[INFO] fetching crate log-print-panics 2.1.3...
[INFO] checking log-print-panics-2.1.3 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate log-print-panics 2.1.3 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate log-print-panics 2.1.3 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 log-print-panics 2.1.3
[INFO] finished tweaking crates.io crate log-print-panics 2.1.3
[INFO] tweaked toml for crates.io crate log-print-panics 2.1.3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate log-print-panics 2.1.3 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 4ad89f95a5b029e2784688dfbea88315c1e5daa2ff774eb805404db7837af6fa
[INFO] running `Command { std: "docker" "start" "-a" "4ad89f95a5b029e2784688dfbea88315c1e5daa2ff774eb805404db7837af6fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ad89f95a5b029e2784688dfbea88315c1e5daa2ff774eb805404db7837af6fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ad89f95a5b029e2784688dfbea88315c1e5daa2ff774eb805404db7837af6fa", kill_on_drop: false }`
[INFO] [stdout] 4ad89f95a5b029e2784688dfbea88315c1e5daa2ff774eb805404db7837af6fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] d51489ba1d9fe45290c5c7325faa8259a22dc39abb9c19adb29ad06e601874d8
[INFO] running `Command { std: "docker" "start" "-a" "d51489ba1d9fe45290c5c7325faa8259a22dc39abb9c19adb29ad06e601874d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking log-print-panics v2.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex-automata v0.3.6
[INFO] [stderr]     Checking regex v1.9.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.65s
[INFO] running `Command { std: "docker" "inspect" "d51489ba1d9fe45290c5c7325faa8259a22dc39abb9c19adb29ad06e601874d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d51489ba1d9fe45290c5c7325faa8259a22dc39abb9c19adb29ad06e601874d8", kill_on_drop: false }`
[INFO] [stdout] d51489ba1d9fe45290c5c7325faa8259a22dc39abb9c19adb29ad06e601874d8
[INFO] checking log-print-panics-2.1.3 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate log-print-panics 2.1.3 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate log-print-panics 2.1.3 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 log-print-panics 2.1.3
[INFO] finished tweaking crates.io crate log-print-panics 2.1.3
[INFO] tweaked toml for crates.io crate log-print-panics 2.1.3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate log-print-panics 2.1.3 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] cc6b645a3e1a4fa67c1cd00964a433d54d94b83d311f77ae28ea98cc170e0cde
[INFO] running `Command { std: "docker" "start" "-a" "cc6b645a3e1a4fa67c1cd00964a433d54d94b83d311f77ae28ea98cc170e0cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc6b645a3e1a4fa67c1cd00964a433d54d94b83d311f77ae28ea98cc170e0cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc6b645a3e1a4fa67c1cd00964a433d54d94b83d311f77ae28ea98cc170e0cde", kill_on_drop: false }`
[INFO] [stdout] cc6b645a3e1a4fa67c1cd00964a433d54d94b83d311f77ae28ea98cc170e0cde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 4e90361667ab58998f2c1488ae305bc658c7ad800980d649c02105742c1678fa
[INFO] running `Command { std: "docker" "start" "-a" "4e90361667ab58998f2c1488ae305bc658c7ad800980d649c02105742c1678fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking log-print-panics v2.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex-automata v0.3.6
[INFO] [stderr]     Checking regex v1.9.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> examples/panic.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     panic!();
[INFO] [stdout]    |     ^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[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 `log-print-panics` (example "panic") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4e90361667ab58998f2c1488ae305bc658c7ad800980d649c02105742c1678fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e90361667ab58998f2c1488ae305bc658c7ad800980d649c02105742c1678fa", kill_on_drop: false }`
[INFO] [stdout] 4e90361667ab58998f2c1488ae305bc658c7ad800980d649c02105742c1678fa