[INFO] cloning repository https://github.com/rioadvancement/nalperion_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rioadvancement/nalperion_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frioadvancement%2Fnalperion_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frioadvancement%2Fnalperion_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fb1aef411091aad7efee77da84cb778f9cfd27d1 [INFO] checking rioadvancement/nalperion_rust against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frioadvancement%2Fnalperion_rust" "/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/rioadvancement/nalperion_rust 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/rioadvancement/nalperion_rust [INFO] finished tweaking git repo https://github.com/rioadvancement/nalperion_rust [INFO] tweaked toml for git repo https://github.com/rioadvancement/nalperion_rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/rioadvancement/nalperion_rust 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] Updating git repository `https://github.com/withoutboats/failure.git` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Updating git repository `https://github.com/withoutboats/display_derive` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded serde_json v1.0.11 [INFO] [stderr] Downloaded serde_derive v1.0.32 [INFO] [stderr] Downloaded syn v0.12.14 [INFO] [stderr] Downloaded lazy_static v1.0.0 [INFO] [stderr] Downloaded thread_local v0.3.5 [INFO] [stderr] Downloaded synstructure v0.6.1 [INFO] [stderr] Downloaded pest_derive v1.0.6 [INFO] [stderr] Downloaded quick-error v1.2.1 [INFO] [stderr] Downloaded regex-syntax v0.5.3 [INFO] [stderr] Downloaded aho-corasick v0.6.4 [INFO] [stderr] Downloaded memchr v2.0.1 [INFO] [stderr] Downloaded handlebars v0.32.0 [INFO] [stderr] Downloaded cc v1.0.7 [INFO] [stderr] Downloaded libc v0.2.39 [INFO] [stderr] Downloaded serde_derive_internals v0.20.1 [INFO] [stderr] Downloaded num-traits v0.2.1 [INFO] [stderr] Downloaded serde v1.0.32 [INFO] [stderr] Downloaded bitflags v1.0.1 [INFO] [stderr] Downloaded cfg-if v0.1.2 [INFO] [stderr] Downloaded regex v0.2.9 [INFO] [stderr] Downloaded pest v1.0.6 [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] 6e45b835cbd13bf9168c2de10a66f4c4b0857e6fc671943a03ec1e350bd91aa4 [INFO] running `Command { std: "docker" "start" "-a" "6e45b835cbd13bf9168c2de10a66f4c4b0857e6fc671943a03ec1e350bd91aa4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6e45b835cbd13bf9168c2de10a66f4c4b0857e6fc671943a03ec1e350bd91aa4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6e45b835cbd13bf9168c2de10a66f4c4b0857e6fc671943a03ec1e350bd91aa4", kill_on_drop: false }` [INFO] [stdout] 6e45b835cbd13bf9168c2de10a66f4c4b0857e6fc671943a03ec1e350bd91aa4 [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] 25c1fb3c34679c660831382c59ce90ce8fe9887dbb499c583772e9769efefbc4 [INFO] running `Command { std: "docker" "start" "-a" "25c1fb3c34679c660831382c59ce90ce8fe9887dbb499c583772e9769efefbc4", kill_on_drop: false }` [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Checking libc v0.2.39 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling regex v0.2.9 [INFO] [stderr] Checking lazy_static v1.0.0 [INFO] [stderr] Checking ucd-util v0.1.1 [INFO] [stderr] Compiling cc v1.0.7 [INFO] [stderr] Compiling pest v1.0.6 [INFO] [stderr] Checking dtoa v0.4.2 [INFO] [stderr] Checking itoa v0.3.4 [INFO] [stderr] Checking utf8-ranges v1.0.0 [INFO] [stderr] Checking serde v1.0.32 [INFO] [stderr] Checking num-traits v0.2.1 [INFO] [stderr] Checking cfg-if v0.1.2 [INFO] [stderr] Compiling proc-macro2 v0.2.3 [INFO] [stderr] Checking quick-error v1.2.1 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking log v0.4.1 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Checking thread_local v0.3.5 [INFO] [stderr] Checking regex-syntax v0.5.3 [INFO] [stderr] Compiling quote v0.4.2 [INFO] [stderr] Checking memchr v2.0.1 [INFO] [stderr] Checking rand v0.4.2 [INFO] [stderr] Compiling syn v0.12.14 [INFO] [stderr] Checking aho-corasick v0.6.4 [INFO] [stderr] Compiling libloading v0.5.0 [INFO] [stderr] Compiling synstructure v0.6.1 [INFO] [stderr] Compiling pest_derive v1.0.6 [INFO] [stderr] Compiling failure_derive v1.0.0 (https://github.com/withoutboats/failure.git#514aa258) [INFO] [stderr] Compiling display_derive v1.0.0 (https://github.com/withoutboats/display_derive#5d6bac2f) [INFO] [stderr] Checking failure v1.0.0 (https://github.com/withoutboats/failure.git#514aa258) [INFO] [stderr] Compiling serde_derive_internals v0.20.1 [INFO] [stderr] Compiling serde_derive v1.0.32 [INFO] [stderr] Checking serde_json v1.0.11 [INFO] [stderr] Checking handlebars v0.32.0 [INFO] [stderr] Checking rioos_entitlement v0.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `rand` is imported redundantly [INFO] [stdout] --> src/nalperion.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | use rand::{self, Rng}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/main.rs:9:1 [INFO] [stdout] | [INFO] [stdout] 9 | extern crate rand; [INFO] [stdout] | ------------------ the item `rand` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `lib_load` is imported redundantly [INFO] [stdout] --> src/nalperion.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | use lib_load; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/main.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | extern crate libloading as lib_load; [INFO] [stdout] | ------------------------------------ the item `lib_load` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `rand` is imported redundantly [INFO] [stdout] --> src/nalperion.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | use rand::{self, Rng}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/main.rs:9:1 [INFO] [stdout] | [INFO] [stdout] 9 | extern crate rand; [INFO] [stdout] | ------------------ the item `rand` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `lib_load` is imported redundantly [INFO] [stdout] --> src/nalperion.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | use lib_load; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/main.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | extern crate libloading as lib_load; [INFO] [stdout] | ------------------------------------ the item `lib_load` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.27s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.12.14 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "25c1fb3c34679c660831382c59ce90ce8fe9887dbb499c583772e9769efefbc4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "25c1fb3c34679c660831382c59ce90ce8fe9887dbb499c583772e9769efefbc4", kill_on_drop: false }` [INFO] [stdout] 25c1fb3c34679c660831382c59ce90ce8fe9887dbb499c583772e9769efefbc4 [INFO] checking rioadvancement/nalperion_rust against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frioadvancement%2Fnalperion_rust" "/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/rioadvancement/nalperion_rust 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/rioadvancement/nalperion_rust [INFO] finished tweaking git repo https://github.com/rioadvancement/nalperion_rust [INFO] tweaked toml for git repo https://github.com/rioadvancement/nalperion_rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/rioadvancement/nalperion_rust 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] a0642a30dc025705abf52daa8870ba860ff4cd719f3b8236ac9b6a7c650de3ec [INFO] running `Command { std: "docker" "start" "-a" "a0642a30dc025705abf52daa8870ba860ff4cd719f3b8236ac9b6a7c650de3ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a0642a30dc025705abf52daa8870ba860ff4cd719f3b8236ac9b6a7c650de3ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a0642a30dc025705abf52daa8870ba860ff4cd719f3b8236ac9b6a7c650de3ec", kill_on_drop: false }` [INFO] [stdout] a0642a30dc025705abf52daa8870ba860ff4cd719f3b8236ac9b6a7c650de3ec [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] c988421a94ade6feb72462756521c502393b82c441e46eb861e64fda7d47f732 [INFO] running `Command { std: "docker" "start" "-a" "c988421a94ade6feb72462756521c502393b82c441e46eb861e64fda7d47f732", kill_on_drop: false }` [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Checking libc v0.2.39 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling regex v0.2.9 [INFO] [stderr] Checking ucd-util v0.1.1 [INFO] [stderr] Checking lazy_static v1.0.0 [INFO] [stderr] Compiling cc v1.0.7 [INFO] [stderr] Checking serde v1.0.32 [INFO] [stderr] Checking num-traits v0.2.1 [INFO] [stderr] Compiling pest v1.0.6 [INFO] [stderr] Checking cfg-if v0.1.2 [INFO] [stderr] Checking itoa v0.3.4 [INFO] [stderr] Checking dtoa v0.4.2 [INFO] [stderr] Checking utf8-ranges v1.0.0 [INFO] [stderr] Checking quick-error v1.2.1 [INFO] [stderr] Compiling proc-macro2 v0.2.3 [INFO] [stderr] Checking log v0.4.1 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking regex-syntax v0.5.3 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Checking thread_local v0.3.5 [INFO] [stderr] Checking memchr v2.0.1 [INFO] [stderr] Checking rand v0.4.2 [INFO] [stderr] Compiling quote v0.4.2 [INFO] [stderr] Checking aho-corasick v0.6.4 [INFO] [stderr] Compiling syn v0.12.14 [INFO] [stderr] Compiling libloading v0.5.0 [INFO] [stderr] Compiling synstructure v0.6.1 [INFO] [stderr] Compiling pest_derive v1.0.6 [INFO] [stderr] Compiling display_derive v1.0.0 (https://github.com/withoutboats/display_derive#5d6bac2f) [INFO] [stderr] Compiling failure_derive v1.0.0 (https://github.com/withoutboats/failure.git#514aa258) [INFO] [stderr] Compiling serde_derive_internals v0.20.1 [INFO] [stderr] Checking failure v1.0.0 (https://github.com/withoutboats/failure.git#514aa258) [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-0.2.9/src/exec.rs:751:13 [INFO] [stdout] | [INFO] [stdout] 751 | / match dfa::Fsm::reverse( [INFO] [stdout] 752 | | &self.ro.dfa_reverse, [INFO] [stdout] 753 | | self.cache, [INFO] [stdout] 754 | | false, [INFO] [stdout] ... | [INFO] [stdout] 761 | | Quit => return Some(Quit), [INFO] [stdout] 762 | | }; [INFO] [stdout] | |_____________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling serde_derive v1.0.32 [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] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "c988421a94ade6feb72462756521c502393b82c441e46eb861e64fda7d47f732", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c988421a94ade6feb72462756521c502393b82c441e46eb861e64fda7d47f732", kill_on_drop: false }` [INFO] [stdout] c988421a94ade6feb72462756521c502393b82c441e46eb861e64fda7d47f732