[INFO] fetching crate rscan 0.2.1... [INFO] checking rscan-0.2.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate rscan 0.2.1 into /workspace/builds/worker-3-tc1/source [INFO] validating manifest of crates.io crate rscan 0.2.1 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 rscan 0.2.1 [INFO] finished tweaking crates.io crate rscan 0.2.1 [INFO] tweaked toml for crates.io crate rscan 0.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate crates.io crate rscan 0.2.1 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 pnet_macros v0.31.0 [INFO] [stderr] Downloaded pnet_transport v0.31.0 [INFO] [stderr] Downloaded ipnetwork v0.19.0 [INFO] [stderr] Downloaded pnet_base v0.31.0 [INFO] [stderr] Downloaded pnet_macros_support v0.31.0 [INFO] [stderr] Downloaded pnet_packet v0.31.0 [INFO] [stderr] Downloaded pnet_datalink v0.31.0 [INFO] [stderr] Downloaded pnet v0.31.0 [INFO] [stderr] Downloaded pnet_sys v0.31.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 016ca818765e5b310cc94f1654169ad0c40973696e02e413ad30869306a9700e [INFO] running `Command { std: "docker" "start" "-a" "016ca818765e5b310cc94f1654169ad0c40973696e02e413ad30869306a9700e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "016ca818765e5b310cc94f1654169ad0c40973696e02e413ad30869306a9700e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "016ca818765e5b310cc94f1654169ad0c40973696e02e413ad30869306a9700e", kill_on_drop: false }` [INFO] [stdout] 016ca818765e5b310cc94f1654169ad0c40973696e02e413ad30869306a9700e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 8c5d4a96f5746a8977a120d763fe760ccfff87c7f4fbd2c989041c1de6b04fdf [INFO] running `Command { std: "docker" "start" "-a" "8c5d4a96f5746a8977a120d763fe760ccfff87c7f4fbd2c989041c1de6b04fdf", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-ident v1.0.2 [INFO] [stderr] Checking no-std-net v0.6.0 [INFO] [stderr] Compiling syn v1.0.98 [INFO] [stderr] Compiling regex-syntax v0.6.27 [INFO] [stderr] Compiling serde v1.0.140 [INFO] [stderr] Checking pnet_sys v0.31.0 [INFO] [stderr] Compiling pnet v0.31.0 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Checking getrandom v0.2.7 [INFO] [stderr] Checking pnet_base v0.31.0 [INFO] [stderr] Compiling proc-macro2 v1.0.40 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking pnet_macros_support v0.31.0 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Compiling quote v1.0.20 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Compiling regex v1.6.0 [INFO] [stderr] Checking ipnetwork v0.19.0 [INFO] [stderr] Checking pnet_datalink v0.31.0 [INFO] [stderr] Compiling pnet_macros v0.31.0 [INFO] [stderr] Checking pnet_packet v0.31.0 [INFO] [stderr] Checking pnet_transport v0.31.0 [INFO] [stderr] Checking rscan v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `pnet` is imported redundantly [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use pnet; [INFO] [stdout] | ^^^^ the item `pnet` 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 `pnet_datalink` is imported redundantly [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use pnet_datalink; [INFO] [stdout] | ^^^^^^^^^^^^^ the item `pnet_datalink` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `pnet_transport` is imported redundantly [INFO] [stdout] --> src/main.rs:7:22 [INFO] [stdout] | [INFO] [stdout] 7 | use pnet_transport::{self, icmp_packet_iter}; [INFO] [stdout] | ^^^^ the item `pnet_transport` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `rand` is imported redundantly [INFO] [stdout] --> src/main.rs:8:12 [INFO] [stdout] | [INFO] [stdout] 8 | use rand::{self, Rng}; [INFO] [stdout] | ^^^^ the item `rand` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `pnet` is imported redundantly [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use pnet; [INFO] [stdout] | ^^^^ the item `pnet` 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 `pnet_datalink` is imported redundantly [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use pnet_datalink; [INFO] [stdout] | ^^^^^^^^^^^^^ the item `pnet_datalink` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `pnet_transport` is imported redundantly [INFO] [stdout] --> src/main.rs:7:22 [INFO] [stdout] | [INFO] [stdout] 7 | use pnet_transport::{self, icmp_packet_iter}; [INFO] [stdout] | ^^^^ the item `pnet_transport` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `rand` is imported redundantly [INFO] [stdout] --> src/main.rs:8:12 [INFO] [stdout] | [INFO] [stdout] 8 | use rand::{self, Rng}; [INFO] [stdout] | ^^^^ the item `rand` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.85s [INFO] running `Command { std: "docker" "inspect" "8c5d4a96f5746a8977a120d763fe760ccfff87c7f4fbd2c989041c1de6b04fdf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8c5d4a96f5746a8977a120d763fe760ccfff87c7f4fbd2c989041c1de6b04fdf", kill_on_drop: false }` [INFO] [stdout] 8c5d4a96f5746a8977a120d763fe760ccfff87c7f4fbd2c989041c1de6b04fdf [INFO] checking rscan-0.2.1 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate rscan 0.2.1 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate rscan 0.2.1 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 rscan 0.2.1 [INFO] finished tweaking crates.io crate rscan 0.2.1 [INFO] tweaked toml for crates.io crate rscan 0.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate crates.io crate rscan 0.2.1 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 41131f75817b2ce199b8525aff03dcf9410352f26dc1e8aff9d9ee467fdc1953 [INFO] running `Command { std: "docker" "start" "-a" "41131f75817b2ce199b8525aff03dcf9410352f26dc1e8aff9d9ee467fdc1953", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "41131f75817b2ce199b8525aff03dcf9410352f26dc1e8aff9d9ee467fdc1953", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "41131f75817b2ce199b8525aff03dcf9410352f26dc1e8aff9d9ee467fdc1953", kill_on_drop: false }` [INFO] [stdout] 41131f75817b2ce199b8525aff03dcf9410352f26dc1e8aff9d9ee467fdc1953 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 549fca1f56af7667f29144fb9bfbe406b9db199bd8cababb8515f4e113705688 [INFO] running `Command { std: "docker" "start" "-a" "549fca1f56af7667f29144fb9bfbe406b9db199bd8cababb8515f4e113705688", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-ident v1.0.2 [INFO] [stderr] Compiling syn v1.0.98 [INFO] [stderr] Checking no-std-net v0.6.0 [INFO] [stderr] Compiling serde v1.0.140 [INFO] [stderr] Compiling regex-syntax v0.6.27 [INFO] [stderr] Compiling pnet v0.31.0 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Checking pnet_sys v0.31.0 [INFO] [stderr] Checking getrandom v0.2.7 [INFO] [stderr] Checking pnet_base v0.31.0 [INFO] [stderr] Compiling proc-macro2 v1.0.40 [INFO] [stderr] Checking pnet_macros_support v0.31.0 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Compiling quote v1.0.20 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Compiling regex v1.6.0 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.6.0/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] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "549fca1f56af7667f29144fb9bfbe406b9db199bd8cababb8515f4e113705688", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "549fca1f56af7667f29144fb9bfbe406b9db199bd8cababb8515f4e113705688", kill_on_drop: false }` [INFO] [stdout] 549fca1f56af7667f29144fb9bfbe406b9db199bd8cababb8515f4e113705688