[INFO] cloning repository https://github.com/oknozor/udev-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/oknozor/udev-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foknozor%2Fudev-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foknozor%2Fudev-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3514575a2ec40bbb27bcb61846dfa12d431a669d
[INFO] checking oknozor/udev-test against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foknozor%2Fudev-test" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/oknozor/udev-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/oknozor/udev-test
[INFO] finished tweaking git repo https://github.com/oknozor/udev-test
[INFO] tweaked toml for git repo https://github.com/oknozor/udev-test written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/oknozor/udev-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]  Downloading crates ...
[INFO] [stderr]   Downloaded udev v0.6.3
[INFO] [stderr]   Downloaded unicode-ident v1.0.0
[INFO] [stderr]   Downloaded syn v1.0.95
[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] 81726ba55c9a76b1d30bb5ef71824cb68b571fa23289c738ec5ed989a01a038c
[INFO] running `Command { std: "docker" "start" "-a" "81726ba55c9a76b1d30bb5ef71824cb68b571fa23289c738ec5ed989a01a038c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81726ba55c9a76b1d30bb5ef71824cb68b571fa23289c738ec5ed989a01a038c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81726ba55c9a76b1d30bb5ef71824cb68b571fa23289c738ec5ed989a01a038c", kill_on_drop: false }`
[INFO] [stdout] 81726ba55c9a76b1d30bb5ef71824cb68b571fa23289c738ec5ed989a01a038c
[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] caa7b0fd6204808753dccf2e1ca2acb2938bd8889c316d8d0f199595344ab502
[INFO] running `Command { std: "docker" "start" "-a" "caa7b0fd6204808753dccf2e1ca2acb2938bd8889c316d8d0f199595344ab502", kill_on_drop: false }`
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking udev v0.6.3
[INFO] [stderr]     Checking udev-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "caa7b0fd6204808753dccf2e1ca2acb2938bd8889c316d8d0f199595344ab502", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caa7b0fd6204808753dccf2e1ca2acb2938bd8889c316d8d0f199595344ab502", kill_on_drop: false }`
[INFO] [stdout] caa7b0fd6204808753dccf2e1ca2acb2938bd8889c316d8d0f199595344ab502
[INFO] checking oknozor/udev-test against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foknozor%2Fudev-test" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/oknozor/udev-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/oknozor/udev-test
[INFO] finished tweaking git repo https://github.com/oknozor/udev-test
[INFO] tweaked toml for git repo https://github.com/oknozor/udev-test written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/oknozor/udev-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-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] 6f14d1d8c9fc70504ba13560cc6f4606fe68f8cc004f143e84ba1586527f7607
[INFO] running `Command { std: "docker" "start" "-a" "6f14d1d8c9fc70504ba13560cc6f4606fe68f8cc004f143e84ba1586527f7607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f14d1d8c9fc70504ba13560cc6f4606fe68f8cc004f143e84ba1586527f7607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f14d1d8c9fc70504ba13560cc6f4606fe68f8cc004f143e84ba1586527f7607", kill_on_drop: false }`
[INFO] [stdout] 6f14d1d8c9fc70504ba13560cc6f4606fe68f8cc004f143e84ba1586527f7607
[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] 02e9a352603ee5ee5726e4281e5f5b0b3aaa0b9806413c3845a2bec9bc4948fd
[INFO] running `Command { std: "docker" "start" "-a" "02e9a352603ee5ee5726e4281e5f5b0b3aaa0b9806413c3845a2bec9bc4948fd", kill_on_drop: false }`
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking udev v0.6.3
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/udev-0.6.3/src/enumerator.rs:200:13
[INFO] [stdout]     |
[INFO] [stdout] 200 | /             match Device::from_syspath(syspath) {
[INFO] [stdout] 201 | |                 Ok(d) => return Some(d),
[INFO] [stdout] 202 | |                 Err(_) => continue,
[INFO] [stdout] 203 | |             };
[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 `udev` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "02e9a352603ee5ee5726e4281e5f5b0b3aaa0b9806413c3845a2bec9bc4948fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02e9a352603ee5ee5726e4281e5f5b0b3aaa0b9806413c3845a2bec9bc4948fd", kill_on_drop: false }`
[INFO] [stdout] 02e9a352603ee5ee5726e4281e5f5b0b3aaa0b9806413c3845a2bec9bc4948fd