[INFO] fetching crate ravedude 0.1.6...
[INFO] checking ravedude-0.1.6 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate ravedude 0.1.6 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate ravedude 0.1.6 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] removed /workspace/builds/worker-2-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate ravedude 0.1.6
[INFO] finished tweaking crates.io crate ravedude 0.1.6
[INFO] tweaked toml for crates.io crate ravedude 0.1.6 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate ravedude 0.1.6 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 v0.2.0
[INFO] [stderr]   Downloaded IOKit-sys v0.1.5
[INFO] [stderr]   Downloaded git-version-macro v0.3.4
[INFO] [stderr]   Downloaded mach v0.1.2
[INFO] [stderr]   Downloaded ctrlc v3.2.1
[INFO] [stderr]   Downloaded git-version v0.3.4
[INFO] [stderr]   Downloaded CoreFoundation-sys v0.1.4
[INFO] [stderr]   Downloaded nix v0.16.1
[INFO] [stderr]   Downloaded libc v0.2.106
[INFO] [stderr]   Downloaded serialport v4.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 0d776187457d60509239e2d20020b8333ac2e4bbab75adb45c3516bb7414f71d
[INFO] running `Command { std: "docker" "start" "-a" "0d776187457d60509239e2d20020b8333ac2e4bbab75adb45c3516bb7414f71d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d776187457d60509239e2d20020b8333ac2e4bbab75adb45c3516bb7414f71d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d776187457d60509239e2d20020b8333ac2e4bbab75adb45c3516bb7414f71d", kill_on_drop: false }`
[INFO] [stdout] 0d776187457d60509239e2d20020b8333ac2e4bbab75adb45c3516bb7414f71d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d6eb2253b6d3c0237af43db9c0f36bcdf565df0f9423bac63ab7aeedf607002a
[INFO] running `Command { std: "docker" "start" "-a" "d6eb2253b6d3c0237af43db9c0f36bcdf565df0f9423bac63ab7aeedf607002a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.23.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling git-version-macro v0.3.4
[INFO] [stderr]     Checking serialport v4.0.0
[INFO] [stderr]     Checking ctrlc v3.2.1
[INFO] [stderr]     Checking git-version v0.3.4
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking ravedude v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.99s
[INFO] running `Command { std: "docker" "inspect" "d6eb2253b6d3c0237af43db9c0f36bcdf565df0f9423bac63ab7aeedf607002a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6eb2253b6d3c0237af43db9c0f36bcdf565df0f9423bac63ab7aeedf607002a", kill_on_drop: false }`
[INFO] [stdout] d6eb2253b6d3c0237af43db9c0f36bcdf565df0f9423bac63ab7aeedf607002a
[INFO] checking ravedude-0.1.6 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate ravedude 0.1.6 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate ravedude 0.1.6 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] removed /workspace/builds/worker-2-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate ravedude 0.1.6
[INFO] finished tweaking crates.io crate ravedude 0.1.6
[INFO] tweaked toml for crates.io crate ravedude 0.1.6 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate ravedude 0.1.6 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 801af542174318473eeb2f740f2c733856a90ace24b5b6bcb90e1273fc95d9fe
[INFO] running `Command { std: "docker" "start" "-a" "801af542174318473eeb2f740f2c733856a90ace24b5b6bcb90e1273fc95d9fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "801af542174318473eeb2f740f2c733856a90ace24b5b6bcb90e1273fc95d9fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "801af542174318473eeb2f740f2c733856a90ace24b5b6bcb90e1273fc95d9fe", kill_on_drop: false }`
[INFO] [stdout] 801af542174318473eeb2f740f2c733856a90ace24b5b6bcb90e1273fc95d9fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] fecc5ac3e8650fe7232699e01da8219dfd717f4685e8ac29c66643cb2012912f
[INFO] running `Command { std: "docker" "start" "-a" "fecc5ac3e8650fe7232699e01da8219dfd717f4685e8ac29c66643cb2012912f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.23.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.2
[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" "fecc5ac3e8650fe7232699e01da8219dfd717f4685e8ac29c66643cb2012912f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fecc5ac3e8650fe7232699e01da8219dfd717f4685e8ac29c66643cb2012912f", kill_on_drop: false }`
[INFO] [stdout] fecc5ac3e8650fe7232699e01da8219dfd717f4685e8ac29c66643cb2012912f