[INFO] fetching crate btfs 0.0.4... [INFO] checking btfs-0.0.4 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate btfs 0.0.4 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate btfs 0.0.4 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 btfs 0.0.4 [INFO] finished tweaking crates.io crate btfs 0.0.4 [INFO] tweaked toml for crates.io crate btfs 0.0.4 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate crates.io crate btfs 0.0.4 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 wincolor v1.0.2 [INFO] [stderr] Downloaded thread-scoped v1.0.2 [INFO] [stderr] Downloaded winapi-util v0.1.2 [INFO] [stderr] Downloaded quick-error v1.2.2 [INFO] [stderr] Downloaded pkg-config v0.3.16 [INFO] [stderr] Downloaded termcolor v1.0.5 [INFO] [stderr] Downloaded fuse v0.3.1 [INFO] [stderr] Downloaded libc v0.2.62 [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] 31da927830c384427aeb730bdc27f1736a535a5e036df0dda2b8b0f45839b1ab [INFO] running `Command { std: "docker" "start" "-a" "31da927830c384427aeb730bdc27f1736a535a5e036df0dda2b8b0f45839b1ab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "31da927830c384427aeb730bdc27f1736a535a5e036df0dda2b8b0f45839b1ab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "31da927830c384427aeb730bdc27f1736a535a5e036df0dda2b8b0f45839b1ab", kill_on_drop: false }` [INFO] [stdout] 31da927830c384427aeb730bdc27f1736a535a5e036df0dda2b8b0f45839b1ab [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] 688ce4ccccb3faf953cb1a7c07e867e2245cb6cd32f58965e02f0a5b8594ed79 [INFO] running `Command { std: "docker" "start" "-a" "688ce4ccccb3faf953cb1a7c07e867e2245cb6cd32f58965e02f0a5b8594ed79", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling pkg-config v0.3.16 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking termcolor v1.0.5 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking thread-scoped v1.0.2 [INFO] [stderr] Compiling fuse v0.3.1 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stderr] Checking env_logger v0.6.2 [INFO] [stderr] Checking btfs v0.0.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:187:13 [INFO] [stdout] | [INFO] [stdout] 187 | let mut file_attrs = self.attrs.get_mut(&ino).ok_or(Error::NoEntry)?; [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:187:13 [INFO] [stdout] | [INFO] [stdout] 187 | let mut file_attrs = self.attrs.get_mut(&ino).ok_or(Error::NoEntry)?; [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` 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 1.60s [INFO] running `Command { std: "docker" "inspect" "688ce4ccccb3faf953cb1a7c07e867e2245cb6cd32f58965e02f0a5b8594ed79", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "688ce4ccccb3faf953cb1a7c07e867e2245cb6cd32f58965e02f0a5b8594ed79", kill_on_drop: false }` [INFO] [stdout] 688ce4ccccb3faf953cb1a7c07e867e2245cb6cd32f58965e02f0a5b8594ed79 [INFO] checking btfs-0.0.4 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate btfs 0.0.4 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate btfs 0.0.4 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 btfs 0.0.4 [INFO] finished tweaking crates.io crate btfs 0.0.4 [INFO] tweaked toml for crates.io crate btfs 0.0.4 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate crates.io crate btfs 0.0.4 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] 22192cad10c6984e4e207ad1c49380d425060e21fa034523cd66bc7544beae76 [INFO] running `Command { std: "docker" "start" "-a" "22192cad10c6984e4e207ad1c49380d425060e21fa034523cd66bc7544beae76", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "22192cad10c6984e4e207ad1c49380d425060e21fa034523cd66bc7544beae76", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "22192cad10c6984e4e207ad1c49380d425060e21fa034523cd66bc7544beae76", kill_on_drop: false }` [INFO] [stdout] 22192cad10c6984e4e207ad1c49380d425060e21fa034523cd66bc7544beae76 [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] 24f8433fef9c690560cc0eef3d20f94a2ada1161f43df159bc799ddf43fe830a [INFO] running `Command { std: "docker" "start" "-a" "24f8433fef9c690560cc0eef3d20f94a2ada1161f43df159bc799ddf43fe830a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling pkg-config v0.3.16 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking thread-scoped v1.0.2 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking termcolor v1.0.5 [INFO] [stderr] Compiling fuse v0.3.1 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.3.1/src/exec.rs:838:13 [INFO] [stdout] | [INFO] [stdout] 838 | / match dfa::Fsm::reverse( [INFO] [stdout] 839 | | &self.ro.dfa_reverse, [INFO] [stdout] 840 | | self.cache.value(), [INFO] [stdout] 841 | | false, [INFO] [stdout] ... | [INFO] [stdout] 852 | | Quit => return Some(Quit), [INFO] [stdout] 853 | | }; [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" "24f8433fef9c690560cc0eef3d20f94a2ada1161f43df159bc799ddf43fe830a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "24f8433fef9c690560cc0eef3d20f94a2ada1161f43df159bc799ddf43fe830a", kill_on_drop: false }` [INFO] [stdout] 24f8433fef9c690560cc0eef3d20f94a2ada1161f43df159bc799ddf43fe830a