[INFO] fetching crate cargo-nono 0.1.9... [INFO] checking cargo-nono-0.1.9 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate cargo-nono 0.1.9 into /workspace/builds/worker-5-tc1/source [INFO] validating manifest of crates.io crate cargo-nono 0.1.9 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 cargo-nono 0.1.9 [INFO] finished tweaking crates.io crate cargo-nono 0.1.9 [INFO] tweaked toml for crates.io crate cargo-nono 0.1.9 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate crates.io crate cargo-nono 0.1.9 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 serde_derive v1.0.116 [INFO] [stderr] Downloaded clicolors-control v1.0.1 [INFO] [stderr] Downloaded instant v0.1.7 [INFO] [stderr] Downloaded predicates-tree v1.0.0 [INFO] [stderr] Downloaded termios v0.3.2 [INFO] [stderr] Downloaded console v0.7.7 [INFO] [stderr] Downloaded proc-macro2 v1.0.23 [INFO] [stderr] Downloaded escargot v0.4.0 [INFO] [stderr] Downloaded predicates-core v1.0.0 [INFO] [stderr] Downloaded predicates v1.0.5 [INFO] [stderr] Downloaded assert_cmd v0.11.1 [INFO] [stderr] Downloaded cargo_metadata v0.8.2 [INFO] [stderr] Downloaded libc v0.2.77 [INFO] [stderr] Downloaded hermit-abi v0.1.16 [INFO] [stderr] Downloaded treeline v0.1.0 [INFO] [stderr] Downloaded serde v1.0.116 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 66809469afc4683cb7eb4c4b079593a6bf5159a33d938ec99eebd01a496060c2 [INFO] running `Command { std: "docker" "start" "-a" "66809469afc4683cb7eb4c4b079593a6bf5159a33d938ec99eebd01a496060c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "66809469afc4683cb7eb4c4b079593a6bf5159a33d938ec99eebd01a496060c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "66809469afc4683cb7eb4c4b079593a6bf5159a33d938ec99eebd01a496060c2", kill_on_drop: false }` [INFO] [stdout] 66809469afc4683cb7eb4c4b079593a6bf5159a33d938ec99eebd01a496060c2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 41182a210f958b468ac806ce97fcc3247325fa155c477a92109997cc9bb0d382 [INFO] running `Command { std: "docker" "start" "-a" "41182a210f958b468ac806ce97fcc3247325fa155c477a92109997cc9bb0d382", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.23 [INFO] [stderr] Compiling syn v1.0.42 [INFO] [stderr] Compiling libc v0.2.77 [INFO] [stderr] Compiling serde_derive v1.0.116 [INFO] [stderr] Compiling serde v1.0.116 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.57 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Checking instant v0.1.7 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking smallvec v1.4.2 [INFO] [stderr] Checking unicode-xid v0.2.1 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Checking lock_api v0.4.1 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Checking predicates-core v1.0.0 [INFO] [stderr] Checking semver-parser v0.7.0 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking quote v1.0.7 [INFO] [stderr] Compiling cargo-nono v0.1.9 (/opt/rustwide/workdir) [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking predicates-tree v1.0.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking parking_lot_core v0.8.0 [INFO] [stderr] Checking clicolors-control v1.0.1 [INFO] [stderr] Checking termios v0.3.2 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking parking_lot v0.11.0 [INFO] [stderr] Checking predicates v1.0.5 [INFO] [stderr] Checking glob v0.3.0 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking console v0.7.7 [INFO] [stderr] Checking semver v0.9.0 [INFO] [stderr] Checking cargo_metadata v0.8.2 [INFO] [stderr] Checking assert_cmd v0.11.1 [INFO] [stdout] warning: the item `proc_macro2` is imported redundantly [INFO] [stdout] --> src/check.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use proc_macro2; [INFO] [stdout] | ^^^^^^^^^^^ the item `proc_macro2` 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 `proc_macro2` is imported redundantly [INFO] [stdout] --> src/check.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use proc_macro2; [INFO] [stdout] | ^^^^^^^^^^^ the item `proc_macro2` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `item_tree` is never read [INFO] [stdout] --> src/check_source.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 23 | pub struct UseStdStmt { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 24 | src_path: PathBuf, [INFO] [stdout] 25 | item_tree: syn::UseTree, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `UseStdStmt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `item_tree` is never read [INFO] [stdout] --> src/check_source.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 23 | pub struct UseStdStmt { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 24 | src_path: PathBuf, [INFO] [stdout] 25 | item_tree: syn::UseTree, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `UseStdStmt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.26s [INFO] running `Command { std: "docker" "inspect" "41182a210f958b468ac806ce97fcc3247325fa155c477a92109997cc9bb0d382", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "41182a210f958b468ac806ce97fcc3247325fa155c477a92109997cc9bb0d382", kill_on_drop: false }` [INFO] [stdout] 41182a210f958b468ac806ce97fcc3247325fa155c477a92109997cc9bb0d382 [INFO] checking cargo-nono-0.1.9 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate cargo-nono 0.1.9 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate cargo-nono 0.1.9 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 cargo-nono 0.1.9 [INFO] finished tweaking crates.io crate cargo-nono 0.1.9 [INFO] tweaked toml for crates.io crate cargo-nono 0.1.9 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate crates.io crate cargo-nono 0.1.9 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 85475aa83f2ed7c216cb9115fc2248df9715e8cd1f69c4c579add35c1a481fc5 [INFO] running `Command { std: "docker" "start" "-a" "85475aa83f2ed7c216cb9115fc2248df9715e8cd1f69c4c579add35c1a481fc5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "85475aa83f2ed7c216cb9115fc2248df9715e8cd1f69c4c579add35c1a481fc5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "85475aa83f2ed7c216cb9115fc2248df9715e8cd1f69c4c579add35c1a481fc5", kill_on_drop: false }` [INFO] [stdout] 85475aa83f2ed7c216cb9115fc2248df9715e8cd1f69c4c579add35c1a481fc5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 2a0a8bbe61a00f7d837171ba78b02dc407ecebefc0ce773176190f3d784fb56d [INFO] running `Command { std: "docker" "start" "-a" "2a0a8bbe61a00f7d837171ba78b02dc407ecebefc0ce773176190f3d784fb56d", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.23 [INFO] [stderr] Compiling syn v1.0.42 [INFO] [stderr] Compiling libc v0.2.77 [INFO] [stderr] Compiling serde_derive v1.0.116 [INFO] [stderr] Compiling serde v1.0.116 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.57 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Checking instant v0.1.7 [INFO] [stderr] Checking unicode-xid v0.2.1 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking smallvec v1.4.2 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking lock_api v0.4.1 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking predicates-core v1.0.0 [INFO] [stderr] Checking semver-parser v0.7.0 [INFO] [stderr] Compiling cargo-nono v0.1.9 (/opt/rustwide/workdir) [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking quote v1.0.7 [INFO] [stderr] Checking predicates v1.0.5 [INFO] [stderr] Checking parking_lot_core v0.8.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking termios v0.3.2 [INFO] [stderr] Checking clicolors-control v1.0.1 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking parking_lot v0.11.0 [INFO] [stderr] Checking predicates-tree v1.0.0 [INFO] [stderr] Checking glob v0.3.0 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.3.9/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" "2a0a8bbe61a00f7d837171ba78b02dc407ecebefc0ce773176190f3d784fb56d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2a0a8bbe61a00f7d837171ba78b02dc407ecebefc0ce773176190f3d784fb56d", kill_on_drop: false }` [INFO] [stdout] 2a0a8bbe61a00f7d837171ba78b02dc407ecebefc0ce773176190f3d784fb56d