[INFO] fetching crate nrfdfu 0.1.3... [INFO] checking nrfdfu-0.1.3 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate nrfdfu 0.1.3 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate nrfdfu 0.1.3 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 nrfdfu 0.1.3 [INFO] finished tweaking crates.io crate nrfdfu 0.1.3 [INFO] tweaked toml for crates.io crate nrfdfu 0.1.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate crates.io crate nrfdfu 0.1.3 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 cpufeatures v0.1.4 [INFO] [stderr] Downloaded expect-test v1.1.0 [INFO] [stderr] Downloaded dissimilar v1.0.2 [INFO] [stderr] Downloaded object v0.25.3 [INFO] [stderr] Downloaded ferrous-serialport v4.0.2 [INFO] [stderr] Downloaded nix v0.16.1 [INFO] [stderr] Downloaded libudev v0.2.0 [INFO] [stderr] Downloaded leb128 v0.2.4 [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] 9808f041fb250cac294a272845940eba1cb0f37d2d2ea34ae7354e12e12f8a81 [INFO] running `Command { std: "docker" "start" "-a" "9808f041fb250cac294a272845940eba1cb0f37d2d2ea34ae7354e12e12f8a81", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9808f041fb250cac294a272845940eba1cb0f37d2d2ea34ae7354e12e12f8a81", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9808f041fb250cac294a272845940eba1cb0f37d2d2ea34ae7354e12e12f8a81", kill_on_drop: false }` [INFO] [stdout] 9808f041fb250cac294a272845940eba1cb0f37d2d2ea34ae7354e12e12f8a81 [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] bb92f4bdfc9799ecd24c45e3c81a7edc3288587ad84f845239ea4bb0ad1d00d4 [INFO] running `Command { std: "docker" "start" "-a" "bb92f4bdfc9799ecd24c45e3c81a7edc3288587ad84f845239ea4bb0ad1d00d4", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling nix v0.16.1 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling crc32fast v1.2.1 [INFO] [stderr] Checking cpufeatures v0.1.4 [INFO] [stderr] Checking leb128 v0.2.4 [INFO] [stderr] Compiling libudev-sys v0.1.4 [INFO] [stderr] Checking once_cell v1.7.2 [INFO] [stderr] Checking dissimilar v1.0.2 [INFO] [stderr] Checking expect-test v1.1.0 [INFO] [stderr] Compiling generic-array v0.14.4 [INFO] [stderr] Checking object v0.25.3 [INFO] [stderr] Checking block-buffer v0.9.0 [INFO] [stderr] Checking digest v0.9.0 [INFO] [stderr] Checking sha2 v0.9.5 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking env_logger v0.9.0 [INFO] [stderr] Checking libudev v0.2.0 [INFO] [stderr] Checking ferrous-serialport v4.0.2 [INFO] [stderr] Checking nrfdfu v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `part`, `variant`, `rom_size`, `ram_size`, and `rom_page_size` are never read [INFO] [stdout] --> src/messages.rs:181:5 [INFO] [stdout] | [INFO] [stdout] 179 | pub struct HardwareVersionResponse { [INFO] [stdout] | ----------------------- fields in this struct [INFO] [stdout] 180 | // See FICR register docs [INFO] [stdout] 181 | part: u32, [INFO] [stdout] | ^^^^ [INFO] [stdout] 182 | variant: u32, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 183 | rom_size: u32, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 184 | ram_size: u32, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 185 | rom_page_size: u32, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `HardwareVersionResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/messages.rs:213:25 [INFO] [stdout] | [INFO] [stdout] 213 | pub struct PingResponse(pub u8); [INFO] [stdout] | ------------ ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `PingResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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] 213 | pub struct PingResponse(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `offset` and `crc` are never read [INFO] [stdout] --> src/messages.rs:237:9 [INFO] [stdout] | [INFO] [stdout] 235 | pub struct SelectResponse { [INFO] [stdout] | -------------- fields in this struct [INFO] [stdout] 236 | pub max_size: u32, [INFO] [stdout] 237 | pub offset: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 238 | pub crc: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `SelectResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `offset` is never read [INFO] [stdout] --> src/messages.rs:369:9 [INFO] [stdout] | [INFO] [stdout] 368 | pub struct CrcResponse { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 369 | pub offset: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `CrcResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `part`, `variant`, `rom_size`, `ram_size`, and `rom_page_size` are never read [INFO] [stdout] --> src/messages.rs:181:5 [INFO] [stdout] | [INFO] [stdout] 179 | pub struct HardwareVersionResponse { [INFO] [stdout] | ----------------------- fields in this struct [INFO] [stdout] 180 | // See FICR register docs [INFO] [stdout] 181 | part: u32, [INFO] [stdout] | ^^^^ [INFO] [stdout] 182 | variant: u32, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 183 | rom_size: u32, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 184 | ram_size: u32, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 185 | rom_page_size: u32, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `HardwareVersionResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/messages.rs:213:25 [INFO] [stdout] | [INFO] [stdout] 213 | pub struct PingResponse(pub u8); [INFO] [stdout] | ------------ ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `PingResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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] 213 | pub struct PingResponse(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `offset` and `crc` are never read [INFO] [stdout] --> src/messages.rs:237:9 [INFO] [stdout] | [INFO] [stdout] 235 | pub struct SelectResponse { [INFO] [stdout] | -------------- fields in this struct [INFO] [stdout] 236 | pub max_size: u32, [INFO] [stdout] 237 | pub offset: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 238 | pub crc: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `SelectResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `offset` is never read [INFO] [stdout] --> src/messages.rs:369:9 [INFO] [stdout] | [INFO] [stdout] 368 | pub struct CrcResponse { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 369 | pub offset: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `CrcResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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 3.07s [INFO] running `Command { std: "docker" "inspect" "bb92f4bdfc9799ecd24c45e3c81a7edc3288587ad84f845239ea4bb0ad1d00d4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bb92f4bdfc9799ecd24c45e3c81a7edc3288587ad84f845239ea4bb0ad1d00d4", kill_on_drop: false }` [INFO] [stdout] bb92f4bdfc9799ecd24c45e3c81a7edc3288587ad84f845239ea4bb0ad1d00d4 [INFO] checking nrfdfu-0.1.3 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate nrfdfu 0.1.3 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate nrfdfu 0.1.3 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 nrfdfu 0.1.3 [INFO] finished tweaking crates.io crate nrfdfu 0.1.3 [INFO] tweaked toml for crates.io crate nrfdfu 0.1.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate crates.io crate nrfdfu 0.1.3 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] d47dffbd28a37ca05c87954b1269e855e0a864449524606f0fbaaaad3b8ad1f2 [INFO] running `Command { std: "docker" "start" "-a" "d47dffbd28a37ca05c87954b1269e855e0a864449524606f0fbaaaad3b8ad1f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d47dffbd28a37ca05c87954b1269e855e0a864449524606f0fbaaaad3b8ad1f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d47dffbd28a37ca05c87954b1269e855e0a864449524606f0fbaaaad3b8ad1f2", kill_on_drop: false }` [INFO] [stdout] d47dffbd28a37ca05c87954b1269e855e0a864449524606f0fbaaaad3b8ad1f2 [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] 4393aa85194e03b8bb5a554a9638c042738770d2bfb26083103d1da0dfa6e1a1 [INFO] running `Command { std: "docker" "start" "-a" "4393aa85194e03b8bb5a554a9638c042738770d2bfb26083103d1da0dfa6e1a1", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling nix v0.16.1 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling crc32fast v1.2.1 [INFO] [stderr] Checking cpufeatures v0.1.4 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Compiling libudev-sys v0.1.4 [INFO] [stderr] Checking leb128 v0.2.4 [INFO] [stderr] Checking dissimilar v1.0.2 [INFO] [stderr] Checking once_cell v1.7.2 [INFO] [stderr] Checking typenum v1.13.0 [INFO] [stderr] Checking expect-test v1.1.0 [INFO] [stderr] Compiling generic-array v0.14.4 [INFO] [stderr] Checking object v0.25.3 [INFO] [stderr] Checking block-buffer v0.9.0 [INFO] [stderr] Checking digest v0.9.0 [INFO] [stderr] Checking sha2 v0.9.5 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking env_logger v0.9.0 [INFO] [stderr] Checking libudev v0.2.0 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/libudev-0.2.0/src/enumerator.rs:159:13 [INFO] [stdout] | [INFO] [stdout] 159 | / match self.enumerator.context.device_from_syspath(syspath) { [INFO] [stdout] 160 | | Ok(d) => return Some(d), [INFO] [stdout] 161 | | Err(_) => continue [INFO] [stdout] 162 | | }; [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 `libudev` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "4393aa85194e03b8bb5a554a9638c042738770d2bfb26083103d1da0dfa6e1a1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4393aa85194e03b8bb5a554a9638c042738770d2bfb26083103d1da0dfa6e1a1", kill_on_drop: false }` [INFO] [stdout] 4393aa85194e03b8bb5a554a9638c042738770d2bfb26083103d1da0dfa6e1a1