[INFO] fetching crate cntr-fuse 0.4.1... [INFO] checking cntr-fuse-0.4.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate cntr-fuse 0.4.1 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate cntr-fuse 0.4.1 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 cntr-fuse 0.4.1 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate cntr-fuse 0.4.1 [INFO] tweaked toml for crates.io crate cntr-fuse 0.4.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate crates.io crate cntr-fuse 0.4.1 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] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded cntr-fuse-abi v0.4.1 [INFO] [stderr] Downloaded env_logger v0.8.3 [INFO] [stderr] Downloaded cntr-fuse-sys v0.4.1 [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] 15b82d077f19e8f56f52dc61b28a7eaa6dab768ba4a700dcfbd14dc7dd9a2c9b [INFO] running `Command { std: "docker" "start" "-a" "15b82d077f19e8f56f52dc61b28a7eaa6dab768ba4a700dcfbd14dc7dd9a2c9b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "15b82d077f19e8f56f52dc61b28a7eaa6dab768ba4a700dcfbd14dc7dd9a2c9b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "15b82d077f19e8f56f52dc61b28a7eaa6dab768ba4a700dcfbd14dc7dd9a2c9b", kill_on_drop: false }` [INFO] [stdout] 15b82d077f19e8f56f52dc61b28a7eaa6dab768ba4a700dcfbd14dc7dd9a2c9b [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] 7b3d82826e49bfc4d83a16dd4965447d3ad9caf138c3039e82a4e3144ba19ccf [INFO] running `Command { std: "docker" "start" "-a" "7b3d82826e49bfc4d83a16dd4965447d3ad9caf138c3039e82a4e3144ba19ccf", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.86 [INFO] [stderr] Compiling pkg-config v0.3.19 [INFO] [stderr] Checking regex-syntax v0.6.20 [INFO] [stderr] Checking cntr-fuse-abi v0.4.1 [INFO] [stderr] Checking termcolor v1.1.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking aho-corasick v0.7.14 [INFO] [stderr] Compiling cntr-fuse-sys v0.4.1 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking cntr-fuse v0.4.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `libc` is imported redundantly [INFO] [stdout] --> src/channel.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 13 | use libc::{self, c_void, size_t}; [INFO] [stdout] | ^^^^ the item `libc` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `RequestError` [INFO] [stdout] --> src/ll/mod.rs:6:39 [INFO] [stdout] | [INFO] [stdout] 6 | pub use request::{Operation, Request, RequestError}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `AsRef` is imported redundantly [INFO] [stdout] --> src/reply.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::convert::AsRef; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `AsRef` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `libc` is imported redundantly [INFO] [stdout] --> src/reply.rs:22:12 [INFO] [stdout] | [INFO] [stdout] 22 | use libc::{self, c_int, S_IFIFO, S_IFCHR, S_IFBLK, S_IFDIR, S_IFREG, S_IFLNK, S_IFSOCK, EIO}; [INFO] [stdout] | ^^^^ the item `libc` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking regex v1.4.1 [INFO] [stdout] warning: field `unique` is never read [INFO] [stdout] --> src/reply.rs:234:5 [INFO] [stdout] | [INFO] [stdout] 232 | pub struct ReplyRead { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 233 | reply: ReplyRaw<()>, [INFO] [stdout] 234 | unique: u64 [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ReplyRead` 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: field `data` is never read [INFO] [stdout] --> src/request.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 33 | pub struct Request<'a> { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 37 | data: &'a [u8], [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Request` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking env_logger v0.8.3 [INFO] [stdout] warning: the item `libc` is imported redundantly [INFO] [stdout] --> src/channel.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 13 | use libc::{self, c_void, size_t}; [INFO] [stdout] | ^^^^ the item `libc` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `RequestError` [INFO] [stdout] --> src/ll/mod.rs:6:39 [INFO] [stdout] | [INFO] [stdout] 6 | pub use request::{Operation, Request, RequestError}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `AsRef` is imported redundantly [INFO] [stdout] --> src/reply.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::convert::AsRef; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `AsRef` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `libc` is imported redundantly [INFO] [stdout] --> src/reply.rs:22:12 [INFO] [stdout] | [INFO] [stdout] 22 | use libc::{self, c_int, S_IFIFO, S_IFCHR, S_IFBLK, S_IFDIR, S_IFREG, S_IFLNK, S_IFSOCK, EIO}; [INFO] [stdout] | ^^^^ the item `libc` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `unique` is never read [INFO] [stdout] --> src/reply.rs:234:5 [INFO] [stdout] | [INFO] [stdout] 232 | pub struct ReplyRead { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 233 | reply: ReplyRaw<()>, [INFO] [stdout] 234 | unique: u64 [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ReplyRead` 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: field `data` is never read [INFO] [stdout] --> src/request.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 33 | pub struct Request<'a> { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 37 | data: &'a [u8], [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Request` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.47s [INFO] running `Command { std: "docker" "inspect" "7b3d82826e49bfc4d83a16dd4965447d3ad9caf138c3039e82a4e3144ba19ccf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7b3d82826e49bfc4d83a16dd4965447d3ad9caf138c3039e82a4e3144ba19ccf", kill_on_drop: false }` [INFO] [stdout] 7b3d82826e49bfc4d83a16dd4965447d3ad9caf138c3039e82a4e3144ba19ccf [INFO] checking cntr-fuse-0.4.1 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate cntr-fuse 0.4.1 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate cntr-fuse 0.4.1 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 cntr-fuse 0.4.1 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate cntr-fuse 0.4.1 [INFO] tweaked toml for crates.io crate cntr-fuse 0.4.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate crates.io crate cntr-fuse 0.4.1 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-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] cf448beef612f581ab1d7b19bb0343697f2d510ddc1e14e4d8a1e977738a7636 [INFO] running `Command { std: "docker" "start" "-a" "cf448beef612f581ab1d7b19bb0343697f2d510ddc1e14e4d8a1e977738a7636", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cf448beef612f581ab1d7b19bb0343697f2d510ddc1e14e4d8a1e977738a7636", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cf448beef612f581ab1d7b19bb0343697f2d510ddc1e14e4d8a1e977738a7636", kill_on_drop: false }` [INFO] [stdout] cf448beef612f581ab1d7b19bb0343697f2d510ddc1e14e4d8a1e977738a7636 [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] dd5482b18bfc2a63edb4d77c5e1c675bbfd1941194f3896d79f30799cce6b3e8 [INFO] running `Command { std: "docker" "start" "-a" "dd5482b18bfc2a63edb4d77c5e1c675bbfd1941194f3896d79f30799cce6b3e8", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.86 [INFO] [stderr] Compiling pkg-config v0.3.19 [INFO] [stderr] Checking regex-syntax v0.6.20 [INFO] [stderr] Checking cntr-fuse-abi v0.4.1 [INFO] [stderr] Checking termcolor v1.1.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking aho-corasick v0.7.14 [INFO] [stderr] Compiling cntr-fuse-sys v0.4.1 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking cntr-fuse v0.4.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `libc` is imported redundantly [INFO] [stdout] --> src/channel.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 13 | use libc::{self, c_void, size_t}; [INFO] [stdout] | ^^^^ the item `libc` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `RequestError` [INFO] [stdout] --> src/ll/mod.rs:6:39 [INFO] [stdout] | [INFO] [stdout] 6 | pub use request::{Operation, Request, RequestError}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `AsRef` is imported redundantly [INFO] [stdout] --> src/reply.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::convert::AsRef; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `AsRef` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `libc` is imported redundantly [INFO] [stdout] --> src/reply.rs:22:12 [INFO] [stdout] | [INFO] [stdout] 22 | use libc::{self, c_int, S_IFIFO, S_IFCHR, S_IFBLK, S_IFDIR, S_IFREG, S_IFLNK, S_IFSOCK, EIO}; [INFO] [stdout] | ^^^^ the item `libc` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking regex v1.4.1 [INFO] [stdout] warning: field `unique` is never read [INFO] [stdout] --> src/reply.rs:234:5 [INFO] [stdout] | [INFO] [stdout] 232 | pub struct ReplyRead { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 233 | reply: ReplyRaw<()>, [INFO] [stdout] 234 | unique: u64 [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ReplyRead` 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: field `data` is never read [INFO] [stdout] --> src/request.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 33 | pub struct Request<'a> { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 37 | data: &'a [u8], [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Request` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.4.1/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] running `Command { std: "docker" "inspect" "dd5482b18bfc2a63edb4d77c5e1c675bbfd1941194f3896d79f30799cce6b3e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dd5482b18bfc2a63edb4d77c5e1c675bbfd1941194f3896d79f30799cce6b3e8", kill_on_drop: false }` [INFO] [stdout] dd5482b18bfc2a63edb4d77c5e1c675bbfd1941194f3896d79f30799cce6b3e8