[INFO] cloning repository https://github.com/trittimo/Flows
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/trittimo/Flows" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrittimo%2FFlows", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrittimo%2FFlows'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e79731c70f7760875f1642a649cce7e39f24dc72
[INFO] checking trittimo/Flows against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrittimo%2FFlows" "/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/trittimo/Flows 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/trittimo/Flows
[INFO] finished tweaking git repo https://github.com/trittimo/Flows
[INFO] tweaked toml for git repo https://github.com/trittimo/Flows written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/trittimo/Flows 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]     Blocking waiting for file lock on package cache
[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] 082eff39ce3bce012239e43885aa71ec165a129775612434a38425ab30e82aae
[INFO] running `Command { std: "docker" "start" "-a" "082eff39ce3bce012239e43885aa71ec165a129775612434a38425ab30e82aae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "082eff39ce3bce012239e43885aa71ec165a129775612434a38425ab30e82aae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "082eff39ce3bce012239e43885aa71ec165a129775612434a38425ab30e82aae", kill_on_drop: false }`
[INFO] [stdout] 082eff39ce3bce012239e43885aa71ec165a129775612434a38425ab30e82aae
[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] 59b9f9552f8e096244fc41affac5ec1c9bb6909c5fbb12f6e904752b22254e91
[INFO] running `Command { std: "docker" "start" "-a" "59b9f9552f8e096244fc41affac5ec1c9bb6909c5fbb12f6e904752b22254e91", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]    Compiling libc v0.2.122
[INFO] [stderr]    Compiling sdl2 v0.35.2
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]    Compiling sdl2-sys v0.35.2
[INFO] [stderr]     Checking new-project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "59b9f9552f8e096244fc41affac5ec1c9bb6909c5fbb12f6e904752b22254e91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59b9f9552f8e096244fc41affac5ec1c9bb6909c5fbb12f6e904752b22254e91", kill_on_drop: false }`
[INFO] [stdout] 59b9f9552f8e096244fc41affac5ec1c9bb6909c5fbb12f6e904752b22254e91
[INFO] checking trittimo/Flows against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrittimo%2FFlows" "/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/trittimo/Flows 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/trittimo/Flows
[INFO] finished tweaking git repo https://github.com/trittimo/Flows
[INFO] tweaked toml for git repo https://github.com/trittimo/Flows written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/trittimo/Flows 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] deff83392ba438d0adbfbb7824b6d409eb11ed784adb4a4c379cda30fe0b0a19
[INFO] running `Command { std: "docker" "start" "-a" "deff83392ba438d0adbfbb7824b6d409eb11ed784adb4a4c379cda30fe0b0a19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "deff83392ba438d0adbfbb7824b6d409eb11ed784adb4a4c379cda30fe0b0a19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "deff83392ba438d0adbfbb7824b6d409eb11ed784adb4a4c379cda30fe0b0a19", kill_on_drop: false }`
[INFO] [stdout] deff83392ba438d0adbfbb7824b6d409eb11ed784adb4a4c379cda30fe0b0a19
[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] 68411aa8e61c982ac0c8566b3754fb90f14797dfcc3eefe46d305ffdc5264cbf
[INFO] running `Command { std: "docker" "start" "-a" "68411aa8e61c982ac0c8566b3754fb90f14797dfcc3eefe46d305ffdc5264cbf", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.122
[INFO] [stderr]    Compiling sdl2 v0.35.2
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]    Compiling sdl2-sys v0.35.2
[INFO] [stderr]     Checking new-project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 23s
[INFO] running `Command { std: "docker" "inspect" "68411aa8e61c982ac0c8566b3754fb90f14797dfcc3eefe46d305ffdc5264cbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68411aa8e61c982ac0c8566b3754fb90f14797dfcc3eefe46d305ffdc5264cbf", kill_on_drop: false }`
[INFO] [stdout] 68411aa8e61c982ac0c8566b3754fb90f14797dfcc3eefe46d305ffdc5264cbf