[INFO] cloning repository https://github.com/Zanadar/carapice [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Zanadar/carapice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZanadar%2Fcarapice", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZanadar%2Fcarapice'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] db1de46619926a59e0480be640fd6a46209b0c80 [INFO] checking Zanadar/carapice against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZanadar%2Fcarapice" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Zanadar/carapice 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/Zanadar/carapice [INFO] finished tweaking git repo https://github.com/Zanadar/carapice [INFO] tweaked toml for git repo https://github.com/Zanadar/carapice written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Zanadar/carapice 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 memchr v2.1.0 [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] 78eceb5a43e98b108f75f700c9cc5b071c67d558da1d24385f03eaedc68bcfd4 [INFO] running `Command { std: "docker" "start" "-a" "78eceb5a43e98b108f75f700c9cc5b071c67d558da1d24385f03eaedc68bcfd4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "78eceb5a43e98b108f75f700c9cc5b071c67d558da1d24385f03eaedc68bcfd4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "78eceb5a43e98b108f75f700c9cc5b071c67d558da1d24385f03eaedc68bcfd4", kill_on_drop: false }` [INFO] [stdout] 78eceb5a43e98b108f75f700c9cc5b071c67d558da1d24385f03eaedc68bcfd4 [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] 7453d7798bf4776f2abf0129a4d82bd0b891bd418ca1c0802ac13c2648cd4f56 [INFO] running `Command { std: "docker" "start" "-a" "7453d7798bf4776f2abf0129a4d82bd0b891bd418ca1c0802ac13c2648cd4f56", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.1.0 [INFO] [stderr] Checking libc v0.2.43 [INFO] [stderr] Checking ucd-util v0.1.1 [INFO] [stderr] Checking utf8-ranges v1.0.1 [INFO] [stderr] Checking regex-syntax v0.6.2 [INFO] [stderr] Checking aho-corasick v0.6.8 [INFO] [stderr] Checking regex v1.0.5 [INFO] [stderr] Checking carapice v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `regex::Regex` [INFO] [stdout] --> src/main.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use regex::Regex; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `regex::Regex` [INFO] [stdout] --> src/main.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use regex::Regex; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:54:5 [INFO] [stdout] | [INFO] [stdout] 12 | / loop { [INFO] [stdout] 13 | | io::stdout().write_all(b"> ")?; [INFO] [stdout] 14 | | io::stdout().flush()?; [INFO] [stdout] 15 | | // read line from standard input [INFO] [stdout] ... | [INFO] [stdout] 51 | | } [INFO] [stdout] 52 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 53 | [INFO] [stdout] 54 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:54:5 [INFO] [stdout] | [INFO] [stdout] 12 | / loop { [INFO] [stdout] 13 | | io::stdout().write_all(b"> ")?; [INFO] [stdout] 14 | | io::stdout().flush()?; [INFO] [stdout] 15 | | // read line from standard input [INFO] [stdout] ... | [INFO] [stdout] 51 | | } [INFO] [stdout] 52 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 53 | [INFO] [stdout] 54 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/main.rs:2:21 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{self, Read, Write}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/main.rs:2:21 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{self, Read, Write}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `stdin` [INFO] [stdout] --> src/main.rs:60:12 [INFO] [stdout] | [INFO] [stdout] 60 | fn new(stdin: String) -> Cmd { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_stdin` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `stdin` [INFO] [stdout] --> src/main.rs:60:12 [INFO] [stdout] | [INFO] [stdout] 60 | fn new(stdin: String) -> Cmd { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_stdin` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Cmd` is never constructed [INFO] [stdout] --> src/main.rs:57:8 [INFO] [stdout] | [INFO] [stdout] 57 | struct Cmd {} [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Cmd` is never constructed [INFO] [stdout] --> src/main.rs:57:8 [INFO] [stdout] | [INFO] [stdout] 57 | struct Cmd {} [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/main.rs:60:8 [INFO] [stdout] | [INFO] [stdout] 59 | impl Cmd { [INFO] [stdout] | -------- associated function in this implementation [INFO] [stdout] 60 | fn new(stdin: String) -> Cmd { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Token` is never used [INFO] [stdout] --> src/main.rs:68:6 [INFO] [stdout] | [INFO] [stdout] 68 | enum Token { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/main.rs:60:8 [INFO] [stdout] | [INFO] [stdout] 59 | impl Cmd { [INFO] [stdout] | -------- associated function in this implementation [INFO] [stdout] 60 | fn new(stdin: String) -> Cmd { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Token` is never used [INFO] [stdout] --> src/main.rs:68:6 [INFO] [stdout] | [INFO] [stdout] 68 | enum Token { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.34s [INFO] running `Command { std: "docker" "inspect" "7453d7798bf4776f2abf0129a4d82bd0b891bd418ca1c0802ac13c2648cd4f56", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7453d7798bf4776f2abf0129a4d82bd0b891bd418ca1c0802ac13c2648cd4f56", kill_on_drop: false }` [INFO] [stdout] 7453d7798bf4776f2abf0129a4d82bd0b891bd418ca1c0802ac13c2648cd4f56 [INFO] checking Zanadar/carapice against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZanadar%2Fcarapice" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Zanadar/carapice 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/Zanadar/carapice [INFO] finished tweaking git repo https://github.com/Zanadar/carapice [INFO] tweaked toml for git repo https://github.com/Zanadar/carapice written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Zanadar/carapice 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] 03df48991d635b1030d4c02d1f13f425583f2f84c853a484d2e0ab4a58445317 [INFO] running `Command { std: "docker" "start" "-a" "03df48991d635b1030d4c02d1f13f425583f2f84c853a484d2e0ab4a58445317", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "03df48991d635b1030d4c02d1f13f425583f2f84c853a484d2e0ab4a58445317", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "03df48991d635b1030d4c02d1f13f425583f2f84c853a484d2e0ab4a58445317", kill_on_drop: false }` [INFO] [stdout] 03df48991d635b1030d4c02d1f13f425583f2f84c853a484d2e0ab4a58445317 [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] 48058d40c2181b5708e539e57e49d2c4305bf811d156793a867a682de244ad35 [INFO] running `Command { std: "docker" "start" "-a" "48058d40c2181b5708e539e57e49d2c4305bf811d156793a867a682de244ad35", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.1.0 [INFO] [stderr] Checking libc v0.2.43 [INFO] [stderr] Checking ucd-util v0.1.1 [INFO] [stderr] Checking utf8-ranges v1.0.1 [INFO] [stderr] Checking regex-syntax v0.6.2 [INFO] [stderr] Checking aho-corasick v0.6.8 [INFO] [stderr] Checking regex v1.0.5 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.0.5/src/exec.rs:754:13 [INFO] [stdout] | [INFO] [stdout] 754 | / match dfa::Fsm::reverse( [INFO] [stdout] 755 | | &self.ro.dfa_reverse, [INFO] [stdout] 756 | | self.cache, [INFO] [stdout] 757 | | false, [INFO] [stdout] ... | [INFO] [stdout] 764 | | Quit => return Some(Quit), [INFO] [stdout] 765 | | }; [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" "48058d40c2181b5708e539e57e49d2c4305bf811d156793a867a682de244ad35", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "48058d40c2181b5708e539e57e49d2c4305bf811d156793a867a682de244ad35", kill_on_drop: false }` [INFO] [stdout] 48058d40c2181b5708e539e57e49d2c4305bf811d156793a867a682de244ad35