[INFO] fetching crate busylight 0.1.0... [INFO] checking busylight-0.1.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate busylight 0.1.0 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate busylight 0.1.0 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 crates.io crate busylight 0.1.0 [INFO] finished tweaking crates.io crate busylight 0.1.0 [INFO] tweaked toml for crates.io crate busylight 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate crates.io crate busylight 0.1.0 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] Downloading crates ... [INFO] [stderr] Downloaded chrono v0.4.7 [INFO] [stderr] Downloaded pkg-config v0.3.15 [INFO] [stderr] Downloaded autocfg v0.1.5 [INFO] [stderr] Downloaded num-iter v0.1.39 [INFO] [stderr] Downloaded cc v1.0.40 [INFO] [stderr] Downloaded num v0.1.42 [INFO] [stderr] Downloaded chrono v0.2.25 [INFO] [stderr] Downloaded regex v1.2.1 [INFO] [stderr] Downloaded regex-syntax v0.6.11 [INFO] [stderr] Downloaded winapi v0.3.7 [INFO] [stderr] Downloaded color_processing v0.3.1 [INFO] [stderr] Downloaded hidapi v1.0.1 [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fcefc3a487c7ff8605fb5826a22169bfe8c21eea43827918f6840efe246dfe7b [INFO] running `Command { std: "docker" "start" "-a" "fcefc3a487c7ff8605fb5826a22169bfe8c21eea43827918f6840efe246dfe7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fcefc3a487c7ff8605fb5826a22169bfe8c21eea43827918f6840efe246dfe7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fcefc3a487c7ff8605fb5826a22169bfe8c21eea43827918f6840efe246dfe7b", kill_on_drop: false }` [INFO] [stdout] fcefc3a487c7ff8605fb5826a22169bfe8c21eea43827918f6840efe246dfe7b [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6ad612d9b4cd5505334d6c3b0c4cd03d34f2f09010c7c8baf79cc1f5cc1cb014 [INFO] running `Command { std: "docker" "start" "-a" "6ad612d9b4cd5505334d6c3b0c4cd03d34f2f09010c7c8baf79cc1f5cc1cb014", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.5 [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling cc v1.0.40 [INFO] [stderr] Compiling pkg-config v0.3.15 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Checking regex-syntax v0.6.11 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Compiling num-iter v0.1.39 [INFO] [stderr] Compiling hidapi v1.0.1 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking chrono v0.4.7 [INFO] [stderr] Checking regex v1.2.1 [INFO] [stderr] Checking num v0.1.42 [INFO] [stderr] Checking chrono v0.2.25 [INFO] [stderr] Checking timer v0.2.0 [INFO] [stderr] Checking color_processing v0.3.1 [INFO] [stderr] Checking busylight v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Positions` [INFO] [stdout] --> examples/ring.rs:3:35 [INFO] [stdout] | [INFO] [stdout] 3 | use busylight::{BusyLight, Tones, Positions}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.92s [INFO] running `Command { std: "docker" "inspect" "6ad612d9b4cd5505334d6c3b0c4cd03d34f2f09010c7c8baf79cc1f5cc1cb014", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6ad612d9b4cd5505334d6c3b0c4cd03d34f2f09010c7c8baf79cc1f5cc1cb014", kill_on_drop: false }` [INFO] [stdout] 6ad612d9b4cd5505334d6c3b0c4cd03d34f2f09010c7c8baf79cc1f5cc1cb014 [INFO] checking busylight-0.1.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate busylight 0.1.0 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate busylight 0.1.0 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 crates.io crate busylight 0.1.0 [INFO] finished tweaking crates.io crate busylight 0.1.0 [INFO] tweaked toml for crates.io crate busylight 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate crates.io crate busylight 0.1.0 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-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d047fe75c0dc8f58005bf8db51e3b2246f6f18e5b71c5db96393b76795cde40b [INFO] running `Command { std: "docker" "start" "-a" "d047fe75c0dc8f58005bf8db51e3b2246f6f18e5b71c5db96393b76795cde40b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d047fe75c0dc8f58005bf8db51e3b2246f6f18e5b71c5db96393b76795cde40b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d047fe75c0dc8f58005bf8db51e3b2246f6f18e5b71c5db96393b76795cde40b", kill_on_drop: false }` [INFO] [stdout] d047fe75c0dc8f58005bf8db51e3b2246f6f18e5b71c5db96393b76795cde40b [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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 92b6568ea88c1ede9303fe17c5b10eefe4f2b462dd5d625c36a06ee85d014ea7 [INFO] running `Command { std: "docker" "start" "-a" "92b6568ea88c1ede9303fe17c5b10eefe4f2b462dd5d625c36a06ee85d014ea7", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.5 [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling pkg-config v0.3.15 [INFO] [stderr] Compiling cc v1.0.40 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Checking regex-syntax v0.6.11 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Compiling num-iter v0.1.39 [INFO] [stderr] Compiling hidapi v1.0.1 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking chrono v0.4.7 [INFO] [stderr] Checking num v0.1.42 [INFO] [stderr] Checking chrono v0.2.25 [INFO] [stderr] Checking regex v1.2.1 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.2.1/src/exec.rs:797:13 [INFO] [stdout] | [INFO] [stdout] 797 | / match dfa::Fsm::reverse( [INFO] [stdout] 798 | | &self.ro.dfa_reverse, [INFO] [stdout] 799 | | self.cache, [INFO] [stdout] 800 | | false, [INFO] [stdout] ... | [INFO] [stdout] 811 | | Quit => return Some(Quit), [INFO] [stdout] 812 | | }; [INFO] [stdout] | |_____________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking timer v0.2.0 [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" "92b6568ea88c1ede9303fe17c5b10eefe4f2b462dd5d625c36a06ee85d014ea7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "92b6568ea88c1ede9303fe17c5b10eefe4f2b462dd5d625c36a06ee85d014ea7", kill_on_drop: false }` [INFO] [stdout] 92b6568ea88c1ede9303fe17c5b10eefe4f2b462dd5d625c36a06ee85d014ea7