[INFO] fetching crate sobani-tracker 0.1.0... [INFO] checking sobani-tracker-0.1.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate sobani-tracker 0.1.0 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate sobani-tracker 0.1.0 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 sobani-tracker 0.1.0 [INFO] finished tweaking crates.io crate sobani-tracker 0.1.0 [INFO] tweaked toml for crates.io crate sobani-tracker 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate crates.io crate sobani-tracker 0.1.0 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 winapi-util v0.1.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 8cc90da423cbc389ae672ffc1634f0d8b35edd2d5670a343cec063b8e1ebbd19 [INFO] running `Command { std: "docker" "start" "-a" "8cc90da423cbc389ae672ffc1634f0d8b35edd2d5670a343cec063b8e1ebbd19", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8cc90da423cbc389ae672ffc1634f0d8b35edd2d5670a343cec063b8e1ebbd19", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8cc90da423cbc389ae672ffc1634f0d8b35edd2d5670a343cec063b8e1ebbd19", kill_on_drop: false }` [INFO] [stdout] 8cc90da423cbc389ae672ffc1634f0d8b35edd2d5670a343cec063b8e1ebbd19 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d608527b40eaa8fc739c0faab3e38e0b68d67b3e6e3c7da5303e3cb08a245575 [INFO] running `Command { std: "docker" "start" "-a" "d608527b40eaa8fc739c0faab3e38e0b68d67b3e6e3c7da5303e3cb08a245575", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking byte-tools v0.3.1 [INFO] [stderr] Compiling ryu v1.0.3 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking regex-syntax v0.6.17 [INFO] [stderr] Compiling serde v1.0.106 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking block-padding v0.1.5 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking termcolor v1.1.0 [INFO] [stderr] Checking itoa v0.4.5 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking pin-project-lite v0.1.4 [INFO] [stderr] Checking futures-timer v2.0.2 [INFO] [stderr] Checking futures-io v0.3.4 [INFO] [stderr] Checking futures-core v0.3.4 [INFO] [stderr] Checking fake-simd v0.1.2 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Checking opaque-debug v0.2.3 [INFO] [stderr] Checking once_cell v1.3.1 [INFO] [stderr] Checking pin-utils v0.1.0-alpha.4 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking hex v0.4.2 [INFO] [stderr] Checking aho-corasick v0.7.10 [INFO] [stderr] Checking kv-log-macro v1.0.4 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking async-task v1.3.1 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Checking mio v0.6.21 [INFO] [stderr] Checking crossbeam-channel v0.4.2 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking generic-array v0.12.3 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking sha2 v0.8.1 [INFO] [stderr] Checking regex v1.3.6 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking pretty_env_logger v0.4.0 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Compiling async-attributes v1.1.1 [INFO] [stderr] Checking async-std v1.5.0 [INFO] [stderr] Checking serde_json v1.0.51 [INFO] [stderr] Checking sobani-tracker v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/main.rs:25:26 [INFO] [stdout] | [INFO] [stdout] 25 | Err(f) => panic!(f.to_string()), [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 25 | Err(f) => panic!("{}", f.to_string()), [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/main.rs:25:26 [INFO] [stdout] | [INFO] [stdout] 25 | Err(f) => panic!(f.to_string()), [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 25 | Err(f) => panic!("{}", f.to_string()), [INFO] [stdout] | +++++ [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 11.71s [INFO] running `Command { std: "docker" "inspect" "d608527b40eaa8fc739c0faab3e38e0b68d67b3e6e3c7da5303e3cb08a245575", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d608527b40eaa8fc739c0faab3e38e0b68d67b3e6e3c7da5303e3cb08a245575", kill_on_drop: false }` [INFO] [stdout] d608527b40eaa8fc739c0faab3e38e0b68d67b3e6e3c7da5303e3cb08a245575 [INFO] checking sobani-tracker-0.1.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate sobani-tracker 0.1.0 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate sobani-tracker 0.1.0 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 sobani-tracker 0.1.0 [INFO] finished tweaking crates.io crate sobani-tracker 0.1.0 [INFO] tweaked toml for crates.io crate sobani-tracker 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate crates.io crate sobani-tracker 0.1.0 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 982ff85fac25798d98d8a4af6e5be8ac31bae4c74f9811331515340473e763eb [INFO] running `Command { std: "docker" "start" "-a" "982ff85fac25798d98d8a4af6e5be8ac31bae4c74f9811331515340473e763eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "982ff85fac25798d98d8a4af6e5be8ac31bae4c74f9811331515340473e763eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "982ff85fac25798d98d8a4af6e5be8ac31bae4c74f9811331515340473e763eb", kill_on_drop: false }` [INFO] [stdout] 982ff85fac25798d98d8a4af6e5be8ac31bae4c74f9811331515340473e763eb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 5cb09d5fc484ce7f80294a08bd826d9473dab85f0d1c0e05b4c2ac957a6823a8 [INFO] running `Command { std: "docker" "start" "-a" "5cb09d5fc484ce7f80294a08bd826d9473dab85f0d1c0e05b4c2ac957a6823a8", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking byte-tools v0.3.1 [INFO] [stderr] Compiling ryu v1.0.3 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking regex-syntax v0.6.17 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Compiling serde v1.0.106 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking block-padding v0.1.5 [INFO] [stderr] Checking termcolor v1.1.0 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking pin-utils v0.1.0-alpha.4 [INFO] [stderr] Checking itoa v0.4.5 [INFO] [stderr] Checking pin-project-lite v0.1.4 [INFO] [stderr] Checking futures-core v0.3.4 [INFO] [stderr] Checking fake-simd v0.1.2 [INFO] [stderr] Checking futures-io v0.3.4 [INFO] [stderr] Checking futures-timer v2.0.2 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking opaque-debug v0.2.3 [INFO] [stderr] Checking once_cell v1.3.1 [INFO] [stderr] Checking hex v0.4.2 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking kv-log-macro v1.0.4 [INFO] [stderr] Checking aho-corasick v0.7.10 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking async-task v1.3.1 [INFO] [stderr] Checking mio v0.6.21 [INFO] [stderr] Checking crossbeam-channel v0.4.2 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking generic-array v0.12.3 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Checking sha2 v0.8.1 [INFO] [stderr] Checking regex v1.3.6 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.3.6/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" "5cb09d5fc484ce7f80294a08bd826d9473dab85f0d1c0e05b4c2ac957a6823a8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5cb09d5fc484ce7f80294a08bd826d9473dab85f0d1c0e05b4c2ac957a6823a8", kill_on_drop: false }` [INFO] [stdout] 5cb09d5fc484ce7f80294a08bd826d9473dab85f0d1c0e05b4c2ac957a6823a8