[INFO] fetching crate tb_normalization 1.0.0... [INFO] checking tb_normalization-1.0.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate tb_normalization 1.0.0 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate tb_normalization 1.0.0 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 tb_normalization 1.0.0 [INFO] finished tweaking crates.io crate tb_normalization 1.0.0 [INFO] tweaked toml for crates.io crate tb_normalization 1.0.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate crates.io crate tb_normalization 1.0.0 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 thread_local v1.1.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f563285f93fbaff708c76f16f671d865fd8e847f3d07c66f19a7dc370b2933f6 [INFO] running `Command { std: "docker" "start" "-a" "f563285f93fbaff708c76f16f671d865fd8e847f3d07c66f19a7dc370b2933f6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f563285f93fbaff708c76f16f671d865fd8e847f3d07c66f19a7dc370b2933f6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f563285f93fbaff708c76f16f671d865fd8e847f3d07c66f19a7dc370b2933f6", kill_on_drop: false }` [INFO] [stdout] f563285f93fbaff708c76f16f671d865fd8e847f3d07c66f19a7dc370b2933f6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 1b5a876b17c9421857bedb0796c17e8446d7ea4a1945ae573d725c67b3fd6132 [INFO] running `Command { std: "docker" "start" "-a" "1b5a876b17c9421857bedb0796c17e8446d7ea4a1945ae573d725c67b3fd6132", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking once_cell v1.5.2 [INFO] [stderr] Checking tinyvec_macros v0.1.0 [INFO] [stderr] Checking regex-syntax v0.6.22 [INFO] [stderr] Checking tinyvec v1.1.1 [INFO] [stderr] Checking thread_local v1.1.2 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Checking unicode-normalization v0.1.16 [INFO] [stderr] Checking regex v1.4.3 [INFO] [stderr] Checking tb_normalization v1.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/unicode.rs:12:36 [INFO] [stdout] | [INFO] [stdout] 12 | let c = string_to_static_str(s).clone().nfd().collect::(); [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` 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: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/unicode.rs:44:30 [INFO] [stdout] | [INFO] [stdout] 44 | tb_normalization(self.clone().to_string()) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/unicode.rs:12:36 [INFO] [stdout] | [INFO] [stdout] 12 | let c = string_to_static_str(s).clone().nfd().collect::(); [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` 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: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/unicode.rs:44:30 [INFO] [stdout] | [INFO] [stdout] 44 | tb_normalization(self.clone().to_string()) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/unicode.rs:47:39 [INFO] [stdout] | [INFO] [stdout] 47 | remove_special_characters(self.clone().to_string()) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/unicode.rs:47:39 [INFO] [stdout] | [INFO] [stdout] 47 | remove_special_characters(self.clone().to_string()) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.00s [INFO] running `Command { std: "docker" "inspect" "1b5a876b17c9421857bedb0796c17e8446d7ea4a1945ae573d725c67b3fd6132", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1b5a876b17c9421857bedb0796c17e8446d7ea4a1945ae573d725c67b3fd6132", kill_on_drop: false }` [INFO] [stdout] 1b5a876b17c9421857bedb0796c17e8446d7ea4a1945ae573d725c67b3fd6132 [INFO] checking tb_normalization-1.0.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate tb_normalization 1.0.0 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate tb_normalization 1.0.0 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 tb_normalization 1.0.0 [INFO] finished tweaking crates.io crate tb_normalization 1.0.0 [INFO] tweaked toml for crates.io crate tb_normalization 1.0.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate crates.io crate tb_normalization 1.0.0 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 526864d74471b05c5930fe4175238141e4d103e1751e91f5d5342dfaa4869bac [INFO] running `Command { std: "docker" "start" "-a" "526864d74471b05c5930fe4175238141e4d103e1751e91f5d5342dfaa4869bac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "526864d74471b05c5930fe4175238141e4d103e1751e91f5d5342dfaa4869bac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "526864d74471b05c5930fe4175238141e4d103e1751e91f5d5342dfaa4869bac", kill_on_drop: false }` [INFO] [stdout] 526864d74471b05c5930fe4175238141e4d103e1751e91f5d5342dfaa4869bac [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f3d44e6af4c72b37fc62a07a5d7d25ad753db59768e59e6b33f6a9da8b465f6a [INFO] running `Command { std: "docker" "start" "-a" "f3d44e6af4c72b37fc62a07a5d7d25ad753db59768e59e6b33f6a9da8b465f6a", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking tinyvec_macros v0.1.0 [INFO] [stderr] Checking once_cell v1.5.2 [INFO] [stderr] Checking regex-syntax v0.6.22 [INFO] [stderr] Checking tinyvec v1.1.1 [INFO] [stderr] Checking thread_local v1.1.2 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Checking unicode-normalization v0.1.16 [INFO] [stderr] Checking regex v1.4.3 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.4.3/src/exec.rs:841:13 [INFO] [stdout] | [INFO] [stdout] 841 | / match dfa::Fsm::reverse( [INFO] [stdout] 842 | | &self.ro.dfa_reverse, [INFO] [stdout] 843 | | self.cache.value(), [INFO] [stdout] 844 | | false, [INFO] [stdout] ... | [INFO] [stdout] 855 | | Quit => return Some(Quit), [INFO] [stdout] 856 | | }; [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" "f3d44e6af4c72b37fc62a07a5d7d25ad753db59768e59e6b33f6a9da8b465f6a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f3d44e6af4c72b37fc62a07a5d7d25ad753db59768e59e6b33f6a9da8b465f6a", kill_on_drop: false }` [INFO] [stdout] f3d44e6af4c72b37fc62a07a5d7d25ad753db59768e59e6b33f6a9da8b465f6a