[INFO] cloning repository https://github.com/Logiase/pi-temp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Logiase/pi-temp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLogiase%2Fpi-temp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLogiase%2Fpi-temp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 46a863caf07a6e1bf3bab6d68a1318563f40402e
[INFO] checking Logiase/pi-temp against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLogiase%2Fpi-temp" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Logiase/pi-temp 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/Logiase/pi-temp
[INFO] finished tweaking git repo https://github.com/Logiase/pi-temp
[INFO] tweaked toml for git repo https://github.com/Logiase/pi-temp written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Logiase/pi-temp 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]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded display-interface v0.4.0
[INFO] [stderr]   Downloaded display-interface-i2c v0.4.0
[INFO] [stderr]   Downloaded byte-slice-cast v0.3.5
[INFO] [stderr]   Downloaded display-interface-spi v0.4.0
[INFO] [stderr]   Downloaded nb v1.0.0
[INFO] [stderr]   Downloaded humantime v2.0.1
[INFO] [stderr]   Downloaded embedded-hal v0.2.4
[INFO] [stderr]   Downloaded env_logger v0.8.2
[INFO] [stderr]   Downloaded rppal v0.11.3
[INFO] [stderr]   Downloaded embedded-graphics v0.6.2
[INFO] [stderr]   Downloaded ssd1306 v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ea12846e2b3fda0928185b9d99ce2d477b16e0d7852deb4190aaef17535203b6
[INFO] running `Command { std: "docker" "start" "-a" "ea12846e2b3fda0928185b9d99ce2d477b16e0d7852deb4190aaef17535203b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea12846e2b3fda0928185b9d99ce2d477b16e0d7852deb4190aaef17535203b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea12846e2b3fda0928185b9d99ce2d477b16e0d7852deb4190aaef17535203b6", kill_on_drop: false }`
[INFO] [stdout] ea12846e2b3fda0928185b9d99ce2d477b16e0d7852deb4190aaef17535203b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 4cd1fe90801632990a6492f9b047b7751aa38476a81ca9bb856d76ae1a3163e2
[INFO] running `Command { std: "docker" "start" "-a" "4cd1fe90801632990a6492f9b047b7751aa38476a81ca9bb856d76ae1a3163e2", kill_on_drop: false }`
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking display-interface v0.4.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking byte-slice-cast v0.3.5
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]    Compiling ssd1306 v0.5.0
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.4
[INFO] [stderr]     Checking display-interface-spi v0.4.0
[INFO] [stderr]     Checking display-interface-i2c v0.4.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking embedded-graphics v0.6.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rppal v0.11.3
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking env_logger v0.8.2
[INFO] [stderr]     Checking pi-temp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "4cd1fe90801632990a6492f9b047b7751aa38476a81ca9bb856d76ae1a3163e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cd1fe90801632990a6492f9b047b7751aa38476a81ca9bb856d76ae1a3163e2", kill_on_drop: false }`
[INFO] [stdout] 4cd1fe90801632990a6492f9b047b7751aa38476a81ca9bb856d76ae1a3163e2
[INFO] checking Logiase/pi-temp against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLogiase%2Fpi-temp" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Logiase/pi-temp on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Logiase/pi-temp
[INFO] finished tweaking git repo https://github.com/Logiase/pi-temp
[INFO] tweaked toml for git repo https://github.com/Logiase/pi-temp written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Logiase/pi-temp 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73e90c59c7a7507f4663bfefe71d7819dfea66a31a0fa2e08d357b45bc564c9a
[INFO] running `Command { std: "docker" "start" "-a" "73e90c59c7a7507f4663bfefe71d7819dfea66a31a0fa2e08d357b45bc564c9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73e90c59c7a7507f4663bfefe71d7819dfea66a31a0fa2e08d357b45bc564c9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73e90c59c7a7507f4663bfefe71d7819dfea66a31a0fa2e08d357b45bc564c9a", kill_on_drop: false }`
[INFO] [stdout] 73e90c59c7a7507f4663bfefe71d7819dfea66a31a0fa2e08d357b45bc564c9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6dcb50a0f5a6edd0f24e5cf918ecc72b10c93ba18b1120daee968a5cb73bbd89
[INFO] running `Command { std: "docker" "start" "-a" "6dcb50a0f5a6edd0f24e5cf918ecc72b10c93ba18b1120daee968a5cb73bbd89", kill_on_drop: false }`
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking display-interface v0.4.0
[INFO] [stderr]    Compiling ssd1306 v0.5.0
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking byte-slice-cast v0.3.5
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.4
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking display-interface-i2c v0.4.0
[INFO] [stderr]     Checking display-interface-spi v0.4.0
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking embedded-graphics v0.6.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rppal v0.11.3
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.4.2/src/exec.rs:836:13
[INFO] [stdout]     |
[INFO] [stdout] 836 | /             match dfa::Fsm::reverse(
[INFO] [stdout] 837 | |                 &self.ro.dfa_reverse,
[INFO] [stdout] 838 | |                 self.cache.value(),
[INFO] [stdout] 839 | |                 false,
[INFO] [stdout] ...   |
[INFO] [stdout] 850 | |                 Quit => return Some(Quit),
[INFO] [stdout] 851 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `regex` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "6dcb50a0f5a6edd0f24e5cf918ecc72b10c93ba18b1120daee968a5cb73bbd89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dcb50a0f5a6edd0f24e5cf918ecc72b10c93ba18b1120daee968a5cb73bbd89", kill_on_drop: false }`
[INFO] [stdout] 6dcb50a0f5a6edd0f24e5cf918ecc72b10c93ba18b1120daee968a5cb73bbd89