[INFO] cloning repository https://github.com/nsmryan/serial_passthrough
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nsmryan/serial_passthrough" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnsmryan%2Fserial_passthrough", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnsmryan%2Fserial_passthrough'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e237a786856d7f50bc45ef07bbffceeb5b0f363f
[INFO] checking nsmryan/serial_passthrough against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnsmryan%2Fserial_passthrough" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nsmryan/serial_passthrough 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/nsmryan/serial_passthrough
[INFO] finished tweaking git repo https://github.com/nsmryan/serial_passthrough
[INFO] tweaked toml for git repo https://github.com/nsmryan/serial_passthrough written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/nsmryan/serial_passthrough 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 911db40bdf6d8a30e7dd6e6dede4a164ffa85d1472ffff59d8bcba79d973acde
[INFO] running `Command { std: "docker" "start" "-a" "911db40bdf6d8a30e7dd6e6dede4a164ffa85d1472ffff59d8bcba79d973acde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "911db40bdf6d8a30e7dd6e6dede4a164ffa85d1472ffff59d8bcba79d973acde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "911db40bdf6d8a30e7dd6e6dede4a164ffa85d1472ffff59d8bcba79d973acde", kill_on_drop: false }`
[INFO] [stdout] 911db40bdf6d8a30e7dd6e6dede4a164ffa85d1472ffff59d8bcba79d973acde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ec1832b74024181281631585977a8eeea3abf7832e4331cc87fd51c8f054e0a2
[INFO] running `Command { std: "docker" "start" "-a" "ec1832b74024181281631585977a8eeea3abf7832e4331cc87fd51c8f054e0a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling pkg-config v0.3.15
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking serialport v3.3.0
[INFO] [stderr]     Checking serial_passthrough v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `Command { std: "docker" "inspect" "ec1832b74024181281631585977a8eeea3abf7832e4331cc87fd51c8f054e0a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec1832b74024181281631585977a8eeea3abf7832e4331cc87fd51c8f054e0a2", kill_on_drop: false }`
[INFO] [stdout] ec1832b74024181281631585977a8eeea3abf7832e4331cc87fd51c8f054e0a2
[INFO] checking nsmryan/serial_passthrough against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnsmryan%2Fserial_passthrough" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nsmryan/serial_passthrough 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/nsmryan/serial_passthrough
[INFO] finished tweaking git repo https://github.com/nsmryan/serial_passthrough
[INFO] tweaked toml for git repo https://github.com/nsmryan/serial_passthrough written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/nsmryan/serial_passthrough 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] da57979cfcaf8ceb70191be510b211d2f393316823408cb1859e19be9175d98f
[INFO] running `Command { std: "docker" "start" "-a" "da57979cfcaf8ceb70191be510b211d2f393316823408cb1859e19be9175d98f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da57979cfcaf8ceb70191be510b211d2f393316823408cb1859e19be9175d98f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da57979cfcaf8ceb70191be510b211d2f393316823408cb1859e19be9175d98f", kill_on_drop: false }`
[INFO] [stdout] da57979cfcaf8ceb70191be510b211d2f393316823408cb1859e19be9175d98f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e84ebaa127cd4ec73da623bf93f4dff0d116c80e9cf4ac2a7575e5c802df0d95
[INFO] running `Command { std: "docker" "start" "-a" "e84ebaa127cd4ec73da623bf93f4dff0d116c80e9cf4ac2a7575e5c802df0d95", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling pkg-config v0.3.15
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[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" "e84ebaa127cd4ec73da623bf93f4dff0d116c80e9cf4ac2a7575e5c802df0d95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e84ebaa127cd4ec73da623bf93f4dff0d116c80e9cf4ac2a7575e5c802df0d95", kill_on_drop: false }`
[INFO] [stdout] e84ebaa127cd4ec73da623bf93f4dff0d116c80e9cf4ac2a7575e5c802df0d95