[INFO] cloning repository https://github.com/x-hansong/kvs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/x-hansong/kvs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fx-hansong%2Fkvs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fx-hansong%2Fkvs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6af8f524a2e274391715421899944f8c101bfcc0 [INFO] checking x-hansong/kvs against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fx-hansong%2Fkvs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/x-hansong/kvs 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 git repo https://github.com/x-hansong/kvs [INFO] finished tweaking git repo https://github.com/x-hansong/kvs [INFO] tweaked toml for git repo https://github.com/x-hansong/kvs written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/x-hansong/kvs 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 predicates-tree v1.0.2 [INFO] [stderr] Downloaded predicates v1.0.7 [INFO] [stderr] Downloaded libc v0.2.86 [INFO] [stderr] Downloaded regex-syntax v0.6.22 [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] 6c45845719cab029150012957ccbbcbf7ba467ea773f9225091669b62c3b07c9 [INFO] running `Command { std: "docker" "start" "-a" "6c45845719cab029150012957ccbbcbf7ba467ea773f9225091669b62c3b07c9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6c45845719cab029150012957ccbbcbf7ba467ea773f9225091669b62c3b07c9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6c45845719cab029150012957ccbbcbf7ba467ea773f9225091669b62c3b07c9", kill_on_drop: false }` [INFO] [stdout] 6c45845719cab029150012957ccbbcbf7ba467ea773f9225091669b62c3b07c9 [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] 5c3c3c207b72f7516d64b6a6be80c4017838a9293479a36333a06fae3de85f16 [INFO] running `Command { std: "docker" "start" "-a" "5c3c3c207b72f7516d64b6a6be80c4017838a9293479a36333a06fae3de85f16", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling syn v1.0.60 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling serde_derive v1.0.123 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling serde v1.0.123 [INFO] [stderr] Compiling libc v0.2.86 [INFO] [stderr] Checking once_cell v1.5.2 [INFO] [stderr] Compiling serde_json v1.0.62 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking regex-syntax v0.6.22 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Checking predicates-core v1.0.2 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking thread_local v1.1.3 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking hashbrown v0.9.1 [INFO] [stderr] Checking textwrap v0.12.1 [INFO] [stderr] Checking predicates-tree v1.0.2 [INFO] [stderr] Checking os_str_bytes v2.4.0 [INFO] [stderr] Checking termcolor v1.1.2 [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling indexmap v1.6.1 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Compiling quote v1.0.8 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking float-cmp v0.8.0 [INFO] [stderr] Checking regex v1.4.3 [INFO] [stderr] Checking predicates v1.0.7 [INFO] [stderr] Compiling clap_derive v3.0.0-beta.2 [INFO] [stderr] Checking clap v3.0.0-beta.2 [INFO] [stderr] Checking assert_cmd v0.11.1 [INFO] [stderr] Checking kvs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `get` [INFO] [stdout] --> src/bin/kvs.rs:48:22 [INFO] [stdout] | [INFO] [stdout] 48 | Command::Get(get) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_get` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `set` [INFO] [stdout] --> src/bin/kvs.rs:52:22 [INFO] [stdout] | [INFO] [stdout] 52 | Command::Set(set) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_set` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rm` [INFO] [stdout] --> src/bin/kvs.rs:56:21 [INFO] [stdout] | [INFO] [stdout] 56 | Command::Rm(rm) => { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_rm` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `key` is never read [INFO] [stdout] --> src/bin/kvs.rs:27:5 [INFO] [stdout] | [INFO] [stdout] 25 | struct Get { [INFO] [stdout] | --- field in this struct [INFO] [stdout] 26 | #[clap()] [INFO] [stdout] 27 | key: String, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `key` is never read [INFO] [stdout] --> src/bin/kvs.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 31 | struct Rm { [INFO] [stdout] | -- field in this struct [INFO] [stdout] 32 | #[clap()] [INFO] [stdout] 33 | key: String, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `key` and `value` are never read [INFO] [stdout] --> src/bin/kvs.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 37 | struct Set { [INFO] [stdout] | --- fields in this struct [INFO] [stdout] 38 | #[clap()] [INFO] [stdout] 39 | key: String, [INFO] [stdout] | ^^^ [INFO] [stdout] 40 | #[clap()] [INFO] [stdout] 41 | value: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `get` [INFO] [stdout] --> src/bin/kvs.rs:48:22 [INFO] [stdout] | [INFO] [stdout] 48 | Command::Get(get) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_get` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `set` [INFO] [stdout] --> src/bin/kvs.rs:52:22 [INFO] [stdout] | [INFO] [stdout] 52 | Command::Set(set) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_set` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rm` [INFO] [stdout] --> src/bin/kvs.rs:56:21 [INFO] [stdout] | [INFO] [stdout] 56 | Command::Rm(rm) => { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_rm` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `key` is never read [INFO] [stdout] --> src/bin/kvs.rs:27:5 [INFO] [stdout] | [INFO] [stdout] 25 | struct Get { [INFO] [stdout] | --- field in this struct [INFO] [stdout] 26 | #[clap()] [INFO] [stdout] 27 | key: String, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `key` is never read [INFO] [stdout] --> src/bin/kvs.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 31 | struct Rm { [INFO] [stdout] | -- field in this struct [INFO] [stdout] 32 | #[clap()] [INFO] [stdout] 33 | key: String, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `key` and `value` are never read [INFO] [stdout] --> src/bin/kvs.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 37 | struct Set { [INFO] [stdout] | --- fields in this struct [INFO] [stdout] 38 | #[clap()] [INFO] [stdout] 39 | key: String, [INFO] [stdout] | ^^^ [INFO] [stdout] 40 | #[clap()] [INFO] [stdout] 41 | value: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.35s [INFO] running `Command { std: "docker" "inspect" "5c3c3c207b72f7516d64b6a6be80c4017838a9293479a36333a06fae3de85f16", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5c3c3c207b72f7516d64b6a6be80c4017838a9293479a36333a06fae3de85f16", kill_on_drop: false }` [INFO] [stdout] 5c3c3c207b72f7516d64b6a6be80c4017838a9293479a36333a06fae3de85f16 [INFO] checking x-hansong/kvs against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fx-hansong%2Fkvs" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/x-hansong/kvs 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 git repo https://github.com/x-hansong/kvs [INFO] finished tweaking git repo https://github.com/x-hansong/kvs [INFO] tweaked toml for git repo https://github.com/x-hansong/kvs written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/x-hansong/kvs 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] 0ff0f14aaac19e6515279b22c4aa88425022f98a4ca192f9c92fecb1da42790e [INFO] running `Command { std: "docker" "start" "-a" "0ff0f14aaac19e6515279b22c4aa88425022f98a4ca192f9c92fecb1da42790e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0ff0f14aaac19e6515279b22c4aa88425022f98a4ca192f9c92fecb1da42790e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0ff0f14aaac19e6515279b22c4aa88425022f98a4ca192f9c92fecb1da42790e", kill_on_drop: false }` [INFO] [stdout] 0ff0f14aaac19e6515279b22c4aa88425022f98a4ca192f9c92fecb1da42790e [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] 16346e14f01e33fec60f65be2d1bbdd53f8ccea31302811d8c934bdccfaed756 [INFO] running `Command { std: "docker" "start" "-a" "16346e14f01e33fec60f65be2d1bbdd53f8ccea31302811d8c934bdccfaed756", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling syn v1.0.60 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling serde_derive v1.0.123 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling serde v1.0.123 [INFO] [stderr] Compiling serde_json v1.0.62 [INFO] [stderr] Compiling libc v0.2.86 [INFO] [stderr] Checking once_cell v1.5.2 [INFO] [stderr] Checking regex-syntax v0.6.22 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Checking predicates-core v1.0.2 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking hashbrown v0.9.1 [INFO] [stderr] Checking thread_local v1.1.3 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] Checking textwrap v0.12.1 [INFO] [stderr] Checking os_str_bytes v2.4.0 [INFO] [stderr] Checking predicates-tree v1.0.2 [INFO] [stderr] Checking strsim v0.10.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking termcolor v1.1.2 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling indexmap v1.6.1 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Compiling quote v1.0.8 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking float-cmp v0.8.0 [INFO] [stderr] Checking regex v1.4.3 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.4.3/src/exec.rs:841:13 [INFO] [stdout] | [INFO] [stdout] 841 | / match dfa::Fsm::reverse( [INFO] [stdout] 842 | | &self.ro.dfa_reverse, [INFO] [stdout] 843 | | self.cache.value(), [INFO] [stdout] 844 | | false, [INFO] [stdout] ... | [INFO] [stdout] 855 | | Quit => return Some(Quit), [INFO] [stdout] 856 | | }; [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" "16346e14f01e33fec60f65be2d1bbdd53f8ccea31302811d8c934bdccfaed756", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "16346e14f01e33fec60f65be2d1bbdd53f8ccea31302811d8c934bdccfaed756", kill_on_drop: false }` [INFO] [stdout] 16346e14f01e33fec60f65be2d1bbdd53f8ccea31302811d8c934bdccfaed756