[INFO] fetching crate jarvis 0.3.0... [INFO] checking jarvis-0.3.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate jarvis 0.3.0 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate jarvis 0.3.0 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 jarvis 0.3.0 [INFO] finished tweaking crates.io crate jarvis 0.3.0 [INFO] tweaked toml for crates.io crate jarvis 0.3.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate crates.io crate jarvis 0.3.0 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 config v0.9.3 [INFO] [stderr] Downloaded serde-hjson v0.8.2 [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] c8945b96d9a9706747ea6d7c67cc5564da7f8b0a10378decf3edff58f5f8b081 [INFO] running `Command { std: "docker" "start" "-a" "c8945b96d9a9706747ea6d7c67cc5564da7f8b0a10378decf3edff58f5f8b081", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c8945b96d9a9706747ea6d7c67cc5564da7f8b0a10378decf3edff58f5f8b081", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c8945b96d9a9706747ea6d7c67cc5564da7f8b0a10378decf3edff58f5f8b081", kill_on_drop: false }` [INFO] [stdout] c8945b96d9a9706747ea6d7c67cc5564da7f8b0a10378decf3edff58f5f8b081 [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] f41ff9f2876e35cb7be65902d4c428233de920f20f1e9362d0371f4cdf301833 [INFO] running `Command { std: "docker" "start" "-a" "f41ff9f2876e35cb7be65902d4c428233de920f20f1e9362d0371f4cdf301833", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling serde v1.0.114 [INFO] [stderr] Checking serde v0.8.23 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Compiling serde_json v1.0.56 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Checking lazy_static v0.2.11 [INFO] [stderr] Checking linked-hash-map v0.5.3 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking yaml-rust v0.4.4 [INFO] [stderr] Checking rust-ini v0.13.0 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking serde_test v0.8.23 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking linked-hash-map v0.3.0 [INFO] [stderr] Checking serde-hjson v0.8.2 [INFO] [stderr] Checking toml v0.4.10 [INFO] [stderr] Checking config v0.9.3 [INFO] [stderr] Checking jarvis v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `config` is imported redundantly [INFO] [stdout] --> src/lib.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use config; [INFO] [stdout] | ^^^^^^ the item `config` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `config` is imported redundantly [INFO] [stdout] --> src/lib.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use config; [INFO] [stdout] | ^^^^^^ the item `config` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/lib.rs:33:21 [INFO] [stdout] | [INFO] [stdout] 33 | args: self.args.clone() [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `[String]` does not implement `Clone`, so calling `clone` on `&[String]` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/lib.rs:33:21 [INFO] [stdout] | [INFO] [stdout] 33 | args: self.args.clone() [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `[String]` does not implement `Clone`, so calling `clone` on `&[String]` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [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] [stdout] warning: the item `Command` is imported redundantly [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | use jarvis::*; [INFO] [stdout] | --------- the item `Command` is already imported here [INFO] [stdout] 7 | use jarvis::Command; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Command` is imported redundantly [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | use jarvis::*; [INFO] [stdout] | --------- the item `Command` is already imported here [INFO] [stdout] 7 | use jarvis::Command; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.69s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3 [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" "f41ff9f2876e35cb7be65902d4c428233de920f20f1e9362d0371f4cdf301833", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f41ff9f2876e35cb7be65902d4c428233de920f20f1e9362d0371f4cdf301833", kill_on_drop: false }` [INFO] [stdout] f41ff9f2876e35cb7be65902d4c428233de920f20f1e9362d0371f4cdf301833 [INFO] checking jarvis-0.3.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate jarvis 0.3.0 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate jarvis 0.3.0 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 jarvis 0.3.0 [INFO] finished tweaking crates.io crate jarvis 0.3.0 [INFO] tweaked toml for crates.io crate jarvis 0.3.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate crates.io crate jarvis 0.3.0 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] 1c879afacf6a075e010242b1fd9011370b495fecaa7b2a3e5d22eb2eda40374f [INFO] running `Command { std: "docker" "start" "-a" "1c879afacf6a075e010242b1fd9011370b495fecaa7b2a3e5d22eb2eda40374f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1c879afacf6a075e010242b1fd9011370b495fecaa7b2a3e5d22eb2eda40374f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1c879afacf6a075e010242b1fd9011370b495fecaa7b2a3e5d22eb2eda40374f", kill_on_drop: false }` [INFO] [stdout] 1c879afacf6a075e010242b1fd9011370b495fecaa7b2a3e5d22eb2eda40374f [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] 1f4a436abb396fc8ea7defd35097595df8adcd28edc6ffa78718e837835f9faa [INFO] running `Command { std: "docker" "start" "-a" "1f4a436abb396fc8ea7defd35097595df8adcd28edc6ffa78718e837835f9faa", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling serde v1.0.114 [INFO] [stderr] Checking serde v0.8.23 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Compiling serde_json v1.0.56 [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Checking lazy_static v0.2.11 [INFO] [stderr] Checking linked-hash-map v0.5.3 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Checking yaml-rust v0.4.4 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking rust-ini v0.13.0 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking serde_test v0.8.23 [INFO] [stderr] Checking linked-hash-map v0.3.0 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.3.9/src/exec.rs:836:13 [INFO] [stdout] | [INFO] [stdout] 836 | / match dfa::Fsm::reverse( [INFO] [stdout] 837 | | &self.ro.dfa_reverse, [INFO] [stdout] 838 | | self.cache.value(), [INFO] [stdout] 839 | | false, [INFO] [stdout] ... | [INFO] [stdout] 850 | | Quit => return Some(Quit), [INFO] [stdout] 851 | | }; [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] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "1f4a436abb396fc8ea7defd35097595df8adcd28edc6ffa78718e837835f9faa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f4a436abb396fc8ea7defd35097595df8adcd28edc6ffa78718e837835f9faa", kill_on_drop: false }` [INFO] [stdout] 1f4a436abb396fc8ea7defd35097595df8adcd28edc6ffa78718e837835f9faa