[INFO] fetching crate jcompiler 0.1.0... [INFO] checking jcompiler-0.1.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate jcompiler 0.1.0 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate jcompiler 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 jcompiler 0.1.0 [INFO] finished tweaking crates.io crate jcompiler 0.1.0 [INFO] tweaked toml for crates.io crate jcompiler 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 63 packages [INFO] [stderr] Adding aho-corasick v0.5.3 (latest: v1.1.3) [INFO] [stderr] Adding ansi_term v0.9.0 (latest: v0.12.1) [INFO] [stderr] Adding env_logger v0.3.5 (latest: v0.11.3) [INFO] [stderr] Adding generic-array v0.14.7 (latest: v1.0.0) [INFO] [stderr] Adding itertools v0.4.19 (latest: v0.12.1) [INFO] [stderr] Adding llvm-sys v70.4.0 (latest: v181.0.0) [INFO] [stderr] Adding log v0.3.9 (latest: v0.4.21) [INFO] [stderr] Adding memchr v0.1.11 (latest: v2.7.2) [INFO] [stderr] Adding quickcheck v0.3.2 (latest: v1.0.3) [INFO] [stderr] Adding rand v0.3.23 (latest: v0.8.5) [INFO] [stderr] Adding rand v0.4.6 (latest: v0.8.5) [INFO] [stderr] Adding rand_core v0.3.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (latest: v0.6.4) [INFO] [stderr] Adding rdrand v0.4.0 (latest: v0.8.3) [INFO] [stderr] Adding redox_syscall v0.1.57 (latest: v0.5.1) [INFO] [stderr] Adding regex v0.1.80 (latest: v1.10.4) [INFO] [stderr] Adding regex-syntax v0.3.9 (latest: v0.8.3) [INFO] [stderr] Adding semver v0.9.0 (latest: v1.0.22) [INFO] [stderr] Adding semver-parser v0.7.0 (latest: v0.10.2) [INFO] [stderr] Adding tempfile v2.2.0 (latest: v3.10.1) [INFO] [stderr] Adding thread-id v2.0.0 (latest: v4.2.1) [INFO] [stderr] Adding thread_local v0.2.7 (latest: v1.1.8) [INFO] [stderr] Adding utf8-ranges v0.1.3 (latest: v1.0.5) [INFO] [stderr] Adding winapi v0.2.8 (latest: v0.3.9) [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 ansi_term v0.9.0 [INFO] [stderr] Downloaded quickcheck v0.3.2 [INFO] [stderr] Downloaded llvm-sys v70.4.0 [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] 377f9faadef9681260f222e1546fc9d65c1d0cca195405c2e74c293a1d8d734d [INFO] running `Command { std: "docker" "start" "-a" "377f9faadef9681260f222e1546fc9d65c1d0cca195405c2e74c293a1d8d734d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "377f9faadef9681260f222e1546fc9d65c1d0cca195405c2e74c293a1d8d734d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "377f9faadef9681260f222e1546fc9d65c1d0cca195405c2e74c293a1d8d734d", kill_on_drop: false }` [INFO] [stdout] 377f9faadef9681260f222e1546fc9d65c1d0cca195405c2e74c293a1d8d734d [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] a6e38e894001ec4ae4e8d7400493d468d4e80da28a5132247e0d7393d2d1634f [INFO] running `Command { std: "docker" "start" "-a" "a6e38e894001ec4ae4e8d7400493d468d4e80da28a5132247e0d7393d2d1634f", kill_on_drop: false }` [INFO] [stderr] Compiling ucd-trie v0.1.6 [INFO] [stderr] Compiling llvm-sys v70.4.0 [INFO] [stderr] Checking tempfile v2.2.0 [INFO] [stderr] Compiling thiserror v1.0.58 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking quickcheck v0.3.2 [INFO] [stderr] Checking itertools v0.4.19 [INFO] [stderr] Checking ansi_term v0.9.0 [INFO] [stderr] Checking pest v2.7.9 [INFO] [stderr] Compiling pest_meta v2.7.9 [INFO] [stderr] Compiling pest_generator v2.7.9 [INFO] [stderr] Compiling pest_derive v2.7.9 [INFO] [stderr] Checking jcompiler v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `init_bb` [INFO] [stdout] --> src/lib/llvm.rs:27:10 [INFO] [stdout] | [INFO] [stdout] 27 | let (init_bb, mut bb) = add_initial_bbs(&mut module, main_fn); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_init_bb` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `init_bb` [INFO] [stdout] --> src/lib/llvm.rs:27:10 [INFO] [stdout] | [INFO] [stdout] 27 | let (init_bb, mut bb) = add_initial_bbs(&mut module, main_fn); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_init_bb` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `LLVM_TRUE` is never used [INFO] [stdout] --> src/lib/llvm.rs:17:7 [INFO] [stdout] | [INFO] [stdout] 17 | const LLVM_TRUE: LLVMBool = 1; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `CompileContext` is never constructed [INFO] [stdout] --> src/lib/llvm.rs:262:8 [INFO] [stdout] | [INFO] [stdout] 262 | struct CompileContext { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `int8` is never used [INFO] [stdout] --> src/lib/llvm.rs:270:11 [INFO] [stdout] | [INFO] [stdout] 270 | unsafe fn int8(val: c_ulonglong) -> LLVMValueRef { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `compile_static_outputs` is never used [INFO] [stdout] --> src/lib/llvm.rs:439:4 [INFO] [stdout] | [INFO] [stdout] 439 | fn compile_static_outputs(module: &mut Module, bb: LLVMBasicBlockRef, outputs: &[i8]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `LLVM_TRUE` is never used [INFO] [stdout] --> src/lib/llvm.rs:17:7 [INFO] [stdout] | [INFO] [stdout] 17 | const LLVM_TRUE: LLVMBool = 1; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `CompileContext` is never constructed [INFO] [stdout] --> src/lib/llvm.rs:262:8 [INFO] [stdout] | [INFO] [stdout] 262 | struct CompileContext { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `int8` is never used [INFO] [stdout] --> src/lib/llvm.rs:270:11 [INFO] [stdout] | [INFO] [stdout] 270 | unsafe fn int8(val: c_ulonglong) -> LLVMValueRef { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `compile_static_outputs` is never used [INFO] [stdout] --> src/lib/llvm.rs:439:4 [INFO] [stdout] | [INFO] [stdout] 439 | fn compile_static_outputs(module: &mut Module, bb: LLVMBasicBlockRef, outputs: &[i8]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/main.rs:74:23 [INFO] [stdout] | [INFO] [stdout] 74 | let object_file = try!(convert_io_error(NamedTempFile::new())); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/main.rs:74:23 [INFO] [stdout] | [INFO] [stdout] 74 | let object_file = try!(convert_io_error(NamedTempFile::new())); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` 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 2.46s [INFO] running `Command { std: "docker" "inspect" "a6e38e894001ec4ae4e8d7400493d468d4e80da28a5132247e0d7393d2d1634f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a6e38e894001ec4ae4e8d7400493d468d4e80da28a5132247e0d7393d2d1634f", kill_on_drop: false }` [INFO] [stdout] a6e38e894001ec4ae4e8d7400493d468d4e80da28a5132247e0d7393d2d1634f [INFO] checking jcompiler-0.1.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate jcompiler 0.1.0 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate jcompiler 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 jcompiler 0.1.0 [INFO] finished tweaking crates.io crate jcompiler 0.1.0 [INFO] tweaked toml for crates.io crate jcompiler 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [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] f4e914c84fbb929f508fdf18cf47499394cc3f7fcc96c6f5425118aac5bcd822 [INFO] running `Command { std: "docker" "start" "-a" "f4e914c84fbb929f508fdf18cf47499394cc3f7fcc96c6f5425118aac5bcd822", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f4e914c84fbb929f508fdf18cf47499394cc3f7fcc96c6f5425118aac5bcd822", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f4e914c84fbb929f508fdf18cf47499394cc3f7fcc96c6f5425118aac5bcd822", kill_on_drop: false }` [INFO] [stdout] f4e914c84fbb929f508fdf18cf47499394cc3f7fcc96c6f5425118aac5bcd822 [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] ba88f608cac1c7dad436918f51c0363aa72cedef327c929633f1ddc527f834f1 [INFO] running `Command { std: "docker" "start" "-a" "ba88f608cac1c7dad436918f51c0363aa72cedef327c929633f1ddc527f834f1", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.7.2 [INFO] [stderr] Compiling ucd-trie v0.1.6 [INFO] [stderr] Checking aho-corasick v1.1.3 [INFO] [stderr] Compiling thiserror v1.0.58 [INFO] [stderr] Checking regex v0.1.80 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking tempfile v2.2.0 [INFO] [stderr] Checking itertools v0.4.19 [INFO] [stderr] Checking pest v2.7.9 [INFO] [stderr] Checking ansi_term v0.9.0 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-0.1.80/src/exec.rs:726:13 [INFO] [stdout] | [INFO] [stdout] 726 | / match dfa::Fsm::reverse( [INFO] [stdout] 727 | | &self.ro.dfa_reverse, [INFO] [stdout] 728 | | &self.cache, [INFO] [stdout] 729 | | false, [INFO] [stdout] ... | [INFO] [stdout] 736 | | Quit => return Some(Quit), [INFO] [stdout] 737 | | }; [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" "ba88f608cac1c7dad436918f51c0363aa72cedef327c929633f1ddc527f834f1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ba88f608cac1c7dad436918f51c0363aa72cedef327c929633f1ddc527f834f1", kill_on_drop: false }` [INFO] [stdout] ba88f608cac1c7dad436918f51c0363aa72cedef327c929633f1ddc527f834f1