[INFO] cloning repository https://github.com/rphsoftware/uppercase-letter-lookup-table-builder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rphsoftware/uppercase-letter-lookup-table-builder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frphsoftware%2Fuppercase-letter-lookup-table-builder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frphsoftware%2Fuppercase-letter-lookup-table-builder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2a0b0e8efd0b15aaa67aed34ea56333adebac24f
[INFO] checking rphsoftware/uppercase-letter-lookup-table-builder against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frphsoftware%2Fuppercase-letter-lookup-table-builder" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rphsoftware/uppercase-letter-lookup-table-builder 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/rphsoftware/uppercase-letter-lookup-table-builder
[INFO] finished tweaking git repo https://github.com/rphsoftware/uppercase-letter-lookup-table-builder
[INFO] tweaked toml for git repo https://github.com/rphsoftware/uppercase-letter-lookup-table-builder written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rphsoftware/uppercase-letter-lookup-table-builder 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-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] c821c7b45ac22cccabc14aa8e41355b51bbf9a0b7a7df132f0fc26bc3718f558
[INFO] running `Command { std: "docker" "start" "-a" "c821c7b45ac22cccabc14aa8e41355b51bbf9a0b7a7df132f0fc26bc3718f558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c821c7b45ac22cccabc14aa8e41355b51bbf9a0b7a7df132f0fc26bc3718f558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c821c7b45ac22cccabc14aa8e41355b51bbf9a0b7a7df132f0fc26bc3718f558", kill_on_drop: false }`
[INFO] [stdout] c821c7b45ac22cccabc14aa8e41355b51bbf9a0b7a7df132f0fc26bc3718f558
[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] 4f7cf32867fbc7ec3e164ff5a7d365e94239d69d7743b87e39368fb458f7474e
[INFO] running `Command { std: "docker" "start" "-a" "4f7cf32867fbc7ec3e164ff5a7d365e94239d69d7743b87e39368fb458f7474e", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking quick-xml v0.17.2
[INFO] [stderr]     Checking minidom v0.12.0
[INFO] [stderr]     Checking anticaps_fgen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.74s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.17.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "4f7cf32867fbc7ec3e164ff5a7d365e94239d69d7743b87e39368fb458f7474e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f7cf32867fbc7ec3e164ff5a7d365e94239d69d7743b87e39368fb458f7474e", kill_on_drop: false }`
[INFO] [stdout] 4f7cf32867fbc7ec3e164ff5a7d365e94239d69d7743b87e39368fb458f7474e
[INFO] checking rphsoftware/uppercase-letter-lookup-table-builder against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frphsoftware%2Fuppercase-letter-lookup-table-builder" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rphsoftware/uppercase-letter-lookup-table-builder 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/rphsoftware/uppercase-letter-lookup-table-builder
[INFO] finished tweaking git repo https://github.com/rphsoftware/uppercase-letter-lookup-table-builder
[INFO] tweaked toml for git repo https://github.com/rphsoftware/uppercase-letter-lookup-table-builder written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/rphsoftware/uppercase-letter-lookup-table-builder 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] 7ba289c398ff2b20f158b6385040f1499a5ad25f4e234e8a5c44d1ef04f9a4bc
[INFO] running `Command { std: "docker" "start" "-a" "7ba289c398ff2b20f158b6385040f1499a5ad25f4e234e8a5c44d1ef04f9a4bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ba289c398ff2b20f158b6385040f1499a5ad25f4e234e8a5c44d1ef04f9a4bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ba289c398ff2b20f158b6385040f1499a5ad25f4e234e8a5c44d1ef04f9a4bc", kill_on_drop: false }`
[INFO] [stdout] 7ba289c398ff2b20f158b6385040f1499a5ad25f4e234e8a5c44d1ef04f9a4bc
[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] 06fe64b7f98e16d0d23d620a29eaae0e0a725b4f6bb56a67b091a3224a35ab28
[INFO] running `Command { std: "docker" "start" "-a" "06fe64b7f98e16d0d23d620a29eaae0e0a725b4f6bb56a67b091a3224a35ab28", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking quick-xml v0.17.2
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/quick-xml-0.17.2/src/events/attributes.rs:199:17
[INFO] [stdout]     |
[INFO] [stdout] 199 | /                 if self.html {
[INFO] [stdout] 200 | |                     attr!($key, 0..0)
[INFO] [stdout] 201 | |                 } else {
[INFO] [stdout] 202 | |                     return None;
[INFO] [stdout] 203 | |                 };
[INFO] [stdout]     | |_________________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 226 |               None => attr!(self.position..len),
[INFO] [stdout]     |                       ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `attr` (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 E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `quick-xml` (lib) due to 2 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "06fe64b7f98e16d0d23d620a29eaae0e0a725b4f6bb56a67b091a3224a35ab28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06fe64b7f98e16d0d23d620a29eaae0e0a725b4f6bb56a67b091a3224a35ab28", kill_on_drop: false }`
[INFO] [stdout] 06fe64b7f98e16d0d23d620a29eaae0e0a725b4f6bb56a67b091a3224a35ab28