[INFO] cloning repository https://github.com/CharlieFunk1/usb_serial_test [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CharlieFunk1/usb_serial_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCharlieFunk1%2Fusb_serial_test", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCharlieFunk1%2Fusb_serial_test'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7f973dfa429e8b6c16fd0f188ac7b0f4ec857ab3 [INFO] checking CharlieFunk1/usb_serial_test against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCharlieFunk1%2Fusb_serial_test" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/CharlieFunk1/usb_serial_test 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/CharlieFunk1/usb_serial_test [INFO] finished tweaking git repo https://github.com/CharlieFunk1/usb_serial_test [INFO] tweaked toml for git repo https://github.com/CharlieFunk1/usb_serial_test written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/CharlieFunk1/usb_serial_test 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 IOKit-sys v0.1.5 [INFO] [stderr] Downloaded mach v0.1.2 [INFO] [stderr] Downloaded CoreFoundation-sys v0.1.4 [INFO] [stderr] Downloaded serialport v4.2.0 [INFO] [stderr] Downloaded libudev v0.3.0 [INFO] [stderr] Downloaded nix v0.24.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 1ddb4caca1d2412968de3aa48e292e198a2d6bab9ec3d6bff2c828ac027b15b6 [INFO] running `Command { std: "docker" "start" "-a" "1ddb4caca1d2412968de3aa48e292e198a2d6bab9ec3d6bff2c828ac027b15b6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1ddb4caca1d2412968de3aa48e292e198a2d6bab9ec3d6bff2c828ac027b15b6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1ddb4caca1d2412968de3aa48e292e198a2d6bab9ec3d6bff2c828ac027b15b6", kill_on_drop: false }` [INFO] [stdout] 1ddb4caca1d2412968de3aa48e292e198a2d6bab9ec3d6bff2c828ac027b15b6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] cfff5c5be9c543974a150a7d29f948024943e639c290231b26f438e25c0f53b1 [INFO] running `Command { std: "docker" "start" "-a" "cfff5c5be9c543974a150a7d29f948024943e639c290231b26f438e25c0f53b1", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling pkg-config v0.3.25 [INFO] [stderr] Compiling libudev-sys v0.1.4 [INFO] [stderr] Checking nix v0.24.1 [INFO] [stderr] Checking libudev v0.3.0 [INFO] [stderr] Checking serialport v4.2.0 [INFO] [stderr] Checking usb_serial_test v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `SerialPortType`, `available_ports` [INFO] [stdout] --> src/main.rs:1:18 [INFO] [stdout] | [INFO] [stdout] 1 | use serialport::{available_ports, SerialPortType, SerialPort}; [INFO] [stdout] | ^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `IoSlice` [INFO] [stdout] --> src/main.rs:2:22 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{Write, IoSlice}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `SerialPortType`, `available_ports` [INFO] [stdout] --> src/main.rs:1:18 [INFO] [stdout] | [INFO] [stdout] 1 | use serialport::{available_ports, SerialPortType, SerialPort}; [INFO] [stdout] | ^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `IoSlice` [INFO] [stdout] --> src/main.rs:2:22 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{Write, IoSlice}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `SerialPort` [INFO] [stdout] --> src/main.rs:1:51 [INFO] [stdout] | [INFO] [stdout] 1 | use serialport::{available_ports, SerialPortType, SerialPort}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `SerialPort` [INFO] [stdout] --> src/main.rs:1:51 [INFO] [stdout] | [INFO] [stdout] 1 | use serialport::{available_ports, SerialPortType, SerialPort}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/main.rs:38:6 [INFO] [stdout] | [INFO] [stdout] 38 | let data = String::new(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/main.rs:38:6 [INFO] [stdout] | [INFO] [stdout] 38 | let data = String::new(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.19s [INFO] running `Command { std: "docker" "inspect" "cfff5c5be9c543974a150a7d29f948024943e639c290231b26f438e25c0f53b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cfff5c5be9c543974a150a7d29f948024943e639c290231b26f438e25c0f53b1", kill_on_drop: false }` [INFO] [stdout] cfff5c5be9c543974a150a7d29f948024943e639c290231b26f438e25c0f53b1 [INFO] checking CharlieFunk1/usb_serial_test against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCharlieFunk1%2Fusb_serial_test" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/CharlieFunk1/usb_serial_test 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/CharlieFunk1/usb_serial_test [INFO] finished tweaking git repo https://github.com/CharlieFunk1/usb_serial_test [INFO] tweaked toml for git repo https://github.com/CharlieFunk1/usb_serial_test written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/CharlieFunk1/usb_serial_test 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a51d80c71b19f162b01f4a90111a1921155395c0a892b724ab6f6c72ae4f06c7 [INFO] running `Command { std: "docker" "start" "-a" "a51d80c71b19f162b01f4a90111a1921155395c0a892b724ab6f6c72ae4f06c7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a51d80c71b19f162b01f4a90111a1921155395c0a892b724ab6f6c72ae4f06c7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a51d80c71b19f162b01f4a90111a1921155395c0a892b724ab6f6c72ae4f06c7", kill_on_drop: false }` [INFO] [stdout] a51d80c71b19f162b01f4a90111a1921155395c0a892b724ab6f6c72ae4f06c7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a420ee92249fa16e49087875446ada0e2d0aa8e15b268720d4f05952c84844da [INFO] running `Command { std: "docker" "start" "-a" "a420ee92249fa16e49087875446ada0e2d0aa8e15b268720d4f05952c84844da", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling pkg-config v0.3.25 [INFO] [stderr] Compiling libudev-sys v0.1.4 [INFO] [stderr] Checking nix v0.24.1 [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" "a420ee92249fa16e49087875446ada0e2d0aa8e15b268720d4f05952c84844da", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a420ee92249fa16e49087875446ada0e2d0aa8e15b268720d4f05952c84844da", kill_on_drop: false }` [INFO] [stdout] a420ee92249fa16e49087875446ada0e2d0aa8e15b268720d4f05952c84844da