[INFO] cloning repository https://github.com/svmnotn/serial-logger [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/svmnotn/serial-logger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvmnotn%2Fserial-logger", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvmnotn%2Fserial-logger'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 513eb185e967486ad024576d101cf65e3e2fa494 [INFO] checking svmnotn/serial-logger against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvmnotn%2Fserial-logger" "/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/svmnotn/serial-logger 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/svmnotn/serial-logger [INFO] finished tweaking git repo https://github.com/svmnotn/serial-logger [INFO] tweaked toml for git repo https://github.com/svmnotn/serial-logger written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/svmnotn/serial-logger 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 libudev v0.3.0 [INFO] [stderr] Downloaded CoreFoundation-sys v0.1.4 [INFO] [stderr] Downloaded bitflags v2.0.2 [INFO] [stderr] Downloaded IOKit-sys v0.1.5 [INFO] [stderr] Downloaded lexopt v0.3.0 [INFO] [stderr] Downloaded mach v0.1.2 [INFO] [stderr] Downloaded serialport v4.2.2 [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] 783d09bdb48c18ac7621f4b720f02c2650566751b492992d2e980fbdc89225be [INFO] running `Command { std: "docker" "start" "-a" "783d09bdb48c18ac7621f4b720f02c2650566751b492992d2e980fbdc89225be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "783d09bdb48c18ac7621f4b720f02c2650566751b492992d2e980fbdc89225be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "783d09bdb48c18ac7621f4b720f02c2650566751b492992d2e980fbdc89225be", kill_on_drop: false }` [INFO] [stdout] 783d09bdb48c18ac7621f4b720f02c2650566751b492992d2e980fbdc89225be [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] df7962feefb5eeb6fad6d554312af41b049ac457ce7c4ae984c77ac8d1122fdf [INFO] running `Command { std: "docker" "start" "-a" "df7962feefb5eeb6fad6d554312af41b049ac457ce7c4ae984c77ac8d1122fdf", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.148 [INFO] [stderr] Compiling pkg-config v0.3.27 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking iana-time-zone v0.1.57 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking bitflags v2.0.2 [INFO] [stderr] Checking lexopt v0.3.0 [INFO] [stderr] Compiling num-traits v0.2.16 [INFO] [stderr] Compiling libudev-sys v0.1.4 [INFO] [stderr] Checking chrono v0.4.34 [INFO] [stderr] Checking nix v0.26.4 [INFO] [stderr] Checking libudev v0.3.0 [INFO] [stderr] Checking serialport v4.2.2 [INFO] [stderr] Checking serial-logger v1.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `flow_control`, `data_bits`, `parity`, and `stop_bits` are never read [INFO] [stdout] --> src/args.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 26 | pub struct Args { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 34 | pub flow_control: FlowControl, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 35 | /// How many data bits [INFO] [stdout] 36 | pub data_bits: DataBits, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 37 | /// Parity checking modes [INFO] [stdout] 38 | pub parity: Parity, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 39 | /// Number of Stop Bits [INFO] [stdout] 40 | pub stop_bits: StopBits, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/error.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | Io(IoError), [INFO] [stdout] | -- ^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 10 | Io(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/error.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | Serial(SerialError), [INFO] [stdout] | ------ ^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 11 | Serial(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/error.rs:12:28 [INFO] [stdout] | [INFO] [stdout] 12 | UnableToParseArguments(ArgsError), [INFO] [stdout] | ---------------------- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 12 | UnableToParseArguments(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/error.rs:13:15 [INFO] [stdout] | [INFO] [stdout] 13 | SendError(SendError), [INFO] [stdout] | --------- ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 13 | SendError(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `flow_control`, `data_bits`, `parity`, and `stop_bits` are never read [INFO] [stdout] --> src/args.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 26 | pub struct Args { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 34 | pub flow_control: FlowControl, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 35 | /// How many data bits [INFO] [stdout] 36 | pub data_bits: DataBits, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 37 | /// Parity checking modes [INFO] [stdout] 38 | pub parity: Parity, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 39 | /// Number of Stop Bits [INFO] [stdout] 40 | pub stop_bits: StopBits, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/error.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | Io(IoError), [INFO] [stdout] | -- ^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 10 | Io(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/error.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | Serial(SerialError), [INFO] [stdout] | ------ ^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 11 | Serial(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/error.rs:12:28 [INFO] [stdout] | [INFO] [stdout] 12 | UnableToParseArguments(ArgsError), [INFO] [stdout] | ---------------------- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 12 | UnableToParseArguments(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/error.rs:13:15 [INFO] [stdout] | [INFO] [stdout] 13 | SendError(SendError), [INFO] [stdout] | --------- ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 13 | SendError(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.03s [INFO] running `Command { std: "docker" "inspect" "df7962feefb5eeb6fad6d554312af41b049ac457ce7c4ae984c77ac8d1122fdf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "df7962feefb5eeb6fad6d554312af41b049ac457ce7c4ae984c77ac8d1122fdf", kill_on_drop: false }` [INFO] [stdout] df7962feefb5eeb6fad6d554312af41b049ac457ce7c4ae984c77ac8d1122fdf [INFO] checking svmnotn/serial-logger against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvmnotn%2Fserial-logger" "/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/svmnotn/serial-logger 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/svmnotn/serial-logger [INFO] finished tweaking git repo https://github.com/svmnotn/serial-logger [INFO] tweaked toml for git repo https://github.com/svmnotn/serial-logger written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/svmnotn/serial-logger 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] a2f9124974341eac3d8e4459a35a251e1501285076d76aececcd59a87659544f [INFO] running `Command { std: "docker" "start" "-a" "a2f9124974341eac3d8e4459a35a251e1501285076d76aececcd59a87659544f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a2f9124974341eac3d8e4459a35a251e1501285076d76aececcd59a87659544f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a2f9124974341eac3d8e4459a35a251e1501285076d76aececcd59a87659544f", kill_on_drop: false }` [INFO] [stdout] a2f9124974341eac3d8e4459a35a251e1501285076d76aececcd59a87659544f [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] 1abcdcc3974eff05cc2256177d140e37d4a17c21a6f7ff463aa7b2d1d3b2864b [INFO] running `Command { std: "docker" "start" "-a" "1abcdcc3974eff05cc2256177d140e37d4a17c21a6f7ff463aa7b2d1d3b2864b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.148 [INFO] [stderr] Compiling pkg-config v0.3.27 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking bitflags v2.0.2 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking iana-time-zone v0.1.57 [INFO] [stderr] Checking lexopt v0.3.0 [INFO] [stderr] Compiling num-traits v0.2.16 [INFO] [stderr] Compiling libudev-sys v0.1.4 [INFO] [stderr] Checking chrono v0.4.34 [INFO] [stderr] Checking nix v0.26.4 [INFO] [stderr] Checking libudev v0.3.0 [INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/libudev-0.3.0/src/enumerator.rs:171:17 [INFO] [stdout] | [INFO] [stdout] 171 | / if !device.is_null() { [INFO] [stdout] 172 | | return Some(::device::from_raw(device)); [INFO] [stdout] 173 | | } [INFO] [stdout] 174 | | else { [INFO] [stdout] 175 | | continue; [INFO] [stdout] 176 | | } [INFO] [stdout] | |_________________^ cannot satisfy `_ -> _` [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 E0284`. [INFO] [stdout] [INFO] [stderr] error: could not compile `libudev` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "1abcdcc3974eff05cc2256177d140e37d4a17c21a6f7ff463aa7b2d1d3b2864b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1abcdcc3974eff05cc2256177d140e37d4a17c21a6f7ff463aa7b2d1d3b2864b", kill_on_drop: false }` [INFO] [stdout] 1abcdcc3974eff05cc2256177d140e37d4a17c21a6f7ff463aa7b2d1d3b2864b