[INFO] fetching crate fern-run 0.0.2... [INFO] checking fern-run-0.0.2 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate fern-run 0.0.2 into /workspace/builds/worker-1-tc1/source [INFO] validating manifest of crates.io crate fern-run 0.0.2 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 fern-run 0.0.2 [INFO] finished tweaking crates.io crate fern-run 0.0.2 [INFO] tweaked toml for crates.io crate fern-run 0.0.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate crates.io crate fern-run 0.0.2 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 serde_yaml v0.8.11 [INFO] [stderr] Downloaded proc-macro2 v1.0.9 [INFO] [stderr] Downloaded predicates-core v1.0.0 [INFO] [stderr] Downloaded snafu v0.6.3 [INFO] [stderr] Downloaded treeline v0.1.0 [INFO] [stderr] Downloaded predicates-tree v1.0.0 [INFO] [stderr] Downloaded linked-hash-map v0.5.2 [INFO] [stderr] Downloaded snafu-derive v0.6.3 [INFO] [stderr] Downloaded escargot v0.5.0 [INFO] [stderr] Downloaded assert_cmd v0.12.0 [INFO] [stderr] Downloaded globwalk v0.7.3 [INFO] [stderr] Downloaded serde_json v1.0.48 [INFO] [stderr] Downloaded crossbeam-channel v0.4.2 [INFO] [stderr] Downloaded syn v1.0.16 [INFO] [stderr] Downloaded bstr v0.2.12 [INFO] [stderr] Downloaded globset v0.4.5 [INFO] [stderr] Downloaded ignore v0.4.12 [INFO] [stderr] Downloaded assert_fs v0.13.1 [INFO] [stderr] Downloaded dirs-sys v0.3.4 [INFO] [stderr] Downloaded dirs v2.0.2 [INFO] [stderr] Downloaded pico-args v0.3.1 [INFO] [stderr] Downloaded float-cmp v0.6.0 [INFO] [stderr] Downloaded predicates v1.0.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 4fb718285b24733893ff94145ce107e5c2e9d1ef9d5ddc0fa11d659254a2ae93 [INFO] running `Command { std: "docker" "start" "-a" "4fb718285b24733893ff94145ce107e5c2e9d1ef9d5ddc0fa11d659254a2ae93", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4fb718285b24733893ff94145ce107e5c2e9d1ef9d5ddc0fa11d659254a2ae93", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4fb718285b24733893ff94145ce107e5c2e9d1ef9d5ddc0fa11d659254a2ae93", kill_on_drop: false }` [INFO] [stdout] 4fb718285b24733893ff94145ce107e5c2e9d1ef9d5ddc0fa11d659254a2ae93 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 67bc7853396dace01901c883adb4517f0cc7ded3f10b4c50e5774962d600dc9a [INFO] running `Command { std: "docker" "start" "-a" "67bc7853396dace01901c883adb4517f0cc7ded3f10b4c50e5774962d600dc9a", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.9 [INFO] [stderr] Compiling syn v1.0.16 [INFO] [stderr] Checking regex-syntax v0.6.17 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling serde v1.0.104 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking predicates-core v1.0.0 [INFO] [stderr] Checking aho-corasick v0.7.10 [INFO] [stderr] Checking bstr v0.2.12 [INFO] [stderr] Checking float-cmp v0.6.0 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking linked-hash-map v0.5.2 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Compiling escargot v0.5.0 [INFO] [stderr] Checking dirs-sys v0.3.4 [INFO] [stderr] Checking predicates-tree v1.0.0 [INFO] [stderr] Checking dtoa v0.4.5 [INFO] [stderr] Checking pico-args v0.3.1 [INFO] [stderr] Checking yaml-rust v0.4.3 [INFO] [stderr] Checking dirs v2.0.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking crossbeam-channel v0.4.2 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Checking regex v1.3.5 [INFO] [stderr] Checking globset v0.4.5 [INFO] [stderr] Checking predicates v1.0.4 [INFO] [stderr] Checking ignore v0.4.12 [INFO] [stderr] Checking globwalk v0.7.3 [INFO] [stderr] Checking assert_fs v0.13.1 [INFO] [stderr] Compiling serde_derive v1.0.104 [INFO] [stderr] Compiling snafu-derive v0.6.3 [INFO] [stderr] Checking snafu v0.6.3 [INFO] [stderr] Checking serde_json v1.0.48 [INFO] [stderr] Checking serde_yaml v0.8.11 [INFO] [stderr] Checking fern-run v0.0.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: variant `CouldNotReadFile` is never constructed [INFO] [stdout] --> src/main.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 18 | enum Error { [INFO] [stdout] | ----- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 26 | CouldNotReadFile { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking assert_cmd v0.12.0 [INFO] [stdout] warning: unused import: `prelude::PredicateBooleanExt` [INFO] [stdout] --> tests/./utils.rs:5:22 [INFO] [stdout] | [INFO] [stdout] 5 | pub use predicates::{prelude::PredicateBooleanExt, str::contains as c}; [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: variant `CouldNotReadFile` is never constructed [INFO] [stdout] --> src/main.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 18 | enum Error { [INFO] [stdout] | ----- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 26 | CouldNotReadFile { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.39s [INFO] running `Command { std: "docker" "inspect" "67bc7853396dace01901c883adb4517f0cc7ded3f10b4c50e5774962d600dc9a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "67bc7853396dace01901c883adb4517f0cc7ded3f10b4c50e5774962d600dc9a", kill_on_drop: false }` [INFO] [stdout] 67bc7853396dace01901c883adb4517f0cc7ded3f10b4c50e5774962d600dc9a [INFO] checking fern-run-0.0.2 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate fern-run 0.0.2 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate fern-run 0.0.2 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 fern-run 0.0.2 [INFO] finished tweaking crates.io crate fern-run 0.0.2 [INFO] tweaked toml for crates.io crate fern-run 0.0.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate crates.io crate fern-run 0.0.2 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] b9f7458e0a4faeb42d4923883d6b236ce643cadd80a222abf31251062c2833b4 [INFO] running `Command { std: "docker" "start" "-a" "b9f7458e0a4faeb42d4923883d6b236ce643cadd80a222abf31251062c2833b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b9f7458e0a4faeb42d4923883d6b236ce643cadd80a222abf31251062c2833b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b9f7458e0a4faeb42d4923883d6b236ce643cadd80a222abf31251062c2833b4", kill_on_drop: false }` [INFO] [stdout] b9f7458e0a4faeb42d4923883d6b236ce643cadd80a222abf31251062c2833b4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 6b4f6ecd1d195dd5ef706cacf6bd104d626cb187b9787ad2a23a8e0b8d893d9c [INFO] running `Command { std: "docker" "start" "-a" "6b4f6ecd1d195dd5ef706cacf6bd104d626cb187b9787ad2a23a8e0b8d893d9c", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.9 [INFO] [stderr] Compiling syn v1.0.16 [INFO] [stderr] Checking regex-syntax v0.6.17 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Compiling serde v1.0.104 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Compiling ryu v1.0.3 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking ppv-lite86 v0.2.6 [INFO] [stderr] Checking aho-corasick v0.7.10 [INFO] [stderr] Checking bstr v0.2.12 [INFO] [stderr] Checking getrandom v0.1.14 [INFO] [stderr] Checking predicates-core v1.0.0 [INFO] [stderr] Checking float-cmp v0.6.0 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Compiling escargot v0.5.0 [INFO] [stderr] Checking linked-hash-map v0.5.2 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Checking predicates-tree v1.0.0 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking dirs-sys v0.3.4 [INFO] [stderr] Checking dtoa v0.4.5 [INFO] [stderr] Checking remove_dir_all v0.5.2 [INFO] [stderr] Checking pico-args v0.3.1 [INFO] [stderr] Checking dirs v2.0.2 [INFO] [stderr] Checking yaml-rust v0.4.3 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking crossbeam-channel v0.4.2 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Checking regex v1.3.5 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.3.5/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" "6b4f6ecd1d195dd5ef706cacf6bd104d626cb187b9787ad2a23a8e0b8d893d9c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6b4f6ecd1d195dd5ef706cacf6bd104d626cb187b9787ad2a23a8e0b8d893d9c", kill_on_drop: false }` [INFO] [stdout] 6b4f6ecd1d195dd5ef706cacf6bd104d626cb187b9787ad2a23a8e0b8d893d9c