[INFO] fetching crate leb128 0.2.5... [INFO] checking leb128-0.2.5 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate leb128 0.2.5 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate leb128 0.2.5 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 leb128 0.2.5 [INFO] finished tweaking crates.io crate leb128 0.2.5 [INFO] tweaked toml for crates.io crate leb128 0.2.5 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate crates.io crate leb128 0.2.5 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] 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] e1183aee1a17d0e06b20fa8c62e8d572975751a521bc2426a1420247b727da8d [INFO] running `Command { std: "docker" "start" "-a" "e1183aee1a17d0e06b20fa8c62e8d572975751a521bc2426a1420247b727da8d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e1183aee1a17d0e06b20fa8c62e8d572975751a521bc2426a1420247b727da8d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e1183aee1a17d0e06b20fa8c62e8d572975751a521bc2426a1420247b727da8d", kill_on_drop: false }` [INFO] [stdout] e1183aee1a17d0e06b20fa8c62e8d572975751a521bc2426a1420247b727da8d [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] b59c630db1f2a868649338d35857007909763b40c7b75a5992a9da89b77d584f [INFO] running `Command { std: "docker" "start" "-a" "b59c630db1f2a868649338d35857007909763b40c7b75a5992a9da89b77d584f", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling libc v0.2.103 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking leb128 v0.2.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `leb128` is imported redundantly [INFO] [stdout] --> src/bin/leb128-repl.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use leb128; [INFO] [stdout] | ^^^^^^ the item `leb128` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking env_logger v0.6.2 [INFO] [stderr] Checking quickcheck v0.8.5 [INFO] [stdout] warning: the item `leb128` is imported redundantly [INFO] [stdout] --> benches/bench.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use leb128; [INFO] [stdout] | ^^^^^^ the item `leb128` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `leb128` is imported redundantly [INFO] [stdout] --> src/bin/leb128-repl.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use leb128; [INFO] [stdout] | ^^^^^^ the item `leb128` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `leb128` is imported redundantly [INFO] [stdout] --> tests/quickchecks.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use leb128; [INFO] [stdout] | ^^^^^^ the item `leb128` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `quickcheck` is imported redundantly [INFO] [stdout] --> tests/quickchecks.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use quickcheck; [INFO] [stdout] | ^^^^^^^^^^ the item `quickcheck` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `std` is imported redundantly [INFO] [stdout] --> src/lib.rs:246:9 [INFO] [stdout] | [INFO] [stdout] 246 | use std; [INFO] [stdout] | ^^^ the item `std` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [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] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.97s [INFO] running `Command { std: "docker" "inspect" "b59c630db1f2a868649338d35857007909763b40c7b75a5992a9da89b77d584f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b59c630db1f2a868649338d35857007909763b40c7b75a5992a9da89b77d584f", kill_on_drop: false }` [INFO] [stdout] b59c630db1f2a868649338d35857007909763b40c7b75a5992a9da89b77d584f [INFO] checking leb128-0.2.5 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate leb128 0.2.5 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate leb128 0.2.5 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 leb128 0.2.5 [INFO] finished tweaking crates.io crate leb128 0.2.5 [INFO] tweaked toml for crates.io crate leb128 0.2.5 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate crates.io crate leb128 0.2.5 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] 5b3bedfe87c99d517ef7d9295a5be8e25037044a0cc4de1770112e7ab3b9dc55 [INFO] running `Command { std: "docker" "start" "-a" "5b3bedfe87c99d517ef7d9295a5be8e25037044a0cc4de1770112e7ab3b9dc55", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5b3bedfe87c99d517ef7d9295a5be8e25037044a0cc4de1770112e7ab3b9dc55", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5b3bedfe87c99d517ef7d9295a5be8e25037044a0cc4de1770112e7ab3b9dc55", kill_on_drop: false }` [INFO] [stdout] 5b3bedfe87c99d517ef7d9295a5be8e25037044a0cc4de1770112e7ab3b9dc55 [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] e0bd1e765034926ca9057081635d40c5638f4f127ea529ceb2c14d9fd4a004c2 [INFO] running `Command { std: "docker" "start" "-a" "e0bd1e765034926ca9057081635d40c5638f4f127ea529ceb2c14d9fd4a004c2", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling libc v0.2.103 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking leb128 v0.2.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `leb128` is imported redundantly [INFO] [stdout] --> src/bin/leb128-repl.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use leb128; [INFO] [stdout] | ^^^^^^ the item `leb128` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.5.4/src/exec.rs:848:13 [INFO] [stdout] | [INFO] [stdout] 848 | / match dfa::Fsm::reverse( [INFO] [stdout] 849 | | &self.ro.dfa_reverse, [INFO] [stdout] 850 | | self.cache.value(), [INFO] [stdout] 851 | | false, [INFO] [stdout] ... | [INFO] [stdout] 862 | | Quit => return Some(Quit), [INFO] [stdout] 863 | | }; [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" "e0bd1e765034926ca9057081635d40c5638f4f127ea529ceb2c14d9fd4a004c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e0bd1e765034926ca9057081635d40c5638f4f127ea529ceb2c14d9fd4a004c2", kill_on_drop: false }` [INFO] [stdout] e0bd1e765034926ca9057081635d40c5638f4f127ea529ceb2c14d9fd4a004c2