[INFO] fetching crate littlewing 0.7.0... [INFO] checking littlewing-0.7.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate littlewing 0.7.0 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate littlewing 0.7.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate littlewing 0.7.0 [INFO] finished tweaking crates.io crate littlewing 0.7.0 [INFO] tweaked toml for crates.io crate littlewing 0.7.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate crates.io crate littlewing 0.7.0 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a58091ed6b1bf3a442acb270c68003a82e726392be7de2457e2ee442dd4154df [INFO] running `Command { std: "docker" "start" "-a" "a58091ed6b1bf3a442acb270c68003a82e726392be7de2457e2ee442dd4154df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a58091ed6b1bf3a442acb270c68003a82e726392be7de2457e2ee442dd4154df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a58091ed6b1bf3a442acb270c68003a82e726392be7de2457e2ee442dd4154df", kill_on_drop: false }` [INFO] [stdout] a58091ed6b1bf3a442acb270c68003a82e726392be7de2457e2ee442dd4154df [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] abb3525ae5ec51b4785d5d2be89ae91c7cb1d411941abd78a07ee1565081def5 [INFO] running `Command { std: "docker" "start" "-a" "abb3525ae5ec51b4785d5d2be89ae91c7cb1d411941abd78a07ee1565081def5", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking ppv-lite86 v0.2.6 [INFO] [stderr] Compiling nix v0.17.0 [INFO] [stderr] Compiling syn v1.0.11 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking unicode-segmentation v1.6.0 [INFO] [stderr] Checking utf8parse v0.2.0 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking rand_xorshift v0.2.0 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking no-std-compat v0.4.1 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking c2-chacha v0.2.3 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking dirs-sys-next v0.1.0 [INFO] [stderr] Checking dirs-sys v0.3.5 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking dirs-next v1.0.1 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking dirs v3.0.0 [INFO] [stderr] Compiling rustyline-derive v0.3.1 [INFO] [stderr] Checking rustyline v6.2.0 [INFO] [stderr] Checking littlewing v0.7.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition name: `std` [INFO] [stdout] --> src/search.rs:91:25 [INFO] [stdout] | [INFO] [stdout] 91 | let n = if cfg!(std) { self.threads_count } else { 0 }; [INFO] [stdout] | ^^^ help: found config with similar value: `feature = "std"` [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `fmt_debug`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows` [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(std)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(std)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `std` [INFO] [stdout] --> src/search.rs:91:25 [INFO] [stdout] | [INFO] [stdout] 91 | let n = if cfg!(std) { self.threads_count } else { 0 }; [INFO] [stdout] | ^^^ help: found config with similar value: `feature = "std"` [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `fmt_debug`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows` [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(std)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(std)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.60s [INFO] running `Command { std: "docker" "inspect" "abb3525ae5ec51b4785d5d2be89ae91c7cb1d411941abd78a07ee1565081def5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "abb3525ae5ec51b4785d5d2be89ae91c7cb1d411941abd78a07ee1565081def5", kill_on_drop: false }` [INFO] [stdout] abb3525ae5ec51b4785d5d2be89ae91c7cb1d411941abd78a07ee1565081def5