[INFO] cloning repository https://github.com/sd-rust/cargo-demo [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sd-rust/cargo-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsd-rust%2Fcargo-demo", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsd-rust%2Fcargo-demo'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 541b56a739a3a273c3b36852a8a8ff00c6e4425d [INFO] checking sd-rust/cargo-demo against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsd-rust%2Fcargo-demo" "/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/sd-rust/cargo-demo 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/sd-rust/cargo-demo [INFO] finished tweaking git repo https://github.com/sd-rust/cargo-demo [INFO] tweaked toml for git repo https://github.com/sd-rust/cargo-demo written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/sd-rust/cargo-demo 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 crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded backtrace v0.3.8 [INFO] [stderr] Downloaded serde_json v1.0.21 [INFO] [stderr] Downloaded serde v1.0.66 [INFO] [stderr] Downloaded human-panic v1.0.0 [INFO] [stderr] Downloaded cc v1.0.17 [INFO] [stderr] Downloaded serde_derive v1.0.66 [INFO] [stderr] Downloaded syn v0.14.2 [INFO] [stderr] Downloaded backtrace-sys v0.1.23 [INFO] [stderr] Downloaded os_type v2.0.0 [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] b0eecd8fa2f013a1bc2ae6c8f4aaf9d94dce69c49f5814c7384dfb6bb299c45d [INFO] running `Command { std: "docker" "start" "-a" "b0eecd8fa2f013a1bc2ae6c8f4aaf9d94dce69c49f5814c7384dfb6bb299c45d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b0eecd8fa2f013a1bc2ae6c8f4aaf9d94dce69c49f5814c7384dfb6bb299c45d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b0eecd8fa2f013a1bc2ae6c8f4aaf9d94dce69c49f5814c7384dfb6bb299c45d", kill_on_drop: false }` [INFO] [stdout] b0eecd8fa2f013a1bc2ae6c8f4aaf9d94dce69c49f5814c7384dfb6bb299c45d [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] 682e2430ec22f7ba5934ba4b6d25650d7d2a35a110f0c73618d75759e166eeed [INFO] running `Command { std: "docker" "start" "-a" "682e2430ec22f7ba5934ba4b6d25650d7d2a35a110f0c73618d75759e166eeed", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.42 [INFO] [stderr] Compiling cc v1.0.17 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Compiling quote v0.3.15 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking cfg-if v0.1.3 [INFO] [stderr] Compiling serde v1.0.66 [INFO] [stderr] Checking rustc-demangle v0.1.8 [INFO] [stderr] Checking ucd-util v0.1.1 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Checking lazy_static v1.0.1 [INFO] [stderr] Checking utf8-ranges v1.0.0 [INFO] [stderr] Checking remove_dir_all v0.5.1 [INFO] [stderr] Checking itoa v0.4.1 [INFO] [stderr] Checking termcolor v0.3.6 [INFO] [stderr] Checking dtoa v0.4.2 [INFO] [stderr] Compiling proc-macro2 v0.4.6 [INFO] [stderr] Checking thread_local v0.3.5 [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Checking regex-syntax v0.5.6 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Compiling quote v0.6.3 [INFO] [stderr] Checking memchr v2.0.1 [INFO] [stderr] Checking rand v0.4.2 [INFO] [stderr] Compiling syn v0.14.2 [INFO] [stderr] Checking aho-corasick v0.6.4 [INFO] [stderr] Compiling backtrace-sys v0.1.23 [INFO] [stderr] Compiling synstructure v0.6.1 [INFO] [stderr] Checking uuid v0.6.5 [INFO] [stderr] Checking tempdir v0.3.7 [INFO] [stderr] Compiling failure_derive v0.1.1 [INFO] [stderr] Checking backtrace v0.3.8 [INFO] [stderr] Checking failure v0.1.1 [INFO] [stderr] Checking error-chain v0.11.0 [INFO] [stderr] Compiling serde_derive v1.0.66 [INFO] [stderr] Checking os_type v2.0.0 [INFO] [stderr] Checking toml v0.4.6 [INFO] [stderr] Checking serde_json v1.0.21 [INFO] [stderr] Checking human-panic v1.0.0 [INFO] [stderr] Checking cargo-demo v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:12:1 [INFO] [stdout] | [INFO] [stdout] 12 | / error_chain!{ [INFO] [stdout] 13 | | foreign_links { [INFO] [stdout] 14 | | Io(std::io::Error); [INFO] [stdout] 15 | | Utf8(std::string::FromUtf8Error); [INFO] [stdout] ... | [INFO] [stdout] 28 | | } [INFO] [stdout] 29 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:12:1 [INFO] [stdout] | [INFO] [stdout] 12 | / error_chain!{ [INFO] [stdout] 13 | | foreign_links { [INFO] [stdout] 14 | | Io(std::io::Error); [INFO] [stdout] 15 | | Utf8(std::string::FromUtf8Error); [INFO] [stdout] ... | [INFO] [stdout] 28 | | } [INFO] [stdout] 29 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::cause`: replaced by Error::source, which can support downcasting [INFO] [stdout] --> src/main.rs:12:1 [INFO] [stdout] | [INFO] [stdout] 12 | / error_chain!{ [INFO] [stdout] 13 | | foreign_links { [INFO] [stdout] 14 | | Io(std::io::Error); [INFO] [stdout] 15 | | Utf8(std::string::FromUtf8Error); [INFO] [stdout] ... | [INFO] [stdout] 28 | | } [INFO] [stdout] 29 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::cause`: replaced by Error::source, which can support downcasting [INFO] [stdout] --> src/main.rs:12:1 [INFO] [stdout] | [INFO] [stdout] 12 | / error_chain!{ [INFO] [stdout] 13 | | foreign_links { [INFO] [stdout] 14 | | Io(std::io::Error); [INFO] [stdout] 15 | | Utf8(std::string::FromUtf8Error); [INFO] [stdout] ... | [INFO] [stdout] 28 | | } [INFO] [stdout] 29 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info) [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 4.42s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.2 [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" "682e2430ec22f7ba5934ba4b6d25650d7d2a35a110f0c73618d75759e166eeed", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "682e2430ec22f7ba5934ba4b6d25650d7d2a35a110f0c73618d75759e166eeed", kill_on_drop: false }` [INFO] [stdout] 682e2430ec22f7ba5934ba4b6d25650d7d2a35a110f0c73618d75759e166eeed [INFO] checking sd-rust/cargo-demo against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsd-rust%2Fcargo-demo" "/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/sd-rust/cargo-demo 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/sd-rust/cargo-demo [INFO] finished tweaking git repo https://github.com/sd-rust/cargo-demo [INFO] tweaked toml for git repo https://github.com/sd-rust/cargo-demo written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/sd-rust/cargo-demo 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] 3eeb0d75a4bef2b0792f1fd1ff772bdd4a5839df618a6423d395fa4ed74f75a4 [INFO] running `Command { std: "docker" "start" "-a" "3eeb0d75a4bef2b0792f1fd1ff772bdd4a5839df618a6423d395fa4ed74f75a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3eeb0d75a4bef2b0792f1fd1ff772bdd4a5839df618a6423d395fa4ed74f75a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3eeb0d75a4bef2b0792f1fd1ff772bdd4a5839df618a6423d395fa4ed74f75a4", kill_on_drop: false }` [INFO] [stdout] 3eeb0d75a4bef2b0792f1fd1ff772bdd4a5839df618a6423d395fa4ed74f75a4 [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] 388d263a1b080ed2b075e4ef852dbbfb216f61c3468e94759ab61d9a4e5d9de0 [INFO] running `Command { std: "docker" "start" "-a" "388d263a1b080ed2b075e4ef852dbbfb216f61c3468e94759ab61d9a4e5d9de0", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.42 [INFO] [stderr] Compiling cc v1.0.17 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling quote v0.3.15 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling serde v1.0.66 [INFO] [stderr] Checking cfg-if v0.1.3 [INFO] [stderr] Checking rustc-demangle v0.1.8 [INFO] [stderr] Checking lazy_static v1.0.1 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Checking ucd-util v0.1.1 [INFO] [stderr] Checking utf8-ranges v1.0.0 [INFO] [stderr] Checking remove_dir_all v0.5.1 [INFO] [stderr] Checking dtoa v0.4.2 [INFO] [stderr] Checking termcolor v0.3.6 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking itoa v0.4.1 [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Compiling proc-macro2 v0.4.6 [INFO] [stderr] Checking regex-syntax v0.5.6 [INFO] [stderr] Checking thread_local v0.3.5 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Compiling quote v0.6.3 [INFO] [stderr] Checking memchr v2.0.1 [INFO] [stderr] Checking rand v0.4.2 [INFO] [stderr] Checking aho-corasick v0.6.4 [INFO] [stderr] Compiling syn v0.14.2 [INFO] [stderr] Compiling backtrace-sys v0.1.23 [INFO] [stderr] Checking uuid v0.6.5 [INFO] [stderr] Checking tempdir v0.3.7 [INFO] [stderr] Compiling synstructure v0.6.1 [INFO] [stderr] Compiling failure_derive v0.1.1 [INFO] [stderr] Checking backtrace v0.3.8 [INFO] [stderr] Checking failure v0.1.1 [INFO] [stderr] Checking error-chain v0.11.0 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-0.2.11/src/exec.rs:756:13 [INFO] [stdout] | [INFO] [stdout] 756 | / match dfa::Fsm::reverse( [INFO] [stdout] 757 | | &self.ro.dfa_reverse, [INFO] [stdout] 758 | | self.cache, [INFO] [stdout] 759 | | false, [INFO] [stdout] ... | [INFO] [stdout] 766 | | Quit => return Some(Quit), [INFO] [stdout] 767 | | }; [INFO] [stdout] | |_____________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling serde_derive v1.0.66 [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" "388d263a1b080ed2b075e4ef852dbbfb216f61c3468e94759ab61d9a4e5d9de0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "388d263a1b080ed2b075e4ef852dbbfb216f61c3468e94759ab61d9a4e5d9de0", kill_on_drop: false }` [INFO] [stdout] 388d263a1b080ed2b075e4ef852dbbfb216f61c3468e94759ab61d9a4e5d9de0