[INFO] fetching crate kill-desktop 0.3.4... [INFO] checking kill-desktop-0.3.4 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate kill-desktop 0.3.4 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate kill-desktop 0.3.4 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 kill-desktop 0.3.4 [INFO] finished tweaking crates.io crate kill-desktop 0.3.4 [INFO] tweaked toml for crates.io crate kill-desktop 0.3.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate crates.io crate kill-desktop 0.3.4 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 serde v1.0.104 [INFO] [stderr] Downloaded terminal_size v0.1.10 [INFO] [stderr] Downloaded proc-macro2 v1.0.8 [INFO] [stderr] Downloaded serde_derive v1.0.104 [INFO] [stderr] Downloaded backtrace v0.3.44 [INFO] [stderr] Downloaded cc v1.0.50 [INFO] [stderr] Downloaded libc v0.2.67 [INFO] [stderr] Downloaded backtrace-sys v0.1.32 [INFO] [stderr] Downloaded failure v0.1.6 [INFO] [stderr] Downloaded nix v0.17.0 [INFO] [stderr] Downloaded aho-corasick v0.7.8 [INFO] [stderr] Downloaded regex-syntax v0.6.14 [INFO] [stderr] Downloaded regex v1.3.4 [INFO] [stderr] Downloaded syn v1.0.15 [INFO] [stderr] Downloaded xcb v0.9.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 283d887f76b25ba29ad9c247dcc6d2f8b91bb4890419090f90988ac9a920102f [INFO] running `Command { std: "docker" "start" "-a" "283d887f76b25ba29ad9c247dcc6d2f8b91bb4890419090f90988ac9a920102f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "283d887f76b25ba29ad9c247dcc6d2f8b91bb4890419090f90988ac9a920102f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "283d887f76b25ba29ad9c247dcc6d2f8b91bb4890419090f90988ac9a920102f", kill_on_drop: false }` [INFO] [stdout] 283d887f76b25ba29ad9c247dcc6d2f8b91bb4890419090f90988ac9a920102f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ffea6d45f125162f7a7ed6e4ec1e33db90f3c262d1ff36f47973580bb811b59f [INFO] running `Command { std: "docker" "start" "-a" "ffea6d45f125162f7a7ed6e4ec1e33db90f3c262d1ff36f47973580bb811b59f", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.67 [INFO] [stderr] Compiling cc v1.0.50 [INFO] [stderr] Compiling proc-macro2 v1.0.8 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling syn v1.0.15 [INFO] [stderr] Compiling serde v1.0.104 [INFO] [stderr] Checking rustc-demangle v0.1.16 [INFO] [stderr] Compiling nix v0.17.0 [INFO] [stderr] Checking regex-syntax v0.6.14 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking aho-corasick v0.7.8 [INFO] [stderr] Compiling backtrace-sys v0.1.32 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling xcb v0.9.0 [INFO] [stderr] Checking dirs-sys v0.3.4 [INFO] [stderr] Checking terminal_size v0.1.10 [INFO] [stderr] Checking dirs v2.0.2 [INFO] [stderr] Checking backtrace v0.3.44 [INFO] [stderr] Checking regex v1.3.4 [INFO] [stderr] Checking failure v0.1.6 [INFO] [stderr] Checking toml v0.5.6 [INFO] [stderr] Compiling serde_derive v1.0.104 [INFO] [stderr] Checking kill-desktop v0.3.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `dirs` is imported redundantly [INFO] [stdout] --> src/config.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use dirs; [INFO] [stdout] | ^^^^ the item `dirs` 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 `regex` is imported redundantly [INFO] [stdout] --> src/config.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use regex; [INFO] [stdout] | ^^^^^ the item `regex` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `toml` is imported redundantly [INFO] [stdout] --> src/config.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use toml; [INFO] [stdout] | ^^^^ the item `toml` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `xcb` is imported redundantly [INFO] [stdout] --> src/x.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use xcb; [INFO] [stdout] | ^^^ the item `xcb` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `dirs` is imported redundantly [INFO] [stdout] --> src/config.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use dirs; [INFO] [stdout] | ^^^^ the item `dirs` 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 `regex` is imported redundantly [INFO] [stdout] --> src/config.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use regex; [INFO] [stdout] | ^^^^^ the item `regex` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `toml` is imported redundantly [INFO] [stdout] --> src/config.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use toml; [INFO] [stdout] | ^^^^ the item `toml` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `xcb` is imported redundantly [INFO] [stdout] --> src/x.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use xcb; [INFO] [stdout] | ^^^ the item `xcb` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `PidInfo` is never constructed [INFO] [stdout] --> src/main.rs:32:8 [INFO] [stdout] | [INFO] [stdout] 32 | struct PidInfo { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `PidInfo` is never constructed [INFO] [stdout] --> src/main.rs:32:8 [INFO] [stdout] | [INFO] [stdout] 32 | struct PidInfo { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [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] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.07s [INFO] running `Command { std: "docker" "inspect" "ffea6d45f125162f7a7ed6e4ec1e33db90f3c262d1ff36f47973580bb811b59f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ffea6d45f125162f7a7ed6e4ec1e33db90f3c262d1ff36f47973580bb811b59f", kill_on_drop: false }` [INFO] [stdout] ffea6d45f125162f7a7ed6e4ec1e33db90f3c262d1ff36f47973580bb811b59f [INFO] checking kill-desktop-0.3.4 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate kill-desktop 0.3.4 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate kill-desktop 0.3.4 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 kill-desktop 0.3.4 [INFO] finished tweaking crates.io crate kill-desktop 0.3.4 [INFO] tweaked toml for crates.io crate kill-desktop 0.3.4 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate crates.io crate kill-desktop 0.3.4 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 51f07474f3089ad8ffcd3247bf4e76f9929059b5ecc01568d9483b5c6760cb9c [INFO] running `Command { std: "docker" "start" "-a" "51f07474f3089ad8ffcd3247bf4e76f9929059b5ecc01568d9483b5c6760cb9c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "51f07474f3089ad8ffcd3247bf4e76f9929059b5ecc01568d9483b5c6760cb9c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "51f07474f3089ad8ffcd3247bf4e76f9929059b5ecc01568d9483b5c6760cb9c", kill_on_drop: false }` [INFO] [stdout] 51f07474f3089ad8ffcd3247bf4e76f9929059b5ecc01568d9483b5c6760cb9c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 47259ddb36962ed1b15eaf7da19054ba278db902cd1e1fab69eb09c36dd067c9 [INFO] running `Command { std: "docker" "start" "-a" "47259ddb36962ed1b15eaf7da19054ba278db902cd1e1fab69eb09c36dd067c9", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.67 [INFO] [stderr] Compiling proc-macro2 v1.0.8 [INFO] [stderr] Compiling cc v1.0.50 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling syn v1.0.15 [INFO] [stderr] Compiling serde v1.0.104 [INFO] [stderr] Checking rustc-demangle v0.1.16 [INFO] [stderr] Compiling nix v0.17.0 [INFO] [stderr] Checking regex-syntax v0.6.14 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking aho-corasick v0.7.8 [INFO] [stderr] Compiling backtrace-sys v0.1.32 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking dirs-sys v0.3.4 [INFO] [stderr] Checking terminal_size v0.1.10 [INFO] [stderr] Checking dirs v2.0.2 [INFO] [stderr] Compiling xcb v0.9.0 [INFO] [stderr] Checking regex v1.3.4 [INFO] [stderr] Checking backtrace v0.3.44 [INFO] [stderr] Checking failure v0.1.6 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.3.4/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" "47259ddb36962ed1b15eaf7da19054ba278db902cd1e1fab69eb09c36dd067c9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "47259ddb36962ed1b15eaf7da19054ba278db902cd1e1fab69eb09c36dd067c9", kill_on_drop: false }` [INFO] [stdout] 47259ddb36962ed1b15eaf7da19054ba278db902cd1e1fab69eb09c36dd067c9