[INFO] fetching crate libmodbus 1.0.1... [INFO] checking libmodbus-1.0.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate libmodbus 1.0.1 into /workspace/builds/worker-3-tc1/source [INFO] validating manifest of crates.io crate libmodbus 1.0.1 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 libmodbus 1.0.1 [INFO] finished tweaking crates.io crate libmodbus 1.0.1 [INFO] tweaked toml for crates.io crate libmodbus 1.0.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate crates.io crate libmodbus 1.0.1 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 base-x v0.2.7 [INFO] [stderr] Downloaded clang-sys v1.0.1 [INFO] [stderr] Downloaded libmodbus-sys v1.0.0 [INFO] [stderr] Downloaded libloading v0.6.5 [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] f4361c9058253750c0b11366ab86efe5e2c0f325e2cf9286e73a6fc989bc16b1 [INFO] running `Command { std: "docker" "start" "-a" "f4361c9058253750c0b11366ab86efe5e2c0f325e2cf9286e73a6fc989bc16b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f4361c9058253750c0b11366ab86efe5e2c0f325e2cf9286e73a6fc989bc16b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f4361c9058253750c0b11366ab86efe5e2c0f325e2cf9286e73a6fc989bc16b1", kill_on_drop: false }` [INFO] [stdout] f4361c9058253750c0b11366ab86efe5e2c0f325e2cf9286e73a6fc989bc16b1 [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] 3978201c9316b2d206d8aa69c99029e168e8c31c247898d4133e0c1c7c50d814 [INFO] running `Command { std: "docker" "start" "-a" "3978201c9316b2d206d8aa69c99029e168e8c31c247898d4133e0c1c7c50d814", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling nom v5.1.2 [INFO] [stderr] Compiling standback v0.2.11 [INFO] [stderr] Compiling thread_local v1.0.1 [INFO] [stderr] Compiling regex-syntax v0.6.21 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling libloading v0.6.5 [INFO] [stderr] Compiling clang-sys v1.0.1 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling aho-corasick v0.7.15 [INFO] [stderr] Compiling syn v1.0.48 [INFO] [stderr] Compiling termcolor v1.1.0 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling bindgen v0.55.1 [INFO] [stderr] Compiling which v3.1.1 [INFO] [stderr] Compiling pkg-config v0.3.19 [INFO] [stderr] Compiling cc v1.0.61 [INFO] [stderr] Compiling const_fn v0.4.3 [INFO] [stderr] Compiling time v0.2.22 [INFO] [stderr] Compiling regex v1.4.2 [INFO] [stderr] Compiling cexpr v0.4.0 [INFO] [stderr] Compiling env_logger v0.7.1 [INFO] [stderr] Compiling time-macros-impl v0.1.1 [INFO] [stderr] Checking time-macros v0.1.1 [INFO] [stderr] Compiling libmodbus-sys v1.0.0 [INFO] [stderr] Checking libmodbus v1.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Modbus` is imported redundantly [INFO] [stdout] --> examples/unit-test-client.rs:4:17 [INFO] [stdout] | [INFO] [stdout] 3 | use libmodbus::prelude::*; [INFO] [stdout] | --------------------- the item `Modbus` is already imported here [INFO] [stdout] 4 | use libmodbus::{Modbus, ModbusClient, ModbusTCP, ModbusTCPPI, ModbusRTU, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Modbus` is imported redundantly [INFO] [stdout] --> examples/unit-test-server.rs:7:17 [INFO] [stdout] | [INFO] [stdout] 7 | use libmodbus::{Modbus, ModbusMapping, ModbusClient, ModbusServer, ModbusTCP, ModbusTCPPI, ModbusRTU}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 8 | use libmodbus::Exception; [INFO] [stdout] 9 | use libmodbus::prelude::*; [INFO] [stdout] | --------------------- the item `Modbus` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `ModbusMapping` is imported redundantly [INFO] [stdout] --> examples/unit-test-server.rs:7:25 [INFO] [stdout] | [INFO] [stdout] 7 | use libmodbus::{Modbus, ModbusMapping, ModbusClient, ModbusServer, ModbusTCP, ModbusTCPPI, ModbusRTU}; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 8 | use libmodbus::Exception; [INFO] [stdout] 9 | use libmodbus::prelude::*; [INFO] [stdout] | --------------------- the item `ModbusMapping` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.75s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v5.1.2 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "3978201c9316b2d206d8aa69c99029e168e8c31c247898d4133e0c1c7c50d814", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3978201c9316b2d206d8aa69c99029e168e8c31c247898d4133e0c1c7c50d814", kill_on_drop: false }` [INFO] [stdout] 3978201c9316b2d206d8aa69c99029e168e8c31c247898d4133e0c1c7c50d814 [INFO] checking libmodbus-1.0.1 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate libmodbus 1.0.1 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate libmodbus 1.0.1 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 libmodbus 1.0.1 [INFO] finished tweaking crates.io crate libmodbus 1.0.1 [INFO] tweaked toml for crates.io crate libmodbus 1.0.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate crates.io crate libmodbus 1.0.1 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-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 76d42a3ce8fe89bbbbbc8d67f7bcb0f6cda0048233d897840c6703537d4e853a [INFO] running `Command { std: "docker" "start" "-a" "76d42a3ce8fe89bbbbbc8d67f7bcb0f6cda0048233d897840c6703537d4e853a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "76d42a3ce8fe89bbbbbc8d67f7bcb0f6cda0048233d897840c6703537d4e853a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "76d42a3ce8fe89bbbbbc8d67f7bcb0f6cda0048233d897840c6703537d4e853a", kill_on_drop: false }` [INFO] [stdout] 76d42a3ce8fe89bbbbbc8d67f7bcb0f6cda0048233d897840c6703537d4e853a [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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 50404a5d5e96c6f1e170b40f316aeada03fcbbdb9f929e52ed97735356df3c37 [INFO] running `Command { std: "docker" "start" "-a" "50404a5d5e96c6f1e170b40f316aeada03fcbbdb9f929e52ed97735356df3c37", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling nom v5.1.2 [INFO] [stderr] Compiling standback v0.2.11 [INFO] [stderr] Compiling thread_local v1.0.1 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling regex-syntax v0.6.21 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling libloading v0.6.5 [INFO] [stderr] Compiling clang-sys v1.0.1 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling aho-corasick v0.7.15 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling syn v1.0.48 [INFO] [stderr] Compiling termcolor v1.1.0 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling bindgen v0.55.1 [INFO] [stderr] Compiling which v3.1.1 [INFO] [stderr] Compiling const_fn v0.4.3 [INFO] [stderr] Compiling pkg-config v0.3.19 [INFO] [stderr] Compiling cc v1.0.61 [INFO] [stderr] Compiling 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] [stderr] Compiling cexpr v0.4.0 [INFO] [stderr] Compiling time v0.2.22 [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] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "50404a5d5e96c6f1e170b40f316aeada03fcbbdb9f929e52ed97735356df3c37", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "50404a5d5e96c6f1e170b40f316aeada03fcbbdb9f929e52ed97735356df3c37", kill_on_drop: false }` [INFO] [stdout] 50404a5d5e96c6f1e170b40f316aeada03fcbbdb9f929e52ed97735356df3c37