[INFO] fetching crate udp-socket 0.1.5... [INFO] checking udp-socket-0.1.5 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate udp-socket 0.1.5 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate udp-socket 0.1.5 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 udp-socket 0.1.5 [INFO] finished tweaking crates.io crate udp-socket 0.1.5 [INFO] tweaked toml for crates.io crate udp-socket 0.1.5 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate crates.io crate udp-socket 0.1.5 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 vec-arena v1.1.0 [INFO] [stderr] Downloaded nb-connect v1.1.0 [INFO] [stderr] Downloaded regex-syntax v0.6.23 [INFO] [stderr] Downloaded libc v0.2.92 [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] ec3c6273a38346f6376d1e29dbca8f2c67da6da977a8f188bd5a8cebc1fc4d6f [INFO] running `Command { std: "docker" "start" "-a" "ec3c6273a38346f6376d1e29dbca8f2c67da6da977a8f188bd5a8cebc1fc4d6f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ec3c6273a38346f6376d1e29dbca8f2c67da6da977a8f188bd5a8cebc1fc4d6f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ec3c6273a38346f6376d1e29dbca8f2c67da6da977a8f188bd5a8cebc1fc4d6f", kill_on_drop: false }` [INFO] [stdout] ec3c6273a38346f6376d1e29dbca8f2c67da6da977a8f188bd5a8cebc1fc4d6f [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] 39ca4c94fa8a80b88fd71a8860c1dd74c54b55f63c2ee02300d75c53782cc631 [INFO] running `Command { std: "docker" "start" "-a" "39ca4c94fa8a80b88fd71a8860c1dd74c54b55f63c2ee02300d75c53782cc631", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling libc v0.2.92 [INFO] [stderr] Checking futures-core v0.3.13 [INFO] [stderr] Checking futures-io v0.3.13 [INFO] [stderr] Checking vec-arena v1.1.0 [INFO] [stderr] Checking regex-syntax v0.6.23 [INFO] [stderr] Checking async-channel v1.6.1 [INFO] [stderr] Checking futures-lite v1.11.3 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Checking socket2 v0.4.0 [INFO] [stderr] Checking polling v2.0.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking regex v1.4.5 [INFO] [stderr] Checking nb-connect v1.1.0 [INFO] [stderr] Checking async-io v1.3.1 [INFO] [stderr] Checking blocking v1.0.2 [INFO] [stderr] Checking async-executor v1.4.0 [INFO] [stderr] Checking async-global-executor v2.0.2 [INFO] [stderr] Checking udp-socket v0.1.5 (/opt/rustwide/workdir) [INFO] [stderr] Checking env_logger v0.8.3 [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.03s [INFO] running `Command { std: "docker" "inspect" "39ca4c94fa8a80b88fd71a8860c1dd74c54b55f63c2ee02300d75c53782cc631", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "39ca4c94fa8a80b88fd71a8860c1dd74c54b55f63c2ee02300d75c53782cc631", kill_on_drop: false }` [INFO] [stdout] 39ca4c94fa8a80b88fd71a8860c1dd74c54b55f63c2ee02300d75c53782cc631 [INFO] checking udp-socket-0.1.5 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate udp-socket 0.1.5 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate udp-socket 0.1.5 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 udp-socket 0.1.5 [INFO] finished tweaking crates.io crate udp-socket 0.1.5 [INFO] tweaked toml for crates.io crate udp-socket 0.1.5 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate crates.io crate udp-socket 0.1.5 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] 743767fbfa835189b5a661aa3441e73e48bcf4663fcec47e0b448dede7deca92 [INFO] running `Command { std: "docker" "start" "-a" "743767fbfa835189b5a661aa3441e73e48bcf4663fcec47e0b448dede7deca92", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "743767fbfa835189b5a661aa3441e73e48bcf4663fcec47e0b448dede7deca92", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "743767fbfa835189b5a661aa3441e73e48bcf4663fcec47e0b448dede7deca92", kill_on_drop: false }` [INFO] [stdout] 743767fbfa835189b5a661aa3441e73e48bcf4663fcec47e0b448dede7deca92 [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] d2c41c54bc526f251def7776df5f5204f1f07b8da5d105c39be01dbe74ec31a3 [INFO] running `Command { std: "docker" "start" "-a" "d2c41c54bc526f251def7776df5f5204f1f07b8da5d105c39be01dbe74ec31a3", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.92 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking futures-core v0.3.13 [INFO] [stderr] Checking futures-io v0.3.13 [INFO] [stderr] Checking vec-arena v1.1.0 [INFO] [stderr] Checking atomic-waker v1.0.0 [INFO] [stderr] Checking regex-syntax v0.6.23 [INFO] [stderr] Checking async-mutex v1.4.0 [INFO] [stderr] Checking async-channel v1.6.1 [INFO] [stderr] Checking futures-lite v1.11.3 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Checking socket2 v0.4.0 [INFO] [stderr] Checking polling v2.0.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-lite-1.11.3/src/future.rs:469:27 [INFO] [stdout] | [INFO] [stdout] 469 | let t1 = res1.map_err(|_| unreachable!()).unwrap(); [INFO] [stdout] | ^^^^^^^ cannot infer type of the type parameter `F` declared on the method `map_err` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 469 | let t1 = res1.map_err::(|_| unreachable!()).unwrap(); [INFO] [stdout] | ++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking nb-connect v1.1.0 [INFO] [stderr] Checking regex v1.4.5 [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 `futures-lite` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.4.5/src/exec.rs:851:13 [INFO] [stdout] | [INFO] [stdout] 851 | / match dfa::Fsm::reverse( [INFO] [stdout] 852 | | &self.ro.dfa_reverse, [INFO] [stdout] 853 | | self.cache.value(), [INFO] [stdout] 854 | | false, [INFO] [stdout] ... | [INFO] [stdout] 865 | | Quit => return Some(Quit), [INFO] [stdout] 866 | | }; [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 `regex` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "d2c41c54bc526f251def7776df5f5204f1f07b8da5d105c39be01dbe74ec31a3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d2c41c54bc526f251def7776df5f5204f1f07b8da5d105c39be01dbe74ec31a3", kill_on_drop: false }` [INFO] [stdout] d2c41c54bc526f251def7776df5f5204f1f07b8da5d105c39be01dbe74ec31a3