[INFO] cloning repository https://github.com/ink-carp/blocks_rain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ink-carp/blocks_rain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fink-carp%2Fblocks_rain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fink-carp%2Fblocks_rain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ba24b8d45667b46716ef21302a78752e784c425e
[INFO] checking ink-carp/blocks_rain against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fink-carp%2Fblocks_rain" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ink-carp/blocks_rain 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/ink-carp/blocks_rain
[INFO] finished tweaking git repo https://github.com/ink-carp/blocks_rain
[INFO] tweaked toml for git repo https://github.com/ink-carp/blocks_rain written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ink-carp/blocks_rain 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded raw_terminal v0.1.0
[INFO] [stderr]   Downloaded pcg_with_xorshift v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d0a0a8cfac88c00cb6aea41c2881377462cdc1dde310ef474f63d44ea4de896c
[INFO] running `Command { std: "docker" "start" "-a" "d0a0a8cfac88c00cb6aea41c2881377462cdc1dde310ef474f63d44ea4de896c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0a0a8cfac88c00cb6aea41c2881377462cdc1dde310ef474f63d44ea4de896c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0a0a8cfac88c00cb6aea41c2881377462cdc1dde310ef474f63d44ea4de896c", kill_on_drop: false }`
[INFO] [stdout] d0a0a8cfac88c00cb6aea41c2881377462cdc1dde310ef474f63d44ea4de896c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 7d2b7dbeccbb68b948792a03c2209e4e44b6221eba877ab8f4fc7adc653cf364
[INFO] running `Command { std: "docker" "start" "-a" "7d2b7dbeccbb68b948792a03c2209e4e44b6221eba877ab8f4fc7adc653cf364", kill_on_drop: false }`
[INFO] [stderr]     Checking pcg_with_xorshift v1.0.0
[INFO] [stderr]     Checking raw_terminal v0.1.0
[INFO] [stderr]     Checking block_rain v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "7d2b7dbeccbb68b948792a03c2209e4e44b6221eba877ab8f4fc7adc653cf364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d2b7dbeccbb68b948792a03c2209e4e44b6221eba877ab8f4fc7adc653cf364", kill_on_drop: false }`
[INFO] [stdout] 7d2b7dbeccbb68b948792a03c2209e4e44b6221eba877ab8f4fc7adc653cf364
[INFO] checking ink-carp/blocks_rain against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fink-carp%2Fblocks_rain" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ink-carp/blocks_rain 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/ink-carp/blocks_rain
[INFO] finished tweaking git repo https://github.com/ink-carp/blocks_rain
[INFO] tweaked toml for git repo https://github.com/ink-carp/blocks_rain written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ink-carp/blocks_rain 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 384c79f107323883d9fc747c9e84a5611b69779661fddf7c412d1fd5a59b1bef
[INFO] running `Command { std: "docker" "start" "-a" "384c79f107323883d9fc747c9e84a5611b69779661fddf7c412d1fd5a59b1bef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "384c79f107323883d9fc747c9e84a5611b69779661fddf7c412d1fd5a59b1bef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "384c79f107323883d9fc747c9e84a5611b69779661fddf7c412d1fd5a59b1bef", kill_on_drop: false }`
[INFO] [stdout] 384c79f107323883d9fc747c9e84a5611b69779661fddf7c412d1fd5a59b1bef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 7c096421e4c457372206d475693621dce18d1785a32496ee71b972b717b434cb
[INFO] running `Command { std: "docker" "start" "-a" "7c096421e4c457372206d475693621dce18d1785a32496ee71b972b717b434cb", kill_on_drop: false }`
[INFO] [stderr]     Checking raw_terminal v0.1.0
[INFO] [stderr]     Checking pcg_with_xorshift v1.0.0
[INFO] [stderr]     Checking block_rain v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "7c096421e4c457372206d475693621dce18d1785a32496ee71b972b717b434cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c096421e4c457372206d475693621dce18d1785a32496ee71b972b717b434cb", kill_on_drop: false }`
[INFO] [stdout] 7c096421e4c457372206d475693621dce18d1785a32496ee71b972b717b434cb