [stderr]     Checking addr2line v0.19.0
[INFO] [stderr]     Checking newtwork v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.23s
[INFO] running `Command { std: "docker" "inspect" "d17542cbb79c1f1a52e387bc9e3da9b8a72195db115e3952fd072d0d4ec621de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d17542cbb79c1f1a52e387bc9e3da9b8a72195db115e3952fd072d0d4ec621de", kill_on_drop: false }`
[INFO] [stdout] d17542cbb79c1f1a52e387bc9e3da9b8a72195db115e3952fd072d0d4ec621de